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How to Replace Spark Plugs on a Mercedes A-Class

Model: Mercedes Classe A W176 - Years 2012-2018
Part: Spark plugs

Before you can begin, open the hood of your Mercedes A-Class. Start by unclipping and removing the engine cover, then move all the hoses positioned above the cylinder head. Next, disconnect the spark plug wire connectors, then unscrew and remove the respective mounting screws, and finally remove the spark plug wires themselves. By doing this, you will have access to the spark plugs. At this point, unscrew and remove the spark plugs, and you will have completed the disassembly. To install the new spark plugs and reassemble everything, simply follow these instructions in reverse, and you will have finished the replacement.

Updated on 7 April 2026 by ScegliAuto

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