How do I properly diagnose and fix a faulty transmission on my Audi 80?

I've been noticing some strange shifting and jerking while driving my Audi 80. How can I determine the root cause of the issue and what steps should I take to fix it?

Based on your description, it sounds like your transmission may be slipping due to low transmission fluid. I recommend checking your fluid levels and topping off if needed. You may also want to consider getting a transmission fluid flush and filter replacement as preventative maintenance.