Mercedes Benz—Sprinter Van, type 906, with engine OM646—Replace Oil Separator and Flash Engine ECU
What are the defects?
The fleece filter insert in the oil separator of the engine breather system could become blocked with residues over time and cause the crankcase to become pressurised. Should this occur, engine oil may be forced out into the engine compartment and come into contact with the hot engine components.
What are the hazards?
What should consumers do?
Make arrangements with their authorised Mercedes-Benz Dealership to have the oil separator replaced with a cyclone type as a precautionary measure, and at the same time the software in the engine control unit optimised to the latest version. All work carried out will be free of charge.