Why is the engine in my BMW X3 making strange noises?

I recently noticed that my BMW X3's engine is making strange noises. It's not the usual purring sound and it's starting to worry me. How do I know if there's a serious issue?

First, check the oil level and make sure it's at the recommended level. Low oil levels can cause strange engine noises. If the oil level is good, it's best to take your car to a mechanic for a proper diagnosis.

Another common cause of unusual engine noises is a faulty spark plug. If it's been a while since you've had your spark plugs replaced, it might be a good idea to have them checked.

It's also possible that your engine is overheating, causing it to make strange noises. Check your coolant level and make sure there are no leaks in the system.