Front Without PCCB

Removing and installing front brake disc





Preliminary work

Remove wheel.

General warning notes

Warning
Risk of accidents if brake pads and/or brake discs are not replaced in time.
^ Danger of injury and damage to vehicle if braking effect is impaired.

- The brake pads must be replaced on each axle when the brake pad warning indicator lights up, but no later than when there is a residual pad thickness of 2 mm.

Caution
Increased risk of damage to brake discs when mounting/removing wheels.
^ The brake discs can be damaged.

- Use assembly aid (assembly pins) in order to exclude any possibility of heavy contact of the wheel with the brake disc.

Removing front brake disc

Warning
Risk of accidents if brake pads and/or brake discs are not replaced in time.
^ Danger of injury and damage to vehicle if braking effect is impaired.

- The brake pads must be replaced on each axle when the brake pad warning indicator lights up, but no later than when there is a residual pad thickness of 2 mm.

Information
In order to gain better access for removal of the brake calliper, it is beneficial to turn the wheels fully either to the right or the left.

1. Release holder for wear indicator connector on wheel carrier.
2. Disconnect the speed sensor (ABS sensor).
3. Push brake pads back slightly and evenly using the piston resetting fixture Nr.144 (-Direction arrow-). Make sure that no brake fluid runs out of the supply tank drain it if necessary.





Pushing back brake pad

4. Undo brake calliper on wheel carrier and hang it in a suitable place in the wheel well (do not open the brake hydraulics!).
5. Remove brake disc after unscrewing the fastening screw. If necessary, remove the brake disc by hitting it gently with a rubber hammer.

Installing

Warning
Risk of accidents if brake pads and/or brake discs are not replaced in time.
^ Danger of injury and damage to vehicle if braking effect is impaired.

- The brake pads must be replaced on each axle when the brake pad warning indicator lights up, but no later than when there is a residual pad thickness of 2 mm.

Caution
Increased risk of damage to brake discs when mounting/removing wheels.
^ The brake discs can be damaged.

- Use assembly aid (assembly pins) in order to exclude any possibility of heavy contact of the wheel with the brake disc.

Do not confuse right and left brake discs during assembly!

Distinguishing characteristic: Part No.! The flat surface of the brake discs is marked with R = right or L = left.

1. Check that all parts are in perfect condition and replace them if necessary.
2. Clean the levelling and centering surfaces on the brake disc and wheel hub. Then apply a very thin coat of Optimoly TA to the centering surface on the wheel hub.
3. Fit the brake disc. Observe correct tightening torque.
4. Fit the brake calliper. Replace the brake calliper fastening screws following removal. Observe correct tightening torque.
5. Install holder for connector for wear indicator on the wheel carrier.
6. Connect the speed sensor on the ABS sensor.
7. Position disc brake pads by operating the brake several times.
8. Check brake fluid level and correct it if necessary. The brake fluid level must be between the MAX-MIN marking.





Brake system: checking fluid level

Subsequent work

Fit wheel.