Parts Catalog Accessories Catalog Tech Info Tech Forums
 
Follow Pelican Parts on Facebook Follow Pelican Parts on Twitter Follow Pelican Parts on Instagram Follow Pelican Parts on YouTube Follow Pelican Parts on Pinterest Follow Pelican Parts on Tumblr
  Search our site:    
View Recent Cars  |   Cart  | Project List | Order Status | Help    
 >  >
BMW Crankshaft Sensor Replacement
 
Bookmark and Share

Pelican Technical Article:

BMW Crankshaft Sensor Replacement

Nick Czerula

Time:

3 hours3 hrs

Tab:

$130

Talent:

*****

Tools:

Set of sockets, 5mm Allen bit, 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)
BMW 335d/i/xi Sedan (2007-11)
BMW 335i xDrive Coupe (2009-13)
BMW 335i xDrive Sedan (2009-11)
BMW 335i/is Coupe/Conv (2007-13)
BMW 335xi Coupe (2007-13)

Parts Required:

Crankshaft position sensor, sealing O-ring, crankshaft sensor fastener

Hot Tip:

Work with a cool engine.

Performance Gain:

Car will start and run well.

Complementary Modification:

Repair oil leak from faulty crankshaft sensor sealing O-ring.

The crankshaft position sensor is used to synchronize engine timing for fuel and ignition control. It is located near the starter motor, mounted in the engine block. The sensors read a toothed reluctor wheel mounted to the end of the crankshaft. It then sends a signal to the DME used to identify cylinder location. If this signal is missing, for example from a faulty crankshaft sensor, then engine will not start. You can consider the signal from the crankshaft sensor the RPM signal for the DME.

In this article, I'll go over the steps involved with replacing the crankshaft position sensor. You can access the sensor from below vehicle, working on left side. The photos in this article show the starter motor removed from vehicle for clarity, you do not have to remove it to replace crankshaft sensor.

For all-wheel drive models, remove the intake manifold to access the sensor, access from below is difficult. With the intake manifold removed, you will have clear access to the sensor.

Jack up the front of your vehicle. See our tech article on jacking up your vehicle.

Remove engine plastic splash shield. See our tech article on engine splash shields removing.

Working below starter motor at left side of engine, disconnect crankshaft sensor electrical connector.
Figure 1

Working below starter motor at left side of engine, disconnect crankshaft sensor electrical connector. (green arrow)

Next remove crankshaft sensor E8 mounting fastener.
Figure 2

Next remove crankshaft sensor E8 mounting fastener. (green arrow) There is not a lot of room, so I use an extension with a swivel attached to the E8 socket on my 1/4 drive ratchet. Once fastener is removed, throw it away. It has to be replaced.

Once fastener is removed, pull crankshaft out of engine block.
Figure 3

Once fastener is removed, pull crankshaft out of engine block. Be sure sealing O-ring comes out with sensor. If it stays in the block, retrieve it with a small pick. If sensor gives you trouble coming out, gently lever between sensor retaining bracket and engine block. Be very careful not to damage engine block. Install new sensor and sealing O-ring. Torque sensor to engine block 8Nm (6 ft-lb). Reconnect electrical connector and install engine splash shield. Start vehicle and allow it to idle for about 1 minute. Check that crankshaft sensor area is free of oil leaks. If your check engine was on, now is the time to clear any fault codes and you are done.

