BMW M Coupe | M Roadster Resource Network - MCoupe.com

BMW M Coupe, M Roadster | Z3 & Z4 Resource Network

I had the M coupe up on the lift today looking for any oddities. After a brief inspection, it appears to be a little wet near the oil drain plug. So, after taking the protective pieces away I think I pinpointed the issue. My first thought was oil, but after some research I think it might be water per the rust present around the area.

*** Update *** Fixed ***
The issue was part number 11-11-1-318-185 (Constant Pressure Value). This particular part is prone to fail due to the o-ring heating up and deteriorating over time. The part is about $35 from the BMW dealer. If you have the right tools, you might be able to replace yourself.


I believe the correct items are #9, and #10 in this diagram:




I think this is the culprit:



Take a look at the rest of the pictures:

















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Comment by Mcoupe on April 28, 2009 at 1:06pm
Yes, It's fixed now. It was the "Constant Pressure Valve", part number 11-11-1-318-185 .
Comment by ClintMCoupe on February 24, 2009 at 10:38am
did you ever figure this out? or fix the problem?

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