144Driving and operatingFuel
Fuel for petrol engines Only use unleaded fuel that complies
with European standard EN 228 or E DIN 51626-1 or equivalent.
Your engine is capable of running
with E10 fuel that fulfills these
standards. E10 fuel contains up to
10 % bioethanol.
Use fuel with the recommended
octane rating 3 202. Use of fuel with
too low an octane rating can reduce
engine power and torque and slightly increases fuel consumption.Caution
Do not use fuel or fuel additives
that contain metallic compounds
such as manganese-based
additives. This may cause engine
damage.
Caution
Use of fuel that does not comply to EN 228 or E DIN 51626-1 or
equivalent can lead to deposits or
engine damage and may affect
your warranty.
Caution
Use of fuel with too low an octane
rating could lead to uncontrolled combustion and engine damage.
Note
Use unleaded Premium fuel only for
the following countries:
Armenia, Azerbaijan, Belarus,
Moldova.
Fuel for ethanol adapted
engines (E85) If access to E85 is limited then fuel
with a different proportion of ethanol
or normal RON 95 can be used for
refuelling. The engine's control
management system is adjusted
automatically according to the
amount of ethanol in the fuel.
E85 fuel must fulfil the CWA 15293 or
SS 155480 standard.
When the temperature is about
-10 °C or lower a greater proportion of petrol should be used. E85 in
combination with low temperatures
could lead to the car being more
difficult to start. A slightly higher
proportion of petrol improves the cold start properties considerably.
During the engine's warm-up phase
(below +50 °C) engine torque is
limited when driving with a proportion of ethanol.
Ethanol contains less energy per litre
than petrol, which is why fuel
consumption increases when driving
on E85 compared with petrol. A
consequence of this is that a tank of
E85 covers fewer kilometres than a
tank of petrol.
Driving and operating145Caution
Certain additives in petrol could, in
combination with ethanol, cause
reduced driveability. For this
reason, refuel with a full tank of
petrol every 10000 km. Use up the majority of this before refuelling
the car again.
Fuel for diesel engines
Only use diesel fuel that complies
with EN 590.
In countries outside the European
Union use Euro-Diesel fuel with a
sulphur concentration below 50 ppm.
Caution
Use of fuel that does not comply
with EN 590 or similar can lead to engine power loss, increased
wear or engine damage and loss
of warranty.
Do not use marine diesel oils, heating
oils, Aquazole and similar diesel-
water emulsions. Diesel fuels must
not be diluted with fuels for petrol
engines.
Refuelling9 Danger
Before refuelling, switch off engine
and any external heaters with
combustion chambers. Switch off
any mobile phones.
Follow the operating and safety
instructions of the filling station
when refuelling.
9 Danger
Fuel is flammable and explosive.
No smoking. No naked flames or
sparks.
If you can smell fuel in your
vehicle, have the cause of this
remedied immediately by an
authorized dealer.
Caution
In case of misfuelling, do not
switch on ignition.
Fuel filler flap is located at left rear
side of vehicle.
The fuel filler flap can only be opened
if the vehicle is unlocked 3 21.
Release the fuel filler flap by pushing the flap.
To unlock fuel filler cap: turn it
anticlockwise. If hissing occurs, wait
until it stops before completely
unscrewing the cap.
