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BMW Eccentric Shaft Position Sensor Replacement
 
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Pelican Technical Article:

BMW Eccentric Shaft Position Sensor Replacement

Nick Czerula

Time:

6 hours6 hrs

Tab:

$300

Talent:

*****

Tools:

Set of sockets, Flathead screwdriver

Applicable Models:

BMW 325i Sedan (2006)
BMW 325xi Sedan/Wagon (2006)
BMW 328i Coupe/Conv (2007-13)
BMW 328i xDrive Coupe (2009-13)
BMW 328i xDrive Sedan (2009-11)
BMW 328i xDrive Wagon (2009-12)
BMW 328i/xi Sedan (2007-11)
BMW 328i/xi Wagon (2007-12)
BMW 328xi Coupe (2007-13)
BMW 330i/xi Sedan (2006)

Parts Required:

Eccentric shaft sensor, eccentric shaft sensor seal, valve cover gasket, electrical terminal spray cleaner

Hot Tip:

Work with a cool engine.

Performance Gain:

Remedy oil leaks

Complementary Modification:

Replace valve cover gasket

The eccentric shaft position sensor is used as a feedback for the Valvetronic eccentric camshaft. The eccentric shaft is actuated by the Valvetronic motor and in return controls variable intake valve lift. The eccentric shaft sensor is mounted to the cylinder head beneath the valve cover. The top of the sensor protrudes up through valve cover and is sealed by a rubber gasket. The eccentric shaft sensor tends to wick engine oil up through electrical connector, creating an oil leak at top front of valve cover. If you suspect your sensor is leaking, follow these steps to inspect and replace it. This is a time consuming repair, so plan a day for it and have everything you need on hand before you begin.

Remove engine covers. See our tech article on engine cover removing.

Unplug the eccentric shaft sensor electrical connector by detaching locking tabs with a small flathead screwdriver and pulling up and out of sensor.
Figure 1

Unplug the eccentric shaft sensor electrical connector by detaching locking tabs with a small flathead screwdriver and pulling up and out of sensor.

Inspect sensor and electrical connector for signs of engine oil.
Figure 2

Inspect sensor and electrical connector for signs of engine oil. If any is found, replace eccentric shaft sensor, eccentric shaft sensor seal and clean electrical connector with terminal cleaner. (green arrows) Remove valve cover. See our tech article on valve cover replacing.

Once valve cover has been removed, you will have to remove the eccentric shaft sensor fasteners (green arrows).
Figure 3

Once valve cover has been removed, you will have to remove the eccentric shaft sensor fasteners (green arrows). The top fasteners you'll want to remove using an open end 10mm wrench. The lower fastener is accessed through a hole in timing chain guide, use a 10mm socket to remove it. When removing the fasteners, loosen each one a few turns at a time. The fasteners are captured on the sensor and doing it this way will avoid one coming free and possibly falling into engine.

Once all fasteners are loose, remove sensor from engine.
Figure 4

Once all fasteners are loose, remove sensor from engine. Note how fasteners stay attached to sensor when removing. (green arrows) Install new sensor and evenly tighten each fastener a few turns at a time until they are bottomed out, then torque. Be very careful not to cross-thread any of them.

Once new sensor is installed remove eccentric shaft sensor seal from valve cover.
Figure 5

Once new sensor is installed remove eccentric shaft sensor seal from valve cover. Gently lever seal out of valve cover using a flathead screwdriver. (green arrow) Do not install new seal yet. Leaving out while installing valve cover makes installation easier. Reinstall valve cover. See our tech article on valve cover replacing.

With valve cover installed, press new eccentric shaft seal into valve cover.
Figure 6

With valve cover installed, press new eccentric shaft seal into valve cover. I like to use a socket to press seal into valve cover. A 30mm socket should work, depending on brand of socket, you may need something larger or smaller.

This photo shows eccentric shaft seal installed properly.
Figure 7

This photo shows eccentric shaft seal installed properly. (green arrow) Now that the eccentric shaft sensor replacement procedure is complete, you will have to assemble remaining valve cover items. See our tech article on valve cover replacing.

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Comments and Suggestions:
Parr Comments: I replace the valve cover on my 2007 BMW 328i now it won't start at all at fires but will not start so I'm wondering what's going on but calls before I replace the valve cover the car would run but it made a whistling noise sorry place the valve cover because it was the old separator now that I got everything put back together it will not start please help me!!!
November 18, 2016
  Followup from the Pelican Staff: What is missing, spark, fuel or compression? Could be an issue with the Valvetronic motor install or position. - Nick at Pelican Parts  
Tito17 Comments: Hey my 2006 bmw 330i is running rough sometimes cold starts only have code p1017, i checked the plug terminal on the eccentric shaft sensor and there is oil in it, my question is can i just replaced the gasket?? Or why do i have to replace the sensor too? Thank you
November 14, 2016
  Followup from the Pelican Staff: The sensor needs to be replaced if there is oil in the connector. That means engine oil is wicking through the sensor. Give The Pelican Parts parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 
Bimmer328ix Comments: Hi Nick,

My 2011 328ix keeps getting an intermittent CEL that only lasts about a day or 2. Engine runs rough on startup sometimes and other times it's ok when it has CEL. Runs normally when no CEL is displayed. Tech scanned the car and got 2A7C DME:VANOS, inlet. cold start and 2A82 DME:VANOS intake.

Thanks for any help you can provide.
October 27, 2016
  Followup from the Pelican Staff: Sounds like a possible issue with a VANOS unit. I would check actual verse desired camshaft angle to see if there is a deviation. - Nick at Pelican Parts  
gerhardt Comments: yes oil has the connector ... cleaned up but still low rotation, would have to change the sensor?
October 8, 2016
  Followup from the Pelican Staff: Start with a new sensor. Give The Pelican Parts parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 
gerhardt Comments: hello, my bmw 320i 2009 is having problems and it appears these codes 2851, 28b4 and the dashboard code ccid-29
already changed the solenoid but nothing changed ... car is still a little walk
October 7, 2016
  Followup from the Pelican Staff: I would stat by checking the eccentric shaft sensor, see if it has oil in the connector. - Nick at Pelican Parts  
Shahid Comments: Hi, I have a starting issue on cold starts and hope you can help. When starting the car for the first time the car starts hits 1000-1500 rpm then dies. It will then take a few attempts to start and only by pumping the gas pedal. Car is fine and smooth all day and starts first time thereafter. Battery has been replaced and the eccentric shaft sensor connector is Dry. Not getting any codes either.any ideas? Thanks
September 18, 2016
  Followup from the Pelican Staff: When your engine doesn’t start you’ll want to check the basics. Check spark, fuel injector pulse and fuel pressure, volume, quality and engine compression. Are there any fault codes? Once you figure out what is missing, it will be easier to diagnose. - Nick at Pelican Parts  
Jonathan Comments: Ok, for full disclosure, I did end up having intermittent hot start issues again. Very rare, but all the same symptoms. Then today I had a long crank and got the crankshaft position sensor code. This could have been the root of the issue all along, but it's hard to tell. It never had long crank problems before today. Got one on the way. Thanks again for the resource, hopefully my experience will help someone else.
September 16, 2016
  Followup from the Pelican Staff: AHH. Let me know what you end up finding. - Nick at Pelican Parts  
Jonathan Comments: Thanks for your feedback, Nick. Everything I have seen indicates that the X3 finds the end points for the Valvetronic motor every time you put the ignition into position 2. My problem ended up being sub par aftermarket Vanos solenoids Dorman branded. I replaced them around the same time as the sensor, and assumed they were good after swapping them to see if the code would follow. I replaced them with new OEM solenoids and the hot start problem instantly went away. No idea why hot starts pushed the aftermarket solenoids to the limits, but there you go. Happy the car is working beautifully again.
September 15, 2016
  Followup from the Pelican Staff: Thanks for the follow up. We appreciate it.
- Nick at Pelican Parts
 
