Audi A4 B8 Door Harness Loom Cable Wiring Rear 8K0971688S

Audi A4 B8 Rear Door Wiring Harness is an original electrical installation component designed for the rear of the body, specifically for Audi models. Thanks to its factory fit, the harness ensures stable electrical connections and proper cooperation with comfort modules and door equipment. This used component from the Wires, Harnesses, and Connectors category allows for a technically correct repair without the need for installation modifications.

Specifications and technical data

• SKU: 8K0971688S
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0971688S
• Substitutable numbers: 8K0971688S
• Location on the vehicle: Rear
• Category: Wiring Harnesses, Cables & Connectors

Purpose and Vehicle Placement

The presented wiring harness is intended for installation in the rear part of the vehicle, in the door area. It is responsible for transmitting signals and power between the body's electrical system and the electrical components located in the doors, such as window controls, central locking, or lighting. Vehicle Placement: Rear means that the harness's design is adapted in terms of length, connector layout, and wire routing for the rear section of the Audi A4 B8 body.

Construction and Technical Characteristics

The harness belongs to the Wires, Harnesses, and Connectors category, meaning it consists of a set of wires with appropriately selected cross-sections, insulation, and factory connectors. The connectors used are ready for direct connection to door modules and accessory components, without the need for soldering or creating adapters.

Key construction features:

• factory connectors matched to the Audi installation,
• wires routed in a single, organized bundle,
• insulation adapted for operation within the door and pillar space,
• branching layout consistent with the rear door equipment configuration.

This ensures the harness maintains consistency with the vehicle's original electrical architecture, reducing the risk of installation errors and diagnostic problems.

Benefits of Using an Original Audi Harness

Using an original wiring harness in an Audi A4 B8 translates into a number of practical benefits in daily operation:

• Compatibility with Vehicle Installation – matched connectors and wire lengths facilitate installation and subsequent service.
• Stable operation of comfort systems – proper signal transmission to rear door components reduces the risk of electrical faults.
• Ability to maintain factory wire routing – the harness follows the original mounting points in the body.
• Easier diagnostics – the original wire structure is consistent with Audi service diagrams.

This solution is particularly recommended for repairs after mechanical damage to the harness, wire corrosion, or problems with intermittent circuits in the door grommet.

Product Condition and Service Application

The offered wiring harness is a used component, which in practice means the possibility of an economical repair of the installation while maintaining the original manufacturer's specifications. This type of component is often chosen in situations where:

• damage to wires in the grommet between the pillar and the door has occurred,
• intermittent power or signal loss occurs in the rear door components,
• a complete harness replacement is necessary instead of spot repairs.

Replacing it with an original Audi harness allows for the restoration of correct electrical system operation without interfering with the installation's structure, which is beneficial both technically and for the subsequent resale of the vehicle.

Audi Wires, Harnesses, and Connectors – Selecting the Right Components

If you need other components from the wires and connectors category for your Audi, it is advisable to select them based on the manufacturer's markings, body version, and vehicle equipment. In our assortment, you will also find Audi Wires, Harnesses, and Connectors, making it easy to assemble the entire electrical installation set in one place.

For car owners who are also considering exhaust system modifications or are looking for information on installing used components, the following guide article may be helpful: Used Mini John Cooper Works Pro Sport Exhaust – A Legal Way to Get a Sporty Sound and +7 HP. The tips contained therein regarding the selection, compatibility, and installation of used parts may also be useful when planning other service work on the car.