Mercedes W166 Rear Lamp Trunk Boot Tailgate Light Left N/S A1669060757

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W166 Rear Lamp Trunk Boot Tailgate Light Left N/S is an original lighting component designed for installation in the tailgate. It ensures a consistent look for the rear of the vehicle, proper light operation, and compatibility with the factory electrical system, which is particularly important for post-accident repairs and replacing damaged lamps.

Specifications and technical data

• SKU: A1669060757
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1669060757
• Substitutable numbers: A1669060757, A 166 906 07 57
• Location on the vehicle: Rear, Left
• Category: Rear Light Assemblies

Purpose and function of the lamp

The presented lamp belongs to the Rear lights and brake lights group and is mounted on the left side of the tailgate. It is responsible for proper illumination of the rear of the vehicle, working in conjunction with the other rear lamps so that turn signals, position lights, and brake lights are clearly visible to other road users.

Its placement in the tailgate area makes this component essential for both safety and aesthetics – a damaged or leaking lens disrupts the body lines and can lead to issues with the visibility of light signals.

Compatibility and fitment for Mercedes W166

The lamp has been designed specifically for the Mercedes W166 body, maintaining factory mounting points and a shape tailored to the tailgate. As a result, installation is straightforward, without the need for bodywork modifications or interference with the electrical system.

The original origin from the Mercedes brand ensures the correct lens geometry, proper light diffusion, and compatibility with factory lighting controllers. This is particularly important in modern vehicles, where lighting control systems react to any change in electrical parameters.

Technical characteristics and installation

The lamp is intended for installation in the rear left part of the vehicle, in the tailgate. The construction is based on the factory Mercedes design, which facilitates the transfer of all mounting points, seals, and connectors from the damaged component to this unit.

The item comes from the secondary market and is offered as used, allowing for an economical vehicle repair while maintaining original build quality. In practice, this means restoring full functionality of the rear lighting without the need to purchase a new lamp from an authorized service center.

Part identification and service application

The product has an assigned OEM part number and corresponding interchangeable numbers, which facilitates verification of compatibility with a specific equipment version and vehicle model year. Additionally, in the store system, the part is marked with a unique SKU, making it easy to find in order history or during consultations with the technical department.

Such markings are particularly useful for workshops and body shops that need quick identification of the correct lamp during post-accident repairs, replacement of damaged components, or completing the entire rear lighting set.

Expansion of the lighting and drivetrain system

If you are planning a comprehensive repair or upgrade of the rear area in your Mercedes and want to better understand how the lighting system works with advanced all-wheel-drive systems and vehicle electronics, it is worth checking out the guide on various AWD solutions – a detailed discussion can be found in the article xDrive, 4Matic, quattro or 4Motion – a comparison of AWD systems from BMW, Mercedes, Audi, and VW.

If you are planning a comprehensive repair or upgrade of the rear area in your Mercedes and need other components from the same group, such as additional bumper lamps, fender segments, or brake light modules, check out the available parts in the Mercedes Rear lights and brake lights category.