BMW X3 F25 X4 F26 Rod Headlight Vertical Aim Sensor Control Rod Left N/S 6787167

BMW X3 F25 X4 F26 Rod Headlight Vertical Aim Sensor Control Rod Left N/S is an original headlight leveling system component, designed for installation on the left side of BMW X3 F25 and X4 F26 vehicles. This used OEM component ensures proper cooperation with the suspension position sensor, which translates into stable and safe headlight operation under various vehicle load conditions. It is a precise solution for drivers who want to restore the correct headlight geometry without compromising on quality.

Specifications and technical data

• SKU: 6787167
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6787167
• Substitutable numbers: 6787167, 37146787167
• Location on the vehicle: Left
• Category: Headlight Assemblies

Purpose and function of the component

The headlight vertical aim sensor control rod is responsible for the mechanical transmission of suspension movement to the sensor, which then sends a signal to the headlight control system. In BMW X3 F25 and X4 F26 models, this component is part of the automatic headlight leveling system, helping to maintain the correct beam angle during acceleration, braking, or changes in vehicle load.

The precise cooperation of the rod with the sensor is crucial for:

• maintaining the correct headlight cut-off line,
• reducing glare for oncoming drivers,
• maintaining compliance with vehicle lighting regulations.

Fitment for BMW X3 F25 and X4 F26

The offered rod is designed for installation on the left side of the vehicle, in accordance with the factory design of the suspension system and sensor mounting in the BMW X3 F25 and X4 F26. This ensures correct operating geometry, appropriate length and kinematics, as well as compatibility with the original mounting points on the wishbone and sensor.

Choosing an OEM component for the specific axle and side of the vehicle minimizes the risk of:

• incorrect sensor operating range,
• excessive play or stress in the system,
• accelerated wear of other leveling system components.

Characteristics of the used OEM component

As an original BMW part from the Front Lights category, the rod retains factory material and design parameters, allowing it to be used as a direct replacement for a damaged component. The used component allows for an economical repair while maintaining compliance with the factory lighting system design.

In practice, this means:

• consistency with the factory headlight leveling system,
• no need for modifications to mounts or suspension geometry,
• the ability to restore correct headlight operation after a collision, corrosion, or mechanical damage to the rod.

Service and diagnostic application

Replacing the headlight vertical aim sensor control rod is recommended in situations where leveling system errors occur, headlights are uneven, or there is visible mechanical damage to the component. A correctly selected and installed rod facilitates subsequent system calibration and stabilizes headlight operation during daily use.

This component is particularly important in vehicles equipped with advanced lighting systems, where the accuracy of the sensor signal has a direct impact on comfort and safety when driving after dark.

Expanding BMW lighting upgrades

If you are planning a comprehensive repair or upgrade of the front lighting area in your BMW and need other components from the same group, such as headlights, control modules, or additional mounting accessories, check out the available parts in the BMW Front Lights category.

For drivers interested in a broader approach to modifications and servicing of this brand's models, including the differences between standard components and the M Performance line, the following article may be helpful: BMW M Performance: how do BMW M components differ from standard ones?.