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Master cylinder, LHD

Master cylinder, LHD

To remove


1. Cover the left-hand wing.

2. Remove the battery cover and the battery.


3. V6 diesel engine: Remove the turbocharger heat shield.

4. Remove the main fuse box and place it to one side.

5. Drain the brake fluid reservoir. Use 88 19 096 Bleeding equipment .

Then connect the brake bleeder to the bleed nipple on each front brake caliper and draw out the remaining brake fluid.

6. Manual gearbox: Disconnect the clutch fluid hose from the brake fluid reservoir.


7. For change of master cylinder only:

Remove the brake fluid reservoir. Withdraw the reservoir straight upwards.

8. Clean around the brake pipes.

Disconnect the brake pipes.

9. Remove the two master cylinder retaining nuts and lift out the master cylinder.


To fit


1. Fit the master cylinder to the brake servo unit. Make sure the O-ring is in good condition and assumes the correct position.


2. Fit the brake lines in place.

Tightening torque 16 Nm (12 lbf ft)

3. Fit the brake fluid reservoir. Lubricate the connections with brake grease 49 04 108 to facilitate fitting.

4. Manual gearbox: Connect the clutch fluid hose to the brake fluid reservoir. Fit the hose clip facing upwards.

5. Bleed the brake system, see Bleeding the brake system .

6. Check the system for leaks.

7. Fit the main fuse box in place.


8. V6 diesel engine: Fit the turbocharger heat shield.

9. Fit the battery and the battery cover.