What causes the engine failure in the Audi 80?

I have been experiencing engine failure in my Audi 80 and I am unsure of the cause. It started suddenly and now my car won't start at all. Can someone provide insight into the possible causes? Thank you.

Based on your description, it sounds like the issue could be with your car's fuel pump. When the fuel pump fails, it can prevent the engine from getting the necessary fuel to start. I suggest getting it checked and replaced if necessary.