
Display messages
Possible causes/consequences and M
MSolutions
Ý Please wait 48 V battery
charging *T
he 48 V battery is dischar ged. You ha veswitched on the ignition while the12 V battery was being charge d with a
suitable charge r or while ano ther vehicle was pr oviding starting assis tance.
The discha rged 48 V battery is charge d automatically via thevo ltage con verter. Af ter a few minutes, theMotor can
be started again display message will be shown on the multifunction displa y. #
Start the engine. #
Drive theve hicle for a while tocharge the12 V battery and the 48 V battery af ter disconnecting thech arger
from theve hicle.
If th eMotor can be started again display message does not appear af ter a few minutes: #
Tryto start the engine again. #
Ifth e engine does not start, consult a qualified specialist workshop.
Cannot start engine See
Owner's Manual *T
hecharge leve l of the 48 V battery is too lo w.You can no lon gerst art the engine. #
Switch off electrical consumers that are not required. #
Connect a suitable charge r appro vedfo r Mercedes-Benz with suf ficient charge output tothe jump-s tart connec‐
tion point of the12 V battery (/ page 326).
The 48 V battery is charge d via thevo ltage con verter in theve hicle.
Motor can be started again *T
he 48 V battery has been charge d automatically via thevo ltage con verter. #
Start the engine and drive theve hicle for a while tocharge the12 V battery and the 48 V batter y. Displ
aymessa ges and warning/indicator lamps 413

Display messages
Possible causes/consequences and M
MSolutions
Ø Top up AdBlue Emergency
op. in XXX miles See Own-
er's Manual *
The low AdBlue ®
leve l will lead tolimited per form ance af terth ere maining dis tance displ ayed has been co vered. #
Top up AdBlue ®
immediately (/ page 177).
Ø
XX,X l Top up AdBlue Emer.
op.: max. XXX km/h Start
not poss. in XXX km *
The low AdBlue ®
leve l will lead tolimited per form ance from the speed displa yed.
Af terth ere maining dis tance displ ayed has been co vered, it will no longer be possible tostart the engine. #
Add at least the amount of AdBlue ®
displ ayed (/ page177).
Ø XX,X l Top up AdBlue
Switch on ignition, wait 60
sec. or eng. start not poss. *
The AdBlue ®
tank is em pty. Yo u can no lon gerst art the engine. #
Add at least the amount of AdBlue ®
displ ayed (/ page177). #
Switch on the ignition and waitfor appro ximately 60 seconds. #
Start the engine. Display messages and
warning/indicator lamps 419

Display messages
Possible causes/consequences and M
MSolutions
5 Engine oil level cannot be
measured *T
he electrical connection tothe oil le vel sensor has been inter rupte d or the oil le vel sensor is faulty. #
Consult a qualified specialist workshop. Wa
rning and indicator lamps Overview of indicator and
warning lamps Some sy
stems will per form a self-test when the
ignition is switched on. Some indicator and
wa rning lamps may briefly light up or flash. This
behaviour is non-critical. These indicator and
wa rning lamps indicate a malfunction only if they
light up or flash af terth e engine has been star‐
te d or during a journe y. Instrument display Depending on
the display setting, the positions
of the indicator lamps on the instrument display
may dif fer from theex ample shown. Indicator and
warning lamps:
6 Re
stra int sy stem (/ page 426)
ü Seat belt (/
page 426)
ï Trailer hit ch (/page 427)
Ù Powe rst eering (/ page 427)
ÿ Coolanttemp erature (/ page 428)
; Engine diagnostics (/
page 428)
% Preglow
# Elect
rical fault (/ page 428)
8 Re
ser vefuel with fuel filler flap loca‐
tion indicator (/ page 428)
! Elect
ric pa rking brake (red)
(/ page 431) 424
Display messages and warning/indicator lamps

