2009 Mercedes R-Class Owner's Manual - Page 248
2009 Mercedes R-Class Manual
Page 248 highlights
Operation At the gas station i Gasoline engine: 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 (gasoline engine)" (Y page 403), see "Fuel requirements" (Y page 403), or contact an authorized Mercedes-Benz Center, or visit www.mbusa.com (USA only). i Diesel engine: Only use commercially available vehicular ULTRA-LOW SULFUR DIESEL FUEL (15 ppm SULFUR MAXIMUM). Information on diesel 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 diesel fuels, see "Fuel requirements" (Y page 403), or contact an authorized Mercedes-Benz Center, or visit www.mbusa.com (USA only). i Diesel engine: If you have driven the vehicle until the tank is empty, the fuel system needs to be bled (Y page 374). The fuel filler flap is located on the right-hand side of the vehicle towards the rear. Locking/unlocking the vehicle with the SmartKey automatically locks/unlocks the fuel filler flap. i In case that the central locking system does not release the fuel filler flap, see "Fuel filler flap" (Y page 354). 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 348). 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. Opening: Press fuel filler flap 1 at the point indicated by the arrow. Turn fuel filler cap 2 counterclockwise. Take off fuel filler cap 2. X X X ! The fuel filler cap is tethered to the fuel filler neck. Do not drop the cap. It could damage the vehicle paint finish. 1 Fuel filler flap 2 Fuel filler cap X X X X Set fuel filler cap 2 on fuel filler flap 1. Fully insert filler nozzle unit and refuel. Only fill your tank until the filler nozzle unit cuts out - do not top off or overfill. Turn off the engine. 246