Why does my Audi A2 keep stalling when idling outside in cold weather?

I have noticed that when the temperature drops below 5 degrees Celsius, my Audi A2 will consistently stall when idling for more than a few minutes. This only seems to happen when the car is outside, as I do not encounter this issue when parked in a heated garage. Are there any common causes for this issue?

This stalling issue is most likely caused by a malfunctioning idle control valve. In colder weather, the valve may become stuck or fail to open properly, leading to the stalling behavior you are experiencing. I recommend taking your car to a trusted mechanic to have the valve inspected and potentially replaced.