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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

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Old 03-04-2004, 03:02 PM   #1 (permalink)
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Hello,

I was recently taking out panel from under the dash (goes on top of pedals) to install an alarm. I noticed that I have some brake fluid on my brake pedal in place where it goes to master cylender.

I know that the seal is probably will go soon. Do any of you know if its possible only to replace that seal, how much it could cost, and how many hours is given for such job.

Thanks.
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Old 03-05-2004, 11:33 AM   #2 (permalink)
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To replace the whole master cylinder you are looking at 2-3 hours easy.
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Old 03-05-2004, 02:24 PM   #3 (permalink)
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Hey bimerok
I don't think its your master cylinder.The reason why I say that is because your master cylinder is mounted directly to your brake power booster then the booster is mount to the bulkhead or as commonly known firewall. The brake booster doesn't have any fluid.The booster main components are a diaphragm and a heavy spring.Sometimes the booster seal between the master cylinder can go bad and draw brake fluid out of the master cylinder by the time the booster fills enough fluid to leak in the car you won't have any fluid in the master cylinder.
I am betting you have a manual trans in your car. If so the I think your problem is your hydraulic clutch master cylinder. The clutch master cylinder mounts directly to the bulkhead and also use brake fluid to oprerate.You can get a rebuild kit for your clutch master but I suggest you replace with new. The reason why is that most clutch master are made of aluminum. And they develop a wear pattern in the bore and the seal then has a tendency to leak very soon after a rebuild.
I hope this helps
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Old 03-05-2004, 10:45 PM   #4 (permalink)
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Thanks a lot for the info.
Yes, my car is manual trans.

Do you have any idea how much could clutch master cyl. cost?
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