What is causing strange noises in my Audi 80 engine?

I have noticed strange grinding noises coming from my Audi 80's engine when I start the car. However, the noise disappears after a few minutes of driving. What could be causing this and how can I fix it?

It is likely that your engine is experiencing a problem with its belts or pulleys. These components can wear out over time and cause strange noises. You should have these checked and replaced if necessary by a qualified mechanic as soon as possible to avoid any further damage to your engine.