My car has a sour smell whenever you turn the AC on after it hasn't been used for a few hours. Somewhat like vinegar. It goes away after around 5 minutes, but it really is bad.

I've just finished shampooed the car seats so they'll have a good scent, coz they used to smell slightly bad as well, but now it's only the air conditioner that's the problem.

It's a bit rainy, so I suspect it's mould. I've tried turning the A/C to the hottest temperature for 3-5 minutes and then doing the same on cold, as I've read here. But it still comes back.

Here where I live, there aren't much odor removal sprays and other products. They're pretty hard to find. I'm planning to have this checked but I really don't have the time these days.

I'm thinking of spraying a baking soda plus water solution into the air conditioner vents. Can it harm the lining or surfaces inside? I just wanna be sure.

Thanks in advance (:

This is a common complaint, a/c smells bad, stale, etc. Spraying a disinfectant into the duct will help a great deal.

Not sure mixing baking soda with water will do the trick, but any other household disinfectant or air freashner will.

If you are really stuck on the baking soda, it won't harm anything. When it dries the soda will turn back into a powder and could blow out when teh system is turned on. And this could irritate your eyes.


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