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Re: PS Fluid leaking out weep hole on booster. (archive)
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Posted by mike on November 23, 2001 at 07:59:00:

In Reply to: PS Fluid leaking out weep hole on booster. posted by Brent 86' 735i on November 22, 2001 at 23:52:57:


My 86' 735i is leaking PS fluid from the weep hole on the Brake Booster. I noticed a small drip a week after I replaced the Master Cylinder a few months back. Went out to drive the car a few weeks ago and found a puddle under the car (not too big a puddle), but last night went to drive the car and the puddle was big. Could this just be the o-ring between the Brake Booster and the Master Cylinder ?? This car is not driven very much.

Thanks for any info.

Brent...


Brent, it is not the o-ring . The hydraulic brake booster must be replaced costs $300. My Haynes book says they cannot be rebuilt but search the archives to see what others have done. I replaced one on my brothers 535i leaks were small at first -then eventually puddles. mike

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