2011 Mercedes CLS-Class Owner's Manual - Page 179

219_AKB; 4; 54, en-US d2ureepe, 2009-05-11T16:21:02+02:00 - Seite 177 Version: 2.11.8.1 At the gas station Mercedes-Benz Center to have the fuel system drained completely. 177 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. Please contact gas station personnel in case labels on the pump cannot be found. For more information on gasoline, see "Premium unleaded gasoline" (Y page 299), see "Fuel requirements" (Y page 299), or contact an authorized Mercedes-Benz Center, or visit www.mbusa.com (USA only). Locking/unlocking the vehicle with the SmartKey or KEYLESS-GO automatically locks/unlocks the fuel filler flap. X 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 In case the central locking system does not release the fuel filler flap, see "Fuel filler flap" (Y page 263). The fuel filler flap is located on the right-hand side of the vehicle towards the rear. i Close the fuel filler flap before locking the vehicle. Otherwise the flap locking pin will prevent closing the fuel filler flap. X 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 296). Check the following: REngine RTire oil level (Y page 179) level (Y page 180) lighting (Y page 266) Z inflation pressure (Y page 185) RCoolant X Turn off the engine. RVehicle Operation ! To prevent damage to the catalytic converters, only use premium unleaded gasoline in this vehicle. Any noticeable irregularities in engine operation should be repaired promptly. Otherwise, excessive unburned fuel may reach the catalytic converter, causing it to overheat and potentially start a fire. i Leaving the engine running and the fuel filler cap open can cause the yellow fuel tank reserve warning lamp to flash and the malfunction indicator lamp = (USA only) or ; (Canada only) to illuminate. For more information, see also "Practical hints" (Y page 257). X 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 ;.