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Pelican Technical Article:

Cooling Fan Replacement

Nick Czerula

Time:

3 hours3 hrs

Tab:

$200

Talent:

****

Tools:

Set of sockets, wrenches, screwdrivers, 32mm fan wrench, coolant pump counter-hold tool, T-25 Torx socket, needle-nose pliers

Applicable Models:

BMW 323Ci Coupe/Conv (1999-00)
BMW 323i Sedan/Wagon (1999-00)
BMW 325Ci Coupe/Conv (2001-06)
BMW 325i/xi Sedan/Wagon (2001-06)
BMW 328Ci Coupe (1999-00)
BMW 328i Sedan (1999-00)
BMW 330Ci Coupe/Conv (2001-06)
BMW 330i/xi Sedan (2001-06)

Parts Required:

Cooling fan, viscous clutch, drive belt

Hot Tip:

Work with a cool engine

Performance Gain:

Car will cool down again

Complementary Modification:

Change serpentine belt.

BMW E46 cooling system components include:

  • Radiator and coolant overflow tank
  • Belt driven water pump bolted to the front of the engine block
  • Electric cooling fan attached to rear of radiator - the cooling fan is controlled by the engine control module (ECM) via an output final stage
  • Automatic transmission models: Belt driven fan attached to front of water pump, viscous clutch controls fan speed based on engine temperature and rpms
  • Electrically heated thermostat
  • Automatic transmission cooler (heat exchanger)
  • Heater valve and heater core (for climate control)
  • Coolant level sensor inside expansion tank
  • Coolant temperature sensor at cylinder head
  • Radiator outlet temperature sensor
  • Coolant hose and lines

The engine-cooling fan helps to maintain constant engine temperature, drawing air past the radiator cooling fins which, in turn, cool the engine coolant. BMW E46 models came equipped with two cooling fan configurations.

Automatic transmission models utilize an electric fan mounted on the front of the radiator. The fan final stage is mounted to the fan and is controlled by the engine control module (ECM). An additional belt-driven cooling fan with a viscous clutch is attached to the engine coolant pump. On this fan, the fluid in the viscous clutch is affected by engine compartment temperature, which in turn controls fan speed. 

Manual transmission models come equipped with one multi-speed electric cooling fan mounted to the engine side of the radiator. The fan final stage is mounted to the fan and is controlled by the ECM.

When replacing the engine side-cooling fan, you will want to work with the engine cold. Start by disconnecting the battery negative cable. Disconnecting the negative battery cable will prevent the electric cooling fan from starting while being serviced. The fan could start at any time and personal injury can occur. Don't skip this step.

Keep in mind that when your car was serviced before, parts may have been replaced with different size fasteners used in the replacement. The sizes of the nuts and bolts we give may be different from what you have, so be prepared with different size sockets and wrenches. 

Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. If you're working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste. Recycle parts, packaging and fluids when possible. Do not work on your vehicle if you feel the task is beyond your ability. 

Vehicle models change and evolve, as they grow older, so the vehicle shown in our illustrations may vary slightly from yours. If something seems different, let us know and share your info to help other users. Do you have questions or want to add to the article? Leave a comment below. When leaving a comment, please leave your vehicle information.

Working in trunk, disconnect the battery negative cable and cover the battery terminal so the cable does not accidentally come in contact with disconnected cable. See our Pelican Parts Technical Article on Battery Connections.

If you are looking for more Technical Articles to diagnose or repair cooling issues please visit our E46 page.

Working at the top of the radiator, remove the expansion rivets from the intake air duct (green arrows).
Figure 1

Working at the top of the radiator, remove the expansion rivets from the intake air duct (green arrows).

To remove the rivets, you can use a small flathead screwdriver to pry them up, then using needle-nose pliers, pull the rivet out.
Figure 2

To remove the rivets, you can use a small flathead screwdriver to pry them up, then using needle-nose pliers, pull the rivet out. The expanding portion of the rivet will now come out with the duct. Depending on model year, the vehicle may have 3 or 4 expansion rivets.

