Why does my Audi A7's engine keep stalling while idling?

I recently purchased a used Audi A7 and have been experiencing issues with the engine stalling while idling. It doesn't happen all the time, but it's starting to become more frequent. I've changed the oil and checked the spark plugs, but the problem persists. What could be causing this issue?

It's possible that your Audi A7's idle control valve has become dirty or malfunctioning. This can cause the engine to stall while idling. You may need to have it cleaned or replaced by a mechanic.