Bookmark and Share
Comments and Suggestions:
Brad Comments: 2006 BMW 320i e90 N46 Japanese version. On a cold engine start, have been having a rough idle / rattle when in Drive or Reverse until I increase rpm; smooth when in neutral or park. My research indicates that this should be caused by a bad alternator pulley. Yesterday, the yellow engine symbol began flashing for approximately 10 seconds then went away. The idle is now slightly rough in any transmission position. Wondering if it could be both the pulley and the crankshaft sensor? Any ideas?
November 10, 2016
  Followup from the Pelican Staff: If the check engine light is flashing, that indicates a misfire. The rattle could be a timing component issue. Check the timing chain for slack. - Nick at Pelican Parts  
Mark from CT Comments: 2008 328xi - I'm getting a 518E error - signal fault engine speed from engine control - caused DSC and 4x4 to error out and intermittent stalling. I'm thinking crankshaft sensor - thoughts?
November 2, 2016
  Followup from the Pelican Staff: That fault is for the data signal delivering engine speed. Check if one or more control modules have communication fault codes. - Nick at Pelican Parts  
Manams Comments: Thanks Nick,does that mean after changing the cranck sensor I must reset or reprogramme something?and if mechanical timing is off how do I fix that?And something I forgot to mention on my comment earlier is the problem began with the starter motor which was dead,the starter was not crancking,then I fixed the starter and it started crancking but not starting,that's when I thought of changing the cranck sensor after reading some comments here on the forum
October 18, 2016
  Followup from the Pelican Staff: Mechanical timing would be an issue with the components that keep the camshaft and crankshaft timed, the timing chain, guides, tensioner. - Nick at Pelican Parts  
Manams Comments: Hi I have a 2006 E90 323i.I have changed the cranckshaft sensor but the car still don't want to start,it keeps on crancking.There is spark,there is fuel pressure....no fault codes.What could be the cause?
Thanks
October 17, 2016
  Followup from the Pelican Staff: mechanical timing could be off. Confirm there is compression. - Nick at Pelican Parts  
veneno12 Comments: I replace the crank position sensor on my 2008 335xi and is still acting the same. what could i have done wrong?
October 14, 2016
  Followup from the Pelican Staff: It may not have needed the sensor to fix your problem. What are you trying to repair? - Nick at Pelican Parts  
Rudy Comments: Hey Nick. Replace crank sensor on 2008 e90. Car starts up and is running normal, but code p0335 keeps reappearing, only code?

thanks
September 25, 2016
  Followup from the Pelican Staff: That code is for the sensor circuit, not necessarily the signal. You may have a a shorted wire or bad connection at the sensor. Best bet is to test the signal to the DME, then each wire from the DME to sensor, check for ground, positive vilt supply and reference volts. - Nick at Pelican Parts  
Kcroft205 Comments: I just replaced my crank case valve hose, spark plugs, cores, serpentine belt, and my car is stilll squealing. Should I now replace the crankshaft sensor to see if that's the problem
September 21, 2016
  Followup from the Pelican Staff: Where is the squealing coming from? I would try to isolate components or areas. Remove the belt, run the engine for three seconds, is squeak there? - Nick at Pelican Parts  
jonjon Comments: On a BMW 2008 135i, is it easier to change the crankshaft position sensor from the undercarriage of vehicle?
September 21, 2016
  Followup from the Pelican Staff: Yes. 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
 
jus josef Comments: Hey Nick! I changed the starter on a 2007 530i. The crankshaft sensor harness tip broke.I went to the dealer and got a new one and used the tips from the old one. The car wants to start but a "transmission gearbox" comes on. I think i put the wires in the wrong order. :-
September 19, 2016
  Followup from the Pelican Staff: Check if the wire colors match from the photo in figure 1:

http://www.pelicanparts.com/techarticles/BMW-E60/105-FUEL-6_Cylinder_Crankshaft_Sensor_Replacement/105-FUEL-6_Cylinder_Crankshaft_Sensor_Replacement.htm - Nick at Pelican Parts
 
jim Comments: i am experiencing long crank follow by dsc,brake,check engine light and faulty transmission warning with my e90.could it be the crankshaft sensor?
September 6, 2016
  Followup from the Pelican Staff: Very possible. 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  
Luis Pagaza Comments: I got a p0335 code in my 325i e90, i already changed it, but it still no starting, now I dont have fuel pump works well but there is no signal and send me a p0458 code, what could ot be???
July 31, 2016
  Followup from the Pelican Staff: p0458 will not cause a not start.
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. Once you figure out what is missing, it will be easier to diagnose.
- Nick at Pelican Parts
 
