2005 Audi A6 Quattro Q&A

2005 Audi A6 Quattro Question: engine light on dashboard , misfire on idle.

my a6 2005 , is running very smoth when driving , but on idle and at starting , I feel cuts, and almost wants to turn off ? I chages the spark plugs , the problem remains. what are the possibilities , is it an engine problem ? -
Answer 1
scan codes and post so we can adv -