Brake Master Cylinder: Service and Repair

Brake master cylinder
Special tools and equipment required





^ 3094 Hose clamps or equivalent

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





^ Disconnect or connector -1- of Mass Air Flow (MAF) sensor from air filter tube.
^ Remove bolts -2- at air filter -3- and move filter to left side.
^ On vehicles with Diesel engines, remove relay panel above brake booster.
^ Spread sufficient lint-free cloths in area of plenum, and on engine and transmission to catch any escaping brake fluid.
^ Using a bleeder bottle, draw off as much brake fluid as possible from brake fluid reservoir.
^ Clamp clutch master cylinder supply hose with clamp 3094.
^ Remove clutch master cylinder supply hose from reservoir.
^ Disconnect brake fluid level sensor wiring connector.

Vehicles with automatic transmission





^ Disconnect wiring connectors from pressure sensors -a- and -b-.

All vehicles
^ Disconnect brake lines at brake master cylinder and seal with plugs from repair kit, Part No. 1H0698311 A.
^ Remove nuts securing brake master cylinder to brake booster.
^ Remove heat shield if installed.
^ Carefully remove brake master cylinder from brake booster.

Installing
^ Install master cylinder in reverse order of removal.

Observe the following points when installing:
^ When connecting brake master cylinder and brake booster, be sure that push rod is correctly located in brake master cylinder.
^ After installing, bleed brakes.
^ Restore basic setting.