
Displa
ymessages
Possible causes/consequences and M
MSolutions
Active Lane Keeping Assist
Camera view restricted
See Owner's Manual *
Ve hicles without Activ eS teering Assis t:thec amer aviewisr estricted.
Po ssible causes:
R dirtont he windscreen in thec amera's field of vision
R heavy rain, sno worfog
Driv ings ystems and driving saf etys yst ems ma ybemalfunctioning or temp orarily una vailable.
Onc ethe cause of thep roblem is no longer present ,driving sy stems and driving saf etys yst ems ar eavailable again.
If th ed ispla ymessag edoes no tdisappear: #
Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions. #
Clea nthe windscreen.
Blind Spot Assist currently
unavailabl eSee Owner's
Manual *B
lind Spo tAssis tist emporaril yunavailable.
The sy stem border shave been reached (→ page248). #
Driv eon.
Once thec ause of thep roblem is no longer present ,the sy stem will be available again.
or #
Ifth ed ispla ymessag edoes no tdisappear ,stopt he vehicle while paying attention toroad and traf ficc onditions
and restar tt he engine. #
If necessar y,clean ther ear bumper .Ifthe bumper is extreme lydirty ,the sensor sinthe bumper ma ybemal‐
functioning. Displa
ymessages and warning/indicator lamps 487

Displa
ymessages
Possible causes/consequences and M
MSolutions
h Warning tyre defect *T
he tyr epressur eino ne or mor etyres has dropped suddenly .The wheel position is displa yed. &
WARNING Risk of an accident from driving wi thaflat tyre
Flat tyres ar edangerous in thef ollowing ways:
R The tyres can overheat and cause afire.
R ‑The driving characteristics, steering and braking ma ybegreatl yimp aired.
Yo uc ouldthen lose control of thev ehicle. #
Do no tdrive wit haf lat tyre. #
Obser vethen otes on flat tyres. No
tesonf lat tyres (→ page409). #
Stop thev ehicle, paying attention toroad and traf ficc onditions. #
Chec kthe tyres.
Tyre press. monitor cur-
rently unavailable *N
osignals can be recei vedf romt he tyr epressur esensor sdue tostro ngradio signal source inter fere nce. The tyre
pressur emonitoring sy stem is temp oraril yunavailable. #
Driv eon.
The tyr epressur emonitoring sy stem restarts automaticall yassoon as thec ause has been rectified. 504
Displa ymessages and warning/indicator lamps

Displa
ymessages
Possible causes/consequences and M
MSolutions
h Wheel sensor(s )missing *T
her eisnos ignal from thet yrep ressur esensor of one or mor ewheels. The pressur eofthe affected tyr eisnot
displ ayed. #
Have thef aulty tyr epressur esensor replaced at aqualified specialis tworks hop.
Tyre press. monitor inoper-
ative No wheel sensors *T
he wheels fitted do no thave suitable tyr epressur esensors. The tyr epressur emonitoring sy stem is deactivated. #
Fit wheels wit hsuitable tyr epressur esensors.
Tyre press. monitor inoper-
ative *T
he tyr epressur emonitoring sy stem is faulty. &
WARNING Thereisar isk of an accident if thet yrep ressur emonitoring sy stem is malfunctioning
If th et yrep ressur emonitoring sy stem is malfunctioning, it is no table toissue awarning if ther eisp ressure
loss in one or mor eofthe tyres.
Ty resw ithi nsuf ficient tyr epressur emay,for example, af fect thev ehicle's handling characteristics, steering and
braking. ‑ #
Have thet yrep ressur emonitoring sy stem checkedataq ualified specialis tworks hop. #
Consult aqualified specialis tworks hop.
Tyre(s) overheated *A
tlea st one tyre is overheating. The af fected tyres ar edispl ay ed in red. At temp eratures close tothel imit value,
th et yres ar edispla yediny ellow. #
Driv emores lowl y. Displ
aymessa gesa nd warning/indicator lamps 505

