Mercedes ML W164 Interior Roof Light Lamp Parktronic A1648200123

The Mercedes ML W164 GL X164 Rear Headliner Light is an original cabin lighting component designed for the rear of the headliner in Mercedes ML W164 and GL X164 models. Finished in black, the housing seamlessly integrates with the factory interior trim, ensuring a cohesive look and functional illumination for the rear passenger area.

Specifications and technical data

• SKU: A1648200123
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1648200123
• Substitutable numbers: A1648200123, A 164 820 01 23, A1715420123, A 171 542 01 23
• Color: Black
• Category: Interior Light Assemblies

Vehicle Application and Function

The presented headliner light is part of the interior lighting system, mounted in the rear section of the vehicle's ceiling. It is responsible for localized illumination of the rear passenger space, enhancing comfort when using the car after dark – for example, when fastening seatbelts, reading documents, or organizing luggage on the rear seat.

As part of the cabin lighting range, this component works with the factory Mercedes electrical system, maintaining the original functionality (controlled by buttons on the light or the central comfort module – depending on the vehicle's configuration).

Construction and Interior Fitment

The black housing of the light has been designed for aesthetic integration with the headliner and other interior trim elements. The color scheme promotes a discreet appearance while maintaining consistency with factory panels and the roof console.

The original design includes:

• dedicated mounting points for the headliner in ML W164 and GL X164,
• an electrical connector compatible with the Mercedes wiring harness,
• ergonomically placed control buttons (if present in the specific version).

This ensures a tidy installation process without the need for modifications to the upholstery or electrical system.

Benefits of Using an Original Headliner Light

Using an original cabin lighting component in a Mercedes ML or GL offers several practical benefits:

• Factory Fitment – the shape and mounting points match the original headliner, facilitating installation and eliminating gaps and unwanted noises.
• Electrical Compatibility – the light works with the existing wiring and control modules, without requiring installation adaptations.
• Cohesive Interior Aesthetics – the black housing complements factory materials, preserving the characteristic Mercedes cabin appearance.
• User Safety – original lighting components are designed with consideration for standards regarding heating, light diffusion, and durability.

Condition, Origin, and Service Application

This item is a used component, offered as a used OEM part, allowing for economical repair or replacement of a damaged light while maintaining original quality. This solution is particularly beneficial for comprehensive interior restoration or restoring full lighting functionality after a collision, water damage, or wear and tear.

In workshop practice, such a headliner light is suitable as:

• a replacement for a damaged factory part,
• a supplement for missing equipment after bodywork and paint repairs,
• a part for interior reconstruction in fleet and private vehicles.

Lighting Selection and Technical Knowledge

When working with lighting systems in modern cars, it is important to ensure component compatibility with the electrical system and control systems. For more advanced solutions, such as LED headlights or xenon systems, a specialized guide may be helpful. Detailed information on selecting and replacing used headlights can be found in the article See More and Better – A Complete Guide to Selecting and Replacing Used LED and Xenon Headlights, which discusses practical aspects of working with OEM lighting.

Other Mercedes Cabin Lighting

If you are completing your interior equipment or planning further lighting upgrades for your car, be sure to check out other Mercedes cabin lighting options available in our offer. You can find a full list of products here: Mercedes cabin lighting, which will help you select cohesive elements for your model.