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Home >> Audi >> 2020 >> S4 Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 50 (Air Conditioning (Refrigerant R1234YF Servicing) (2 Of 2)) >> 87 Air Conditioning >> Refrigerant Circuit >> Possible Concerns >> Odor From The Heater And A/C Unit >> Ultrasound A/C Cleaner

Ultrasound A/C Cleaner

WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

-- The ultrasound A/C cleaner is placed in the front passenger footwell and sprays the cleaning solution Aero-Clean. Aero-Clean neutralizes microbes and bacteria inside the heater and A/C unit. Refer to Front Heater and A/C Unit .

The unit comes with Operating Instructions.

Current devices. Refer to the Parts Information.

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