Page 321 of 348

Engine
Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
00AC
Coolant warning lamp The
redc oolant warning lam plight supw hilethee ngine is running.
* Po ssible causes:
R temp eratur esensor malfunctioning
R coolant le veltoo low
R air suppl ytothe engine radiator obstructed
R engin eradiator fanf aulty
If aw arning tone also sounds, thec oolant has exceeded thet empera‐
tur eof2 48 °F (120 °C). &
WARNING Danger of bu rnsw hen opening theh ood
If yo uo pen theh ood when thee ngine has overheated or during a
fi re inthee ngine compartment, youc oul dc om eintoc ontact wi th
ho tg ases or other escaping operating fluids. #
Befor eopening theh ood, allo wthe engine tocool down. #
Inthee vent of afireint he engine compartment, keep the
hood closed and call thef ires ervice. #
Stop immediately in accordance wit hthe traf ficc onditions and
switc hoffthee ngine. Do no tcontinue driving. #
Obser vethem essages on them ultifunction displa y.
If th ec oolant temp eratur edispla yisatt he lowerend of thet empera‐
tur es cale: #
Consult aqualified specialis tworks hop.
Otherwise: #
Leavethev ehicle and keep asafed ista nce from thev ehicle until
th ee ngine has cooled down. #
Chec kthe coolant le vel(/ page218). #
Ensu rethat thea ir supply tothee ngine radiator is no tobstructed. #
Without subjectin gthe engine toexc essiv estrain, continue tothe
nea rest qu alified specialis tworks hop. Ensur ethat thec oolant
te mp eratur edispla yremain sbelo w2 48 °F (120 °C).
003D
Electrical malfunction
wa rning lamp The elect
rical malfunction redw arning lam plight sup.
*A malfunction has occur redint he electrics. #
Read them essages on them ultifunction displa y.
00D4
Fu elreser vewarning
lamp The fuel
reser veyello ww arning lam plight supw hilethee ngine is on.
*T he fuel suppliesh avereached ther eser veleve l. #
Refuel. Displ
aymessa gesa nd warning and indicator lamps 319
Page 322 of 348

Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
00B9
Engine diagnosis warning
lamp The
yello wC heckEngine warning lam plight supw hilethee ngine is on.
*A malfunction has occur redint he engine, thee xhau stsystem or the
fuel sy stem.
The emissions limit value ma yhave been exceeded and thee ngine
ma yber unninginemergency ope ratio nm ode. #
Have thev ehicle checkedass oon as possible at aqualified spe‐
cialis tworks hop. Ti
res Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
0077
Ti re pressur emonitoring
sy stem warning lamp
fl ashes The
yello wt irep ressur emonitoring sy stem warning lam p(pressure
loss/malfunction) flashes forr oughly one minut eand then lights up per‐
manentl y.
*The ti repressur emonitoring sy stem is malfunctioning. &
WARNING Thereisar isk of an accident if thet irep ressure
monitoring sy stem is malfunctioning
If th et irep ressur emonitoring sy stem is malfunctioning, it is not
able toissue awarning if ther eisp ressur eloss in one or mor eof
th et ires.
Un derinflated tires ma y,fore xamp le, impair thed riving, steering
and braking characteristics. #
Have thet irep ressur emonitoring sy stem checkedataq uali‐
fi ed specialis tworks hop. #
Visit aq ualified specialis tworks hop.
0077
Ti re pressur emonitoring
sy stem warning lamp
light sup The tir
epressur emonitor yello ww arning lam p(pressur eloss/malfunc‐
tion )light sup.
*The tir epressur emonitor has de tected atirep ressur elossinatl east
one tire. &
WARNING Risk of an accident du etoinsufficient tir epres‐
sure
Ti re pressures that ar etoo lo wpose thef ollowing hazards:
R The tires ma yburst,e speciall yasthe load and vehicle speed
increase.
R The tires ma ywear excessively and/or une venly, whic hmay
greatl yimp air tir etraction.
R The drivin gcharacteristics, as well as steering and braking,
ma ybeg reatl yimp aired.
Yo uc oul dthen lose contro lofthevehicle. #
Obser vether ecommended tir epressu re. #
Adjus tthe tir epressur eifn ecessar y. 320
Displa ymessages and warning and indicator lamps
Page 323 of 348
Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions #
Stop thev ehicle in asafel ocation. #
Chec kthe tir epressur eand thet ires. Displa
ymessages and warning and indicator lamps 321
Page 324 of 348

1,
2, 3. ..
