Why does my Audi A4's engine stall while idling?

I noticed that my Audi A4's engine tends to stall while I'm idling at a stop light or in traffic. What could be causing this issue and what should I do to fix it?

It's possible that your fuel injector may be clogged or malfunctioning. This can affect the engine's performance and cause it to stall while idling. I recommend getting it checked and cleaned or replaced if necessary.

Another potential cause could be a faulty sensor or sensor connection. This can disrupt the engine's fuel mixture and cause it to stall. You should have a mechanic check for any error codes and replace any faulty sensors.

In some cases, a dirty air filter can also cause engine stalling. Make sure to regularly replace your air filter to keep your engine running smoothly.