Mercedes S205 Estate Rear Headlight Wiring Harness Cable Right O/S A2059064505

Mercedes S205 Estate Rear Headlight Wiring Harness Cable Right O/S is an original electrical system component designed to support the right rear lighting in the estate body style. Thanks to its factory design, the harness ensures a stable electrical connection between the headlight and the vehicle's wiring, which translates into reliable light operation. Using an OEM component allows for precise fitment to factory connectors without the need for any modifications to the installation.

Specifications and technical data

• SKU: A2059064505-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2059064505
• Substitutable numbers: A2059064505, A 205 906 45 05
• Location on the vehicle: Rear, Right
• Part type: Wire Harness
• Category: Wiring Harnesses, Cables & Connectors

Purpose and vehicle placement

The presented wiring harness is an electrical system component responsible for power supply and control signals for the right rear headlight in the Estate body style. Its placement in the rear area of the vehicle on the right side allows for direct connection to the lamp and the main electrical installation, which facilitates service and diagnostics of the lighting system.

Due to its dedicated design for a specific body zone, the harness maintains the correct routing of wires, minimizes the risk of abrasion, and ensures proper cable management relative to structural elements and upholstery.

Construction and function in the electrical system

The harness belongs to the Wires, harnesses, and connectors group, meaning it acts as an intermediary between control modules and the rear headlight. The integrated connectors are prepared for compatibility with factory sockets, which reduces the risk of installation errors and eliminates the need for soldering or using adapters.

The appropriately selected wire cross-section and layout support the correct operation of lighting functions, such as position lights, brake lights, turn signals, or license plate lighting (depending on the specific headlight configuration). Using an original harness allows for maintaining the consistency of the installation with the vehicle's factory electrical diagrams.

Benefits of using an original Mercedes harness

Using an original Mercedes component in the rear lighting area provides a number of practical benefits:

• secure fitment to factory mounts and wire routing in the estate body,
• compatibility with original headlight and vehicle installation connectors,
• maintenance of proper communication with lighting control systems,
• reduction of the risk of installation errors resulting from modifications or the adaptation of universal wires.

The used OEM component allows for an economical repair of the lighting system while maintaining factory wire routing logic and compliance with service documentation.

Service and diagnostic application

The rear headlight wiring harness on the right side is particularly useful in situations where the vehicle experiences lighting issues, intermittent lamp operation, lighting control system errors, or visible wire damage. Replacing the complete harness is often a faster and more predictable solution than point repairs of individual wires or connectors.

For workshops specializing in servicing vehicles of this brand, using an original harness facilitates diagnostics, as the installation remains consistent with factory diagrams, and access to wires and connectors is predictable and repeatable.

Expanding the installation within the rear lighting area

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

For users interested in deepening their knowledge of power supply and control system diagnostics, including the impact of the electrical installation on engine component operation, the article describing the symptoms and consequences of improper power supply component operation may be helpful, available here: Diesel injector faults – how to recognize them and the risks of neglecting them.