Audi Q2 GA Rear Door Wiring Loom Harness Left Right N/O/S 81A971687J

Audi Q2 GA Rear Door Wiring Loom Harness Left Right is an original electrical installation component from the Wires, harnesses and connectors group, designed to support the rear doors on both the left and right sides. This used wiring harness allows for an economical yet professional repair of door circuits, maintaining the factory electrical architecture of the Audi vehicle.

Specifications and technical data

• SKU: 81A971687J
• Mark: Audi
• Condition: Used
• OEM Part Number: 81A971687J
• Substitutable numbers: 81A971687J, 81A 971 687 J
• Location on the vehicle: Rear, Right, Left
• Part type: Wire Harness
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the vehicle

The rear door wiring harness in the Audi Q2 GA is responsible for transmitting signals and power between the body and the modules and receivers located in the rear doors. The placement covers the rear left and right side of the vehicle, which enables the operation of both doors using a single, structurally matched harness.

This component is crucial for the proper operation of systems such as window controls, central locking, door lighting, or any sensors located in the door panel. Using an original Audi harness ensures compliance with the factory electrical diagram and minimizes the risk of communication issues between control modules.

Benefits of using an original Audi harness

Using a factory wiring harness in the Audi Q2 GA ensures:

• precise matching of wire lengths to the geometry of the rear doors,
• preservation of the original installation routing in the rear area of the vehicle,
• compatibility with factory connectors and control modules,
• reduction of the risk of installation errors and diagnostic problems.

As a result, the installation process is orderly, and the entire system remains consistent with Audi service documentation, which facilitates subsequent service and diagnostic work.

Condition of the component and service application

The harness is a used component, which allows for lower repair costs while maintaining the original design and connectors specified by the manufacturer. This type of solution is particularly beneficial for post-accident repairs, mechanical damage to door grommets, or issues with wire abrasion in the rear part of the vehicle.

In workshop practice, a used Audi door harness serves as a replacement for damaged sections of the installation when spot repair of wires is uneconomical or difficult to perform while maintaining appropriate connection reliability.

Professional installation and fitment

To fully utilize the potential of this component, installation by a person with experience in working with electrical installations in VAG group vehicles is recommended. Correct routing of the harness in the area of the rear doors, body, and rubber grommets reduces the risk of future mechanical damage and ensures stable operation of all connected receivers.

The harness, as a part from the Wires, harnesses and connectors group, constitutes a structural element of the installation – its correct positioning and fastening have a direct impact on the durability of the entire electrical system in the rear part of the Audi Q2 GA.

Expanding the installation in Audi – wires, harnesses and connectors

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

For users interested in a broader perspective on the subject of used components in drivetrains and related electrical installations, a guide describing the selection and assessment of second-hand components may be useful – detailed information can be found in the article Second-hand differential – what you need to know about used differentials, sensors, and drivetrain systems.