How to Fix the Transmission in an Audi 80?

I have an Audi 80 and the transmission seems to be acting up. The gears are slipping and it's making a strange noise. What could be causing this and how can I fix it?

First, check the transmission fluid. If it's low, top it off. If it's dirty, it may need to be flushed and replaced. Dirty fluid can cause slippage and strange noises. If that doesn't fix the issue, it may be a worn or faulty solenoid. In that case, it's best to take it to a mechanic for a proper diagnosis and repair.

It could also be an issue with the clutch. Check for any signs of wear or damage and replace if necessary. If the clutch isn't the problem, it may be a worn or damaged gears or bearings. In that case, it's best to take it to a mechanic for further inspection and repair.