Why does my Audi A8 have a rough idle at startup?

I've noticed that when I start my Audi A8, it has a rough idle for a few seconds before smoothing out. What could be causing this issue?

This could be due to a dirty throttle body or faulty idle control valve. I recommend cleaning the throttle body and checking the idle control valve for any malfunctions.

Another possibility could be a vacuum leak. Check all hoses and connections for any signs of wear or cracks. Even a small leak can cause a rough idle.

It's also important to regularly maintain your spark plugs and ignition system. If they are worn or dirty, this could also lead to a rough idle.