Master Cylinder

Master Cylinder

Special tools, testers and auxiliary items required

• Brake Charger/Bleeder Unit (VAS 5234)

• Torque Wrench (5-50 Nm) (V.A.G 1331)

Removing

- On vehicles with a coded radio, note the code. Retrieve it if necessary.

- Disconnect the battery.

- Remove the battery.

- Remove the battery tray.

- Place sufficient lint free cloths in the area of the engine and transmission.

- Extract as much brake fluid as possible from the brake fluid reservoir. Use the brake charger/bleeder unit (VAS 5234) or (V.A.G 1869/4).

with a Manual Transmission

- Disconnect the clutch slave cylinder return hose - B - and secure it out of the way or clamp it off with a commercially available tool and then remove it.






Continuation for All

- Disconnect the connector - A - from the brake fluid level warning switch.

- Disconnect the connector - C - from the brake lamp switch.

- Remove the brake fluid reservoir, press the engagement straps toward the outside at the reservoir and simultaneously pull the brake fluid reservoir out of the plugs.






- Remove the brake lines - 1 - from the master cylinder. Seal off the brake lines with plugs from the repair kit 1H0 698 311 A.

- Remove the nuts - 2 - from master cylinder.

- Remove the heat shield, if equipped.

- Carefully take the master cylinder out of the brake booster.

Installing

- Install in the reverse order of removal.

Observe the following points when installing:

- When installing the master cylinder to the brake booster, make sure that the push rod is correctly located in the master cylinder.

- Bleed the brake system. Refer to => [ Brake System, Bleeding ] Service and Repair.