Jonathan Comments: Update to my previous query: Definitely something specific to hot starts. I monitored Valvetronic eccentric shaft specified vs. actual angle and on a cold start, they would vary up and down with the revs from 30-40 degrees up to 200+ for WOT. Actual tended to lag specified by 5-10 degrees. Again, cold start, but the angles would change with rpm even after the engine was at operating temp. On a hot start, things would start normally, but then idle would briefly jump to 1200 rpm and Valvetronic angles now ramp up to 200+ degrees and STAY there. Tried swapping camshaft position sensors to see if vanos exhaust error code would swap to intake, but no change. Same 2A87 error on a hot start. Really at the end of my rope, here.
September 8, 2016
  Followup from the Pelican Staff: The lag is likely scan tool data latency. See my earlier suggestion. - Nick at Pelican Parts  
Jonathan Comments: I recently replaced this sensor on a 2008 X3 with 130K miles on the N52 engine after putting it off for a while. I also replaced the Vanos solenoid around the same time. I'm now having a strange issue on hot starts where the idle will start normally and then suddenly rise to about 1200 rpm and quickly settle back down. This causes it to throw a 2A87 code, but erasing it and driving normally with some WOT pulls throws zero codes. Any ideas? Also recently replaced oil and filter, air filter, all 4 O2 sensors, all 6 coils plugs are ~30K miles old. Tried a new MAF sensor with no change in problems.
September 8, 2016
  Followup from the Pelican Staff: Have to tried to adapt the valvetronic eccentric shaft position limits? You will need an advanced BMW scan tool. - Nick at Pelican Parts  
dreamcar Comments: I have a 2011 bmw x3. just turn 90000 miles. I was driving at regular no racing mode. on level street. upon stop light i step on the gas, and the car started to shake. an error message on the dash board say: drive moderately,maximum drive train output not available. I also notice a lag on driving at higher speed 40 to 50 mph. I was able to drive the car back home. My mechanic say the value sensor is going bad. reading is from a computer diagnostic reader for BMW cars latest. I took it to the dealer. BMW confirms a valvetronic sensor need to be replace. They want $3000 for the repair. So I took it back to my mechanic for a $1000 repair. You might need to change the valve cover gasket and other small gasket.
August 30, 2016
  Followup from the Pelican Staff: Thanks for the additional info and feedback. We appreciate it.
- Nick at Pelican Parts
 
FRED Comments: first off i want to thank you for your help,next i have gone over this car end to end still have one code that refuses to clear 2A30 ECCENTRIC SHAFT SENSOR POWER,PLEASE CLARIFY THIS CODE FOR ME WHERE IS THE FLOW CHART TO EXECUTE AND ELIMINATE ALL POSSIBILITIES,WHERE DOES THE POWER COME FROM,I NEED TO STATE THAT THIS CAR WAS IN AN ACCIDENT AND THE POSSITIVE POWER CABLE BLEW APART ON IMPACT AND THE AIR BAGS ALSO BLEW,DOES THE POWER COME FROM THE AIR BAG MODULE? THE STEERING WHEEL AIRBAG BLEW AND SO DID THE SEAT BELT PRETENSIONERS,DO I NEED TO REPLACE THE POSITIVE BATTERY CABLE?
August 30, 2016
  Followup from the Pelican Staff: The only flow charts are located in the BMW scan tool. The sensor gets power, ground and reference voltage from the DME. I do not have the wiring to share.


I would grab a repair manual. It will have the wiring and fault code description.

Give our parts specialists a call at 1-888-280-7799. - Nick at Pelican Parts
 
jack stinkicat Comments: hi Nick does the code 2A39 change the diagnosis any. I checked the eccentric connector no visible oil,but when I swabbed with some cotton there was a greasy soot. Any chance its the valvetronic motor and not the sensor. you often metion a bmw scan tool is tha something you sell
August 28, 2016
  Followup from the Pelican Staff: It could be the Valvetronic motor. However, you will have to do some testing to figure it out. Checking motor position verse desired using a BMW scan tool. Pelican should be able to get you a BMW scan tool. Before you buy, be sure it does have access to DME data stream. Give The Pelican Parts parts specialists a call at 1-888-280-7799.
- Nick at Pelican Parts
 
jack stinkicat Comments: hi 2011 328i n51 sulev my service engine soon light keeps coming on codes 2fa3 2a32 2a34 car runs ok maybe a little rough also i noticed longer crank timesa few months ago but no ses light then google led me to eccentric shaft sensor is this appropriate for these codes
August 23, 2016
  Followup from the Pelican Staff: Yes. It is a likely cause. I would check if the connector has oil in it, that is usually a telltale sign the sensor has failed. - Nick at Pelican Parts  
FRED Comments: I JUST WANTED TO FOLLOW UP WITH THIS 2008 528IX WITH THE ECCENTRIC SHAFT POWER CODE 2A30,JUST TO NOTE THE CODE NEVER CLEARS ENGINE OFF OR ON THE CODE REMAINS LOGGED I ALSO NOTICED WHEN DOING AN ECM RESET THE VALVETRONIC MOTOR IS NOT ADJUSTING PROPERLY SO I LEAVE THE SCANNER HOOKED UP AND UNPLUG THE VALVETRONIC MOTOR AND TRY TO MANUALLY ADJUST IT WITH AN ALLEN KEY SOCKET JUST TO SEE IF I AM SEEING ANY DIFFERENCE IN POSITION AND I AM NOT SCANNER SAYS ACTUAL POSITION AND REQUESTED POSITION AND REQUESTED JUST REMAINS AT 0 DEGREES AND ACTUAL SAYS LIKE 243 OR SOMETHING LIKE THAT,THANKS AGAIN FOR YOUR IN PUT,CAN THE ACTUAL MECHANICAL PARTS INSIDE BE NOT MOVING?? NEED TO REMOVE VALVE COVER AGAIN AND PHYSICALLY CHECK ALL MOVING PARTS ,SOMETHING IS NOT CORRECT,SHOULD I MENTION THIS VEHICLE WAS IN A FRONT END COLLISION AND BLEW THE AIR BAGS AND ALSO THE POSITIVE BATTERY CABLE WHICH WAS REPAIRED OR SHOULD I HAVE REPLACE THE POSITIVE CABLE ALSO?? THANK YOU FOR YOU HELP
August 23, 2016
  Followup from the Pelican Staff: Mechanical parts should move and the sensor signal should change. Check the signal at the sensor, not via DME data stream. The DME may be substituting a value due to the motor fault. Also check if the motor has power and ground when the key is first turned to on, with the engine off (without attempting to start). - Nick at Pelican Parts  
FRED Comments: Yes I did a reset to the valvetronic system ,I have the BMW scanner ista-p and I also have the Autel Maxisys 908P scanner which is exactilly as the same as the BMW system,I'm also a former BMW tech,
August 17, 2016
  Followup from the Pelican Staff: if you relearned the system, I would check data stream to confirm the DME is seeing the shaft position signal. earlier you noted battery power and reference voltage were OK, so the only thing left is the signal to the DME. - Nick at Pelican Parts  
FRED Comments: I NEED SOME SERIOUS HELP HERE I CHANGED THE ECCENTRIC SHAFT SENSOR WITH THE ORIGINAL VDO SENSOR AND I AM STILL GETTING THE SAME CODE 2A30 ECCENTRIC SHAFT SENSOR POWER MISSING I DON'T UNDERSTAND IT I HAVE CHECKED EVERYTHING SOUP TO NUTS HERE 2008 E60 528IX ACCORDING TO THE WIRING DIAGRAM I SHOULD HAVE 4.75 VOLTS TO 5.25 VOLTS THE 40 AMP FUSE IS OK,THE RELAY IS OK THE SENSOR IS NEW COULD IT BE THE DME CONTROL MODULE IF ANYONE HAS ANY IN PUT PLEASE HELP,THE WIRING DIAG. SAY A ONLY 1 WIRE IS ACTUALLY B+ BELIEVE IT IS #6 AT THE SENSOR
August 14, 2016
  Followup from the Pelican Staff: have you performed the limit stop adaptation? If not, clear faults and perform it using a BMW scan tool. - Nick at Pelican Parts  
darren Comments: hi there, i have a n46n engine, have just replaced the eccentric sensor but it is still giving me a random 2851 error every so often, faintest bit of hesitation on takeoff but then it just wants to go?
any suggestions?
August 14, 2016
  Followup from the Pelican Staff: You'll want to perform a limit stop adaptation for the Valvetronic. If the fault returns, check actual verse desired lift. If off, there may be a mechanical issue. - Nick at Pelican Parts  
Porto Comments: Have a 2A67 code, on a 118i; car seems to run ok even though a bit sluggish, if I change the valvetronic eccentric shaft sensor will problem be solved? @ £350 bit expensive if problem does not go away. Thanks
July 20, 2016
  Followup from the Pelican Staff: It could be the motor or shaft sensor. Check desired verse actual valvetronic angle.- Nick at Pelican Parts  
Heffe Comments: Good afternoon,
My 2008 BMW 328I 65,000 miles hesitates on starting first thing in the morning only. Has rarely stalled first thing in the morning, mostly hesitation and, without using accelerator, it corrects itself within a minute and idles nicely. No codes showing and starts up perfectly the rest of the day. BMW says it's probably an eccentric sensor, but no promises. Estimate is $1800 with all taxes incl.
Brought it to a mechanic not familiar with BMW's but he said he did notice some oil leakagenot sure where but couldn't recommend a solution as he is not familiar with BMW's. Any other possible solutions to try before expending all that money and it might not be the eccentric sensor? Many thanks.
June 23, 2016
  Followup from the Pelican Staff: if you suspect the eccentric shaft, first confirm you have the items needed to start.

