Mercedes W213 Door Ambient Light Cable Harness Wiring Rear Right O/S A2135407744

Mercedes W213 Rear Right Door Wiring Harness is an original electrical installation component designed for the right rear door panel of the W213 body. This factory harness from the Wires, Harnesses, and Connectors category ensures proper connection of all consumers within the door to the vehicle's electrical system, guaranteeing stable power supply, communication, and safe operation of the systems. By adhering to the specifications of the Mercedes manufacturer, it provides a reliable solution for repairs and replacements of electrical components in the rear right door.

Specifications and technical data

• SKU: A2135407744
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2135407744
• Substitutable numbers: A2135407744, A 213 540 77 44
• Location on the vehicle: Rear, Right
• Category: Wiring Harnesses, Cables & Connectors

Purpose and Function of the Rear Right Door Harness

The presented harness is specifically designed for installation in the rear right door of the W213 body, meaning it is tailored to factory grommets, mounting points, and connectors. It is responsible for transmitting signals and power between the vehicle's electrical system and the components located within the door, such as control modules, actuators, and sensors, according to the specific car's configuration.

Thanks to its construction compliant with manufacturer requirements, the harness maintains proper circuit separation, shielding, and wire routing, which minimizes the risk of interference and facilitates diagnostics of potential faults in the door's electrical system.

Benefits of Using an Original Mercedes Harness

Using a factory wiring harness in the rear right door offers several practical benefits during vehicle servicing and operation:

• precise fit to the door and W213 body structure, eliminating the need for electrical system modifications;
• preservation of the original wiring topology, simplifying subsequent service and diagnostic work;
• compatibility with the rest of the vehicle's electrical system, including factory control modules and connectors;
• reduced risk of issues with bus communication and power supply to door consumers.

As a component within the Wires, Harnesses, and Connectors group, the harness is crucial for the correct functioning of the door's electrical system. Therefore, choosing a solution that aligns with the manufacturer's design helps avoid common problems associated with non-original modifications.

Installation Characteristics and Item Condition

The offered harness is a used item, which means it comes from a dismantled vehicle and retains its factory connector configuration and wire lengths. This solution is particularly beneficial for repairs following accidents or mechanical damage to the door, where replacing the entire section of the wiring is necessary, rather than just individual wires.

By preserving the original mounting points and routing, installation in the rear right door proceeds in an organized manner, with minimal risk of wire strain or improper placement in grommets. This translates to stable system operation in the long term.

Application in Mercedes W213 Service and Diagnostics

Replacing the complete door harness is often the recommended solution in situations involving chafed wires, corroded contacts, or mechanical damage to wires within the grommets. Using an original part dedicated to the rear right side allows for the restoration of correct door electrical functionality without the need for time-consuming soldering and reconstruction of individual circuits.

In the context of comprehensive repairs of electrical and electronic systems in vehicles of this brand, it may also be useful to expand knowledge about common engine unit failures – for this purpose, it is worth reading the article Second Life for the Mercedes OM642 Engine – How Injectors and Turbocharger Restore Power to the 3.0 V6 CDI, which discusses the characteristics and refurbishment plan for a popular diesel engine.

Related Mercedes Wires, Harnesses, and Connectors

If, during the repair of the rear right side of the W213 body, you also plan to replace other parts of the electrical system, connectors, or additional wiring sections dedicated to this brand, check the available parts in the Mercedes Wires, Harnesses, and Connectors category.