Why does my Audi 80 have a rough idle and how can I fix it?

I've noticed that my Audi 80 has been idling rough lately, with the RPMs jumping up and down. It's also hesitating when I accelerate. What could be causing this issue and how can I address it?

The most common cause of a rough idle and hesitation in an Audi 80 is a faulty Mass Air Flow (MAF) sensor. This sensor measures the amount of air entering the engine and if it's not working properly, the engine won't get the right amount of fuel. I recommend getting the MAF sensor checked and replaced if necessary.