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Changing Spark Plugs on Smart 450

Model: Smart Smart 450 - Years 1998-2007
Part: Spark plugs

From the boot, access the rear compartment by removing the engine cover, as shown in the video, and locate the position of the spark plugs. Use a socket to reach the spark plugs and gently start unscrewing them counterclockwise. Take the new spark plug and insert it clockwise and secure it. To access the other spark plug, remove the right rear wheel arch by taking out screws and bolts, as seen in the video; this will allow you to locate the other spark plug. Follow the same removal procedure described earlier, unscrewing counterclockwise to remove the spark plug and replace it with the new one.

Updated on 10 March 2026 by ScegliAuto

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