How do I troubleshoot a clicking noise in my Audi 80's engine?

I recently noticed a strange clicking noise coming from my Audi 80's engine. What could be causing this and how should I go about fixing it?

It's possible that the clicking noise is coming from a malfunctioning valve or a loose timing belt. I recommend taking your car to a mechanic for a thorough inspection and repair.

If the clicking noise only occurs when the engine is cold, it could be a sign of low oil levels. Check your oil levels and top up if necessary. If the noise persists, it's best to get it checked by a professional.