How do I diagnose a strange noise coming from my Audi 80's engine?

I recently purchased an Audi 80 and have noticed a strange noise whenever I am accelerating. It sounds like a clicking or knocking noise coming from the engine. How can I diagnose this issue and potentially fix it?

First, check your oil levels and make sure they are at the appropriate levels. Low oil can sometimes cause strange engine noises. If the oil levels are fine, then it could be an issue with the timing belt or valves. I would recommend taking your car to a trusted mechanic for a proper diagnosis and repair.