is fuel pressure and volume good? Is spark present? Monitor the camshaft timing using a BMW scan tool at start up when the problem is present, is the desired spec different than actual? - Nick at Pelican Parts
 
yanga Comments: Hi I have a BMW e90 n43 engine it does not start up,my mechanic say she cut the spark but fuel is pumping nice and his scanner says it's the valvetronic eccentric sensor.so is it possible that is the fault
June 15, 2016
  Followup from the Pelican Staff: it is possible the sensor is the cause. This is a common one for no starts. - Nick at Pelican Parts  
Tanya Comments: I am at mercy of BMW Dealer mechanics! But don't want to get ripped off. I have 2011 335 I. I was told I need an eccentric shaft and a valvetronic motor. Estimate $3900 plus tax. I will probably walk out with close to $4500. Am i being ripped off.
Frustrated female driver trying to learn what the fair cost of repairs on the above 2 parts should cost.
June 14, 2016
  Followup from the Pelican Staff: I am not sure what the repair will cost in your area. Call a few shops and ask for a quote. It is also a good idea to have them confirm what the issue is.
- Nick at Pelican Parts
 
Bill 2.0 Comments: My 5 year old 528i began bucking, loosing power and stalling especially when first starting. Took it to the BMW dealer and was told my Eccentric shafts sensor is malfunctioning and needs to be replaced for $1600. Is this about right or am I being taken?
May 28, 2016
  Followup from the Pelican Staff: I would assume they are right. No reason to think they would be off.

I am not sure what the repair will cost in your area. Call a few shops and ask for a quote. It is also a good idea to have them confirm what the issue is.
- Nick at Pelican Parts
 
Mike Comments: Please confirm- is the sensor or the seal the source of the leak?

You write above: "The eccentric shaft sensor tends to wick engine oil up through electrical connector".

Elsewhere I have read that it is the seal leaking as would be expected which leads to the damage of the sensor.

Any comments on remedies for related oil contamination of the wiring harness which can damage the DME would also be appreciated. Thanks! Great resource! Long time customer.
May 25, 2016
  Followup from the Pelican Staff: Both can leak. The seal and the sensor wicks oil through itself. - Nick at Pelican Parts  
Leoo Comments: Due to the possibility that my valvetronic motor is one electronic component that has an issue , I decided replacing it .No matter what as I understand it, valvetronic limits should be set and pcm go through a relearning procedure .Then, check vanos actual verse desired angle, and whatever the outcome measurement, relearning procedure has to be repeated ?
May 19, 2016
  Followup from the Pelican Staff: Valvetronic can't adjust VANOS angle, if VANOS angle is off, the timing components, actuators or solenoids may be faulty.

if replacing a Vavletronic motor, perform the limit stop relearn using a BMW scan tool. - Nick at Pelican Parts
 
siri Comments: My BMW 528i started to shake on start. Local mechanic shop said, it has codes for Eccentric shaft sensor and he suggested replacing spark plugs as well. Decided to schedule the service for the week-end. On the way from my work, car stalled at the red light and fortunately started again and made it home. I want to take care of the issue ASAP. My mechanic said that it should take about an hour and he didn't the cost of the sensor and he estimates total cost $500-$800. Should I be concerned with his knowledge of this repair? He is an ASE certified mechanic.
May 3, 2016
  Followup from the Pelican Staff: I can;t comment on his experience. If you don't think he can do it, take it to a BMW specialty shop. - Nick at Pelican Parts  
Jason Comments: Hi There, I have an 06 330i and it wont start, thought it was a fuel problem, replaced filter/regulator and it still wont start, no lights on in the dash, I pulled out codes P1017, P1024, P107C, P1076 and P1030. I did notice oil on the eccentric shaft position sensor, would this stop the car from starting, it did act up a few days ago but then went away now its back and the car is dead
May 1, 2016
  Followup from the Pelican Staff: Depends on what is missing when you are trying to start it.

When your engine doesn’t start you’ll want to check the basics. Check spark, fuel injector pulse and fuel pressure, volume, quality and engine compression. Are there any fault codes? Once you figure out what is missing, it will be easier to diagnose.