Next, remove the intake air duct from the radiator support by lifting it up and out from the intake air housing duct.
Figure 3

Next, remove the intake air duct from the radiator support by lifting it up and out from the intake air housing duct.

Working at the right side of the fan shroud, disconnect the electrical connectors (green arrows).
Figure 4

Working at the right side of the fan shroud, disconnect the electrical connectors (green arrows).

Working at the top corners of the cooling fan shroud, remove the expansion rivet (green arrow) and T25 Torx screw (yellow arrow).
Figure 5

Working at the top corners of the cooling fan shroud, remove the expansion rivet (green arrow) and T25 Torx screw (yellow arrow).

For models with an electric cooling fan on the engine side, you can now lift the shroud with the fan up and out from the engine compartment.
Figure 6

For models with an electric cooling fan on the engine side, you can now lift the shroud with the fan up and out from the engine compartment.

Models with a belt-driven cooling fan, you will leave the shroud in the engine compartment until you unscrew the viscous coupler from the coolant pump.
Figure 7

Models with a belt-driven cooling fan, you will leave the shroud in the engine compartment until you unscrew the viscous coupler from the coolant pump. You will need a 32mm wrench for the viscous coupler hex - quickly rotate it in a clockwise direction (it is reverse threaded).

If you cannot loosen the viscous coupler from the coolant pump, there is a special tool to counter-hold coolant pump, available from Pelican Parts.
Figure 8

If you cannot loosen the viscous coupler from the coolant pump, there is a special tool to counter-hold coolant pump, available from Pelican Parts.

Unscrew the viscous coupler from the coolant pump and remove it from the engine compartment with the fan shroud.
Figure 9

Unscrew the viscous coupler from the coolant pump and remove it from the engine compartment with the fan shroud.

Installing the engine side electric cooling fan is a snap.
Figure 10

In order to separate the viscous coupler from your fan, remove the fasteners Installing the engine side electric cooling fan is a snap. Install the new fan on your shroud and install the fasteners. Once the two are joined, lower the fan into your engine compartment and slide the cooling fan unto the mounts on the radiator and connect the electrical connectors at right side of the cooling fan. Install the expanding rivet and Torx screw. Install the intake air duct the same way it was removed, reconnect the battery negative cable and check the operation of cooling fan. Assembling the viscous coupler to the fan blade - Assemble the viscous coupler to your fan and torque the fasteners to factory specs. To install the E46 belt-driven cooling fan, lower the fan shroud and fan into the engine compartment together. Slide the shroud into the mounting tabs on radiator. Screw the cooling fan onto the coolant pump in a clockwise direction (left-handed thread). Once hand tight, use a 32mm wrench and torque the viscous clutch to specs. Connect the electrical connectors at right side of the cooling fan. Install the expanding rivet and fastener. Next install the intake air duct and check the operation of the cooling fan. If your E46 model has the electric cooling fan mounted at the front of your radiator you will have to remove the front bumper in order to replace the cooling fan. See our Pelican Parts Technical Article on Removing Your Front Bumper. After the front bumper is removed, you will start by working in the trunk. Disconnect your battery negative cable and cover your battery terminal so the cable does not accidentally come in contact with the disconnected cable. See our Pelican Parts Technical Article on Battery Connections.

Working in engine compartment, disconnect the cooling fan electrical connector.
Figure 11

Working in engine compartment, disconnect the cooling fan electrical connector.

When disconnecting the auxiliary fan electrical connector, remove the connector from the mount and squeeze the release tabs on the side to separate.
Figure 12

When disconnecting the auxiliary fan electrical connector, remove the connector from the mount and squeeze the release tabs on the side to separate.

After you have removed the front bumper, remove the 4 plastic screws using a Phillips screwdriver, and then remove the fan cover in downward direction.
Figure 13

After you have removed the front bumper, remove the 4 plastic screws using a Phillips screwdriver, and then remove the fan cover in downward direction. You may have to wiggle the cover back and forth to get it to clear the radiator support.

