2010 Mercedes C-Class Owner's Manual - Page 226

224 Engine compartment For more information, see also "Practical hints" (Y page 305). X RWasher RBrake system and headlamp cleaning system (Y page 228) fluid (Y page 228) Operation Remove the SmartKey from the starter switch. KEYLESS-GO: 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. X Opening: Press fuel filler flap : at the point indicated by the arrow. X Turn fuel filler cap ; counterclockwise. X Take off fuel filler cap ;. Engine compartment Hood G Warning! Do not pull the release lever while the vehicle is in motion. Otherwise the hood could be forced open by passing air flow. This could cause the hood to come loose and injure you and/or others. ! The fuel filler cap is tethered to the fuel filler neck. Do not drop the cap. It could damage the vehicle paint finish. X Opening G Warning! Do not open the hood when the engine is overheated. You could be seriously injured. Observe the coolant temperature gauge to determine whether the engine may be overheated. If you see flames or smoke coming from the engine compartment, move away from the vehicle. Wait until the engine has cooled. If necessary, call the fire department. Place fuel filler cap ; in direction of arrow into holder =. X Fully insert filler nozzle unit and refuel. X Only fill your tank until the filler nozzle unit cuts out - do not top off or overfill. X Closing: Turn fuel filler cap ; clockwise until it audibly engages. i Close the fuel filler flap before locking the vehicle. Otherwise the flap locking pin will prevent closing the fuel filler flap. X G Warning! Close fuel filler flap :. Check regularly and before a long trip For information on quantities and requirements of operating agents, see "Fuels, coolants, lubricants, etc." (Y page 349). Check the following: REngine RTire You could be injured when the hood is open - even when the engine is turned off. Parts of the engine can become very hot. To prevent burns, let the engine cool completely before touching any components on the vehicle. Comply with all relevant safety precautions. G Warning! oil level (Y page 225) level (Y page 227) lighting (Y page 313) inflation pressure (Y page 232) RCoolant RVehicle To help prevent personal injury, stay clear of moving parts when the hood is open and the engine is running. The radiator fan may continue to run for approximately 30 seconds or may even restart after the engine has been turned off. Stay clear of fan blades.