BMW «518», «520»
Remove the clutch release fork retaining spring.
Remove the clutch release bearing assembly with the yoke moving forward inside the casing.
Remove the clutch release bearing from the fork, held at the ends of the fork by compression springs.
Check Height «H» (see photo) clutch release bearing, which should be within 47.5±0.4 mm.
Clean the parts and check their condition. Lubricate the mating surfaces of the clutch release bearing with the fork with Molykote Longterm 2 grease, put grease into the internal recess of the clutch release bearing.
Reinstall the fork assembly with the clutch release bearing in the clutch housing, install the fork retaining spring.
BMW «525», «528»
Remove the lower clutch housing cover and clutch housing.
Disconnect the retaining spring of the fork and clutch release bearing and remove the fork assembly with the bearing.
Check Height «H» clutch release bearing, which should be within 52.0±0.5 mm.
Lubricate the contact surfaces of the fork with the clutch release bearing and the fork support bushings.
Installation is carried out in the reverse order of removal, ensuring the correct position of the clutch release fork spring.