Why does my Audi A6's engine produce strange noises?

I've noticed that my Audi A6's engine has been making some odd sounds lately. It seems to come primarily from the front of the car and happens when the engine is idling. What could be causing this and how can I fix it?

It sounds like your engine may have a faulty timing belt or tensioner. This is a common issue with Audi A6s and can be fixed by a certified mechanic. I recommend taking your car to a reputable dealership or mechanic to have it inspected and repaired.