
AdBlue
®
(BlueTEC vehicles only)
General notes To function properly, BlueTEC exhaust gas after-
treatment must be operated with the reducing
agent AdBlue ®
. Topping up AdBlue ®
is part of
the maintenance work. Under normal operating
conditions, a full tank of AdBlue ®
should last
until the next service due date.
When the supply of AdBlue ®
is down to approx-
imately 3.8 l, the Refill AdBlue See Own‐
Refill AdBlue See Own‐
er's Manual er's Manual message is shown in the multi-
function display.
X Add at least 3.8 l of AdBlue ®
.
X Switch on the ignition for at least 60 seconds.
X Start the engine.
i You can also have the AdBlue ®
tank refilled
at a qualified specialist workshop.
Before driving your vehicle outside Europe, have
the AdBlue ®
supply checked at a qualified spe-
cialist workshop.
Further information about BlueTEC exhaust gas
aftertreatment and about AdBlue ®
can
be obtained from any Mercedes-Benz Service
Centre.
Important safety notes AdBlue
®
is a water-soluble fluid for the exhaust
gas aftertreatment of diesel engines. It is:
R non-toxic
R colourless and odourless
R non-flammable
If you open the AdBlue ®
tank, small amounts of
ammonia vapour may be released.
Ammonia vapours have a pungent odour and are
particularly irritating to the skin, to mucous
membranes and to the eyes. You may experi-
ence a burning sensation in your eyes, nose and throat. You may also experience coughing and
watery eyes.
Do not inhale any ammonia vapours that may be
released. Only fill the AdBlue ®
tank in well-ven-
tilated areas.
Do not swallow AdBlue ®
or let it come into con-
tact with skin, eyes or clothing. Keep AdBlue ®
away from children. If you or others come into contact with AdBlue
®
,
observe the following:
R immediately rinse AdBlue ®
off your skin with
soap and water.
R if AdBlue ®
comes into contact with your eyes,
immediately rinse them thoroughly with clean water. Seek medical attention immediately.
R if AdBlue ®
is swallowed, immediately rinse
your mouth out thoroughly. Drink plenty of
water. Seek medical attention immediately.
R change immediately out of clothing that has
come into contact with AdBlue ®
.
! Only use AdBlue ®
in accordance with
ISO 22241. Do not mix any additives with
AdBlue ®
, and do not dilute AdBlue ®
with
water. This may destroy the BlueTEC exhaust
gas aftertreatment system.
! In order to fill the AdBlue ®
tank, the vehicle
must be parked on a level surface. The
AdBlue ®
tank can only be filled as intended
with the vehicle parked on a level surface.
Fluctuations in capacity will thus be avoided.
Filling a vehicle standing on an uneven sur-
face is not permitted. There is a danger of
overfilling, which can cause damage to Blue-
TEC exhaust gas aftertreatment components.
! Surfaces which have come into contact with
AdBlue ®
while refilling should be rinsed
immediately with water, or remove AdBlue ®
with a moist cloth and cold water. If AdBlue ®
has already crystallised, use a sponge and
cold water to clean the area. AdBlue ®
residue
crystallises after a certain amount of time and soils the affected surfaces.
! AdBlue ®
is not a fuel additive and must not
be added to the fuel tank. If AdBlue ®
is added
to the fuel tank, this can lead to engine dam-
age.
Have the AdBlue ®
tank refilled at a qualified
specialist workshop. However, you can also top
up the AdBlue ®
tank:
R at a filling station with an AdBlue ®
filling pump
R with AdBlue ®
refill bottles
R with an AdBlue ®
refill canister
When the pump nozzle switches off automati-
cally during filling at a filling pump, the AdBlue ®
tank has been completely filled. Do not fill the 180
RefuellingDriving and pa
rking

AdBlue
®
tank any further. AdBlue ®
may leak
out.
To avoid transporting already opened refill con-
tainers in the vehicle, completely empty refill
bottles or canisters when filling the AdBlue ®
tank, if possible.
Further information on AdBlue ®
(Y page 439).
Opening the AdBlue ®
filler cap The fuel filler flap is unlocked or locked auto-
matically when you open or close the vehicle
with the key or using KEYLESS-GO.
