Remove/install poly-V belt · ar1322s1202s · Mercedes-Benz WIS

AR13.22-S-1202S

Remove/install poly-V belt

16.7.09

ENGINES 112, 646 in MODEL 639

ENGINES 646 in MODEL 636

S13.22-4502-06

Shown on ENGINE 646

1 Poly-V-belt

S13.22-4503-06

Shown on engine 112

1 Poly-V-belt

Modification notes

20.8.08	AS reference inserted		AS00.00-Z-0010-01A
	"Lift/jack up vehicle" added	Step 3

	Removing
 Danger!	Risk of injury caused by pinching or crushing when working on springs or spring bodies that are under tension	Use only approved tensioning devices; shield off hazard area if necessary. Inspect special tools for damage and proper operation (visual inspection). Wear protective gloves.	AS00.00-Z-0001-01A
 Danger!	Risk of death caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer.	AS00.00-Z-0010-01A
1	Remove air filter housing		AR09.10-S-1150S
2	Lay coolant hose to the side.	Only with engine 112
		 Unclip coolant hose of radiator to thermostat housing from bracket and clamp behind oil filter housing.
3	Lift/jack up vehicle		AR00.60-S-1000S
	Special instructions for lifting and supporting vehicle		AH00.60-N-0100-01A
4	Detach front lower engine compartment paneling	Only model 636, Model 639.7/8 as of vehicle identification number (VIN) 055347	AR61.20-S-1105-02S
5	Loosen poly-V-belt (1)	 Detension poly-V belt (1) from below for engine 646.
		Engine 646	AR13.22-S-3902-01SD
		Engine 112	AR13.22-S-3902-01SV
	Pin for locking poly-V belt tensioning device		WF58.50-S-1325-02S
6	Remove poly-V-belt (1)	 When carrying out further operations on the engine or timing case cover, relieve pressure on tensioning device. Inspect belt pulley sections and tensioning device for damage and dirt, replace if necessary.
	Check poly-V belt for wear and damage		AP13.22-S-1351A
	Install
7	Fit on poly V-belt (1)	 Do not use belt wax or any similar products. Fit on poly-V belt (1), beginning at the tensioner pulley.	AR13.22-S-3902-02S
8	Tension poly-V belt (1)	 Tension poly-V belt (1) from below for engine 646.
		Engine 646	AR13.22-S-3902-04SD
		Engine 112	AR13.22-S-3902-04SV
	Pin for locking poly-V belt tensioning device		WF58.50-S-1325-02S
9	Install front lower engine compartment	Only model 636, Model 639.7/8 as from VIN 055347	AR61.20-S-1105-02S
10	Clip coolant hose into the bracket	Only with engine 112
11	Install air filter housing		AR09.10-S-1150S

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