Remove the four fan mounting nuts and remove the fan from the radiator.
Figure 14

Remove the four fan mounting nuts and remove the fan from the radiator.

When removing the fan from your radiator support, feed the harness through the hole at the top right corner.
Figure 15

When removing the fan from your radiator support, feed the harness through the hole at the top right corner. Work slowly so your harness does not snag.

When installing, feed the electrical connector through the opening in the radiator support.
Figure 16

When installing, feed the electrical connector through the opening in the radiator support.

Lastly place the radiator fan on the support and attach it using the four previously removed nuts. Next, install the fan cover using the previously removed expanding rivets. Install the front bumper in reverse order of installation. Finally reconnect the battery negative cable and check the operation of the cooling fan.

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Comments and Suggestions:
mohammed Comments: I have E46 my fan is Making serious noise when I check I think one of the bolt is loose but some still told me that the fan is still faulty.
April 13, 2017
  Followup from the Pelican Staff: Best bet, confirm all the fasteners are tight. If it stil makes noise, it is probably faulty. 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
 
Unique Pieces Comments: I have a 2003 bmw 325xi. When I bought the car the ac never worked, thinking it was low on freon. Well it got rather hot this past summer so I thought I'd get checked out. Had the system recharged and it was great same day had to drive to the airport to pick up my wife, early and stopped for a soda. Well that's when it blew, extreme over heating, exspandsion tank cracked.
Well this is my story!
Moving on,after the "blow up" I replace the tank, chacked for any other problems which all seemed to be okay. Did a few test runs seemed to be fine. Well the first stop and go drive into town major overheat. First time I thought the ac was maybe the cause, but I didn't have it on.
The problem that I have is that you have nice picture but little information on the parts and what should voltage be /or not, and where test points seem to be vague. Sorry I got a little ahead of myself. I have the auxiliary fan, in front of the radiator. It does not run,turns free but does not run at any time.
If you could give me a more in depth information on this system I would greatly appreciate it.
Thank you
November 7, 2016
  Followup from the Pelican Staff: The aux fan runs with either the A/C or when the DME requests it due to engine temp. Easiest way to test, does it come on with A/C? If not, command it on with a scan tool. If it doesn't come on, monitor the signal (small wire) to fan, I recall the DME grounds this wire to activate fan. Confirm wiring using a wiring diagram for your vehicle. - Nick at Pelican Parts  
leo Comments: I have an e46 bmw 318 ti 2002,,.the ac works ,,the blower has mind of its own coming on an off even when ignition is off it is draining batterry don't no where to begin,blower going up and down in different levels like wind,when ignition on works properly,,can you help me,
September 12, 2016
  Followup from the Pelican Staff: Sounds like a faulty final stage unit. 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
 
Bm99 Comments: Is this the correct electrical cooling fan for e45 99 BMW 323i sedan ? Is this part OEM? What's the part number? Thanks
August 16, 2016
  Followup from the Pelican Staff: The article is for E46 BMWs. if that is your model, yes.

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
 
Mark Comments: Is there a part number for the screw that holds on the fan shroud?
August 11, 2016
  Followup from the Pelican Staff: Yes, but your vehicle info is needed to check. For an instant response, 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
 
Jomiah Bernard Comments: Thanks Nick at Pelican Parts. Do really appricate your time and effort in dealing with all these thousands of questions each day. I took my 325i for a long drive maybe about 2 hrs. The electric fan does work fine. I think that I was a little to scared to put it to the test. Now I realized that its ok. Thanks brother keep up thegood work. GOD bless you.
Do you sell oem maf sensor for an 02 325i? And how much.
July 29, 2016
  Followup from the Pelican Staff: Any time, we love helping!

