Remove/Install Poly-V-Belt Tensioning Device - AR13.25-P-3220MMV

Engine 276.8 in model 205 

Engine 276.8 in model 253 

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove poly-V belt and lock clamping device (1)		AR13.22-P-1202MMV
2	Remove screw/bolts (6) for tensioning device (1)	Screw/bolt, poly-V belt tensioning device to timing case cover	*BA13.25-P-1001-01X
3	Remove clamping device (1) upwards
	Check
4	Check clamping device (1) for damage	If damage is present ↓ Replace clamping device (1).
5	Clamp clamping device (1) into vise	When replacing the clamping device (1).
6	Swivel clamping device (1) on hexagon (2) clockwise, remove drift (3) and de-tension clamping device (1)	When replacing the clamping device (1). : The clamping device (1) can only be installed when locked.
7	Install in the reverse order

BELT TENSIONING DEVICE

Number	Designation		Engine 276
BA13.25-P-1001-01X	Screw/bolt, poly-V belt tensioning device to timing case cover	Nm	20