11 28 010 Replacing drive belt for alternator (N63)
Special tools required:
- 11 3 340 .
IMPORTANT:
If contaminated with hydraulic fluid: Replace
drive belt.
Installation note:
If the drive belt is to be reused, mark direction of travel and reinstall drive belt in same direction of rotation.
Necessary preliminary work:
- Remove FAN COWL .
- Release EXPANSION TANK
for charge air cooler from mounting and press forwards.
Coolant hoses do not need to be released.
IMPORTANT:
Belt tensioner is under high initial spring preload.
Slowly and carefully pre-tension belt tensioner (1) in direction of arrow up to stop.
Secure special tool 11 3 340 in dowel hole (2).
Belt tensioner in installation position.
Remove drive belt.
NOTE:
On vehicles which do not have a power steering pump, a deflecting element (3) is fitted in place of the power steering pump.
IMPORTANT:
Belt tensioner is under high initial spring preload.
Put on the drive belt.
Remove special tool 11 3 340 from dowel hole (2).
Slowly relieve tension on belt tensioner (1).
Installation note:
Make sure drive belt is in correct installation position.
Assemble engine.