george Comments: hello, good afternoon ! i have a problem with 2006 525xi with a n52 engine, the car cranks but no start, it has no codes just one for the radiator blinds, it has fuel pressure at the fuel rail and i removed the the fuel rail with the injectors to see if the injectors are working and they are working too, checked spark on all 6 cylinders and its working good, removed the valve cover to check the timing and its ok , removed both vanos for cleaning and replaces both o'rings , the same for the camshaft sensors too, the last thing that i have to check is the compression on all cylinders. what do you think ? what is your opinion ? what can it be ?
July 15, 2016
  Followup from the Pelican Staff: If you have spark and fuel, you must be lacking compression. Check engine compression. aSSUMING YOU tested fuel quality and it is OK. - Nick at Pelican Parts  
Jarocho Comments: My 2009 bmw 328i have code 2AB6 and dont have fuel inyector signal
June 29, 2016
  Followup from the Pelican Staff: COuld be an issue with the DME. I would check power and ground tot he DME, as well as the data lines and the crank sensor signal. - Nick at Pelican Parts  
nabz Comments: My bmw e90 320d 2008 facelift is not starting cranking but not starting it just stalled on the high way while going 210kms i smelled something burning when it stalled checked the turbo and actuator its fine checked ecu its also fine checked fual its pumping fine theres spark in all 4 plugs checked all the sensors besides the crankshaft sensor all seem to be fine just cant seem to find out why this car is refusing to start plss help
June 16, 2016
  Followup from the Pelican Staff: Check engine compression, the timing may be faulty. - Nick at Pelican Parts  
nico Comments: my 2006 e90 320 starts and runs fine until it warms up then looses injector pulse in no4 cylinder only, turn off and wait 15 mins fine again then cuts pulse again, any thoughts
May 31, 2016
  Followup from the Pelican Staff: There is likely a misfire, where the DME shuts the injector off to protect the catalyst. Check spark and compression on the cylinder to locate the cause of the misfire. - Nick at Pelican Parts  
E90bimmer Comments: What could cause intermittent dying of my 2010 328i while driving at different speeds. Won't restart for a min then will start like nothing happened. No check engine light either.
May 5, 2016
  Followup from the Pelican Staff: Many things, anything from the DME to 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. Once you figure out what is missing, it will be easier to diagnose. - Nick at Pelican Parts  
Pyitr039 Comments: I have a 2010 328i x drive and I have a prolonged start sometimes. Occasionally a rough idle at startup or while at a light. And recently started to die while driving sometimes on highways and others while in traffic or even taking off from a light. No check engine light either
May 4, 2016
  Followup from the Pelican Staff: Sounds like an engine misfire. I would check spark, fuel and compression on all cylinders. - Nick at Pelican Parts  
Gordon Comments: Hi I have a BMW 335d e90, car was slightly low on fuel so decided to go to the filling station to fill it up but half way there it's stalls.I thought my gauge must be wrong and I've ran dry so I got the works van and filled a 5 gallon drum, filled the car but now every time I give it full throttle the engine just stalls. No Idea what's wrong can someone help! I've also changed the fuel filter but still no luck!
April 17, 2016
  Followup from the Pelican Staff: Could be an issue with the fuel pump. I would perform a fuel delivery system test. Check fuel pressure, volume and quality.
- Nick at Pelican Parts
 
Knightevo Comments: Hi I have a e90 325i 2005. P0016 crankshaft inlet
Misfiring on idle, so i changed both vanos soleniods and the cam sensor. it ran smoother than it ever has, but then after 20mins it started to idle really rough! fine on accelaration but idling is really rough

https://www.dropbox.com/s/a1orle1j4u0fifc/20160411_192231.jpg?dl=0

Any help would be great, thanks
April 11, 2016
  Followup from the Pelican Staff: Is the check engine still light on with the same code? Sounds like an engine misfire. I would check spark, fuel and compression on all cylinders. - Nick at Pelican Parts  
zino77 Comments: but the car after start driving normal and accelerate perfect !!!
March 22, 2016
  Followup from the Pelican Staff: Got it, thanks. - Nick at Pelican Parts  
zino77 Comments: 2007 bmw 328i it has long cranks starts about 5 sec more plus yellow light DBC , yellow light DSC, yellow light break and yellow light engine service soon . codes print out from bmw diagnose 2a94,2e83,2e85,581e,5e67and 5e1a!!! i change my self new battery and i change crankshaft sensor but i didn't change crankshaft sensor bolt ...and still the same problem long crank start and a lot of yellow lights on dashboard ..please help
March 22, 2016
  Followup from the Pelican Staff: You have many codes for different components, for example for the crank sensor and the coolant pump.

Start with the crank sensor, once that is fixed, look into the coolant pump and so on.