X Switch the ignition off.
X Press the fuel filler flap in the direction of
arrow :.
The fuel filler flap swings up.
X Turn blue AdBlue ®
fuel filler cap ;anti-clock-
wise and remove it.
AdBlue ®
filler cap ;is secured with a plastic
strip.
AdBlue ®
refill canisters !
Do not tighten the disposable hose with too
much force. The disposable hose may other-
wise be destroyed. X
Unscrew the cap from the opening on top of
AdBlue ®
refill canister ;.
X Place disposable hose :on the opening of
AdBlue ®
refill canister ;and screw it on
clockwise until hand-tight.
i Disposable hose
:remains closed until
you fasten disposable hose :to the AdBlue ®
filler neck of the vehicle.
X Place disposable hose :on the filler neck on
the vehicle and screw it on clockwise until
hand-tight. When you feel resistance, dispos-
able hose :is sufficiently secured.
X Lift up and tip AdBlue ®
refill canister ;.
i Filling stops when the AdBlue ®
tank is com-
pletely filled. Do not fill the AdBlue ®
tank any
further. AdBlue ®
refill canister ;can be
removed when it has been only partially emp-
tied.
X Turn disposable hose :on the filler neck of
the vehicle anti-clockwise and remove it.
X Turn disposable hose :on the opening of
AdBlue ®
refill canister ;anti-clockwise and
remove it.
X Reseal AdBlue ®
refill canister ;with the cap.
AdBlue ®
refill canisters are available at many
filling stations or at a Mercedes-Benz Service Refuelling
181Driving and parking Z

Centre. AdBlue
®
refill canisters are often sold
with a filler hose. A filler hose that does not
exactly fit the vehicle's AdBlue ®
tank offers no
protection against overfilling. AdBlue ®
may leak
out as a result of overfilling. Mercedes-Benz
offers a special disposable hose with overfill
protection. You can obtain this from any
Mercedes-Benz Service Centre. AdBlue ®
is
available in a variety of containers and recepta- cles. Only use the disposable hose with the
Mercedes-Benz AdBlue ®
refill canisters.
AdBlue ®
refill bottle !
Screw on the AdBlue ®
refill bottle only hand-
tight. It may otherwise be destroyed. X
Unscrew the protective cap from AdBlue ®
refill bottle :.
X Place AdBlue ®
refill bottle :on the filler
neck as shown and screw it on clockwise until hand-tight.
X Press AdBlue ®
refill bottle :towards the
filler neck.
The AdBlue ®
tank is filled. This could last up to
one minute.
i When AdBlue ®
refill bottle :is no longer
pressed, filling stops and the bottle may be
taken off again after being only partially emp- tied.
X Release AdBlue ®
refill bottle :.
X Turn AdBlue ®
refill bottle :anti-clockwise
and remove it.
X Screw the protective cap onto AdBlue ®
refill
bottle :again.
AdBlue ®
refill bottles are available at many fill-
ing stations or at a Mercedes-Benz Service
Centre. Refill bottles without a threaded seal
offer no protection against overfilling. AdBlue ®
may leak out as a result of overfilling. Mercedes- Benz offers special refill bottles with a threaded
cap. These are available at any Mercedes-Benz
Service Centre.
Closing the AdBlue ®
filler cap X
Fit AdBlue ®
filler cap ;on the filler neck and
turn it clockwise.
X To close the fuel filler flap, press it in the
direction of arrow :.
X Drive faster than 15 km/h.
The Refill AdBlue See Owner's Manual Refill AdBlue See Owner's Manual
message goes out after approximately one
minute.
i If the
Refill AdBlue See Owner's Man‐ Refill AdBlue See Owner's Man‐
ual
ual message continues to be shown in the
multifunction display, you must top up with
more AdBlue ®
. Charging the high-voltage battery
Important safety notes
G
DANGER
The vehicle's high voltage electrical system is under high voltage. If you modify components
in the vehicle's high-voltage electrical system or touch damaged components, you may be
electrocuted. The components in the vehi-
cle's high-voltage electrical system may be
damaged in an accident, although the damage
is not visible. There is a risk of fatal injury.
