Removing and installing auxiliary air heater Air Top 3500 — AUDI

🧭 Before you start

Fits: VW Transporter T5 (7H), VW Transporter T6 (7E), VW Transporter T6 (7F)

Don't miss

• Observe tightening sequence of bolts when installing. Starting with position 1 to 6.
• Do not remove bolts (1) completely.
• Only version Air Top 3500 is factory installed in Transporter 2004 ►.Date of first use is entered on lower part of manufacturer's plate.The heat exchanger can be used for 10 years and must be replaced after date has expired.

📋 Procedure

1. Remove rear right step insert. General body repairs, interior68Interior equipment; Equipment; Removing and installing rear step insert.
2. Remove bolts (1 to 6) from air duct. [Note: Observe tightening sequence of bolts when installing. Starting with position 1 to 6.]
3. Remove the right underbody cover 50.
4. Remove cover (1).
5. Separate connectors (1) from auxiliary air heater.

6. ⚠ Danger of fuel escaping.The fuel system is pressurised.Before opening the system, wrap a cloth around the connection. Then release pressure by carefully loosening the connection. — Separate fuel line (arrow) from auxiliary air heater and seal fuel line.
7. Loosen clips (4).
8. Remove bolts (1). [Note: Do not remove bolts (1) completely.]
9. Remove bolts (2).
10. Remove auxiliary air heater (3) as shown in figure (A). [Note: Only version Air Top 3500 is factory installed in Transporter 2004 ►.Date of first use is entered on lower part of manufacturer's plate.The heat exchanger can be used for 10 years and must be replaced after date has expired.]
11. Remove right underbody cover General body repairs, exterior66Underbody covers; Assembly overviews.
12. Remove cover (1).
13. Separate connectors (1) from auxiliary air heater.
14. ⚠ Danger of fuel escaping.The fuel system is pressurised.Before opening the system, wrap a cloth around the connection. Then release pressure by carefully loosening the connection. — Separate fuel line (arrow) from auxiliary air heater and seal fuel line.
15. Remove exhaust system .
16. Loosen clip to air intake silencer at auxiliary air heater.
17. Release clips or cable ties on connecting pieces (1) to air ducts and push them in direction of (arrow).
18. Unscrew collar nuts (3).
19. Remove auxiliary air heater (1) from bracket (2).

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