2008 Mercedes C-Class Owner's Manual - Page 324

Operation At the gas station For more information on gasoline or E85, see "Premium unleaded gasoline" ( page 481) or the Factory Approved Service Products pamphlet (USA only) in your vehicle literature portfolio, or contact an authorized Mercedes-Benz Center. The fuel filler flap springs open. Turn the fuel cap counterclockwise and hold on to it until possible pressure is released. Take off the fuel filler cap and set it in the direction of arrow 2 and place it into holder 4 located on the inside of the 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 off or overfill. Warning! Replace the fuel cap by turning it clockwise until it audibly engages. i Make sure to close the fuel filler flap before locking your vehicle as the flap locking pin prevents closing after you have locked the vehicle. Turn off the engine. Vehicles with automatic transmission*: Move the gear selector lever to position P ( page 140). Remove the SmartKey from the starter switch. Vehicles with SmartKey with KEYLESS-GO*: Turn off the engine by pressing the KEYLESS-GO* button once. Open the driver's door (this puts the starter switch in position 0, same as with the SmartKey removed from the starter switch). The driver's door then can be closed again. Open the fuel filler flap by pushing at the point indicated by arrow 1. Close the fuel filler flap. You should hear the latch close shut. i Leaving the engine running and the fuel cap open can cause the yellow engine malfunction indicator lamp ± to illuminate. For more information, see the "Practical hints" section ( page 378). 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. 323