Repairing/Rebuilding Rear Calipers?
knotnook at traverse.com
Wed Feb 27 21:42:36 EST 2002
At 08:22 PM 02/27/2002 -0600, Steve Crosbie wrote:
> Good point about trailer grease, however the lower chamber was
>completely free of brake fluid. Neither caliper had even a hint of
>anything in there but the jelly bean and some very dried up grease.
Audi specifies a lithium grease G 052 150 AZ for the caliper. It looks
like a very heavy petroleum jelly. The caliper from my 200q20v that I
stripped after replacing with a new one because it wouldn't retract the
piston despite the E-brake lever moving freely had the chamber below the
threaded rod packed solid with this stuff. It was in excellent shape. I
think my caliper didn't work because of corrosion on the piston.
The caliper from my '86 5ktq parts car that had had its E-brake cables cut
off had a bunch of rust and no sign of grease of any type in the chamber
below the threaded rod. Its E-brake lever wouldn't move even with the
threaded rod out until I Kroiled it for a day and then used a small hammer
to tap it back and forth several times.
More information about the 200q20v