Audi A6 C8 Headlight Headlamp Level Height Sensor Unit 4K0907504A

Audi A6 C8 Headlight Headlamp Level Height Sensor Unit is a precision component of the Automatic headlight leveling system, responsible for the correct adjustment of the headlight beam. A properly functioning sensor ensures stable, predictable road illumination and compliance with safety requirements and traffic regulations.

Specifications and technical data

• SKU: 4K0907504A
• Mark: Audi
• Condition: Used
• OEM Part Number: 4K0907504A
• Substitutable numbers: 4K0907504A, 4K0 907 504 A
• Location on the vehicle: Left
• Part type: Height Sensor
• Category: Self-Levelling Suspension Parts

Function and role in the automatic leveling system

The front axle headlight level height sensor works with the suspension and headlight control module, transmitting information about the current position of the vehicle body relative to the road. Based on this data, the system automatically corrects the headlight tilt angle, reducing the risk of dazzling other road users and improving visibility during acceleration, braking, and driving with a load.

This component is particularly important in vehicles equipped with xenon or LED headlights with a self-leveling function, where stable and repeatable information about the body geometry is required. A functional leveling sensor translates into predictable light behavior and driving comfort at night.

Purpose and fitment for Audi A6 C8

The presented sensor has been designed for the Audi A6 C8 platform, ensuring it maintains factory operating characteristics and compatibility with the original electrical installation. The placement on the left side of the vehicle allows for direct installation at the manufacturer's designated mounting point, without the need for structural modifications.

The original Audi origin means that the appropriate dimensional tolerances, the correct electrical connector, and proper cooperation with the factory controller software are maintained. As a result, the sensor can be seamlessly integrated with the vehicle's existing diagnostic system after installation.

Benefits of using an original used sensor

Choosing a used OEM component is a reasonable compromise between cost and quality. The sensor retains its factory design while allowing for cost savings compared to a new part. In practice, this means:

• maintaining the original operating characteristics of the automatic leveling system,
• reliable fitment to factory mounting points and the electrical harness,
• no need to adapt aftermarket replacements with uncertain parameters.

With proper installation and basic adaptation performed in the diagnostic system, the headlight leveling system regains correct functionality, which is especially important after suspension repairs, collisions, or headlight replacements.

Installation and operational tips

Due to operation in demanding conditions (near the suspension, exposure to moisture and contaminants), it is worth paying attention to the following during installation:

• correct positioning of the linkage or lever relative to the control arm,
• secure connection of the electrical plug and inspection of the harness condition,
• verification of readings in a diagnostic tester after installation.

After replacing the sensor, it is recommended to perform a calibration or adaptation procedure in the control system so that the reference values correspond to the current vehicle geometry. This ensures that the Automatic headlight leveling system will operate stably and in accordance with the manufacturer's specifications.

If you are planning a comprehensive repair or upgrade of the front lighting zone in your Audi and need other elements from the same group, such as additional sensors, mounting elements, or related control components, check the available parts in the Audi Automatic headlight leveling system category.

Technical support and additional knowledge

When diagnosing electronic systems in modern cars, such as the Audi A6 C8, there is often a need to analyze the interaction of multiple modules – from suspension and lighting to the drivetrain. For a better understanding of the relationship between body electronics and drivetrain systems, it is worth consulting the transmission guide available in the article Transmission: manual, automatic, or DSG – common faults and a guide to buying a used gearbox, which helps to view the vehicle as a coherent system of interconnected components.