3-zone automatic climat econtrol
(operating unit) .................................... .101
12 Vs ocket
see Soc ket(12 V)
11 5Vs ocket
see Soc ket(11 5V)
360° Camera ........................................ 15 9
Car e................................................. 224
Fu nctio n........................................... 15 9
Selecting aview. ............................... 161
Switching au tomatic operation
on/of f(rear vie wcamera) ................. 161 A
ABS (Anti-loc kBraking Sy stem) .......... 14 6
Ac celeration
see Usin gkickdown
Ac oustic locking verification signal
Ac tivating/deactivating ...................... 47
Ac tivating/deactivatin gthe HOLD
function ................................................. 15 5
Ac tiv eB rake Assi st.............................. 14 9
Fu nction/no tes. ............................... 14 9
Setting .............................................. 15 0
Ac tiv eD ista nce Assis tDISTR ON IC ..... 15 2
Callin gupas peed........................... .153
Fu nctio n........................................... 15 2
Increasing/decreasing speed ........... 15 3
Re quirements .................................. .153
St eering wheel buttons ..................... 15 3
St oring aspeed ................................ 15 3
Switching off/deacti vating ............... 15 3
Switching on/activating ................... 15 3
Sy stem limitations ............................1 52
Ac tiv eL aneK eeping Assist .................166
Fu nctio n........................................... 16 6
Sy stem limitations ............................1 66
Tr ailer operation .............................. .166
Ac tiv eP arking Assist
Maneuvering assis tance ................... 161
Ad aptiv ecruise control
see ActiveD ista nce Assi stDISTRONIC
Ad aptiv eHighbeam Assist
Fu nctio n............................................. 86
Switching on/o ff................................ 86
Ad d-on equipment .................................. 21
Ad d-on equipment guidelines ................21Ad
ditional tur nsignal light (all-
wheel driv evehicles) ............................. 92
Ad diti ve ................................................. 280
DEF .......................................... 136, 279
Engine oi l......................................... 280
Ad diti ves
Fu el .................................................. 277
Ad diti ves( DEF)
see DEF
Ad diti ves( engine oil)
see Additive
Ad diti ves( fuel)
see Fuel
Ad dres sbook
see Contacts
AD R(wo rkings peed control)
Ad justing .......................................... 16 8
Fu nctio n........................................... 167
Switching on/of f.............................. 167
Af ter-sales service center
see ASS YSTP LUS
Air nozzles see Air vents
Ai rv ents ....................................... .104, 105
adjustin g(front) ................................ 104
Ad justing (roof) ................................. 105
Re ar passenger compartment .......... 105
Airbag ...................................................... 35
Ac tivation ........................................... 32
Fr ont airbag (driver ,fro nt
passenger) ......................................... 35
Ins tallation locations .......................... 35
Overvie w........................................... .35
Pr otection impaired ............................36
Pr otection pr ovided ............................ 35
Side airbag ........................................ .35
Wi ndo wcurtain airbag ........................ 35
Alar msystem
see ATA( Anti -Thef tAlarms ystem)
Alertness assistant see ATTENTION ASSIST
All-wheel drive Engaging ...........................................1 25
Engaging/disengaging ..................... .125
LO Wr ang e........................................ 12 6
No tes. ............................................... 124
Android Auto ......................................... 19 9
Connecting amobile phon e............. .200
Endin g............................................. .201
No te ................................................. 200 322
Index
Page 325 of 348

Overvie
w.......................................... 19 9
Sound settings ................................. 201
Tr ans ferred vehicle dat a...................2 01
Animals Pets in thev ehicle .............................. 45
Anti-loc kbraking sy stem
see AB S(Anti-loc kBrakin gS ystem)
Anti-skid chains
see Sno wchains
Anti-thef tAlarms ystem
see ATA( Anti -Thef tAlarms ystem)
Anti-thef tprotection
Immobilizer ........................................ .61
Anti-thef tprotection
see ATA( Anti -Thef tAlarms ystem)
Apple CarPlay ®
.....................................1 98
Connecting an iPhone ®
............ 198, 19 9
Ending .............................................. 19 9
No tes. ............................................... 19 8
Overvie w.......................................... 19 8
Sound settings ................................. 19 9
Tr ans ferred vehicle dat a...................2 01
Asht rays
In thew indshield stowagec om‐
partment ............................................ 79
ASR (acceleration skid cont rol) .......... .147
Assistance graphic (on-boar dcom‐
puter) ..................................................... 178
ASS YSTP LUS ........................................ 214
Batter ydisconnection period s.......... 214
Displ aying thes ervice due dat e........ 214
