How can I change the transmission fluid on my Audi 80 efficiently?

I have been experiencing some issues with gear shifting and want to perform a transmission fluid change on my Audi 80. What is the best method to do this without causing any damage and ensuring proper maintenance?

The most efficient way to change the transmission fluid on your Audi 80 is to use a pump or siphon to extract the old fluid from the reservoir, then refill with new fluid. Be sure to also change the filter and gasket to ensure clean and smooth gear shifting. You can also consult your owner's manual for specific instructions and recommended fluids.