th
e sy stem. Clean the brakes af ter driving off-
ro ad. If youth en notice reduced braking ef fect
or hear scraping noises, ha vethe brake sy stem
ch ecked at a qualified specialist workshop.
Ad just your driving style to thech anged braking
ch aracteristics.
* NO
TEDama gecaused bydriving over
obs tacles The
vehicle can be damaged by:
R driving up on high kerbs or unpa ved
ro ads.
R quickly driving over obs tacles su chas
ke rbs, speed bumps or po tholes.
R heavy objects hitting the underbody or
ch assis components. #
Do not drive over obs tacles that could
damage theve hicle. #
Check theve hicle regular lyfor dama ge
during off-road driving. #
Adjust theve hicle speed tosuit the
ro ad sur face conditions. #
Ifth ere is damage, consult a qualified
specialist workshop immediately. +
ENVIRONMENTAL
NOTEEnvironmental
dama gedue tonon-obser vance of pro‐
hibition signs Environmental pr
otection has priority. Treat
nature with respect. #
Be sure toobser veprohibition signs. Checklist before driving off-road
Check
thefo llowing points before driving off-
ro ad:
R Fuel le vel
R Vehicles with a diesel engine: AdBlue ®
le vel
R Engine oil le vel:fill engine oil up tothe maxi‐
mum le velto ensure full gradeability
(→ page 490).
R Tyre-change tool kit and spare wheel
R Tyres and wheels %
Information about special all-ter rain tyres for
re trofitting is available from any qualified
specialist workshop.
Off-road driving
Re ad this section before driving your vehicle off-
ro ad. Practise bydriving over more gentle off-
ro ad terrain firs t.
R If necessa ry, select theF orG drive
prog ram (vehicles with an Off-road pac kage)
before driving off-road (→ page191).
R Before driving off-road, shift the transfer
case totheLOW RANGE off-road gear (vehi‐
cles with an Offroad pac kage ) (→ page 198).
R Select a vehicle le vel suitable for off-road ter‐
ra in (→ page 250). Toavo id damaging the
ve hicle, make sure there is alw ays suf ficient
ground clearance.
R Alw ayske ep the engine running and in gear
when driving on downhill gradients and
slopes. Obse rveth e no tes on driving in
mountainous terrain.
R Activate DSR be fore driving downhill, if nec‐
essary (→ page 232). Driving and parking
18 5
Ac
tivating/deactivating standby mode (park‐
ing up theve hicle)
Re quirements:
R The engine is switched off.
Multimedia sy stem:
, © .
Settings .
Fahrzeug (Vehicle) #
Switch Standby mode on or off.
When you activate the function, a prom pt
appears. #
Select Yes.
St andby mode is activated. Driving and driving saf
ety sy stems Driving sy
stems and your responsibility Yo
ur vehicle is equipped with driving sy stems
which assist you in driving, parking and manoeu‐
vring theve hicle. The driving sy stems are aids
and do not relie ve you of your responsibility per‐
ta ining toroad traf fic la w.Pay attention tothe
traf fic conditions at all times and inter vene
when necessa ry. Be aware of the limitations
re ga rding the safe use of these sy stems. Fu
nction of thera dar senso rs Some driving and driving sa
fety sy stems use
ra dar sensors tomonitor the area in front of,
behind or next totheve hicle (depending on the
ve hicle's equipment).
Depending on theve hicle's equipment, thera dar
sensors are integrated behind the bumpers
and/or behind the Mercedes star. Keep these
parts free of dirt, ice and slush (→ page 499).
The sensors must not be co vered, forex ample
by cycle rack s, ove rhanging loads, sticke rs,fo il
or foils toprotect against stone chipping. In the
eve nt of dama getothe bumpers or radiator
grille, or following a collision impacting the
bumpers or radiator grille, ha vethe function of
th era dar sensors checked at a qualified special‐
ist workshop. The driver assis tance sy stem may
no longer workproper ly. Overview of driving sy
stems and driving
saf ety sy stems In
this section, you will find information about
th efo llowing driving sy stems and driving saf ety
sy stems:
R 360° Camera (→ page271)
R ABS ( Anti-lock BrakingSystem)
(→ page 215)
R Active Dis tance Assi stDISTRONIC
(→ page 233)
R Adaptive brake lights (→ page 227)
R ACTIVE BODY CONTROL
R AIRMATIC (→ page247)
R Active Brake Assi st (→page 221)
R Active Lane Keeping Assist (→ page 289)
R ATTENTION ASSIST (→ page 281)
R BAS (Bra keAssist System) (→ page215)
R Hill Start Assist
R DYNA MIC BODY CONTROL (→ page247)
R EBD ( Electronic Brakefo rc eDistribution)
(→ page 221) 214
Driving and pa rking
Ve
hicles with Traf fic Sign Assis t:de tected
instructions and traf fic signs (→ page 284).
