Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

Replacing Engine Spark Plugs

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

Purchase the correct spark plugs for your engine type. Gently remove the plastic cover protecting the engine by lifting it upwards. To avoid confusion with the cables, disconnect only the first spark plug. Using a 10mm socket wrench, unscrew the retaining nut of the first spark plug and pull the boot upwards. The first spark plug is located at the bottom of the well. Before proceeding with the removal, thoroughly clean the wells with compressed air to eliminate any dirt that could fall into the combustion chamber. Using the appropriate spark plug socket, which has a rubber gripping device, gently insert it onto the spark plug head and unscrew it. Proceed carefully to avoid dropping 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, ensuring it screws in properly without over-tightening.

Updated on 8 February 2026 by ScegliAuto

Video tutorial

Related tutorials

How to replace the spark plugs of the Mazda 3
How to replace the spark plugs of the Mazda 3
Mazda 3 (2009-2013 / MK 2, BL) How to disassemble damaged spark plugs? Let's see how the spark plugs are removed from inside the engine compartment of a Mazda 3. We lift the front …
How to change the spark plugs on Mazda 3
How to change the spark plugs on Mazda 3
Mazda 3 (2013-2019 / MK 3, BM, BN) Let's see how to change the damaged spark plugs mounted on a Mazda 3. We open the engine compartment and lift the front hood, let's put it in safety.…
How to replace the spark plugs on a Mazda 3
How to replace the spark plugs on a Mazda 3
Mazda 3 (2003-2009 / MK 1, BK) Before we can start, we will have to go to open the front hood of our Mazda 3. So let's start by disassembling and removing the air filter block, uns…

Other guides you may be interested in

How to Replace the Front Headlight on a Peugeot 308

As the first operation, you will need to release the bonnet using the designated lever to lift and secure it with the prop rod. This gives you access to the rear of the headlight. Before working in this area, disconnect the battery cables to protect any sensitive circuits. Returning to the back of the headlight, remove the protective cover that shields the connector powering the bulb. Disconnect it and extract the faulty bulb. Retrace the steps described for reassembling the various components.

Watch the video!


by ScegliAuto

More videos