If
yo u ha vetodisconnect the 12 V batter y,con-
ta ct a quali/ed specialist workshop.
Comply with saf ety no tes and take protective
measures when handling batteries. Risk of
explosion. Fire
, naked 0ames and smoking are
prohibi ted when handling the batter y.
Av oid creating spar ks. Electrolyte or battery acid is cor
rosive.
Av oid contact with the skin, eyes or
clo thing. Wear suitable pr otective
clo thing, in particular glo ves, an apron
and a face mask. Immediately rinse
electrolyte or acid splashes o. with
clean water. Consult a doctor if neces-
sar y. We
ar saf ety glasses. Ke
ep children away. Obser
vethis Owner's Manual.
Obser vethefo llowing if you do not intend touse
th eve hicle over an extended period of time:
R Activate standby mode.
R Alternativel y:connect the battery toa battery
ch arge r appr ovedby Mercedes-Benz or con-
sult a quali/ed specialist workshop todiscon-
nect the batter y. N N
o
ot
tes on st
es on st ar
arting assist
ting assist ance and c
ance and c har
harging t
ging t he 12
he 12
V batt
V batt ery
ery All v All v
ehicles
ehicles
When charging the battery and during starting
assistance, alw ays use the jump-start connection
point in the engine compartment. *
N
NOOTE
TE Damage tothe battery due toove r-
vo ltage When
charging using a battery charge r without
a maximum charging voltage, the battery or
th e on-board electronics may be damaged. #
Only use battery charge rs with a maxi-
mum charging voltage of 14.8 V. &
W
WARNI NG
ARNI NGRisk of explosion due tothe
ignition of hydrogen gas
If th ere is a short circuit or spar ksare created,
th ere is a danger of hydrogen gas igniting
when youch arge the batter y. #
Make sure that the POSITIVE term inal of
a connected battery does not come into
contact with vehicle parts. #
Never place me tal objects or tools on a
batter y. #
When connecting and disconnecting the
batter y,alw ays obser vethe sequence of
battery term inals described. Breakdown assistance
329 329
#
During starting assistance, alw aysta ke
care toconnect only battery term inals of
identical polarity. #
During starting assistance, obser vethe
sequence described for connecting and
disconnecting the jump leads. #
Do not connect or disconnect the bat-
te ry term inals with the engine running. &
W
WARNI NG
ARNI NGRisk of explosion due toexplo-
sive mixture of gases
An explosive mixture of gases can escape
from the battery during charging and starting
assis tance. #
Fire , naked 0ames, smoking and creating
spar ksmust be avoided. #
Make sure there is adequate ventilation. #
Do not stand overth e batter y. &
W
WARNI NG
ARNI NGRisk of explosion from a frozen
battery
A dischar ged battery may freeze at temp era-
tures slightly abo veor below freezing point.
During starting assistance or battery charging,
battery gas can be released. #
Always allow a battery tothaw before
ch arging it or per form ing starting assis-
ta nce. If
th e indicator/warning lamps in the instrument
cluster do not light up at low temp eratures, it is
ve ry likely that the dischar ged battery has frozen.
In this case you may neither jump-start theve hi-
cle nor charge the batter y.
The service life of a bat tery that has been thawed
may be dramatically shor tened. The starting char-
acteristics may be impaired, especially at low
te mp eratures.
It is recommended that you ha veath awe d battery
ch ecked at a quali/ed specialist workshop. All v
All v ehicles
ehicles
* NO
NOTE
TEDamage caused bynume rous or
ex tended attem ptsto start the engine Numerous or
extended attem ptsto start the
engine may damage the catalytic con verter
due tonon-combusted fuel. #
Avoid numerous and extended attem pts
to start the engine. Obser
vethefo llowing points during starting assis-
ta nce and when charging the batter y:
R Only use undamaged jump lead/charging
cables with a su1cient cross-section and
insulated term inal clamps.
R Non-insulated parts of thete rm inal clamps
must not come into contact with other me tal
parts while the jump lead/charging cable is
connected tothe battery/jump-start connec-
tion point.
R The jump lead/charging cable must not come
into contact with any parts which may mo ve
when the engine is running. 330 330
Breakdown assistance
R
Always make sure that nei ther you nor the bat-
te ry is electrostatically charge d.
R Keep awa y from /re and naked 0ames.
R Do not lean overth e batter y.
Obser vethe additional following points when
ch arging the batter y:
R Only use battery charge rs tested and
appro vedfo r Mercedes-Benz.
R Read the battery charge r's operating inst ruc-
tions before charging the batter y.
Obser vethe additional following points during
starting assistance:
R Starting assis tance may only be pr ovided
using vehicles, batteries or other jump start
devices with a nominal voltage of 12 V.
R The vehicles must not touch.
