Genuine BMW M3 Clutch Master Cylinder

BMW M3 Clutch Master Cylinder Parts Questions & Answers

• Input Cylinder Clutch
  21-52-1-156-000
  Q: How to replace the clutch master cylinders?

  A: The clutch master and slave cylinders should be replaced as a pair. If one unit falls, the other usually will fail soon after. Start by removing the necessary trim panel or carpet. Disconnect the pushrod at the clutch pedal. Remove the cap on the reservoir tank. On some vehicles, there is a clutch master cylinder reservoir, while on others there is a common reservoir shared with the brake master cylinder. Remove the float container, if equipped. Remove the screen and remove enough brake fluid from the tank until the level drops below the connection for the filler pipe. Remove the lower/left instrument panel trim. Then, remove the retaining nut from the end of the master cylinder actuating rod where the boll passes through the pedal mechanism. Disconnect the line to the slave cylinder and the fluid fill line going to the top of the master cylinder. Remove the retaining bolls and remove the master cylinder from the firewall. To install, position the clutch master cylinder, ensuring all bushings remain in position. Tighten the master cylinder mounting bolls to 6.5 ft. lbs. (9 Nm). Tighten the fluid connections to 12 ft. lbs. (16 Nm). Finally, fill and bleed the system.