Checking operation of fresh air and air recirculation flap control motor V154 — AUDI

🧭 Before you start

Fits: Audi A3 (8P, 2003–2012)

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• If operation is not OK, check the electronics in the heater control unit J65 and actuation of the fresh air and air recirculation flap control motor V154.

📋 Procedure

1. If necessary, remove glove box General body repairs, interior68
2. Switch on ignition.
3. Set the switch for the fresh air blower V2(G) to speed "“3”".
4. Move the rotary air distribution control (B) to the "“air distribution to dash panel vents”" position.
5. Fresh-air/air recirculation button (F) not pressed (fresh air mode, lamp in button does not light)

6. Press the fresh-air/air recirculation button (F) (air recirculation mode, lamp in button lights).
7. Set the rotary air distribution control (B) to the position "“air distribution to windscreen”"(D). [Note: If operation is not OK, check the electronics in the heater control unit J65 and actuation of the fresh air and air recirculation flap control motor V154.]
8. Contamination of dust and pollen filter
9. Forced air extraction from passenger compartment
10. Ingress of water into passenger compartment
11. Fresh-air intake from plenum chamber and plenum chamber water drain
12. Seals between individual fresh-air intake components and vehicle for damage and leaks.

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