How to change the transmission fluid on an Audi A2?

I need to change the transmission fluid on my Audi A2 and I'm unsure of what type of fluid to use and how to properly complete the process. Could someone give me some guidance on this?

According to Audi's official service manual, the recommended transmission fluid for the A2 is the G055025A2. If this is not available, an equivalent fully synthetic transmission fluid with a viscosity of 75W-90 can be used as well. Make sure to warm up your car before changing the fluid, as this will help with drainage and ensure all the old fluid is removed.