Why does my Audi A6 engine fail to start after being parked for a long time?

I recently noticed that my Audi A6 has trouble starting after it has been parked for an extended period of time. It cranks but doesn't fully start until the second or third try. Any idea what could be causing this issue?

It is likely that your fuel system may have some issues, such as a clogged fuel filter or faulty fuel pump. I recommend getting your fuel system checked and serviced by a trusted mechanic.

Another possibility is a weak or dying battery. In extreme weather conditions, a weak battery can struggle to provide enough power to start your engine. Consider getting your battery tested and replaced if necessary.

Have you checked your spark plugs? These can wear out over time and may cause issues with starting your engine. Get them inspected and replaced if necessary to avoid potential future problems.