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Driving and operating131AdBlue
General information
The selective catalytic reduction
(BlueInjection) is a method to
substantially reduce the nitrogen
oxides in the exhaust emission. This
is achieved by injecting a Diesel
Exhaust Fluid (DEF) into the exhaust
system.
The designation of this fluid is AdBlue Ⓡ. It is a non-toxic, non-flammable,
colourless and odourless fluid which
consists of 32% urea and 68% water.
Note
AdBlue Ⓡ is a registered trademark
of the Verband der
Automobilindustrie e.V. (VDA).9 Warning
Avoid contact of your eyes or skin
with AdBlue.
In case of eye or skin contact,
rinse off with water.
Caution
Avoid contact of the paintwork with AdBlue.
In case of contact, rinse off with water.
AdBlue freezes at a temperature of
approx. -11 °C. As the vehicle is
equipped with an AdBlue pre-heater,
the emissions reduction at low
temperatures is ensured. The AdBlue
pre-heater works automatically.
The typical AdBlue consumption is
approx. two litres per 1000 km, but
can also be higher depending on
driving behaviour (e.g. high load or
towing).
Level warnings
If the AdBlue level falls below a
certain value, a level warning (e.g.
"AdBlue Range: 2400 km") will be
shown in the Driver Information
Centre 3 91, located in the centre of
the instrument cluster.
Refill the tank with a volume of at least
10 litres of AdBlue as soon as
possible. Refer to " Refilling AdBlue"
below.
Driving is possible without any
restrictions.
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150Driving and operatingCaution
Performance of the system can bereduced when sensors are
covered, e.g. by ice or snow.
Performance of the parking assist
system can be reduced due to
heavy loading.
Special conditions apply if there
are taller vehicles in the vicinity
(e.g. off-road vehicles, mini vans,
vans). Object identification and correct distance indication in the
upper part of these vehicles
cannot be guaranteed.
Objects with a very small reflection
cross-section, e.g. objects of
narrow size or soft materials, may
not be detected by the system.
Parking assist systems do not
detect objects outside the
detection range.
Fuel
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.
Page 177 of 225
Vehicle care175FuseCircuitABSAnti-lock Brake
SystemA/CClimate control,
air conditioning
systemAUX PUMPAuxiliary pumpBATT1Instrument panel
fuse boxBATT2Instrument panel
fuse boxBATT3Instrument panel
fuse boxBCMBody Control
ModuleDEF HTRDiesel Exhaust
Fluid HeaterECM1Engine Control
ModuleECM2Engine Control
ModuleFuseCircuitECM PWR TRNEngine Control
Module, Power‐
trainENG SNSREngine sensorsEPBElectrical
parking brakeFRT FOGFront fog lightsFRT WPRFront wiperFUEL/VACFuel pump,
vacuum pumpHDLP WASHERHeadlight
washerHI BEAM LTHigh beam (left-
hand)HI BEAM RTHigh beam
(right-hand)HORNHornHTD WASH/MIRHeated washer
fluid, heated
exterior mirrorsIGN COIL BIgnition coilFuseCircuitLO BEAM LTLow beam (left-
hand)LO BEAM RTLow beam (right-
hand)NOX SNSRNOX SensorPRK LP LTParking light
(left-hand)PRK LP RT/LIFT
GATEParking light
(right-hand), tail‐
gatePWM FANPulse width
modulation fanREAR DEFOGHeated rear
windowREAR WPRRear wiperSPARE–STOP LAMPBrake lightsSTRTRStarter