Do not touch any high-voltage components
after an accident and never modify the vehi-
cle's high-voltage electrical system. Have the vehicle towed away after an accident and the 182
Charging the high-voltage batteryDriving and parking

Emergency braking
The vehicle can also be braked during an emer-
gency by using the electric parking brake.
X While driving, push handle :of the electric
parking brake.
The vehicle is braked for as long as the handle of the electric parking brake is pressed. The
longer the electric parking brake handle is
depressed, the greater the braking force.
During braking:
R a warning tone sounds
R the Release
Release park. park.brake
brakemessage appears
R the red !indicator lamp in the instrument
cluster flashes
When the vehicle has been braked to a stand-
still, the electric parking brake is applied. Parking up the vehicle
If you leave the vehicle parked up for longer than
four weeks, the battery may be damaged by
exhaustive discharging.
If you leave the vehicle parked up for longer than
six weeks, it may suffer from lack of use.
X Contact a qualified specialist workshop and
seek advice.
i You can obtain information about trickle
chargers from a qualified specialist work-
shop.
PLUG-IN HYBRID vehicles: observe the impor-
tant safety notes for the high-voltage battery
(Y page 394). Driving tips
General notes
Important safety notes G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk of an accident.
Do not switch off the ignition while driving.
Drive sensibly – save fuel Observe the following tips to save fuel:
X The tyres should always be inflated to the rec-
ommended tyre pressure.
X Remove unnecessary loads.
X Remove roof carriers when they are not nee-
ded.
X Warm up the engine at low engine speeds.
X Avoid frequent acceleration or braking.
X Have all maintenance work carried out as
indicated by the service intervals in the Ser-
vice Booklet or by the service interval display.
Fuel consumption also increases when driving in
cold weather, in stop-start traffic, on short jour- neys and in hilly terrain. ECO display
The ECO display shows you how economical
your driving style is. The ECO display assists you in achieving the most economical driving style
for the selected settings and prevailing condi-
tions. Consumption can be significantly influ-
enced by your driving style. 194
Driving tipsDriving and parking

:
Acceleration
; Coasting
= Constant
? Additional range achieved
Range ?is shown under Bonus
Bonusfr.
fr.start
start and
represents the additional range achieved since
the beginning of the journey as a result of an
adapted driving style.
If the fuel level has dropped into the reserve
range, the Reserve fuel Reserve fuel message is shown in
the multifunction display instead of range ?. In
addition, the 8warning lamp in the instru-
ment cluster lights up (Y page 347).The ECO display consists of three sections, with
an inner and outer area. The sections corre-
spond to the following three categories: :
Acceleration
(evaluation of all accel-
eration processes):
R the outer area fills up and the inner
area lights up green: moderate
acceleration, especially at higher
speeds
R the outer area empties and the
inner area is grey: sporty acceler-
ation ;
Coasting
(evaluation of all decelera-
tion processes):
R the outer area fills up and the inner
area lights up green: anticipatory
driving, keeping your distance and
early release of the accelerator.
The vehicle can coast without use
of the brakes.
R the outer area empties and the
inner area is grey: frequent heavy
braking =
Constant
(continuous evaluation
over the entire journey):
R the outer area fills up and the inner
area lights up green: constant
speed and avoidance of unneces-
sary acceleration and deceleration
R the outer area empties and the
inner area is grey: fluctuations in
speed The three inner areas display the current driving
style and light up green as a result of a particu-
larly economical driving style. Depending on the driving situation, up to two areas may light up
simultaneously.
At the beginning of the journey, the three outer
areas are empty and fill up as a result of eco-
nomical driving. A higher level indicates a more
economical driving style. If the three outer areas
are completely filled at the same time, the driver
has adopted the most economical driving style
for the selected settings and prevailing condi-
tions. The ECO display border lights up.
The ECO display does not indicate the actual fuel consumption. The additionally achieved range
displayed under Bonus fr. start
Bonus fr. start does not
indicate a fixed consumption reduction. Driving tips
195Driving and parking Z

reduce the risk of an accident to yourself and
other road users.
X If the Off-road orOff-road Plus drive pro-
gram is selected: select the Individual,
Sport, Comfort orSlippery drive program
(Y page 166).
