Removing and installing control motor for left side window defroster flap V409 with potentiometer G318 — AUDI

🧭 Before you start

Fits: platform code FV

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• Check operation of flaps and hinge mechanism before installing.Make sure levers and shafts are seated correctly in actuator sockets.
• If the actuator socket and pin are not opposite one another, the socket in the control motor must be turned. Observe notes .

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

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

1. ⚠ 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.
2. Equipment version with ignition lock: Remove ignition key.
3. 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.]
4. Remove left air duct .
5. Remove bolts (1).

6. Detach control motor for left side window defroster flap V409(2) from the air duct.
7. Unplug electrical connector (3). [Note: Check operation of flaps and hinge mechanism before installing.Make sure levers and shafts are seated correctly in actuator sockets.]
8. The actuator socket in the control motor (1) can only be fitted onto the pin (2) in one position.
9. Position control motor on pin (2), making sure it engages in the actuator socket (1). [Note: If the actuator socket and pin are not opposite one another, the socket in the control motor must be turned. Observe notes .]
10. Insert bolts (1) (tightening torque: 1 Nm). [Note: If the actuator socket on the control motor and the gear wheel on the flap lever are not opposite one another, the socket in the control motor must be turned. Observe notes .If the bolts cannot be placed in position, the control motor is not fully seated on the housing, e.g. the actuator socket on the control motor cannot stand correctly.] — 1 Nm (0.7 lb-ft)
11. Lay the electrical wiring harness such that it cannot come into contact with moving components.
12. Install remaining components.
13. Interrogate event memory and erase any entries displayed; then perform "“Basic setting”" ("“Guided Fault Finding”").
14. As a final step, check operation of heater/air conditioner.

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