Why does my Audi A1 engine turn off while idling?

I've noticed that my Audi A1 tends to shut off automatically while idling, specifically when I'm stopped at a red light or in heavy traffic. It's quite worrisome and I'm not sure why it's happening. Any insights or solutions?

The most common reason for an engine to turn off while idling is due to a faulty or dirty idle control valve. This component is responsible for regulating the engine's idle speed, and if it gets clogged or malfunctions, it can lead to the engine shutting off. Try cleaning or replacing the idle control valve to see if it resolves the issue.

Another potential cause could be a dirty or clogged fuel filter. This can restrict the flow of fuel to the engine, causing it to stall. Have your fuel filter checked and replaced if necessary.