Remove, install poly V-belt - AR13.22-P-1202GZ (ML500)

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ENGINE 113.964 in MODEL 164.175

Fig 1: Identifying Poly V-Belt Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Removing
	Risk of death caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between the columns of the lifting platform and position the four support plates at the lifting platform support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
	Risk of injury caused by fingers being pinched or crushed when removing, installing or aligning hoods, doors, trunk lids, tailgates or sliding roof.	Keep body parts and limbs well clear of moving parts.	AS00.00-Z-0011-01A
1	Open engine hood		AR88.40-P-1000GZ
2	Remove the left and right intake air duct
3	Remove front engine cover		AR01.10-P-2405GZ
4	Loosen poly-V-belt (1) and remove	To do this turn hexagon (3) at tensioning pulley (2) in an anti-clockwise direction and lock tensioning pulley (2) with pin/drift (4) (diameter 5 mm).
	Checking
5	Inspect belt pulley sections and tensioning device	Check for damage, wear and dirt; replace if necessary.
6	Check guide pulley	Replace if necessary.
			*BA20.10-P-1008-01C
7	Check poly-V-belt (1)
	Check poly-V-belt in visible area for wear		AP13.22-P-1352GZ
	Install
8	Install poly-V-belt (1) and tighten it.	Do not use belt wax or any similar products. Start in numerical order of the relevant running diagram at tensioning pulley (2), refer to: ↓
		Layout diagram of poly-V-belt	AR13.22-P-3902-02GZ
	Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the running engine	Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not grasp hot or rotating parts.	AS00.00-Z-0005-01A
9	Carry out engine test run
10	Close engine hood		AR88.40-P-1000GZ

COOLANT PUMP, COOLANT THERMOSTAT

Number	Designation			Engine 113.964/971
BA20.10-P-1008-01C	Bolt connecting guide pulley to coolant pump housing	M8	Nm	20