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How to Reset the Check Engine Light on a Mercedes-Benz C-Class?

Model: Mercedes Classe C W205 - Years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
Part: Warning light – error code

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The check engine light that appears 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 the issue by performing a diagnosis. Therefore, connect a diagnostic tool to the vehicle's OBD port, located at the lower left of the steering column: once the scanner is connected, you can determine the cause of the problem and proceed to resolve it. This way, you will notice that the check engine light will disappear from the instrument cluster, allowing it to be turned off.


Updated on 13 August 2026 by ScegliAuto


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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.

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