Made the appt. to have the diagnostic check done on my car(rough idle still),Jan.22,at (Souverign MBZ,Bklyn,NY),dealer said because of the year and the history of these cars it's a 4 to 5 hr. job and I'm looking at $400. to $500. Does this sound right? I don't know, sounds awfully high AND this doesn't include actually FIXING the d**n car.