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Replacing the Spark Plugs on a Smart Fortwo

Model: Smart Smart 451 - Years 2007-2015
Part: Spark plugs

Today, you will perform a task that many believe is complex, but it is actually very simple: replacing the three spark plugs on a 2008 Smart Fortwo. Access the engine bay and remove the top bolt securing each spark plug using a 10 mm spanner, as shown in the video. Disconnect the spark plug connectors and the hoses in the area, such as the hose related to the fuel pump, and unscrew the spark plugs to extract them. Done! Now, simply refit them by reversing the process, screwing in the new spark plugs and reconnecting everything.

Updated on 13 April 2026 by ScegliAuto

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by ScegliAuto

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