Hi, I own a non-4matic E320 yr. 2000....at a recent trip to my local foreign car shop for a right Cat. Converter ($460 pts./lbr.) I was also informed that I needed a new ECU unit in order to take care of my ESP/BAS, ABS dash lights. The part he said was about $1200 w/ about $400 in labor. He said it would be best that the dealership take care of this since it was a complicated procedure ( i thought this was a pretty honest thing to do). My question is has anyone else had problems w/their ECU? And what did it cost to fix/replace the part?