Look under the good MB technician board, where I have posted one of the most best techs in the NYC area (KRAFT MOTORS).
I dont know the phone # off the top of my head, but call 411 and give them the address. Talk to Steve, and tell him exactly what you've posted here--hes most likely gonna tell you to bring it in and have a look at it. I am positive he will find your problem
Stay off staten island with mechanics--almost all of them are crooks.
Monotoned Smoke Silver
97 Style Replica E420 Rims 205/55/16