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How to Replace the Spark Plugs on a Mercedes C-Class

Model: Mercedes Classe C W204 - Years 2007-2013
Part: Spark plugs

To replace the spark plugs on a Mercedes C-Class, open the hood to remove the plastic cover from the top of the engine block. Once this is removed, disconnect the connectors attached to the coils by unscrewing the screws that secure them in their housings. After the coils are removed, you can take out the underlying spark plugs and replace them with new ones. After replacing, reinstall the coils, connect them to the connectors, and close everything with the plastic panel on top of the engine.

Updated on 16 May 2026 by ScegliAuto

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