MAFs range in price. See them here:

http://www.pelicanparts.com/cgi-bin/supertech/catalog.cgi?action=frameset&return-url=/cgi-bin/supertech/catalog.cgi%3Faction%3Dframeback%26page%3D1043&catalog-url=http%3A%2F%2Fwww.pelicanparts.com%2Fcatalog%2FSuperCat%2F0218%2FBMW_0218_VENTAC_pg4.htm %3Futm_source%3DSuperTech%23item13 - Nick at Pelican Parts
 
Jomiah Bernard Comments: Oh! sorry I forgot to mention to you that, I perchased the fan on ebay for US102.00. On the motor of the fan has this sticker made in Tiwan.
July 26, 2016
  Followup from the Pelican Staff: It could be a defective fan. 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
 
Jomiah Bernard Comments: Thank you for repling thus fast. Yes! the fan is on all the time. If the A/C is turned on then, it will spin a little faster but, other than that it spins all the while.
Does it have anything to do with the wiring of the car since it was designed to work with a fan clutch and not the electric fan ?
In a case like this what in your opinion do you think that can resolve the problem? Thanx.

Jomiah Bernard
July 26, 2016
  Followup from the Pelican Staff: You could have a fault with a coolant temp sensor or the fan itself is faulty. Check the vehicle for fault codes, the code will point you in the right direction. - Nick at Pelican Parts  
Jomiah Bernard Comments: I have an 02 325i BMW. Did the conversion from a fan clutch to an electric radiator fan. The fan is spinning not to fast nor to slow. Even if you have been driving for an hour or more, it does not spin any faster niether does it show that the temp. Guage is rising. It remains on the half center. Any ideas or infor? Thanx.
July 26, 2016
  Followup from the Pelican Staff: The fan is on all the time? If so, something in the wiring or DME control may be faulty. - Nick at Pelican Parts  
Shade Tree Comments: my 2001 330i is running fine and not over heating but my electric cooling will not run and AC will not come on. Could my cooling fan motor be bad?
June 1, 2016
  Followup from the Pelican Staff: Yes. If you unplug the coolant sensor, the fan should come on. That is a quick test. - Nick at Pelican Parts  
Zii Comments: 2001 325Ci Auto convertible, I checked fan one day when car was starting to go over the 12 o'clock position and noticed fan was not turning. Following couple of days I ran car on idling and stationery monitoring fan, it would kick in as should. I am confused if fan is OK. It doesn't turn when I switch on air-con, or at start for a self teat. Seems doesn't kick in all the time. Help Pliz
May 19, 2016
  Followup from the Pelican Staff: I would assume the fan is faulty, especially if it is turning on sometimes and not other times,.

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
 
Jules Comments: Hello, I'm not very good with cars, can you help please?
I've got a 2002 bmw 318I se, fan working but not on full speed, can it be fixed or change the middle bit?
Thanks
March 12, 2016
  Followup from the Pelican Staff: The fan may be faulty, you will have to replace it if so. 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
 
