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'06 330xi Clutch studder and engage point

Lenaxia2010-08-18 18:59:50 +0000 #1
So I let one of my friends drive my e90 today, and he said that my clutch was kind of weird since it released at only about 10% out. His reference is his IS350 and one of our other friend's e46 both of which engage really late, at about 70-80% out.

Are any other drivers seeing this or is this normal for the clutch? This is my first standard transmission so don't really have a personal reference.

Also, when shifting from 1st to 2nd I get a pretty bad stutter in the clutch when I go to release it. When I'm coming back to engage, it also is really rough, it's almost like a pop, even when I engage slowly.

I'm able to mostly, but not entirely, mitigate the release stutter by releasing the clutch but leaving the gas depressed so the RPMs don't drop below 2k unloaded, is this normal?

Oh yeah,

-No CDV delete

-January '06 build

-78000 miles, original clutch
bavarian192010-08-18 19:02:11 +0000 #2
do the CDV delete
BK2010-08-18 19:19:20 +0000 #3
Quote:

Originally Posted by Lenaxia

So I let one of my friends drive my e90 today, and he said that my clutch was kind of weird since it released at only about 10% out. His reference is his IS350 and one of our other friend's e46 both of which engage really late, at about 70-80% out.

Are any other drivers seeing this or is this normal for the clutch? This is my first standard transmission so don't really have a personal reference.

Also, when shifting from 1st to 2nd I get a pretty bad stutter in the clutch when I go to release it. When I'm coming back to engage, it also is really rough, it's almost like a pop, even when I engage slowly.

I'm able to mostly, but not entirely, mitigate the release stutter by releasing the clutch but leaving the gas depressed so the RPMs don't drop below 2k unloaded, is this normal?

Oh yeah,

-No CDV delete

-January '06 build

-78000 miles, original clutch

On the 10% versus 70-80% issue, it's normal. All cars have different engagement points. I think 70-80% is waaaaaay too high, or maybe your friend is exaggerating. I prefer the clutch engage relatively close to the floor. As long as your clutch fully releases and fully engages, and the engagement point is always at around the same place, you're fine.

On the 1st to 2nd shift, you probably just need to get better at driving a MT. When the engine and transmission are cold, all modern BMWs have a relatively rough 1-2 shift, but it's not as bad as you describe.

IMO, no need for CDV delete. I've driven with and without a CDV delete, and there's no significant difference in feel unless you're trying to shift really quick, like drag racing -- in which case the CDV is annoying.

Your mileage on the original clutch is not excessive BTW. Unless you notice the clutch slipping, your clutch is fine. What you describe is not clutch slipping.
jibaholic1012010-08-18 19:40:40 +0000 #4
do the CDV mod, the difference is night and day
Lenaxia2010-08-18 19:16:24 +0000 #5
Alright, thanks for the feed back guys!
Peej2010-08-18 20:56:32 +0000 #6
we had this problem with studder at the engagement point, after two visits to the dealer they replaced the clutch under warranty and the problem is gone
laperacfo2010-08-18 21:39:09 +0000 #7
when did the IS350 come with MT?

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