Hi everyone,
As this is my first time posting on any threads or forums, I hope I am posting in the right place! Apologies if not.
I was driving home yesterday onto the motorway accelerating up to the speed limit. Next thing I know, my engine starts making this loud hammering sound at idle and when accelerating. I'm not sure exactly what has caused this and I intend taking it to a BMW garage ASAP. Just wondering if anyone might know what the cause is? I thought it might be the timing chain but I've honestly no idea. Thanks in advance!
Here's a short video of the sound
https://youtu.be/MeL1qQ6OxCw