tslavant Comments: My 2003 325i over heats and the electric fan come on for 1 sec and stops, I unplugged the water sensor and it come on wide open is there a relay issue?
January 6, 2016
  Followup from the Pelican Staff: The fan should have a plug on the right side of the shroud, I would check that the DME is in fact commanding it on when the fan stops. The control for the fan is done internal to the DME. - Nick at Pelican Parts  
Geoff Comments: Hi,
Thanks for your technical articles, I really appreciate them.
Just a comment on fig 7 and 8. I found on my E46 to remove fan it was clockwise not anti-clockwise.
Geoff
December 30, 2015
  Followup from the Pelican Staff: You are correct, that is a typo, I will have the article updated. - Nick at Pelican Parts  
Chris Comments: Nick, thank you and Pelican Parts for these articles. I along with so many others truly do appreciate them and the fact we can ask follow-up questions.
So here's mine. I just received my new T-stat, water pump, and pulleys from Pelican. I have a 2005 325i auto. I've read about what a pain it is to remove and even more of a pain it is to replace the fan on the automatics. I've also seen a few places on BMW boards you can just switch the mechanical fan for an electric fan. The members who've done it say it is just a simple plug and play with the existing electrical harness. I'm wondering if you'd be able to say whether or not it actually is that simple or if there is more involved? Any help is appreciated.
December 16, 2015
  Followup from the Pelican Staff: I have not heard of an existing plug no utilized in models with a mechanical fan. I would imagine the DME would need a software update as well, i n order to activate the fan, if this were an option. - Nick at Pelican Parts  
Mohawk93 Comments: My fan will not come out. A little mtoo thing is in the way by half an inch.
December 3, 2015
  Followup from the Pelican Staff: What kind of vehicle are you working on? - Nick at Pelican Parts  
Homeboy Comments: Hi guys. I did just stumble upon your page caused by sheer frustration on the problems of the overheating of my 2001 E46 engine.Can you perhaps tell me what the cost would be more or
less.i note that overheating is a common problem in respect of this type of engine. My contact number is 09264812683523
October 10, 2015
  Followup from the Pelican Staff: Thermostat, faulty water pump or head gasket could cause overheat. - Nick at Pelican Parts  
RRCWLV Comments: The back of my fan clutch is filthy.oily due to an oil separator leak, now fixed. What is the best way to clean the back of the fan clutch, specifically without damaging the white used to be white rectangular sensor there? How fragile is that, and what exactly does it do? How would I know if I damage it in cleaning? 2004 325 Cic E46/M54 Thanks.
October 7, 2015
  Followup from the Pelican Staff: Remove it and clean with a soft-bristle brush and warm soapy water. - Nick at Pelican Parts  
somaroo Comments: Hi i hav a bmw e46 318i m43 engine i hAve an electric fan dat is working fine bt once i noticed a rely blew off n car over heated can i apply a clutch fan only plus leave the oringal fan will it help bearing in mind i wont be able to fit a cowling cover on pleSe reply it be much appreciated
August 17, 2015
  Followup from the Pelican Staff: If your vehicle did not come with a mechanical fan when new, there will not be parts available to install one, so unfortunately no. - Nick at Pelican Parts  
Dante24 Comments: hi guys, i was wondering what is the difference in ordering a electric cooling fan manual transmisson for a 2001 e46 BMW?
July 31, 2015
  Followup from the Pelican Staff: From what? Automatic? There may be cooler fitting differences or mounts. - Nick at Pelican Parts  
Walstar Comments: Bought a fan blade for 94 BMW 318i. When I install the fan blade it rubs up against the drive belts. Took it back to Pelicanparts and they said the engine must be a 325i which has a wider base on the fan blade. Installed it and ran into the same issue. So, I bought a spacer to create a little distance between the fan clutch and the belts pulley. Car overheats. If the fan blade is screwed in tight this should'nt make it overheat right? Or could it be the fan clutch is bad?
July 24, 2015
  Followup from the Pelican Staff: The fan clutch may be faulty.I would do your best to see why the blade is rubbing, possible the fan clutch or water pump has failed. - Nick at Pelican Parts  
flyer Comments: The shroud and fan clutch design is a real disappointment in design. Pulling it out is not that bad, but getting it back on is way too time consuming. There must be some trick, but I don't know what it is.

You would think BMW would do better than that, but it might be that you now have engineers designing, that have never worked on the car.
July 14, 2015
  Followup from the Pelican Staff: What vehicle are you struggling with? It can be hard to align the tabs on the radiator with the fan shroud on some models. - Nick at Pelican Parts  
jay Comments: I have a 99 328i e46 auto. My blower fan keeps on running , even after turning the engine off. It runs at a very high speed to the point it drains the battery. Ac works great as always. Would the blower fan be the culprit or would it be the final stage resistor? Does the fan needs to be replaced or is it the FSR? thanks
June 26, 2015
  Followup from the Pelican Staff: Sounds like the final stage unit is faulty. See this tech article:
http://www.pelicanparts.com/BMW/techarticles/BMW-3-Series-E46/57-ELEC-Blower_Motor_Final_Stage_Replacement/57-ELEC-Blower_Motor_Final_Stage_Replacement.htm - Nick at Pelican Parts
 
