why is my Audi leaking

Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. I'm sorry to hear you're having trouble with your A4. A leak near the driver's side tire, when parked, could come from a few sources. The location suggests it might be brake fluid, power steering fluid, or even coolant, depending on your car's specific routing of components. I recommend getting this inspected soon to prevent further damage. You may also see water dripping from the condensation drain of your car's HVAC system. If you need more advice, have any other questions about your vehicle, or would like to get connected to a RepairPal Certified shop near you, we have you covered. Give us a call at 877-913-1554, and we will happily help you out!