not be co
vered and the de tection ranges around
th em must be kept free. Do not at tach additional
licence plate brac kets, advertisements, stic kers,
fo ils or foils toprotect against stone chippings in
th e de tection range of the sensors and cameras.
Make sure that there are no overhanging loads
pr otru ding into the de tection range.
If th ere is damage toa bumper or thera diator
gr ille, or aTer an impact, ha vethe function of the
senso rschecked at a quali/ed specialist work-
shop. Ha vedamage or stone chipping in the area
of the cameras on the front and rear wind ows
re paired at a quali/ed specialist workshop. Ov
Ov
er
ervie
vie w of dr
w of dr iving syst
iving syst ems and dr
ems and dr iving safe
iving safety
ty
syst
syst ems
ems R
ABS (A Anti-lock B Braking S System) (/ page 215)
R BAS (BBra ke AAssist S System) (/ page 215)
R ESP ®
(EElectronic S Stability P Program)
(/ page 215)
R ESP ®
Crosswind Assist (/ page 216)
R ESP ®
trailer stabilisation (/ page 217)R
EBD (E Electronic B Brakeforc e DDistribution)
(/ page 218)
R STEER CONTROL (/ page 218)
R HOLD function (/ page 218)
R Hill Start Assist (/ page 219)
R Adaptive Brake Lights (/ page 220)
R ATTENTION ASSIST (/ page 220)
R Cruise cont rol (/ page 221)
R Limiter (/ page 222)
R Tra1c Sign Assist (/ page 238)
R DYNAMIC BODY CONTROL (/ page 244)
R AIR BODY CONTROL (/ page 245)
R Trailer Manoeuv ring Assist (/ page 264)
Dr
Dr iving Assist
iving Assist ance pack
ance package
age
The following functions are part of the Driving
Assistance Package. Cer tain functions are only
av ailable in some countries. Some functions are
also available without the Driving Assistance
Pa ckage, albeit with restric ted functionality.
R Active Distance Assist DISTRONIC
(/ page 224) R
Active Speed Limit Assist (countr y-dependent)
(/ page 228)
R Route-based speed adap tation (countr y-
dependent) (/ page 229)
R Active Brake Assist (/ page 233)
R Active Steering Assist (countr y-dependent)
(/ page 231)
R Active Emer gency Stop Assist (countr y-
dependent) (/ page 233)
R Blind Spot Assist and Active Blind Spot Assist
with exitwa rning (/ page 240)
R Active Lane Keeping Assist (/ page 242)
P
P ar
ar king P
king P ack
ackage
age
R Reversing camera (/ page 248)
R 360° Camera (/ page 251)
R Parking Assist PARKTRONIC (/ page 255)
R Active Parking Assist (/ page 259)214
214
Driving and parking
R
Frequent operation in mountainous terrain or
on poor road sur faces
R When the engine is oTen leT idling for long
periods
R Operation in particular lydusty conditions
and/or if air-recirculation mode is frequently
used
In these or similar operating conditions, ha vethe
interior air /lter, air /lter, engine oil and oil /lter,
fo rex ample, changed more frequentl y.Check the
tyres more frequently if theve hicle is operated
under increased st ress. Further information can
be obtained at a quali/ed specialist workshop. Batt Batt
er
ery disconnection per
y disconnection per iods
iodsThe AS
SYST PLUS service inter val display can cal-
culate the service due date only when the battery
is connected. #
Display and no tedown the service due date
on the inst rument display before disconnect-
ing the battery (/ page 328). Engine com
Engine com
par
partment
tment A
A
ctiv
ctiv e bonne
e bonne t (pedes
t (pedestr trian pr ot
ian pr otection)
ection) Oper
Oper
ation of t
ation of t he activ
he active bonne
e bonne t (pedes
t (pedestr trian pr ot
ian pr otec-
ec-
tion)
tion)
In cer tain accident situations, the actuation of the
active bonnet reduces therisk of injury topedes-
trians. The rear area of the bonnet is raised by
appr oximately 80 mm.
ATer being triggered, the active bonnet remains in
th era ised position. Limited visibility due tothe
ra ised bonnet cannot be ruled out.
ATer the active bonnet has been actuated, pedes-
trian pr otection may be limited.
Ha ve the full functionality of the active bonnet
re stored immediatel y in aquali/ed specialist
wo rkshop.
If necessar y,adjust your seat position and drive
carefully toaqu ali/ed specialist workshop. If a
safe continued jou rney is not possible, contact a
qu ali/ed specialist workshop. Opening and closing t Opening and closing t
he bonnet
he bonn et &
W
WARNI NG
ARNI NGRisk of accident due todriving
with the bonnet unloc ked
The bonnet may open and blo ckyour vie w. #
Neverre lease the bonnet when driving. #
Before every trip, ensure that the engine
bonnet is loc ked. &
W
WARNING
ARNING Risk of accident and inju ry
when opening and closing the bonnet
The bonnet may suddenly drop into the end
position.
