Removing and installing bonnet, adjusting bonnet: Audi A4 B6/B7

🧭 Before you start

Fits: Audi A4 B6/B7 (8E)

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• Protective goggles must be worn during sawing process. — Saw open the first third of the cylinder part of the gas strut (measured from the piston rod end of the cylinder).
• With bonnet closed, stop buffers (1) and (2) must rest lightly on lock carrier.
• After adjustment buffers must rest on lock carrier.
• Stop buffers can be used to adjust height of bonnet.
• Coat PU seal with lubricant to make installation easier.

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.

📋 Procedure

1. Prop up and secure bonnet in open position.
2. Using screwdriver, lift retaining springs slightly at both ends of gas strut and unclip gas strut.
3. To install, press gas strut onto ball-head pin and engage.
4. Cylinder end of gas strut is installed on body side.
5. Clamp gas strut in vice in area x = 50 mm.

6. ⚠ Only the section indicated may be clamped in the vice (accident risk!). — Cover area around saw cut with a cloth to catch any fluid which may escape.
7. ⚠ Protective goggles must be worn during sawing process. — Saw open the first third of the cylinder part of the gas strut (measured from the piston rod end of the cylinder).
8. With bonnet closed, stop buffers (1) and (2) must rest lightly on lock carrier.
9. Impact guard (1) for bonnet is pushed in.
10. When installing, screw buffer (3) for height adjustment into bonnet as far as the stop.
11. To adjust height, unscrew far enough for contour to align with wing.
12. After adjustment buffers must rest on lock carrier.
13. Buffers (2) for impact protection are pushed in. [Note: Stop buffers can be used to adjust height of bonnet.]
14. To remove, release fasteners (arrows).
15. Swivel out radiator grille at top and then pull off at bottom. [Note: Coat PU seal with lubricant to make installation easier.]
16. To install, position radiator grille centrally at bottom (observe centring mark) and swivel in in direction of -arrow-.
17. Dimension a = 1.5 ± 0.5 mm
18. Dimension b = 0.7 ± 0.5 mm
19. When installing, make sure you hear radiator grille click into correct position.
20. To remove, unscrew cap nuts (2) and detach arrester (1).
21. When installing, tighten cap nuts to 11 Nm. — 11 Nm (8.1 lb-ft)
22. To remove, unscrew cap nuts (2) and detach arrester (1) from bonnet (3).
23. When installing, tighten cap nuts to 11 Nm. — 11 Nm (8.1 lb-ft)
24. Disengage Bowden cable for bonnet .
25. Unscrew bolts (2) (4x). Tightening torque: 14 Nm — 14 Nm (10 lb-ft)
26. Take out lock (bottom section) (1).
27. To adjust bonnet, move lock (bottom section) up or down as required.
28. When bonnet is closed stop buffer must rest lightly on inner panel.
29. When adjusting headlights, only reposition stop buffer for fine adjustment. Tightening torque: 15 Nm — 15 Nm (11 lb-ft)

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