Remove/Install Left Guide Pulley For Ancillaries Belt Drive - AR13.20-P-0017W

Engine 276.8 in model 172 

Fig 1: Left Guide Pulley For Ancillaries Belt Drive Components Location - Engine 276.8 In Model 172

Courtesy of MERCEDES-BENZ USA

	Remove
1	Remove poly-V belt		AR13.22-P-1202W
2	Remove screw/bolt (1) of guide pulley (2)
3	Remove guide pulley (2)
	Check
4	Check guide pulley (2) for damage	If damage is present ↓ Replace guide pulley (2).
	Install
5	Mount guide pulley (2)
6	Remove screw/bolt (1) of guide pulley (2)	Screw/bolt, guide pulley to coolant pump	*BA13.25-P-1004-01X
7	Install poly-V belt		AR13.22-P-1202W

BELT TENSIONING DEVICE

Number	Designation		Engine 276
BA13.25-P-1004-01X	Screw/bolt, guide pulley to coolant pump	Nm	35