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      10-15-2010, 06:52 AM   #1
dj john
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slipping clutsh

hi,i own a 118d..does anybody have a clue abouth slipping clutsh pedal? leting the clutsh pedal outh when starting in 1 gear..it felels like slipping..most in hill starts..but som times on flatt road..it is like a jerkky ride..the clutsh is not bad..maybe clutsh delay valve?rest off the gears are ok..no slipp..hope somebody can help me..

Last edited by dj john; 10-15-2010 at 01:51 PM..
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      10-15-2010, 07:42 PM   #2
RPM90
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Quote:
Originally Posted by dj john View Post
hi,i own a 118d..does anybody have a clue abouth slipping clutsh pedal? leting the clutsh pedal outh when starting in 1 gear..it felels like slipping..most in hill starts..but som times on flatt road..it is like a jerkky ride..the clutsh is not bad..maybe clutsh delay valve?rest off the gears are ok..no slipp..hope somebody can help me..
Your symptom sounds like a "glazed" clutch, which tend to be grabby with an uneven feel. This happens if you ride the clutch too much or too long during take off. It can also happen during a higher rpm "launch" where you may have ridden the clutch too long and let it slip. It causes excess heat build up and some of the clutch material can melt and then that causes rough spots. So, instead of an even clutch engagement, the clutch will tend to grab the slip, grab then slip.
This can also happen of you shift down to a low gear and your engine and vehicle speed is too high, and you try to ride the clutch to smooth into the lower gear, that too can cause excess heat.

You can try deglazing by doing some 2nd gear starts. Use moderate rpm, and let the clutch pedal out quickly. Don't use a high rpm and don't hold the pedal long. Over a bit of time the clutch material should smooth itself back out and your shifts should come back to normal.
While doing this don't do any aggressive high rpm launches and don't do any high speed into low gear decels.

If it doesn't correct after trying this, you may have to have the clutch and flywheel deglazed by hand, or if the clutch has a lot of wear then just replace it.
Good luck.
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      10-15-2010, 08:11 PM   #3
Dackelone
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Quote:
Originally Posted by dj john View Post
hi,i own a 118d..does anybody have a clue abouth slipping clutsh pedal? leting the clutsh pedal outh when starting in 1 gear..it felels like slipping..most in hill starts..but som times on flatt road..it is like a jerkky ride..the clutsh is not bad..maybe clutsh delay valve?rest off the gears are ok..no slipp..hope somebody can help me..
I think it is your CDV. It makes the clutch not engage or disengage quickly. Hence the jerky shifts, espcially in 1st and 2nd gears. Does your car shift like you just learned to drive a stick? Then change your CDV and you will be VERY happy you did so.

Go to the DIY section and look for "CDV delete".


Btw... one way to test IF your clutch is worn is to put he car in fourth gear while stopped. Let the clutch out quickly. The engine should stall fast. IF not your clutch is bad. Just don't fo this test alot - bc you will wear out your clutch! lol
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      10-16-2010, 12:59 PM   #4
dj john
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Quote:
Originally Posted by Dackelone View Post
I think it is your CDV. It makes the clutch not engage or disengage quickly. Hence the jerky shifts, espcially in 1st and 2nd gears. Does your car shift like you just learned to drive a stick? Then change your CDV and you will be VERY happy you did so.

Go to the DIY section and look for "CDV delete".


Btw... one way to test IF your clutch is worn is to put he car in fourth gear while stopped. Let the clutch out quickly. The engine should stall fast. IF not your clutch is bad. Just don't fo this test alot - bc you will wear out your clutch! lol
thank you RPM90 and
Dackelone..yes that i will do..2,3,4,5,6th gears is not slipping on full trotle..speed..it,s allways when starting in 1st gear..inn the summer i allmosth never notice it..but now when i putt on vinter tier,s i can feel it all the time..bmw in norway say it,s problelly driven to hard..but what do i know..i bought it from germany may 2009..its allmost as x-file..

Last edited by dj john; 10-16-2010 at 01:51 PM..
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      10-16-2010, 05:29 PM   #5
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http://www.1addicts.com/forums/showthread.php?t=209440

post #93 & #123 are my photos...
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