Mercedes W205 C253 Door Wiring Harness Cable Rear Left Right N/O/S A2535409509

Mercedes W205 C253 Door Wiring Harness Cable Rear Left N/S is an original electrical installation component designed for the rear left door area in Mercedes vehicles. It enables the correct connection of factory receivers and sensors in the door to the main body harness, ensuring stable operation of electrical equipment. This is a practical solution for workshops and users who want to carry out repairs in accordance with factory standards.

Specifications and technical data

• SKU: A2535409509
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2535409509
• Substitutable numbers: A2535409509, A 253 540 95 09
• Location on the vehicle: Rear, Right, Left
• Category: Door Panels

Purpose and function of the rear left door wiring harness

The presented harness is dedicated for installation in the rear left door area, where it is responsible for transmitting signals and power between the body modules and components located in the door. The design of the wires and connectors is matched to the factory door layout in W205 and C253 series bodies, which facilitates installation and reduces the risk of installation errors.

The harness allows for maintaining proper wire routing in grommets and mounting points, which is essential for the durability of the installation and resistance to mechanical damage resulting from repeated opening and closing of the door.

Construction and body fitment

The component belongs to the Door Upholstery group, which means it is designed for integration with the internal structure of the door and its trim. The placement of connectors, wire segment lengths, and mounting points are prepared for factory holes and brackets in the door, thanks to which the harness is laid out in a predictable, orderly manner.

Such fitment promotes:

• maintaining proper wire flexibility during door operation,
• reducing stress at bends and grommet points,
• easier diagnostics and potential future repairs of the installation.

Service application and benefits of installation

The rear left door wiring harness will work particularly well in situations where the factory installation has been damaged due to abrasion, contact corrosion, mechanical interference, or post-accident repairs. Using an original component from the same model group allows you to:

• restore the correct electrical circuit path in the door,
• maintain compatibility with factory control modules,
• minimize the need for modifications and soldering of additional wire sections.

For workshops and services specializing in the Mercedes brand, this is a convenient solution that shortens repair time and makes it easier to maintain consistency with the vehicle's technical documentation.

Characteristics of the used component

The offered harness comes from the group of used parts, which allows for an economical repair while maintaining the original design of the component. Such components are often chosen for older vehicle models, where it is important to combine reasonable costs with maintaining compliance with the factory installation design.

If you want to better understand the differences between new and used parts in terms of costs, quality, and durability, the following article may be helpful: Car parts – new or used? We compare costs, quality, and durability.

Expanding work in the Mercedes door area

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and need other elements from the same group, such as upholstery panels, grilles, or mounting elements, check out the available parts in the Mercedes Door Upholstery category.