X Deactivate the LOW RANGE offroad gear
(Y page 255).
X Deactivate DSR (Y page 252).
X Lower the vehicle level again to a level suita-
ble to the road conditions, e.g. to the normal
level.
X Clean the headlamps and rear lights and
check for damage.
X Clean the front and rear licence plates.
X Clean the wheels and tyres with a water jet
and remove any foreign objects.
X Clean the wheels, wheel arches and the vehi-
cle underside with a water jet; check for any
foreign objects and damage.
X Check whether twigs or other parts of plants
have become trapped. These increase the risk
of fire and can damage fuel pipes, brake
hoses or the rubber bellows of the axle joints
and propeller shafts.
X After the trip, examine without fail the entire
undercarriage, wheels, tyres, brakes, body-
work structure, steering, chassis and exhaust system for damage.
X After driving for extended periods across
sand, mud, gravel, water or in similarly dirty
conditions, have the brake discs, wheels,
brake pads/linings and axle joints checked
and cleaned.
X If you detect strong vibrations after driving
off-road, check for foreign objects in the
wheels and drive train and remove them if
necessary. Foreign objects can disturb the
balance and cause vibrations.
Driving on sand Observe the following rules when driving on
sand:
R Select the Offroaddrive program (vehicles
with Off-Road Engineering package)
(Y page 254).
R Select the Offroaddrive program (vehicles
without Off-Road Engineering package)
(Y page 254).
R Select a higher vehicle level. R
Avoid high engine speeds.
R Use the left-hand steering wheel gearshift
paddle to shift to a lower gear appropriate to the terrain.
R Drive quickly to overcome the rolling resist-
ance. Otherwise, the vehicle could dig itself
into the sand.
R Drive in the tracks of other vehicles if possi-
ble. Make sure that:
- the tyre ruts are not too deep
- the sand is firm enough
- your vehicle has sufficient ground clear-
ance
Tyre ruts and gravel roads !
Check that the ruts are not too deep and
that your vehicle has sufficient clearance.
Otherwise, your vehicle could be damaged or bottom out and get stuck.
Observe the following rules when driving along
ruts in off-road terrain or on roads with loose
gravel: R Select the Offroaddrive program (vehicles
with Off-Road Engineering package)
(Y page 254).
R Select the Offroaddrive program (vehicles
without Off-Road Engineering package)
(Y page 254).
R Select a higher vehicle level.
R Avoid high engine speeds.
R Shift to a lower gear using the left-hand steer-
ing wheel gearshift paddle.
R Drive slowly.
R Where ruts are too deep, drive with the
wheels on one side on the middle section of
turf if possible.
Driving over obstacles !
Obstacles could damage the floor of the
vehicle or components of the chassis. Ask
passengers for guidance when driving over
large obstacles. Any damage to the vehicle
always increases the risk of an accident. Driving tips
201Driving and parking Z

Activating Steering Assist and Stop&Go
Pilot
X Activate the DISTRONIC PLUS with Steering
Assist and Stop&Go Pilot function using the
on-board computer (Y page 290).
The DTR+: steering assistant On
DTR+: steering assistant On mes-
sage appears in the multifunction display.
Steering Assist and Stop&Go Pilot are active.
Information in the multifunction display If Steering Assist and Stop&Go Pilot are activa-
ted but not ready for a steering intervention,
steering wheel symbol :appears in grey. If the
system provides you with support by means of
steering interventions, symbol :is shown in
green.
Deactivating Steering Assist and Stop&Go
Pilot
X Deactivate the DISTRONIC PLUS with Steer-
ing Assist and Stop&Go Pilot function using
the on-board computer (Y page 290).
The DTR+: steering assistant Off
DTR+: steering assistant Off mes-
sage appears in the multifunction display.
Steering Assist and Stop&Go Pilot are deac-
tivated.
When DISTRONIC PLUS is deactivated or not
available, Steering Assist and Stop&Go Pilot are deactivated automatically. Level control (vehicles with the Off-
road Engineering package)
Important safety notes Level control adapts the vehicle level automati-
cally to the current operating and driving situa-
tion. This results in reduced fuel consumption
and improved handling.
Make changes to the vehicle level while the
vehicle is in motion. This enables the vehicle to adjust to the new level as quickly as possible.
