34 11 519 Removing and Installing/Replacing Left or Right Front Brake Caliper

34 11 519 - Removing and installing/replacing left or right front brake caliper





Important!
The brake pad wear sensor must be replaced once it has been removed (brake pad wear sensor loses its retention capability in the brake pad).





Necessary preliminary tasks:
- Remove wheels 36 10 300 Removing or Installing Front or Rear Wheel.

- Read and comply with General Information Service and Repair.

- If necessary, replace brake pad sensor 34 35 001 Replacing A Brake Pad Sensor (Front)

After completing work: Bleed braking system 34 00 025 Replacing Fluid In ABS/ASC+T Brake System





Press clutch pedal down to floor and secure with pedal support.

Note:
The pedal support may only be released when the brake lines are reconnected.
This prevents brake fluid from emerging from the expansion tank and air from entering the system when the brake lines are opened.





If necessary, pull brake hose out of holder (1).

Important!
Grip brake hose at square head (3) to prevent connecting piece from turning in retaining bracket.

Disconnect brake hose from brake line (2).

Installation Note:
Tightening torque 34 32 1AZ 34 32 Brake Lines.

Detach brake hose from brake caliper (4).

Installation Note:
Tightening torque 34 32 2AZ 34 32 Brake Lines.





Important!
Never twist brake hose when installing it and avoid all contact with parts attached rigidly to the body.

Note:
First tighten brake hose on brake caliper.
Move wheels into straight-ahead position.
Insert brake hose in bracket and screw onto brake pipe.





Unscrew guide bolts (1).
Remove brake calliper by pulling upwards.

Installation Note:
Clean guide screws only; do not grease.
Check threads.
Replace all guide screws which are not in perfect condition.
Tightening torque 34 11 4AZ 34 11 Front Brake.