MOnitor the crankshaft signal to the DME when the hard start issue is present. There may be a wiring issue preventing it from getting to the DME. - Nick at Pelican Parts
 
cantare Comments: 07 e90 335i N54 143K miles will stumble momentarily, sometimes also setting DSC/DBC/Startoff Ass. inactive + reduced power warnings. Restarting engine 2x clears this & car drives normally for a period, then recurrence. Codes 2A94 CPS, 3100 limp mode and 5E1A DSC are present each time-CPS was reporting an engine speed of zero rpm! The fault seems less likely to happen on colder days 60F. Anything else I should consider besides replacing the CPS?
March 7, 2016
  Followup from the Pelican Staff: I would assume the sensor is at fault. best bet is to monitor the signal to the DME when the fault is present. - Nick at Pelican Parts  
DUSTIN Comments: 2008 BMW 528I 3.0L LAST 8 OF VIN 8CT17968. WE HAVE THE FOLLOWING CODES:
DME - 2A94 CRANCKSHAFT SENSOR SIGNAL
EGS - 51A6 ENGINE SIGNAL
CODES CAN BE CLEARED AND INSTANTLY RETURN UPON START UP. SCAN TOOL DOES SHOW RPM SIGNAL.TRANSMISSION GOES INTO LIMP MODE. ANY SUGGESTIONS? THANK YOU
February 24, 2016
  Followup from the Pelican Staff: I would test the crankshaft signal to the DME while monitoring the data stream of the DME. Does RPM remain constant with the signal. - Nick at Pelican Parts  
DS Comments: To Pelican Staff,
is the camshaft position sensor same as the crankshaft position sensor? in other word, is it possible that i could buy a camshaft position sensor and install it to the crankshaft position sensor slot? or i could buy a crankshaft position sensor and install it to the camshaft position sensor slot. my shop guy is telling me that i could buy either sensor and install it to any of the 3 sensor slot. the camshaft sensor and the crankshaft sensor are the same size and same material and work the same. it just a sensor. i am confused. but from the pictures, they do look the same. Thanks!
February 19, 2016
  Followup from the Pelican Staff: No, they are not the same part.

Give our parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 
mrcheeks Comments: I have a 2008 bmw328xi it cut off on mi I replace the crankshaft sensor and now its giving me a hard start the check engine light is on the code I am getting is p0335
January 27, 2016
  Followup from the Pelican Staff: Could be an issue with the sensor wiring.
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
 
Saeed Comments: Hi, i have a BMW X3 2008 3.0si N52 Engine which requires the crankshaft sensor to be replaced. Mechanic says needs to remove half the engine to replace this. Doesn't sound right to me, do you have a video showing where the crankshaft sensor is on my car? or any idea how many hour work for this project..
January 25, 2016
  Followup from the Pelican Staff: It is quite involved. Time depends on your experience. 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
 
Crow Comments: I changed the CPS today on my 2006 325i and did it from the underside. I removed the undertray and initially was unable to access the CPS, but found that if I removed a metal shield on the chassis side of the opening beside the engine, it provided much more room to reach up and access the CPS. I was able to complete the task, but be warned that performing the task from the underside has to be performed totally blind and by feel only.
January 9, 2016
  Followup from the Pelican Staff: Thanks for the additional info and feedback. We appreciate it.
- Nick at Pelican Parts
 
E90328XI Comments: I have a 2008 328xi which is listed in the models for this, but I couldn't see the CPS from underneath the car due to the xDrive components blocking access. It was disappointing because jacking up the car and taking off the engine splash guard was useless with regards to accessing the CPS.
The manuals like Haynes and Urge say remove Intake Manifold, however, I will try removing the cabin filter, mounting panel and unbolt the power steering pump as suggested in the Jan 3 2016 comment.
January 5, 2016
  Followup from the Pelican Staff: Thanks for the additional info. We appreciate it. I will have the article updated.
- Nick at Pelican Parts
 
MHGUY Comments: Update to my issue, I replaced the crankshaft position sensor. I couldn't access it from the bottom but if you take of the cabin filter and cowling under it as well as the air filter housing and connecting hose and unbolt power steering resivor and move it to the front it gives you access by reaching behind the intake manifold and you can also look down and see it from the top. So far the car starts faster and no fault codes! I'd say it took me 3hrs but that was including trying to get to it from the bottom
January 3, 2016
  Followup from the Pelican Staff: Thanks for the follow up and sharing your experience
- Nick at Pelican Parts
 
Tkami07 Comments: Hello I have an automatic 2007 335i that's stock with 167k miles. When the car has been sitting for a while and is cool it'll start however with two long cranks, sometimes it'll start faster/normal. The issue is once it's been running for a little bit of time and warms up, it refuses to start, doesn't even crank much until a significant amount of time is allocated for it to cool downat least 4 hours however it will start if it's being jump started when hot. I've changed the starter, batteryregistered and charges fine plugs, earthground cable. Any advice would be appreciated. Thank you
December 28, 2015
  Followup from the Pelican Staff: Could be an issue with the fuel pump. I would perform a fuel delivery system test. Check fuel pressure, volume and quality.
- Nick at Pelican Parts
 
