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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Tracking, Autocrossing, Dragstrip, Driving Techniques > Anyone else have throw out bearing issues...



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      09-14-2008, 05:22 PM   #1
S4to335
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Anyone else have throw out bearing issues...

I can hear the damn thing now..and my tech noticed it too. Looks like I am back in the shop after the next track event. Ugh.
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      09-14-2008, 05:30 PM   #2
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Yep, amongst many other annoying issues.
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      09-14-2008, 08:49 PM   #3
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Quote:
Originally Posted by S4to335 View Post
I can hear the damn thing now..and my tech noticed it too. Looks like I am back in the shop after the next track event. Ugh.
Effects of too much power?
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      09-15-2008, 09:51 AM   #4
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how/when do you hear it? Only when depressing the clutch?
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      09-16-2008, 01:10 PM   #5
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Whats the sound of it? Do you hear with when depressing clutch or
letting of of it in neutral. I have a sound, but it might just be flywheel chatter
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      09-16-2008, 01:47 PM   #6
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Just sitting there..not touching the clutch..just revving the car with cluch disengaged..you can hear it vibrate when the revs are decreasing.
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      09-16-2008, 03:37 PM   #7
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Quote:
Originally Posted by S4to335 View Post
Just sitting there..not touching the clutch..just revving the car with cluch disengaged..you can hear it vibrate when the revs are decreasing.
Sure its not the infamous wastegate?
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      09-16-2008, 03:41 PM   #8
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Quote:
Originally Posted by sambonator View Post
Sure its not the infamous wastegate?
My wastegates were replaced.
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      09-16-2008, 04:01 PM   #9
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When you rev in Neutral without it depressed does it
get louder and then just sitting there do you get a good bit
of chatter?
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      09-16-2008, 04:20 PM   #10
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Quote:
Originally Posted by umcool911ok View Post
When you rev in Neutral without it depressed does it
get louder and then just sitting there do you get a good bit
of chatter?
Crud..I cant remember..the car is at the shop right now..so I cannot check it out until I get it back.
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      09-16-2008, 05:37 PM   #11
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How many miles? Haven't heard of too many clutch problems despite all the tuning going on.
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      09-16-2008, 06:26 PM   #12
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Quote:
Originally Posted by 335lvr View Post
How many miles? Haven't heard of too many clutch problems despite all the tuning going on.

27K miles. Of those...about 12 were track days...I have never taken my car to the drags..and never intend to. I have never slipped the clutch either.
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      09-17-2008, 10:18 PM   #13
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I can hear the chatter on the outside and inside of my car when sitting
in neutral over my exhaust. Does not just sound like flywheel either.
I will try and get a sound clip up tomorrow
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      09-17-2008, 10:23 PM   #14
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I haven't had this problem on the E46, but I had it on my other car. It was the most annoying thing, but after years of driving with it being problematic, I just lived with it.
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      09-18-2008, 01:57 AM   #15
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Quote:
Originally Posted by S4to335 View Post
I can hear the damn thing now..and my tech noticed it too. Looks like I am back in the shop after the next track event. Ugh.
If you depress the clutch the sound changes or goes away, it's most likely a T/O bearing. However, if you get vibration during the application or release, either the T/O bearing is binding up or there is an issue with the clutch disc or pressure plate(weak or broken finger) or maybe all 3.

BMW had T/O issues since the E36 days, E46's didn't fair any better. Same goes for the clutch and pressure plate.

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      09-18-2008, 10:24 AM   #16
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I have this issue too. Took it to the dealership twice. The first time they replaced the throw out bearing, but the sound didn't go away. After the fix, though, the clutch seemed to engage faster. Took it back to the dealership again to fix the noise and this time they said it's normal. I'm not sure what's the root cause of this chattering. The sound is unbearably annoying!
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      09-18-2008, 12:13 PM   #17
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Quote:
Originally Posted by S4to335 View Post
27K miles. Of those...about 12 were track days...I have never taken my car to the drags..and never intend to. I have never slipped the clutch either.
12k out of 27k are track miles... that is AWESOME!!!

(but remind me to take a pass if i see a white 'low miles' E90 335 for sale in the future... )
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      09-18-2008, 07:30 PM   #18
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My car is about to turn over 29k, with no track days or anything.
Today I was getting a good bits of vibrations sitting at idle and
the sound is pretty loud. I will go outside and get some sounds clips tonight
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      09-19-2008, 07:00 PM   #19
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Noob question here guys, what is a throw out bearing?

I ask because I get rattling noises, but only once in a while, when I start moving in first gear and don't give much throttle while declutching.

Thanks for answering!

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      09-19-2008, 07:24 PM   #20
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Quote:
Originally Posted by kenneth View Post
Noob question here guys, what is a throw out bearing?
To dumb it down a bit (no offense)...

In short, your clutch pedal operates a lever arm that is attached to a donut-shaped piece called a throw out bearing. One side is a solid plate the other side has a face that spins. When you press the clutch pedal the lever jams the throw out bearing into the clutch pressure plate, activating the mechanism to remove pressure from the clutch disc thereby disengaging the engine from the transmission. The clutch pressure plate is always spinning with the engine, so that's why the t/o bearing has a spinning face. When either the pressure plate mechanism or the t/o bearing has wear or play you can experience noise.
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      09-19-2008, 07:49 PM   #21
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Thank you Kaleb! but you didn't dumb it down enough........ha ha J/K.

I get it, it's related to the transmission. So you think it's likely I have this problem, by my earlier explanation?
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      09-20-2008, 12:29 AM   #22
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Quote:
Originally Posted by Nick Nazareno View Post
12k out of 27k are track miles... that is AWESOME!!!

(but remind me to take a pass if i see a white 'low miles' E90 335 for sale in the future... )
Yeah...and I am a locomotive on the track...toot toot..get outta my way.
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