The eccentric shaft, if the fault is big enough could cause a valve lift issue and the DME may prevent starting. - Nick at Pelican Parts
 
Leoo Comments: Hi, I'm new here. Keep reading these thread , I realized I might get right service info. On my 2006 BMW 325 I. p0012 always come up whenever engine warmed up usually on a stop with an few second surging idle then followed by a high pitch squealing or whistling noise. Intake vanos Sol. Been replaced and so with camshaft sensor both located in front of engine. Exhaust vanos not replaced. Some times with this issue going on for the Last 2 month car just suddenly stall on a stop though will start thereafter. Thanx. I'll appreciate any advise
April 28, 2016
  Followup from the Pelican Staff: I would assume you have an engine timing issue or faulty Valvetronic system. Best bet is to check the Valvetronic limits using a BMW scan tool, also check the VANOS actual verse desired angles. - Nick at Pelican Parts  
ArmandE90 Comments: Update: oddly there are no engine lights are on and there are no stored fault codes. Lifters still ticking and the car is still hesitant. Suspecting either a timing issue or time to replace the eccentric shaft sensor.
April 24, 2016
  Followup from the Pelican Staff: if there is ticking, it could be an oil pressure issue. Timing can be checked pretty easy using timing tools. - Nick at Pelican Parts  
ArmandE90 Comments: Hi, I have a 2006 325i. I posted here about a month ago suspecting my engine timing was off. After cleaning the VANOS solenoids and connectors the car ran great for a week. But this weekend it started running like it did before I cleaned the solenoids. It is very hesitant, lacks power and is guzzling gas. But this time it isn't throwing any codes. I checked all the vacuum hoses and intake. All were fine. When I cleaned the solenoids L I inspected the eccentric shaft sensor's plug it was covered in oil. Could this be the source of my poor performance or do I need new VANOS solenoids?
April 17, 2016
  Followup from the Pelican Staff: The eccentric shaft sensor is faulty if leaking oil.

The other issues may be related to a timing issue. Is the check engine light? I would start by checking the DME for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
Manny Comments: What's the torque specs for the eccentric sensor bolts?
Oh and yes you can change the eccentric sensor seal from top of valve cover without removing the whole valve cover.
April 17, 2016
  Followup from the Pelican Staff: I don’t have that info.



I would grab a repair manual. It will have the procedure, special tools and torque specs.

Give our parts specialists a call at 1-888-280-7799. - Nick at Pelican Parts
 
cmackey Comments: Hi, squealing from engine, sounds like belt squeal but it's not the belt. Rough idle. Pulled codes P1006 & P1017. What's your thought on this?
April 5, 2016
  Followup from the Pelican Staff: Where is the squeal coming from? How did yo determine it is not the drive belt? The codes are for the eccentric shaft system. - Nick at Pelican Parts  
John Comments: How does one relearn the stops of the valvetronic motor?
March 23, 2016
  Followup from the Pelican Staff: Using an advanced BMW scan tool. - Nick at Pelican Parts  
John Comments: You guys are off the chart with response times...thanks! In regards to the crankcase vent tube. I may have cracked it during the removal of the valve cover and was unsure if it would throw a code for MASS system. I probably should have mentioned that there is a rough idle situation. Seems to run great under acceleration. Stop at a light and idle is rough almost to the point that it feels like it wants to stall.
March 23, 2016
  Followup from the Pelican Staff: I would check for vacuum leaks, broken pips, etc. Also the relearn may solve the rough idle. - Nick at Pelican Parts  
John Comments: Thank you for the reply. I did change out the sensor a very difficult job and have cleared all codes. Now I get a 2D06 Air Mass System. Strange thing is that I did not have this code prior to changing the valvetronic sensor 2006 BMW 325i. I'm really puzzled. I did not even work in the vicinity of the Air Mass Sensor.
Is it possible, if the crankcase vent tube cracked upon removing it from the valve cover, the this may set off this code?
March 22, 2016
  Followup from the Pelican Staff: You may need to relearn the limit stops of the Valvetronic motor. You could have an air leak, but I think you would notice an idle or rough running issue as well. - Nick at Pelican Parts  
John Comments: 2006 325i has codes of 2A34 & 2A47. Code says it is the valvetronic system. Are these the sensor, motor, or both?
Thanks
March 20, 2016
  Followup from the Pelican Staff: Most likely the sensor. - Nick at Pelican Parts  
Profenx Comments: Hi. 2008 328i 100k miles. I had my Valve cover and gasket changed. After a couple weeks noticed rough idle, exhaust note change and low power. RPM increases from 650 to 1000 when I depress clutch and fluctuates sometimes at idle 400-1000. Stalls with AC on. Happens once Or twice a week with AC off. Sometimes goes away when restarting car. Tech says fault code points plausibility for eccentric sensor but no oil leak on sensor. No engine light on. Do you think it's the sensor? Could it be anything else? If the sensor is faulty wouldn't it always have idle issues?
Thanks!
March 15, 2016
  Followup from the Pelican Staff: First have the Valvetronic limit relearned. That could be the only issue. If the problem persists look at the Valvetronic motor or eccentric sensor. - Nick at Pelican Parts  
Fish Comments: Is possible to replace the seal gasket of eccentric shaft sensor without a complete cover gasket replacement? Just the seal, as you describe in the pictures 5-6-7.
Thank you
March 13, 2016
  Followup from the Pelican Staff: I never have due to the sensor being in place and possibility for damage to seal. It may be possible. if you get it done, let us know. - Nick at Pelican Parts  
Ray Comments: Thanks for your advice, what about the 29E0 and 29E1 Mixture and also for the misfire should I replace the ignition coils? It's 2007 BMW 328i
March 11, 2016
  Followup from the Pelican Staff: start with the obvious broken parts, then see what fault codes return. You can't accurately monitor fuel trim or mixture when a misfire is present. - Nick at Pelican Parts  
Ray Comments: Hi Nick, I have a 2007 BMW 328i it throws these codes 2A32 valvetronic eccentric shaft sensor reference, 2A47 valvetronic eccentric shaft sensor plausibility, 29E1 Mixture 2, 29E0 Mixture and 29CC combustion misfire on several cylinders.
It has rough idling and squalling when the engine is warm and while driving the engine shuts off, and it turns on back.
Check engine light is on.
There's oil on eccentric shaft sensor.
I replaced spark plugs and vanos solenoid o rings and I'm planning to replace the ignition coils.
March 10, 2016
  Followup from the Pelican Staff: To pinpoint the misfires, I would check spark, fuel and compression on all cylinders.

The eccentric shaft sensor having oil on the connector means it is faulty. Replace it. The Valvetronic issues may go away. - Nick at Pelican Parts
 
Jones Comments: My issue, Unstable Idle. But normal after warm up. Mine bmw e46 n42 engine.
March 10, 2016
  Followup from the Pelican Staff: Is the check engine light on? Sounds like an engine misfire. I would check spark, fuel and compression on all cylinders.
- Nick at Pelican Parts
 
jack Comments: hello, just replaced the eccentric shaft sensor seal on 08 328i. few weeks later its leaking around the seal again. do you apply somekind of sealant/glue on the seal before installing it?
February 18, 2016
  Followup from the Pelican Staff: No. I would assume either the valve cover is damaged or the seal was installed wrong. - Nick at Pelican Parts  
2007 328 XI Comments: Thanks for the advice, checked all coils, gaskets etc, when engine is cold I can reset by turning ignition on without starting and then start car runs perfect. Once I shut it off and restart problem return, reset via ignition on does not seem to make an improvement when warm. Let cool down, it will reset startup and run fine, shut of and restart problem returns, any other ideas?

