How can I troubleshoot a malfunctioning transmission in my Audi 80?

I am experiencing issues with my Audi 80's transmission and need some help troubleshooting. It seems to be slipping and making strange noises while shifting gears. What steps can I take to diagnose and fix the problem?

First, check the transmission fluid level and condition. Low or dirty fluid can cause transmission problems. If this is not the issue, it may be a faulty sensor or solenoid. I recommend taking your car to a trusted mechanic for further diagnosis.

It could be an issue with the transmission control module. Have a professional scan the system for any error codes and replace the control module if necessary.