Spark Plug Removal/Installation
WARNING: This page is about a different car, the 2007 Mazda 3. 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.
- Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION [L3 WITH TC] .)
- Disconnect the negative battery cable.
- Remove the charge air cooler. (See INTAKE AIR SYSTEM REMOVAL/INSTALLATION .)
- Remove the ignition coils. (See IGNITION COIL REMOVAL/INSTALLATION ).
- Remove the spark plugs using a plug-wrench.
- Install in the reverse order of removal.
Tightening torque
10-14 N.m {1.1-1.4 kgf.m, 8.0-10 ft.lbf}