:
Intellige nt Light Sy stem inoper‐
ative ..................................................... 376
Á Key not de tected (red displ ay
messa ge).............................................3 74
Á Key not de tected (white displ ay
messa ge).............................................3 74
: Left dipped beam (e xamp le) ...... .375
6 Left windowbag malfunction
Consult workshop (e xample).............. .370
¢ Lowe ring .................................... 399
: Malfunction See Owner's Man‐
ual ....................................................... 375
ð Maximum speed exceeded ......... 396
Ø ................................................... 419
ç Off..............................................3 95
ë Off.............................................. 398
ï Operation only possible in
transmission position P .......................379
! Parking brake See Owner's
Manual ................................................ 389 É
Please reduce speed .................. 400
Ý Please wait 48 V battery charg‐
ing ........................................................ 413
_ Rear left seat backrest not
loc ked (Example) .................................3 83
h Rectify tyre pressure ...................41 5
Ø Refill Ad Blue See Owne r’s
Manual .................................................4 18
! Release parking brake ................ 392
¸ Replace air cleaner .....................386
À Replace key See Owner's Man‐
ual ...................................................... .373
Á Replace key ................................ 373
8 Reser vefuel le vel...................... .386
6 Restra int sys. malfunction Con‐
sult workshop ...................................... 370
# See Owner's Manual ...................411
Ù Steering malfunction Incre ased
ph ysical ef fort See Owner's Manual .... 381Ù
Steering malfunction Stop
immediately See Owner's Manual .......382
# Stop vehicle Lea veengine run‐
ning ...................................................... 412
# Stop vehicle See Owner's Man‐
ual ........................................................ 412
É Stop vehicle Vehicle too low .......3 99
ç suspended ................................. 395
: Switch off lights .......................... 376
: Switch on headlamps .................376
Ø Top up AdBlue Emergency op.
in XXX miles See Owner's Manual .......419
+ Top up coolant See Owner ’s
Manual ................................................ 384
¥ Top up washer fluid .................... 384
ï Trailer coupling extending… ........379
! Turn on the ignition torelease
th e parking brake ................................ 393
d Vehicle is operational Switch
off ignition before exiting .................... 379448
Index

É
Vehicle rising Please wait.......... .400
É Vehicle rising .............................. 400
h Warning tyre defect ....................416
h Wheel sensor(s) missing .............414
Ø XX,X l Top up AdBlue Switch on
ignition, wait 60 sec. or eng. start
not poss. .............................................. 419
Ac tive Blind Spot Assi stcur rently
una vailable See Owner's Manual .........402
Ac tive Blind Spot Assi stinope rative .... 403
Ac tive Blind Spot Assi stnot available
when towing a trailer See Owner's
Manual ................................................ 403
Ac tive bonnet malfunction See Own‐
er's Manual ......................................... 382
Ac tive Brake Assi stFunctions cur‐
re ntly limited See Owner's Manual ...... 409
Ac tive Brake Assi stFunctions limited
See Owner's Manual ............................41 0Ac
tive Dis tance Assi stavailable
again .................................................. .396
Ac tive Dis tance Assi stcur rently
una vailable See Owner's Manual .........395
Ac tive Dis tance Assi stinope rative ...... 396
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual .........403
Ac tive Lane Keeping Assist inopera‐
tive ...................................................... 403
Ac tive Parking Assist and
PA RKTRONIC inoperati veSee Own‐
er's Manual ......................................... 400
Ac tive Steering Assist cur rently
una vailable due tomultiple emer‐
ge ncy stops ......................................... 397
Ac tive Steering Assist cur rently
una vailable See Owner's Manual .........396
Ac tive Steering Assist inoperative .......397
Ac tive Stop-and-Go Assist cur rently
una vailable see Owner's Manual .........397 Ac
tive Stop-and-Go Assist inopera‐
tive See Owner's Manual ..................... 398
Ad aptive Highbeam Assist cur rently
una vailable See Owner's Manual .........377
Ad aptive Highbeam Assist inopera‐
tive ...................................................... 377
Ad aptive Highbeam Assist Plus cur‐
re ntly una vailable See Owner's Man‐
ual ...................................................... .377
Ad aptive Highbeam Assist Plus inop‐
erative ................................................ .377
App lybrake todeselect Park (P)
position ...............................................3 87
App lybrake toselect D or R ................387
App lybrake toselect R ........................ 387
Au xilia rybattery malfunction .............. 389
Beginning emer gency stop .................. 397
Blind Spot Assist cur rently una vaila‐
ble See Owner's Manual ...................... 402
Blind Spot Assist inope rative ............... 402 Index
449

