Clutch Master Cylinder: Service and Repair

21 52 500 Removing and installing / replacing the clutch master cylinder

Necessary preliminary tasks:
^ Remove trim for instrument panel at bottom left

Note: After completing work, bleed clutch hydraulic system.





Draw off brake fluid up to supply hose of clutch hydraulic system (1). For this purpose, use only a vacuum pipe that is exclusively used for removing brake fluid.
Detach supply hose (1) from expansion tank.





Press pin (1) out of clutch pedal with a short, thin screwdriver.

Installation:





The pin is coded by a straight surface (1).
The coding points upwards.
Screw pin with coding upwards. Turn slightly until coding snaps into place. Press in pin until engaged (2).





Unfasten screws.





Detach retainer (1) with a screwdriver (2).

Note: Do not soil the footwell carpet with brake fluid.

Detach clutch master cylinder (3) from hydraulic line and remove with supply hose.





Lever out shift element (1) from clutch master cylinder (2) with screwdriver. Release plug connection (3) and disconnect plug (4) from shift element (1).

Installation:





Shift element is secured against incorrect installation. Shift element must snap audibly into place.