R V
Vehicles wit
ehicles wit h a pe
h a pe tr
trol engine:
ol engine: jump-start the
ve hicle only when the engine and exhaust sys-
te m are cold. S
S
t
tar
ar ting assist
ting assist ance and c
ance and c har
harging t
ging t he 12 V batt
he 12 V batt ery
ery R R
eq eq uir
uir ements:
ements:
R The vehicle is secured with the electric par k-
ing brake.
R V
Vehicles wit
ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: the
transmission is in position j.
R The vehicle and all elect rical consume rsare
switched o..
R The bonnet is open. Example: engine compartment
#
Slide co ver1 of POSITIVE contact 2onthe
jump-starting connection point in the direction
of the ar row. #
Connect POSITIVE contact 2onyour vehicle
to the positive term inal of the donor battery
using the jump lead/charging cable. Alw ays Breakd
own assistance
331
331
begin with POSITIVE contact
2onyour own
ve hicle /rst. #
Dur
During st
ing st ar
arting assist
ting assist ance:
ance:startthe engine of
th e donor vehicle and run at idle speed. #
Connect the negative term inal of the donor
battery and ear thpoint 3ofyour ow nve hicle
by using the jump lead/charging cable. Begin
with the donor battery /rst. #
Dur
During st
ing st ar
arting assist
ting assist ance:
ance:startthe engine of
yo ur ow nve hicle. #
Dur
During t
ing t he c
he char
harging pr
ging pr ocess:
ocess: startthech arg-
ing process. #
Dur
During st
ing st ar
arting assist
ting assist ance:
ance:letthe engines run
fo r se veral minutes. #
Dur
During st
ing st ar
arting assist
ting assist ance:
ance:before disconnect-
ing the jump lead, switch on an electrical con-
sumer on your ow nve hicle, e.g. there ar win-
dow heater or lighting.
When the starting assistance/charging process is
comple te, per form thefo llowing steps: #
Firs t, re mo vethe jump lead/charging cable
from ear thpoint 3and the negative term inal of
the donor batter y,then POSITIVE contact
2 and the positive term inal of the donor bat-
te ry. Begin each time with the contacts on
yo ur ow nve hicle /rst. #
ATer removing the jump lead/charging cable,
close co ver1 of POSITIVE contact 2.
Fu rther information can be obtained at a quali/ed
specialist workshop. R
R
eplacing t
eplacing t he 12 V batt
he 12 V batt ery
ery #
Obser vethe no tes on the 12 V battery
(/ page 327).
Mercedes-Benz recommends that you ha vethe
12 V battery replaced at a quali/ed specialist
wo rkshop, e.g. at a Mercedes-Benz Se rvice
Centre.
Obser vethefo llowing no tes if youwa nttoreplace
th e battery yourself:
R Alwaysre place a faulty battery with a battery
which meets the speci/c vehicle requ ire-
ments. The
vehicle is equipped with an AGMtech nol-
ogy bat tery (Absorbent Glass Mat) or a lith-
ium-ion batter y.Fu llve hicle functionality is
only guaranteed with an AGM bat tery or lith-
ium-ion batter y.Fo r saf etyre asons, Mercedes-
Benz recommends that you only use batteries
which ha vebeen tested and appro vedfo ryo ur
ve hicle byMercedes-Benz.
R Carryove r de tach able parts, such as vent
hoses, elbow /ttings or term inal co vers from
th e battery being replaced.
R Make sure that theve nt hose is alw ays con-
nected tothe original opening on the side of
th e batter y.
Fi t any existing or supplied cell caps.
Otherwise, gases or battery acid could
escape.
R Make sure that de tach able parts are recon-
nected in the same way. 332 332
Breakdown assistance
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Ý
Please wait 48 V battery
charging *T
he 48 V battery is dischar ged. You ha veswitched on theve hicle while the 12 V battery was being charge d with a
suitable charge r or while ano ther vehicle was pr oviding starting assistance.
The dischar ged 48 V battery is charge d automatically via thevo ltage con verter. ATer a fewminutes, theMotor can be
started again display message will be shown on the inst rument displa y. #
Start theve hicle. #
Drive theve hicle for a while tocharge the 12 V battery and the 48 V battery aTer disconnecting thech arge r from
th eve hicle.
If th eMotor can be started again display message does not appear aTer a fewminutes: #
Tryto start theve hicle. #
Ifth eve hicle does not start, consult a quali/ed specialist workshop.
Cannot start engine See
Owner's Manual *T
he state of charge ofthe 48 V battery is too lo w.You can no longer start theve hicle. #
Switch o. elect rical consume rsthat are not requ ired. #
Connect a suitable charge r appr ovedfo r Mercedes-Benz with su1cient charge output tothe jump-start connection
point of the 12 V battery (/ page 331).
The 48 V battery is charge d via thevo ltage con verter in theve hicle.