Fu nction/no tes. ................................ 214
Re gular maintenance work ............... 214
Special service requirements ............ 214
ATA (Anti-Thef tAlarms ystem) .............. .61
Ac tivating/deactivating thei nterior
motion sensor .................................... 63
Fu nctio n.............................................. 61
Interior motion sensor function .......... 63
St opping thea larm. ............................ 62
Switching thet ow -awa ya larm
on/of f............................................... .62
To w- aw ay alar mfunction .................... 62
At tachments .......................................... .21
AT TENTION ASSI ST....................... 162, 16 3
Fu nctio n........................................... 16 2
Setting .............................................. 16 3
Sy stem limitations ............................1 62
Au thorized workshop
see Qualified specialis tworks hop Au
tomatic distanc econtrol
se eA ctiv eDista nce Assi stDISTRONIC
Au tomatic drivin glights ....................... .84
Au tomatic transmission
DIRECT SELEC Tleve r........................ 12 2
Engaging driv eposit ion. ................... 12 3
Engaging neutral ............................... 12 2
Engaging reve rseg ear ...................... 12 2
Kickdown .......................................... 124
Re stricting thes hiftrang e................ 124
Selecting pa rkposition .....................1 23
Tr ansmission position displa y........... 12 2
Tr ansmission position s..................... 12 2
Au xiliar yheating ..................................1 05
Fu nctio n........................................... 105
Axle load ................................................ 274 B
Bac ksuppo rt
see Lumbar suppor t(4-w ay)
BA S(Brak eAssis tSystem) .................. 14 6
Battery Charging ........................................... 231
Charging avehicle batter y................2 31
Disconnecting thea uxiliar ybattery
in thee ngine compartmen t.............. 236
Disconnecting thes tarter batter y.... 234
Jump -sta rting (vehicle )..................... .231
Ke y. .................................................... 47
No tes( vehicle) ................................. 230
Re moving or ins talling thes tarter
batter y............................................. 235
St arterb atter y................................. 233
Batter ymain switch
No tes. ............................................... 12 0
Switching po wersupp lyon/of f......... 121
Belt see Sea tbelt
Bel twarning
see Sea tbelt
Blind Spo tAssist .................................. 16 3
Ac tivating/deactivating .................... 16 4
Fu nctio n........................................... 16 3
Re ar Cross Traf ficA lert. ................... 16 5
Sy stem limitations ............................1 63
Blue tooth ®
............................................ 19 2
Ac tivating/deactivating .................... 19 2
Information .......................................1 92
Bottle holder .......................................... .78 Index
323
Page 326 of 348

Brake
ABS (Anti-loc kBraking Sy stem) ........ 14 6
Ac tivating/deactivating theH OLD
function ............................................ 15 5
Ac tiveB rake Assi st........................... 14 9
BA S(Brak eAssistSystem) ............... 14 6
Braking wi thparkin gbrake :. ............ .114
Downhil lgradien t.............................. 11 4
Driving no tes. ............................ 111,114
EBD (electroni cbrake forc ed istri‐
bution) ..............................................1 48
Heavy and light loads ........................ 11 4
HOLD functio n.................................. 15 5
Ne wb rake discs and brak epads/
linings ............................................... 11 4
Re stricted braking ef fect (salt-trea‐
te dr oads) .........................................1 14
We troad sur faces ............................. 11 4
Brak eAssis tSystem
see BAS(Brak eAssistSystem)
Brak eAssistance
see BAS(Brak eAssistSystem)
Brak efluid
No tes. .............................................. 282
Brak eforce distribution
EB D( electronic brak eforce distri‐
bution) ..............................................1 48
Brakes Breaking-in no tes. ............................. 111
New/replaced brakepads/brake
discs .................................................1 11
Breakdown Assi stanc eoverview. .......................... 18
Changin gawheel ............................ .263
Ro adside Assis tance ......................... .23
To ws tartin g. .................................... .240
To wing away ..................................... 237
Tr ansportin gthe vehicle ...................2 39
Breakdown see Flat tire
Breaking-in no tes..................................1 11
Bulbs Reversing light .................................... 94
Buttons Steering wheel ..................................1 75C
Call list Calling up options ............................ .198
Making acall ................................... .198
Overvie w.......................................... .197 Calls
...................................................... .196
Ac cepting ......................................... 19 6
Ac tivating functions du ring acall. ..... 19 6
Calls wit hseveral participant s......... .196
Declining .......................................... 19 6
Ending acall. .................................... 19 6
