MOULD inside your car can cost hundreds to resolve in cleaning bills – but these expert tips can help save your time and money.
Water leaks can take seconds to wreak havoc in your vehicle, but a lifetime of damage if not treated properly.


Car gurus over at BigWantsYourCar.com shared their golden advice when it comes to preventing mould before it sets in.
CLEANING UP-KEEP
It may sound self-explanatory, but maintaining a standard level of cleanliness will help keep your motor safe from the stubborn stains.
Darren Miller, from the leading automotive company said: “Consistent interior maintenance, such as hoovering and cleaning surfaces, is necessary to prevent mould.
“Thorough and regular cleaning, especially in humid climates or during wet seasons, can prevent mould spores from finding a foothold.”
FOOD AND DRINK
To prevent mould, the expert also strongly advised being careful when eating or drinking in the car.
Spillages and crumbs become the “perfect breeding ground” for bacteria growth.
“This is because organic materials and liquids provide the perfect breeding ground for mould,” added Darren.
“In the event of spills, immediate cleanup is important.”
CLIMATE CONTROL
While we may think the air conditioning and heating settings in cars have been designed for our comfort, they are practical too.
“Effective use of your vehicle’s heating and air conditioning systems is a strategic approach to controlling interior moisture levels,” explained the motor guru.
“These systems are not merely for comfort; they are important for maintaining a dry and mould-free environment.”
Darren explained how air conditioning removes unnecessary moisture from the air which helps reduce risk of mould.
Using the heating when temperatures plummet is also a good idea because it will help keep the interior dry.
DEALING WITH WATER DAMAGE
Darren highlighted a “commonly overlooked”problem area – the scuttle panel below the windscreen wipers.
This area is important for water drainage but can often get clogged up with leaves, flower petals, and other debris, causing water to back up, which can then enter the air conditioning and heating systems,” he said.
“Water damage can quickly escalate into a mould problem if not addressed, emphasising the importance of monitoring for leaks and ensuring proper vehicle maintenance.”
How can I remove mould if it's already there?
THERE are several easy and low-cost ways to remove mould.
Bleach is usually all you need if you neither own nor want to buy specialised cleaning sprays and paints.
If using bleach, mix four parts of water with one part of bleach.
You’ll also need a stiff brush, a bucket of water with cloth, and another cloth for drying.
Apply your solution to the affected areas, including a few inches around the visible mould to kill any mould not yet visible.
Scrub it firmly with a strong brush.
Wait as long as possible or until the mould disappears from sight and rinse the treated areas thoroughly.
Pat dry the area and allow it to completely dry before moving any furniture or placing items in front of it.
The expert listed signs of water damage, including damp carpets, a musty smell, or water stains.
“These can also often be the first sign of a more serious issue, such as a leaky sunroof or door seal, which requires immediate repair to prevent mould,” Darren added.
He advised regular checks and drainage of these areas.
SIGNS AND RISKS OF MOULD
Signs you have mould in your car:
- A persistent musty odur
- Visible mould growth on upholstery, carpets or other interior surfaces
- Increased allergy symptoms
Mould spores can be potentially hazardous, causing or worsening respiratory issues and allergic reactions.
“It’s important to be aware of the dangers that mould can pose to your health and keep an eye out for any signs of it in your vehicle,” said Darren.
“Checking your car regularly for signs of moisture or mould, even in places you can’t easily see, like under the seats or carpets, is key to maintaining a healthy environment inside your car and avoiding expensive cleaning fees.”