VW Phaeton 3D Audi A8 D3 Light Leveling Height Sensor Rear Right O/S 4E0616572E

VW Phaeton 3D Audi A8 D3 Light Leveling Height Sensor Rear Right O/S is a component of the Automatic leveling system, responsible for precisely maintaining the correct headlight beam height relative to the vehicle's load. This component, mounted on the right side of the rear axle, works in conjunction with the suspension and the headlight control unit, ensuring stable, predictable road illumination and compliance with homologation requirements.

Specifications and technical data

• SKU: 4E0616572E
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 4E0616572E
• Substitutable numbers: 4E0616572E, 4E0 616 572 E, 4E0616572B, 4E0 616 572 B
• Location on the vehicle: Rear, Right
• Part type: Height Sensor
• Category: Self-Levelling Suspension Parts

Purpose and function in the leveling system

The described sensor is dedicated to Volkswagen Phaeton 3D and Audi A8 D3 models equipped with an automatic headlight leveling system. Its task is to continuously measure the position of the rear part of the body on the right side and transmit a signal to the headlight control unit, which adjusts the headlight setting based on this data.

Stable operation of the sensor translates into:

• maintaining the correct headlight beam height under varying vehicle loads,
• increased driving comfort at night due to uniform road illumination,
• reducing the risk of dazzling oncoming drivers,
• proper operation of xenon or adaptive headlights, if fitted to the specific vehicle.

Placement on the vehicle and installation aspects

The sensor is designed for installation in the rear axle area on the right side of the vehicle, as indicated by Rear Right. In practice, this means it works with the suspension components on the passenger side (in right-hand traffic), where changes in body position resulting from trunk and rear seat loads are registered.

When replacing, it is worth paying attention to:

• correct positioning of the sensor arm relative to the wishbone or linkage,
• protecting electrical connectors from moisture and corrosion,
• checking the wiring harness in the area of moving suspension components.

After installation, computer diagnostics of the lighting system are recommended, as well as adaptation or calibration of the automatic leveling system if necessary.

Characteristics and condition of the component

The offered sensor comes from the Volkswagen group and is part of the original leveling system architecture in the luxury Phaeton and Audi A8 D3 models. As a component removed from a vehicle, it represents a cost-effective service solution, allowing for the restoration of proper system operation without the need to invest in a new part.

Choosing an original component from the same design family ensures:

• electrical and mechanical compatibility with factory wiring and mounts,
• consistent operation with the existing headlight control unit and vehicle software,
• preservation of factory response parameters for the Automatic leveling system.

Importance for safety and diagnostics

A functional headlight leveling sensor has a direct impact on driving safety after dark and the absence of errors in onboard systems. A damaged or faulty component may cause:

• incorrect headlight adjustment (too low or too high),
• warning lights illuminating on the instrument cluster,
• error codes stored in the suspension or headlight control unit memory.

Replacing the sensor with a functional unit is a standard service procedure when diagnosing problems with automatic leveling, especially in vehicles operated in harsh road conditions, where suspension components are exposed to dirt and corrosion.

Expansion of the leveling system in Volkswagen vehicles

If you are planning a comprehensive repair or upgrade of the suspension and lighting area in your Volkswagen and need other elements from the same group, such as additional position sensors, linkages, or related control components, check the available parts in the Volkswagen Automatic leveling system category.

Technical knowledge and part selection

When working with advanced systems in Phaeton and Audi A8 D3 class vehicles, it is essential to correctly identify symptoms and select the right components. In case of doubts regarding gearbox behavior or planned replacement of drivetrain components, a guide describing typical faults and rules for purchasing used transmission system parts may be helpful – you can find it in the article Gearbox: manual, automatic or DSG – typical faults and a guide to buying a used gearbox.