Mercedes-Benz S-Class 2020 Owner's Manual page 497

494 Technical data
In some countries, the fuel available may not
have sufficient additives. Residue could build up
in the fuel injection system as a result. In this
case, in consultation with a Mercedes-Benz
service centre, mix the fuel with the cleaning
additive recommended by Mercedes-Benz.
Observe the notes and mixing ratios indicated
on the tank.
Information on fuel grades for vehicles with
a diesel engine
General notes
Observe the notes on operating fluids
( page 491).
/
& WARNING Risk of fire from fuel mixture
If you mix diesel fuel with petrol, the flash
point of the fuel mixture is lower than that of
pure diesel fuel.
Never refuel using petrol in diesel
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engines.
Never mix petrol with diesel fuel.
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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.
Vehicles with a diesel particulate filter
Only refuel using sulphur-free diesel
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fuel that conforms to European stand‐
ard EN 590, or an equivalent specifica‐
tion.
In countries without sulphur-free diesel
fuel, refuel using only low-sulphur diesel
fuel with a sulphur content less than
50 ppm.
Vehicle without diesel particulate filter:
refuel using only diesel fuel with a sul‐
#
phur content less than 500 ppm.
Never refuel with one of the following fuels:
petrol
R
marine diesel
R
heating oil
R
pure fatty acid methyl ester or vegetable
R
oil
paraffin or kerosene
R
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 indication for fuel
applies to your vehicle:
1 For diesel fuel with a maximum of 7% by vol‐
ume bio-diesel (fatty acid methyl ester)