I use a shop in the NE bronx located at 4151 Boston Rd, right off Conner St. a couple of blocks off interstate 95. its called MBSR. Phone# (718-325-5833). He worked on my 02 Supercharged w210 E55 and im very happy with him. Its a strictly Mercedes-Benz shop, he uses the latest Mercedes STAR diagnostic tools ... you dont have to use him, but if your mechanic is stumped and cant figure out your problem then definitely go by and get an estimate and check him out. hes great with trouble shooting... the guys name is MIRO, you can tell him your Hus' Cousin and you want a discount...lol.. good luck..