BMW X5 Series E70 Cable Loom Door Rear Left Right N/O/S Wiring Harness 9116978

BMW X5 Series E70 Cable Loom Door Rear Left Right N/O/S Wiring Harness is an original electrical installation component designed to support the rear doors in this model. Thanks to its factory design, the harness ensures proper electrical signal routing and a stable connection between the door and the vehicle body. It is a practical solution for users who want to restore full functionality to their BMW X5 E70 door electronics in accordance with factory standards.

Specifications and technical data

• SKU: 9116978
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9116978
• Substitutable numbers: 61129116978, 9116978, 61129145184, 9145184
• Location on the vehicle: Rear, Right, Left
• Category: Wiring Harnesses, Cables & Connectors

Purpose and vehicle placement

The presented wiring harness is an electrical installation component dedicated to the rear doors of the BMW X5 E70. It is designed for installation in the rear area of the vehicle, with the possibility of application on both the right and left sides. This solution facilitates component selection during repairs when it is necessary to replace a damaged harness in one of the rear door panels.

Thanks to the factory fit for the specific body model, the correct geometry of wire routing is maintained, which reduces the risk of abrasion, kinks, and operational problems with the door's electrical components.

Function in the BMW X5 E70 electrical system

The rear door wiring harness is responsible for transmitting power and control signals between the vehicle's main installation and the components located in the doors. Depending on the car's configuration, these may include door lock actuators, window controls, lighting, or other electrical equipment. A properly selected harness allows for stable operation of all electrical door functions and minimizes the risk of interference resulting from incorrect connections.

The use of an original harness from the Cables, harnesses, and connectors group is particularly important in vehicles equipped with extensive comfort electronics, where the quality of connections has a direct impact on system reliability.

Characteristics and advantages of using an original harness

The offered harness is a BMW brand product, which means maintaining factory manufacturing standards and compatibility with the vehicle's installation. In practice, this translates into:

• proper adjustment of the length and layout of the wires to the construction of the door and body pillar,
• the use of connectors compatible with factory electrical installation sockets,
• reducing the need for modifications, soldering, or adaptations during installation,
• easier diagnostics of potential electrical faults in the future.

For users and service centers, this means trouble-free installation and the ability to restore the original wiring path, which is important from the point of view of both durability and operational safety.

Component condition and service application

The rear door wiring harness is offered as a used part, which is a cost-effective solution for vehicle repairs where the installation has been damaged due to wear, wire corrosion, or mechanical interference. Choosing an original, used harness allows for maintaining consistency with the factory installation while reducing costs compared to new components.

A component of this type will work well both in routine repairs and in complex door electrical system restoration after a collision or panel replacement. Thanks to the preservation of the factory wire layout, problems typical of universal-design replacements can be avoided.

Complementary BMW Cables, harnesses, and connectors

If you are planning a comprehensive repair or upgrade of the door area and the rear part of the body in your BMW and need other elements from the same group, such as additional harnesses, wire sections, or door installation connectors, check the available parts in the BMW Cables, harnesses, and connectors category.

For those interested in a broader context of modernization and repair of installations and components in cars, an article describing design changes and part selection in popular sports models may also be of value – you can find it here: Hot-hatch legend: the evolution of the VW Golf GTI from Mk1 to Mk8 – design changes and VW car parts.