Why is the BMW 4 Series engine making a strange knocking sound?

I have a BMW 4 Series and recently I noticed that the engine is making a strange knocking sound. It happens mostly when I accelerate. What could be the cause of this and how can I fix it?

The strange knocking sound could be caused by a number of factors including low oil levels, worn out spark plugs or a malfunctioning fuel injection system. It is important to get your car checked by a certified mechanic to accurately diagnose the issue and avoid any further damage to your engine.

I had a similar issue with my BMW 4 Series and it turned out to be a faulty timing chain. It is a common problem with these models and can be quite costly to fix. Make sure to regularly maintain your car and replace parts when necessary to avoid such issues in the future.