Checking brake disc wear • Remove grub screw (2) and spring (3). e Attention: Integral ABS Press back pistons on only one side of the brake caliper. Allow the brake pad on the op- posite side to remain in the caliper during this proc- ess. Make sure that the fluid level in the wheel-circuit res- ervoir does not rise above “max”. Risk of fluid escaping. If fluid escapes, proceed in accordance with “in- structions for filling reservoir”. • Carefully check the brake discs for cracks, dam- age, deformation and scoring. • Press back piston with inner brake pad only far enough to allow the new brake pad to be slipped into position. • Remove remaining old brake pad and insert new brake pad.
• Press back piston with outer brake pad only far enough to allow the new brake pad to be slipped into position. • Remove remaining old brake pad and insert new brake pad. L Note: After switching on the ignition, always wait for the BMW Integral ABS to complete its self-diagnosis. Do not operate the brake lever until self-diagnosis has completed. R22000260 • Measure the thickness of the brake discs at sev- eral points with a caliper gauge. Brake disc wear limit: front: ........................................... 4.5 mm (0.177 in) rear: ............................................
4.5 mm (0.177 in) Replacing brake pads 34 11 008 Brake pads, front brake • After replacing the pads of a caliper, always bed in the new brake pads with the ignition switched on. e Attention: Integral brakes, the rear brake must be ready for use. L Note: Note position and arrow (4) of spring (3). • Install grub screw (2) and spring (3). • Reinsert the split-pin keeper (1) in the groove in grub screw (2). • Check operation of the brake system with the ig- nition switched on. 4 3 2 X Tightening torque: Grub screw in front brake caliper ................... 7 Nm Colour code:
Brake pads/brake calipers ..............................white 1 R22000270 • Remove the split-pin keeper (1) from grub screw (2). 00.38