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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> A/C Compressor >> Air Conditioning (Refrigerant R1234YF Servicing) (2 Of 2) >> 87 Air Conditioning >> Refrigerant Circuit >> Possible Concerns >> Odor From The Heater And A/C Unit >> Evaporator, Spraying with Pressure Cup Gun and Spray Nozzle

Evaporator, Spraying with Pressure Cup Gun and Spray Nozzle

Spray off the evaporator directly with the cleaning solution using a spray lance (approximately 10 bar (145 psi)). This cleaning solution neutralizes microbes and bacteria directly on the evaporator.

To make it possible to access the evaporator, some pre-work and different spray nozzles are needed. Refer to General Information and Front Heater and A/C Unit .

An instruction booklet is included with the evaporator cleaning solution. Refer to the Parts Information.