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How to Replace Spark Plugs on a Mercedes C-Class

Model: Mercedes Classe C W203 - Years: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Part: Spark plugs

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Video tutorial

How to replace spark plugs on a Mercedes C-Class? Let's look at the disassembly of the parts. Pull the hood release lever and lift the hood, securing it. The coils are located under the metal/plastic soundproofing panel covering the engine.

Remove the panel with a socket wrench and take it off; disconnect the coils by hand and use your socket wrench to unscrew the spark plugs until they come out of the cylinder head. Take the new spark plugs and insert them into the cylinder head, connect the respective power connectors, and reinstall the soundproofing panel.


Updated on 7 March 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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