What are the common issues with the Audi 80 transmission and how can they be prevented?

I have noticed some unusual shifting and hesitation in my Audi 80's transmission. How can I troubleshoot and prevent these issues?

The most common issue with the Audi 80 transmission is a faulty torque converter. This can cause difficulty shifting and a noticeable lack of power. To prevent this, make sure to regularly check your transmission fluid and have it flushed every 30,000 miles.