Toothed Belt Overview

Toothed Belt Overview






1 Toothed Belt

• Mark the direction of rotation before removing.

• Check for wear.

• Do not kink.

• Removing, installing and tensioning. Refer to => [ Toothed Belt ] Toothed Belt.

2 Bolt

• 120 Nm + an additional 90° (1/4) turn.

• Always replace.

• Use the counter support (3415) to loosen and tighten.

• Do not lubricate or grease the threads or collar.

• The additional turn can occur in several stages.

3 Crankshaft Toothed Belt Gear

4 Bolt

• 20 Nm

5 Idler Roller

6 Nut

• 20 Nm + an additional 45° (1/8) turn.

• Always replace.

7 Belt Tensioner

• Remove the engine mount bracket to remove and install. Refer to => [ Engine Mount and Bracket ] Engine Mount and Bracket.

8 Bolt

• 20 Nm + an additional 45° (1/8) turn.

• Always replace.

9 Camshaft Toothed Belt Gear

10 Bolt

• 25 Nm

11 Bolt

• 100 Nm

12 Hub

• Use the camshaft gear counter-holder (T10051) to loosen and tighten.

• To remove, use the puller (T10052).

• Removing and installing, refer to => [ Camshafts ] Service and Repair.

13 Rear Toothed Belt Guard

14 Bolt

• 20 Nm

15 Bolt

• 10 Nm

• Always replace.

16 Idler Roller

17 Bolt

• 50 Nm + an additional 90° (1/4) turn.

• Always replace.

18 Hub

• Use the camshaft gear counter-holder (T10051) to loosen and tighten.

• Use the puller (T40064) to remove.

• Removing and installing, refer to => [ High Pressure Fuel Pump ] High Pressure Fuel Pump.

19 Nut

• 95 Nm

20 High Pressure Fuel Pump Toothed Belt Gear

21 Bolt

• 20 Nm + an additional 90° (1/4) turn.

• Always replace.

22 Coolant Pump

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

23 Bolt

• 15 Nm

24 Upper Toothed Belt Guard

• Installing, refer to => [ Installing the Upper Toothed Belt Guard ].

25 Lower Toothed Belt Guard

26 Center Toothed Belt Guard

27 Bolt

• 10 Nm

• Always replace.

28 Bolt

• 10 Nm + an additional 90° (1/4) turn.

• Always replace.

29 Vibration Damper

• Only possible to install in one position - the bores are offset.

30 Bolt

• 5 Nm

31 Protective Plate

32 Bolt

• 40 Nm + an additional 180° (1/2) turn.

• Always replace.

• Observe the tightening sequence, refer to => [ Engine Mount Bracket to Cylinder Block Bolt Tightening Sequence ] Engine and Transmission Mount Overview.

33 Engine Mount Bracket

• Removing and installing, refer to => [ Engine Mount and Bracket ] Engine Mount and Bracket.

Installing the Upper Toothed Belt Guard





- Make sure the upper toothed belt guard section is clipped to the cylinder head cover correctly.

• The camshaft sprocket is not shown in the illustration.

- Press the upper toothed belt guard in the area with the clips - arrows - against the cylinder head cover until the clips engage with each other. Use a screwdriver to press the guard if necessary.

- Check the clearance between the hub and the upper toothed belt guard.