How to troubleshoot an engine knocking noise in an Audi?

I recently noticed a knocking noise coming from the engine of my Audi. What could be causing this and how can I fix it?

The knocking noise could be due to a variety of reasons such as worn engine bearings, low oil pressure, or a faulty fuel injector. It is recommended to take your car to a trusted mechanic for proper diagnosis and repair.

Make sure to use high quality oil and regularly change it according to the manufacturer's recommendation. This can prevent engine knocking and maintain optimal engine performance.

Try using a higher octane fuel as lower octane fuels can sometimes cause engine knocking. It's also a good idea to check the ignition timing and make sure it is set correctly.