There is a risk of injury for an yone in the
engine bonnet's range of mo vement. #
Do not open or close the bonnet if there
is a person in the bonnet's range of
mo vement. Maintenance and care
329 329
Opening t
Opening t
he bonnet
he bonnet #
Torelease the bonnet, pull on handle 1. #
Push handle 1ofthe bonnet catch upwards
and liT the bonnet until it opens automaticall y.
Closing t
Closing t he bonnet
he bonnet #
Lowe rth e bonnet toa height of around 20 cm
and then allow it tofall, applying a little force
as you let it go. #
Ifth e bonnet can still be liTed slightl y,open
th e bonnet again and close it with a little more
fo rc e until it engages cor rectl y. Engine oil
Engine oil
Chec
Chec
king t
king t he engine oil lev
he engine oil lev el using t
el using the oil dips
he oil dips tick
tick &
W
WARNING
ARNING Risk of burns from hot compo-
nent parts in the engine compartment
Cer tain component parts in the engine com-
partment can be very hot, e.g. the engine, the
cooler and parts of theex haust system. #
Allow the engine tocool down and only
to uch component parts described in the
fo llowing. R
R
eq
eq uir
uir ements:
ements:
R The engine has an oil dipstic k.If not, the
engine oil le vel can be checked only with the
on-board computer (/ page 332) .
Depending on the engine, the oil dipstick may be
installed in the engine compartment in di.erent
locations. Maintenance and care
331
331
The
waiting time before checking the oil le vel
when the engine is at normal operating temp era-
ture is /ve minutes. #
Park theve hicle on a le vel sur face. #
Pull oil dipstick 1out and wipe o.. #
Slowly slide oil dipstick 1into the guide tube
to the stop, and pull it out again aTer appr ox-
imately thre e seconds.
R Oil le vel is cor rect: oil le vel is between 2
and 3.
R Oil le velto o lo w:oil le vel is at 3or belo w.
R Oil le velto o high: oil le vel is abo ve2 . #
Ifth e oil le vel is too lo w,top up with 1 litre of
engine oil. #
Ifth e oil le vel is too high, drain o. excess
engine oil. Consult a quali/ed specialist work-
shop.
Chec Chec king t king t he engine oil lev
he engine oil lev el using t
el using the on-board
he on-board
com
com put
puter
er
R
R eq
eq uir
uir ements:
ements:
R The engine has been warmed up.
R The vehicle is par ked on a le vel sur face.
R The engine is running at idle speed.
R The bonnet is closed.
The engine oil le vel is de term ined during driving.
De term ining the engine oil le vel can take up to 30 minutes with a normal driving style and
even
longer with an active driving style.
On-board computer:
4 Service 5
Engine oil level
One of thefo llowing message s will appear onthe
inst rument displa y:
R Engine oil level Measuring now: measu rement
of the oil le vel is not yet possible. #
Repeat there qu est aTer a maximum of
30 minutes' driving.
R Engine oil level OK andthe bar display for
indicating the oil le vel on the inst rument dis-
play is green and is between "min" and "max":
th e oil le vel is cor rect.
R Engine oil level Add 1.0 l andthe bar display
fo r indicating the oil le vel on the inst rument
display is orange and is below "min": #
Add 1 l of engine oil.
R Reduce engine oil level andthe bar display for
indicating the oil le vel on the inst rument dis-
play is orange and is abo ve"max": 332 332
Main
tenance and ca re
#
Drain o. any excess engine oil that has been
added. Todo so, consult a quali/ed specialist
wo rkshop.
R For engine oil level turn on ignition #
Switch on theve hicle tocheck the engine oil
le ve l.
R Engine oil level System inoperative: The oil
le ve l sensor is defective or not connected. #
Consult a quali/ed specialist workshop.
R Engine oil level System currently unavail. #
Close the bonnet.