Motor can be started again *The 48 V battery has been charge d automatically via thevo ltage con verter. #
Start theve hicle and drive for a while tocharge the 12 V battery and the 48 V batter y. 422 422
Display message
s andwarning/indicator lamps
Service inter
val display.......................... 305
Service requ irements............................. 305
A
A T
TA
A, Anti-theT pr otection
Deactivating the alar m............................. 97
Fu nction.................................................. 96
Interior pr otection....................................98
To w- awa y protection................................ 97
A
A TTENTION ASSIST
TTENTION ASSIST
Function................................................ 195
Setting.................................................. .196
A
A ut
ut hor
hor ised w
ised w ork
orkshop
shop ...................................... 34
A
A ut
ut omatic car w
omatic car w ash
ash...................................... 312
A
A ut
ut omatic car w
omatic car w ash mode
ash mode............................ 312
A
A ut
ut omatic climat
omatic climat e contr
e control
ol............................ 148
A
A ut
ut omatic dist
omatic dist ance contr
ance control
ol,Ac tive Dis-
ta nce Assist DISTRONIC, DISTRONIC.......... .200
A
A ut
ut omatic dr
omatic dr iving lights
iving lights................................ 130
A
A ut
ut omatic emerg
omatic emerg ency call
ency call, Mercedes-
Benz emer gency call system......................... 294
A
A ut
ut omatic engine st
omatic engine st ar
art/st
t/st op
op
ECO start/stop function........................ 165 A
A
ut
ut omatic fr
omatic fr ont passeng
ont passeng er airbag
er airbagshut
shuto.
o.,
PA SSENGER AIR BAG status display
Fu nction.................................................. 50
PA SSENGER AIR BAG indicator la mps...... 51
A
A ut
ut omatic mirr
omatic mirr or f
or folding function
olding function ................. 145
A A ut ut omatic seat adjus
omatic seat adjustment tment........................... 106
A
A ut
ut omatic tr
omatic tr ansmission
ansmission
Changing gear........................................ 171
DIRECT SELECT le ver............................. 171
Drive prog rams...................................... 169
DY NAMIC SELECT switch....................... 169
Engaging drive position.......................... 173
Kickd own.............................................. .174
Manual shiTing...................................... 173
St eering wheel gearshiT paddles............ 173
Tr ansmission position displ ay................. 171
Tr ansmission position s........................... 171
A A ut
ut onomous br
onomous br aking
aking.................................... 210
Axle load
Axle load Trailer operatio n.................................... .374 B
B
Bad w Bad w eat eather light
her light ......................................... 133 Bag hook
Bag hook..................................................... 122
Ball neck Ball neck
Folding out/in........................................ 245
Tr ailer coupling...................................... 246
B
B AS
AS, Brake Assist System............................. 190
Batt
Batt er
er y (12 V batt
y (12 V batt er
ery)
y)
Charging................................................ 331
No tes..................................................... 327
Re placing.............................................. .332
St arting assis tance............................... .329
Batt Batt er
er y (ke
y (ke y)
y).................................................. 77
Batt
Batt er
ery (r
y (r emot
emot e contr
e contr ol)
ol)............................... 153
Batt
Batt er
ery (st
y (st art
arter batt
er batt er
ery)
y)
Charging via Remo teOnline................... 159
Belt
Belt ................................................................ 42
Bicy
Bicy cle r
cle r ack
ack
Load capacity........................................ 374
Tr ailer operatio n.................................... .248
Blind Spo
Blind Spo t Assist
t Assist,Active Blind Spot Assist
Ac tivating/deactivating.......................... 219
Fu nction................................................ 216
BlueT
BlueT ec
ec
Ad Blue ®
................................................ .178 450
450
Index
Car
Car
ing f
ing f or t
or the st
he st eer
eering wheel
ing wheel........................ 317
Car
Car ing f
ing f or tr
or trim elements
im elements...............................3 17
Car
Car ing f
ing f or wheels
or wheels......................................... 315
Centr
Centr al loc
al locking syst
king syst em
em
Button..................................................... 79
Ke y.......................................................... 76
Char Char ging
ging
12 V battery........................................... 331
USB port............................................... .125
Wi relessly charging a mobile phon e........ 125
Chassis
Chassis
Damping characteristics........................ .222
DY NAMIC BODY CONTROL................... .222
Chassis lev Chassis lev el (AIR BOD
el (AIR BOD Y C
Y CONTR
ONTR OL)
OL)
Setting................................................... 223
Chec
Chec king t
king t he coolant lev
he coolant lev el
el........................... 310
Child safe
Child safe ty lock
ty lock
Side window (rear)................................... 72
Child seat
Child seat
Appr oval catego ries.................................60
Basic instructions.................................... 55
Fi tting ISOFIX/i-Size................................ 64
Fr ont passenger seat............................... 70 Re
commendations forch ild restraint
systems................................................... 59
Ris ks/dan gers......................................... 56
Seats suitable for belt-secured child
re straint systems..................................... 67
Seats suitable for i‑Size child restraint
systems................................................... 63
Seats suitable for ISOFIX child
