Brake Master Cylinder

Brake Master Cylinder

Special tools, testers and auxiliary items required

• Hose clamps up to 25 mm dia. (3094)

Removing

- Note radio code (for vehicles equipped with coded anti-theft radio).

- Disconnect battery.

- Disconnect intake air duct - 1 - and connector - 2 - from Mass Air Flow (MAF) sensor (G70).





- Remove bolts - 3 -, - 4 - and - 5 -.

- Remove complete air filter.

- If present, remove protective housing for relay from cable channel.

- Place sufficient lint-free cloths around plenum chamber, engine and transmission.

- Draw as much brake fluid as possible from brake fluid reservoir using a bleeder bottle.

- Clamp return hose of clutch master cylinder shut using hose clamp (3094).

- Disconnect supply hose for clutch master cylinder.

- Disconnect harness connector for brake fluid level warning switch.

With ABS/EDL/ASR/ESP

- Disconnect connectors - arrows - of brake pressure sensors - a - and - b -.





Continuation for All

- Disconnect brake lines from brake master cylinder and seal brake lines using plugs from repair kit (1H0 698 311 A).

- Remove nuts from master brake cylinder.

- Carefully remove brake master cylinder from brake booster.

Installing

- Installation is in reverse order of removal.

Pay particular attention to the following:

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

- After installing, bleed brake system:

• Vehicles with or without ABS Mark 20 IE up to 09.00 => [ Brake System Bleeding General Information ] Brake System Bleeding General Information.

• Vehicles with ABS Mark 60 from 10.00 => [ Brake System Bleeding General Information ] Brake System Bleeding General Information.

- Bleed clutch.

- Initiate basic setting.