Fuel additives
Unleaded petrol in accordance with the EN 228 standard 1)
meets all the condi-
tions for a smooth-running engine. We therefore recommend that no fuel ad-
ditives are used. This can result in considerable damage to parts of the engine
or the exhaust system.
CAUTION
■ Even one filling of the tank with petrol that does not meet the standards can
lead to serious damage to parts of the exhaust system!■
If a fuel other than unleaded fuel which complies to the above mentioned
standards (e.g. leaded petrol) is put in the tank by mistake, do not start the en-
gine or switch on the ignition. Extensive damage to engine parts can occur.
CAUTION
■ If petrol with a lower octane number than the one prescribed is used do not
drive with a high engine speed. A high engine load can severely damage en-
gine components.■
Even in the event of an emergency, petrol of a lower octane number than 91
RON must not be used, otherwise the engine can be severely damaged.
CAUTION
In no case may fuel additives with metal components be used, especially not
with manganese or iron content. There is a risk of causing severe damage to
parts of the engine or exhaust system.
CAUTION
Fuels with metal components, such as LRP (lead replacement petrol) must
not be used. There is a risk of causing severe damage to parts of the engine
or exhaust system.
Note
■ Unleaded petrol that has a higher octane number than that required by the
engine can be used without limitations.■
On vehicles using prescribed unleaded petrol of min. 95 RON, the use of pet-
rol with a higher octane number than 95 RON can increase the power and re-
duce fuel consumption.
Refuelling CNG (compressed natural gas)Fig. 104
Natural gas filler tubes
Read and observe
and on page 102 first.
Natural gas refuelling can be carried out if the following condition is fulfilled. The engine and the ignition are switched off.
The gas filler tube for refuelling with natural gas is located behind the fuel fill-
er flap next to the petrol filler tube.
The filling couplings of the natural gas refuelling systems may differ in han-
dling. When refuelling with natural gas at unfamiliar refuelling systems, you
should seek help from trained fuel station staff. If unsure, have the refuelling
done by trained fuel station staff.
Open fuel filler flap
›
Open the fuel filler flap.
›
Remove cap
A
» Fig. 104 from gas filler tube
B
in the direction of the arrow.
›
Plug the filling coupling of the refuelling system on the gas filler tube
B
.
The fuel tank is full when the compressor of the refuelling system automati-
cally switches off. To stop the refuelling operation prematurely, press the
“Stop ” button of the refuelling system.
Closing the filler cap
›
Check that the sealing ring
C
» Fig. 104 has remained inserted in the gas fill-
er tube.
If the sealing ring
C
has slipped onto the filling coupling, reinsert it into the
gas filler tube.
1)
In Germany, DIN 51626-1 or E10 for unleaded gasoline with octane number 95 and 91.
104General Maintenance
