Displa
ymessages
Possible causes/consequences and 0050 0050Solutions Currently Unavailable
Radar Sensors Dirty
*
The radar sensor sy stem is malfunctioning. Possible causes:
R dirtont he sensors
R heavy precipitation
R extende dcountr ydrive sw ithout other traf fic, e.g. in thed esert
The following sy stems ma ybeaffected:
R ActiveD istan ce Assi stDISTRONI C(/ page 144)
R BlindSpotA ssist(/ pag e155)
R ActiveB rake Assi st (/ pag e140)
Driving sy stems and driving saf etys ystems ma ybem alfunctioning
or temp orarily una vailable.
When thec auses ha vebeen eliminated, thed riving sy stems and
driving saf etys ystems will be available again.
If th ed ispla ymessag edoes no tdisappear: #
Stop in asafel ocation. #
Clean all sensor s(/pag e274). #
Re-sta rt thee ngine. #
If necessar y,visit aqualified specialis tworks hop.
Active Distance Assist
Now Available *T
heActiveD ista nce Assi stDISTRONI Cisoperationa laga in and can
be acti vated( /pag e145).
00D9
Off *T
he HOLD function has been deactivated because thev ehicle is slip‐
ping or an activation condition has no tbeen met. #
Re-acti vate theH OLD function later on or checkt he HOLD func‐
tion's activation conditions (/ page146).
Traffic Sig nAssist Inop-
erative *T
heTraf ficS ign Assi stis malfunctioning. #
Visit aq ualified specialis tworks hop.
Traffic Sign Assist Cam-
era View Restricted See
Operator's Manual *
The camer aviewisr educed. Possible causes:
R dirtont he windshield in thec amera's field of vision
R heavy precipitation or fog
Driving sy stems and driving saf etys ystems ma ybem alfunctioning
or temp oraril yunavailable.
When thec auses ha vebeen eliminated, thed riving sy stems and
driving saf etys ystems will be available again.
If th ed ispla ymessag edoes no tdisappear: #
Stop in asafel ocation. #
Clean thew indshield.
Traffic Sign Assist Cur-
rently Unavailable See
Operator's Manual *T
raffic Sign Assis tistemporarily una vailable (/ page153). #
Continu edriving.
Whe nthe causes ha vebeen eliminated, thes ystemw ill be avail‐
able again.
The windshiel disdirty.
Clean thew indshield. 346
Displaymessa gesa nd warning and indicator lamps
Displa
ymessages
Possible causes/consequences and 0050 0050Solutions #
Addatl east2.5gal(9. 5l)ofD EF (/pag e130). The 00E2DEF
indica torlamp onl ydisappea rswhen thev ehicle is stationar y,at
th el ates tafter 20 seconds, as soon as yous wit ch on thei gni‐
tion or star tt he engine af tert opping up.
00E2
Refill Additive Emer-
gency Op.: XXX mph See
Operator's Manual *
In addition, they ello wD EFindicator lamp 00E2lightsupont he
instrument clus tera nd aw arning tone sounds.
If the Refill Additiv eEmergency Op.: XXX mph See Operator's Man-
ual displa ymessag eisshown, youc an only driv ethe vehicle at a
maximum speed of 5mph (8 km/h). #
Addatl east2.5gal(9. 5l)ofD EF (/pag e130).
The DEF indica torlamp 00E2 only disappea rswhen thev ehicle
is stationar y,at thel ates tafter 20 seconds, as soon as you
switc hont he ignition or star tt he engine af terr efilling.
0099
Additive System Fault
See Operator's Manual *
In addition, they ellow 00B9CheckEngine warning lam ponthe
instrument clus terl ights up and awarning tone sounds.
The DEF reducing agent is con taminated, diluted or is no tcompliant
wit hISO 222 41 . #
Have theD EFsuppl ytank cleaned an drefilled at aqualified spe‐
cialis tworks hop as soon as possible.
0099 Additive System Fault
Starts until Emerg. Op.:
XXX See Operator's Man-
ual *
In addition, they ellow 00B9CheckEngine warning lam ponthe
instrument clus terl ights up and awarning tone sounds.
The DEF reducing agent is con taminated, diluted or is no tcompliant
wit hISO 222 41 .