Thanks
February 6, 2016
  Followup from the Pelican Staff: You may need to have the valvetronic motor limit stops relearned, using a BMW scan tool. - Nick at Pelican Parts  
2007 328 XI Comments: Hi, I replaced the valve cover gasket in my 2007 328, disconnect the battery before doing so. After putting everything back together the car runs rough. If engine cold I can do the reset by turning the engine on but not starting. Car will run fine until being shut off and restarted and then runs rough again. Reset and runs fine again until shut off and restarted. Reset does not always work. Any ideas? Error codes are missfire on 1,2,3,4,5,6.
February 2, 2016
  Followup from the Pelican Staff: I would check if you have the coils pushed all the way down, and that all the gaskets are correctly installed. - Nick at Pelican Parts  
Aj Comments: I have a 2011 528i 47k. It was cranking but no start. Had codes P1030, P1050, P1056. Towed to dealer. Dealer replaced vvt actuator solinoid told me the car was ready for pick up. I showed up to get the car $1250 later and crank no start again. Now they are saying its the excentric sensor, $1550. Do you think they misdiagnosed the actuator solinoid? Can these 2 fail simultaneously? Thanks.
January 18, 2016
  Followup from the Pelican Staff: It's impossible for me to know. Most times parts don't fail in groups, usually one thing causes the issue. Have them show you the failed component and explain what tests they used to determine each one that has failed. - Nick at Pelican Parts  
Smith Comments: Hello, please I would like be sure if these fault codes: 2A69 and 2A6B are related with Camshaft Actuator or Eccentric Shaft Position Sensor?
Thanks.
January 9, 2016
  Followup from the Pelican Staff: You didn't mention what vehicle you have, but a lot of time it is a faulty Valvetronic motor. - Nick at Pelican Parts  
Mike Comments: Will the VVT Motor need to be removed when performing this sensor replacement?
December 22, 2015
  Followup from the Pelican Staff: Yes, when the valve cover is removed. - Nick at Pelican Parts  
shane Comments: Hi in have a 2007 BMW 328xi! If my eccentric sensor is good! Can I just replace the seal? And if so do I really need to take the calve cover off just to replace the seal! Thanks!!
December 17, 2015
  Followup from the Pelican Staff: The sealing O-ring for the sensor, yes. - Nick at Pelican Parts  
Ben Comments: Would the eccentric shaft sensor cause a no spark/no start? I get code p0341. I replaced both camshaft sensors as well as the crankshaft sensor. Tested the coils and all are good with brand new spark plugs. Car has 68k miles and decently clean.
December 3, 2015
  Followup from the Pelican Staff: You may have a timing issue. When your engine doesn’t start you’ll want to check the basics. Check spark, fuel injector pulse and fuel pressure, volume, quality and engine compression. - Nick at Pelican Parts  
Mywife hatesmy-BMW Comments: Thank you. Is the actuator the same as the valvetronic motor? Is there any way to test it?
November 21, 2015
  Followup from the Pelican Staff: The actuator it at the end of the camshaft. You can test it using a BMW scan tool. Or physically inspect the return springs. - Nick at Pelican Parts  
Mywife hatesmy-BMW Comments: I have a 2008 BMW 328XI. See codes P0012 and P0015. The car stalls immediately when putting it in reverse. The car stalls at stops signs then eventually will not start at all. I have already replaced the camshaft sensors and Vanos solenoids. There is a little oil on the eccentric sensor. I'm looking to replace that next. Do you think the crank shaft sensor should be replace? It also gave a code at one point.
November 19, 2015
  Followup from the Pelican Staff: if the VANOS solenoids have been replaced and are clean, the issue may be the actuator on the end of the camshaft. - Nick at Pelican Parts  
Jim Comments: Tech did not tell me the exact code but said there are two codes one for CAM shaft and the other for CRANK shaft sensor. And since they are sort of related they would have to open the engine to know what the exact problem might be. Is this related to the eccentric sensor at all ?
November 11, 2015
  Followup from the Pelican Staff: Could be a timing issue, if the codes are related to correlation. - Nick at Pelican Parts  
Juwy Comments: Hi Nick, there are no fault codes showing, it usually does the long crank when parked overnight without driving, but once driven well during the day it doesn't. Then the next morning it does the same thing over again.
November 11, 2015
  Followup from the Pelican Staff: Check the items I mentioned when the problem is present. - Nick at Pelican Parts  
Juwy Comments: Hi. my 2011 bmw x3 f-drive always experience long cranks before starting and i dont know what the problem is. i always have to rev the pedal before it picks. please what do you think the problem is.
November 11, 2015
  Followup from the Pelican Staff: Could be the fuel pump. When your engine doesn’t start you’ll want to check the basics. Check spark, fuel injector pulse and fuel pressure, volume, quality and engine compression. Are there any fault codes? Once you figure out what is missing, it will be easier to diagnose. - Nick at Pelican Parts  
jim Comments: 2011 BMW 328 xi with 63K miles. Had a few cold starts 4 months ago my basic OBD threw P13B4 error code which apparently is an invalid code. Took it to the shop and they found oil in the spark plugs well. Replaced the eccentric sensor, seals and spark plugs. Car ran fine for a few months and now the light with the same error code is back. Had to fill one quart of oil after the repair I guess to replace the oil that had leaked. Is this a common problem with these cars ? Do I have to drop big bucks again to get it fixed.
November 9, 2015
  Followup from the Pelican Staff: That code doesn't show up in my info. You may need to read the fault using a BMW scan tool. Then you can display the four digit BMW code or the hex code. Once you have that code I may be able to offer insight. - Nick at Pelican Parts  
Sam Comments: Hey Nick.

Are your instruction relating to an E90 N46 engine? If not, are you able to provide any?

Thanks,
Sam
October 16, 2015
  Followup from the Pelican Staff: No. We don't currently have that engine in the US.

I would grab a repair manual. It will have the procedure, special tools and torque specs.
- Nick at Pelican Parts
 
Mr Dee Comments: Hi there, my 2006 bmw E90 has been displaying the half yellow engine management light for abt a year now, but has been running fine all along. when i got back from service last week, i heard a gentle knocking/vibrating sound when ever i drive off or reverse, today it started losing power and cannot exceed 60km/h. My mechanic said it could be a vvt related issue. Could you plz advise as to What could the problem be?
September 13, 2015
  Followup from the Pelican Staff: I would start by checking the DME for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.
- Nick at Pelican Parts
 
johnnyme Comments: hi guys y have a 2006 bmw 325i with a code 2a37 and the car won't star i have taken the valvetronic out and it seems to work when i apply direct power, can somebody tell me what is causing this car not to star and if the valvetronic takes 5 volts or 12
September 12, 2015
  Followup from the Pelican Staff: Do not apply power to the Valvetronic motor. I can't help without knowing what is missing from the system when you are trying to start it. When your engine doesn’t start you’ll want to check the basics. Check spark, fuel injector pulse and fuel pressure, volume, quality and engine compression. Are there any fault codes? Once you figure out what is missing, it will be easier to diagnose.
- Nick at Pelican Parts
 
Chase Comments: where is this sensor located on a 2002 BMW X5 4.4? Have a smoke issues and have heard to unplug it and the smoke will stop. Thanks
September 11, 2015
  Followup from the Pelican Staff: Your vehicle does not have this sensor. - Nick at Pelican Parts  
Sleap79 Comments: Is the only way to tell if this part is bad is if there is oil in the connector?
August 28, 2015
  Followup from the Pelican Staff: If there is oil, the sensor is likely faulty. - Nick at Pelican Parts  
2011 E90 328i Comments: Replacing just the seal?
I would like to remove and replace the eccentric shaft position sensor seal with sensor and valve cover in place. However, at 75,000 miles will the seal be deteriorated needing a scrape tool, will it crumble on removal, or will it come off in one piece?
August 5, 2015
  Followup from the Pelican Staff: I would think you can get it out in place. It shouldn't crumble at that age, but you never know. - Nick at Pelican Parts  
drew Comments: The 335i does not have valvetronic so this does not apply? Just commenting as 335i is listed as an applicable vehicle.
July 21, 2015
  Followup from the Pelican Staff: That is correct, I will have the model info updated. - Nick at Pelican Parts  
matt Comments: Hi Nick. Can you please clarify me here. Can an eccentric shaft sensor/ camshaft position sensor affect the car not to start up?
July 21, 2015
  Followup from the Pelican Staff: I have heard of the sensors causing a stall or no start. However, I have not experienced that myself. Wish I had more info for you. - Nick at Pelican Parts  
irvineautocare Comments: would the engine even start if the immobilizer had an issue? My 328i starts every time. It just turns off after idling for a few minutes. Can this be caused by the immobilizer?