T
T op up engine oil
op up engine oil &
W
W ARNING
ARNING Risk of burns from hot compo-
nent parts in the engine compartment
Cer tain component parts in the engine com-
partment can be very hot, e.g. the engine, the
cooler and parts of theex haust system. #
Allow the engine tocool down and only
to uch component parts described in the
fo llowing. &
W
WARNING
ARNING Risk of /re and injury from
engine oil
If engine oil comes into contact with hot com-
ponent parts in the engine compartment, it
may ignite. #
Make sure that no engine oil is spilled
next tothe /ller opening. #
Allow the engine tocool o. and thor-
oughly clean the engine oil from compo-
nent parts before starting theve hicle. *
N
NOOTE
TE Engine damage caused byan inco r-
re ct oil /lter, incor rect oil or additi ves #
Do not use engine oils or oil /lters which
do not cor respond tothe speci/cations
ex plicitly prescribed forth e service inter-
va ls. #
Follow the inst ructions on the service
inter val display forch anging the engine
oil and obser vethe prescribed change
inter vals. #
Do not use additives. *
N NOOTE
TE Damage caused bytopping up too
much engine oil To
o much engine oil can damage the engine or
th e catalytic con verter. #
Have excess engine oil remo ved at a
qu ali/ed specialist workshop. %
Depending on driving st yle, theve hicle con-
sumes up to0.8 litre of oil per 1000 km. The
oil consum ption may be higher than this when
th eve hicle is new or if you frequently drive at
high engine speeds. Maintenance and care
333
333
#
Turn cap 1anti-clockwise and remo veit. #
Top up the engine oil. #
Replace cap 1and turn it clockwise until it
engages. #
Check the oil le vel again (/ page 331). Chec
Chec
king t
king t he coolant lev
he coolant lev el
el &
W
WARNING
ARNING Risk of burns from hot compo-
nent parts in the engine compartment
Cer tain component parts in the engine com-
partment can be very hot, e.g. the engine, the
cooler and parts of theex haust system. #
Allow the engine tocool down and only
to uch component parts described in the
fo llowing. &
W
WARNING
ARNING Risk of scalding from hot cool-
ant
If yo u open the cap, you could be scalded. #
Let the mo tor cool down before opening
th e cap. #
When opening the cap, wear pr otective
glo ves and saf ety glasses. #
Open the cap slo wlytorelease pressure. #
Park theve hicle on a le vel sur face. #
Check the coolant temp erature display on the
inst rument displa y.
The coolant temp erature must be below 70°C. #
Slowly turn cap 1anti-clockwise torelease
ove rpressure. #
Continue turning cap 1anti-clockwise and
re mo veit. 334
334
Maintenance and care
#
Avoid impurities in AdBlue ®
. Ad
Blue ®
residues cr ystallise aTer a period of
time, and contaminate the sur faces with which
th ey come into contact. Clean the dirty sur faces
with water as soon as possible.
When you open theAd Blue ®
tank, small amounts
of ammonia vapour may escape. Do not inhale
any ammonia vapours that may be released. Only
/ll theAd Blue ®
tank in well-ventilated areas.
A
A dBlue
dBlue ®
®
/lling
/lling capacity and consump
capacity and consump tion
tion
Tot
Tot al capacity of A
al capacity of A dBlue
dBlue®
®
t
tank
ank Model
Tot
Mode lT otal capacity
al capacity
All model s2 7.5 litresA
A
dBlue
dBlue ®
®
consump
consump tion
tion
The average AdBlue ®
consu mption is between 1%
and 5% of fuel consum ption. Like fuel consump-
tion, AdBlue ®
consu mption is high lydependent
upon driving style and operating conditions. For
th is reason, your vehicle's actual consu mption /g-
ures in da y-to -day operating conditions may di.er from
the consum ption /gures calculate d. The fre-
qu ency at which you will ha veto to p up AdBlue ®
will also vary. Ha vetheAd Blue ®
supply checked
at a quali/ed specialist workshop before making
jou rney s outside Europe. Before a lon ger st ayout-
side Europe, consult a quali/ed specialist work-
shop.
A
A dBlue dBlue ®
®
r
rang
ang e and
e and /ll
/lllev
level
el
The AdBlue ®
/ll le vel and range can be displa yed
via the on-board computer. The AdBlue ®
range
sh ow n is high lydependent upon driving style and
operating conditions. The actual range therefore
may deviate from thera nge cur rently displa yed on
th e on-board computer. The information supplied
in the Owner's Manual rega rding there ser ve
qu antity at the /rst display warning and the mini-
mum top-up quantity with an em pty fuel tank is
also tobe understood as guide values. Engine oil
Engine oil
N
No
ot
tes on engine oil
es on engine oil
Obser vethe no tes on operating 0uids
(/ page 387). *
N
NOOTE
TE Engine damage caused byan inco r-
re ct oil /lter, incor rect oil or additi ves #
Do not use engine oils or oil /lters other
th an those which meet the speci/cations
necessary forth e prescribed service
inter vals. #
Do not alter the engine oil or oil /lter in
order toachie velonger change inter vals
th an prescribed. #
Do not use additives. #
Have the engine oil changed aTer the
prescribed inter vals. 392
392
Te
ch nical data
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
¯
AdBlue system fault Engine
start not possible *
The AdBlue ®
system is malfunctioning. You can no longer start theve hicle. #
Consult a quali/ed specialist workshop immediatel y.Engine oil Engine oil
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
5
Check engine oil level
when next refuelling *T
he engine oil le vel has dropped tothe minimum le vel.
* N
NO OTE TE Engine damage caused bydriving with insu1cient engine oil #
Avoid long journe yswith insu1cient engine oil. #
Check the engine oil le vel when next refuelling.
To p up the engine oil (/ page 333).
No tes on engine oil (/ page 392).468
468
Displ
aymessages and warning/indicator lamps