2006 Mercedes CLS-Class Owner's Manual - Page 292

Operation At the gas station Warning! G i Only use 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. For more information on gasoline, see 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 gasoline fuel discharge. This could cause the gasoline fuel to spray back out when removing the fuel pump nozzle, which could cause personal injury. Replace fuel cap by turning it clockwise until it audibly engages. Close the fuel filler flap. i Leaving the engine running and the fuel cap open can cause the yellow fuel tank reserve warning lamp to flash and the ú malfunction indicator lamp (USA only) or the ± malfunction indicator lamp (Canada only) to illuminate. See also "Practical hints" section ( page 355). 1 Windshield washer and headlamp cleaning system* For more information on refilling the reservoir, see "Windshield washer system and headlamp cleaning system*" ( page 300). 2 Brake fluid For more information on brake fluid, see "Brake fluid" ( page 464). 3 Coolant level For more information on the coolant level, see "Coolant level" ( page 297). 291