Do it yourself
Frequently asked questions about cars and motorcycles

How to diagnose and solve the problem of LED headlights on a Mercedes C-Class

Model: Mercedes Classe C W205 - Years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
Part: Headlight

See other generations:
Video tutorial

In this video, we can see how to solve the problem of LED headlights fogging up from the inside on Mercedes C-Class cars: the first thing to do is to check that the headlight does not have any external damage and then, opening the hood, we verify that the seal is also good from the inside, where the connector must be in perfect condition.

If everything is sealed, we start defrosting by starting the engine after connecting the battery charger.

We should turn on the high beam for about an hour, or until the headlight is defrosted. These are common information for all cars that can be done as a DIY project: from here on, we must rely on a Mercedes workshop, which can understand how to fix any malfunction through the Xentry tips diagnostic system, owned by Mercedes workshops.


Posted on 19 January 2025 by ScegliAuto


Related tutorials

Mercedes Classe C (2000-2007 / W203) .. on the instrument cluster of a Mercedes C-Class, it indicates a problem related to the operation of the airbags, often due to an electronic fault... …
Mercedes Classe C (2007-2013 / W204) .. the check engine light appears on the Mercedes C-Class instrument cluster, it indicates a generic issue with the vehicle's injection system. You can identify.. …
Mercedes Classe C (2014-2021 / W205) .. on the instrument cluster of the Mercedes-Benz C-Class indicates that a generic problem has occurred in the vehicle's fuel injection system: you can identify.. …

Other guides you may be interested in

How to Replace the Glow Plugs in the Fiat Ducato 2.3 Multijet?

Glow plugs, as the name suggests, raise the temperature of the engine in diesel vehicles to allow for easier starting. The manufacturer, in this case, Fiat for the Ducato 2.3 Multijet, specifies how often they should be replaced, and a warning light will illuminate when it's time. This work is carried out under the bonnet. First, remove the upper engine cover, then lift the coil and, using a socket wrench of the appropriate size, unscrew the glow plug to remove it from the base, followed by installing the new one.

Watch the video!


by ScegliAuto

More videos