Mercedes W177 Rear Lamp Right O/S Tail Light Side Panel A1779068402

Mercedes W177 Rear Lamp Right O/S Tail Light Side Panel is an original rear lighting component designed for installation on the right side of the vehicle body. Thanks to its factory-spec geometry and precisely selected optics, it ensures proper vehicle visibility as well as clear brake and turn signal illumination. This is the ideal solution for users who want to maintain the stylistic and functional consistency of the rear section of their Mercedes.

Specifications and technical data

• SKU: A1779068402
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1779068402
• Substitutable numbers: A1779068402, A 177 906 84 02
• Location on the vehicle: Rear, Right
• Category: Rear Light Assemblies

Purpose and vehicle placement

The presented lamp belongs to the Rear lights and brake lights category and is designed for installation in the rear right section of the vehicle. Its placement on the passenger side ensures full functionality of the rear lighting assembly, including brake, position, and turn signal lights, in accordance with the original design specifications of the W177 model.

The precise fit of the lens shape and housing to the body lines facilitates installation and reduces the risk of leaks at the connection point with the bodywork. As a result, the lamp works correctly with the electrical system and mounting elements provided by the manufacturer.

Technical and functional characteristics

The rear lamp in this model is designed as an integral part of the vehicle's lighting system, with specific light functions divided within a single assembly. The properly shaped lens optics allow for uniform light distribution, which improves signal clarity for other road users.

The main functions of this component include:

• realization of the rear position light function,
• brake signaling via the stop light,
• clear marking of the vehicle's right-side rear boundary.

A lighting assembly configured in this way supports safe vehicle operation, especially in conditions of limited visibility, heavy urban traffic, and night driving.

Benefits of using an original rear lamp

Using an original rear lamp in a Mercedes W177 allows you to maintain consistent lighting parameters with the rest of the vehicle's lighting elements. Thanks to this:

• uniform light color and intensity are maintained across the entire rear assembly,
• the risk of errors in the onboard lighting monitoring systems is reduced,
• factory-fitment with the body lines and adjacent elements is maintained.

For the user, this means stable operation of the lighting system, no need for additional wiring modifications, and the preservation of aesthetics consistent with the manufacturer's design. This is particularly important for vehicles where both functionality and visual consistency of the rear body section are a priority.

Component condition and service application

The lamp is primarily used when replacing a damaged or leaking unit following a collision, lens cracking, or failure of the lighting assembly. Choosing such a component is advantageous when the goal is to maintain the original lighting system design without interfering with the wiring harness or mounting points.

In the context of service work, the lamp can be installed using standard workshop procedures, utilizing factory mounting points and connectors provided by the manufacturer. This helps shorten repair time and reduces the risk of fitment issues.

Expanding rear lighting upgrades

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 additional light modules, composite segments, or side tail lights, check out the available parts in the Mercedes rear lights and brake lights category.

For users interested in deepening their knowledge regarding diagnostics and component selection based on manufacturer markings, as well as methods for maintaining automotive sub-assemblies, the article describing the principles of operation and maintenance of fuel supply systems may be helpful – you can find it here: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.