Toothed Belt Drive, Assembly Overview

Toothed belt drive, assembly overview





Note: Before removing toothed belt, note direction of rotation with chalk or felt-tip marker. Reversing the direction of rotation of a run-in belt can destroy the belt.

1. 45 Nm
^ Self-locking
^ Always replace

2. Washer
3. 45 Nm
4. Tensioner roller
5. Tensioning lever
^ Insert shim item -6-

6. Washer
^ For tensioner lever

7. Toothed belt
^ Before removing, note direction of rotation using chalk or felt-tip marker
^ Check for wear

8. 45 Nm
9. Exhaust camshaft, toothed belt gear
^ For cylinder bank 1 (right) with vibration damper With camshaft adjuster Identification Exhaust

10. Intake camshaft, toothed belt gear For cylinder bank 1 (right)
^ With camshaft adjuster
^ Identification Intake

11. 10 Nm
^ Self-locking
^ Always replace

12. Bracket
^ For idler roller

13. 10 Nm
^ Self-locking
^ Always replace

14. Toothed belt guard, rear right
15. Idler roller
16. 10 Nm
17. 10 Nm
18. Mechanical coolant pump

19. Gasket Always replace
20. Intake camshaft, toothed belt gear For cylinder bank 2 (left)
^ With camshaft adjuster
^ Identification Intake

21. Toothed belt guard, rear left
22. 10 Nm
^ Self-locking
^ Always replace

23. Exhaust camshaft, toothed belt gear
^ For cylinder bank 2 (left) with vibration damper
^ With camshaft adjuster
^ Identification Exhaust

24. 100 Nm
^ Use T40030 camshaft adjuster gauge when loosening or tightening

25. O-ring
^ Always replace

26. Cap
27. Snap ring
28. Diamond disc
^ For toothed belt gear
^ Replace after removing toothed belt

29. Eccentric pulley
30. 45 Nm
31. Toothed belt gear for crankshaft
^ Replace diamond disc item -28- after removal
^ Contact surface between toothed belt gear, diamond disc and crankshaft must be free of oil.
^ Installation only possible in one position
^ Version dependent with/without thrust washer.

32. Central bolt, 200 Nm plus an addition 180° (1/2 turn)
^ Always replace
^ Do not oil additionally
^ Use T40026 locking pin when loosening or tightening
^ Thread in T40026 locking pin

33. Toothed belt tensioner
34. 10 Nm