Overview / Cylinder Bank 1 (RH)

Cylinder heads, removing and installing





Note:
^ Secure the engine in the engine and transmission stand VAS6095 when repairing.
^ If you install an exchange cylinder head, all contact surfaces between bearing elements, roller rocker fingers and cam running surfaces of camshaft must be oiled before installing the cylinder head cover.
^ The plastic protectors installed to protect the open valves must only be removed immediately before installing the cylinder head.
^ When replacing the cylinder head the complete amount of engine coolant must be replaced.
^ Cylinder bank 1 is located on the right-hand side when looking toward the front.
^ Cylinder bank 2 is located on left-hand side when looking toward the front.

I - Cylinder bank 1.
II - Cylinder bank 2.
Checking compression pressures, Refer to Engine Oil Pressure, Testing and Inspection.





Cylinder bank 1

Note:
^ Cylinder bank 1 is located on the right-hand side when looking toward the front.
^ Removing and installing parts of the chain drive system, Refer to Timing Chain, Service and Repair.

1. Oil seal
^ For valve 1 for camshaft adjustment -N205 item 19 (intake) and camshaft adjustment valve -1- (exhaust) -N318-, item 20
^ Replace if damaged or leaking
^ Replace
2. Bracket
^ For wiring harness
3. 8 Nm
4. Exhaust camshaft adjuster
^ Identification: B 1 and AS
^ Rotate engine only when camshaft adjuster is installed
^ Installing, Adjusting valve timing, Refer to Intake/Exhaust Valve, Adjusting
5. 60 Nm - 1/4 turn (90°) further
^ Replace
^ Contact surface of sender wheel must be dry around bolt head when assembled
^ To remove and install, counter-hold with 32 mm open jaw wrench on camshaft
5. Removing and installing camshafts
6. 10 Nm
^ Follow installation instructions and sequence when loosening and tightening, Adjusting timing, Refer to Intake/Exhaust Valve, Adjusting
7. Hall sender
^ , Refer to Powertrain Management, Ignition System, Service and Repair
^ Before removing, mark connector belonging to component
8. 10 Nm
9. Seal
^ Replace if damaged or leaking
10. Chain tensioner, 40 Nm
^ For camshaft roller chain item 15
^ Only rotate engine when chain tensioner is installed
11. Sealing nipple, 4 Nm
^ Installed according to version of cover piece
12. Cover
^ Can only be removed and installed with engine removed
^ Can be removed and installed with cylinder head installed
^ Before removing, remove chain tensioner Item 10
^ With O-ring for sealing oil gallery, item 14
^ Installing, Adjusting valve timing, Refer to Intake/Exhaust Valve, Adjusting
13. Cylinder head gasket
^ If replaced replace complete amount of engine coolant
14. O-ring
^ For oil channel seal
^ Replace
^ Oil before assembling
15. Camshaft roller chain
^ Mark direction of rotation before removing (installation position)
^ Installing, Adjusting valve timing, Refer to Intake/Exhaust Valve, Adjusting
16. Cylinder head
^ Check for distortion
^ If replaced replace complete amount of engine coolant
17. Intake camshaft adjuster
^ Identification: B1 and E7
^ Rotate engine only when camshaft adjuster is installed
^ Installing, Adjusting valve timing, Refer to Intake/Exhaust Valve, Adjusting
18. Guide rail
^ For camshaft roller chain item 15
^ Clipped to control housing
19. Valve 1 for camshaft adjustment-N205
^ For intake camshaft
^ Before removing, mark connector belonging to component
20. Camshaft adjustment valve -1- (exhaust) - N318
^ Before removing, mark connector belonging to component
21. Cylinder head bolt
^ Replace
^ Follow installation instructions and sequence when loosening and tightening.
22. Seal for cylinder head cover
^ Replace if damaged or leaking
^ Note installation position
23. Cylinder head cover
^ Removing and installing, Refer to Cylinder Head Cover (Cylinder Banks 1 and 2), Removing and Installing
^ Replace if damaged
24. 10 Nm
^ With spacer sleeve and seal
^ Replace seal if damaged
^ Observe sequence when tightening, Refer to Cylinder Head Cover (Cylinder Banks 1 and 2), Removing and Installing

Fig. 1 Checking cylinder head for distortion
Special tools and equipment





^ Straight edge
^ Feeler gauges
^ Max permissible distortion: 0.05 mm

Fig. 2 Installing camshaft timing adjustment valve seal
Special tools and equipment





^ 3378 Fitting sleeve
^ 3253/6 From assembly device 3253

Installing

Note: Do not lubricate seal.

^ Install seal with fitting sleeve 3378 in cylinder head cover -1- and pull in flush with with fitting sleeve 3253/6 from assembly device 3253.