New car, funny smell from the AC even after disinfectant...

Q: New car, funny smell from the AC even after disinfectant and perfume bomb.

asked by on October 01, 2016

After switching on the AC, after a few minutes theres a funny smell that comes from the vents, it's not a strong smell but it's definitely there. Then the smell gets worse after switching the AC off and just using vents. It's been back to the service where they disinfected the AC the system and proceeded to let off a perfume bomb inside the car while the AC was on but still hasn't made a difference. Any tips would be appreciated. Thanks.

My car has 1200 miles.
My car has an automatic transmission.

Hi, thanks for writing in. I’d be happy to provide some insight. The smell you are getting may be a small amount of water that sits in the air conditioning system. After you shut it off, it will start to grow mold. As soon as you start the car and turn on the AC, you will have this water evaporated and blown into the passenger compartment. I recommend looking in the cowl area under wiper arms at bottom of windshield to see if there are any leaves or debris that may grow mold and have it removed and area cleaned. This is where your AC sucks in out side air. Make sure to use recirculating air so you recirculate the inside air and use less outside air.

If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

2013 Ford Fiesta has some weird clicking noise.

Hi there. The clicking noise could be coming from the brake pads shifting around when the brake pedal is released. The fluid noise could be just fuel in the tank sloshing around if your fuel level is low. I recommend...

Issues with EVAP system

It is very possible you may have a vacuum leak causing a rough idle and too much air on acceleration causing sputtering and rough running issues. A smoke check of the induction system would be a good idea. Reading the...

Why won't my windshield wipers stop?

Hello, thank you for writing in. The vehicle may be having issues with the wiper motors, or the switch. There will need to be some electrical testing done on the vehicle to properly determine which component is responsible for the...

Related articles

How to Replace an AC Control Module
AC control modules fail when the air does not distribute fully. If the temperature is inconsistent, the control unit may be at fault.
Do All A/C Systems Use Refrigerant?
All air conditioning systems use refrigerant. Refrigerant dissipates heat in the air conditioning system to keep your car cool in hot weather.
Symptoms of a Bad or Failing AC Belt
If your car squeals when you turn on the AC, has cracks in the AC belt, or is unable to defrost the windshield, you may need to replace the AC belt.