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How to Replace the Spark Plugs on Your Mercedes SLK

Model: Mercedes Slk R170, MK 1 - Years 1997-2004
Part: Spark plugs

Do you want to replace the spark plugs fitted in the cylinder head of a Mercedes SLK? Let's see how to do this. Pull the lever to open the engine compartment and lift the front bonnet, securing it. The coils are located under the soundproofing panel covering the engine; unscrew the panel with a socket spanner and remove it. Disconnect the coils by hand, then use your socket spanner 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 reassemble the soundproofing panel.

Updated on 27 February 2026 by ScegliAuto

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