Why does my Audi A7's engine sometimes make a rattling noise on cold mornings?

I recently noticed that, on cold mornings, my Audi A7's engine makes a rattling noise for the first few minutes of driving. It eventually goes away, but I'm worried it might be a sign of a larger issue. Has anyone experienced this and know what could be causing it?

The rattling noise is most likely caused by a worn timing chain. This is a common issue in Audi A7s, but it's nothing to be too concerned about. You should take your car to a mechanic to have it checked out, but in the meantime, avoid revving your engine until it warms up.