Servicing air spring strut: Audi A8 D4

🧭 Before you start

Fits: Audi A8 D4 (4H, 2010–2017)

• Special tools named: torque wrench

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• The bolt connection between the coupling rod and lower transverse link is under tension.Press the lower transverse link slightly downwards when removing bolt (1) for the reason above.
• Before tightening hose clip, ensure that boot is not twisted; straighten boot if necessary.
• When installing the new dust boot, special care must be taken to prevent it from being damaged. — Secure bolt (1).

📋 Procedure

1. Position vehicle on lifting platform .
2. Remove wheel.
3. Bleed air spring struts of rear axle by starting appropriate program on .
4. ⚠ Clean the air spring strut thoroughly in the area of the dust boot to prevent contamination of internal parts. — Remove bolt (1) and detach bracket (2) with pipes/wiring.
5. Unscrew bolt (1) for coupling rod.

6. Remove bolt (1). [Note: The bolt connection between the coupling rod and lower transverse link is under tension.Press the lower transverse link slightly downwards when removing bolt (1) for the reason above.]
7. Remove bolt (1) and use suitable lever to press air spring strut (2) off wheel bearing housing.
8. ⚠ The connection between the air spring strut and wheel bearing housing is under tension.There is a risk of injury when pressing the air spring strut off the wheel bearing housing, as the wheel bearing housing will recoil rapidly upwards. — Mark installation position of bracket.
9. Release hose clip (arrow) and remove.
10. Press air spring strut in direction of travel and pull dust boot off downwards.
11. Take dust boot (1) out between wheel bearing housing and air spring strut (arrow).
12. Check rubber boot (1) for damage.
13. Check piston and remove any scratches with very fine sandpaper. [Note: Before tightening hose clip, ensure that boot is not twisted; straighten boot if necessary.]
14. ⚠ When installing the new dust boot, special care must be taken to prevent it from being damaged. — Secure bolt (1).
15. Raise suspension to reference position .
16. Tighten new hose clip.
17. Apply clamp tensionerV.A.G 1682(1) as shown in illustration.
18. Tighten clip by turning spindle with torque wrench (2) (take care to keep tool straight).
19. Fit wheel.
20. Secure wheel Wheels and tyres44.

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