MITCHELL 1 ARTICLE - TRACES OF OIL IN A... ENGINE 642 TECHNICAL SERVICE BULLETIN PDF

A service bulletin that addresses the issue of oil traces in the area of the oil cooler on Engine 642 of Mercedes-Benz vehicles. It details a complaint about oil leakage due to seal issues between the engine block and oil cooler. The bulletin suggests replacing the seals and highlights that the oil cooler itself is not the cause of the problem. Additionally, it includes images of old and new O-rings with part number specifications for proper replacement.