Genuine BMW Z4 Release Bearing

BMW Z4 Release Bearing Parts Questions & Experts Answers

• Clutch Release Bearing
  21517521471
  Q:

  How to remove and install the release bearing and clutch fork on BMW Z4?

  Posted by Zachary E.

  A:

  To remove the release bearing, first take out the transmission, then pull the bearing forwards and slide it from the guide sleeve in the bell housing. For inspection, spin the release bearing and check for excessive roughness; hold the outer race and attempt to move it laterally against the inner race, replacing the bearing if any excessive movement or roughness is found. It is advisable to replace the release bearing when a new clutch is installed. For installation, clean and lightly apply high-temperature grease to the contact surfaces on the clutch fork and guide sleeve, then slide the bearing into position, ensuring it engages correctly with the clutch fork before reinstalling the transmission. To remove the clutch fork, first take out the release bearing, then slide the fork sideways to disengage it from the retaining spring clip and pivot, pulling it forwards from the guide sleeve. Inspect the release bearing, pivot, and slave cylinder pushrod contact faces for wear, replacing the fork if excessive wear is evident, and check the retaining spring clip for necessary replacement. For installation, slide the clutch fork into position over the guide sleeve, push the end of the fork over the pivot, and ensure the retaining spring clip engages correctly over the end of the clutch fork before reinstalling the release bearing as previously described.

  Answered by BMW Parts Specialist Adrian / Mar 01, 2025