Mercedes Headlight Repair

Mercedes headlight repair brings a tired or faulty xenon or LED unit back to proper working order without buying the whole assembly from a dealer. Lenses, projectors, seals and electronic parts are each dealt with on their own, on the headlight you already have.

Smoky haze on the glass lens of a Mercedes xenon projector, seen up close

Mercedes models with their own page

C-Class (W203, W204)

Xenon units, damp, running lights.

E-Class (W211, W212)

Yellowed and crazed lenses.

Xenon Mercedes built before 2016: lenses that part cleanly

Mercedes closed many of its pre-2016 xenon headlights with a sealant that turns pliable once it is warmed. The old lens can therefore be lifted away without a struggle and a new one seated in fresh sealant.

That makes lens replacement on these units a straightforward repair, and a sensible alternative to a new headlight when the lens is cracked, crazed or yellow.

Lens lifting away as the softened sealant stretches into strands

Dim xenon light that new bulbs did not cure

On older Mercedes xenon units, the small glass lens at the front of the projector slowly clouds over. A trace of gas from the bulb leaves a smoky film on it, and the beam loses its punch.

Owners often fit new bulbs and see little change. Cleaning the projector glass restores the light output, and the bulbs you already have may be fine.

Xenon unit seen from behind on a test stand, its projector switched on during a Mercedes headlight repair

Condensation and LED faults on any Mercedes

Water inside a Mercedes headlight is stopped by resealing the lens joint, whatever the model or year. On LED units, a dead board is replaced together with its heatsink and a failed driver is swapped for a new one.

For lens work in more depth, see Headlight Lens Repair and Replacement.

Mercedes headlight questions

Are the replacement lenses made by Mercedes?

No. They are replacement lenses made to the exact shape of your headlight, not parts from a Mercedes dealer, so the seal closes all the way round.

My Mercedes is not a C-Class or E-Class. Is it covered?

Xenon and LED headlights from other Mercedes models are assessed the same way. Send a photo and the model.

Garage or dealer with a Mercedes in for an MOT or a sale? See Headlight Repair for the Motor Trade. How long a Mercedes unit spends in the workshop is confirmed in your quote.

Have your Mercedes headlight looked at

Tell us the model and year, and send a photo of the unit lit and unlit.

Send the details, get a price back

Say which car it is and what the headlight is doing, add a couple of photos, and your quote arrives by email. Nothing has to come off the car until you have agreed to it.

Who to reply to
Your quote is sent here.
Only ever used about this repair.
Helps us plan the courier, or see whether collection is possible.
The car
Vauxhall, BMW, Ford…
Astra, 3 Series, Focus…
Four digits, as on the V5C logbook.
Lets the workshop confirm which headlight the car was built with.
The headlight
Which headlight? (required)
The whole unit, the damage close up and any warning on the dash; for an electrical fault, one with the lights switched on. Five pictures at most, none over 10 MB.
When it started, any MOT advisory, or whether the car took a knock.
Send it

What you send here reaches the business that trades as Headlight Repair Shop, which uses it only to price and arrange the repair. The privacy policy sets out the rest.