Updated Lubrication specs:

Your Mercedes-Benz requires specific fluids to avoid engine failure and maintain optimum performance. If the engine oil does not meet the standards for your vehicle, engine damage is possible — which is not covered by the Mercedes-Benz New Vehicle Limited Warranty. Please choose your vehicle's Model Year from the list for detailed information on the proper fluids for use in your vehicle.
Model Year
1997 and earlier
1998 to 2004
2005 and newer