---
title: "Mercedes Headlight Repair: Lens, Xenon and LED Units"
description: "Mercedes headlight repair for xenon and LED units: new lenses, hazy xenon projectors cleaned, water sealed out and failed electronics renewed. Get a quote."
url: https://headlightrepairshop.co.uk/models/mercedes-benz/
lang: en-GB
---

# 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.

[Get a quote](https://headlightrepairshop.co.uk/get-a-quote/)[How it works](https://headlightrepairshop.co.uk/how-it-works/)

![Smoky haze on the glass lens of a Mercedes xenon projector, seen up close](https://headlightrepairshop.co.uk/img/models_mercedes-headlight-repair.webp)

## Mercedes models with their own page

### C-Class (W203, W204)

- [Mercedes C-Class Headlight Repair (W203, W204)](https://headlightrepairshop.co.uk/models/mercedes-benz/c-class/)

Xenon units, damp, running lights.

### E-Class (W211, W212)

- [Mercedes E-Class Headlight Lens Replacement (W211, W212)](https://headlightrepairshop.co.uk/models/mercedes-benz/e-class/)

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](https://headlightrepairshop.co.uk/img/models_mercedes-headlight-repair_softened-seal-separating.webp)

## 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](https://headlightrepairshop.co.uk/img/models_mercedes-headlight-repair_xenon-ballast-test.webp)

## 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](https://headlightrepairshop.co.uk/headlight-repair/lens-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](https://headlightrepairshop.co.uk/for-professionals/). 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.

[Get a quote](https://headlightrepairshop.co.uk/get-a-quote/)