Remove/install poly-V-belt tensioning device - AR13.25-P-3200QB

WARNING: This page is about a different car, the 2009 Mercedes-Benz CLK350 and 2008 Mercedes-Benz CLK350. However, it is still accessible from the selected car via links, so may be relevant.

ENGINE 272.920 in MODELS 203.052 /252 /752

ENGINE 272.940 in MODELS 203.054 /254, 209.354 /454

ENGINE 272.960 in MODELS 203.056 /256 /756, 209.356 /456

ENGINE 272.970 in MODELS 203.087 /287

ENGINE 272.941 in MODELS 203.092 /292

ENGINE 273 in MODEL 209

Fig 1: Identifying Poly-V-Belt Tensioning Device Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	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
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
1	Open engine hood and raise to vertical position	Model 203	AR88.40-P-1000P
1	Open engine hood and raise to vertical position	Model 209
2	Remove front engine cover (1)	Pull out front engine cover (1) from mounts.
3	Remove fan shroud	Engine 273	AR20.40-P-5000QB
4	Remove poly-V-belt		AR13.22-P-1202QB
5	Lock poly-V-belt tensioning device (2)	Swivel poly-V-belt tensioning device (2) at hexagon (2a) in an anti-clockwise direction and lock in place using drift (3).
6	Remove bolts (2b) and poly-V-belt tensioning device (2)		*BA13.25-P-1001-01P
7	Unclamp poly-V-belt tensioning device (2)	Only when replacing the poly-V-belt tensioning device (2). Clamp poly-V-belt tensioning device (2) in a vise, swivel at hexagon (2a) in an anti- clockwise direction, pull out drift (3) and slacken poly-V-belt tensioning device (2). Installation: The poly-V-belt tensioning device (2) can only be installed when locked.
8	Install in the reverse order

BELT TENSIONING DEVICE

Number	Designation		Engine 272	Engine 273
BA13.25-P-1001-01P	Bolt, poly-V-belt tensioning device to timing case cover	Nm	35	35