Subaru WRX Manuals 2025 WRX Owner’s Manual | Page 260

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Air Filtration System
& Cooling and Dehumidifying in High Humidity and Low Temperature Weather Condition
s04ad05
Under certain weather conditions( high relative humidity, low temperatures, etc.) a small amount of water vapor emission from the air outlets may be noticed. This condition is normal and does not indicate any problem with the air conditioning system.
& Air Conditioner Compressor Shut-Off When Engine Is Heavily Loaded s04ad06
To improve acceleration and gas mileage, the air conditioner compressor is designed to temporarily shut off during air conditioner operation whenever the accelerator is fully depressed such as during rapid acceleration or when driving on a steep upgrade.
& Refrigerant for Your Climate Control System s04ad07
1 Air conditioner label
Your air conditioner uses ozone friendly refrigerant R-1234yf( HFO-1234yf).
Before adding, changing or checking the refrigerant, check the air conditioner label in the location shown in the illustration to confirm which type of refrigerant is used in your vehicle.
Consult your SUBARU dealer for service.
Repairs needed as a result of using the wrong refrigerant are not covered under warranty.
4-8. Air Filtration System s04ae
Your vehicle’ s air conditioning system is equipped with an air filtration system. Replace the cabin air filter according to the replacement schedule found in the“ Warranty and Maintenance Booklet”. This schedule should be followed to maintain the filter’ s dust collection ability. Under extremely dusty conditions, the filter should be replaced more frequently. Have your filter checked or replaced by your SUBARU dealer. For replacement, use only a genuine SUBARU air filter kit.
CAUTION
Contact your SUBARU dealer if the following occurs, even if it is not yet time to change the filter.
. Reduction of the airflow through the vents.
. Windshield gets easily fogged or misted.
NOTE
The filter can influence the air conditioning, heating and defroster performance if not properly maintained.