What is the most common cause of ignition failure in an Audi 80?

I have been having issues with starting my Audi 80 lately. It seems to have trouble igniting and I have to try multiple times before it starts. Any idea what could be causing this?

The most common cause of ignition failure in an Audi 80 is a faulty ignition coil. It is responsible for converting low voltage battery power into high voltage energy to ignite the spark plugs. Check the condition of your ignition coil or have it tested by a professional mechanic to ensure it is functioning properly.