Switching on/off ................................. 254
Headlamp flashing .................................. 12 8
Headlamps see Automatic driving lights
Heating see Climate control
Help call see Mercedes-Benz emergency call sy stem
High beam Activating/deactivating ...................... .128
Ad aptive Highbeam Assist .................. .131
Ad aptive Highbeam Assist Plus .......... .132
High-pressure cleaner (care) ................. 308
Hill Start Assist ....................................... 209
HOLD function ......................................... 210
Fu nction/no tes .................................... 210
Switching on/off ................................. 210
Home screen (media display) Overview ............................................. 257
Hooking the luggage net .........................116 I
i-Size child seat securing sy stem
Fitting .................................................... 59
i‑Size child seat securing sy stem
Seats suitable for attaching ................... 58
Identification plate Engine ................................................. 353
Vehicle ................................................ 353
Ignition Switching on (S tart/S top button) ........ 154
Ignition key
see Key
Immobiliser ................................................ 93
Implied warranty
Ve hicle ................................................... 31
In-Car Of fice ............................................ .284
Fe atures .............................................. 284
Indicator lamps see Warning/indicator lamps
Individual drive prog ram
Con figuring .......................................... 167
Selecting .............................................. 167Inspection
see AS SYST PLUS
Instrument clus ter
Fu nction/no tes ........................... 248, 24 9
Instrument display Function/no tes ................................... 24 9
Instrument clus ter ................................. 10
Wa rning/indicator lamps .................... .424
Instrument display and on-board
compu ter
Fu nction/no tes ................................... 24 8
Intelligent Light Sy stem
Ac tive headla mps ................................ 12 9
Ad aptive Highbeam Assist .................. .131
Ad aptive Highbeam Assist Plus .......... .132
Ad versewe ather light .......................... 131
City lighting .......................................... 131
Corne ring light ..................................... 12 9
Fo g light (extended range) ................... 13 0
Mo torw ay mode ................................... 13 0
Overview ............................................. 12 9
Switching on/off ................................. 131
Interior lighting ........................................ 13 5
Ambient lighting .................................. 13 5 Index
455

Setting
the map scale
see Map
Shift paddles see Steering wheel gearshift paddles
Shifting gears
Gea rshift recommendation .................. 171
Side airbag .................................................41
Side windo ws............................................. 84
Au tomatic function ................................ 85
Child saf ety lock in there ar .................. .69
Closing .................................................. 84
Closing using theke y ............................ 86
Con venience closing ............................. 86
Co nvenience opening ............................86
Opening .................................................84
Opening with theke y ............................ .86
Problem .................................................87
Ra in-closing feature .............................. .85
Ro ller sunblind ...................................... 92
Sliding sunroof .......................................... 87
Au tomatic features ................................ 90
Closing .................................................. 87
Closing using theke y ............................ 86
Opening ................................................ .87Opening with
theke y ............................ .86
Problem .................................................91
Ra in-closing feature .............................. .90
Smartphone see Smartphone integration
see Telephone
Sma rtphone integ ration ......................... 286
Overview ............................................. 286
Snow chains ............................................ 335
Soc ket (12 V) ............................................ 121
Fr ont centre console ............................ 121
Soc ket (230 V) ......................................... 121
Re ar .................................................... .121
Software update System updates ................................... 266
Sound PRE-SAFE ®
Sound ................................. 49
Wheels and tyres ................................. 335
Sound menu Functions overview .............................. 297
Spare wheel see Emer gency spa rewheel Speed limit
for winter tyres
Setting ................................................. 19 9
St andby mode
Ac tivating/deactivating ...................... .186
Fu nction .............................................. 185
St anding lights ........................................ 12 6
St art-off assi st
see Optimised acceleration
St art/s top button
Pa rking theve hicle .............................. 17 9
St arting theve hicle ............................. 15 5
Switching on the po wer supply or
ignition ................................................ 154
St art/s top function
see ECO start/ stop function
St arter battery
Charging (Remo teOnline) .................... 157
St arting assi stance
see Jump -sta rt connection
St arting the engine
see Vehicle
St arting-o ffaid
see Hill Start Assist Index
465