Installing Shims

Installing shims

Special tools:
999 2917 EXTRACTOR 999 2917 Extractor
999 2809 PRESS TOOL 999 2809 Press Tool

Introduction, installing shims
A kit with a new type of shim has been developed for the rear brake calipers. The kit P/N is 272272-6 (kit with 4 shims).

Note! Kit 272272-6 must not be installed in cars with brake caliper 3524365-8 and 3524366-6. The piston has a "step" (lowered 180°) on the mating surface with the brake pad.

Removing the rear wheels
Remove the rear wheels.

Removing the retainer spring




Push out the split pins with a 3 mm drift.
Pull out retaining spring.

Removing the brake pads




Remove the brake pads and shims.
Use puller 999 2917 EXTRACTOR 999 2917 Extractor if the brake pads will not come out easily.

Cleaning and inspection
Clean the brake pad contact surfaces in brake caliper.
Check the piston dirt guard.
If the dirt guard looks worn, replace it as a precautionary measure.
If the dirt guard is damaged, overhaul the brake caliper. Brake caliper rear, overhaul Brake Caliper Rear, Overhaul.




Press back the pistons with a pipe wrench or tool 999 2809 PRESS TOOL 999 2809 Press Tool. Take care not to damage the dirt guard.
Check that dirt guard is in position properly.

Installing shims




Grease shim on both sides with a thin layer of silicone grease, PN 1161325-4.
The new type of shim has a notch in the edge. The shim must be installed in the brake caliper with the notch down as illustrated.

Installing brake pads





Install:
- brake pads
- one split pin and retaining spring first, then the other split pin.