Incoming call during an existing
call .................................................. .196
Making ............................................. 19 6
Camera see 360° Camera
see Rear vie wcamera
Car wash
see Care
Car wash (care) .................................... 222
Care .......................................................2 26
Carw ash .......................................... 222
Carpe t..............................................2 26
Displ ay............................................. 226
Exterio rlighting ................................ 224
Headline r.......................................... 226
Matt efinish ...................................... 223
Pa int ................................................ .223
Pla stic trim ...................................... .226
Po we rw ashe r................................... 222
Re alwo od/trim elements ................2 26
Re ar vie wcamera/360 °Camer a..... 224
Se at bel t........................................... 226
Sea tcove r........................................ 226
Sensor s............................................ 224
Ta ilpipes .......................................... .224
Tr ailer hit ch...................................... 224
Wa shing byhand .............................. 223
Wheels/rims .................................... 224
Wi ndo ws ........................................... 224
Wi per blades .................................... 224
Cargo compartment lighting Motion de tector .................................. 89
Cargo co mpartment ventilation
Deactivating .....................................1 08
Setting .............................................. 108
Cargo tie-down point ...........................209
Cargo tie-down points Informatio n...................................... 289
Carpe t(ca re) ......................................... 226
Central locking Wireless central lockin g..................... 24
Chang ebulbs
Ad ditional tur nsignal light (all-
wheel driv evehicles) .......................... 92 324
Index
Page 327 of 348

Changing
abulb
see Changing bulbs
Changing awheel
Lo we ring thev ehicle .........................2 67
Preparing .......................................... 263
Ra ising thev ehicle ........................... 264
Re moving awhee l............................ 266
Changing address .................................. 23
Changing bulbs ....................................... 90
High beam. ......................................... 91
Indicator (front) .................................. 91
Interior lamps (rear compartment) ..... 94
License plate lamp............................. 93
Ligh tbulbt ypes haloge nheadlamps .. 91
Lo wb eam ........................................... 91
No tes. ................................................90
Ta il lam pbulb types (Cargo Van
and Passenger Van) ............................ 92
Ta il lam pbulb types (chassis) ............ .93
Tu rn signal light (rear) (chassis) ..........94
Changing lamps see Changing bulbs
Changing owner .....................................23
Cha racteristics of thet ire .................. .257
Cha rging
Bat tery ............................................. 231
Mobil ephone (wireless )..................... 82
Child saf etyl oc k( doors) ........................ 44
Child seat Attach ing (no tes) ................................ 40
Basic instructions ...............................36
Fr ont-passenger seat (no tes) .............. 43
LA TC H-type (ISOFIX )(ins talling) .......... 41
No tesonr isksa nd danger s................37
Re arwa rd-facing child restra int sys‐
te m( Information) .............................. .43
Secu ring on thef ront passenger
seat ....................................................43
Secu ring on ther ear seat ................... 42
To pT ether .......................................... 42
Children Avoiding danger sinthevehicle ..........37
Basi cinstructions ............................... 36
Special sea tbeltr etra ctor .................. 40
Ci ga rettel ighter ..................................... 79
Cleaning see Ca re
Cleaning waterd rain valveoft he air
intak ebox ............................................ .220
Climat econtrol
Ac tivating/deactivating .................... 101Ad
justing rear-compartment heat‐
ing .................................................... 102
Air di stribution settings .................... 103
automaticall ycontrollin g(rear
passenger compartment )................. 103
Au xilia ryheating ...............................1 05
Carg ocompartmentv entilation ........ 108
Clearing fogged up windo ws............. 103
Control panel ford ual-zone auto‐
matic clima tecontrol ....................... 100
Controllin gautomaticall y................. .102
Hot-water auxiliar yheater. .............. .106
Operating unit for3 -zone auto‐
matic clima tecontrol ........................ 101
Re frigerant ....................................... 284
Setting thea ir distribution ................1 03
Switching air- recirculation mode
on/of f.............................................. 104
Switching synchronization function
on/of f(control panel )...................... 103
Switching theA /C function on/of f..1 02
Switching ther ear window
defros tero n/of f.............................. .104
Switching thew indshield heater
on/of f..............................................1 04