The exhaus tgas af tertre atment sy stem is defectiv eoranemissions-
re leva nt malfunction ha soccu rred. This malfunction or defect can
damag ethe exhaus tgas af tertre atment sy stem.
Af tert he messag eappear sfor thef irst time ,the engine can onl ybe
st ar teda nother 10 times. The numbe rofremaining engine starts XX
(1 0to1)iss hown inthem essag eevery time thee ngine is star ted. #
Visit aq ualified specialis tworks hop immediately.
0099 Additive System Fault
EmergencyO p.: XXX
mph See Operator's
Manual *
In addition, they ellow 00B9CheckEngine warning lam ponthe
instrument clus terl ights up and awarning tone sounds.
Yo uc an only driv ethe vehicle at amaximum speed of 5mph
(8 km/h). #
Visit aq ualified specialis tworks hop immediately. Ti
res Displa
ymessages
Possible causes/consequences and 0050 0050Solutions
Tire Pressure Monitor
Inoperative No Wheel
Sensors *T
he ins talled wheels do no thave suitable tir epressur esensors. The
tir ep ressur emonitor has been switched off. #
Install wheels wit hsuitable tir epressur esensors. 352
Displa ymessages and warning and indicator lamps
Displa
ymessages
Possible causes/consequences and 0050 0050Solutions
0077
Tire Press. Sen. Missing *T
he tir epressur esensor signal is missing from one or mor etires.
No pressur evalue is displa yedf or thet ireinq uestion. #
Have thef aulty tir epressur esensor replaced at aqualified spe‐
cialis tworks hop.
Tire Press. Monitor Cur-
rently Unavailable *T
her eisi nterfere nce from apowe rful source of radio wav es As a
re sult, no signals from thet irep ressur esensor sare re ceived. The
tir ep ressur emonitor is temp orarily una vailable. #
Continue driving.
As soon as thec ause has been eliminated, thet irep ressure
monitor automaticall yswitches on.
0077 Warning Tire Malfunction *T
he pressur einone or mor etires suddenl yfalls. The wheel position
is shown. &
WARNING Risk of an accident from driving wi thaflat tire
Flat tires ar edangerous in thef ollowing ways:
R The tires can overheat and cause afire.
R The driving characteristics, as well as steering and braking,
ma ybeg reatl yimp aired.
Yo uc oul dthen lose contro lofthevehicle. #
Do no tdrive wit haf lat tire. #
Obser vethen otes on flat tires. In
fo rm atio nabout flat tires (/ page280). #
Stop thev ehicle in accordance wit hthe tra ffic conditions. #
Chec kthe tires.
0077 Check Tires *T
he pressur einone or mor etires has fallen significantl y.The wheel
position is shown. &
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 excessivel yand/or une venly ,w hich may
greatly impair tir etraction.
R The driving characteristics, 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. #
Stop in accordance wit hthe tra ffic conditions. #
Chec kthe tir epressur e(/pag e296) and thet ires. Displa
ymessages and warning and indicator lamps 353
Displa
ymessages
Possible causes/consequences and 0050 0050Solutions
Switc hOff Lights
0049 Auto Lamp Function
Inoperative *T
he light sensor is malfunctioning. #
Visit aq ualified specialis tworks hop.
0049
Malfunction See Opera-
tor’s Manual *T
heexterior lighting is malfunctioning. #
Visit aq ualified specialis tworks hop.
Ve hicles with traile rhitch:af use mayhaveb lown. #
Stop in accordance wit hthe tra ffic conditions. #
Chec kthe fuses, and replace them if necessary(/ page290).
0049
Check Left Low
Beam (exa mp le) *T
he bulb in question is faulty. #
Visit aq ualified specialis tworks hop.
or #
Chec kwhether changing theb ulb is permitted. Indicator and
warning lamps Overvie
wofwarningand indicator lamps When
thei gnition is switched on, man ysystems
per form aself-test. Som ewarning and indicator
lamps ma yswitc honorf lashtemp oraril yduring
th is time. This behavior is no cause fora larm.
These warning and indicator lamps onl ysignal a
malfunction if they light up or flash, onc ethe
engine has been star tedort hevehicle is in oper‐
ation.
