What are the common issues with the Audi 80's engine?

I've been experiencing some problems with my Audi 80's engine recently. It's making odd noises and has been losing power. What could be causing this and how can I fix it?

It sounds like your engine has a faulty spark plug or a clogged fuel filter. I would recommend taking it to a mechanic to have it checked and to get it fixed. Keeping up with regular maintenance can prevent these issues.

Your Audi 80's engine is known to have timing belt issues. It's important to replace the timing belt before it breaks, as it could cause major damage to the engine. I suggest bringing it to a trusted mechanic for a timing belt replacement.

I had a similar issue with my Audi 80's engine and it turned out to be a faulty oxygen sensor. If you're experiencing a decrease in fuel efficiency and unusual engine performance, it could be due to a malfunctioning sensor. It's important to get this fixed as soon as possible.