Handing a leased or PCP car back is where cleaning stops being cosmetic and starts being financial. Inspectors work to the industry fair wear and tear standard, and a large share of the charges people are surprised by are for things that cleaning and minor attention would have removed.
What is being assessed
Fair wear and tear allows for reasonable use. It does not allow for damage or neglect. In practice the inspection looks at panels, glass, wheels, tyres, interior and equipment, usually with defined limits for the size of a scratch or dent that is acceptable.
The important consequence: a dirty car is inspected as a dirty car. Dirt hides nothing — it just makes an inspector look harder and mark things they would otherwise have passed.
Where cleaning genuinely changes the outcome
- Wheels. Kerbing is charged for. Baked-on brake dust is not damage, but it makes a wheel look worse than it is. Clean them properly with a dedicated wheel cleaner and an iron remover.
- Interior stains. Charged for as damage. A coffee ring on a seat costs real money and usually comes out with an upholstery cleaner.
- Odours. Smoke smell is a standard charge and one of the largest. See our guide on removing smoke smell.
- Scuffs on plastics and door cards. Most are transfer marks rather than damage and clean off.
- Glass. Chips are charged. Clean glass also lets you find a chip before the inspector does, when a repair is still cheap.
- Light scratches. Many marks that look like scratches are transfer from another car or a trolley, and come off with a polish or a tar remover.
A sensible plan, four weeks out
- Full inside and out clean, in daylight, so you can actually see the car.
- Walk round it in the light and list everything. Photograph it.
- Separate the list into cleaning, cheap fix and accept the charge.
- Get windscreen chips repaired — often free under insurance and much cheaper than a charged replacement.
- Get the interior right. Stains and smells are heavily weighted and entirely fixable.
- Check the boot, the spare wheel well, the parcel shelf and the service book are all present.
The week before
Clean again, properly, and photograph the car from every angle in good light with a timestamp. If a charge appears later for damage you know was not there, that photographic record is what you argue with. Take the mileage too.
What not to do
- Do not try to fill or touch in dents and deep scratches badly. A poor repair is treated worse than the original mark.
- Do not use a heavy cutting compound if you do not know what you are doing — burning through lacquer turns a small charge into a panel respray.
- Do not leave it until the day of collection. You will find something you needed a week for.
The honest summary
You cannot clean away a dent. You can clean away a large share of what actually gets charged: dirt mistaken for damage, stains, smells and neglected wheels. That is a couple of hours of work against a bill that can run into hundreds.
Before you start
Always read the label on the product you are using and follow the instructions on it for dilution, application and safety. Work in the shade on cool paint, and test anything new on a small, hidden area first — particularly on trim, wraps and finishes you are not familiar with.
Not sure which product fits the job? SWAG Fast Lane asks three quick questions and puts the right kit together for you.