This OEM Door Wire / Wiring Harness, part number 8K0971029K, is an essential component located in the front, left side of Audi S4 (2009-2010) and A4/A4 Quattro (2009) models. Its primary function is to facilitate electrical connections between the door's electronic systems and the vehicle's central wiring harness. This wiring harness supports operations such as window control, door locking mechanisms, and speaker connections, ensuring optimal functionality of these features.
Common issues that necessitate a replacement include frayed wires, corrosion, or complete failure, which can result in inoperable windows or locks. By using a genuine OEM part, you ensure compatibility and reliability in your vehicle's electrical system.
