Air Conditioning Service
Air Conditioning Service in Billings, MT
The air conditioning unit in your vehicle operates similarly to a refrigerator

Your vehicle’s air conditioning unit has six major components:
- The refrigerant carries heat. In modern cars, refrigerant is a substance called R-134a. Older cars’ refrigerant is called r-12 freon, which is more expensive and difficult to find than R-134a.
- The compressor circulates and compresses refrigerant within the vehicle’s cooling system.
- Your vehicle’s condenser changes the refrigerant from gas to liquid and expels heat from the car.
- The expansion valve (sometimes called the orifice tube) is a nozzle that simultaneously drops the pressure of the refrigerant liquid, meters its flow, and atomizes it.
- Your vehicle’s evaporator transfers heat to the refrigerant from the air blown across it, cooling your car.
The receiver or dryer filters your vehicle’s refrigerant and oil, removing moisture and other contaminants from them.
When you start your vehicle’s air conditioning system,
the compressor works by putting the refrigerant under pressure and sending it to the condensing coils, which are generally in front of your vehicle’s radiator. The condenser expels hot air outside the car, cooling the air within the vehicle. When this happens, the refrigerant is cooled, and it changes form a gas to a liquid, which then passes through the expansion valve and to the evaporator.
Once the evaporator receives the liquid-state refrigerant,
When your air conditioning unit is not working as it should,
bring your vehicle to The Brake Shop. One of our trained air conditioning specialists will inspect your car’s air conditioner, all lines, the evaporator, and the compressor for leaks and wear.
Visit The Brake Shop at 2211 4th Ave N Billings MT 59101 near Bargreen Ellingson Restaurant Supply & Design. We can’t wait to see you around!