Trish Comments: Hi my 2010 320i is giving me a headache. I have now replaced the battery three times this year alone. Right now the car takes long to start and then switches off after another 30 seconds. What can be the issue
December 19, 2015
  Followup from the Pelican Staff: You may have a parasitic draw. You'll want to monitor the draw on the battery when the vehicle is asleep. Here is a list of the specifications: http://autotechdiagnostics.com /?p=185
Once you confirm there is a draw. You will have to isolate the circuit with the draw. Then determine which components on that circuit is causing the draw You can isolate by removing fuses. be sure to have all the latches on the doors and hood closed (pin switches) so the vehicle will sleep during testing. If it wakes up, you will have to wait until it goes to sleep again. - Nick at Pelican Parts
 
MHGUY Comments: about every 2 weeks or so my car seems to take a little bit longer crank to start and when I run GT1 I get fault codes under the DME, DSC and EGS module

2A98 DME; crankshaft- inlet camshaft first time for code
2A94 DME; Crankshaft sensor p0335
581E EGS; Signal error, engine speed
5E1A DSC; Engine management interface

the car doesn't go into limp mode and when the car and GT1 are running it shows that the fault is not currently present could this all be the crankshaft sensor slowly going out?
December 7, 2015
  Followup from the Pelican Staff: Yes, I would assume so. - Nick at Pelican Parts  
Tommy Comments: Hey there. I have an '06 E90 330i and I've been trying to track down a mysterious problem. I had a slight misfire while cruising on the highway, accompanied by a stumbling idle- 2A99 and 2A82 fault codes stored. I cleaned and switched VANOS solenoids, and it did not help. In fact, I was actually coasting to a stop light the other day and my engine just shut off without a sound! I tried to start it up but it was misfiring and choking- sounded like the timing was off. 2A99 reappeared and my local Indy had to regap plug in cylinder 6, which had completely closed up due to pre-detonation. Car is in otherwise great shape. Pls help!
December 5, 2015
  Followup from the Pelican Staff: If the plug was melted from detonating, you have a major problem. I would start by checking mechanical engine timing and compression. - Nick at Pelican Parts  
Runbom Comments: Hi, it's me again :.
Now I have searched the car for fault codes. It shows 'P1129'.
When I sesarch for the codes meaning for a BMW it says "Downstream Heated Oxygen Sensors HO2s swapped from bank to bank".
It don't think the connectors are switched? Because of the increasing of car jerking and power loss. More so on low RPM second and third gear.
Is it definitely a problem with this sensor you think? Or could it be something else still? I get worried because of the pucture warning etc. That doesn't feel like an oxygen sensor problem.
Many thanks!
November 12, 2015
  Followup from the Pelican Staff: If you have a fault code indicating swapped o2s, maybe that is your issue. However, if the problem popped up and there was no work performed on the oxygen sensors, I find that to be unlikely. - Nick at Pelican Parts  
sam Comments: HELP!! i broke my crankshaft sensor bolt in the block how i get it out?2007 328xi 4 door
November 9, 2015
  Followup from the Pelican Staff: You will have to remove the starter for working space. Then drill the bolt out and use an extractor to remove it. - Nick at Pelican Parts  
Runbom Comments: I have had a supposed sensor problem on my 2006 318i for a couple of weeks now.
It started out at speeds approx 60+ mph, after about 15-20 minutes of driving.The DSC Warning light starts to blink and the car looses power and starts to jerk. eventually it only alows me to drive at 55 mph.

Recently it also started to act strange in slower speeds and goes on and off with the throttle/power/DSC light. But it's still drivable allthou people must think I'm a shitty driver
Eventually the puncture warning came up. After a reset of the tyre preassure in the car the puncture warning stays absent for a couple of days. But the DSC blinkin'/jerking/loss of power remains. And it's getting worse.

The tyre preassures are good on all four wheels.

