Mercedes-Benz S W221 Wiring Loom Cable Door Rear Left Right N/O/S A2214409035

Mercedes-Benz S W221 Wiring Loom Cable Door Rear Left Right is an original electrical installation component designed for installation in the rear door on either the left or right side. As part of the Wires, looms and connectors group, it ensures a stable electrical connection between the door and the rest of the vehicle's installation, supporting the proper operation of factory comfort and safety systems. Using an OEM component allows for a technically correct repair without the need to interfere with the factory installation architecture.

Specifications and technical data

• SKU: A2214409035
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2214409035
• Substitutable numbers: A2214409035, A 221 440 90 35, KZ
• Location on the vehicle: Rear, Right, Left
• Category: Wiring Harnesses, Cables & Connectors

Application and function in the Mercedes-Benz S W221

The presented wiring loom is designed for installation in the rear doors of the W221 generation S-Class sedan, on both the left and right sides. It is responsible for transmitting signals and power between the modules located in the door and the vehicle's main installation, which is crucial for the operation of electrical components in this area.

By maintaining the original wire routing geometry and factory connectors, the loom allows for installation in existing mounting points without the need for modifications. This solution is particularly beneficial for professional repairs where compliance with the manufacturer's service documentation is essential.

Construction and electrical compatibility

The element belongs to the Wires, looms and connectors group, which means it has been designed as an integral part of the vehicle's electrical system. The connectors used are matched to the factory sockets in the door and the body, which minimizes the risk of installation errors and electrical contact issues.

The loom is prepared for operation in the rear body zone, where it is exposed to door movement, temperature changes, and humidity. The construction of the wires and covers has been selected to ensure appropriate flexibility and durability under typical operating conditions of a premium class vehicle.

Vehicle placement and installation aspects

The product is intended for installation in the rear part of the vehicle, in the area of the left or right door. This specific placement makes it easier to select the correct element when repairing the electrical installation in a specific body area.

During installation, it is important to route the loom according to factory paths, using original holders and grommets. This allows for maintaining the correct bending radius of the wires in the door grommets and reduces the risk of insulation abrasion during repeated opening and closing of the door.

Characteristics of the used OEM element

The loom comes from dismantling and is a used component, which in practice means the possibility of an economical repair while maintaining the manufacturer's original specifications. For many Mercedes-Benz S W221 users, this is a reasonable compromise between cost and technical compliance with the factory installation.

Using an original OEM element reduces the risk of problems with connector fitment, wire length, or electrical compatibility, which may occur with replacements of unknown origin. This is particularly important in higher-class vehicles, where the electrical installation is extensive and highly integrated with comfort systems.

Expansion of the installation within Mercedes wires and looms

If you are planning a comprehensive repair or upgrade of the door zone and the rear part of the body in your Mercedes and need other elements from the same group, such as additional wire sections, connectors, or complete door looms, check the available parts in the Mercedes wires, looms and connectors category.

For drivers interested in a broader perspective on the operation and repair of electrical components in a car, practical tips on the approach to used components can be found in the article When is it worth replacing an alternator with a used one: a practical guide for drivers, which helps to better assess the validity of using parts from dismantling in daily operation.