A car interior is four different jobs in a small space: carpets and cloth seats hold water, plastics and trim hate solvent, glass needs to be streak-free, and the whole thing has to be dry before the owner drives it. The order and the amount of water decide the result.
Work dry to wet, top to bottom
Vacuum everything first, including under the seats and along the rails. Clean the plastics and glass next, then the fabric with a spotter and minimal water, extract, and dry with airflow. Fabric last means dust and trim debris do not land on a damp surface.
Prices are Freshway catalogue prices as at 16 September 2026 and are subject to change. Confirm the current price, and whether GST applies, before quoting.
The sequence, and why it is that order
- Empty the car — mats, rubbish, and anything in the door pockets and the boot well.
- Vacuum dry. Carpets, seats, under the seats, the boot, and the crevices with a crevice tool. Loose grit is most of the dirt and it scratches plastic if you spread it around later.
- Plastics and trim. A damp cloth with a mild neutral cleaner, then a dry cloth. Avoid solvent on dashboards; it strips the matte finish and leaves a shiny patch.
- Glass. Inside and out, with a dedicated glass cleaner and a microfibre cloth. Do this before the fabric work so overspray does not land on damp seats.
- Fabric. Pre-treat spots, agitate gently, extract with minimal water, and dry with airflow — doors open and a fan or an air mover.
Tools that make the difference
| Item | Use | Price |
|---|---|---|
| Numatic CT470 | Commercial extraction for detailing work | A$1,499.00 |
| Detail tool, 4 inch stainless | Seat bolsters, rails and boot edges | A$245.00 |
| Karcher Puzzi upholstery tool | Hand tool for seats and trim | A$299.00 |
| Upholstery brush with pickers | Agitation and pet hair removal | A$17.95 |
Fabrics, stains and smells
Match the spotter to the stain rather than reaching for an all-purpose spray: a tannin remover for coffee and tea, an enzyme product for milk, urine and food, and a solvent spotter for grease and oil. Whatever you use, extract it out again — residue attracts soil and the seat looks dirtier in a fortnight.
Where the smell is in the foam, a surface spray only hides it. The foam has to be reached with the treatment and then extracted, or in bad cases replaced. A car that smells musty after cleaning is usually a car that was cleaned and then closed up wet.
What not to use inside a car
- Abrasive pads on plastic and screens. They leave permanent scratches, and on instrument cluster plastics the marks catch the light.
- Household detergent at full strength. It leaves a film that attracts dust and dulls trim.
- Bleach. It damages fabric and stinks the car out for days.
- Heavy water on seats and carpets. The padding underneath holds it, and mould follows within a week.
Leather, alcantara and vinyl
Leather gets a dedicated cleaner and a conditioner, because automotive leather is a coated finish that dries out. Alcantara and suede need a foam cleaner and a soft brush, with no soaking. Vinyl is the most forgiving, and a mild cleaner and a dressing is all it needs — the mistake on vinyl is a glossy dressing, which turns the dash into a reflected windscreen.
Doing this as a service
Interior detailing is priced on time, and time is drying. The vans that make money at it carry an air mover and treat drying as part of the job rather than a consequence of it. Where the customer keeps the car wet and closed, the work will be remembered as a smell rather than a clean.
Boot, mats and the headliner
The boot is usually the worst surface in the car because grit, mud and water arrive together. Take the mats out and clean them separately, vacuum the boot floor, then treat the carpet with the same spot-and-extract method as the seats. A rubber boot liner is the cheapest way to stop the problem coming back.
The headliner is the opposite: it is thin fabric glued to a foam backing, and water makes it sag. Do not extract it. Spot-clean with a foam cleaner and a barely damp cloth, blot immediately, and let it dry with the doors open. Where the damage is a large water stain, the honest answer is a trim shop rather than a cleaning method.
Questions we get asked most
- What is the best thing to use to clean a car interior?
- Three products cover it: a mild neutral cleaner for plastics and trim, a dedicated glass cleaner, and a fabric spotter with an extraction tool for the seats and carpets.
- What is the best way to clean the inside of my car?
- Dry work first: empty, vacuum, wipe plastics, do the glass, then treat and extract the fabric and dry with airflow. Water on fabric comes last because everything else makes dust.
- Can I clean my car interior with alcohol wipes?
- Alcohol is useful on glass, screens and some hard plastics, and it dries quickly. It also dulls some trim finishes and dries leather, so keep it away from those.
- What natural products can I use to clean a car interior?
- Diluted vinegar on glass and water with a drop of dish liquid on plastics are the common ones. Both need rinsing, and neither is ideal on leather or on screens with a coating.
- How do I stop the car smelling after cleaning?
- Dry it properly. Doors open, airflow across the seats, and no closing up while the carpet or foam is still damp. Musty smell after a clean is a drying failure, not a cleaning one.
References
- SafeWork NSW — chemicals and other substances.
- NSW Environment Protection Authority — chemical handling and disposal.
Detailing interiors regularly?
Tell us how many cars a week and whether you work from a van, and we will spec the extraction tools, spotters and drying setup for the volume. Browse carpet and upholstery cleaners or ask our team.