The air conditioning expansion valve filter screen of Audi Q5 is located behind the glove box. Cleaning the air conditioning housing: Turn off the power socket of the air conditioner. Then use a clean cloth to wipe the housing of the air conditioner. Pay attention to dead corners such as ventilation openings where dust easily accumulates during cleaning. Cleaning the air outlet: First, use a damp cloth to wipe off the dust, then use a dry cloth to wipe it again to make it look brand new. Cleaning the filter screen: First, open the cover of the indoor unit of the air conditioner, take out the filter screen, and use a clean filter screen brush to brush off most of the dirt attached to the filter screen. Then soak it in a solution containing special air conditioner cleaning liquid, homemade cleaning liquid, or a mixture of dishwashing liquid and soap powder. The soaking time is 10-20 minutes, depending on the dirtiness of the filter screen. After soaking, gently brush the filter screen with a bottle brush to ensure each filter hole is clear and transparent, with no traces of dirt blockage. Then dry it with a special cleaning cloth, check that it is intact, and install the filter screen back into the unit. Observe whether it operates normally. When cleaning the filter screen, note that the water temperature should not exceed 50 degrees Celsius, and do not use laundry detergent, dishwashing liquid, gasoline, banana oil, etc., to avoid deformation of the filter screen.
