Ignition system
* Battery
* Generator
* Starter
* Ignition coil
* Spark plugs
* Ignition distributor
Fuel supply system
* Fuel tank
* Fuel pump
* Fuel filter
* Fuel injectors
* Fuel pressure regulator
Intake and exhaust system
* Air filter
* Throttle valve
* Intake manifold
* Exhaust manifold
* Catalytic converter
* Muffler
Cooling system
* Radiator
* Water pump
* Thermostat
* Expansion tank
* Cooling fan
Lubrication system
* Oil pan
* Oil pump
* Oil filter
* Oil channels
Engine management system
* Electronic control unit (ECU)
* Sensors (lambda probe, crankshaft position sensor, camshaft position sensor, etc.)
* Actuators (injectors, ignition coils, throttle valve)
Lighting system
* Headlights
* Tail lights
* Side lights
* Direction indicators
* Fog lights
Security system
* Anti-lock braking system (ABS)
* Stability Program (ESP)
* Airbags
*Collision warning
Comfort systems
* Air conditioner
* Heated seats
* Window lifters
*Power mirrors
* Central locking
Other components
* Wiper blades
* Sound alarm
* Immobilizer
* On-board computer