E34 540 Leaking Brake fluid at MC connections

[Tirnanog]

Hello All, my 540 is leaking breakfluid at the master cylinder connections, or is collecting there anyway. They're the later "non screw" type. Are there kits to fix this ? or do you know of a solution. Thanks in advance.

[Anthony (M5 in Calgary)]

Hello All, my 540 is leaking breakfluid at the master cylinder connections, or is collecting there anyway. They're the later "non screw" type. Are there kits to fix this ? or do you know of a solution. Thanks in advance.

If you mean where the fluid enters at the top, you need new grommets. Cheap and easy fix.

[l8apex]

into rubber grommets on top of the master cylinder. I've never had any problems with mine in 180,000 miles. The grommets should be cheap at the stealer. Make sure to thouroughly bleed the system afterward.
E34 540i BRAKE MASTER CYLINDER/EXPANSION TANK</B>
RealOEM.com Home (http://www.realoem.com/bmw/) => Select another car (http://www.realoem.com/bmw/select.do) => BRAKES (http://www.realoem.com/bmw/partgrp.do?model=HE63&mospid=47410&hg=34) => BRAKE MASTER CYLINDER (http://www.realoem.com/bmw/partgrp.do?model=HE63&mospid=47410&hg=34&fg=25)

http://www.realoem.com/bmw/diagrams/p/y/1.png
No. Description Supplement Qty From Up To Part Number Price Notes 01BRAKE MASTER CYLINDER109/199334311161870$555.7701BRAKE MASTER CYLINDERLUCAS109/199334311162915$360.4702PLUG234311163464$4.3503SEL F-LOCKING COLLAR NUTM8231331092887$0.5604BRAKE MASTER CYLINDER O-RING13431115900705EXPANSION TANKGIRLING134321160576$94.8606CAP WITH WARNING SWITCHLUCAS134321162810$27.3407GASKETLUCAS13432115 739608FLAT FUSESB10107129934921
Notes: Items pictured but not listed are not installed on your vehicle or listed on another diagram.
SI, TÜV, SDB = Service Information (refer to TIS)

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