A wheel scraped on a kerb, a headlight that has yellowed, a mirror cap gone grey, a steering wheel polished smooth: these four faults have one thing in common. They are seen immediately, they look purely cosmetic (two of these cases turn out not to be), and the replacement quote always looks out of proportion to the damage. So the question you are asking is a fair one: can the part be refurbished, or does it need replacing? What can technically be refurbished depends on how deep the damage goes and on the original finish; whether it is worth doing depends on what the vehicle is worth and how long you are going to keep it. Here is how each case is settled, part by part.
Refurbishing is not hiding
Two situations bring up the question. Either you are preparing a sale and you want the vehicle to present properly. Or a check is coming up, a leasing return or an inspection, and you are trying to limit the bill.
In both cases, one distinction comes before everything else. Bringing a part back into shape is work you stand behind and talk about: the wheel was refurbished, the headlight was polished, it is written down or it is said out loud. Hiding a fault is something else, and it always turns against the seller. A buyer who finds out afterwards that a mark was concealed stops discussing the price and starts discussing your honesty.
What follows goes through the parts one by one: what can be saved, what cannot, then how to decide and when to act.
Wheels: what gets refurbished, what gets replaced
Three cases, three different logics.
Kerb rash that has only affected the paint and the lacquer stays cosmetic. The area can be treated, the colour can be matched, and the result depends above all on the original finish.
A deep gouge that has bitten into the metal is a different category. You have to look at how much material has gone and where, in particular on the rim edge and the bead seat.
A buckled or cracked wheel leaves the cosmetic world entirely. This is no longer about appearance but about structure, so about safety. That case is not settled in an article: it is settled in the workshop, on the part, with the wheel off the car. In the great majority of cases the outcome is replacement: a structural repair requires an approved part and an approved process, and that is not something judged on appearance.
Two things complicate a repair, even on simple kerb rash. Diamond-cut or two-tone finishes and dark gloss colours are hard to match. And if the other three wheels have lived a life, a single refurbished wheel stands out precisely because it is cleaner than its neighbours. On a leased vehicle, a scraped wheel is a classic line on the return report: the detail is in our article on what gets charged when you hand a leased car back.
Dulled headlights: polishing oxidised polycarbonate
Modern headlight units are made of polycarbonate, protected at the surface by a coating. Under UV exposure, heat cycles and washing, that outer layer oxidises. The lens yellows, hazes over, and the light scatters instead of being aimed.
Polishing removes that oxidised layer. That is exactly why it has to be re-protected afterwards: with no new protection, the polycarbonate is left bare and the process starts again. Re-protection is not an optional extra, it is part of the job.
What cannot be treated from the outside, on the other hand: condensation inside the unit, a pitted or tarnished reflector, a crack, a failed seal. In those cases the problem is inside the unit, not on its surface, and the conversation turns to replacement.
One last point, often forgotten: the stakes are not only cosmetic. A scattered beam lights the road less well at night, and lights up places it should not.
Exterior plastics and whitened seals
Here too, two very different states look alike from a distance.
Plastic that is simply dirty and dried out needs a deep clean and then feeding. The result holds, because the material itself is intact under the grey layer.
Plastic that is baked at the surface is another matter. UV has degraded the material itself, the discolouration is pigmented through the thickness, and no amount of cleaning brings it back. This mainly affects mirror caps, trim strips, textured sill mouldings, grilles and exposed door seals.
A blunt word about the silicone products sold to bring the black back: they leave a shiny film that masks the real condition for a few weeks, attract dust, and run down the paint with the first rain. They repair nothing.
When the material is affected through its thickness, two serious options remain: a colour treatment suited to plastic, or replacing the part.
The interior: leather, steering wheel, polished plastics
On leather, separate two things. Faded colour, leather dulled by rubbing and by dye transfer from jeans, can be cleaned and touched up. Cracked or split leather, where the surface layer has given way, is a trimming job and a repair with a part or a panel.
The other classic items: a steering wheel polished smooth by the palm, plastics scratched by rings and keys, door sills, door cards marked by shoes, and heated seats where the grain has flattened at the pressure points.
Why insist on the interior? Because that is what the buyer touches throughout the test drive. They look at the bodywork for two minutes and hold the steering wheel for twenty. This effect on how the vehicle is perceived is covered in our article on what sets the price of a used car.
Refurbish or replace: three criteria
The decision comes down to three things.
- What replacement costs with an original part, compared with refurbishing the part you have.
- What the vehicle is worth today, on the Swiss market.
- How much longer you are going to keep it.
The conclusion is sometimes uncomfortable. Each item on its own is often worth doing, but on a low-value vehicle, once five of them are added up, the total goes past what the buyer will pay. In that case, stating the condition and adjusting the price works better, provided you do not let so many small faults pile up that the buyer starts doubting the general upkeep. The full reasoning, item by item, is in our article on what you actually get back when you repair before selling.
The right moment: before a sale, before a return, or never
Three windows, three logics.
Before listing the car. Do the work before the photo session, not after the first test drives. A listing is judged on its images, and you do not make up for a poor set of photos along the way.
Before a leasing return inspection. Compare, item by item, what the workshop charges and what the finance company charges. To do that, ask for your own wear schedule in writing beforehand: there is no standardised, binding wear grid in Switzerland, each provider applies its own. Discovering it on the day of the appointment means accepting it.
On a long-term keeper. Act when the fault is getting worse, not when it is merely unsightly. Corrosion starting at a rim edge, a seal drying out and splitting, a lens hazing over: those three get worse. Grey plastic stops moving.
Keeping it from coming back
Work that has been done lasts longer if the maintenance habits follow.
- Proper washing, with wheel products suited to the type of finish. An aggressive cleaner on a diamond-cut wheel does lasting damage.
- Systematic re-protection of a headlight that has just been polished.
- A protective film on contact areas and exposed edges, rather than a repaint every two years.
- Care with a pressure washer near a filmed edge: the jet slips under the cut line.
The detail of these routines is in our article on looking after a premium vehicle day to day, and the logic of prevention by film is explained in our service page on protecting contact areas with a film.
Getting a condition report done
Only one thing really settles it: looking at the parts one by one, under good lighting, with the vehicle clean. That is the moment the list splits into two columns, what gets refurbished and what gets replaced, before a single franc has been spent.
On wheels, that often means taking them off to see the inner edge. On headlights, checking whether the haze is on the surface or inside the unit. On plastics, testing a discreet area.
We go through this review in the workshop, and we say what is not worth doing. The work that follows, when there is any, falls under cosmetic restoration. If you would like to start with a clear opinion on your vehicle, the simplest route is to request a vehicle condition report.