Thanks
July 15, 2015
  Followup from the Pelican Staff: It may start and stall, or not crank, depends on the immobilizer fault. I would check for fault codes in the entire vehicle and check immobilizer status. - Nick at Pelican Parts  
irvineautocare Comments: 2007 328I. Replaced valve cover assembly. Now the vehicle shuts off after running for a few minutes. Will start and run. But shuts off again. No pending or stored codes in computer. Any ideas?

Geoff
Tustin, CA
July 15, 2015
  Followup from the Pelican Staff: Check if engine start is blocked by immobilizer. - Nick at Pelican Parts  
Wheel Pro Comments: Hi There, I had the car 330i E90 checked several times with no codes , the RPM shakes with rough idle all the time, after pressing gas pedal to 2.5 RPM or higher , it goes up then go down below normal position at idle afterwards which makes a strange engine shake with rpm going down then up again then down then up for 3-4 times as if the engine will power off then the shake is gone, I changed air filter and spark plugs , and still the problem is there ! is there any air leak or valve tronic sensor problem , i really don't know , please help
July 15, 2015
  Followup from the Pelican Staff: Stick with the basics first. Sounds like an engine misfire. I would check spark, fuel and compression on all cylinders.
- Nick at Pelican Parts
 
Khan Comments: My car was throwing SES light for engine misfire in cylinder 1 so today I replaced all spark plugs in my 2006 325i. This was the only code it was throwing at that time. While putting everything back thought I should clean around the eccentric shaft sensor as there was some dirt and oil residue. The SES light didnt go away so went to Autozone again to check the codes and this time there was this P1017 code for the eccentric shaft sensor. I dont understand I didnt open it or messed around with it that it would go bad. I am not sure what could the problem be.

I dont think the sensor is bad as there was no code prior to me cleaning around it.

Please advise.
July 3, 2015
  Followup from the Pelican Staff: If you have a fault code for the sensor, it may be faulty, or the connector is not seated properly. - Nick at Pelican Parts  
Taimur Comments: Nick, thank you for the writeup. I have a 2006 320i. I understand you don't have this in the US, but the principle appears the same.

Two days ago, I got fault codes permanent 2A59 and 2A5B. Half-yellow check engine light came on, but I deleted the error using a basic BT OBDII and Carly for BMW and CEL vanished. Symptoms include reduced low-range acceleration until 2500rpm, occasional rough idling.

I took it to BMW dealership today, who after a cursory check here in Pakistan they give much more time and attention to larger cars and more expensive jobs said I need to replace the valvetronic motor, eccentric shaft sensor, camshaft sensor seal/o-rings, and valve cover gasket.

The valve cover gasket is seeping a small amount of oil as well.

I then took the car to an independent mechanic, a personal friend, who said BMW is simply looking to jack up the price by upselling a number of unnecessary components - he recommends just replacing the eccentric shaft sensor and any associated haskets.

Your advice on which route to talk would be greatly appreciated.
July 2, 2015
  Followup from the Pelican Staff: I tend to trust dealer's advice. However I can only say if you feel the estimate may be unfair, seek a third opinion. Worst case, if you go by your friend's advice, you will require additional repairs. Maybe start with the sensor. - Nick at Pelican Parts  
weitzel Comments: Good evening, I have a BMW 120i 07-08, who presented the same problem as the last comment of Abib. My Bmw presented code 28b4, 2851 and 2863.As times it works normally, but just turn off and on again it loses power and crashes pin. I have done nothing of all solve the problem, she is leaking in the valve cap could be the problem? Or some sensor? Would you help me?
June 30, 2015
  Followup from the Pelican Staff: Sounds like an issue with the Valvetronic system. Check the motor and the eccentric shaft sensor. - Nick at Pelican Parts  
abib Comments: to be honest I cant see a connection between the eccentric sensor or the valvetronic motor , with that... I looks like some other sensor that is susceptible to the temperature change.. my way of thinking is based on the ideia that a broken sensor or servomotor would be broken all the time right? please let me know if I am making my self clear ... I am from Brazil and my english isn't 100% Lol... :
June 29, 2015
  Followup from the Pelican Staff: The eccentric shaft is rotated by the valvetronic motor. That is the relation. - Nick at Pelican Parts  
abib Comments: "Comments: Hi everyone , I need some help with a strange problem , I have a bmw 320i 2008 E90. After run the scan found fault codes for valvetronic and eccentric shaft sensor. But , the thing is that i have the light signal on panel, and engine runs on half power ... ok But only with the engine hot. So after the engine get cold everything goes fine again. Ex: in the morning stars ok and runs fine untill I turn it off... then I have to wait it cools down again to have 100% of power again... yes i had oil leak in the shaft sensor plug ...cleaned it but only didnt work . The question is...if the problem is with sensor and/or valvetronic why only with hot engine?? It should be half power all the time right .? It doesnt seem that exchanging sensor and valvetronic will fix , doesnt seem that the problem is with these parts, otherwise the problem would be present all the time...Please masters help me out if ou can ..thanks a lot
June 28, 2015
Followup from the Pelican Staff: If the sensor is leaking oil, start with that. Very common issue, may solve your issues. - Nick at Pelican Parts"

-- ok but I already cleaned the sensor and the plug ... and nothing changed .. What is strange is that , the car still running fine untill I turn it off, and then turn it on again the problem starts again... need to wait to engine gets cold to star with 100% power again.
June 29, 2015
  Followup from the Pelican Staff: My earlier advice remains the same. - Nick at Pelican Parts  
abib Comments: Hi everyone , I need some help with a strange problem , I have a bmw 320i 2008 E90. After run the scan found fault codes for valvetronic and eccentric shaft sensor. But , the thing is that i have the light signal on panel, and engine runs on half power ... ok But only with the engine hot. So after the engine get cold everything goes fine again. Ex: in the morning stars ok and runs fine untill I turn it off... then I have to wait it cools down again to have 100% of power again... yes i had oil leak in the shaft sensor plug ...cleaned it but only didnt work . The question is...if the problem is with sensor and/or valvetronic why only with hot engine?? It should be half power all the time right .? It doesnt seem that exchanging sensor and valvetronic will fix , doesnt seem that the problem is with these parts, otherwise the problem would be present all the time...Please masters help me out if ou can ..thanks a lot
June 28, 2015
  Followup from the Pelican Staff: If the sensor is leaking oil, start with that. Very common issue, may solve your issues. - Nick at Pelican Parts  
abib Comments: Hi everyone , I need to ask
June 28, 2015
  Followup from the Pelican Staff: Go ahead, we are listening. - Nick at Pelican Parts  
ET Comments: I have a 2007 BMW 328i,it would jerk like the engine cut off and then come back on while driving around 65/70MPH and some time cut completly off. Mostly when my fuel tank is around 1/2 or top off its at it worst. Lately when I accelarate foot to the floor it take a while to pick up speed. 178500 miles Thanks ET
June 26, 2015
  Followup from the Pelican Staff: Could be a failing fuel pump. I would perform a fuel delivery system test. Check fuel pressure, volume and quality.
- Nick at Pelican Parts
 