Cody Comments: Any idea on how to re wire a relay to the electric fan on a e46?
It over heats when idling, fan does not turn on, brand new electric fan.
June 26, 2015
  Followup from the Pelican Staff: Is the fan coming on? Is the temp gauge responding to engine temp? I would assume there is a sensor or wiring issue. Using a BMW scan tool, command the cooling fan on. Does it respond?

if you want to wire in a relay and switch, I would grab a repair manual. It will have the wiring.

Give our parts specialists a call at 1-888-280-7799. - Nick at Pelican Parts
 
nely d Comments: Second fan I changed on 2004 bmw 325 I changed relay on fan fuses let car warm up fan like 10 min fan doesn't stop running take key out still running changed violent temp sensor on lower house still nothing I did not unplug battery when switching fan I can't keep putting fans in please help
June 1, 2015
  Followup from the Pelican Staff: The wiring for the fan may be shorted. The black / green wire is the control wire for the DME. Check if the DME is turning fan on or if the wire is shorted. - Nick at Pelican Parts  
Mike Comments: What are the steps to remove and replace electrical cooling fan on a 2000 BMW 528i ? Does the bumper need to come off ? Thanks Mike
May 25, 2015
  Followup from the Pelican Staff: This tech article should help you:

http://www.pelicanparts.com/BMW/techarticles/BMW-5-Series-E39/62-WATER-Cooling_Fan_Replacement/62-WATER-Cooling_Fan_Replacement.htm - Nick at Pelican Parts
 
Xscape artist Comments: I have a problem with a similar issue. 2002 325i automatic. I had to replace a bunch of cooling system. Lower hose temp sensor is new, new radiator, new expantion tank, new thermostat, new clutch fan. Car is cooling fine, its charged with freon, 29oz. The elec fan never kicks on. The 3 wires going to the fan, red, brown, black. The red is gettin constant 12v, brown, nothing, guessing black is for ground. The car does not over heat but the elec fan never kicks on. Also the signal wire to the compressor clutch has no signal, chased it back to the relay, swapped relays still nothing. I jumped the wire to compressor to check, the clutch kicks on then but still no signal from that relay to the compressor. The pressure valve on top of compressor actually blew freon like the low side line was to high. But high n low side lines are equalling out. Any help as to why the elec fan not coming on and anything else I can try far as no signal going to the compressor clutch? You can email me or reply here. Any help would be much appreciated. Its been killinb me for a week now cant figure it out.
April 3, 2015
  Followup from the Pelican Staff: On the fan, brown will be ground. Does the fan run when the engine is hot at idle?

What are system pressure key on engine off, then when you try to turn on A/C? - Nick at Pelican Parts
 
Chris Comments: I have 2001 bmw 325ci and the cooling fan stays on when the car is off I think it's a relay but can't find them if u can any information will help thank u as soon as possible
February 16, 2015
  Followup from the Pelican Staff: Sounds like a faulty coolant temp sensor. 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
 
Chris Comments: I have a 2001 bow 325 ci manual transmission and the cooling fan does not shit off it stays off And I think it might be a relay but can't find the relays in the car can u please help me any information will help
February 16, 2015
  Followup from the Pelican Staff: Sounds like a faulty coolant temp sensor. 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
 
Wandi Tjagos Comments: Hey...plz help,.my fan stopped working,,i realised after seing a temp rise,,,when i switch da car on no fan movement..bmw e46 1999.320
December 18, 2014
  Followup from the Pelican Staff: The cooling fan should come on when the engine is hot. If it isn't, check the signal to the fan, if the signal for the fan to com one is present and it does not, the fan is faulty. - Nick at Pelican Parts  
Lor Comments: In step 7 at says to "Models with a belt-driven cooling fan, you will leave the shroud in the engine compartment until you unscrew the viscous coupler from the coolant pump. You will need a 32mm wrench for the viscous coupler hex - quickly rotate it in a counter-clockwise direction." I think this is wrong... working from the front of the car, I needed to turn the "fan nut" in a CLOCKWISE direction to loosen it.
November 29, 2014
  Followup from the Pelican Staff: Good catch. If you see step 8, it shows the counter-holding tool on the left side, indicating I was loosening to toward the left.

