Yellowed headlights: how to restore them for a clear light in Luxembourg
By the Clean My Lux team · 22 June 2026
Glide the cursor — real before / after
Why do a car's headlights turn yellow?
Headlights turn yellow because their polycarbonate surface oxidises under UV rays, heat and road spray. The protective coating applied at the factory blocks UV at first, but it wears off over time: once that layer is gone, the plastic dulls, yellows and then turns milky. In Luxembourg as elsewhere, this mainly affects vehicles over five years old, cars parked outside and those exposed to road salt in winter. Yellowing is therefore not surface dirt you can wash off: it is a degradation of the material that must be sanded and re-protected.
Are yellowed headlights really a problem?
Yes. Beyond looks, foggy headlights sharply reduce lighting power at night. A yellowed headlight can lose much of its light output, cutting visibility distance and increasing risk at night or in the rain. It is also checked at the technical inspection: weak or scattered lighting can lead to a remark. Finally, on a car you plan to sell, cloudy headlights instantly suggest a poorly maintained vehicle and push the price down. Restoring them is one of the best cost-to-impact jobs on a car's appearance.
Can you restore headlights yourself?
There are DIY kits (toothpaste, abrasive pastes, sanding kits), but their results are often partial and above all temporary. The main issue: many DIY methods sand the headlight without re-applying a protective coating. The bare plastic regains clarity for a few weeks then yellows again faster than before, sometimes within one or two months. A lasting restoration requires progressive multi-grit sanding, polishing, then applying a UV protection that seals the result. It is this last step, often missing from DIY solutions, that makes all the difference over time.
How does a professional headlight restoration work?
Clean My Lux's headlight restoration (Optical Restore) takes place right at your home in Luxembourg and concerns the headlight lenses only. We start by masking the bodywork around the headlight, then sand the oxidised surface in stages, from the most abrasive to the finest grit, to remove the yellowed layer without digging into the plastic. Next comes polishing that restores clarity, and finally a UV protection that seals the work and delays the return of yellowing. The job usually takes under an hour for a pair of headlights and instantly gives the car a clear light and a fresh look.
How much does headlight restoration cost in Luxembourg?
In Luxembourg, restoring a pair of yellowed headlights costs around €100 incl. VAT at Clean My Lux, home visit included within the service area. It is a fixed price for both lenses, with no surprises. Compared with replacing a new headlight unit, which can cost several hundred euros per headlight depending on the model, restoration is a far more economical solution as long as the plastic is not cracked. It also fits perfectly into a more complete service: many clients combine it with an exterior wash or a detailing before a resale.
Get your headlights restored at home
No need to drop your car off anywhere: we come to your parking space or to your home, anywhere in our area in Luxembourg, fully equipped and self-sufficient. You book a slot online in a few clicks, and your headlights regain their clarity on the day of the appointment. If you are unsure about the state of your lenses, send us a photo and we will tell you whether a restoration is possible or whether the headlight is too cracked to be treated.
Frequently asked questions
How much does yellowed headlight restoration cost in Luxembourg?+
Around €100 incl. VAT per pair at Clean My Lux, home visit included. Fixed price for both headlights.
Is headlight restoration long-lasting?+
Yes, provided a UV protection is applied after sanding. This step, missing from DIY kits, prevents the headlights from yellowing again within weeks.
Do you work at home?+
Yes, we restore your headlights right at your home or workplace, anywhere in our area in Luxembourg. The job takes under an hour for a pair.
Can cracked headlights be restored?+
No. Restoration treats oxidation and yellowing of the plastic, but not cracks or water inside the unit. In that case the headlight must be replaced. Send us a photo if in doubt.
Does restoration improve lighting?+
Yes. By removing the yellowed, opaque layer, we restore the headlight's clarity and therefore its light output, for better visibility at night.