Removal and installation of the main brake cylinder

Remove battery. Remove air filter. Remove battery bracket. For vehicles with a radio with coding, check the presence of the code, request if necessary. Remove the connecting hose from the suction pipe. Put a sufficient amount of lint-free rags in the area of the engine and gearbox.



Suck out as much brake fluid as possible from the reservoir using a suction device.

For vehicles with manual gearbox

Disconnect the return hose -B- of the clutch master cylinder from the hydraulic brake reservoir and fasten slightly higher.

Further for all vehicles

If fitted, unplug connector -1- from brake light switch -F-, connector -2- from vacuum sensor -G608- and connector -3- from brake fluid warning sensor -F34-. Disconnect the wiring harness from the brake master cylinder.




Remove screw -1-. Pull hydraulic brake reservoir -2- out of plugs.



Mark brake lines -1-. Disconnect brake lines -1- from brake master cylinder, plug brake lines with plugs from repair kit -1 NO 698 311 A-. Remove nuts -2- from brake master cylinder. If present, remove protective cover. Carefully remove the brake master cylinder from the brake booster.

Installation

Installation in reverse order. When installing, pay particular attention to the following:

Note: Additional work must be carried out when disconnecting and connecting the battery cable to earth.

When assembling the master brake cylinder with the brake booster, pay attention to the correct position of the pusher in the master brake cylinder. Remove air from the brake system.

Tightening torques