How do I clean a car interior properly?

A car interior gets dirty in layers: dust settles down onto the seats and carpets, so cleaning from the bottom up simply moves it around. Order matters more than products.

Safety

What you'll need

• A vacuum with a crevice tool
• Interior cleaner and microfibre cloths
• Glass cleaner
• A soft detailing brush (optional)
• An upholstery cleaner or extractor (optional)

Step by step

1. Empty everything, including the boot.Mats out, seats forward and back, everything out of the door bins, glovebox and boot. Trying to clean around belongings is what makes the job take three times as long.
2. Wash the mats separately.Rubber mats hosed and scrubbed, carpet mats vacuumed hard and shampooed if needed. They then need to dry fully — a damp mat put back is the classic cause of misted windows.
3. Brush and vacuum from the top down.Headlining first with a soft brush, then dashboard, vents and door tops, then seats, then carpets. A soft detailing brush lifts dust out of vents and seams so the vacuum can take it.
4. Use the crevice tool along the seat rails.The gap between seat and centre console, under the seats and in the seat back pockets is where most of the debris actually is.
5. Clean hard surfaces with a matt interior cleaner.Sprayed onto the cloth, not onto the panel — overspray goes into switches and onto glass. Wipe, then follow with a dry cloth.
6. Avoid glossy dressings.They look striking for a week, attract dust, and reflect off the inside of the windscreen at night. A matt finish is both safer and more durable.
7. Treat fabric seats with an upholstery cleaner.Test on a hidden area first. Work it in with a brush, then lift it out with a damp microfibre or an extractor. Do not soak the foam — it takes days to dry and it will smell.
8. Treat leather gently.A dedicated leather cleaner on a cloth, worked in and wiped off, then a conditioner a few times a year. Household cleaners and alcohol wipes strip the protective coating.
9. Clean the steering wheel and controls last.They are the greasiest surfaces in the car and cleaning them first contaminates every cloth. Use a plain interior cleaner, never anything that leaves a slippery film.
10. Do the glass properly, at the end.Inside and out, with a proper glass cleaner and two microfibres — one damp, one dry. Wind the windows down slightly to reach the top edge, which is where the smear line always is.
11. Change the pollen filter while you are at it.It is often a five-minute job behind the glovebox and it makes more difference to how the car smells than any air freshener.
12. Let everything dry with the doors open.An hour with the windows down, or a run with the air conditioning on, stops any dampness turning into a smell.

Tips

• A soft brush plus a vacuum nozzle held nearby lifts dust out of vents and seams that neither tool manages alone.
• Compressed air or a leaf blower clears the footwells of grit faster than any vacuum before you start.
• Keep a microfibre in the door pocket for the inside of the windscreen. It is the single most useful cloth in the car.

Common mistakes

• Putting a shine dressing on the dashboard — It reflects off the inside of the windscreen at night, which is a real visibility problem, and the glossy finish attracts dust so it needs redoing constantly.
• Soaking fabric seats to get a stain out — The foam underneath holds water for days and comes back as a musty smell and misted windows. Work damp, lift the moisture back out, and dry the car through.

If it doesn't work

Questions people ask