2006 Mercedes SLK-Class Owner's Manual - Page 306

Operation At the gas station Remove the SmartKey from the starter switch. Open fuel filler flap by pushing at point indicated by arrow 1. The fuel filler flap springs open. Turn fuel filler cap counterclockwise and hold on to it until possible pressure is released. Take off fuel filler cap and set it in direction of arrow 2 in the recess on the inside of fuel filler flap. To prevent fuel vapors from escaping into open air, fully insert filler nozzle unit. Only fill your tank until the filler nozzle unit cuts out - do not top up or overfill. Check regularly and before a long trip Warning! G 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 filler cap by turning it clockwise until it audibly engages. Close the fuel filler flap. Engine compartment (SLK 350, example) i Leaving the engine running and the fuel cap open can cause the yellow fuel tank reserve warning lamp to flash and the ? malfunction indicator lamp (USA only) or the ± malfunction indicator lamp (Canada only) to illuminate. For more information, see "Practical hints" ( page 364). 1 Windshield washer system and headlamp cleaning system* reservoir 2 Brake fluid reservoir 3 Coolant expansion tank i For opening the hood, see "Hood" ( page 307). 305