Wa rning and indicator lamps:
0058 Lo
wb eam (/ page80)
0060 Pa
rking light (/ page80)
0057 High beam (/
page81)
003E003D Tu
rn signal (/ page81)
005E Re
ar fogl ight (/ page80)
00E9 Saf
etyb elt no tfas tened
(/ page365)
0027 and
004D USA: Brakes (red) (/
page360)
004D Canada: Brakes (red) (/
page360)
004D Brakes (yellow) (/
page360)
0025 ABS malfunctioning (/
page360)
002E Off-road
gear 00E5
ESP®
(/ page360)
00BB ESP®
OFF (/ page360)
00D4 Ac
tiveB rake Assi stdeactivated
(/ page140)
0049
and 0024 USA: Electric parking brak
eapplied
(red) (/ page360)(/pag e360)
0024 Canada: Electric parkin
gbrake
applied (red) (/ page360)
(/ page360)
0024 Electric parkin
gbrake (yellow)
(/ page360) (/ page360)
00CC Po
we r-assis teds teering malfunc‐
tionin g(/ pag e365)
003D Elect
rical malfunction
(/ page 366)
0075 Re
stra int sy stem (/ page360)
00B9 Chec
kEngine (/ page366)
00D4 Fu
elreser vewit hfuel filler flap loca‐
tio nindicator (/ page366)
00AC Coolan
ttoo hot/cold (/ page366)
00BA Dis
tance warning (/ page365)
0028 Preglow
0077 Ti
re pressur emonitor Displa
ymessages and warning and indicator lamps 359
Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
Po we rsteering sy stem
wa rning lamp &
WARNING Risk of accident if steering capability is impaired
If th es teering no longer functions as intended, thev ehicle's operat‐
ing saf etyisj eopardized. #
Consult aqualified specialis tworks hop. #
Read them essages on them ultifunction displa y. 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 the
engine has cooled down. #
Chec kthe coolant le vel(/ page268). #
Ensur ethat 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 tem‐
peratur edispla yremain sbelo w2 48 °F (120 °C). 366
Displaymessa gesa nd warning and indicator lamps
Android
Auto ......................................... 24 0
Connecting amobile phon e............. .240
Ending ............................................... 241
No te ................................................. 24 0
Overvie w.......................................... 24 0
Sound settings .................................. 241
Tr ans ferred vehicle dat a.................... 241
Android Auto™
Control usin gthe applicationb ut‐
to ns .................................................. 241
Animals Pets in thev ehicle ...............................41
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 ........................................ 56
Anti- theftp rotection
see ATA( Anti -Thef tAlarms ystem)
Apple CarPlay™ .................................... 239
Connecting an iPhone ®
.................... 239
Control using thea pplication but‐
to ns .................................................. 24 0
Ending .............................................. 24 0
No tes. .............................................. 239
Overvie w.......................................... 239
Sound settings ................................. 239
Tr ans ferred vehicle dat a.................... 241
Asht rays
In thew indshield stowagec om‐
partment ............................................ 75
ASR (accele ratio ns kidc ontrol) .......... 13 8
Assistance graphic (on-boar dcom‐
puter) ..................................................... 16 9
ASS YSTP LUS ........................................ 264
Batter ydisconnectio nperiods .. ....... 264
Displaying thes ervice due dat e.......2 64
Fu nction/no tes. ............................... 264
Re gular maintenance work ............... 264
Specia lservice requirements .......... .264
ATA (Anti-Thef tAlarms ystem) .............. 57
Ac tivating/deactivating thei nterior
motion sensor .................................... 58
Fu nctio n............................................. 57
Interior motion sensor function .......... 58
St opping thea larm. ............................ 57
Switching thet ow -awa ya larm
on/of f............................................... .58To
w- aw ay alar mfunction .................... 57
At tachments .......................................... .20
AT TENTION ASSI ST....................... 152, 15 3
Fu nctio n........................................... 15 2
Setting .............................................. 15 3
Sy stem limitations ............................1 52
Au thorized workshop
see Qualified specialis tworks hop
Au tomatic distanc econtrol
se eA ctiv eDista nce Assi stDISTRONIC
Au tomatic drivin glights ....................... .80
Au tomatic transmission
DIRECT SELEC Tleve r........................ 11 6
Engaging driv eposit ion. .................... 11 8