Fo r an overview of thewa rning and indicator
lamps, see (→ page616). Ad
justing the in strument lighting #
Turn brightness control 1up or down.
The lighting of the instrument display and in
th e control elements of theve hicle interior is
adjus ted. Menus and submenus
Fu
nctions on the service menu of the on-
board compu ter On-board computer:
, Service #
Toselect the function: swipe upwards or
down wards on the left-hand Touch Control. #
Press the left-hand Touch Control.
Fu nctions on theService menu:
R Message memory (→ page 566)
R AdBlue :Ad blue ®
ra nge and fill le vel
R Tyres:
- Restart the tyre pressure loss warning
sy stem (→ page 534) -
Check the tyre pressure with the tyre
pressure monitoring sy stem
(→ page 528)
- Restart the tyre pressure monitoring sys‐
te m (→ page 529)
R ASSYST PLUS : calls upthe service due date
(→ page 487)
R Coolant : coolant temp erature display
R Engine oil level: engine oil le vel
R Consumption info: fuel life cycle consump‐
tion Calling up
the assistant display On-board computer:
, Assistance
The following displa ysare available on the assis‐
ta nt displ aymenu:
R Assis tant displ ay
R Attention le vel (→ page 281)
R Full-sur face menu displ ay Instrument Display and on-board computer
305
fi
ed based on the actual operating conditions
and/or loads.
Examples of arduous operating conditions:
R regular city driving with frequent intermedi‐
ate stops
R mainly short-dis tance driving
R frequent operation in mountainous terrain or
on poor road sur faces
R when the engine is of ten le ftidling for long
periods
R operation in particula rly dusty conditions
and/or if air-recirculation mode is frequently
used
In these or similar operating conditions, ha vethe
interior air filter, engine air cleaner, engine oil
and oil filter etc. changed more frequent ly. The
ty re s must be checked more frequently if the
ve hicle is operated under increased loads. Fur‐
th er information can be obtained at a qualified
specialist workshop. Battery disconnection periods
The ASS
YST PLUS se rvice inter val display
can only calculate the service due da tewhen
th e bat tery is connected. #
Notedown the service due date displa yed on
th e instrument display before disconnecting
th e battery (→ page 487). Engine compartment
Opening/closing
the bonnet &
WARNING Risk of accident due todriv‐
ing with the engine bonn etunlo cked
An unloc ked engine bonn etmay open up
when theve hicle is in motion and block your
vie w. #
Never unlock the engine bonn etwhen
driving. #
Before every trip, ensure that the
engine bonn etis loc ked. &
WARNING Risk of accident and inju ry
when opening and closing the engine
bonn et
When opening or closing the engine bonn et,
it may suddenly drop into the end position.
There is a risk of injury for an yone in the
engine bonn et's range of mo vement. #
Only open or close the engine bonn et
when there are no persons in the
engine bonn et's range of mo vement. &
WARNING Danger of bu rns when open‐
ing the bonn et
If yo u open the engine bonn etwhen the
engine has overheated or during a fire inthe
engine compartment, you could come into
contact with hot gases or other escaping
operating fluids. #
Before opening the bonn et, allow the
engine tocool down. 488
Maintenance and care
on an
even su rface forth e engine oil le vel
ch eck. #
Engine oil level OK andthe bar display for
indicating the engine oil le vel on the multi‐
function display is green and is between
"min" and "max": the engine oil le vel is cor‐
re ct. #
Engine oil level Add 1,0 l andthe bar display
fo r indicating the engine oil le vel on the mul‐
tifunction display is orange and is below
"min": top up with 1 litre of engine oil. #
Reduce engine oil level andthe bar display
fo r indicating the engine oil le vel on the mul‐
tifunction display is orange and is abo ve
"max": drain off theexc ess engine oil. Con‐
sult a qualified specialist workshop. #
For engine oil level turn on ignition: switch on
th e ignition tocheck the engine oil le vel. #
Engine oil level System inoperative : sensor
fa ulty or not inser ted. Consult a qualified
specialist workshop. #
Engine oil level System currently unavail. :the
operating conditions for measu ring the
engine oil le vel are not fulfilled.
