Where is the grounding wire located on the Audi Q5?

[McMary]

The grounding wire of the Audi Q5 is located on the right side of the engine hood, with a red buckle. Lifting it reveals the positive grounding wire. Function of the grounding wire: It utilizes the iron parts of the car to conduct electricity, thereby saving one wire. Grounding connects one of the DC electrodes (positive or negative) to the car's iron body, while the other electrode forms a circuit through the wiring and electrical equipment. This is the role of grounding. Grounding faults: Grounding faults are terms used in circuit troubleshooting, commonly encountered in the automotive repair industry. A grounding fault occurs when a non-grounded wire (or terminal) in the car's electrical equipment circuit directly contacts the frame, causing a short circuit between the positive and negative poles at that point. Minor grounding faults can lead to car leakage, draining the battery, while severe grounding faults can damage the power source (including the battery and generator), burn out the wiring, or even cause a fire.