Cleaning air conditioner evaporator — AUDI

🧭 Before you start

Fits: platform code 42

• Also covered elsewhere: Operating instructions of VAS 6189A

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• For handling of ultrasonic A/C cleaner, refer to Operating instructions of VAS 6189A.
• Cleaning takes roughly 15 to 20 minutes. The cleaning process is over when no further vapour emerges from the outlet hose.

📋 Procedure

1. Select the path:
2. By switching from fresh-air to air recirculation mode, check whether the air conditioning unit evaporator is really the source of the odour Possible cause of odour formation at the air conditioner.
3. Remove the dust and pollen filters .
4. Clean the mounting slot for the dust and pollen filters .
5. Seal the opening at the air conditioning unit through which the dust and pollen filter was removed.

6. Start the engine.
7. On the operating unit, Climatronic control unit J255, set "“air recirculation mode”" and switch off the air conditioner compressor (lamp in AC (or A/C) button not lit).
8. Open the dash panel vents and, on the operating unit, Climatronic control unit J255, set the rotary temperature control to the "“Cold”" stop.
9. Close the vehicle windows.
10. Select the lowest fresh air blower speed on the operating unit, Climatronic control unit J255 and set the rotary air distribution control to "“dash panel vents”".
11. Shake the bottle of cleaning fluidVAS 6189/1 and pour the fluid into the ultrasonic A/C cleanerVAS 6189A. [Note: For handling of ultrasonic A/C cleaner, refer to Operating instructions of VAS 6189A.]
12. Position the ultrasonic A/C cleanerVAS 6189A in the passenger's footwell.
13. Start up the ultrasonic A/C cleanerVAS 6189A (in accordance with the appropriate operating instructions) and position the outlet hose such that the vapour emerging is drawn in by the fresh air blower V2 via the air recirculation opening of the air conditioning unit (beneath the dash panel).
14. Close the vehicle doors. [Note: Cleaning takes roughly 15 to 20 minutes. The cleaning process is over when no further vapour emerges from the outlet hose.]
15. Switch off the ultrasonic A/C cleanerVAS 6189A.
16. Open the vehicle doors and vent the vehicle for at least 10 minutes.
17. Remove the ultrasonic A/C cleanerVAS 6189A from the vehicle and clean it.
18. Switch off the ignition.
19. Fit the dust and pollen filters .

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