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What’s That AC Odor?

When you turn on your vehicle’s air conditioner and drive around Long Beach, do you notice a distinct odor emanating from the vents? If you do, then there is definitely something wrong with your car’s air conditioner.

There are some methods of finding and detecting certain smells coming from your air conditioner. Most of the time, these smells are the result of damage to your air conditioner system. There are several reasons why your car’s air conditioner can emit a certain smell.

One of the most common reasons for a foul odor in your air conditioner is mold growth inside of your air vents. A mildew smell can be caused by the growth of bacteria.

As your car gets older, mold, fungi, and microorganisms can start to cultivate. The growth of these bacteria is often on the evaporator, behind your dashboard, so it is not easy to access and clean. This growth will cause an unpleasant odor to come from your air conditioner. If you do not use your air conditioner often, it will be easier for bacteria to grow. If you run your air conditioner at maximum often, it can also cause bacteria to grow because of the excess water dripping in your unit. To fix this problem, the A/C unit must be treated with anti bacterial treatment to destroy the bacteria growing inside your unit.

If you smell gasoline every time you turn your air conditioner on, then your car may have a gas leak. When you turn on your A/C unit, the gas smell is sucked into the fresh air that the air conditioner is blowing. To fix this, the gas leak must be located and repaired.

Another cause of a malodorous air conditioner can be a dirty cabin air filter. If it is not cleaned properly, the air filter can collect dirt, stagnant water, dust mites, and other harmful pollutants. This can result in a bad smell every time you turn on your air conditioner. This problem can be easily fixed just by replacing the air filter, and regularly cleaning it.

If the air from your air conditioner smells sweet, then you should get it checked immediately. A sweet smell is almost certainly a symptom of a toxic antifreeze leak, which can come from the heater core, pipes or hoses, coolant housing unit, or the radiator.

If you notice an unusual odor emitting from your vehicle’s air conditioning system, call or come in to your Certified Auto Repair Specialist  today. Orozco’s is Long Beach’s number one vehicle repair and service center!

Business Hours


Mon – Fri: 7:30AM – 5:30PM
Sat: 7:30AM – 4:00PM
Sunday: Closed


  • 9665 Alondra Blvd. Bellflower
  • 562-920-1871 & 562-920-1873
  • 3033 Long Beach Blvd. Long Beach
  • 562-426-6322
  • 3619 Atlantic Ave. Long Beach
  • 562-427-4256
  • 1018 W. Orangethorpe Ave. Fullerton
  • 714-525-3239
  • 12776 Nutwood Street Garden Grove
  • 714-537-0076
  • New Location Coming Soon

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We service the following cities and surrounding areas

Long Beach, Bellflower, Compton, Artesia, Carson, Cerritos, Downey, Lakewood, Norwalk, Paramount, Signal Hill, Wilmington, Fullerton, Garden Grove, Orange County

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