Audi A3 RS3 8V 5Dr Door Harness Loom Wiring Rear Left Right N/O/S 8V4971687L

The Audi A3 RS3 8V Left Right Rear Door Wiring Harness 5Dr is an original electrical installation component designed for the rear of Audi A3 and RS3 8V generation models. This product belongs to the Wires, Harnesses, and Connectors group and is designed for precise connection of all electrical consumers in the left and right rear doors. Thanks to its factory design, it ensures consistency with the vehicle's installation and stable operating parameters for electrical systems.

Specifications and technical data

• SKU: 8V4971687L
• Mark: Audi
• Condition: Used
• OEM Part Number: 8V4971687L
• Substitutable numbers: 8V4971687L, 8V4 971 687 L, 210394650517
• Location on the vehicle: Rear, Right, Left
• Part type: Wire Harness
• Category: Wiring Harnesses, Cables & Connectors

Purpose and Vehicle Placement

The wiring harness is prepared for installation in the left and right rear doors of a five-door body. It is responsible for transmitting signals and power between the main vehicle installation and the components located in the doors, such as actuators, control units, or auxiliary modules. Its placement in the rear of the vehicle requires appropriate wire shape and length, which in this component are factory-matched to the geometry of the Audi A3 / RS3 8V.

Technical and Functional Characteristics

As a component from the Wires, Harnesses, and Connectors group, this wiring harness is an integral part of the vehicle's installation, responsible for reliable transmission of control signals and power. The design includes appropriately spaced connectors, enabling correct connection with factory sockets in the doors and body. Using an original wiring harness minimizes the risk of installation errors, incorrect pin assignments, or communication problems between modules.

This solution is particularly important in vehicles equipped with extensive door electronics, where connection stability and proper wire shielding affect the correct operation of comfort and safety functions. Using a dedicated harness maintains the installation's consistency with Audi's factory electrical architecture.

Benefits of Using an Original Audi Wiring Harness

Using an original Audi component in the rear of the vehicle offers a number of practical benefits:

• precise fit to the door and body pillar construction,
• compliance with the factory electrical diagram,
• reduced risk of malfunctions due to incorrect wiring,
• easier diagnostics for future installation inspections.

This allows the wiring harness to be used both for replacing a damaged section of the installation and for modernization work on the rear doors, where maintaining factory manufacturing standards is required.

Product Condition and Service Application

The item is offered as a used wiring harness, allowing for economical installation repair while maintaining the original manufacturer's specifications. This type of solution is particularly beneficial in cases of mechanical damage to wires in door grommets or interference with the installation during previous repairs. Choosing an original harness from a dismantled vehicle allows for restoring correct wire routing without the need to create custom connections.

Expanding the Installation in the Rear of the Audi Body

If you are planning a comprehensive repair or modernization of the rear area of your Audi and need other components from the same group, such as additional wiring sections, connectors, or door installation fragments, check the available parts in the Audi Wires, Harnesses, and Connectors category.

If you are planning more extensive service work using used components, it is also worth familiarizing yourself with practical tips on selecting and installing used parts, which you can find in the article Volkswagen – Solidness and Reliability. Why are used VW parts a sensible choice?.