Front

NOTE:
- When work has been completed, actuate brake pedal several times to ensure that brake pads make firm contact with brake disks.
- When installing new brake linings on the front axle and simultaneously replacing the brake linings on the rear axle, check the brake-fluid level and top up to the "MAX" marking if necessary.

Procedure
- Remove wheels,





- Lift out retaining spring (1).
Left: Disconnect plug connection for brake lining sensor.





- Remove plastic plugs (2).
- Lift brake hose out of bracket.





- Unfasten guide screws (1) and lift out brake caliper towards rear of vehicle.
Installation:
Only clean guide screws; do not grease.
Check threads.
Replace any guide screws which are not in perfect condition.
Tightening torque, refer to Tightening. Specifications





- Remove outer brake lining.
Inner brake lining is located with its spring in the piston

CAUTION:
- Mark any worn brake linings.
- In the event of one-sided brake lining wear, do not change brake linings round.

- New brake linings should only be installed if the brake disk thickness is greater than or equal to minimum thickness (MIN TH), refer to Dimensions. Specifications
- Note residual lining thickness of brake linings, refer to Dimensions. Specifications
- Clean brake linings.
- Do not grease brake lining back plate.





- Installation:
Turn piston fully back with special tool 34 1 050.

CAUTION: When pressing down piston, note brake fluid level in expansion tank.





- Check dust sleeve (1) for damage and replace if necessary.
- Clean contact surfaces (2) of brake piston and coat with a thin layer of anti-squeak compound.

CAUTION: Dust sleeve must not come into contact with anti-squeak compound as it may cause dust sleeve to expand.





- Clean contact surfaces (1 - 2) of brake-lining tee heads on brake caliper and thinly coat with anti-squeak compound.

NOTE: Grease contact surfaces on brake caliper at top and bottom.





- Clean contact surface (3) of brake linings on brake caliper and thinly coat with anti-squeak compound.





- Clean hammer head guides on brake caliper holders and coat with a thin layer of anti-squeak compound.