Ve ntilating thev ehicle (con veni‐
ence opening) .................................... 60
Ve ntilation nozzles at front ............... 104
Ve ntilation nozzles in ther oof ..........1 05
Ve ntilation nozzles, rear passenger
compartment .................................. .105
Cock pit (o verview) .................................. .6
Combination switch see High beam
see High-beam flasher
see Indicator
Compu ter
see On-boar dcomputer
Contacts ................................................ 197
Callin gup. ........................................ 197
Del eting ............................................ 197
Downloading (from mobil ephone). ... 197
Information ....................................... 197
Making acall .................................... 197
Na me form at .................................... 197
Con venience closing .............................. 60
Con venience opening ............................. 60
Con versions ............................................ 21
Coolant Fillin gcapacitie s............................... 283
Coolan t(engine)
Che cking le vel. ................................ .218 Index
325
Page 328 of 348

No
tes. .............................................. 283
Copyright License ............................................... 29
Tr ademar ks........................................ 29
Co rnering light ...................................... .85
Crosswind Assist Function/no tes. ............................... 14 8
Cruise control ...................................... .151
Ac tivating .......................................... 151
Buttons ............................................. 151
Callin gupas peed........................... .151
Deactivating ...................................... 151
Fu nctio n............................................ 151
Re quirements .................................. .151
Selecting ........................................... 151
Setting thes peed .............................. 151
St oring aspeed ................................. 151
Sy stem limitations ............................1 51
Cus tomer Assi stance Center (C AC)...... 26
Cus tomer Relations Department .......... 26D
Dashboa rd
see Cockpit (o verview)
Dashboa rdlighting
see Instrument lighting
Data recordin g(vehicle) ........................ 27
Date Setting thet ime and dat eautomat‐
icall y.................................................1 91
Deale rship
see Qualified speciali stwo rkshop
Declaration of conformity Vehicle componentsw hichreceive
and/or transmit radio wav es .............. 24
Wi reless vehicle components. ............24
DEF ................................................ 136, 279
Ad ditiv e................................... .136, 279
Displ aying thef ill le vel. .................... .137
Filling capacity ................................. 280
Pu rity ........................................ 136, 279
Re filling ............................................ 137
Definitions (ti resa nd loading) ............ 259
De tectin ginat tentiveness
see ATTENTION ASSIST
Diagnostics connection .........................25
Dial telephone number (on-board
computer) ............................................ .180 Diesel
Lowo utside temp eratures ................2 77
No tes. ............................................... 277
Diesel pa rticulat efilter
Au tomatic rege neration .................... 12 0
Displ aying load ................................ .120
No tes. ............................................... 12 0
Digita lspe edome ter............................. 178
Dimming thei nsid erearvi ewmirror .... 98
DIREC TSELECT lever ............................ 12 2
Engaging driv eposit ion. ................... 12 3
Engaging neutral ............................... 12 2
Engaging pa rkposition automati‐
call y................................................. .123
Engaging reve rseg ear ...................... 12 2
Fu nctio n........................................... 12 2
Selecting pa rkposition .....................1 23
Dire ction indicator
see Indicator
Displa y(care) ........................................ 226
Displa y(MBUX multimedia sy stem)
Settings ............................................ 191
Displa y(mu ltimedi asystem) .............. .187
Home screen .................................... 186
No tes. ............................................... 185
Operating ......................................... 187
Setting acoustic ope rating feed‐
bac k.................................................1 87
Displa y(on-boa rdcompu ter) ............... 176
Displa ymessage .................................. .291
Callin gup( on-boar dcompu ter) ........ 291
No tes. ............................................... 291
Displa ymessages
00AC ............................................... 300
00B2 ---mph................................... 297
003D 12VB atter ySee Operator's
Manual .............................................3 02
0099 Additiv eSystemF ault Emer‐
ge ncy Op.: XXX mphS ee Opera‐
to r's Manual ..................................... 304
0099 Additiv eSystemF ault See
Operator' sManual .......................... .304
0099 Additiv eSystemF ault Starts
until Emerg. Op. :XXX See Opera‐
to r's Manual ..................................... 304
Û ATTENTION ASSIS TInopera‐
tive ................................................... 299 326
Index