Removing and installing air supply unit without solenoid valve block — AUDI

🧭 Before you start

Fits: Audi Q7 (4L, 2005–2015)

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• Air pipes (3) to (6) must not be disconnected. — Pull air pipes out of retainer on underbody.

📋 Procedure

1. Position vehicle on lifting platform .
2. Bleed system at front axle using VAS 5051B.
3. Detach underbody trim (right-side) 50.
4. Disconnect intake pipe (1) at connection.
5. Unplug electrical connectors (1) and (2) between air supply unit and body.

6. Remove cable ties (arrows).
7. Unscrew air pipe (2) and then air pipe (1) from solenoid valve block.
8. ⚠ Air pipes (3) to (6) must not be disconnected. — Pull air pipes out of retainer on underbody.
9. Remove nuts (arrows A) for air supply unit.
10. Remove bolts (arrows B) and have a second mechanic support air supply unit together with bracket.
11. Lower front of air supply unit with bracket until air supply unit (1) can be removed.
12. ⚠ It is important to ensure that solenoid valve block (2) is moved as little as possible away from underbody.Also, air pipes must NOT be bent or stretched. — To avoid tension in rubber mountings, tighten nut (A) first, and then nut (B).
13. Install underbody trim (right-side) 50.
14. Set down vehicle on its wheels .

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