Operation Check
WARNING: This page is about a different variant/trim than selected.
Required Special Tool:
MB992278: Belt tension release wrench
- Stop the engine from the idle state.
- Remove the radiator condenser tank, and move the radiator condenser tank to a place where it does not interfere with the auto-tensioner check.
- Check that the drive belt is not protruding from the pulley width of the auto-tensioner.
- Remove the drive belt (Refer to << A >> DRIVE BELT REMOVAL
.)WARNING: Always work from above when releasing the tension of the auto-tensioner. When you try to gain access from underneath the vehicle, you will experience difficulty, thus causing the tool to be dropped off.CAUTION: To work at the optimum angle, you must choose a most suitable box-type wrench is applied to the special tool.WARNING: Be sure to set the box-type wrench and the special tool MB992278 to the hexagonal parts securely to prevent the tool from falling off because the tension of the auto-tensioner is high.
- Install special tool MB992278 and a box-type wrench at the optimum angle.
- Check that no binding is present by turning the auto-tensioner in the left and right directions.
- If there are any problems in the procedure 3 or 6, replace the auto-tensioner (Refer to TIMING CHAIN ).
- Install the drive belt (Refer to << A >> DRIVE BELT REMOVAL .)
- Install the radiator condenser tank to the original position.