Why is my Audi A5 engine vibrating during idle?

I've noticed that my Audi A5's engine starts to vibrate when I come to a stop at a red light or stop sign. It's especially noticeable when the car is in gear. Is there something wrong with my engine or is my car just getting old?

Based on my experience with Audis, this could be caused by a dirty fuel injector. Try using a fuel injector cleaner to see if it helps. It's also a good idea to get your car's tune-up and spark plugs checked.

This could also be due to worn engine mounts, which can cause vibrations at idle. I would recommend getting your engine mounts inspected and replaced if necessary.