Spark Plug Removal/Installation
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.
CAUTION:
- If a Spark Plug that is not as specified is installed, engine performance will be deteriorated. Install only the specified Spark Plug when replacing.
- Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
- Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION .)
- Remove the Ignition Coils/Ion Sensors. (See IGNITION COIL/ION SENSOR REMOVAL/INSTALLATION .)
- Remove the Spark Plugs using a plug-wrench.
- Install in the reverse order of removal.
Tightening torque
15-20 N-m {1.6-2.0 kgf.m, 12-14 ft.lbf}