Mercedes-Benz 2007 CLK 350 Operator's Manual page 314

Take off cap and set it in direction of
arrow 2 in the recess on the fuel filler
flap.
To prevent fuel vapors from escaping
into open air, fully insert filler nozzle
unit.
Only fill your tank until the filler nozzle
unit cuts out – do not top up or
overfill.
Warning!
Overfilling of the fuel tank may create
pressure in the system which could cause a
gas discharge. This could cause the gas to
spray back out when removing the fuel
pump nozzle, which could cause personal
injury.
Replace fuel cap by turning it clockwise
until it audibly engages.
i
Make sure to close the fuel filler flap before
locking your vehicle as the flap locking pin
prevents closing after you have locked the
vehicle.
Close fuel filler flap.
i
Only use premium unleaded gasoline with a
G
minimum Posted Octane Rating of 91 (average
of 96 RON/86 MON).
Information on gasoline quality can normally be
found on the fuel pump.
For more information on gasoline, see "Premium
unleaded gasoline" ( page 475) or the Factory
Approved Service Products pamphlet.
i
Leaving the engine running and the fuel cap
open can cause the ú malfunction indicator
lamp (USA only) or the ± malfunction indica-
tor lamp (Canada only) to illuminate.
More information can be found in the "Practical
hints" section ( page 369).
Operation
At the gas station
313