Mercedes Citan W415 Headlight Level Adjuster Switch Control Panel A4156890191

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes Citan W415 Headlight Level Adjuster Switch Control Panel is a factory lighting control panel component designed for precise adjustment of headlight height. This component from the Switches, control elements and ignition switches group provides the driver with convenient, intuitive access to adjustments, supporting safe headlight beam alignment under various vehicle load conditions. Thanks to its original design, the fitment for the Citan W415 installation is reliable and predictable.

Specifications and technical data

• SKU: rhd-A4156890191
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A4156890191
• Substitutable numbers: A4156890191, A 415 689 01 91, 685006048R
• Category: Switches & Controls

Application and function in the lighting system

The headlight level adjuster switch in the Mercedes Citan W415 is responsible for controlling the low and high beam height corrector from the cabin. It allows for quick adjustment of the beam angle to the current vehicle load, which reduces the risk of dazzling other road users and improves visibility in front of the vehicle. The element works with the factory wiring and control modules, maintaining the original logic of the lighting system operation.

Construction and integration with the control panel

The offered switch is part of the control panel, which is mounted in the dashboard in the location provided by the manufacturer. The design includes:

• a rotary or stepped mechanism for smooth headlight level adjustment,
• a connector matched to the Mercedes Citan W415 electrical harness,
• a housing compatible with factory mounts in the cockpit.

This configuration allows for installation without modifying the wiring, while maintaining consistent interior aesthetics and ergonomic access to lighting controls.

Benefits of using the original switch

Using the original headlight level adjuster switch in the Citan W415 translates into a number of practical advantages:

• Full electrical compatibility – predictable cooperation with the factory lighting system and controllers.
• Stable mechanism operation – maintaining tactile adjustment positions and setting repeatability.
• Visual consistency with the dashboard – a panel stylistically matched to the Mercedes interior.
• Reduced risk of installation errors due to the use of the original connector and mounts.

This solution is particularly recommended for post-collision repairs, replacing a damaged control panel, or restoring full functionality of the lighting system after a failure.

Condition, verification and selection based on technical data

The element comes from the used Mercedes parts group, which allows combining a favorable purchase cost with the preservation of factory specifications. Before installation, it is recommended to verify compatibility with the specific vehicle equipment version using the manufacturer's markings and catalog data. Thanks to this, the switch can be seamlessly integrated with the existing installation without the need for electrical adaptation.

If you are planning a comprehensive repair or modernization of the cockpit area in your Mercedes and need other elements from the same group, such as light switches, adjustment knobs, or ignition modules, check the available parts in the Mercedes switches, control elements and ignition switches category.

Support in choosing used parts

When selecting used control components, it is worth being guided not only by price, but also by origin and compatibility with the vehicle's equipment. Practical tips on the safe selection of elements from the secondary market can be found in the article Original, replacement or used – which car parts are the most cost-effective?, where differences in quality, fitment, and cost-effectiveness of individual solutions are discussed.

Additionally, if you are servicing the braking system in parallel and considering purchasing used components, the guide Second-hand braking system: how to safely choose discs, calipers and ABS?, containing a checklist for assessing the condition of key components, may be helpful.