Mercedes W206 Door Harness Cable Wiring Rear Left N/S A2065404116

Mercedes W206 Door Harness Cable Wiring Rear Left N/S is an original door wiring harness designed for installation on the rear left side of the vehicle body. This component belongs to the Cables, harnesses, and connectors group and provides a factory-engineered solution tailored to the electrical architecture of the W206 model, ensuring a stable connection between body modules and door equipment.

Specifications and technical data

• SKU: A2065406045
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2065406045
• Substitutable numbers: A2065406045, A 206 540 60 45, A2065404116, A 206 540 41 16
• Location on the vehicle: Rear, Left
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the electrical system

The presented door harness is designed specifically for the rear left body zone of the Mercedes W206. It is responsible for transmitting signals and power between the vehicle's main wiring and components located in the door, such as window controls, central locking, or other electrical elements provided in the car's specific configuration.

Thanks to its factory fitment for the specific mounting position in the vehicle, the harness maintains the correct routing, bending radii, and mounting points, which reduces the risk of insulation abrasion and electrical system interference.

Construction and compatibility with Mercedes W206

The Mercedes W206 Door Harness Cable Wiring Rear Left N/S is constructed as a complete solution with appropriately selected connectors and wire branches. The plugs used are prepared for compatibility with factory sockets in the door and body, allowing for a near plug-and-play installation without the need for wiring modifications.

The original design provided by the vehicle manufacturer allows for consistency with the existing electrical architecture and facilitates diagnostics in the event of potential faults. This solution is particularly beneficial for post-collision repairs, door replacements, or damage to the factory harness.

Benefits of using the original door harness

Using a factory door harness in the rear left part of the body offers a number of practical benefits:

• secure fitment for the Mercedes W206 without the need for installation modifications,
• compliance with factory electrical diagrams,
• reduced risk of installation errors and module communication issues,
• organized wire routing in the door and pillar, which promotes operational durability.

For the user, this means stable operation of electrical systems in the doors and a lower risk of intermittent connections, which are typical for installations repaired with makeshift methods. Choosing this component is a practical solution when replacing a damaged harness or restoring full functionality to door equipment.

Service application and installation

The Mercedes W206 Door Harness Cable Wiring Rear Left N/S is suitable for both professional body and mechanical repair shops, as well as workshops specializing in vehicle electronics. The component is intended for installation in a specific body zone, which facilitates work for mechanics familiar with factory wire routing points.

During replacement, it is recommended to route the wires according to the original path and check the condition of the grommets between the door and the body to ensure proper mechanical protection and sealing. This allows you to fully utilize the advantages of the original harness and reduce the risk of future faults.

Expanding the electrical system within the Mercedes body

If you are planning a comprehensive repair or upgrade of the door zone and side body section of your Mercedes and need other components from the same group, such as additional harnesses, connectors, or door wire sections, check out the available parts in the Mercedes Cables, harnesses, and connectors category.

For those interested in a broader perspective on selecting used components and their impact on the vehicle's character, an interesting supplement may be the article describing the installation of a sports exhaust system in a premium car – you can find it here: Used Mini John Cooper Works Pro sports exhaust – a legal way to get a racing sound and +7 HP.