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How to Clean Mold Off Car Interior

Mold grows in moist, warm conditions. When these conditions are present in your car, mould can grow and cause stains and odour. No matter what the reason for its existence, mould growth in your car can eventually pose a health hazard to your family, as well as weaken the car interior materials. Use supplies from your home to clean mould from your car interior.

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  1. Open your car windows and doors, if possible, and allow the interior to dry fully. Vacuum your car interior to remove visible mould spores. Throw the vacuum bag away immediately after vacuuming.

  2. Combine 2 cups each of ammonia and cool water in a bucket then wet a clean cloth with the diluted ammonia solution, then wring out the excess moisture. Sponge mould-stained upholstery and carpet to kill remaining mould spores and lift stains. Rinse your cloth with water, frequently, add more ammonia solution and continue to sponge until the mould stains are lifted.

  3. Rinse your upholstery and carpet by blotting with clean cloths dampened with plain water. Press dry cloths or towels into the surfaces to wick out as much moisture as possible.

  4. Fill a spray bottle with undiluted vinegar. Spray hard surfaces in your car's interior, such as the dashboard, centre console and the insides of your doors with the vinegar and wipe down with a clean cloth to kill and remove mould. Vinegar kills the mould spores, removes the stains and also rids your car of mould smell.

  5. Roll down your windows, if you're able to park your car in a safe, sheltered location such as your garage. Allow the interior to air dry completely.

  6. Sprinkle baking soda over any areas of your car interior that have lingering musty odour. Rub the baking soda into the upholstery or carpet with a dry cloth. Allow it to sit overnight. Vacuum your interior to remove the baking soda.

  7. Tip

    Always close windows, sunroofs and moonroofs in case it rains while you're away from your car. If your car is damp inside open the windows a crack, after you've parked in your garage, so moisture can escape.


    If your car has mould because of flooding, seek the help of a professional in order to avoid further damage.

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Things You'll Need

  • Vacuum
  • Bucket
  • 2 cups ammonia
  • Clean cloths
  • White vinegar
  • Spray bottle
  • Baking soda

About the Author

Mary Ylisela

Mary Ylisela is a former teacher with a Bachelor of Arts in elementary education and mathematics. She has been a writer since 1996, specializing in business, fitness and education. Prior to teaching, Ylisela worked as a certified fitness instructor and a small-business owner.

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