Description
MERCEDES W212 Door Wiring Harness Right Left Rear is an original electrical installation component from the Wires, Harnesses, and Connectors group, designed for the right and left rear doors. It enables a stable electrical connection between the doors and the body, ensuring the proper functioning of components installed in the rear doors.
Specifications and technical data
- SKU: A2044401705
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A2044401705
- Substitutable numbers: A2044401705, A 204 440 17 05
- Location on the vehicle: Rear, Right, Left
- Category: Wiring Harnesses, Cables & Connectors
Vehicle Application and Function
The presented door harness is dedicated for installation in the rear part of the vehicle, on both the right and left sides. It is responsible for transmitting signals and power to electrical components located in the rear doors, such as door locks, windows, or lighting controls, depending on the specific car’s equipment.
Thanks to precise fitting to the Mercedes body structure, the harness routes wires in a planned manner, minimizing the risk of chafing, mechanical damage, and electrical system interference.
Technical Application and Compatibility
The harness is designed as a factory installation component, meaning it is compatible with the vehicle’s original electrical architecture. The use of appropriate connectors and proper wire routing allows for installation in the factory location without the need for electrical system modifications.
The product has a dedicated OEM part number and associated replacement numbers, which facilitates unambiguous identification and selection of the correct component for a specific body version. Before purchasing, it is recommended to compare the markings with the existing harness in the vehicle or with the manufacturer’s specifications to ensure full compatibility.
Performance Characteristics and Installation
As a component from the Wires, Harnesses, and Connectors category, the product is adapted to operate in demanding conditions found in the door area – it accounts for hinge movement, temperature changes, and exposure to moisture. The appropriate harness design limits wire strain during door opening and closing, contributing to stable connections over a longer period of use.
The harness is intended for installation by individuals with experience in vehicle electrical systems. Proper wire routing, correct connector seating, and inspection of seal condition are crucial for maintaining system reliability.
Product Condition and Benefits of Choosing Original Parts
The offered component is a used part, sourced from disassembly, allowing for economical repair of the electrical system while maintaining the original manufacturer’s specifications. Using a factory door harness reduces the risk of problems typical for aftermarket replacements, such as ill-fitting connectors or differences in wire length.
Choosing an original harness for the rear body section allows for restoring the correct operation of electrical systems in the doors without altering the installation structure, which is particularly important for vehicle diagnostics and subsequent servicing.
If you are planning a comprehensive repair or upgrade of the door electrical installation area in your Mercedes and need other components from the same group, such as additional harnesses, wires, or door connectors, check the available parts in the Mercedes Wires, Harnesses, and Connectors category.
For drivers interested in optimizing servicing costs for other brands, practical tips on using the used parts market can be found in the article Repairing a Volkswagen for Pennies? Discover How to Save on Original Car Parts, which shows how to consciously choose components while maintaining appropriate quality.
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