Toothed Belt Drive Assembly Overview

Toothed Belt Drive Assembly Overview

• Before removing the toothed belt, mark the running direction with chalk or a felt tip pen. A reversed running direction can cause damage to the belt under operating conditions.





1 Bolt, 10 Nm

2 Mounting Pin

3 20 Nm + 90° (1/4) additional turn

• Always replace.

4 Washer

• For the tensioning roller.

5 Bolt, 40 Nm

6 Tensioning Roller

7 Tensioning Lever

• Insert washer - item 30 -.

8 Bolt, 22 Nm

9 Bolt, 55 Nm

• Always replace.

• Grease the threads and head seating surface.

10 Securing Plate

• Always replace.

• Side with writing "rear hinten" points toward the rear.

11 Right Camshaft Gear

• When removing and installing, remove the toothed belt. Refer to => [ Toothed Belt ] Toothed Belt.

• Remove the gear using the puller (T40001) and the claws (T40001/2).

12 Bolt, 10 Nm

• Install using locking fluid.

13 Right Rear Toothed Belt Guard

14 Idler Roller

15 Pin Bolt, 9 Nm

16 Bolt, 14 Nm

• Strength class 10.9.

17 Coolant Pump

• Removing and installing, refer to => [ Coolant Pump ] Coolant Pump.

18 Gasket

• Always replace.

19 Left Rear Toothed Belt Guard

20 Bolt, 10 Nm

• Install using locking fluid.

21 Nut, 10 Nm

22 Left Camshaft Gear

• When removing and installing, remove the toothed belt. Refer to => [ Toothed Belt ] Toothed Belt.

• Remove using the puller (T40001) and the claws (T40001/2).

23 Securing Plate

• Always replace.

• Side with writing "rear hinten" points toward the rear.

24 Bolt, 55 Nm

• Always replace.

• Grease the threads and head seating surface.

25 Toothed Belt

• Before removing, mark the direction of rotation using chalk or a felt tip pen.

• Check for wear.

• Removing, refer to => [ Toothed Belt ] Toothed Belt.

• Installing, (adjusting valve timing), refer to => [ Toothed Belt ] Toothed Belt.

26 Eccentric Roller

27 Bolt, 45 Nm

28 Crankshaft Toothed Belt Gear

• There must be no oil on the contact surface between the toothed belt sprocket and the crankshaft.

• Only possible to install in one position.

29 200 Nm + 180° (1/2) additional turn

• Always replace.

• Do not add lubricant.

• Use the crankshaft holder (3242) for loosening and tightening.

• Install the crankshaft holder (3242) in the hole for the locking bolt in the upper oil pan, refer to => [ Toothed Belt. ] Toothed Belt.

30 Washer

• For the tension lever.

31 Tensioning Element