With Mark II ABS System

Removal
To change master cylinder, the hydraulic unit should first be removed.

WARNING:
- When carrying out any work on the brake systems hydraulic circuits the system must first be depressurized.
- Depress the brake pedal about 20 times or until noticeable resistance is felt in the pedal.

1. Remove the brake fluid reservoir.
2. Transfer the rubber seals to the new master cylinder.
- If they are damaged, install new ones.
3. Disconnect the delivery pipe between the pump and master cylinder.
4. Remove the bracket for the pump's electrical connector (1 bolt).
5. Undo the pump retaining bolt and lift out the pump.
6. Remove the valve block's three retaining nuts.

Important: Take care to ensure that the five small 0-rings on the side of the valve block are not lost.

Installation





1. Install the valve block.

Important: Make sure that the five small 0-rings are in place.

2. Install the pump and tighten the retaining bolt.
3. Install the bracket for the pump's electrical connector (1 bolt).
4. Install the delivery pipe between the pump and master cylinder.
5. Install the brake fluid reservoir.
6. Reinstall the complete hydraulic unit.