Engaging neutral ............................... 11 7
Engaging reve rseg ear ....................... 11 7
Kickdown .......................................... 11 9
Re stricting thes hiftrang e................. 11 8
Selecting pa rkposition .....................1 17
Tr ansmission position displa y........... 11 6
Tr ansmission position s..................... .116
Au xiliar yheating ..................................1 00
Fu nctio n........................................... 100
Axle load .............................................. .323 B
Bac ksupport
see Lumbar suppor t(4-w ay)
BA S(Brak eAssis tSystem) .................. 13 8
Battery Charging ........................................... 281
Charging avehicle batter y................2 81
Disconnecting thea uxiliar ybattery
in thee ngine compartmen t.............. 286
Disconnecting thes tarter batter y.... 284
Jump -sta rting (vehicle )..................... .281
Ke y. .................................................... 43
No tes( vehicle) ................................. 280
Re moving or ins talling thes tarter
batter y............................................. 285
St arterb atter y................................. 283
Batter ymain switch
No tes. ............................................... 11 5
Switching thep owe rsupp lyon/of f... 11 5
Belt see Sea tbelt
Blind Spo tAssist .................................. 15 5
Ac tivating/deactivating .................... 15 6
Fu nctio n........................................... 15 5
Re ar Cross Traf ficA lert. ................... 15 6
Sy stem limitations ............................1 5537 0
Index
00CE
Currentl yU navailable Cam‐
er aD irty .......................................... .345
Curr ently Un available Radar Sen‐
sor sD irty .........................................3 46
0025Cu rrently Un available See
Operator' sManual .......................... .344
00E5 Currentl yU navailable See
Opera tor's Manual ........................... 343
00AFDon't Forget Your Key .............. 354
Driver' sDoorO pen&T ransmission
No tinPR isk ofVehicle Rolling
Aw ay ................................................. 357
00B3Engine Oil Le velC ann otBe
Measured ........................................ .348
00B2 Engine Oil Le velL ow Stop
Ve hicle Turn Engine Off .................... 349
00B2Engine Oi lPressur eStop
Switc hOffEngine ............................. 348
00B2 EngineO ilRe duce Oil Le vel.....3 49
0075Fr ont LeftMalfunction
Service Required (e xample).............. 339
00D4Fu el LevelL ow ........................ .348
0024Incline TooS teep See Opera‐
to r's Manual .................................... .340
003BInope rativ eB atter yLow ........... 355
003B Inoperati veRefuel Vehicle .......3 55
0025 Inoperativ eSee Operator's
Manual ............................................. 344
00E5Inope rativ eS ee Operator's
Manual ............................................ .343
007A Inoperativ eSee Operator's
Manual ............................................. 343
003BInope rativ eS ee Operator ’s
Manual ............................................. 355
00AFKe yNotDe tected (red dis‐
pl ay messa ge).................................. 354
00AFKe yNotDe tected (whit edis‐
pl ay messa ge).................................. 354
0075Lef tSide Cur tain Airbag Mal‐
function Service Required (e xam‐
ple) .................................................. .339
0049Malfunction See Operator ’s
Manual ............................................. 359 00CB
Maximum Speed Exceeded ..... 345
NP ermanentl yActiv eRiskofR oll‐
ing Away ........................................... 357
00AF ObtainaNewKey .................... 355
00B2 Off.......................................... .345
00D9 Off.......................................... .346
Onl yShiftto' P' when Vehicle is
St ationary ........................................ .357
0024 Parking Brak eInoperative ........ 340
0024Pa rking Brak eSee Opera tor's
Manual .............................................. 341
00AFPlace theK eyintheM arked
Space See Ope rator's Manual .......... 354
0077Please Cor rect Tire Pressure ....354
Ra dar Sensor sDirty See Opera‐
to r's Manual ..................................... 342
00E2 Refill Ad ditiv eEmer gency
Op.: XXX mphS ee Operator's Man‐
ual ....................................................3 52
00E2 Refill Ad ditiv eSee Operator's
Manual .............................................. 351
00E2 Refill Ad ditiv eStartsu ntil
Emerg. Op. :XXX See Operator's
