Audi A8 D4 Door Wiring Loom Harness Rear Left Right N/O/S 4H0971687BF

Audi A8 D4 Door Wiring Loom Harness Rear Left Right is an original electrical system component from the Wires, harnesses and connectors group, designed for the rear left and right door area in the Audi A8 D4 generation model. This solution allows for the restoration of proper door electrical operation and maintains the factory installation architecture without the need for modifications.

Specifications and technical data

• SKU: 4H0971687BF
• Mark: Audi
• Condition: Used
• OEM Part Number: 4H0971687BF
• Substitutable numbers: 4H0971687BF, 4H0 971 687 BF, 4H0971687CD, 4H0 971 687 CD
• Location on the vehicle: Rear, Right, Left
• Category: Wiring Harnesses, Cables & Connectors

Application and vehicle function

The presented wiring harness is intended for installation in the rear part of the vehicle, on both the left and right sides, within the passenger doors. It is responsible for a stable electrical connection between the body modules and the equipment located in the doors, such as window controls, central locking, or other equipment elements structurally provided for in the Audi A8 D4.

Thanks to the factory routing of the wires and the correct distribution of connectors, the harness allows for maintaining the original installation path, which limits the risk of mechanical damage, signal interference, and diagnostic problems in the electrical system.

Construction and technical fitment

The harness belongs to the Wires, harnesses and connectors group, which means it has been designed as a complete, ready-to-install wiring loom with factory-terminated connectors. The layout of the wires, the lengths of the sections, and the configuration of the connectors are matched to the geometry of the Audi A8 D4 rear doors, which facilitates installation and minimizes the risk of incorrect connection.

Original connectors ensure secure, stable electrical contacts and proper cooperation with the vehicle's control modules. Using a dedicated harness instead of universal solutions helps maintain installation consistency, facilitates computer diagnostics, and reduces the possibility of errors appearing in comfort systems.

Benefits of using an original wiring harness

Choosing this wiring harness for the Audi A8 D4 brings a number of practical benefits:

• maintaining the factory electrical installation path in the rear doors,
• secure fitment to the mounts and grommets in the doors on the left and right sides,
• reduction of the risk of short circuits and open circuits thanks to properly selected wire cross-sections,
• easier diagnostics and service thanks to compliance with the factory electrical architecture of Audi.

The item in used condition allows for an economical repair while maintaining the original build quality, which is particularly important for the extensive electrical installation in the premium segment.

Purpose, installation, and part selection

The harness is intended for Audi A8 D4 users who are struggling with electrical problems in the rear doors, such as intermittent power loss, lack of communication with modules, or wire damage in the grommets. Installation involves removing the door upholstery, disconnecting the existing harness, and connecting the presented element in the factory location, following the order of the connectors.

Before purchasing, it is worth verifying compatibility with your specific vehicle based on technical data and the location on the vehicle. Using the correct harness reduces installation time, decreases the risk of needing modifications, and allows for the quick restoration of full functionality to the rear door area.

Expanding the installation in Audi – category and technical knowledge

If you are planning a comprehensive repair or upgrade of the electrical zone in your Audi and need other elements from the same group, such as additional wiring sections, connectors, or complete door harnesses, check the available parts in the Audi wires, harnesses and connectors category.

To better plan your repair budget and make an informed decision on when it is worth reaching for used OEM elements, the guide article Rising repair costs and the boom in used parts – how to save on car service? may be helpful, in which practical aspects of selecting parts from the secondary market are discussed.