2006 Model E225DHLSD Ser# 5136556 it has 90 hrs on it bought it asa a new unit in fall of 08 still under warrantee just want some input.

When I start the motor it will run for 30sec and stall I have to do this 5 or 6 times before it will stay running. It idels rough as well. Dealer says looks like an exhaust leak lot of black under the hood. He said he has seen this on a few other.