Master Brake Cylinder

Master Brake Cylinder

Special tools, testers and auxiliary items required

• Brake Charger/Bleeder Unit (VAS 5234)

Removing

- Remove the left plenum chamber cover.

- Remove engine compartment seal near of brake booster.

- Remove the left plenum chamber bulkhead.

- Disconnect the connector - 2 - from the brake lamp switch (F) - 1 -.






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

- Place sufficient lint-free cloths in plenum chamber in the area of the brake master cylinder.

- Extract as much brake fluid as possible from brake fluid reservoir using (VAS 5234) or extraction device upgrade kit (V.A.G 1869/4).

- Remove the brake line from the bracket in the plenum chamber.

- Remove the brake lines on the master brake cylinder - A and B -.






- Seal off the brake lines and master brake cylinder using the sealing plugs (1H0 698 311 A) from the repair kit.

- Remove brake master cylinder nuts.

- Carefully take brake master cylinder out of brake booster.

Installing

- Install in reverse order of removal.

Observe the following points when installing:

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

O-ring between master brake cylinder and brake booster is present.

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