2020 MERCEDES-BENZ GLS SUV ignition

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 384).
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 481

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 215).
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 (/ page215).
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 (/ page215). #
Switch on the ignition and waitfor appro ximately 60 seconds. #
Start the engine. 486
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
5 Engine oil pressure Stop
Switch off engine *T
he oil pressure is too lo w.
* NO
TEEngine dama gecaused bydriving with insuf ficient oil pressure #
Avoid driving with insuf ficient oil pressure. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Consult a qualified specialist workshop.
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.490
Display messages and warning/indicator lamps

:
Left dipped beam (e xamp le)........ .439
6 Left wind owbag malfunction
Consult workshop (e xample)................ .434
 Lowe ring....................................... 472
: Malfunction See Owner's Man‐
ual......................................................... 439
î Max. speed 40 km/h...................4 64
ð Maximum speed exceeded ........... 463
î Notpossible in cur rent drive
program ................................................ 464
Ø ..................................................... 486
ç Off................................................ 462
ë Off................................................ 460
ï Operation only possible in
transmission position P .........................443
! Parking brake See Owner's
Manual .................................................. 455
Á Please reduce speed .................... 473
Ý Please wait 48 V battery charg‐
ing ........................................................ .481 h
Rectify tyre pressure.................... 483
Ø Refill Ad Blue See Owne r’s
Manual.................................................. 485
! Release parking brake .................. 458
¸ Replace air cleaner ...................... 452
Á Replace key.................................. 437
8 Reser vefuel le vel......................... 452
6 Restra int sys. malfunction Con‐
sult workshop........................................ 434
# See Owner's Manual....................4 79
y Siderunning board not exten‐
ded........................................................ 445
Ù Steering malfunction Incre ased
ph ysical ef fort See Owner's Manual ......446
Ù Steering malfunction Stop
immediately See Owner's Manual .........446
# Stop vehicle Lea veengine run‐
ning ....................................................... 480
# Stop vehicle See Owner's Man‐
ual......................................................... 480 ç
suspended................................... 462
: Switch off lights...........................4 40
: Switch on headla mps................... 440
Ø Top up AdBlue Emergency op.
in XXX miles See Owner's Manual......... 486
+ Top up coolant See Owner ’s
Manual.................................................. 450
¥ Top up washer fluid ...................... 450
ï Trailer coupling extending…......... 443
! Turn on the ignition torelease
th e parking brake..................................4 59
d Vehicle is operational Switch
off ignition before exiting..................... .443
Á Vehicle rising Please wait............ .472
Á Vehicle rising................................4 72
h Warning tyre defect..................... .484
h Wheel sensor(s) missing .............. 482
Ø XX,X l Top up AdBlue Switch on
ignition, wait 60 sec. or eng. start
not poss................................................ 486 Index
515

Identification pla
te
Engine.................................................... 41 5
ve hicle................................................... 41 5
Ignition Swit ching on (S tart/S top button).......... 187
Ignition key
see Key
Immobiliser ................................................ 102
Implied warranty
Ve hicle.................................................... 34
In-Car Of fice
Fe atures................................................ 339
Indicator lamps see Warning/indicator lamps
Individual drive prog ram
Con figuring........................................... 203
Selecting............................................... 203
Inspection see ASS YST PLUS
Instrument clus ter
Fu nction/no tes............................. 304, 305
In stru ment display
Fu nction/no tes..................................... 305 Instrument clu
ster................................... 10
Wa rning/indicator lamps...................... 490
Instrument display and on-boa rd
compu ter
Fu nction/no tes..................................... 304
In te lligent Light Sy stem
Ac tive headla mps.................................. 15 9
Ad aptive Highbeam Assist Plus.............. 161
Corne ring light....................................... 15 9
Fo g light (extended range)..................... 16 0
Mo torw ay mode..................................... 16 0
Overview............................................... 15 9
Switching on/of f.................................... 161
Interior lighting Adjusting............................................... 16 3
Ambient lighting.................................... 16 4
Re ading lam p......................................... 16 3
Switch-off del aytime............................. 16 4
Interior pr otection
Fu nction................................................ 103
Priming/deactivating.............................1 04
Internet radio
see TuneIn Ionisation
Activating/deactivating (MBUX mul‐
timedia sy stem).....................................1 78
iPhone ®
see Smartphone integ ration
ISOFIX child seat securing sy stem
Fitting..................................................... .64
Seats suitable for attaching..................... 62 J
Jack Declaration of conformity........................ 30
Storage location.................................... 401
Jump-start connection General no tes........................................ 382 K
Key Acoustic locking verification signal......... 79
Battery.................................................... 80
Emer gency key........................................ 79
Energy consum ption................................ 79
Fe atures................................................. .78
Ke yring attachment................................ 79 Index
523

Snow
chains.............................................. 393
Soc ket (12 V)
Using..................................................... 14 8
Soc ket (230 V)
Re ar...................................................... .148
Software update System updates.....................................3 21
Sound PRE-SAFE ®
Sound................................... 53
Wheels and tyres...................................3 93
Sound menu Functions overview...............................3 55
Spare wheel see Collapsible spa rewheel
see Emer gency spa rewheel
Specific absor ption rate ............................. 26
Speed Limit Assi st
Fu nction/no tes..................................... 253
Setting................................................... 254
Sy stem limitations................................. 253
Speed limit for winter tyres
Setting................................................... 236 St
andby mode
Ac tivating/deactivating......................... 224
Fu nction................................................ 223
St anding lights.......................................... 15 6
St art-off assi st
see Optimised acceleration
St art/s top button
Pa rking theve hicle................................2 17
St arting theve hicle...............................1 88
Switching on the po wer supply or
ignition................................................. .187
St art/s top function
see ECO start/ stop function
St arter battery
Charging (Remo teOnline)..................... 189
St arting assi stance
see Jump -sta rt connection
St arting the engine
see Vehicle
St arting-o ffaid
see Hill Start Assist
St ationary heater/ventilation
Displ ays (remo tecontrol)...................... 182Problems (remo
tecontrol)..................... 183
Re placing the battery (remo tecon‐
trol)....................................................... 182
Setting (MBUX multimedia sy stem)....... 181
Setting (remo tecontrol)......................... 181
Switching on/off (control panel )........... 180
ST EER CONT ROL
Fu nction/no tes..................................... 230
Ste ering wheel
Ad justing (electrically)........................... 12 5
Ad justing (manually). ............................. 124
Buttons.................................................. 306
Ca re...................................................... 370
St eering wheel heater............................1 26
Ste ering wheel gearshift paddles............ 207
Ste ering wheel heater
Swit ching on/of f................................... 12 6
Step see Running boards
St ow age areas
see Loading
see Stow age space 534
Index