Mercedes-Benz A B W176 W246 Left Right Seat Wiring Loom Harness A2465405901

Mercedes-Benz A B W176 W246 Left Right Seat Wiring Loom Harness is an original seat electrical installation component designed for compact Mercedes models. It enables the correct connection of all receivers and sensors in the seat to the vehicle's electrical system, ensuring stable operation of comfort and safety systems.

Specifications and technical data

• SKU: A2465405901
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2465405901
• Substitutable numbers: A2465405901, A 246 540 59 01
• Location on the vehicle: Right, Left
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function of the seat wiring harness

The presented harness belongs to the Wires, harnesses and connectors category and is dedicated to the driver or passenger seat in W176 and W246 series vehicles. It is responsible for the orderly routing of wires within the seat, minimizing the risk of chafing, short circuits, and communication issues between control modules and actuators in the seat.

Thanks to its factory design, the harness allows for maintaining the correct wire routing, which is essential for both reliability and the safety of vehicle occupants. Using an original solution limits the risk of installation errors typical of modifications or unprofessional repairs.

Vehicle placement and compatibility

The harness has been designed for installation on the right or left side of the vehicle, which facilitates the selection of the component when replacing a damaged seat installation. This solution allows for flexible application depending on the interior configuration and equipment version of a specific vehicle.

The original design intended for the W176/W246 platform ensures proper fitment of wire lengths, connector placement, and mounting points. As a result, the installation process is orderly, and the harness is not exposed to excessive tension or kinking after installation.

Technical characteristics and advantages of use

As a component from the Wires, harnesses and connectors group, the product has been prepared to operate in the demanding environment of the vehicle interior, where variable temperatures, vibrations, and the movement of seat adjustment elements occur. Using the original harness allows for maintaining:

• consistency with the vehicle's factory electrical architecture,
• proper placement of connectors relative to modules and sensors in the seat,
• appropriate wire length reserve in moving zones,
• orderly cable routing, reducing the risk of mechanical damage.

In case of power supply or communication problems with seat components (e.g., during adjustment, heating, or passenger presence detection), replacing the complete harness is often a faster and more predictable solution than repairing individual wire sections.

Component condition and installation aspects

The offered harness is a used component, which allows for economical repair while maintaining the manufacturer's original specifications. This type of solution is particularly beneficial for post-accident repairs or mechanical damage to the installation under the seat, where both cost and compliance with factory standards are important.

Installing the harness requires removing the seat from the vehicle and accessing the mounting points and connectors in the floor and seat structure. Due to the specifics of the electrical system, it is recommended that the work be performed by a person with experience in servicing Mercedes vehicles, which will help avoid installation errors and subsequent diagnostic problems.

Expanding seat installations in a Mercedes

If you are planning a comprehensive repair or upgrade of the seat area in your Mercedes and need other components from the same group, such as additional harnesses, power cables, or seat connectors, check the available parts in the Mercedes Wires, harnesses and connectors category.

When considering post-accident repairs or replacing installation components within the seats, it is also worth checking the guide on parts selection, which discusses the differences between used parts and aftermarket body parts – detailed information can be found in the article Post-accident repair of your car: why are used body parts a better choice than replacements?.