How to get rid of mould from your car interior

Safety Gear

When dealing with mould it is important to wear a mask. Not a dust mask but a respirator with filters like you use for spray painting or garden spraying. You do not want to breathe in mould spores. Use disposable gloves and ideally one of those spray painters’ plastic disposable overalls to avoid spores clinging to your clothing. If you can’t get that, make sure to wash the clothes you are wearing after you have finished the job. Goggles are a good idea as well. 

Identify the Source of Moisture

Before tackling the mould, it's crucial to identify and address the source of moisture that's causing it to thrive. Inspect your car thoroughly for any leaks or areas where water may be entering, such as damaged seals or sunroof drains. Once you've identified the source, take steps to repair or mitigate the issue to prevent mould from recurring.

Ventilate the Car

Start by opening all the doors and windows of your car to allow fresh air to circulate. This helps reduce humidity levels and creates a less hospitable environment for mould growth. If possible, park your car in a sunny spot to speed up the drying process and inhibit mould growth.

If it is a bad water leak into the carpet where it is really wet, then removing and drying the carpet and underlay from the vehicle is a good idea. If it is really bad, you may want to consider replacing them.

Vacuum the Affected Areas

Use a vacuum cleaner with a brush attachment to remove loose mould spores and debris from the affected areas of your car's interior. Pay close attention to areas where mould is visible, such as carpets, upholstery, and interior trim. Be thorough in your vacuuming to ensure you're removing as much mould as possible.

Clean with Vinegar Solution

An effective and chemical-free solution for removing mould is a vinegar solution. Mix equal parts white vinegar and water in a spray bottle and liberally apply the solution to the affected areas. Allow the solution to sit for several minutes to penetrate the mould and loosen its grip on the surface.

Scrub with a Soft Brush

After allowing the vinegar solution to sit, use a soft-bristled brush to gently scrub the affected areas. Be careful not to scrub too vigorously, as this could damage delicate surfaces like upholstery or leather. Focus on loosening the mould from the surface, working in small sections at a time.

Rinse and Dry Thoroughly

Once you've scrubbed the mould away, use a clean damp cloth to wipe down the surfaces and remove any remaining vinegar residue. Then, use a dry cloth to thoroughly dry the area. It's essential to ensure the interior is completely dry to prevent mould from returning.

Using a Carpet Steam Cleaner

If you do not have one you can hire these. Steam is known for its mould removal properties, and you get the added benefit of a good clean as well.  The cleaner should come with instructions on how to use it. Once clean, wipe seats dry with a clean microfibre towel. Make sure you air dry the carpet as if you leave it damp mould growth can re-occur.

Use a Commercial Mould Remover

If the mould persists despite your efforts, consider using a commercial mould remover specifically designed for automotive interiors. Follow the manufacturer's instructions carefully and test the product on a small, inconspicuous area first to ensure compatibility with your car's materials.

Prevent Future Mould Growth

To prevent mould from returning, it's essential to address any underlying issues that contribute to moisture buildup in your car. Keep the interior clean and dry and avoid leaving wet or damp items inside the car. Consider using moisture-absorbing products like silica gel packets or charcoal bags to help control humidity levels.

Regular Maintenance

Regular maintenance is key to keeping mould at bay in your car. Make it a habit to vacuum and clean the interior regularly, paying special attention to areas prone to moisture buildup. Promptly address any spills or leaks to prevent mould from taking hold. If garaged, leave windows down slightly to help airflow and let the interior breathe.

The important thing with mould is to take proactive steps to address moisture buildup and maintain a clean and dry environment. This will help ensure a healthy and comfortable driving experience for you and your passengers and avoid potential permanent damage to your interior.