Why does my Audi 80 engine shake when idle?

I've noticed that my Audi 80's engine begins to shake when it's in idle mode. It's been happening consistently for the past week and I'm not sure what could be causing it. Any ideas on what could be wrong and how to fix it?

Based on the information provided, it sounds like your engine may have a misfire or a faulty spark plug. I recommend taking your car to a trusted mechanic to get it checked out as soon as possible to prevent any further damage to your engine.