What causes engine stalling in an Audi 80?

I've been experiencing frequent stalling while driving my Audi 80, especially at low speeds. What could be causing this issue?

One of the common causes of engine stalling in Audi 80s is a dirty or faulty idle control valve. This valve controls the amount of air that enters the engine at idle, and if it becomes dirty or fails, it can cause stalling.

Another possible cause could be a vacuum leak in the engine system, which can disrupt the proper air-fuel mixture and lead to stalling. Have a mechanic check for any leaks and fix them if found.