switch on the ignition. Otherwise the
incorrect or non-approved fuel will get into
the fuel lines. The fuel system must be
drained completely. Contact an authorized
Mercedes-Benz Center to have the fuel
system drained completely.
! 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 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 254), see “Fuel requirements”
(Y page 255), or contact an authorized
Mercedes-Benz Center, or visit
www.mbusa.com (USA only).
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.
iIn case the central locking system does
not release the fuel filler flap, see “Fuel filler
flap” (Y page 223).
XTurn off the engine.
iLeaving 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 218).
XRemove the SmartKey from the starter
switch.
XOpening: Press fuel filler flap : at the
point indicated by the arrow.
XTurn fuel filler cap ; counterclockwise.XTake off fuel filler cap ;.
! The fuel filler cap is tethered to the fuel
filler neck. Do not drop the cap. It could
damage the vehicle paint finish.
XPlace fuel filler cap ; in direction of arrow
into the holder.
XFully insert filler nozzle unit and refuel.XOnly fill your tank until the filler nozzle unit
cuts out – do not top off or overfill.
! When refueling the vehicle, make certain
that no gasoline comes into contact with
the rear side marker to prevent damaging
the lens.
XClosing: Turn fuel filler cap ; clockwise
until it audibly engages.
iMake sure to close the fuel filler flap
before locking your vehicle as the flap
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