Mercedes-Benz M-Class ML W163 Bulb Socket Holder Rear Light A1638200177

Mercedes-Benz M-Class ML W163 Bulb Socket Holder Rear Light is a practical lighting system component designed for installation in the rear of the vehicle body. It ensures stable seating of bulbs within the lamp, which translates into reliable operation of position and brake lights, as well as improved road safety. This solution is dedicated to Mercedes M-Class W163 series models, allowing for efficient replacement of a damaged component without interfering with the lamp structure.

Specifications and technical data

• SKU: A1638200177
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1638200177
• Substitutable numbers: A1638200177, A 163 820 01 77, EM
• Location on the vehicle: Rear
• Category: Rear Light Assemblies

Purpose and function in the lighting system

The presented bulb socket holder has been designed to work in the rear combination lamp of the Mercedes-Benz M-Class W163. It is responsible for mechanically holding the bulbs and correctly positioning them relative to the reflectors and the lens, which has a direct impact on vehicle visibility. Thanks to its dedicated shape and mounting points, the component fits the factory lamp, allowing for installation without any modifications.

Construction and fitment for Mercedes M-Class W163

The rear lamp bulb socket holder in this model has been developed specifically for the geometry of the W163 series body and lamp. Properly shaped bulb sockets and mounting guides facilitate correct seating of the component in the lamp, minimizing the risk of looseness or improper contact. A design dedicated to a specific M-Class generation allows for maintaining factory lighting parameters and compatibility with the vehicle's electrical system.

Benefits of using a dedicated socket holder

Using the correct bulb socket holder in the rear lamp provides a number of practical operational benefits:

• stable bulb mounting, reducing flickering and interruptions in lighting,
• correct positioning of the light source relative to the lamp, which improves vehicle visibility,
• easier service – more convenient bulb replacement and inspection of the system's condition,
• maintaining consistency with the factory electrical system of the Mercedes M-Class W163.

Thanks to this component, you can easily restore full functionality of the rear lights and brake lights after the original holder is damaged or the contacts are worn out.

Component condition and service application

The offered bulb socket holder comes from disassembly and is intended as a service part for replacing a damaged or faulty component in the rear lamp. This solution is particularly useful in situations where the lighting problem results from damage to the bulb socket rather than the lamp itself or the wiring. Replacing the holder often allows you to avoid the costly replacement of the entire combination lamp, restoring proper lighting operation while maintaining the vehicle's factory appearance.

Expanding the lighting system in Mercedes

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your Mercedes and need other components from the same group, such as lenses, lamp inserts, or additional lighting modules, check out the available parts in the Mercedes rear lights and brake lights category.

For drivers interested in optimizing vehicle maintenance costs and making informed choices regarding spare parts, practical advice on economical operation and repair planning may also be useful – more information can be found in the article Economical operation of a Ford – where to look for the greatest savings in mechanical and body repairs.