Mercedes-Benz M ML W164 1 Door Cable Harness Wiring Loom Rear Left N/S 13542340

Left Rear Door Harness Mercedes-Benz M/ML W164 is an original door harness designed for installation on the left rear side of the body. This component belongs to the Cables, Harnesses, and Connectors group and is a crucial part of the door's electrical system, responsible for a stable connection between the body modules and the door hardware. Its factory design ensures proper signal and power routing, leading to predictable operation of the electrical equipment.

Specifications and technical data

• SKU: A0009983802
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0009983802
• Substitutable numbers: A0009983802, A 000 998 38 02, 13542340, EM
• Location on the vehicle: Rear, Left
• Category: Wiring Harnesses, Cables & Connectors

Purpose and Function in the Vehicle

The presented harness is designed for installation in the rear left area of Mercedes M/ML W164 generation vehicles. It is responsible for the electrical connection between the main wiring and the components located in the rear left door, such as window control, central locking, or other electrical elements specified by the manufacturer. Using a dedicated harness eliminates the risk of incorrect connector matching and facilitates system servicing.

Construction and Technical Advantages

The harness belongs to the Cables, Harnesses, and Connectors group, meaning it has been constructed with consideration for the requirements of resistance to bending, vibration, and temperature changes typical for the door area. Factory connectors allow for installation in existing mounting points without the need for modifications to the vehicle's original wiring. This maintains the electrical integrity of the system and compliance with the manufacturer's service documentation.

The main benefits of using an original door harness include:

• secure fit to the door and body pillar structure,
• proper routing of wires through factory grommets,
• minimized risk of damage from incorrect cable placement,
• easier diagnosis of potential electrical faults.

Location and Installation Aspects

The component is intended for installation in the rear left door area, allowing for unambiguous identification of its position in the vehicle. In practice, installation involves routing the harness according to the factory path, plugging the connectors into the appropriate sockets, and securing the wires in the door clips and grommets. The use of original construction facilitates the work of a mechanic or automotive electrician, reducing the time required to replace a damaged harness.

Due to the specific routing of wires in the door area, correct positioning of the harness in the joint between the door and the body is particularly important, which reduces stress during door opening and closing and affects the durability of the entire system.

Condition and Service Application

The offered harness is a used part, making it an attractive service solution for repairing the electrical system in the rear left door. This type of component is particularly useful for damage resulting from wire abrasion in grommets, contact corrosion, or mechanical damage to connectors. Using an original harness allows for the restoration of correct electrical system operation without the need to build the system from scratch.

Complementary Elements and Technical Knowledge

If you are planning a comprehensive repair or upgrade of the door electrical system area in your Mercedes and need other elements from the same group, such as additional wire sections, transition harnesses, or service connectors, check the available parts in the Mercedes Cables, Harnesses, and Connectors category.

When performing service work on the electrical system and other vehicle systems, it is advisable to use reliable sources of technical knowledge. If you are interested in safely selecting used components, including braking system parts, the guide article Second-hand braking system: how to safely select discs, calipers, and ABS? may be helpful, presenting practical tips on assessing the condition and selecting parts from the aftermarket.