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273Checking and refilling levels
CAUTION
● The vehicle is not prepared for the use of biodiesel. Never, under any
circumstances refuel with biodiesel. It could damage the fuel system and
subsequently lead to engine faults!
● The addition of biodiesel to diesel by the diesel producer according to
Standard EN 590 or other equivalent (DIN 51628 in Germany, for example)
is authorised and causes no type of damage to the engine or the fuel sys-
tem.
● The diesel engine has been designed for to use diesel fuel exclusively.
Therefore, never use petrol, fuel oil or other unsuitable fuels. The composi-
tion of these fuels may significantly damage the fuel system and the en-
gine.
● The use of diesel fuels with a high sulphur percentage could considera-
bly reduce the service life of the diesel particulate filter. Your Technical Serv-
ice will be able to tell you which countries have diesel with a high sulphur
content.
Information on fuel consumption
The consumption and emission values indicated do not refer to one specific
vehicle. They are only to be used to compare the values of the different ve-
hicle versions. The fuel consumption and CO
2
emissions of a vehicle not on-
ly depend on the effective use of fuel. They also depend on your driving
style and other non-technical factors.
Calculation of fuel consumption
Fuel consumption and emission values are determined according to the cur-
rent version of the 715/2007/EC or 80/1268/EEC regulation and are valid
for the vehicle kerb weight. The specifications do not refer to an individual
vehicle. Two measuring cycles are carried out on a rolling road test bed to
calculate fuel consumption. The test criteria are as follows:
Urban cycle
Measurement of the urban cycle starts with an engine cold
start. City driving is then simulated at between 0 and 50 km/
h (30 mph).
Road cycle
In the road cycle simulation, the car undergoes frequent ac-
celeration and braking in all gears, as in normal everyday
driving. The road speed ranges from 0 to 120 km/h (0 to
70 mph).
Combined
The average combined consumption is calculated with a
weighting of around 37 % for the urban cycle and 63 % for
the road cycle.
CO
2
emis-
sions of the
combination
The exhaust gases are collected during both driving cycles
to calculate carbon dioxide emissions (urban and road). The
gas composition is then analysed to evaluate the CO
2
con-
tent and other emissions.
Note
● The kerb weight may vary according to the vehicle equipment. This
could raise consumption and the CO
2
emissions slightly.
● In practice, consumption values could be different to the values calcula-
ted based on the 715/2007/EC or 80/1268/EEC regulations.
Safety First Operating instructions Practical tips Technical Specifications
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