Could it be the crankshaft sensor? Or is it a wheel speed sensor? It shouldn't be something with the wheel alignments that causes the warning to start?
November 3, 2015
  Followup from the Pelican Staff: I would guess at something more like a faulty throttle housing. 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
 
Thembi Comments: E90 320i just switched off while I was driving and more than 5 warning signs on the cluster appeared. After two day I tried to start the car and it started but I haven't driven it yet cause I don't know why it switched itself off that day. What could be the problem?
November 1, 2015
  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 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
 
fred Comments: I have e90 325i 2006 sometime when i start the car feels like the battery is weak to turn the engine but then start very fast .... some time engine light comes on and the code tells me that crank shaft sensor and i clear the code and goes away for months and i still getting that feeling the car might not start seems like low battery but is Not the case, is that sensor causing that to turn the engine slowly.
October 27, 2015
  Followup from the Pelican Staff: It could be related to a faulty battery. I would have it tested first. - Nick at Pelican Parts  
nthaby Comments: I have a BMW 330i e90 2005, when I drive it for a longer distance it start to cut and completely stops especially in hot weather and restart again after 10min or so.What might be the problem? Some mechanics says crankshaft sensor or catalyst convertors or fuel pump.
September 18, 2015
  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 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
 
uchman Comments: sir pls my BMW M42 engine 1998 convertable is given me a lot of headache. It started by jecking when am on motion then it finally stopped. After changing my injector it started and will always off after3 to 10minutes later sometimes it will start again sometimes it will not start. But i noticed that anytime its not starting that the fuel pump will not work and if i test to pump socket it has no current on it. After sometime again it will pump. What might be wrong?
September 6, 2015
  Followup from the Pelican Staff: Could be a faulty dme. Check if the fuel pump relay is being commanded on when the problem is present. - Nick at Pelican Parts  
TimJ Comments: Hi, i have a BMW X3 2008 3.0si N52 Engine which requires the crankshaft sensor to be replaced. Mechanic says needs to remove half the engine to replace this. Doesn't sound right to me, do you have a video showing where the crankshaft sensor is on my car?
August 24, 2015
  Followup from the Pelican Staff: No video for your model. The sensor is located above the starter below the intake manifold. - Nick at Pelican Parts  
theodow Comments: Hi Nick.
I own a BMW e90 with engine code n43b16A 1,6L Model year 2009. My car most of the times with hot or cold engine will start after 3-6 seconds of cranking. Also the idle as soon as it starts is a bit rough. Sometimes RPM is from 400-650, the whole car is shaking and there is no response when I press the gas!! The thing is that it doesn't throw any error codes..
The BMW Dealer checked fuel pressure volume & quality was OK, replaced injectors, spark plugs, coils, fuel filter low pressure and HPFP. The car still has the same symptoms. They told me that they cannot find anything wrong and that it is not such a big deal!! Anyway it is so annoying..Do you have any ideas?? Could it be the crankshaft sensor?
July 21, 2015
  Followup from the Pelican Staff: if fuel and spark are OK, the only piece left is compression. I would start there. Check compression on all cylinders. You may find it low, leading you to a timing issue. - Nick at Pelican Parts  
dallas Comments: I have a 2006 bmw 325i 3.0 liter car lost all oil the night unknowingly the night before. went to start it the next day and it said low oil pressure and low oil then shut itself off.. now the oil pan is fixed however it's not getting spark. I've tried replacing the camshaft position sensor as that is what code I pulled from the diagnostic reader but still have no luck. would the crank shift position sensor be the cause of this? I have a hard time believing multiple sensors went bad after this happening. all fuses are good also, thanks in advance
July 3, 2015
  Followup from the Pelican Staff: Have you checked for fault codes? There may be one stored that needs to be reset. If it stalled from low oil, I would confirm the oil level is correct and the level sensor is reading correctly. - Nick at Pelican Parts  
nelalas Comments: Hi Nick,
I have 2007 328I N51 with no a crank no start. I sprayed carb cleaner into a vacuum port and it started running until i stop spraying. Any suggestions on where to start? By the the fuel pump is new and working...
May 26, 2015
  Followup from the Pelican Staff: Does sound like fuel is your issue. But first test the remaining items to be sure. 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  
Brewder Comments: Is this the same guide for the 2007 328xi Coupe E92?
May 24, 2015
  Followup from the Pelican Staff: The sensor is in the same place, but access is tighter due to the all-wheel drive system. - Nick at Pelican Parts  
snowpunk84 Comments: Last night I replaced my crankshaft position sensor on 2007 328xi with N51 engine. It was nearly impossible to access it from the bottom, removing the cabin air filter and cowl were the way to go, at least on my model. I left the wiring connected until I could get the sensor to come out of the block. Afterward, SES and "car on a lift" symbol came back on with the same symptoms. I've heard that a weak battery/alternator going bad can cause similar symptoms. Any suggestions?
May 14, 2015
  Followup from the Pelican Staff: A weak battery can cause issues, but usually not a MIL. 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
 
