Brake Master Cylinder

Brake Master Cylinder

Special tools, testers and auxiliary items required

• Sealing Tool (T10249)

• Torque Wrench (V.A.G 1331)

• Brake filling and bleeding equipment (VAS5234)

• Engine Bung Set (VAS 6122)

Removing

- Remove the battery and 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 using (VAS 5234).

On vehicles with DSG transmission

- Remove the selector lever cable from the ball head and from the cable mounting bracket.

- Remove the selector lever from the selector shaft on the transmission.

With Manual Transmission






- Remove the star-shaped washers - arrows -.

- Fold the bulkhead damper - 1 - forward in - direction of arrow -.






- Remove the supply hose - 1 - to the clutch master cylinder - 2 - from the brake fluid reservoir.






- Use the (T10249) - 1 - to seal the supply hose - 2 - for the clutch master cylinder - 3 -.

- Seal off the supply hose - 2 -.

- Seal off the connection for the supply hose to the clutch master cylinder - 2 - using the (VAS 6122).

Continuation for all vehicles






- Disconnect the connector - 1 - from the brake fluid level warning switch (F34).

- Remove the brake line tube fitting - 2 -.

- Seal off the brake line with the plug (1H0 698 311 A).

- Remove the fastener - 2 - in - direction of arrow -.






- Carefully remove the brake fluid reservoir - 1 - from the plug.

- Release and disconnect the connector - 1 - from the brake lamp switch (F) - 2 -.






- Unclip the cable bracket from the master brake cylinder.

- Remove the brake line tube fitting - 2 - from the master brake cylinder - 1 -.






- Seal off the brake line with the plug (1H0 698 311 A).

- Unscrew the threaded connection - arrows - on the brake master cylinder - 1 -.

- Carefully take brake master cylinder out of brake booster.

Installing

Install in reverse order of removal. Note the following:

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

Coat the plugs with brake fluid before pushing the brake fluid reservoir into the master brake cylinder.

- Battery, installing and connecting, refer to.

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

Tightening Specification