Brake Master Cylinder, Removing and Installing

Brake master cylinder, removing and installing

Special tools, testers and auxiliary items required





- Hose clamps 3094

Removing
- Obtain radio code on vehicles with coded radio.
- Disconnect battery.





- Disconnect intake hose - 1 - and connectors - 2 - from mass air flow (MAF) sensor.
- Remove bolts - 3 -, - 4 - and - 5.
- Remove air cleaner completely.
- If part of the equipment, remove protective housing for relays from cable channel.
- Lay out sufficient lint free clothes in area of plenum chamber, engine and transmission.
- Draw off as much brake fluid as possible from brake fluid reservoir using a suction bottle.
- Clamp clutch master cylinder supply hose using hose clamp 3094.
- Pull off clutch master cylinder supply hose.
- Pull connector off floating warning indicator sensor.

Vehicles with ABS/EDL/ASR/ESP





- Disconnect connectors - arrows - off the brake pressure sensor - a - and - b - .

Continued for all vehicles
- Disconnect brake lines on brake master cylinder and seal brake lines with plugs from Repair kit 1 HO 698 311 A.
- Remove nuts from brake master cylinder.
- Carefully remove brake master cylinder from brake booster.

Installing
- Installation is carried out in reverse sequence of removal.

Observe following points when installing:
- When installing the brake master cylinder and brake booster unit, ensure that the push rod is correctly located in the brake master cylinder.
- After installing, bleed the brake system.
- Bleed clutch.
- Start basic settings.

Torque settings: