Mercedes CLA C117 Rear Tail Light Lamp Wiring Harness Right O/S A1179061700

Mercedes CLA C117 Rear Tail Light Lamp Wiring Harness Right O/S is an original electrical installation component designed for the right rear lamp of the CLA C117 body. Thanks to its factory design, the harness ensures a stable electrical connection, proper lighting operation, and consistency with the Mercedes factory electrical system. This solution is particularly beneficial for post-collision repairs, lamp replacement, or when wiring in the rear of the vehicle has been damaged.

Specifications and technical data

• SKU: A1179061800-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1179061800
• Substitutable numbers: A1179061800, A 117 906 18 00
• Location on the vehicle: Rear, Right
• Part type: Wire Harness
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function of the harness

The presented harness belongs to the Wires, harnesses, and connectors category and is dedicated to supporting the right rear lamp in the Mercedes CLA C117 model. It is responsible for transmitting signals from the vehicle's installation to individual lighting circuits, such as position lights, brake lights, or turn signals, in accordance with the configuration used in a given vehicle. Its placement in the rear – right side zone allows for direct routing of power and control signals to the lamp without the need to modify the factory installation.

Construction and fitment for the Mercedes CLA C117

The harness was designed by Mercedes with the goal of precise wire routing within the right rear corner of the body. The connectors used are prepared for compatibility with the factory tail lamp, which facilitates plug-and-play installation – connections are made using original plugs, without the need for soldering or creating adapters. The appropriate length of the wires and the arrangement of mounting points promote correct placement of the harness in the trunk area and the lamp cavity.

Condition, service application, and benefits of installation

The item is offered as a used electrical harness, which is an attractive service solution for owners of premium cars who want to maintain the original installation architecture at reasonable repair costs. Replacing a damaged or melted harness with an original component from dismantling allows for restoring the proper operation of the rear lighting, minimizing the risk of errors in onboard systems, and avoiding problems with leaky or poorly fitted replacements.

In practice, such a harness will prove useful for, among other things:

• post-collision repairs in the rear, right part of the vehicle,
• replacing the tail lamp when factory wires have been damaged,
• diagnosing faults related to power loss or lighting errors.

Why it is worth choosing original Mercedes wires

Original Mercedes wires, harnesses, and connectors are designed for long-term operation in demanding conditions – in the rear zone exposed to moisture, vibrations, and temperature changes. Using a factory component reduces the risk of improper fitment, accidental short circuits, or communication problems in the vehicle's electrical system. This is particularly important in modern models, where lighting systems are integrated with safety and onboard diagnostic systems.

If you are planning a comprehensive repair or upgrade of the rear electrical installation in your Mercedes and need other elements from the same group, such as additional harnesses, wire sections, or lamp connectors, check the available parts in the Mercedes Wires, harnesses, and connectors category.

Technical support and the trend for original used components

More and more premium car users are consciously choosing original used components instead of budget replacements, especially in the area of electrical installations. This allows for maintaining system consistency, avoiding compatibility issues, and optimizing service costs. If you want to better understand why this approach is gaining importance, it is worth reading the article: Crisis in the new parts market? Why used originals for premium cars (BMW, Mercedes, Porsche) are the hottest trend in 2026.

Summary

Mercedes CLA C117 Rear Tail Light Lamp Wiring Harness Right O/S is a practical solution for drivers who want to restore the full functionality of the right tail lamp while maintaining the factory standards of the Mercedes brand. The original construction, dedicated placement in the rear, right part of the vehicle, and fitment to the CLA C117 electrical system make it a sensible choice for repairs and lighting upgrades in this model.