If there is no premium-grade unleaded
gasoline available and regular-grade
unleaded gasoline may be used; please
observe the following precautions:
R
only fill the fuel tank to half full with
regular-grade unleaded gasoline and fill
the rest with premium-grade unleaded
gasoline as soon as possible.
R
do not drive at the maximum speed.
R
avoid sudden acceleration.
R
if the vehicle is carrying a light load, e.g.
two passengers without luggage, do not
allow the engine to rev above
3,000 rpm.
R
if the vehicle is fully loaded or is being
operated in mountainous terrain, do not
depress the accelerator pedal further
than
Ô
of the pedal travel.
Fuel requirements
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.:
R
Ethanol
R
TAME
R
ETBE
R
IPA
R
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.:
R
knock resistance
R
boiling point
R
vapor pressure
Additives in gasoline
One of the major problems in engine design
is the creation of carbon deposits during the
process of burning fuel. Mercedes-Benz
recommends that you use fuel brands
containing additives that prevent the build-up
of carbon deposits.
If you use fuels without these additives for an
extended period of time, there may be a build
up of carbon deposits, especially on the inlet
valves and in the combustion chamber.
This could lead to engine problems, e.g.:
R
longer engine warm-up phase
R
uneven idle
R
engine noise
R
misfiring
R
loss of power
In areas where carbon deposits can build up,
because of the lack of availability of gasoline
with the corresponding additives, Mercedes-
Benz recommends the use of additives that
have been approved for Mercedes-Benz
vehicles.
Consult an authorized Mercedes-Benz Center
or go to the Internet site
http://bevo.mercedes-benz.com for a list
of approved products. Comply with the
instructions for use on the product label.
Do not mix other fuel additives with fuel. This
causes unnecessary costs and could damage
the engine.
!
Do not refuel with low-grade fuel and do
not use fuel additives that are not tested
and approved for Mercedes-Benz vehicles.
Damage to or malfunctions of the fuel
system may otherwise occur.
274
Service products and capacities
Technical data
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Страница 125: ...gear the selector lever must be moved towards D again Automatic transmission 123 Driving and parking Z ...
Страница 189: ...Useful information 188 Loading guidelines 188 Stowage areas 189 Features 193 187 Stowing and features ...
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Страница 211: ...Useful information 210 Engine compartment 210 Maintenance 215 Care 216 209 Maintenance and care ...
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Страница 284: ...Order no 6515 4133 13 Part no 463 584 28 72 Edition A 2012 É46358428722ËÍ 4635842872 ...