Replacing Alternator Drive Belt (M52/S52/M52TU/M54/M56)

11 28 010 - Replacing alternator drive belt (M52/S52/M52TU/M54/M56)





Note:
If the drive belt is to be subsequently reused:
Mark direction of travel and reinstall drive belt in same direction of travel.

Necessary preliminary tasks:
- Remove fan clutch with fan impeller
- Remove A/C compressor drive belt Replacing A/C Compressor Drive Belt (M52/S52/M52TU/M54/M56)
- E85/E60: Remove radiator cover
- E85/E60: Remove fan cowl





Remove cap from tensioning roller.





Relieve tension on belt drive.
Remove drive belt.

Important!
Drive belt must be replaced if fouled with hydraulic fluid.

Installation:
Check drive belt for coolant and oil residues, replace if necessary.





Installation:
Check that belt is correctly positioned on belt pulleys.





Version with auxiliary tensioning roller.





Installation:
Locking device of auxiliary tensioning roller must snap into groove on alternator.





Version on E85.





Version on E60/E65.