34 21 745 Removing and Installing or Replacing Rear Left or Right Brake Caliper (Teves)

34 21 745 Removing and installing or replacing rear left or right brake calliper (Teves)





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 wheel
^ Read and comply with General Information.

After completing work: Bleed 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.





Important!
Grip brake hose at square head (2) so that connecting piece can not rotate in retaining bracket.

Disconnect brake hose from brake line (1).

Installation:
Tightening torque 34 32 1AZ.

Detach brake hose from brake caliper (3).

Installation:
Tightening torque 34 32 3AZ.





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 calliper.

Insert brake hose in bracket and screw onto brake pipe.





Lift out retaining spring (1).





Remove cover plug (1).

Pull brake pad wear sensor out of brake pad (right side only).

If necessary, replace brake pad wear sensor.





Unscrew guide bolts (1).

Remove brake caliper (2) by pulling forward.

Installation:
Tightening torque 34 21 4AZ.

Clean guide screws only; do not grease.

Check threads.

Replace all guide screws which are not in perfect condition.

Important!
Mark any worn brake pads.





In the event of one-sided brake pad wear, do not change brake pads round.

Remove outer brake pad.

Inner brake pad is located with its spring in the piston.

Clean brake pads.

Do not grease backs of brake pads sleeve.