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Go Back   E46Fanatics > Tuning & Tech > DIY: Do It Yourself

DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 06-17-2010, 07:58 PM   #21
mitchell172
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12-90-1-745-182 is the number on my fan that was removed. 2003 325i
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Old 06-17-2010, 10:26 PM   #22
sharpx
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props for a great thread
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Old 06-18-2010, 01:02 PM   #23
mitchell172
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Looks like the list price for the part number on my fan is about $250. They look identical except for the wiring. I'm wondering if I can "engineer" it. Hmmmm
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Old 07-25-2010, 02:43 PM   #24
achuang24
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Here we go.. STEP 1: remove the plastic cover just above the pedals..


Can someone help me? I can't get this plastic cover off after I removed the screws and pins. It seems to be stuck where the cover joins the steering column. Does the cover slide toward you, away from you, or directly down?
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Old 07-26-2010, 03:29 AM   #25
vegito
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Thank you!!! cricket noise especialy cold start!..
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Old 07-26-2010, 07:22 AM   #26
vegito
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Quote:
Originally Posted by achuang24 View Post
Here we go.. STEP 1: remove the plastic cover just above the pedals..


Can someone help me? I can't get this plastic cover off after I removed the screws and pins. It seems to be stuck where the cover joins the steering column. Does the cover slide toward you, away from you, or directly down?
There are 2 metal clips you must use a flat screwdriver to push the clip lift up than you can release the hole cover.
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Old 07-26-2010, 08:45 AM   #27
325beemer
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WOW, this is so annoying in my car, to this day I thought the only solution was to turn up the music. Incredible thread!
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Old 07-26-2010, 03:13 PM   #28
achuang24
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Quote:
Originally Posted by vegito View Post
There are 2 metal clips you must use a flat screwdriver to push the clip lift up than you can release the hole cover.
Thanks vegito, that was it. I attached a picture of the clip.

After I got the cover off, I had to go back to the dealer to swap out the 12-90-7-570-074 (two prong) for 12-90-1-745-182 (three prong).
It appears in mid-2003 changed the part and the dealer's computer system did not note this change unless they are looking at the 2 door E46.
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Old 07-27-2010, 12:55 PM   #29
vegito
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This is a very good D.I.Y its very very annoying sound
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Old 08-02-2010, 02:37 AM   #30
min24
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Is the part really approx $70? I'm searching for the blower and its like 200-300 dollars! Did the part number change?? or can someone post a direct link to buy this part online? Thanks!
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Old 08-02-2010, 03:38 AM   #31
joneperry
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so tahts what it was!!!!!! mines comes on like 2 minutes for every hour?? can i just wait for like a couple of months or is it imperative that i change it whenever possible?
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Old 08-18-2010, 11:32 AM   #32
OrientBlau
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I've had this cricket sound for a couple of years.

I will have to add this to my DIY.

Thanks!
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Old 08-18-2010, 07:26 PM   #33
delmarco
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my god! my car just started making this noise this morning. never heard it before. I actually thought a bee or bug of some sort got stuck in the vents.
WTF!
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Old 10-09-2010, 05:13 PM   #34
Luky
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Just did it. Very easy DIY. Hardest part was getting the connector to snap back into place in the side of the fuse box under the hood.

Thanks!
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Old 10-13-2010, 09:16 AM   #35
eweis
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How can you tell whether this cricket-type noise is from this "cover with blower" part behind the brake pedal being discussed here or it's coming from the blower motor discussed elsewhere (which is a much more expensive part and much harder to replace). I can't really pinpoint the source of that noise in my car.

I know...the right approach might be to replace this less expensive part first and then graduate up to replacing the other if it doesn't resolve it but I'm just wondering if there's a distinction in being able to tell one from the other.

Edit: I guess an easy way to figure this out is to disconnect the wire in the control box area for "cover with blower" part and see if the noise continues or not.

Last edited by eweis; 10-13-2010 at 02:36 PM. Reason: To add a thought
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Old 10-16-2010, 07:03 AM   #36
90 coupe
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I need some assistance...I have a 2004 325i and I just got done changing the ECU cooling fan due to cricket noise. My question is, are your supposed to hear the fan go on and off when you are inside the car? The sound that I am referring to sounds the same way as if the A/C is on . What controls the ECU cooling fan? Is it supposed to go off and on?
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Old 10-17-2010, 01:59 AM   #37
Luky
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I assume that it goes off and on (since the cricket noise was off and on). However mine is so quiet after I replaced it that I can't hear it running. I gently stuck my finger tip inside it to feel the spindle/blades turning to make sure it was working. Just pull the dash trim piece off and you can get your fingers up to it.
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Old 10-17-2010, 07:17 AM   #38
90 coupe
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Thank s for the info, I only hear the ECU cooling fan running when I dont have the radio on and the A/C is off and when the car is at a full stop. Besides that everything is fine. I did E mail the Dealer and asked them if it was normal. Maybe I got a bad cooling fan.
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Old 10-17-2010, 02:12 PM   #39
90 coupe
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Does anybody know what makes the fan turn on? I know it is not on all the time. Is there a circuit board that tells it when to turn on?
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Old 11-02-2010, 11:15 PM   #40
eso123
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"How can you tell whether this cricket-type noise is from this "cover with blower" part behind the brake pedal being discussed here or it's coming from the blower motor discussed elsewhere (which is a much more expensive part and much harder to replace). I can't really pinpoint the source of that noise in my car."

To test which fan is making the noise, when you're hearing the noise, put the fan speed on your climate controls to zero, which will turn off the climate control-heater blower motor, and also power off the climate control display. If the noise slows and stops, that's the one- the main blower.

If the noise doesn't stop, it's the little one. The cricket noise comes and goes even when the climate control is off. It also can run when the whole ignition switch is off.

The cricket noise in mine, from the little fan, sounds like its behind the instrument cluster. The climate control-heater blower motor noise comes from more like inside the center console.

Last edited by eso123; 11-02-2010 at 11:39 PM.
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