Audi A8 D4 Rear Bumper Parking Sensor Wiring Harness Loom 4H0971104C

Audi A8 D4 Rear Bumper Parking Sensor Wiring Harness Loom 4H0971104C is an original, factory-spec electrical installation designed to support the parking system in the rear of the vehicle. This component ensures a proper connection between the sensors and the control module, which translates into stable operation of the parking assistant. Thanks to the preservation of the factory harness geometry and proper wire routing, installation in the rear bumper is precise and repeatable.

Specifications and technical data

• SKU: 4H0971104K
• Mark: Audi
• Condition: Used
• OEM Part Number: 4H0971104K
• Substitutable numbers: 4H0971104K, 4H0 971 104 K, 4H0971104C, 4H0 971 104 C
• Location on the vehicle: Rear
• Part type: Sensor
• Category: Parking Sensors

Purpose and function in the PDC system

The presented harness is dedicated to the rear of the vehicle body, where it is responsible for communication between the parking sensors and the vehicle's electronics. A correctly selected PDC harness minimizes the risk of system errors, signal interference, and false alarms during maneuvering. In practice, this means more predictable operation of the parking assistant, which facilitates precise reversing and maneuvering in tight spaces.

Construction and fitment for Audi A8 D4

The rear bumper PDC harness has been designed specifically for the Audi electrical architecture, taking into account factory mounting points and wire routing. The connectors are prepared for compatibility with original parking sensors, allowing for plug-and-play installation without the need for modifications to the wiring. Such a solution reduces service time and minimizes the risk of installation errors. By maintaining proper circuit separation and wire shielding, the harness supports stable operation of the PDC system under typical operating conditions. This is particularly important in premium class vehicles, where repeatable response of driver assistance systems is expected.

Condition, service application, and benefits of installation

The offered harness is a dismantled, used part, which allows for an economical repair of the parking system while maintaining the manufacturer's original specifications. Replacing a damaged or corroded installation with a factory PDC harness helps eliminate common problems, such as:

• intermittent sensor operation during reversing,
• parking system error messages on the instrument cluster,
• lack of response from some sensors in the rear zone of the vehicle. Choosing an original harness for Audi allows for maintaining the consistency of the electrical installation, which is important for further diagnostics and potential future repairs. Factory connectors and wire lengths facilitate correct placement of the installation in the bumper, without tension or makeshift connections.

Integration with safety and comfort systems

A functional PDC system in the rear of the vehicle has a direct impact on daily operating comfort and safety during maneuvering. Properly working parking sensors support the driver when reversing in garages, underground parking lots, and narrow streets. A properly selected PDC harness is a key component that ensures stable power supply and signal transmission, which translates into predictable operation of the entire system. In the case of vehicles equipped with extensive assistance systems, maintaining the original electrical architecture is also important for the proper cooperation of the PDC with other comfort and safety functions.

Support with selection and additional materials

If you are planning a comprehensive repair or modernization of the rear bumper zone in your Audi and need other elements from the same group, such as additional harnesses, sensors, or mounting elements, check the available parts in the Audi parking sensors category. When selecting electrical installation components and other body parts, it is worth paying attention to the compatibility of the manufacturer's markings and vehicle specifications. A guide on safe online shopping and verifying components by OEM numbers may be helpful – you can find it in the article Online parts shopping without risk – how to check component compatibility by OEM numbers. If you are interested in the broader context of using original, used components in premium vehicle repairs, it is worth reading the material describing when it pays off to reach for factory parts from dismantling – more information can be found in the article Spider web on the windshield? Why it is better to choose a used original with the manufacturer's logo when replacing.