Mercedes SLK R171 Third Brake Stop Light Lamp Rear Red A1718200056

Mercedes SLK R171 Third Brake Light Rear Red is an original part from the Main and Center Brake Lights category, designed for installation in the rear of the vehicle body. The red lens provides a clear braking signal, improving vehicle safety and visibility in urban traffic and on the road. A used OEM component is a sensible choice for drivers who want to maintain the factory look and lighting parameters of their Mercedes SLK R171.

Specifications and technical data

• SKU: A1718200056-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1718200056
• Substitutable numbers: A1718200056, A 171 820 00 56
• Location on the vehicle: Rear
• Color: Red
• Category: Centre & Third Brake Light Assemblies

Purpose and Function of the Third Brake Light

The third brake light in the Mercedes SLK R171 plays an important role in the braking signaling system, increasing the vehicle's visibility to drivers behind. Mounted high on the rear of the body, it complements the standard brake lights and improves signal clarity, especially in dense traffic or low visibility conditions.

This component is designed specifically for the SLK R171 body, ensuring correct lighting geometry and a perfect fit with the trunk lid lines. The appropriately selected red lens works with the vehicle's electrical system, providing stable and uniform illumination.

Construction, Color Scheme, and Body Fitment

The red finish of the lens is consistent with the factory styling of the Mercedes SLK R171 lighting, allowing for a cohesive look of the vehicle's rear. The light color is highly visible both day and night, and the lens optics, carefully selected by the manufacturer, reduce glare for other road users.

As a component from the Main and Center Brake Lights group, the third brake light is structurally designed to operate in external conditions – in the rear of the vehicle body, exposed to temperature changes, moisture, and vibrations. Original manufacturing ensures proper fitment with the bodywork, facilitating installation and reducing the risk of leaks.

Condition, Origin, and Benefits of Using a Used Part

The offered item is a used part, sourced from a dismantled Mercedes vehicle. Such OEM components are often chosen by users who wish to retain original design solutions while avoiding the cost of purchasing a new part. An original brake light ensures compatibility with the electrical system and the correct lighting parameters specified by the manufacturer.

Using a used, original third brake light allows you to:

• maintain a cohesive look of the vehicle's rear,
• preserve factory braking signal parameters,
• reduce repair costs compared to a new part,
• minimize the risk of fitment and installation issues.

Installation and Technical Aspects

The third brake light designed for the Mercedes SLK R171 is engineered as a dedicated component for the rear of the vehicle, making its installation in place of the factory part straightforward. When replacing, it is recommended to:

• check the condition of the wiring harness and connectors,
• verify the seal integrity after installation around the trunk lid,
• confirm the correct operation of the brake light after connection.

Thanks to its original construction, installation is typically a near plug-and-play process, without the need for modifications to the wiring or bodywork. This solution is particularly beneficial for workshops and users who value a quick and predictable repair process.

Selecting the Right Brake Light for a Mercedes

To select the correct third brake light for a Mercedes SLK R171, it is advisable to use manufacturer markings and vehicle data (model, generation, year of production). This helps avoid compatibility issues and ensures proper operation of the lighting system. If in doubt, comparing the shape and mounting points with the currently installed part is a good approach.

If you are looking for other Mercedes Main and Center Brake Lights, check out the Mercedes Main and Center Brake Lights available in our store to find a component that matches your specific Mercedes model.

For drivers interested in the topic of original used parts and their impact on durability and driving precision, we recommend the guide article BMW – Sporty Performance and Precision. How Original Used Parts Extend the Life of the Bavarian Icon?, which discusses practical aspects of selecting components by OEM numbers and their application in everyday use.