Checking the brake discs 00 34 633 Brake pads, rear brake • Press the brake caliper against the brake disc in order to force the piston back. • Carefully check the brake discs for cracking, damage, deformation and scoring. 1 34 1 571 2 K14000560 K14000250 • Remove keeper (1). • Remove retaining pin (2) with press-out tool, BMW No. 34 1 571 . • Remove brake pads. • Installation is the reverse of the removal proce- dure: pay particular attention to the following. • Measure the thickness of the brake discs at sev- eral points with a caliper gauge. Brake disc wear limit Front brake disc ....................... 4.5 mm (0.1772 in) Rear brake disc........................ 4.5 mm (0.1772 in) L Note:
Remove the silencer prior to installation of the re- taining pin ( a 18.5). • Operate brake several times until brake pads are bedded. 00.47