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 Removing Radiator Cover
- E85/E60: Remove fan cowl Service and Repair





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.