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How to Replace the Spark Plugs on a Mazda 3

Model: Mazda 3 BK, MK 1 - Years 2003-2009
Part: Spark plugs

Before you can start, open the bonnet of your Mazda 3. Begin by removing the air filter housing, unscrewing the fixing screws, and disconnecting the various hoses and electrical connectors. After that, unscrew and remove the bolts that secure the connectors attached to the spark plugs, then disconnect the connectors themselves. This will give you access to the spark plugs. At this point, unscrew and remove them from the engine head, and you will have completed the disassembly. To fit the new spark plugs, follow these steps in reverse, and the replacement will be complete.

Updated on 21 April 2026 by ScegliAuto

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