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How to replace the spark plugs in the Mercedes SLC 300.

Model: Mercedes Slc R172 - Years 2011-2019
Part: Spark plugs

Below we will see the instructions that will allow us to dismantle and replace the spark plugs of the Mercedes SLC 300. First, let's open the hood of the car and start disconnecting all the spark plug coils by unscrewing the screws located at the base; then we use a socket wrench with an extension to unscrew all the spark plugs, as shown in the video. At this point, we install the new spark plugs, of the correct type and with the same thread pitch; we initially screw them in by hand and then tighten them with a torque wrench, finishing with the reconnection of the coils.

Posted on 20 December 2025 by ScegliAuto

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