Displa
ymessages
Possible causes/consequences and M
MSolutions
b Malfunction See Owner's
Manual *T
heexterior lighting is faulty. #
Consult aqualified specialis tworks hop.
Ve hicles with atrailerh itch:afuse ma yhave blown. #
Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions. #
Chec kthe fuses and replace them if necessar y.
b AUTO lights inoperative *T
he light sensor is faulty. #
Consult aqualified specialis tworks hop.
b Switch off lights *Y
ou ar eleaving thev ehicle and thel ights ar estills witched on. #
Turn thel ight switc htotheà position.
b Switch on headlamps *Y
ou ar edriving without dipped-beam headlamps. #
Turn thel ight switc htotheL orà position.
Adaptive Highbeam Assist
Plus inoperative *A
daptiv eHighbeam Assis tPlus is faulty. #
Consult aqualified specialis tworks hop. 520
Displa ymessages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
? Coolant warning lamp The
redc oolant warning lam pislit while thee ngine is running.
Po ssible causes:
R The temp eratur esensor is malfunctioning
R Coolant le veltoo low
R The air suppl ytotheradiator is obstructed
R The radiator fani sfaulty
If th er eisana dditional warning tone, thec oolant temp eratur ehasexceeded 120° C. &
WARNING Danger of bu rnsw hen opening theb onnet
If yo uo pen thee ngine bonn etwhen thee ngine has overheated or during afireint he engine compartment, you
could come int ocontact wi thhotg ases or other escaping operating fluids. #
Befor eopening theb onnet ,allowt he engine tocool down. #
Inthee vent of afireint he engine compartment, keep thee ngine bonn etclosed and cal lthe fire service. #
Stop thev ehicle immediately ,paying attention toroad and traf ficc onditions ,and switc hoffthee ngine. Do no tcon‐
tinue driving under an ycircums tances. #
Obser vethem essages in them ultifunction displa y.
If th ec oolant temp eratur edispla yisatt he lowerend of thet emperatur escale: #
Consult aqualified specialis tworks hop. 536
Displa ymessages and warning/indicator lamps

Ad
justing thes ound focus ................... 390
Ad justing treble ,mid and bass set‐
ting s.................................................... 389
Au tomatic volume adjustment ............ .389
Calling up thes ound menu .................. 389
Information .......................................... 389
Switching thes urround soun don/off
............................................................ .390
Business telephony
Setting up an Interne tconnection ...... .358
Buttons Steering wheel .................................... 262 C
CA module (TV) ........................................ 388
Calling up amenu ................................ 388
Inse rting .............................................. 388
Call list Makin gacall ...................................... .345
Options in thec all lis t.......................... 345
Overvie w............................................. 345
Calling up thes ound menu
Burmes ter®
sur round soun dsystem ... 389 Calls
..........................................................3 41
Ac cepting ............................................. 341
Ac tivating functions du ring acall. ....... 342
Call swiths everal participant s............. 342
Declin ing. ............................................. 341
Ending acall ........................................ 341
Incoming call during an existin gcall .... 342
Makin g................................................. 341
Vi at he overhead control panel
(Mercedes me connect )......................3 52
Camera see 360° Camera
see Reversing camera
Car key
see Key
Car wash
see Care
Car wash (care) ....................................... 399
Care ..........................................................4 04
AIRPANEL ............................................ 402
Carw ash ............................................. 399
Carpe t.................................................4 04
Displ ay................................................ 404
EAS Y-PA CK boo tbox ...........................4 04Exhaus
tpipes ...................................... 402
Exterior lighting ................................... 402
High-p ressur ecleaner .........................3 99
Matt finis h. .......................................... 401
Pa int wo rk ............................................ 401
Plastic trim .......................................... 404
Re alwo od/trim elements ...................4 04
Re versing camera/360 °Camer a....... .4 02
Ro of lining ...........................................4 04
Seat bel t.............................................. 404
Seat co ver. .......................................... 404
Sensor s............................................... 402
Tr ailer towh itch ................................... 402
Wa shing byhand ................................. 400
Wheels/rims ....................................... 402
Wi ndo ws .............................................. 402
Wi per blades .......................................4 02
Carpe t(Ca re) .......................................... .404
Changing bulbs ........................................ 14 4
Dippe dbeam. ...................................... 14 5
Fitting/removing co ver(front wheel
ar ch ). .................................................. .145
Main beam .......................................... 14 5
No tes. .................................................. 14 4
Overvie w............................................. 14 4 Index
545

