Land Rover Discovery 4 L319 Front Height Level Sensor Left N/S AH22-3C097-AC

Land Rover Discovery 4 L319 Front Height Level Sensor Left N/S is a precision component of the front headlight leveling control system, designed for installation on the driver's side. It is responsible for stably maintaining the correct headlight beam level, which improves night driving comfort and reduces the risk of dazzling other road users. This used OEM component is a sensible choice for drivers looking for a proven solution at an attractive price.

Specifications and technical data

• SKU: AH22-3C097-AC
• Mark: Land Rover
• Condition: Used
• OEM Part Number: AH22-3C097-AC
• Substitutable numbers: LR023646, AH22-3C097-AC, AH223C097AC
• Location on the vehicle: Front, Left
• Category: Headlight Assemblies

Purpose and function of the leveling sensor

The front left leveling sensor in the Land Rover Discovery 4 L319 works with the suspension system and headlight control, transmitting information about the current body position relative to the front axle to the controller. Based on this, the system automatically corrects the headlight setting to:

• maintain the correct road illumination range under various vehicle loads,
• increase road visibility during night driving and in difficult conditions,
• reduce the dazzling of oncoming drivers.

The vehicle location specified as front, left side ensures clear identification for installation and facilitates the selection of the correct component during service.

Benefits of using an original sensor in the Discovery 4 L319

Using a dedicated leveling sensor in the Land Rover Discovery 4 L319 allows for maintaining the factory operating parameters of the lighting system. A properly selected component:

• works with the factory headlight controller without the need for installation modifications,
• ensures repeatable, predictable headlight level correction performance,
• helps maintain compliance with requirements regarding low beam settings.

For users who expect stable lighting system operation and want to avoid problems with incorrect headlight levels after lowering or loading the vehicle, such a sensor is a key element of the entire system.

Condition, fitment, and installation aspects

The presented sensor is a component from the Front lights category, intended for a specific location on the vehicle. Thanks to its factory design for the Land Rover Discovery 4 L319, it retains the correct mounting geometry and the appropriate electrical connector, which facilitates installation in place of the previous component.

When replacing the leveling sensor, it is recommended to pay attention to:

• proper seating on the suspension arm or dedicated bracket,
• lack of tension on the rods or levers working with the sensor,
• secure connection of the electrical harness and protection of the connector against moisture.

After installation, it is worth verifying the operation of the automatic headlight adjustment to confirm the correct cooperation of the sensor with the control system.

Support in selecting used electronics and sensors

In the case of components such as leveling sensors, correct fitment based on equipment version and compatibility with the existing installation is crucial. If you want to better understand how to safely choose used modules and sensors, check out the Global Parts guide: Used automotive electronics – ECU modules and second-hand sensors, where selection by part numbers, compatibility issues, and practical installation examples are discussed.

Related items from the Land Rover Front lights category

If you are planning a comprehensive repair or upgrade of the front lighting zone in your Land Rover and need other elements from the same group, such as headlights, control modules, or additional mounting accessories, check the available parts in the Land Rover Front lights category.