Remove/install poly-V belt tensioning device

AR13.25-P-3200VA

21.2.08

ENGINES 272 in MODEL 171

P13.25-2027-06

Shown on vehicle with transmission 716.664

1 Front engine cover

2 Engine air intake duct

3 Poly-V belt tensioning device

4 Hexagon

5 Drift (diameter 5 mm)

6 Vibration damper

7 Screw

8 Screw

 	Remove/install
1	Open engine hood and raise to vertical position		AR88.40-P-1000V
2	Remove front engine cover (1)	See Remove air filter housing.	AR09.10-P-1150VA

3	Remove left and right engine intake air duct (2)
4	Remove poly-V belt		AR13.22-P-1202VA
5	Lock poly-V belt tensioning device (3)	 Swivel the poly-V belt tensioning device (3) at the hexagon (4) in an anti-clockwise direction (arrow) and lock in place using a drift (5).
6	Detach vibration damper (6) from the coolant pump, to do this, undo the bolt (7)	Vehicles with transmission 716.664
			*BA13.25-P-1002-01P
7	Remove the poly-V belt tensioning device (3) by unscrewing the bolts (8)		*BA13.25-P-1001-01P
8	Unclamp poly-V belt tensioning device (3)	When replacing poly-V belt tensioning device (3)
		 Clamp the poly-V belt tensioning device (3) into the vise, swivel at the hexagon (4) in an anti-clockwise direction (arrow), pull out the drift (5) and release the tension at the poly-V belt tensioning device (3).
		 Installation: The poly-V belt tensioning device (3) can only be installed when locked.
9	Install in the reverse order

 Belt tensioning device

Number	Designation		Engine 272


BA13.25-P-1001-01P	Bolt, poly-V belt tensioning device to timing case cover	Nm	35
BA13.25-P-1002-01P	Bolt of vibration damper to coolant pump	Nm	35