R close the bonn et
R start the engine
R warm upthe engine
To pping up engine oil &
WARNING Danger of bu rns from hot
component parts in the engine compart‐
ment
Cer tain component parts in the engine com‐
partment may be very hot, e.g. the engine,
th era diator and parts of theex haust sy stem. #
Let the engine cool down and only
to uch the component parts described
below: &
WARNING Risk offire and injury from
engine oil
If engine oil comes into con tact wi thhot
component parts in the engine compart‐
ment, it may ignite. #
Make sure that no engine oil is spilled
next tothefiller opening. #
Allow the engine tocool off and thor‐
oughly clean the engine oil from compo‐
nent parts before starting theve hicle. *
NO
TEEngine dama gecaused byan
incor rect oil filter, incor rect oil or addi‐
tives #
Do not use engine oils or oil filters
which do not cor respond tothe specifi‐
cations explicitly prescribed forthe
service inter vals. #
Do not alter the engine oil or oil filter in
order toachie velonger change inter vals
th an presc ribed. #
Do not use additives. Maintenance and care
491
#
Follow the instructions in the service
inter val display rega rding the oil
ch ange. *
NO
TEDama gecaused bytopping up too
much engine oil To
pping up too much engine oil can cause
damage tothe engine or the catalytic con‐
ve rter. #
Have excess engine oil remo ved at a
qu alified specialist workshop. #
Turn cap 1anti-clockwise and remo veit. #
Top up the engine oil. #
Replace cap 1and turn it clockwise as far
as it will go. #
Check the oil le vel again (→ page 490). Checking
the coolant le vel &
WARNING Danger of bu rns from hot
component parts in the engine compart‐
ment
Cer tain component parts in the engine com‐
partment may be very hot, e.g. the engine,
th era diator and parts of theex haust sy stem. #
Let the engine cool down and only
to uch the component parts described
below: &
WARNING Danger of bu rns from hot
coolant
The engine cooling sy stem is pressurised,
particularly when the engine is warm. If you
open the cap, you could be scalded byhot
coolant spr aying out. #
Let the mo tor cool down before opening
th e cap. #
When opening the cap, wearglove s and
pr otective eyew ear. 492
Maintenance and care
*
NO
TEDama geand malfunctions due to
impurities in AdBlue ® Consequences of impu
rities in AdBlue ®
:
R increased emission values
R damage tothe catalytic con verter
R NOx exhaust gas af tertre atment malfunc‐
tions #
Avoid impurities in AdBlue ®
. Ad
Blue ®
re sidues cr ystallise af ter a period of
time, and contamina tethe sur faces wi thwhich
th ey come into contact. Clean the dirty sur faces
wi th wate r as soon as possible.
When you open theAd Blue ®
tan k,small
amounts of ammonia vapour may escape. Do
not inhale any ammonia vapours that may be
re leased. Only fill th eAd Blue ®
tank in well-venti‐
lated areas. Ad
Blue ®
capacity
To tal capacity of AdBlue ®
tank Mode
lT otal capacity
All models 31.6 litres Ad
Blue ®
consu mption
Like fuel consu mption, AdBlue ®
consu mption is
highly dependent upon driving style and operat‐
ing conditions. Forth is reason, your vehicle's
actual consum ption figures under normal operat‐
ing conditions may dif fer from the consum ption
fi gures calculated. AdBlue ®
consu mption is
between 1% and 5% of fuel consumption. Ha ve
th eAd Blue ®
supply checked at a qualified spe‐
cialist workshop before making journe ysoutside
of Europe. Before a longer stay outside of
Europe, consult a qualified specialist workshop.
Display theAd Blue ®
ra nge and le vel
( → page 305). Engine oil
Note
s on engine oil
Obser vethe no tes on operating fluids
(→ page 552). *
NO
TEEngine dama gecaused byan
incor rect oil filter, incor rect oil or addi‐
tives #
Do not use engine oils or oil filters
which do not cor respond tothe specifi‐
cations explicitly prescribed forthe
service inter vals. 556
Tech nical da ta
Display messages
Possible causes/consequences and M
MSolutions
Engine oil level Reduce oil
level *
NO
TEEngine dama gecaused bydriving with excess engine oil #
Avoid long journe yswith excess engine oil. #
Consult a qualified specialist workshop immediately and ha vethe engine oil siphoned off.
4 Engine oil level Stop vehi-
cle Switch engine off *D
isplay message only for cer tain engines:
The engine oil le vel is too lo w.
* NO
TEEngine dama gecaused bydriving with insuf ficient engine oil #
Avoid long journe yswith insuf ficient engine oil. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances. #
Switch off the engine. #
Add 1 l engine oil. #
Check the engine oil le vel.
To p up engine oil (→ page 491).
No tes on engine oil (→ page 556). Display messages and
warning/indicator lamps 595