Visual Inspection

WARNING: This page is about a different car, the 2018 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the following items:

Fig 1: Inspecting Spark Plug (SKYACTIV-G 2.5)
Courtesy of MAZDA MOTORS CORP.
- If any of the following malfunctions are indicated, replace the spark plug.
- Insulator breakage
- Worn electrode
- Damaged gasket
- Badly burned insulator (sparking side)