Hello everyone new to this site..I just bought a 09 supercgarger with 28k ..live in north jersey..I actually traded in my S CLASS Benz and although I love the ride and power of the car I'm dissapointed with the computer system.. the voice phone tag greyed out on me after adding six people last week has not returned to normal. Also The check engine light pops on ever other y weeek for abt two days then goes off..did I get a mis treated jag or is this common? All replies are much appreciated.