Headlight Levelling (Headlight Range Control)
Headlight levelling adjusts the height of the headlight beam to compensate for the load in the car.
What is Headlight Levelling (Headlight Range Control)?
Many cars have a manual dial with positions for different loads. Automatic systems use ride height sensors on the axles. Bright xenon and LED headlights often require automatic levelling. The handbook shows which dial position to use for each load. After changing suspension or ride height, the system may need recalibration. Xenon and many LED headlights must have automatic levelling by regulation.
How it works
Small motors tilt the reflectors or projector units up or down.
Why it matters for your car
A wrong setting dazzles oncoming drivers or reduces your own view. Faulty ride height sensors or linkages can upset automatic levelling.
Other terms
- Actuator Test (Output Test)
- Bar (Pressure Unit)
- Booster Seat (Child Booster)
- Brake Dust
- Brake Fluid Test
- Charge Air Pipe (Boost Hose)
- Driving In Fog
- Engine Mount
- Exhaust Gas Temperature Sensor
- Exhaust Leak
- Fuel Rail
- Horsepower (Power)
- Leaf Spring
- Monocoque (Unibody)
- Oil Temperature Sensor
- Orifice Tube
- Oversteer
- Second-life Battery
- Soft-close Doors
- Trailer Stability Control (Trailer Sway Control)