Mercedes W163 Rear Additional Third Brake Light Lamp Trim Panel A1638200156

Mercedes W163 Rear Additional Third Brake Light Lamp Trim Panel is an original component from the Rear lights and brake lights group, designed for installation in the rear part of the vehicle body. The red lens ensures a clear braking signal, and the factory-made housing design guarantees a proper fit to the body lines and stable mounting of the third brake light.

Specifications and technical data

• SKU: A1638200156-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1638200156
• Substitutable numbers: A1638200156, A 163 820 01 56
• Location on the vehicle: Rear
• Color: Red
• Category: Rear Light Assemblies

Purpose and function in the vehicle

The third brake light housing in the Mercedes W163 model is responsible for the correct positioning of the light module in the rear of the vehicle. This component stabilizes the lamp, protects it from external factors, and helps maintain the correct lighting angle, which translates into good visibility of the braking signal for drivers behind you.

The red color of the lens is consistent with the standard brake signal color, which supports the readability of the light message and improves safety during heavy braking, even in difficult road conditions.

Construction and fit for Mercedes W163

The housing has been designed specifically for the Mercedes W163 body, allowing it to maintain the factory lines and proportions of the rear of the vehicle. The design provides for installation in the rear zone, with appropriately shaped mounting points, which facilitates installation and reduces the risk of stress on the bodywork.

Precise fitment to the specific model allows for maintaining a consistent appearance of the tailgate or the upper part of the body, without unsightly gaps or misalignments. This is particularly important when replacing a damaged housing after a collision or long-term use.

Performance characteristics of the used component

As an aftermarket component, the third brake light housing is a reasonable choice for maintenance repairs when the priority is to maintain the original design at controlled costs. The used part allows for restoring the factory lamp mounting without the need to resort to replacements with uncertain fitment.

A properly selected housing helps eliminate play, vibrations, and leaks around the third brake light, which reduces the risk of moisture entering the lamp and extends its durability.

Benefits of using the original housing

Using the original third brake light housing in the Mercedes W163 ensures:

• a consistent appearance of the rear bodywork by maintaining factory shapes,
• stable mounting of the light module in the rear zone,
• proper diffusion of the red brake light,
• reduction of the risk of leaks and unwanted lamp vibrations.

For users who care about maintaining the original characteristics of the vehicle, such a housing is a practical solution when replacing a damaged or worn-out component.

Expanding upgrades with other lighting elements

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 combination lamps, brake light modules, or additional auxiliary lamps, check out the available parts in the Mercedes rear lights and brake lights category.

If you are also thinking about refreshing the cabin, changing seats or the steering wheel, and want to better plan the scope of interior work, the guide article Car interior tuning with Global Parts, which describes the practical application of used equipment components, may be helpful.