2004 Mercedes E-Class Owner's Manual - Page 279

Operation At the gas station Warning! G i Use only premium unleaded gasoline with a minimum Posted Octane Rating of 91 (average of 96 RON/86 MON). Information on gasoline quality can normally be found on the fuel pump. More information on gasoline can be found in the Factory Approved Service Products Pamphlet. Check regularly and before a long trip Overfilling of the fuel tank may create pressure in the system which could cause a gas discharge. This could cause the gas to spray back out when removing the fuel pump nozzle, which could cause personal injury. Replace the fuel cap by turning it to the right. You will hear when the fuel cap is tightened. Close the fuel filler flap. i Leaving the engine running and the fuel cap open can cause the ? lamp to illuminate. 1 Windshield washer and headlamp cleaning system* For more information on refilling the reservoir ( page 288). 2 Brake fluid More information on brake fluid can be found in the "Technical data" section ( page 403). 3 Coolant level More information on the coolant level ( page 285). 279