Camshaft, Lifters and Push Rods: Locations

Valvetrain, assembly overview





1. 50 Nm plus an additional 180° (1/2 turn)
^ Use Retainer 3036 to loosen and tighten
2. Camshaft sprocket
^ Use Retainer 3036 to loosen and tighten
3. Seal
4. Cylinder head
5. Valve guide
6. Valve stem seal
7. Valve spring
8. Top valve spring retainer
9. Valve keepers
10. Hydraulic valve play balancing element
^ Do not interchange
^ Lubricate contact surface
11. Fitted key
^ Check for secure seat
12. Exhaust camshaft
^ Check radial clearance using Plastigage(R) (roller cam follower removed) wear limit: 0.1 mm
^ Run-out: max. 0.035 mm
13. Bearing bracket
^ With integrated camshaft bearings
^ Clean sealing surface, reworking is not permitted.
^ Remove old sealant residue.
14. 8 Nm plus an additional 90° (1/4 turn)
^ Replace
15. Camshaft adjuster
16. 20 Nm plus an additional 45° (1/8 turn)
^ Use Retainer 3036 to loosen and tighten
17. Intake camshaft
^ Check radial clearance with Plastigage(R), Wear limit: 0.1 mm
^ Run-out: max. 0.035 mm
18. Chain tensioner
^ Before removing, secure with Locking Pin T10115
19. Drive chain
^ Check for wear
20. 10 Nm
21. 10 Nm
22. Camshaft Position (CMP) sensor G40
23. Exhaust valve
^ Do not rework, only lapping is permitted
24. Intake valve
^ Do not rework, only lapping is permitted
25. Cap
^ Replace
^ Removing: Insert a screwdriver into center of cap and pry out.
^ Installing: Do not use sealant, press in 1 to 2 mm using pressure piece 3334.