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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Clutch issues @ 30k tuned



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      11-29-2008, 08:20 PM   #23
Mr. 5
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Yeah it is....Got mines replaced for free...Why wouldn't be?
True, me too.
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      11-29-2008, 10:22 PM   #24
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Quote:
Originally Posted by shiv@vishnu View Post
35k miles tuned. About 500 dyno pulls, a bunch of 400+whp drag stip launches with drag radials, and a whole lotta drifting Original cluch with no hint of slippage.

Shiv
You also had no fuel pump issues, consider your car blessed.

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Originally Posted by Mr. 5 View Post
I had mine changed out with the OEM clutch at 28k miles so I'm with the OP on this one.

My first slip was on the street and then I had one on the dyno.
The BMW tech said that it was fried.
Mr.5 you had 2 slips then took it in. Did the dealer try to replicate the problem?

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Originally Posted by Turkishexpress View Post
Better your clutch then the transmission. IMHO, its a wear item and with elevated power levels should be acceptable with any factory vehicle. Some people will get lucky and some won't . I'm surprised that it is not common with more 335s considering their power potential. Hopefully they'll cover it in your warranty and everything will be fine. GL
I've always had good luck with my dealer and I am hoping this reapir isn't an issue.
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      11-29-2008, 10:25 PM   #25
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Ask robertbog, I think he's been through 3+ clutches already
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      11-29-2008, 10:54 PM   #26
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Not to dismiss a serious issue, my E46 328i seemed to slip a couple of times which I attributed to the CDV. Granted, it was actual clutch slip but was initiated by the CDV.
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      11-30-2008, 02:40 AM   #27
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Not to dismiss a serious issue, my E46 328i seemed to slip a couple of times which I attributed to the CDV. Granted, it was actual clutch slip but was initiated by the CDV.
I can understand that the CDV could initiate a slip when popping it but I just wanted to say for the record that there is no way that a cdv would cause any slip if the clutch is already engaged.
For example on a dyno run or if you are in 6th gear cruising at 40 and then WOT without shifting. Both times were slips.

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Mr.5 you had 2 slips then took it in. Did the dealer try to replicate the problem?
I brought it in hoping that they would notice it and they said that the pedal definitely didn't feel right.
The clutch was grabbing way too late, so they investigated.
I ended up getting a new clutch and I was told that the throw out bearing and disc was fried.
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      11-30-2008, 09:22 AM   #28
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Quote:
Originally Posted by Mr. 5 View Post
I can understand that the CDV could initiate a slip when popping it but I just wanted to say for the record that there is no way that a cdv would cause any slip if the clutch is already engaged.
For example on a dyno run or if you are in 6th gear cruising at 40 and then WOT without shifting. Both times were slips.
I agree, if engaged the CDV would not be a suspect. But 6th gear at 40 MPH and WOT?

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      11-30-2008, 10:29 AM   #29
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Quote:
Originally Posted by Mr. 5 View Post
I can understand that the CDV could initiate a slip when popping it but I just wanted to say for the record that there is no way that a cdv would cause any slip if the clutch is already engaged.
For example on a dyno run or if you are in 6th gear cruising at 40 and then WOT without shifting. Both times were slips.



I brought it in hoping that they would notice it and they said that the pedal definitely didn't feel right.
The clutch was grabbing way too late, so they investigated.
I ended up getting a new clutch and I was told that the throw out bearing and disc was fried.
Thanks for the info. I have a throw out bearing issue as well. Hopefully, I'll have minimum resistance with this repair.
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      11-30-2008, 10:30 AM   #30
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Quote:
Originally Posted by 335e90 View Post
Ask robertbog, I think he's been through 3+ clutches already
3...wow!
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      11-30-2008, 12:16 PM   #31
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I agree, if engaged the CDV would not be a suspect. But 6th gear at 40 MPH and WOT?

Yah, it was a test on my clutch to see if it would slip and it did.
I did that because I thought that it slipped on the freeway before so I did the test--high gear, going slow, WOT.
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      11-30-2008, 12:24 PM   #32
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Any more info on change in clutch parts (heavier duty replacement that GM talked about) would be appreciated. Anyone concerned that modded CDV will inspire warranty denial on clutch?
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      11-30-2008, 12:30 PM   #33
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Any more info on change in clutch parts (heavier duty replacement that GM talked about) would be appreciated. Anyone concerned that modded CDV will inspire warranty denial on clutch?
I had my CDV completely removed while I received the new clutch.
I'm not syaing that this will be the case for everyone, but for me it didn't matter.
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      11-30-2008, 02:42 PM   #34
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Judging from the influx of Pm's I have been receiving, this clutch issue is not an isolated problem.
Quote:
Originally Posted by stressdoc View Post
Any more info on change in clutch parts (heavier duty replacement that GM talked about) would be appreciated. Anyone concerned that modded CDV will inspire warranty denial on clutch?
Sure it could. I go to great lengths to keep the stock look, I even switch out my aftermarket wheels prior to service to be on the safe side.

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I had my CDV completely removed while I received the new clutch.
I'm not syaing that this will be the case for everyone, but for me it didn't matter.
I would say they overlooked it.
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      11-30-2008, 05:12 PM   #35
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I would say they overlooked it.
I agree.
They already made up their mind that the clutch didn't feel right so I believe they already started the work before they found out.
No matter what, they did it for me.

Here are some pictures of the process.
I know the guys at the dealer, and they're pretty cool with giving me the info with everything.
Can you guess which is the new clutch?

The disc wasn't that bad compared to the throw out bearing.
I'd have to say that BMW was smoking some serious crack for them to come out with a PLASTIC throw out bearing.
That's right, the ring that bonds with the springs of the pressure plate is plastic. Hence, the melted grooves in the throw out bearing.
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      11-30-2008, 05:22 PM   #36
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Great Pics! Thank you for the visual. Melted grooves! For a moment, I thought the grooves were suppose to be there.

It looks like the new clutch is made from a slightly different material? Is it revised?

Do you keep all your old parts as souvenirs?
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      11-30-2008, 11:38 PM   #37
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Quote:
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It looks like the new clutch is made from a slightly different material? Is it revised?
The difference in look could just be that the old one is dirty and worn.
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      12-01-2008, 10:10 AM   #38
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The difference in look could just be that the old one is dirty and worn.
Yep, they're the same.
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      12-01-2008, 06:54 PM   #39
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So I can expect another failure at 60K?
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      12-01-2008, 06:59 PM   #40
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i got 87k on my 06 330xi and my clutch hasnt slipped yet...
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      12-01-2008, 09:00 PM   #41
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No exhaust. Do a Custom straight pipe..
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      12-01-2008, 09:23 PM   #42
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should be covered under your maintenance plan
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