Clutch Slave Cylinder: Service and Repair

21 52 510 Removing and installing or replacing clutch slave cylinder

Special tools required:
- 13 3 010

Note: After completing work, bleed clutch hydraulic system.

Important From 08.06 a plastic clutch slave cylinder is installed in the E81, E87, and E9X.
Important notes on installation are described in the work step





Seal supply hose to clutch master cylinder with special tool 13 3 010.
Note: Illustration shows E46





Remove transmission underbody protection if necessary.
Release union screw (1) on hydraulic line.
Release nut (2) and remove hydraulic line (3) with bracket.

Installation:
Tightening torque 21 52 1AZ

Note: Illustration similar
Version with throttle valave, tightening torque 21 52 12AZ





Release nut and remove clutch slave cylinder.

Installation:
Tightening torque 21 52 5AZ

Important!
N47 with H-transmission only
Clutch slave cylinder must not rest at the side on the transmission.
Failure to comply with this instruction may result in leaks at the clutch slave cylinder.





Installation:
Clean thrust member (1) and contact face on release lever (2)
Lightly grease thrust member (1) at contact face (3).





Important! Spacer between fuel line and pressure hose of clutch slave cylinder must be correctly fitted.