Why is my Nissan Micra's engine making a strange noise?

I recently noticed that my Nissan Micra's engine is making a weird noise when I start it. It goes away after a few minutes of driving, but I'm worried it might be a sign of a bigger problem. Has anyone else experienced this? What could be causing it?

It could be an issue with the belts in your engine. It's important to get it checked out by a mechanic as soon as possible before it escalates into a larger problem.

I had the same issue with my Micra and it turned out to be a problem with the exhaust system. It's best to take it to a trusted mechanic for a proper diagnosis.

I'm not a car expert, but it could be something as simple as a loose screw or bolt rattling around. Just to be safe, have a mechanic take a look to pinpoint the source of the noise.