Originally Posted by hapaschold
but whats wrong with the new v6 diesel ?
Its not rebuildable or easily repairable. Minor damage to any internal components requires entire engine replacement, internal components are not sold by Mercedes and the engine is not rebuildable. Any damage to the valve covers requires replacing the entire cylinder head.
Its designed around meeting world emissions standards, being low cost and fitting in multiple vehicle models. Longevity, power and fuel economy were not primary concerns when the engine was designed during the Chrysler era.
It requires balance shafts to reduce vibration.
The exhaust filter WILL need to be replaced at some point in the vehicle's life, costing over $4000.
Mercedes is currently 10 years behind in engine technology compared to BMW and VW.