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At our 12040 O'Connor Rd location

Auto A/C Repair in San Antonio, TX

1,310 Google reviews · 3 locations, walk-ins welcome

Martinez Tire & Auto Center services and repairs car air conditioning at our O'Connor Rd shop in San Antonio. If your A/C blows warm, cools only on the highway, makes noise, or smells musty, we test the system, find the leak or failed part, and fix it so you are not stuck sweating through a Texas summer.

Martinez Tire & Auto Center

Auto A/C Repair

Walk-ins welcome. No appointment needed.
Hablamos español.

A/C Service

In San Antonio, car A/C is not a comfort option. Summer runs long, and a car parked in the sun can get dangerously hot inside. When the air stops blowing cold, you want it fixed right, not just topped off and sent on your way.

An A/C system is sealed. If it is low on refrigerant, it leaked somewhere. Adding more without finding the leak just means paying again next month. Proper A/C service starts with finding out why it is not cooling.

Common A/C problems

  • Warm air from the vents, often from a refrigerant leak
  • Cold at highway speed but warm at idle, which can point to a cooling fan or condenser issue
  • A/C that cycles on and off or cuts out
  • Clicking, squealing, or grinding when the A/C kicks on, which can mean a failing compressor or clutch
  • Musty smells, often from the evaporator or a dirty cabin air filter

Some of these are simple. A blown fuse, a failed relay, or a clogged cabin filter is a quick fix. Others involve the compressor, condenser, or evaporator. We will tell you which one you are dealing with.

Before the heat hits

A/C work is done at 12040 O'Connor Rd on the Northeast side. Spring is the best time to get it checked, before the shop fills up with everyone whose A/C quit in the first 100 degree week. Summer heat is also hard on batteries, so ask about a battery test while you are in.

Questions we hear

Why does my A/C blow warm air?

The most common cause is low refrigerant from a leak. It can also be an electrical problem, a failed compressor clutch, or a cooling fan issue. Testing tells us which.

Can you just recharge it?

We can, but if the system leaked, the new charge will leak out too. We look for the leak so you are not paying for the same fix twice.

Why does my car A/C smell bad?

Moisture on the evaporator can grow mold and bacteria. A cabin air filter change and an evaporator cleaning often help.

Auto A/C Repair at our 12040 O'Connor Rd location

This is the Martinez location that does it. Walk in, or call (210) 646-8911 first to check the wait. Hablamos español.