I will have the article updated. - Nick at Pelican Parts
 
alexburn2003 Comments: I have an electric fan. on my 2002 e46 which won't turn on. but does turn on when i unplug the temperature sensor on the lower pipe. the fuses are fin. Any thoughts. i don't know how to test the sensor.
November 18, 2014
  Followup from the Pelican Staff: Is the engine overheating? You will need to monitor engine and radiator outlet temp using a BMW scan tool. If the one of the two are wrong, the fan may not come on. Unplugging turning the fan on, says the DME is seeing a signal, maybe not the right one. - Nick at Pelican Parts  
TQL Comments: Hello Nick @ Pelican parts.
Your helps to BMW users is enormous. Thanks for the service rendered.
Question 3. My AC compressor makes a circular grinding noise whenever the AC is on. Do I have to replace the entire compressor or just the bearing part?
If the entire compressor is to be replaced , what is the average cost.
Thanks again.
August 26, 2014
  Followup from the Pelican Staff: I am unsure of the cost. You can replace the clutch, which is likely the grinding, this can usually be done without removing the compressor from the vehicle.

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
 
TQL Comments: I have a 1995 325i , it has a mechanical fan between the radiator and the engine AND ALSO two fan in front of the radiator behind the "kidney" grid.
Question1 is my engine an E36 or E46
Question 2 Under which conditions do these two front fans work
Thank you
August 26, 2014
  Followup from the Pelican Staff: 1995 is an E36. The front fans will come on with the A/C or when engine temp is too high. - Nick at Pelican Parts  
anno Comments: my car had a fan in between the engine and radiator but i got into an accident and after that the mechanic mounted the fan in the front and said thats where its supposed to be. Now the engine is always hot but the gauge doesnt show any sign of overheating
August 12, 2014
  Followup from the Pelican Staff: You didn't mention the vehicle you have. If it had a fan before the accident, it should have the same fan after the repair. - Nick at Pelican Parts  
jeremy Comments: under my hood my 1999 323i has an electric fan in front and a mechanical fan attached to the engine but I have read that only the automatics were supposed to have both fans and everywhere I search it only lists the puller fan for my car not the pusher fan because its a manual transmission car
July 17, 2014
  Followup from the Pelican Staff: I would disregard what you read, it is incorrect. - Nick at Pelican Parts  
jeremy Comments: so the if the e46 3 series manual was only to have one electric fan behind the radiator im curious as to why mine has both
July 16, 2014
  Followup from the Pelican Staff: I don't follow. You could have an electric engine cooling fan and an electric condenser cooling fan. - Nick at Pelican Parts  
JKE Comments: I'm noticing a faint grinding noise coming from the engine of my '90 325is. Seems like it might be the fan or the a/c compressor. In this video you can hear it for yourself. The sound always begins once the car has been running for about 2mins onward.

Any help is always much appreciated.

Thanks kindly!

https://www.youtube.com/watch?v=k1pBbmAolOw
May 22, 2014
  Followup from the Pelican Staff: I would remove the drive belt and inspect the pulleys and components. Check for binding or noisy pulleys. - Nick at Pelican Parts  
junaid Comments: Hi guys your step by step guide is extremely helpful so i just wanted say MASSIVE THANK YOU and keep up the good work
January 9, 2014
  Followup from the Pelican Staff: Thanks for the feedback. Glad we could help.
- Nick at Pelican Parts
 

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Page last updated: Sat 4/29/2017 02:21:08 AM