Removing and installing left air duct with control motor for left side window defroster flap V409 — AUDI
Removing and installing left air duct with control motor for left side window defroster flap V409 on Audi: 10 steps, 1 torque figure.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: platform code FV
🔩 Torque settings
Values can differ between engine variants — check the code stamped on your block.
| Torque | Fastener / step |
|---|---|
| 1 Nm (0.7 lb-ft) | Remove bolts (2 |
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
- ⚠ Risk of injury from knee airbag.Before working in the vicinity of pyrotechnic components, the mechanic must "“discharge static electricity”". Observe the safety precautions for working on airbags General body repairs, interior00Safety precautions; Safety precautions when working on pyrotechnic components. — Switch off ignition.
- Equipment version with ignition lock: Remove ignition key.
- Remove dash panel trim or knee airbag (driver side) General body repairs, interior68Shelves / trim panels; Removing and installing dash panel trim (driver side). [Note: Right-hand drive vehicles: Remove glove box and left dash panel support General body repairs, interior68Shelves / trim panels; Removing and installing glove box.]
- Remove the left dash panel vent
- Remove the left side defroster vent (1).
- Remove bolts (2) (tightening torque: 1 Nm). — 1 Nm (0.7 lb-ft)
- Detach left air duct (3) with V409(4) from the air duct in the dash panel and swivel down.
- Unplug electrical connector on V409(4)
- Remove control motor V409 from air duct (3).
- Renew damaged or defective foam seals.
Other AUDI procedures
- Removing and installing toothed belt – Audi · 56 torque figures
- Removing engine – Audi A8 D3 · 41 torque figures
- Removing camshaft timing chain from camshafts – Audi A6/A7 C7 · 38 torque figures
- Installing engine – Audi A8 D4 · 36 torque figures
- Removing and installing camshaft timing chain · 29 torque figures
- Renewing oil seals for output shaft, "“self-locking”", "“0BU”"
- Repairing threaded electrical connections
- Removing and installing fresh air and air recirculation flap control motor V154 or air recirculation flap control motor V113
- Renewing seal between output flange bevel box, vehicles as of model year 2010
- TT_3.2 BHE/BPF Ancillary drive belt
Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.