Why is my Audi A4 making a loud noise when I turn it on?

I recently bought an Audi A4 and noticed that when I turn it on in the morning, it makes a loud noise that goes away after a few minutes. It doesn't happen every time, but when it does, it's concerning. What could be causing this?

It sounds like your car could be experiencing a faulty starter or starter motor. This is a common issue in many vehicles, including the Audi A4. It's best to take it to a certified mechanic to diagnose and fix the issue.

This could also be a sign of a failing battery. Even if your car starts, a weak battery can cause unusual noises when starting up. It's worth getting your car's battery tested to rule out this possibility.