Removing and installing cylinder head cover, bank 1 (right-side) — AUDI

🧭 Before you start

Remove the engine cover, rear noise insulation, rail and injectors. Clear G40, the vacuum hose, G505 bracket, breather hose, intake connecting pipe, lifting eye and right-side coolant pipe, then unplug the glow plugs and slacken the cover fasteners in sequence 11 to 1. Clean the faces, apply sealant at the joints to the timing chain cover, fit the cover with new bolts, refit injectors and rail, and leak-check the fuel system.

Fits: Audi A6/A7 C7 (4G, 2011–2018)

• Special tools named: 3094
• Renewed: o-rings

Don't miss

• Slacken the cover bolts and nuts in sequence 11 to 1.
• Renew bolts tightened with a specified angle, and the O-rings; renew the gasket if damaged.
• Check camshaft tightening torque while the cover is off.
• Apply sealant only at the head-to-timing-cover joints, nozzle cut to about 2 mm, within its use-by date.
• Check the fuel system for leaks after refitting the rail and injectors.

Written for this job from the workshop steps below · TorqFix editorial.

🔧 Engine codes this applies to

📋 Procedure

1. Remove engine cover panel .
2. Remove noise insulation (rear) General body repairs, exterior66Noise insulation; Removing and installing noise insulation.
3. Remove high-pressure reservoir (rail) .
4. Remove injectors .
5. Unplug electrical connector at Hall sender G40(item 1).

6. Detach electrical connectors (2) from bracket and move electrical wiring harness clear at cylinder head cover using removal lever80 - 200.
7. Press release tabs on both sides and detach vacuum hose (1).
8. Remove bolt (2).
9. Move vacuum hose (arrow) clear and move to one side.
10. Unplug electrical connector (2).
11. Release catch (arrow) and detach bracket with pressure differential sender G505(item 1) from connection.
12. Press release tabs on both sides and disconnect crankcase breather hose (2).
13. Unplug electrical connector (3) and move wiring clear.
14. Unscrew bolts (arrows) and detach intake connecting pipe (1).
15. Remove bolt (arrow) and detach engine lifting eye (1).
16. Clamp off coolant hoses with hose clamps 3094.
17. Lift retaining clip (3), release hose clips (1 and 2) and detach coolant hoses.
18. Unscrew bolts (arrows) and coolant pipe (right-side) from longitudinal member. [Note: For illustration purposes, the installation position is shown with the engine removed.]
19. Unplug electrical connectors on glow plugs for cylinder bank 1 (right-side).
20. Slacken bolts and nuts in the sequence (11 ... 1).
21. Remove bolts and nuts and take off cylinder head cover. [Note: After removing, renew bolts tightened with specified tightening angle.Renew O-rings after removing.Renew gasket for cylinder head cover if damaged.]
22. Check tightening torque of camshafts .
23. Clean surfaces; they must be free of oil and grease. [Note: Note the use-by date of the sealant.]
24. Cut off nozzle of tube at front marking (nozzle ∅ approx. 2 mm).
25. Apply sealant bead (arrows) at each joint between cylinder head and timing chain cover (top right).
26. Tighten cylinder head cover bolts .
27. Electrical connections and routing .
28. Install injectors .
29. Install high-pressure reservoir (rail) .
30. Check fuel system for leaks .
31. Install engine cover panel .

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