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Seeking o-ring for brake master cylinder/power brake


MRob

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Threads on here say you need an o-ring for the brake MC/power brake connection.

 

Realoem doesn't show this o-ring exists (at least in any diagram I could find).

 

It does appear in pics of aftermarket brake MCs (Uro's is attached), but according to bavauto the companies don't sell the o-ring separately.

 

Has anyone run into this issue before? What did you do? Is this a generic o-ring? Thanks in advance.

Uro brake master cylinder.jpg

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You can find the correct O ring by using E12 5 series as the model application. It's a square cut O ring and is absolutely required for proper brake function.

 

We sell 'em. See link below: :D Item #6

 

http://bimmer.com/bmw/showparts.do?model=3991&mospid=47163&btnr=34_0204&hg=34&fg=25

Edited by wegweiser

Paul Wegweiser

Wegweiser Classic BMW Services

Nationwide vehicle transport available

NEW WEBSITE! www.zenwrench.com

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