Purpose, Function
The spark plug generates spark, ignition of the air-fuel mixture occurs, and combustion of the air-fuel mixture is triggered.
Construction
The spark plug is installed to the cylinder head.

Iridium on the center electrode and platinum on the ground electrode are used (iridium spark plug).
Because iridium has excellent durability, extreme thinning on the center electrode is achieved.
The area contacting flame is decreased by extremely thinning the center and setting electrodes, and extinction action is reduced. Therefore, excellent ignition performance is achieved.

Spark Plug Removal/Installation [Skyactiv G 2.0]
Data NetworkHeadlight Auto Leveling System Initialization
NOTE:
The AFS control module records the vehicle height while it is unoccupied
by performing the headlight auto leveling system initial setting.
Perform headlight auto leveling system initial setting if any of the following
work is performed.
AFS control module rep ...
General Procedures (Front And Rear Axles)
Wheel and Tire Installation
1. When installing the wheels and tires, tighten the wheel nuts in a criss-cross
pattern to the following tightening torque.
Tightening torque
108—147 N·m {12—14 kgf·m, 80—108 ft·lbf}
Suspension Links Removal/Installation
1. For the joint ...
Liftgate Adjustment
1. Measure the gap and height difference between the liftgate and the body.
2. Loosen the liftgate hinge installation bolts and adjust the liftgate.
Standard clearance
a: 5.2?7.2 mm {0.21?0.28 in}
b: -2.0?0 mm {-0.078?0.000 in}
c: 3.8?6.2 mm {0.15?0.24 in}
d: ...