Parking Brake System: Adjustments

Adjusting the foot-operated parking brake
Tools





Preliminary work
Raise vehicle ->40 Lifting the vehicle - chapter on preliminary work'.

Foot-operated parking brake: checking free play
The foot-operated parking brake, hereafter referred to as the FPB, is equipped with asbestos-free brake pads. The FPB pedal module is located on the left in the driver's footwell.

Note:
^ An FPB that is equipped with asbestos-free brake pads must never be adjusted in such a way that the pad has to grind free during operation!
^ Adjustments must only be carried out at the two rear wheel adjustment devices. No adjustment may be made on the pedal module or on the Z deflector on the centre console.
^ Ensure that the FPB cables are routed correctly.

Check free play on the pedal module:
To do this, measure from the left seat rail up to the lower edge of the pedal plate of the FPB!

1. Depress Adjustment value 40 mm +5 mm. If this dimension is reached, the wheels must be able to turn without grinding the brake pads.
2. Depress Adjustment value 75 mm +5 mm. If this dimension is reached, the wheels must be fixed. If the wheels can still turn, the FPB must be adjusted!

Adjusting the foot-operated parking brake
The rear wheels must be removed so that the adjustment device can be accessed'





In the event of unfavorable tolerances, the brake pads may prevent the brake disc from turning freely. If this happens, the brake pads must be pressed back slightly and evenly with the piston resetting fixture (replaces P83) NR.144, see Workshop Equipment Manual, Chapter 2.4 -direction arrow-!

1. Release the FPB pedal so that the wheels and brake discs can turn freely.
The wheels may still grind slightly even the n! If this happens, loosen the rear brake cables by moving them to and fro gently!
2. Remove rear wheels.





3. Adjust brake shoes (on both wheels). To do this, unscrew the plug -arrow- and turn the brake disc with the opening towards the adjustment device position. Using a screwdriver, modify the adjustment device until the wheel can no longer be turned. Then unscrew 6 teeth (wheels must be free to turn).
4. Check the free play on the pedal module once again.
5. Position disc brake pads by operating the brake several times.

Subsequent work
Mount rear wheels.