Aj Comments: Do i need to lube up the new o-ring with engine oil before i place it in?
May 6, 2015
  Followup from the Pelican Staff: Clean engine oil can help it go in easier. - Nick at Pelican Parts  
rudebwoy Comments: Hi Pelican, I own a 2007 525i bmw, with an n52 engine, on the wire harness on the intake manifold there are 2 wires that are not connected to anything, can you tell me what they are for?
April 27, 2015
  Followup from the Pelican Staff: Can you share a photo of the area and the connectors? - Nick at Pelican Parts  
Michael Comments: Would i need to remove the intake manifold if i were to replace the crank sensor from the top or is there a way around it from top of the vehicle?
April 26, 2015
  Followup from the Pelican Staff: You can try from the bottom, through the wheel well maybe. But it is a tight fit. - Nick at Pelican Parts  
Jimmy Comments: I have an e90 323i and we changed the crankshaft position sensor but I'm still getting p1727 and p0335. Checked the charge on the battery and its good; I'm stumped... Any advice?
April 21, 2015
  Followup from the Pelican Staff: P0335 is crankshaft sensor circuit. The wiring may be faulty. Check that the signal from the sensor is getting to the DME.

P1727 doe snot show up in my dtc chart. - Nick at Pelican Parts
 
Joe Comments: How can i unplug the wires from the sensor? I am working from beneath the car working just by feel and i can't seem to feel if theres a button or clip to remove the wires. Do i just pull it out? Or is there a clip that i need to lift before i can pull the plug out? I wouldn't want to damage the wires.
April 17, 2015
  Followup from the Pelican Staff: It pulls out, retained by a tab on the sensor. usually you can pull it straight out. - Nick at Pelican Parts  
Mark Comments: Where is the sensor located at if im changing it from underneath the car? The passenger side? I can't seem to find it.
April 12, 2015
  Followup from the Pelican Staff: This text in the article mentions the location:

In this article, I'll go over the steps involved with replacing the crankshaft position sensor. You can access sensor from below vehicle, working on left side. The photos in this article show the starter motor removed from vehicle for clarity, you do not have to remove it to replace crankshaft sensor. - Nick at Pelican Parts
 
Rewboo Comments: Mi bmw e90 d is havin. Probs wiv starting somtimes starts on push button an then it won't but then can go bak to it somtimes an it wud start even Thoe everytime it wud bump I've ad the starter motor battary and a unit called cas unit an the prob still Remains ad yet another diagnostic dun an gettin faluts codes crankshaft sensor intermittent 3e91 glow plugs 4 intermittent 4242 an so on 4a07 alternator communication 4293 -16 intermittent faluts ecu short circuit immobliser 9d11 red random code incorrect ews 4a63 ews manipulkering incorrect apart from everything on this car can u giv us any help
April 9, 2015
  Followup from the Pelican Staff: What year is the vehicle? I don't have any experience with the early models, as we didn't have them in the US. - Nick at Pelican Parts  
Jhay Comments: Thanks for the tip. I will update if the battery change will fix the problem if not then i guess it should be the crank sensor that needs to be replaced?
March 31, 2015
  Followup from the Pelican Staff: Not necessarily. You should check what is missing from the scenario.
Check spark, fuel injector pulse and fuel pressure, volume, quality and engine compression. Once you figure out what is missing, it will be easier to diagnose. - Nick at Pelican Parts
 
Jhay Comments: My 2006 325i e90 just got scanned at a shop because it was having a long crank before it started, engine sounds weak after starting and DSC, DBC, flat tire monitor malfunction and start-off assist inactive lights came on. Dealer said it was a bad crank sensor and weak battery that caused it. Wanted to see if you guys think that is a right reason or is it just another stealership wild guess before i actually try to get those things fixed. Thanks!
March 31, 2015
  Followup from the Pelican Staff: A weak battery could definitely cause your issues. I would replace it and see if the problem goes away. It may be your only issue. - Nick at Pelican Parts  
jerry Comments: i have 2007 bmw 328i car set outside for 2months went to start it backfire threw the intake could crankshaft position sensor be the cause already replaced camshaft sensor help please!
March 9, 2015
  Followup from the Pelican Staff: Does it start? Are there any fault codes? - Nick at Pelican Parts  
rusey Comments: Finally changed mine on 2008 E90 328i. It was a pain. I came from bottom to remove and tightened it up from top because of the angle. My bolt was a E10 an not a E8.
February 20, 2015
  Followup from the Pelican Staff: Thanks for the additional info and feedback. We appreciate it.
- Nick at Pelican Parts
 
e92335i Comments: When installing this sensor on an n54 335i is it better to disconnect battery?
February 18, 2015
  Followup from the Pelican Staff: I have done it both ways. With it disconnected reduces the chances of setting a fault code. - Nick at Pelican Parts  
kickit Comments: Just did this. Coming in from the top is much better...you can at least see some. Dirt accumulates in that area and you will want to clean.