re straint systems..................................... 62
Securing.................................................. 60
Securing tothe front passenger seat
with the seat belt..................................... 71
Securing tothere ar seat with the
seatbelt................................................... 68
To pTe ther................................................ 66
Wi thout automatic front passenger
airbag shuto........................................... .70
Childr Childr en
en
Av oiding dangers in theve hicle............... .56
Basic instructions.................................... 55
Chock
Chock.......................................................... 350
City lighting
City lighting.................................................. 133
Clean v
Clean v ar
arnish
nish............................................... 314 Cleaning
Cleaning
Air/water duct....................................... 312
Au tomatic car wash.............................. .312
Car parts............................................... 315
Decorative foil........................................ 314
High-pressure cleaner............................3 13
Pa int...................................................... 314
Ve hicle interior....................................... 317
Cleaning car
Cleaning car pe pets
ts.......................................... 317
Cleaning seat cov
Cleaning seat cov ers
ers.................................... 317
Climat
Climat e contr
e contr ol
ol
A/C function......................................... 148
Ac tivating/deactivating.......................... 147
Ac tivating/deactivating the A/C func-
tion (control panel)................................. 147
Ac tivating/deactivating the synchro-
nisation function (control panel).............1 48
Au tomatic control................................. .148
Calling up the air conditioning menu....... 147
Climate style function............................ 148
Demisting the windscreen...................... 146
Demisting windo ws................................ 149
Fr ag rance system.................................. 149
Fr ont air vents........................................ 155 452 452
Ind
ex
Opening/closing...................................... 88
Problem..................................................
.91
Ra in closing function................................ 89
Skid c
Skid c hains hains.................................................. 341
Sliding sunr
Sliding sunr oof
oof
Au tomatic functions................................. 94
Closing................................................... .91
Closing with key....................................... 90
Opening................................................... 91
Opening with theke y................................ 90
Problem................................................... 95
Ra in closing function................................ 94
Smar Smar tphone int
tphone int egr
egration
ation, Android Auto,
Apple CarPlay ®
, Mobile phone, Smart-
phone, iPhone ®
Overview................................................ 292
Sno
Sno w c
w chains
hains................................................ 341
Soc ket
Soc ket
12 V (front centre console).................... 124
Tr ailer operatio n..................................... 246
Sound Sound PRE-SAFE ®
Sound................................... 54
Settings................................................. 304
Sound menu.......................................... 304 Wheels/ty
res......................................... 341
Spar
Spar e par e par ts
ts, Mercedes-Benz GenuineParts..... 21
Spar
Spar e wheel
e wheel
Emer gency spa rewheel........................ .356
Specialis
Specialist w t work
ork shop
shop ....................................... 34
Speci/c
Speci/c absorp
absorption r
tion rate
ate................................. 25
Speed
Speed Limiting with the Limiter......................... 197
St oring in cruise control......................... 202
St oring in DISTRONIC............................ .202
St oring in the Limiter.............................. 202
Speed limit
Speed limit Winter tyres.......................................... .200
St
St anding lights
anding lights............................................. 129
St
St ar
art-o.
t-o. assist
assist , Optimised acceleratio n........ 161
St
St ar
art/st
t/st op butt
op butt on
on
Pa rking theve hicle................................. 181
St arting theve hicle............................... .158
Switching on the po wer supply/vehicle.. 157
St
St ar
art/st
t/st op function
op function, ECO start/stop func-
tion............................................................. .165 S
S
t
t art
art er batt
er batt ery
ery
Charging via Remo teOnline................... 159
St
St ar
arting assist
ting assist ance
ance...................................... 331
St
St ar
arting t
ting t he engine
he engine
Emer gency ope ration mode.................... 159
Re mo teOnline....................................... 160
St art/stop but ton.................................. 158
St
St ar
arting-o.
ting-o. aid
aid
Hill Start Assist...................................... 194
Optimised acceleratio n.......................... 161
St
St ationar
ationar y heat
y heater
er
St ationary heater/ ventilation................. 151
St
St ationar
ationar y heat
y heater/v
er/ventilation
entilation
Bat tery remo tecont rol........................... 153
Operating.............................................. 152
Problems with remo tecont rol................ 154
Re mo tecont rol...................................... 152
Re mo tecont rol displa y........................... 153
St St eer Assist
eer Assist, STEER CONTROL..................... 193
S
S TEER C
TEER C ONTR
ONTROL
OL,Steer Assist..................... 193
St
St eer
eer ing wheel
ing wheel
Ad justing electrically.............................. 112
Buttons.................................................. 253 Ind
ex
471
471