Mercedes-Benz GLC 200 4MATIC Owner's Manual page 446

Flexible-fuel vehicles can be identified by the
Ethanol up to E85 sticker on the inside of the fuel
filler flap.
Depending on the country, the fuels you can use
in your vehicle may differ from the information in
the Owner's Manual. The fuels that have been
approved for your vehicle can be found on the
instruction label on the inside of the fuel filler flap.
Fuel
▌Information on fuel quality for vehicles with pet-
rol engines
Observe the notes on operating fluids
( page 441).
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* NOTE Damage caused by the wrong fuel
Even small amounts of the wrong fuel could
result in damage to the fuel system, the
engine and the emission control system.
Only refuel using unleaded, sulphur-free
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spark-ignition engine fuel that conforms
to European EN 228, or an equivalent
specification.
Fuel of this specification may contain up to
10% ethanol by volume. Your vehicle is suita-
ble for use with E10 fuel.
See the information label in fuel filler flap
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for other compatible fuels .
Never refuel with one of the following fuels:
Diesel
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Regular petrol with an octane number
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lower than 91 RON
Petrol with more than 3% methanol by vol-
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ume, e.g. M15, M30
Petrol with additives containing metal
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If you have accidentally refuelled with the
wrong fuel:
Do not switch on the vehicle.
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Consult a qualified specialist workshop.
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The following compatibility indications for fuel
apply to your vehicle:
Technical data 443
1 For petrol with a maximum of 5% ethanol by
volume
2 For petrol with a maximum of 10% ethanol by
volume
According to European standard EN 16942, you
can find the compatibility indications at the fol-
lowing locations:
On the vehicle on the information label in the
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fuel filler flap ( page 206).
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On the fuel pump or pump nozzle suitable for
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your vehicle throughout Europe.
If the available fuel is not sufficiently low in sul-
phur, it may produce unpleasant odours.