÷inope
rativ eS ee Owner' sMan‐
ual ....................................................... 469
Tin operati veSee Owner's Man‐
ual ....................................................... 470
G Inoperative .................................. 475
b Intellige nt Light Sy stem inoper‐
ative ..................................................... 519
 Keyn otdetected (whit edis‐
pl ay messa ge)...................................... 507
ÂKe ynotdetected (red displ ay
messa ge).............................................5 07
b Leftdipped beam (e xamp le) ........ 519
6 Leftwindowbagm alfunction
Consul tworks hop (e xample).............. .480
Le tfresh airi ntot he vehicle interior!
Air conditionin gmalf.Visit workshop ...514
Limiter inoperative .............................. 492
Limiter passive .................................... 491
 Lowe ring .................................... 483 bMalfunctio
nSee Owner' sMan‐
ual ....................................................... 520
ðMaximu mspeed exceeded ..........4 92
Np ermanently activ eRiskofv ehicle
ro lling .................................................. .511
No tind rive prog ram" All-Ter rain" ........ 490
ëOff .............................................. .490
Onl yselect Park (P) when vehicle is
st ationary ............................................ .511
j Operation only possible in
transmission position N .......................513
j Operation only possible in
transmission position P ........................513
! Parking brak eSee Owner's
Manual ................................................ .472
 Place thek eyinthem arked
space See Owner's Manual ................. 508
Please reduce speed ...........................4 85
PRE-SAFE impulse side inope rative
See Owner' sManual ............................ 478PRE-SAFE inoperativ
eSee Owner's
Manual .................................................4 78
Ra dar sensor sdirty See Owner's
Manual .........................................4 76,477
_ Rear lef tseat backres tnot
loc ked( example) .................................. 51 8
h Rectify tyr epressure ................... 503
ØRe fill Ad Blu eEng. star tn otpos‐
sible .................................................... 500
ØRe fill Ad Blu eNos tart in XXX
km ...................................................... .500
ØRe fill Ad Blu eS ee Owne r’sM an‐
ual .......................................................4 99
!Re lease parkin gbrake ................ .471
¸ Replace air cleaner .....................499
,Re placekeyS eeOwner' sMan‐
ual ...................................................... .506
ÂRe placekey................................ .506
8Re servefuel le vel........................ 499 Index
551

6Re
stra int sys. malfunction Con‐
sult workshop ...................................... 479
Re versing no tposs. Consult work‐
shop ..................................................... 512
Rises or lo wersmax. speed 35
km/h .................................................. .485
Risk of vehicle rolling Driver door
open and transmissio nnotin P ............ 51 0
# See Owner's Manual ................... 494
Spee dlim it (winter tyres) XXX km/h ... 492
#St arte ngine See Owner' sMan‐
ual ...................................................... .494
Ð Steering malfunction Drive
carefull yVisit workshop ....................... 514
Ð Steering malfunction Incre ased
ph ysical ef fort See Owner's Manual ....51 5
Ð Steering malfunction Stop
immediatel ySee Owner's Manual ........51 5
St op vehicle Lea veengine running
Wa itTransmission cooling ....................512#
Stop vehicle Lea veengine run‐
ning ..................................................... 495
#St opvehicle See Owner's Man‐
ual .......................................................4 95
ÁSt opvehicle Vehicle tool ow ........ 484
bSwitc hofflights .......................... 520
bSwitc honheadlamps .................. 520
To shif tout of PorN,d epress brake
and star te ngine .................................. .510
To pupc oolant See Owner ’sManual ... 493
¥To pupwasherfluid ...................... 51 8
Tr af ficS ign Assi stCamer aview
re stricted See Owner's Manual ........... 489
Tr af ficS ign Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 489
Tr af ficS ign Assi stinope rative ............. 489
jTr ailer coupling extending… ......... 508
Tr ansmission Malfunction Stop ............ 512
! Turn on thei gnition torelease
th ep arking brake ................................ 470Ty
re press. monitor cur rentl yu navail‐
able .................................................... .504
Ty re press. monitor inoperative ...........505
Ty re press. monitor inoperativ eNo
wheel sensors .................................... .505
Ty re pressur eChec ktyres ...................5 02
Ty re(s) ove rheated ...............................5 05
Ty re(s) ove rheated Reduce speed ........ 506
dVe hicle is operational Switch
of ft he ignition befor eexiting ............... 511
Á Vehicle rising Please wait............ 484
ÁVe hiclerising ...............................4 83
hWa rning tyr edefect .................... .504
hWheel sensor(s) missing ............. 505
Wi thout changing gear,c onsult work‐
shop ..................................................... 511
Displa yonthe windsc reen
see Head-up display
Distance control see ActiveD ista nce Assi stDISTRONIC 552
Index