Slave Cylinder: Service and Repair

Replacing Clutch Slave Cylinder (S6S 420G SMG)

Note:
After completing work:
Proceed in accordance with test program, refer to "Service Functions" in DIS Tester.
Read out fault memory and clear fault entries.
Check fluid level in hydraulic system.

Depressurize hydraulic system. Procedures





Remove rear underbody protection.

Detach cable plug (1).

Unclip cable.





Release union screw (1) on hydraulic line.






Tightening torque, 21 52 7AZ.

Clip hydraulic line (2) out of retaining fixture (3).

Release nuts and remove clutch slave cylinder (4).






Tightening torque, 21 52 5AZ.

Installation:
Replace retaining fixture (3).






Installation:
Clean pressure piece (1) and contact surface on release lever (2).
Lightly grease pressure piece (1) at contact surface (3).
Grease, refer to BMW Service Operating Fluids.