Why does my Ford Focus engine make a rattling noise?

I have a 2015 Ford Focus and recently I've noticed a rattling noise coming from my engine. It seems to happen when the car is idling or when I accelerate from a stop. What could be causing this and is it something I should be concerned about?

It's most likely caused by loose engine mounts or heat shields. You should get it checked by a mechanic to avoid any further damage.

I had the same issue with my Ford Focus and it turned out to be a faulty belt tensioner. It's an easy and inexpensive fix, so I wouldn't worry too much.

Make sure to check your oil level and quality. Low or dirty oil can also cause engine rattling.