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Replacing Engine Spark Plugs

Model: Kia Sportage MK 2, KM - Years 2004-2010
Part: Spark plugs

Disconnect the negative terminal of the battery. Obtain a set of spark plugs identical to the originals. To avoid mixing up the wires, disconnect one spark plug at a time. Before proceeding with the removal, clean the wells thoroughly with compressed air to eliminate any dirt that could fall into the combustion chamber. Using the appropriate spark plug socket, which has a rubber grip, gently insert it onto the spark plug head and unscrew it. Be careful not to drop any foreign objects into the well. Replace the spark plug with one of the same model, carefully inserting it into the well, always using the appropriate socket and turning it gently to ensure it screws in correctly. If you feel resistance, remove it and try again. The spark plugs should be tightened with a torque wrench; if you do not have one, screw them in without overtightening. Repeat the same operation with the other spark plugs.

Updated on 7 February 2026 by ScegliAuto

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