Mercedes-Benz C-Class-Saloon 2020 Owner's Manual page 435

432 Technical data
approved for your vehicle can be found on the
instruction label on the inside of the fuel filler
flap.
Fuel
Information on fuel grades for vehicles with
petrol engines
Observe the notes on operating fluids
( page 430).
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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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petrol 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.
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 10% ethanol by vol‐
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ume, e.g. E15, E20, E85, E100
petrol with more than 3% methanol by
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volume, 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 the ignition on.
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consult a qualified specialist workshop.
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The following compatibility indications for fuel
apply to your vehicle:
Internal use only
1 For petrol with maximum 5% ethanol by vol‐
ume
2
For petrol with maximum 10% ethanol by vol‐
ume
According to European standard EN 16942 you
can find the compatibility indications at the fol‐
lowing locations:
on the vehicle on the information label on the
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fuel filler flap ( page 172).
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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, this can produce unpleasant odours.