Ballaccj Comments: I just replaced this sensor, valve cover gasket, eccentric shaft sensor seal, valvetronic motor seal, oil filter housing gasket, oil filter and o-rings. Started it up and everything seemed to be working. However, I found a coolant leak on one of the hoses and replaced it. Then got all of the air out of the coolant system by running through the initialization procedures. Now my vehicle is struggling at idle. Throws codes 2D06, 2A2E, 2A2F, and 2D0F. It only gives all those codes 2/10 times and normally just gives 2D0F. I've had the cars stall out on me twice since these repairs. I dont think I broke the hose on the back of the valve cover 2006 325i with the metal valve cover. It snapped back on perfectly.
May 14, 2015
  Followup from the Pelican Staff: The 2D0F is for MAF sensor. I would check for cracked duct or breather line. It is likely an air leak. - Nick at Pelican Parts  
Andy Comments: 2007 x3 with a 3L. 200,000kms. Intermittent rough run and stalling. I have a p1030 and a p107a. Do you recommend eccentric cam sensor?
Thanks Andy
April 27, 2015
  Followup from the Pelican Staff: I would check Valvetronic function using a BMW scan tool. I know the current faults can sometimes be due to a bad electric motor. - Nick at Pelican Parts  
Randall Comments: Previous asked about valve cover issues with this procedure. Rapid response! Thanks! My issues are manifested during morning starts. Rough idle for a few seconds. Rest of the day- no issues. Fault codes indicate issues with the eccentric shaft sensor. Should I be looking for more?
April 23, 2015
  Followup from the Pelican Staff: Check if the sensor has oil in the electrical connector. If so, it is faulty. - Nick at Pelican Parts  
Dizzylish Comments: I have a 2003 BMW x5 with the shaft sensor codes. p1006 and 1017. I reset the motor with my scan tool. Also I checked the sensor and it is reading as I move the sensor. When I start the car it goes straight to 223 degrees and stays there. Would the sensor cause this.
April 17, 2015
  Followup from the Pelican Staff: I have not seen the eccentric shaft sensor cause engine temp issues.

Usually with your fault codes, the sensor is faulty. - Nick at Pelican Parts
 
Agustin Comments: I checked the plug and no signs of oil. Still just cranking. Only code is still p1017.
March 31, 2015
  Followup from the Pelican Staff: Check if the eccentric shaft sensor is sending a signal to the DME. It may be faulty. - Nick at Pelican Parts  
Agustin Comments: Ive had long cranking issues for over 3 months. It usually take 5-10 seconds cranking then starts up. I replaced the fuel pump and FPR but that did not fix the problem. I was coming to a light yesterday and my car started jerking then it shut off and now it just cranks but doesn't start. I got a P1017 code.
March 30, 2015
  Followup from the Pelican Staff: Check if the eccentric shaft sensor is leaking oil. If so, replace the sensor and clean the oil out of the wiring harness. - Nick at Pelican Parts  
tayfun Comments: and other problems are the fault code camshafts blockage and delays thank you
March 23, 2015
  Followup from the Pelican Staff: You didn't mention the fault codes, so I have to guess that you are trying to fix VANOS errors from the parts you mentioned you replaced. Issue could be the actuators themselves or an issue with the camshaft ledges. - Nick at Pelican Parts  
tayfun Comments: hello I wrote you to France I have a bmw 325i e90 I have trees changing a cam sensors and solenoids vanos but I still have the codes from errors petes with power and light engine and stop the engine s time to stop time
March 23, 2015
  Followup from the Pelican Staff: You didn't mention the fault codes, so I have to guess that you are trying to fix VANOS errors from the parts you mentioned you replaced. Issue could be the actuators themselves or an issue with the camshaft ledges. - Nick at Pelican Parts  
Tom Comments: I just realized that it will continue to run if I press the gas pedal and hold it to where the rpms are high enough to idle it will continue to run, please advise,thank you soo much in advance, also the car does not throw a light, until it stalls out then all of the lights on the dash appear

Tom
March 15, 2015
  Followup from the Pelican Staff: Check what I mentioned in my earlier reply. - Nick at Pelican Parts  
Tom Comments: Hi I successfully changed out my eccentric shaft sensor, valve cover gasket, eccentric shaft sensor gasket, valvetronic accuator seal, spark plugs, and changed my oil, I reconnected my battery and went through the two turn key positions prior to starting and when I turn to the second postion I hear a clanking noise from the top right side of my engine and I hear a buzzing noise that sounds like it is coming from near the bottom of my tranny behind my passenger side tire, the car starts and turns right back off, it runs for maybe two seconds, and when I turn it off I hear a clanking noise from my valvetronic sensor please advise, and thank you so much in advance, my car has been immobile for four days now,

Tom
March 15, 2015
  Followup from the Pelican Staff: Confirm the seal for the valvetronic motor is properly seated. if so, check the engine for fault codes. There will likely be one stored, directing you to the problem area.- Nick at Pelican Parts  
Ibrahim Olorunkemi Comments: How to set engine timming e90 BMW series.
March 15, 2015
  Followup from the Pelican Staff: You will need to lock the crankshaft and camshafts in place with locking tools.

We don't currently have that tech article. If we get a chance to perform the procedure, we will be sure to document it.

I would grab a repair manual. It will have the procedure, special tools and torque specs.

Give our parts specialists a call at 1-888-280-7799. - Nick at Pelican Parts
 
Bruce Comments: Do you happen to know what the BMW part # is for the crankcase vent valve?
February 26, 2015
  Followup from the Pelican Staff: No I don't. Our parts specialists will. The breathers get updated frequently.

Give our parts specialists a call at 1-888-280-7799 and they can help figure out which part or repair kit you need.
- Nick at Pelican Parts
 
Bruce Comments: Our 07 E83 is throwing 3 valvetronic codes 2A35, 36, and 47 along with two mixture control codes 29E0 and 1, a misfire code on cylinder 5 29D1 and a misfire at low tank fill level 29D9. After reading some forums it sounds like replacing the eccentric shaft sensor may help but I can't find if that has any relation to the misfire or mixture codes. Any help would be useful before the shop starts tearing into the car and hurting the wallet. The car has a loud high pitched squealing sound kind of like a belt noise and rough idle.
February 26, 2015
  Followup from the Pelican Staff: Very common. Needs the eccentric shaft sensor, and a new valve cover with integral crankcase vent valve. Squealing caused by excessive crankcase vacuum, mixture faults caused by unmetered air entering the crankcase, misfire caused by lean fuel mixture due to unmetered air. - Casey at Pelican Parts  
Manny Comments: experiencing rough idle and lack of acceleration on a 2010 328i.with 46K miles. read codes 2a32,2a34 and 2a36 for valvetronic eccentric shaft sensor reference and 2a47 and 2a37 for valvetronic eccentric shaft sensor plausibility. I followed your instructions, very helpful by the way, Thanks, found no oil leak on the sensor but i replaced any way, ad put new spark plugs . the problem is that the car run worst now and show same codes again plus misfires on 2 cylinders. what did i do wrong? what else might throw those codes? it is possible that my new sensor is defective? please help.
February 17, 2015
  Followup from the Pelican Staff: The issue may lie in the Valvetronic system. At this point you need to isolate the misfires, determine if they are related to the Valvetronic faults. Then check Valvetronic operation and limits using a BMW scan tool. - Nick at Pelican Parts  
Jamie Comments: I have a 2006 325i. Last year, I replaced the fuel pump. With the cold this year, I noticed the car having a hard start so I replaced the battery. The car ran fine for a few days and now won't start. I had 4 codes pop up P107A, P1075, P1030, and P1071. I see oil on my motor. Could this be the part that I need to replace?
January 31, 2015
  Followup from the Pelican Staff: Could be an issue with the eccentric shaft sensor. Is there oil leaking from it? The fault codes point to an error with it. - Nick at Pelican Parts  
08_328i Comments: Replaced both solenoids in front of engine and both camshaft position sensors. Still getting rough idle. Replaced all spark plugs. Plug 2 and 5 were black from heavy burnt oil. Still getting P0015 code. Question, could eccentric shaft sensor be causing that code?
January 20, 2015
  Followup from the Pelican Staff: I have not seen that caused by the eccentric shaft sensor. You probably have a bad VANOS actuator. - Nick at Pelican Parts  
whatsupbeemer Comments: i have a 2007 328i, my car runs fine however i do notice the loss of power and sometimes when im driving the car turns off if i decelerate. a couple of weeks ago i was cleaning the car and i noticed oil on my camshaft sensor. should i replace the camshaft sensor or the eccentric camshaft sensor? also what is the difference between the two?
January 15, 2015
  Followup from the Pelican Staff: II would start by checking the DME for fault codes. If the system is not working properly, a fault code will be set. This will be your best bet when diagnosing.

