Fuel requirements
Gasoline engines
Use only premium-grade unleaded gasoline.
The octane number should be at least 91.
Details can be found on the gas pump. The
octane number is the average value of the
Research Octane Number (RON) and the
Motor Octane Number (MON): (RON +
MON) / 2, also known as knock resistance.
Reformulated Gasoline (RFG) and/or
unleaded gasoline with additives can be used
if the concentration of the additives in the fuel
does not exceed 10%, e.g.:
• Ethanol
• TAME
• ETBE
• IPA
• TBA
For MTBE, the concentration should not
exceed 15%.
The concentration of methanol in gasoline
including other additives must not exceed 3%.
Using mixtures of methanol and ethanol is not
permitted. Gasohol, a mixture of 10% ethanol
and 90% unleaded gasoline, can be used.
All of these mix fuels must fulfill the fuel
requirements, e.g.:
• knock resistance
• boiling point
• vapor pressure
Diesel engines – important safety notes
Only use commercially available ULTRALOW SULFUR DIESEL FUEL (ULSD, 15 ppm MAXIMUM SULFUR) that meets the ASTM D975 standard. Failure to use ULTRA-LOW SULFUR DIESEL FUEL (ULSD) can severely damage the vehicle's exhaust gas aftertreatment system.
Do not fill the tank with gasoline. Do not
blend diesel fuel with gasoline or kerosene.
Otherwise, the fuel system and the engine
could be damaged.
To prevent malfunctions, diesel fuel with improved flow characteristics is available in the winter months. Check with your gas station.
Information on the fuel grade can usually be found on the gas pump. If the information cannot be found on the gas pump, ask the gas station personnel. For further information, consult an authorized Mercedes-Benz Center or go to the Internet site http://www.mbusa.com (USA only).
Diesel engines – fuels containing biodiesel (FAME [fatty acid methyl ester])
Mercedes-Benz USA approves the use of B5 (ULSD with a maximum of up to five percent by volume biodiesel) for all diesel engines with common rail direct injection (CDI) and BlueTEC.
Pure biodiesel and diesel fuels that have a higher percentage of biodiesel, e.g. B20, can damage the fuel system and the engine and are therefore not approved.
For further information, please ask the gas station personnel. The label on the gas pump must indicate clearly that the B5 biodiesel blend fulfills the ULSD standard. If the label is not clear, do not refuel the vehicle.
Do not refuel your vehicle with fuels unless they have been approved by Mercedes-Benz.
See also:
SRS warning lamp
SRS functions are checked regularly when
you switch on the ignition and when the
engine is running. Therefore, malfunctions
can be detected in good time.
The SRS warning lamp in the
instrume ...
Refrigerant of the air-conditioning
system
The air-conditioning system is filled with
R134a refrigerant and a special PAG
lubricant.
Never use refrigerant R 12 (CFC) or
mineral lubricants. Otherwise, you could
damage the air-cond ...
Cleaning Night View Assist Plus
Never clean the camera lens. When
cleaning the field of vision of the driving
systems, make sure that you do not spray
glass cleaner on the camera lens. If the
camera lens is dirty, visit ...