Why is the BMW X5 engine making a rattling noise?

I recently purchased a BMW X5 and have noticed a loud rattling noise coming from the engine. It seems to be worse when the car is idling or accelerating. What could be causing this sound and how can I fix it?

One possible cause of the rattling noise could be a loose exhaust component. It is important to have this checked by a mechanic as soon as possible, as a loose exhaust can lead to other problems with the car. It is also important to address this issue promptly to avoid potentially damaging the engine.

Another reason for the rattling noise could be a failing engine mount. This is a more serious issue that should be addressed immediately, as a broken engine mount can cause further damage to the engine and other components. Take your car to a trusted mechanic for an inspection and repair if necessary.