One monitors camshaft position.

One monitor eccentric shaft position. - Nick at Pelican Parts
 
Will Comments: Hi I replace the eccentric shaft sensor and I wrote the tread before that I'm having trouble putting the eccentric shaft sensor seal on doesn't fit I've tried every possibility seems like the seal is alittle to big I have a 2006 325i 3.0 liter I tried putting dish soap so it can help slide in but nothing I can't did it do I have the right seal ? This is the part number 11-12-7-528-242
November 11, 2014
  Followup from the Pelican Staff: That part number does look like it matches your vehicle. Give our parts specialists a call at 1-888-280-7799. They can help you sort out if there are other parts available. - Nick at Pelican Parts  
Will Comments: Hi I have a 2006 bmw 325i I'm replacing the eccentric shaft sensor I replace it already and install the valve cover already leaving the eccentric shaft sensor seal for last because I was following each step but I'm having trouble installing the seal seems like a tight fit and the 9mm socket isint working I tried kinda putting pressure and hitting it but it won't go in evenly it's my second one trying to install it and it's giving a hard time help me plz I've notice aswell the valve cover on here is the plastic one and mine is the aluminum it was hard to take the old one off now this one seems impossible to put back in . I need help plz
November 7, 2014
  Followup from the Pelican Staff: The seal should press in easily. If not, lubricate it with dish soap. I think 9mm is too small, I use a 30mm socket. - Nick at Pelican Parts  
beamerboy11 Comments: I have an 07 328xi some rough idling and a little engine power loss. After doing some research i have noticed that my 2 big concerns could be 1. Eccentric sensor 2. Ignition coils. I do not know if i have a leak of some sort but the idling is very subtle and small nothing big. I am really worried about this issue my car goes through gas like no tomorrow I'm lucky enough to get 520km out of a full tank. From previous experience and your guidance what do you suggest me to do? I have no engine codes whatsoever
September 11, 2014
  Followup from the Pelican Staff: Is the check engine light on? Sounds like an engine misfire. I would check spark, fuel and compression on all cylinders. - Nick at Pelican Parts  
Will Comments: What electrical connectors do I check ? So I can have a clue to we're I'm looking
August 28, 2014
  Followup from the Pelican Staff: The eccentric shaft sensor connector. - Nick at Pelican Parts  
Will Comments: Hi nick does are the only fault codes that came up p1024-p1017- and I checked the eccentric shaft sensor and it had oil inside ? How do I check if there is spark ? And or the pressure?
August 28, 2014
  Followup from the Pelican Staff: If the sensor has oil in the connector, replace the connector and the eccentric shaft sensor.

Check spark using a spark tester and check the fuel system using a fuel pressure tester.- Nick at Pelican Parts
 
Will Comments: Hi I have a 2006 325i from one day to another my car wouldn't turn on a couple of days before my car took about 2times to turn on then I didn't think it was nothing jzt a cold start then in the morning I turn my car on and it shut off I tried to turn it on again and it wouldn't turn it cranks and everything but it won't turn on . I don't have a scanner but one of my friends a ob2 scanner it had p1024 -p1017-0440 The firts two says the eccentric shaft sensor and the p0440 evap . I checked the eccentric sensor and it had oil so I'm guessing that might be triggering the other codes ? But is that y my car isint turning on? What do u think ?
August 25, 2014
  Followup from the Pelican Staff: I can't help without knowing what is missing from the system when you are trying to start it. When your engine doesn’t start you’ll want to check the basics. Check spark, fuel injector pulse and pressure fuel, volume and quality. Are there any fault codes? Once you figure out what is missing, it will be easier to diagnose.

The fault codes are for the eccentric shaft. Check the electrical connector for oil leaking out of the sensor.
- Nick at Pelican Parts
 
ray Comments: My car throws a P1017 code and has a stalling issue right after starting, but only after it sits for a long period of time. I removed the plug and do not see any oil in there. Do you think this could still be the issue?
August 9, 2014
  Followup from the Pelican Staff: The sensors do fail, and at times cause running issues. it could be your problem. - Nick at Pelican Parts  
taylor Comments: I just had a dealer replace my fuel pump after suddenly breaking down on the interstate. I drove my '06 325i for a couple of hours and broke down again, now the dealer is saying it's this eccentric shaft position sensor. They're quoting me at $1300 for the repair. I have a couple of contacts who are good mechanics who would probably only charge me a $20/hr for this, do you think they could do this fix if I bought the listed parts? If not, any other suggestions?
June 10, 2014
  Followup from the Pelican Staff: I don't know your friend's ability level, so I cannot comment on whether they could perform the repair or not. You can show them this procedure and see what they think. - Nick at Pelican Parts  
Fer Comments: Is it required or recommended to replace all of the coils when you do this job? If so, why?
May 12, 2014
  Followup from the Pelican Staff: Not required. It can be recommended: if one coil fails, all tje others are the same age and may not be far behind. - Nick at Pelican Parts  
nycbr Comments: The seal on my car is seeping oil but the sensor seems fine and dry. Can I replace the seal without removing the valve cover?
April 29, 2014
  Followup from the Pelican Staff: Eccentric shaft sensor seal? Yes. - Nick at Pelican Parts  
esprit_jap Comments: Hi nick. I just lubricated it and yes it worked!

I succesfully changed the eccentric shaft sensor and valve cover gasket overhaul. However my car is still not starting. It cranks but doesnt fire up. 5 seconds of cranking and my dashboard flickers and the battery cuts out.

My battery is still OEM and my car is a 2006 330i
I am suspecting a fuel pump because i cant hear the pump priming on ignition. Fyi i have no check control codes or warning from idrive.

I really appreciate the input. Thanks!
February 23, 2014
  Followup from the Pelican Staff: If the battery cuts out, you lose voltage. I would test the starting system. Load test the battery and voltage drop the battery cables. - Nick at Pelican Parts  
esprit_jap Comments: Hi there. I cant seem to push in the seal for the eccentric shaft sensor. I tried the socket trick as well but no luck.
February 20, 2014
  Followup from the Pelican Staff: Have you tried lubricating the seal with clean engine oil? - Nick at Pelican Parts  

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