Mercedes S-Class W220 Rear Left Right Door Wiring Harness Cable A2207600504

Left/Right Rear Door Wiring Harness for Mercedes S-Class W220 is an original electrical installation component designed for factory fitting in the rear doors of this model. It ensures a stable electrical connection between the door and the body, enabling the proper operation of all connected consumers. As part of the Doors and Door Panels group, it is an essential component for professional repairs or replacement of rear door equipment.

Specifications and technical data

• SKU: A2207600504
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2207600504
• Substitutable numbers: A2207600504, A 220 760 05 04, AS
• Location on the vehicle: Rear, Right, Left
• Category: Doors & Door Skins

Vehicle Application and Placement

The presented wiring harness is designed for installation in the left or right rear door of the body, in accordance with the factory installation layout in the Mercedes S-Class W220 generation. It is responsible for transmitting signals and power between the body modules and the elements located in the door, such as window controls, locks, or other consumers designed for the specific equipment variant.

Technical and Functional Characteristics

The door wiring harness belongs to the group of body elements referred to as Doors and Door Panels, but its primary function is electrical. The construction is based on the factory wiring system, with appropriately selected wire gauges, shielding, and connectors matched to the Mercedes S-Class W220 installation. This allows for:

• maintaining compliance with the vehicle's original electrical diagram,
• seamless connection with factory connectors in the pillar and door,
• reducing the risk of communication errors in comfort and control systems,
• maintaining proper resistance to bending and operation in the hinge between the door and the body.

As a part from dismantling, the wiring harness retains the original connector layout and wire lengths, which facilitates installation without the need for electrical modifications.

Application in Repairs and Diagnostics

Replacement of the door wiring harness is recommended in situations involving wire chafing in the grommet, intermittent power loss to door consumers, or communication problems with modules. Using an original Mercedes wiring harness allows for:

• restoring correct electrical operation of the left or right rear doors,
• minimizing the risk of short circuits and damage to control modules,
• avoiding makeshift repairs on individual wires,
• maintaining compliance with service documentation and manufacturer's diagrams.

For correct part selection, it is advisable to refer to the manufacturer's markings and the equipment configuration of the specific S-Class W220 unit to ensure the harness matches the installed door version.

Condition and Benefits of Choosing a Used Part

The offered wiring harness is a used part, sourced from vehicle dismantling, which allows for maintaining factory compatibility with the Mercedes installation. In practice, this means:

• original connectors and wire routing consistent with the manufacturer's design,
• no need for adapting universal harnesses,
• economical repair while maintaining high quality of workmanship.

Before installation, a standard inspection of the insulation, grommets, and connector pins is recommended to ensure long-term and trouble-free operation under the demanding conditions of door use.

Expanding Mercedes Door Area Modernization

If you are planning a comprehensive repair or modernization of the door area in your Mercedes and need other parts from the same group, such as skins, reinforcements, or complete door wings, check the available parts in the Mercedes Doors and Door Panels category.

Additional information on a practical approach to selecting and installing used electrical installation components in a car, including modules and sensors, is provided in the Global Parts guide: Used Automotive Electronics Onboard – Why Choose Second-Hand ECUs and Sensors?.