I am assuming it is the E320 M104 engine. If so, it is a great engine and very, very long lived. The engine will be one of the last things to wear in the car with the exception of the common head gasket leaks.

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Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record