How to diagnose a problem with the gearbox in Audi 80?

My Audi 80 seems to be having issues with the gearbox. It's making strange noises and it's not shifting smoothly. I'm not sure what the problem could be and I don't want to spend a fortune on unnecessary repairs. Can anyone provide some insights on how to diagnose the issue and possibly even fix it myself?

Based on the symptoms you described, it sounds like your gearbox could be low on transmission fluid. I recommend checking the fluid levels and topping it off if necessary. If that doesn't solve the issue, it may be a more serious problem and I suggest taking it to a mechanic for a proper diagnosis.

I had a similar issue with my Audi 80 and it turned out to be a faulty sensor in the gearbox. I suggest getting your car scanned for any error codes and if a sensor is the culprit, it's a relatively easy and affordable fix.