Automotive Air Conditioning Services in San Antonio, Texas
ASE Certified Technicians | Over 40 Years of Combined Experience | Discounts Available
Outstanding Auto Air Conditioner Service and Repair
Maintain your vehicle’s cooling system with the experts. Ewing Automotive provides top-notch automotive air conditioning repair and maintenance service around the San Antonio, TX, area. Our experienced technicians will check and diagnose any problems with your car’s air conditioning system and make the necessary repairs. We’ll see to it that you are completely comfortable while you’re on the road.
Comprehensive Automotive Heating and Cooling Service
From cooling fan repairs to heater core replacement, we provide complete services to keep your vehicle’s heating and cooling system functioning efficiently. Call us for a free estimate on heating and cooling system repair services.
- Diagnosis and repair
- Cooling fan repair and replacement
- Thermostat check and replacement
- Heater core removal and replacement

R12
For several years, R12 was the automotive refrigerant standard. It was efficient and affordable. However, scientists found that it was responsible for the depleting of the ozone layer. In 1994, it was banned from all new cars marketed in the US. Mankind is pretty good at handling the situation. The Ozone layer is recovering now when they banned Ozone Depleting Substances globally. The EPA says that these bans, “Are expected to result in a near-complete recovery of the ozone layer near the middle of the 21st century.” If you are driving a classic car, it may still be equipped with R12 refrigerant, and it’s still allowed to drive — but if you need the best cooling performance and easier A/C service, you can have an older car converted with the latest refrigerant type.
R134a
Most of the cars that are on the road today, R134a refrigerant creates the A/C system blows cold on warm days. Chosen for its low flammability and safety, as well as because it’s better to the environment, almost every car manufactured since 1994 is equipped with R134 refrigerant. Nonetheless, better is the keyword. By our current standard today, it’s not all that kind to the environment. R134a has been determined to have a lot of greenhouse fumes potential, as it can end up in the atmosphere and take forever to break down. That’s the reason, all new vehicles marketed in America after the year 2021 can no longer use this kind of refrigerant.
R1234yf
R1234yf was preferred to substitute R134a in all modern cars by 2021. Some manufacturers have already begun the switch, or the switch is in progress. In fact, as of 2018, 70% of newly manufactured cars already equipped with R1234yf! This new refrigerant functions similarly to R134a, but with one most important difference: it breaks down much quicker in the atmosphere. That means it’ll contribute less to global warming. It’s also easy to upgrade a car’s A/C system from R134a to make it compatible with R1234yf.