Drive Belt: Testing and Inspection

Checking drive belt

Preliminary work

1. Remove intake manifold (cowl).

Information


ATTENTION: Risk of damage to drive belt!
^ If the drive belt is removed when it is hot, it may become deformed and damaged.
--> Never remove drive belt when it is hot.

Installation Position Of Drive Belt:

WARNING: Danger of injury!
^ The vehicle fans can continue running or start up automatically.
--> The power supply to the radiator fans or the battery must be disconnected before starting to work on the radiator or fans (remove fuse --> 'fuse carrier'). --> 'Work instructions after disconnecting the battery'

Damage symptoms

Note: The following table indicates damage which necessitates replacement.





Checking drive belt


Note: If spark plugs must be changed in the course of maintenance operations, the drive belt should be checked when the spark plugs are removed. The engine can then be cranked easier.

Marking On The Drive Belt:

1. Using chalk, mark the drive belt in the area around the tensioning roller.
2. Turn engine at the vibration damper in the direction of movement using a socket wrench (a/f 27) until the chalk mark is at the same place again. While turning at the crankshaft, check the belt at the deflection rollers for signs of damage.

Subsequent work

1. Fit intake manifold (cowl).