Removing and installing holders for control motors on left "“Low”" air conditioner (or heater with no air conditioner) — AUDI

🧭 Before you start

Fits: Audi A4 B9 (8W, 2015–)

📋 Procedure

1. Move the driver's seat to the rearmost position.
2. Switch off the ignition.
3. Remove the left (driver side) footwell vent .
4. ⚠ The air conditioner will not function properly if control motors and/or the corresponding connectors are interchanged Overview of control motors of air conditioner.The control motors and connectors are identical. If these are incorrectly installed or connected, the corresponding flaps can no longer be properly matched and/or actuated.Mark control motors and connectors clearly before detaching or removing to prevent incorrect installation. — Remove the following control motors.
5. Screw out the bolts (A).

6. Unfasten the wiring harness (C) from the holder (B).
7. Remove the holder (B).
8. Check the lever and connecting element to the temperature flaps (D) and the defroster flap (E) for correct positioning and proper operation.
9. Fit the holder (B).
10. Tighten the bolts (A).
11. Insert the wiring harness (C) in the holder (B) such that it cannot come into contact with moving components.
12. Check operation of the actuators (D, E)
13. Re-install the control motors removed in reverse order.
14. Lay the wiring to the various control motors such that it cannot come into contact with moving components.
15. Perform basic setting and final control diagnosis for the air conditioner "“Guided fault-finding”" mode. [Note: The control motors on this vehicle are equipped with electronics. A new control motor only learns its position at the heater and air conditioning unit in the course of basic setting and can then be actuated by the front air conditioner operating and display unit E87 (all control motors are identical at present) "“Guided fault-finding”" mode.During basic setting, the control motors are assigned and adapted in accordance with the series connection of the wiring. If the sequence is not as specified, the matching of the control motors and thus flap control will not be correct Overview of control motors of air conditioner.]
16. Interrogate the event memory of E87 and erase any faults displayed "“Guided fault-finding”" mode.

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