Helps if you have about 18 inches of extensions to chain together, u-joint and magnetic telescope tool. Remove the cabin air filter, the cowl, and optionally the air box. Leave on the connector as it is much easier to remove after taking out the sensor. But don't yank on wires.
January 30, 2015
  Followup from the Pelican Staff: Thanks for sharing your installation process and experience. These type of comments add so much to the Pelican tech community.
- Nick at Pelican Parts
 
paddy Comments: do I need to remove inlet manifold to and starter to access crankshaft sensor on e90 320d 2007 or can it be done from underneath?
December 20, 2014
  Followup from the Pelican Staff: I don't think so. You should be able to sneak it out. It is a tight work space. Use a ball end Allen socket. - Nick at Pelican Parts  
Dan Comments: Hi mate. I have problem to start my car bmw e92 2007 320i. I find only one error code 2A9A. It can be camshaft sensor foult? When i disconetced any other sensors from my car new error codes coming but when this one ist connected or disconnected only one error code. Thanks
December 16, 2014
  Followup from the Pelican Staff: This is probably not part of the no start issue. When your engine doesn’t start you’ll want to check the basics. Check spark, fuel injector pulse and fuel pressure, volume and quality. Once you figure out what is missing, it will be easier to diagnose. - Nick at Pelican Parts  
Mike Comments: Does this procedure applied to 2008 328i convertible/coupe too? I had tried it from the bottom and there is no room at all.
December 9, 2014
  Followup from the Pelican Staff: Yes, it does. It is tight, but do-able. Like most modern cars, a lot of the procedures are in tight spaces. - Nick at Pelican Parts  
Nikolai Comments: Nick, I am a bit confused here. On the article it indicated that it show the starter motor removed from vehicle for clarity, you do not have to remove it to replace crankshaft sensor. Do I need to remove the intake manifold or do I go from the bottom of the car?

December 9, 2014
  Followup from the Pelican Staff: From your questions, it sounded like you were removing the starter and the crank sensor, and asking if the intake had to be removed.

If just replacing the crank sensor, you can sneak it out from below the starter. - Nick at Pelican Parts
 
Glen_Bug Comments: Hi Nick,
Do I need to remove the intake manifold as if replacing starter to get to the crankshaft sensor? 2008 328i
December 6, 2014
  Followup from the Pelican Staff: I would. I have never tried to slide the starter back and out of the way. I doubt there is enough room. - Nick at Pelican Parts  
Matty Comments: The cable to my ckp has a broken connector. Do you have replacement cable
September 12, 2014
  Followup from the Pelican Staff: 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
 
firstimebeemer Comments: I got a BMW 2A94 code Crankshaft sensor error on my 2008 328xi. Car mostly ran fine, but was a little limp and the RPM was a little jerky.

When I cleared the code 4 days ago, the car ran perfectly. However, yesterday I got the same 2A94 code again, and it went again into a little limp mode mostly fine.

Does this mean that I need to replace my crankshaft position sensor or perhaps some wire is loose?

Also, people suggested in the BMW forum to try to access the crankshaft sensor from the top on the XI as from the bottom it is very hard. Do I need to take the intake manifold off to access it from the top?

Thanks!
August 21, 2014
  Followup from the Pelican Staff: I would suspect the crankshaft sensor. It's best to test the signal to the DME using a DVOM or a labscope to be sure.

It is tight, but you can get tot he sensor from the bottom. - Nick at Pelican Parts
 
sico Comments: my bmw e90 is not starting until when left for 10 minute. when it start it steam for like 30 minute and go off again?
July 30, 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.
- Nick at Pelican Parts
 

  Search our site:    

View Cart & CheckOut | Project List | Order Status |  Help    

 

[Home] [Customer Service] [Shopping Cart] [Privacy Statement]
 [Contact Us] [About Us] [Shipping] [Map to our Location] [Careers]

Copyright © Pelican Parts Inc.

Page last updated: Fri 12/9/2016 02:22:24 AM