Let me start by saying I am not an Audi tech, but I do have Audi manuals available to me, I will try to help you, but to look up the system I need to know which model you have A4, A6, or A8? Gas or diesel? Quattro or Avant quattro? Normally a no spark issue is a bad crankshaft position sensor. Also if you can, scan it for any codes and post them here. A cheap generic scantool will at least read P codes.