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Old 09-06-2001, 02:56 PM
tgrand tgrand is offline
Registered User
Join Date: Sep 2001
Location: Colorado
Posts: 40
no rear brakes on 300E

Having just replace the rear rotors I now have evidence that the rear brakes are doing almost nothing. 250 miles and still have tooling finish. Previously I have replaced the brake fluid, DOT 4 BMW stuff from my mechanic, new pads and I have taken apart the calipers and meticulously cleaned them. I also polished the pistons with 1000 grit wet paper, very lightly. When I replaced the rotors last weekend the pistons retracted very easily in the caliper and there is no evidence of leakage.
What next? I don't think at this stage new calipers will help although the seal in the calipers did seem very hard and the rubber boots are in poor shape. Is there a repair kit? Is there an adjustment for front/rear balance? I have a firm brake peddle with no loss of pressure or spongy feel when stopped.

Thanks in advance.

1988 300E
Arctic White 81k miles
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