Audi A3 8V A5 8T Rear Door Wiring Loom Harness 8V5971693B

Audi A3 8V A5 8T Rear Door Wiring Loom Harness is an original component from the Wires, harnesses and connectors group, designed for use in the rear part of the vehicle. It ensures a stable electrical connection between the door and the bodywork installation, which is crucial for the proper operation of the electrical system in diesel-powered cars.

Specifications and technical data

• SKU: 8V5971693B
• Mark: Audi
• Condition: Used
• OEM Part Number: 8V5971693B
• Substitutable numbers: 8V5971693B, 8V5 971 693 B, 8V5971693F, 8V5 971 693 F
• Location on the vehicle: Rear
• Fuel type: Diesel
• Part type: Wire Harness
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the vehicle

The rear door wiring harness in Audi A3 8V and A5 8T models is responsible for transmitting signals and power to components located in the rear doors, such as window controls, central locking, or lighting. Using a dedicated harness for diesel vehicles ensures compliance with the factory electrical architecture and reduces the risk of errors in onboard systems.

Its placement in the rear part of the body means this component operates in an area exposed to door movement, vibrations, and temperature changes, which is why proper construction and fitment are essential for long-term, reliable operation of the installation.

Advantages of using an original Audi harness

Choosing an original Audi wiring harness translates into:

• factory-matched connector types and wire lengths for specific body models,
• correct routing of the installation through door grommets,
• maintaining compatibility with control modules and the electrical system in diesel vehicles,
• reducing the need for modifications, soldering, or creating additional wire sections.

As a result, installation is orderly, and the risk of future problems with wire chafing or unstable contact in connectors is significantly lower. This is particularly important in the door area, where the harness is subjected to stress every time the door is opened and closed.

Characteristics of the used component

The offered rear door wiring harness is a used part, sourced from vehicle dismantling. This type of part allows for an economical repair of the electrical system while maintaining the manufacturer's original specifications. In practice, this means the ability to restore the efficiency of the factory system without the need to use replacements with uncertain fitment.

This type of harness is suitable both for replacing a damaged section of the installation (e.g., after wire chafing in the grommet) and for post-collision repairs when it is necessary to restore connections in the rear part of the body.

Professional use in service and repairs

The rear door wiring harness for Audi A3 8V and A5 8T is particularly useful in professional workshops specializing in automotive electronics as well as in body and paint shops. It enables:

• efficient restoration of the factory wire routing after bodywork repairs,
• reduction of time-consuming work related to reconstructing individual wires,
• maintaining compliance with Audi service documentation,
• preserving aesthetics and order in door cavities and grommets.

By using an original harness, it is easier to diagnose potential faults in the future, as the layout of wires and connectors remains consistent with factory diagrams.

Expanding the installation in the wires and harnesses group

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

For drivers who are also considering improving the ergonomics and appearance of the cabin, inspiration can be found in an article describing the possibilities of interior personalization using used components – more information can be found in the material Car interior tuning with Global Parts.