The vehicle level may change visibly if you park
the vehicle and the outside temperature changes. If the temperature drops, the vehicle
level lowers; with an increase in temperature,
the vehicle level rises.
If you unlock the vehicle or open a door, the
vehicle begins to compensate for load discrep-
ancies while still parked. However, for signifi-
cant level changes, e.g. after the vehicle has
been stationary for a long period, the engine
must be running. For safety reasons, the vehicle
is only lowered when the doors are closed. Low-
ering is interrupted if a door is opened; it con-
tinues once the door has been closed.
Further information about "Driving off-road"
(Y page 199). G
WARNING
People's limbs may become trapped if they
are located underneath the vehicle or
between the vehicle body and the tyres when the vehicle is lowering. There is a danger of
injury.
When lowering the vehicle, make sure no one
is underneath the vehicle or in the immediate vicinity of the wheel arches. G
WARNING
When driving at a raised vehicle level, the driv- ing characteristics may be significantly affec-ted by the vehicle's raised centre of gravity.
The vehicle may be more liable to tip when
cornering, for example. There is a risk of an
accident.
Always select as low a vehicle level as possi-
ble and adjust your driving style accordingly. G
WARNING
When driving with a lowered or raised chassis frame, the driving and braking characteristics
may be seriously affected. A raised chassis
frame may also exceed the permissible vehi-
cle height. There is a risk of an accident.
Set the driving level before pulling away. G
WARNING
Due to the high centre of gravity, the vehicle
may start to skid and overturn in the event of abrupt steering manoeuvres and/or when the 216
Driving systemsDriving and pa
rking

Normal level
Setting the vehicle to normal level
X Start the engine.
X Press selector wheel :.
Selector wheel :extends.
X To lower the vehicle: turn selector wheel :
anti-clockwise ?.
The vehicle is lowered.
If one or more indicator lamps =are on:
X Turn selector wheel :anti-clockwise ?
until all indicator lamps =that are lit start to
flash.
The vehicle is lowered to normal level. As
soon as the next lowest level is reached, the
indicator lamp stops flashing and goes out.
Offroad levels General notes
Only select an offroad level if this is appropriate for road conditions. Otherwise, fuel consump-
tion may increase and handling performance
may be affected.
You can select the following:
R Offroad level 1 at speeds up to 100 km/h
R Offroad level 2 at speeds up to 65 km/h
R Offroad level 3 at speeds up to 20 km/h
If you select an offroad level when driving at too
high a speed, the Please reduce speed
Please reduce speed mes-
sage appears in the multifunction display.
Offroad level 3 is only suitable for driving on
extremely difficult off-road terrain under partic- ularly rough conditions.
R Adjust your driving style to the altered han-
dling characteristics.
R Do not drive faster than 20 km/h. Indicator lamps
=for the desired offroad level
flash:
R the lower indicator lamp flashes, offroad
level 1 is selected
R the lower and centre indicator lamps flash,
offroad level 2 is selected
R all three indicator lamps flash, offroad level 3
is selected
The vehicle is being adjusted to the offroad level
selected. As soon as an offroad level is reached,
the corresponding indicator lamp stops flashing and lights up constantly.
Raising the vehicle
Setting the vehicle level using the selector
wheel
X To raise the vehicle: turn selector wheel :
clockwise ;.
The vehicle is raised to offroad level 1 by
30 mm compared to the normal level.
During the adjustment, the Vehicle rising Vehicle rising
message, for example, appears in the multifunc-
tion display.
If you press the %ora button on the
multifunction steering wheel, the message will
disappear.
i Up to offroad level 2, you can hide the mes-
sages using the %ora button on the
multifunction steering wheel.
While the adjustment from offroad level 2 to off-
road level 3 is taking place, you will see a mes-
sage such as the following in the multifunction
display: Vehicle rising Max. speed
Vehicle rising Max. speed
20 km/h 20 km/h.
The Max. Max. speed
speed 20
20km/h
km/h message draws your
attention to the maximum speed permitted for
offroad level 3.
If you drive above 20 km/h at offroad level 3,
you will see the following message shown in red 218
Driving systemsDriving an
d parking