Manual .............................................. 351
Re generation no tpossible ................ 351
009E Replace Air Filter .....................3 48
00AFRe placeKeyB atte ry ................. 354
Re versing No tPossible Service
Re quired .......................................... .356
003D See Operator's Manual ........... 350
Service Required Do No tShift
Gear sVisit Dealer ........................... .357
Shif tto' P' or 'N' toStartE ngine ...... 356
SO SN OTREADY .............................. 342
0075 SRS Malfunction Service
Re quired .......................................... .340
00CC Steering Malfunction
Incre ased Ph ysical Ef fort See
Ope rator's Manual ........................... 356
00CC Steering Malfunction Stop
Immediatel ySee Operator's Man‐
ual ....................................................3 56 Index
375
St
ep No tExtended Se eOperator's
Manua lorstepn otextende dm al‐
function ............................................ 358
003DSt opVehicle Lea veEngine
Ru nning ............................................ 349
003D Stop Vehicle See Operator's
Manual ............................................. 350
0049Switc hOffLights ......................3 58
0049Switc hOnHeadlamps .............. 358
Ti re Press. Monitor Cur rently
Un available ...................................... .353
0077Ti rePress. Sen. Missing ........... 353
Ti re Pressur eMonitor Inoperative ....354
Ti re Pressur eMonitor Inoperative
No Wheel Sensors ............................3 52
To Engag eTransmiss .Position R
Fir stDep ress theB rake .................... 356
Tr af ficS ign Assi stCamer aView
Re stricted See Ope rator's Manual ... 346
Tr af ficS ign Assi stCur rently
Un available See Operator' sManual
.......................................................... 346
Tr af ficS ign Assi stInoperative .......... 346
Tr ansmission Malfunction Stop ........ 357
Ve hicle locating has been activa‐
te d. De tails: see manual or associ‐
ated mobile app. or vehicle locat‐
ing activated –see manual or
mobile app. ...................................... 357
0072Ve hicle Operational Switch
th eI gnition Of fBefor eExiting ..........3 57
0077 Warning Tire Malfunction ......... 353
Displa yrang e(trip menu) .................... 17 0
Displa ytotal di stance (trip menu) ......17 0
Distance cont rol
see ActiveD ista nce Assi stDISTRONIC
Di stance recorder
see Trip dis tance
DI STRO NIC
see ActiveD ista nce Assi stDISTRONIC
Door Locking (emergency key) .................... 46
Un lockin g(emer gency key) ................ 46
Door cont rolp anel ................................ .14DO
T,Tire Identification Number
(TIN) ....................................................... 306
Drinkin gand driving ............................ 106
Driv eAwayA ssist .................................1 56
Driver's seat see Seats
Driving characteristics (unusual) ....... 294
Driving instructions Foreign trip (information) ................ .108
Driving light see Automatic driving lights
Drivin gnotes
Tr anspor tbyrail .............................. .109
Driving Saf etyS ystem
AB S(Anti-loc kBrakin gS ystem) ........ 13 8
ASR (acceleration ski dcontrol )........ 13 8
BA S(Brak eAssistSystem) ............... 13 8
EBD (electroni cbrake forc ed istri‐
bution) ..............................................1 40
ESP ®
Crosswind Assis t..................... 13 9
ESP ®
traile rstabilizatio n................. .140
Overvie w.......................................... 13 8
Ra dar sensor s................................... 137
Re sponsibility ................................... 137
Drivin gsafet ys ystem
see ActiveB rake Assi st
see ESP ®
(Electronic Stabilit yProgram)
Driving sy stem
see 360° Camera
see ActiveD ista nce Assi stDISTRONIC
see ActiveL aneK eeping Assist
see ATTENTION ASSIST
see Blind Spo tAssist
see Cruise control
see HOLD function
see Lane Keeping Assist
see Parking Assis tPARKTRONIC
se eR ear vie wcamera
see Traf ficS ign Assi st
Drivin gtips
Brak esubjec ttoload ...................... .109
Braking ............................................. 109
Breaking-i nnotes ............................. 106
Downhil lgradien t............................. 109
Drinking and driving ......................... 106
Driving ab road (symm etrical low
beam) ................................................. 80
Driving in winter ................................ 111
Driving off-roa d................................. 111
Driving on flooded roads .................. .110
Driving on wetroads .........................1 10376
Index