At The Gas Station; Practical Hints; Fuel Filler Flap; Locking/Unlocking - Mercedes-Benz 2010 GLK-Class Operator's Manual

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.
Locking/unlocking the vehicle with the
SmartKey or KEYLESS-GO automatically
locks/unlocks the fuel filler flap.
i
In case the central locking system does
not release the fuel filler flap, see "Fuel filler
Y
flap" ( page 301).
The fuel filler flap is located on the right-hand
side of the vehicle towards the rear.
X
Turn off the engine.
i Leaving the engine running and the fuel
filler cap open can cause the yellow engine
malfunction indicator lamp ; to
illuminate.
For more information, see also "Practical
hints" ( Y page 295).
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

At the gas station

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 ;.
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 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." (
Check the following:
Engine oil level ( Y page 215)
R
Tire inflation pressure (
R
Coolant level ( Y page 216)
R
Vehicle lighting ( Y
R
Washer system and headlamp cleaning
R
Y
system ( page 217)
Brake fluid ( Y page 217)
R
Y page 334).
Y page 221)
page 303)
213
Z