Mercedes-Benz GLB 2021 Series Operator's Manual page 165

To avoid creating another electrostatic
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charge, do not get into the vehicle again
during the refueling process.
* NOTE Damage caused by the wrong fuel
Vehicles with a gasoline engine:
Even small amounts of the wrong fuel could
result in damage to the fuel system, the
engine and the emission control system.
Only refuel with low-sulfur unleaded
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fuel.
This fuel may contain up to 10% ethanol. Your
vehicle is suitable for use with E10 fuel.
Never refuel with one of the following fuels:
Diesel
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Gasoline with more than 10% ethanol by
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volume, e.g. E15, E85, E100
Gasoline with more than 3% methanol by
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volume, e.g. M15, M30, M85, M100
Gasoline with additives containing metal
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If you have accidentally refueled with the
wrong fuel:
Do not switch the ignition on.
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Consult a qualified specialist workshop.
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* NOTE Do not use diesel to refuel vehi‐
cles with a gasoline engine
If you have accidentally refueled with the
wrong fuel:
Do not switch the ignition on. Otherwise
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fuel can enter the engine.
Even small amounts of the wrong fuel
could result in damage to the fuel system
and the engine. The repair costs are high.
Consult a qualified specialist workshop.
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Have the fuel tank and fuel lines
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drained completely.
Driving and parking 163
* NOTE Damage to the fuel system caused
by overfilled fuel tanks
Only fill the fuel tank until the pump
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nozzle switches off.
If you have added too much fuel because of a
defective filling pump, for instance:
Do not switch the ignition on.
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Consult a qualified specialist workshop.
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* NOTE Fuel may spray out when you
remove the fuel pump nozzle
Only fill the fuel tank until the pump
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nozzle switches off.
Requirements:
The vehicle is unlocked.
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% Do not get into the vehicle again during the
refueling process. Otherwise, electrostatic
charge could build up again.
Observe the notes on operating fluids and fuel.