Observe the notes on operating fluids More.
Even small amounts of the wrong fuel could result in damage to the fuel system, the engine and the emission control system.
Fuel of this specification may contain up to 10% ethanol by volume. Your vehicle is suitable for use with E10 fuel.
diesel
regular petrol with an octane number lower than 91 RON
petrol with more than 10% ethanol by volume, e.g. E15, E20, E85, E100
petrol with more than 3% methanol by volume, e.g. M15, M30
petrol with additives containing metal
If you have accidentally refuelled with the wrong fuel:
on the instruction label on the fuel filler flap of your vehicle
on the fuel pump or pump nozzle suitable for your vehicle throughout Europe
If the available fuel is not sufficiently low in sulphur, this can produce unpleasant odours.
Recommended fuel: the recommended octane number for your vehicle can be found in the instruction label in the fuel filler flap More.
S 450 4MATIC, S 450, S 450 4MATIC Mercedes-Maybach: only refuel using super unleaded petrol with at least 98 RON , if you wish to achieve maximum engine output. Alternatively, you can also refuel using premium grade petrol with at least 95 RON .
All models: as a temporary measure, if the recommended fuel is not available, you may also use regular unleaded petrol with an octane number of at least 91 RON . This may reduce engine output and increase fuel consumption.
Never refuel using petrol with a lower RON .
at a filling station
at a qualified specialist workshop