Im back with my story.I try contact MBUSA one more time via email and i ask one more time for help with my gear shaft problem.After 5 days no answer.I call my mechanic and i make appointment for next tuesday for gear shift repair,plus new rotors and brakes pads.Total price 4500 dollars.Next couple days i let this problem go out of my head,but after i receive some mail to my post box from MB dealer(same dealer who make diagnostic)how they want to fix my car and how they appreciate do bussines with me and other bs i said that's enough.One day in the morning i ask my wife if that check engine light was on when she drive from work.She said no.I wake up 8am in the morning and start our E550 and after 2 minutes driving that light come back again.I sit in my car and i was thinking what to do to make that light disapear.I try pushing my start button on and of and after couple minutes that light disapear.I drive slowely to MB dealer(but diferent one,not where they find my car need 6 thousand dollars repair) where i ask for manager.Some guy show up with question how they can help me.I said I have 2007 E550 and i want trade in for 2010 E350 sport,fully loaded with all options possible.Thay show me few cars,but one missing trunk spoiler,other have no led fog lights etc,I said Im looking for P2 package,sport package,black and black 4 matic.They said its very rare ,but they make few phone calls and they find one car in other MB location.They want me wait few minutes and they want to see my car and give me trade in price.When some guy take my car for drive test and other guy take 15 second look around they offer me decent money(normaly i never say yes to offer like that,but i count their offer plus 4500 dollars what i must pay for repair) and i find out that offer is good deal for me.I take my car and i drive to other MB location to check that 2010 E350 sport package,P2 package.After i see that car i was fall in love.Absolutely beautiful.Now i have mercedes with warranty till 2017 or 135 thousand miles and Im happy.Sorry for my terible english i hope you understand.Roman