BMW 5251 Service Manual page 612

Driveshaft
Repair kits for the universal joint are not available for BMW
driveshafts. A worn or damaged universal joint usually require
replacement of the driveshaft.
The driveshaft is balanced to close tolerances. Whenever it is
to be removed or disassembled, the mounting flanges and
driveshaft sections should be marked with paint or a punch
before proceeding with work. This will ensure that the drive-
shaft can be reassembled and installed in exactly the original
orientation.
1. Rear section of drive shaft
2. Hex bolt, M I 2
x
1.5 x 25
3.
Knurled bolt
4. Clamp
5. Reinforcement
6. Seal
7. Constant velocity joint
8. Circlip
9.
Hex nut
10. Hex bolt, M12x 1 . 5 ~ 5 8
11. Centering sleeve
12. Flexible disk
13. Self-locking hex nut
14. Front section of driveshaft
15. Center bearing
16. Dust cover (some models)
17. Spacer (some models)
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