Parking Brake Cable Adjust
b.benz at charter.net
Sat May 3 10:11:02 EDT 2003
> From: Phil Rose <pjrose at frontiernet.net>
> Your problem is a common one in Audi models of this era--most likely
> caused by either (or both) of two things: (1) brake cables are seized
> by effects of corrosion, etc. and need replacement, and/or (2) the
> (internal) e-brake cam actuator in the rear caliper prevents the
> proper release of the piston. The inability of the brake piston to
> release is caused by loss of adequate internal cam
> lubrication--coupled with the fact that Audi rear brakes have an
> external "return" spring that is notorious for being very weak.
IMO. the more common cause of piston non-return is just sludged up
hydraulics within the caliper that can be solved with disassembly and
cleaning without getting into the PB actuating mechanism. BTDT.
The return spring is sufficient for a caliper that is in good shape.
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