■Lower than 91 octane petrol should not be used, even in an emergency!■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.
CAUTION
Petrol additives (additives)■Unleaded petrol complying with the EN 228 standard 1)
meets all the condi-
tions for problem-free engine operation. We therefore do not recommend mix-
ing fuel additives into the petrol - risk of engine damage or damage to the ex-
haust system.■
The following additives may not be used - risk of engine damage or damage
to the exhaust system! ■ Additives with metal components (metallic additives), in particular with
manganese and iron content.
■ Fuels with metallic content (e.g. LRP - lead replacement petrol).
Note
■Unleaded petrol that has a higher octane number than that required by the
engine can be used without limitations.■
The use of petrol with an octane rating higher than 95 RON does not result
in either a noticeable increase in power nor lower fuel consumption in vehicles
for which unleaded petrol 95/min 92 or 93 RON is specified.
■
On vehicles using the prescribed unleaded petrol of min. 95 RON, the use of
petrol with a higher octane number than 95 RON can lead to an increase in
power and reduction in fuel consumption.
Diesel fuel
Read and observe
and on page 123 first.
The correct fuel for your vehicle is specified on the inside of the fuel filler flap
» Fig. 143 on page 123 .
The vehicle can only be operated using diesel fuel that complies with the
standard EN 5902)
and contains a maximum 7% biodiesel (B7)3)
.
Operating under different weather conditions
Use only diesel in accordance with the current or expected weather conditions.
Ask the petrol station personnel whether the diesel fuel offered corresponds
to these conditions.
CAUTION
The following instructions must be observed, otherwise there is a risk of dam-
age to the engine and to the exhaust system.■
If a different fuel other than diesel fuel, which complies to the above men-
tioned standards (e.g. petrol) is used, do not start the engine or switch on the
ignition!
■
The biofuel RME must not be used!
CAUTION
Diesel fuel additives■The diesel fuel in accordance with the prescribed standards meets all the
conditions for a smooth running engine. Therefore, we recommend that you do
not add any fuel additives to the diesel - there is a risk of engine damage or
damage to the exhaust system.
Engine compartment
Introduction
This chapter contains information on the following subjects:
Opening and closing the bonnet
126
Engine compartment overview
127
Windscreen washer fluid
127WARNINGNever cover the engine with additional insulation material (e.g. with a cov-
er) – risk of fire! 1)
In Germany also DIN 51626-1 or E10 for unleaded petrol with octane number 91 or 95 or DIN 51626-2 or E5
for unleaded petrol with octane number 95 and 98.
2)
In Germany also DIN 51628, in Austria ÖNORM C 1590, in Russia GOST R 52368-2005 / EN 590:2004.
3)
In Germany according to the DIN 52638 standard, in Austria ÖNORM C 1590, in France EN 590.
125Inspecting and replenishing
