Brake System
Filters
Engine
Body
Suspension
Damping
Belt / Chain Drive
Ignition / Preheating
Engine Cooling System
Exhaust System
Steering
Comfort / Interior
Wheel Drive
Clutch
Sensors
Gaskets / Sealing Rings
Fuel System
Transmission
Electric System
Air Conditioning
Heating / Ventilation
Belt Pulleys / Gears
car-light-bulbs
Relays
Door lock block/hinge
Chassis system
The ignition system of an automobile is an ignition type engine that, in accordance with the ignition sequence of each cylinder, periodically supplies the spark plug with high enough energy and high voltage （about 15000——30000V）， so that the spark plug generates a strong enough spark to ignite the combustible mixture.
Parking preheating means that when the engine is started in a cold state （that is, when the engine coolant does not reach the normal operating temperature）.