See also:

Engine
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CLIMATE CONTROL AIR FILTER
(For evaporator and blow unit) The climate control air filter is located in front of the evaporator unit behind the glove box. It operates to decrease the amount of pollutants entering the car. ...

Checking the amount of air conditioner refrigerant and compressor lubricant
When the amount of refrigerant is low, the performance of the air conditioning is reduced. Overfilling also has a negative impact on the air conditioning system. Therefore, if abnormal operation i ...