BMW 3 5 Series E39 E46 Hella Xenon Headlight Vertical Aim Control Sensor

BMW 3 5 Series E39 E46 Hella Xenon Headlight Vertical Aim Control Sensor is an original component of the headlight height adjustment system in BMW vehicles, designed for xenon headlights in the Front lights category. It enables precise adjustment of the light beam, which improves visibility and driving comfort at night, and helps maintain compliance with vehicle lighting regulations. This used OEM component is a sensible choice for drivers looking for a technically compatible solution at an attractive price.

Specifications and technical data

• SKU: 8372381-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8372381
• Substitutable numbers: 67168372381, 8372381, PK
• Category: Headlight Assemblies

Purpose and function in the lighting system

The motor is responsible for the automatic or manual leveling of xenon headlights in BMW E39 and E46 series models, which allows for maintaining the correct cut-off line of the low beam. Thanks to this, the headlights do not dazzle other road users, and the driver receives stable, uniform road illumination.

The element works with the adjustment mechanism inside the headlight housing, transferring movement to the lens or reflector assembly. A properly functioning leveling motor is particularly important in xenon headlights, where the intensity of the light requires precise control of the setting.

Benefits of using an original BMW motor

Using an original leveling motor in the BMW Front lights system ensures:

• factory fitment to the xenon headlight design,
• proper cooperation with the vehicle's electrical installation,
• stable operation of the headlight height adjustment mechanism,
• preservation of the lighting parameters specified by the manufacturer.

The used OEM element allows for restoring the efficiency of the leveling system without the need for a costly replacement of the entire headlight, which is particularly beneficial for maintenance repairs or after a collision.

Condition, verification, and fitment

The motor is offered as a Used part, which means it comes from disassembly and was previously operated in a vehicle. Such components are often chosen for repairs where maintaining the original headlight design and compatibility with factory controls is crucial.

Before installation, it is worth verifying compatibility with the specific version of the xenon headlight in a given BMW E39 or E46, especially in the case of differences resulting from the production year or equipment. The product has an assigned OEM part number and interchangeable numbers, which facilitates the selection of the appropriate variant based on the vehicle's technical specifications.

Application in service practice

Replacing the leveling motor is a typical service operation performed during:

• malfunctioning automatic xenon headlight leveling,
• lighting system errors stored in the controller,
• lack of headlight response to height adjustment,
• post-accident repairs in the front part of the body.

Using an original element allows for reducing the risk of problems with fitment, play in the mechanism, or incorrect operation of the adjustment drive, which has a direct impact on driving safety after dark.

Expanding the BMW lighting system

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

More about used body and equipment elements

If you are considering a wider replacement of components after a collision or as part of vehicle restoration and want to better understand how to effectively use used elements from disassembly, it is worth reading the guide on our blog: Replacing body parts with used ones – can body parts from disassembly look like new?. You will find practical tips there regarding the selection of parts for popular brands, including BMW.