21 52 010 Removing and installing or replacing clutch slave cylinder

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2019 MINI Cooper, 2018 MINI Cooper, 2017 MINI Cooper, 2016 MINI Cooper, and 2015 MINI Cooper. However, it is still accessible from the selected car via links, so may be relevant.

Preliminary work needed:

Remove front UNDERBODY PROTECTION .

Removal:

IMPORTANT: If possible, do not shift the piston rod of the clutch slave cylinder.
A movement of the piston rod caused by the removal procedure will lead to a slight leakage of fluid. This leakage of fluid does not mean that the clutch slave cylinder is damaged.
Replacement therefore not necessary!

Draw off brake fluid until level is below connection (2) to clutch master cylinder.

Fig 1: Drawing Off Brake Fluid Connection To Clutch Master Cylinder

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) of clutch slave cylinder.

Remove clutch slave cylinder (2).

Release line connection (3) and disconnect line (4).

IMPORTANT: Collect the leakage brake fluid in a suitable collecting vessel.

Fig 2: Clutch Slave Cylinder, Line Connection, Line And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Clean synchronizing key (1) and contact surface on release lever (2).

Lightly grease synchronizing key (1) on contact surface (3).

Grease, refer to OPERATING FLUIDS

Fig 3: Grease Applying Area On Contact Surface Of Synchronizing Key

Courtesy of BMW OF NORTH AMERICA, INC.

Install line connection (3) with line (4).

Install clutch slave cylinder (2).

Parts: Replace screws (1).

Tighten down screws (1) of clutch slave cylinder.

Tightening torque 21 52 1AZ .

NOTE: After completing work, VENT CLUTCH HYDRAULIC SYSTEM .

Fig 4: Clutch Slave Cylinder, Line Connection, Line And Screws

Courtesy of BMW OF NORTH AMERICA, INC.