Audi A6 C8 Height Level Sensor Rear Left N/S 4K0907504

Audi A6 C8 Height Level Sensor Rear Left N/S is a precision component of the Automatic headlight leveling system, responsible for the correct adjustment of the light beam relative to the vehicle's load. A properly functioning sensor ensures stable, predictable road illumination and reduces the risk of dazzling other road users. This component is designed for installation on the rear left side of the suspension in the Audi A6 C8 generation model.

Specifications and technical data

• SKU: 4K0907504
• Mark: Audi
• Condition: Used
• OEM Part Number: 4K0907504
• Substitutable numbers: 4K0907504, 4K0 907 504, 80A 941 187 D, 80A941187D, 4K0941309B, 4K0 941 309 B
• Location on the vehicle: Rear, Left
• Category: Self-Levelling Suspension Parts

Function and role in the headlight leveling system

The headlight leveling sensor in the Audi A6 C8 works with the headlight control module, transmitting information about the current position of the body relative to the vehicle's axle. Based on this data, the system automatically corrects the headlight angle to:

• maintain the optimal length and height of the light beam under various vehicle loads,
• increase driving safety at night and in difficult weather conditions,
• meet homologation requirements for vehicles equipped with advanced headlights.

The placement on the rear left side of the suspension allows for accurate mapping of clearance changes resulting from trunk and rear seat loads, which translates into stable operation of the entire system.

Construction and fitment for Audi A6 C8

The Audi A6 C8 Height Level Sensor Rear Left N/S has been designed specifically for the suspension architecture of the Audi A6 C8. The design of the mounts and the operating range are adapted to the geometry of the rear axle of this model, which facilitates installation and ensures proper cooperation with the factory suspension arm.

The original origin from the Audi group means that factory electrical and mechanical parameters are maintained, ensuring the sensor communicates correctly with the vehicle's installation and the headlight controller. This is especially important in cars equipped with advanced lighting systems, where operating tolerances are strictly defined.

Condition, verification, and service application

The item is offered as a used part, which allows for an economical repair of the leveling system while maintaining the manufacturer's original specifications. This type of sensor is most often replaced in the event of:

• errors stored in the headlight controller memory regarding the signal from the rear axle,
• mechanical damage resulting from corrosion, impact, or interference with the suspension,
• improper operation of the automatic leveling – headlights shining too high or too low.

Selecting the component according to the OEM part number and interchangeable numbers allows for precise matching of the sensor to the specific configuration of the Audi A6 C8, minimizing the risk of electrical or mechanical incompatibility.

Benefits of using an original sensor

Using an original element from the Audi group in the Automatic headlight leveling system brings a number of practical benefits:

• maintaining the factory headlight operating characteristics and smooth height adjustment,
• proper cooperation with safety systems that use body position data,
• reduced risk of controller errors resulting from incorrect signal parameters.

Thanks to this, the repair of the lighting system is predictable, and the vehicle retains its driving characteristics and comfort in accordance with the manufacturer's assumptions.

Automatic headlight leveling in Audi – additional elements

If you are planning a comprehensive repair or upgrade of the suspension and lighting area in your Audi and need other elements from the same group, such as additional sensors at other wheels, connecting arms, or mounting brackets, check the available parts in the Audi automatic headlight leveling category.

Technical support and part selection

When selecting headlight leveling system components, it is worth paying attention to compatibility with the vehicle's equipment and the history of any suspension repairs. In case of doubts regarding diagnostics or interpretation of errors stored in the controller, a guide on drivetrains and their accessories may be helpful – you can find practical tips in the article Transmission: manual, automatic, or DSG – common faults and a guide to buying a used gearbox, which discusses, among other things, the approach to purchasing used components and verifying their condition.