Why is my BMW X8 engine making a knocking noise?

I recently purchased a BMW X8 and I've noticed that the engine makes a loud knocking noise when I accelerate. What could be causing this and what should I do?

This could be due to a few different reasons. One possibility is that the oil level in your engine is low, causing friction and the knocking sound. I recommend checking your oil level and topping it up if needed.

Another potential cause could be a faulty fuel injector. This can result in a knocking noise and can also negatively impact your BMW's performance. I suggest bringing it to a certified BMW mechanic to have it checked and replaced if necessary.