2018 MERCEDES-BENZ G-CLASS SUV engine

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
? Coolant warning lamp The
red coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R The coolant le vel is too low
R The air supply tothera diator is obstructed
R The radiator fan is faulty
If th ere is an additional warning tone, the coolant temp erature has exceeded 120 °C. &
WARNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. Do not con‐
tinue driving under any circums tances. #
Obser vethe messages on the multifunction displa y.
If th e coolant temp erature display is at the lo wer end of thete mp erature scale: #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 501

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
or #
Exit theve hicle and keep a safe dis tance from it until the engine has cooled down. #
Check the coolant le vel (/ page 379). #
Makesure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that the
coolant temp erature display remains below 120 °C. Ty
res Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
h Ty re pressure monitoring
sy stem warning lamp lights
up The
yellow tyre pressure monitoring sy stem warning lamp (pressure loss/malfunction) is lit.
The tyre pressure monitoring sy stem has de tected tyre pressure loss in at least one of the tyres. &
WARNING Risk of an accident due toinsuf ficient tyre pressure
Ty res with insuf ficient tyre pressure pose thefo llowing risks:
R The tyres may bur st, especially as the load and vehicle speed increase.
R The tyres may wearexc essively and/or une venly, which may greatly impair tyre traction.
R ‑ The driving characteristics, steering and braking may be greatly impaired. 502
Display messages and warning/indicator lamps

Ve
hicle Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
Ð Po we rst eering sy stem
wa rning lamp The
red po werst eering sy stem warning lamp is lit while the engine is running.
The po werst eering assis tance or thesteering itself is malfunctioning. &
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf ety is jeopardised. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do
not continue driving under any circums tances. #
Consult a qualified specialist workshop. #
Obser vethe messages on the multifunction displa y.
ï
Tr ailer tow hit chwarning
lamp The
red trailer tow hit chwarning lamp is on.
There is a fault with the trailer hitch. #
Have the trailer hitch checked at a qualified specialist workshop. 504
Display messages and warning/indicator lamps

Ac
tive Se rvice Sy stem PLUS
see AS SYST PLUS
Ad aptive brake lights ..............................186
Ad aptive cruise control
see Active Dis tance Assi stDISTRONIC
Ad aptive functions, MULTIBEAM LED
see Intelligent Light Sy stem
Ad aptive Highbeam Assist Plus
Fu nction ............................................... 121
Switching on/off ................................. 12 3
Ad Blue ®
.................................................... 433
Ad ditives .............................................4 33
Capacity .............................................. 434
Fill le vel .............................................. .230
No tes ................................................... 16 6
Purity ................................................... 433
Ra nge ................................................. .230
To pping up ...........................................1 66
Ad ditional value range
Setting display content ........................ 228
Ad diti ves.................................................. 434
Ad Blue ®
............................................... 433
Engine oil ............................................ 434 Fu
el ..................................................... 431
Ad diti ves (AdBlue ®
)
see AdBlue ®
Ad diti ves (engine oil)
see Additives
Ad diti ves (fuel)
see Fuel
Ad dress book
see Contacts
Ad justable damping ................................ 19 6
Ad justing the balance/ fader
Burmes ter®
sur round sound sy stem ... 360
Ad justing the sound focus
Burmes ter®
sur round sound sy stem ... 360
Ad justing treble, mid- range and bass
settings
Burmes ter®
sur round sound sy stem ... 359
Ad versewe ather light ............................ .121
Af ter-sales service centre
see ASS YST PLUS
Air inlet see Air-water duct Air pressure
see Tyre pressure
Air vents ................................................... 14 0
Ad justing (front) .................................. 14 0
Ad justing (rear) .................................... 14 0
Air vents
see Air vents
Ai r-re circulation mode ............................ 13 4
Air-water duct .......................................... 381
Ke eping free ........................................3 81
Airbag ........................................................ .36
Ac tivation .............................................. 30
Fr ont airbag (driver, front passenger) ....36
Ins tallation locations ............................ .36
Knee airbag ........................................... 36
Overview ............................................... 36
PA SSENGER AIR BAG indicator lamp .... .40
Pr otection ..............................................37
Re duced pr otection ...............................38
Side impact airbag ................................ 36
Wi ndow airbag ....................................... 36
Alarm see Panic alarm 506
Index

Media sear
ch....................................... 340
Overview ............................................. 336
Pa use and playback function .............. .337
Selecting a track ................................. 337
Selecting pl ayback options .................. 337
Switching on media mode ...................3 35
Tr ack list .............................................. 337
Au thorised workshop
see Qualified specialist workshop
Au tomatic distance control
see Active Dis tance Assi stDISTRONIC
Au tomatic driving lights ..........................11 8
Au tomatic engine start (ECO start/
sto p function) .......................................... 14 8
Au tomatic engine stop (ECO start/
sto p function) .......................................... 14 8
Au tomatic front passen ger front air‐
bag deacti vation sy stem
see Automatic front passenger front
airbag shutoff Au
tomatic front passen ger front air‐
bag shu toff .......................................... 39, 40
Fu nction of the automatic front
passenger front airbag deactivation
sy stem ................................................... 39
PA SSENGER AIR BAG indicator lamp .... .40
Au tomatic lateral support adjustment
Setting ................................................... 92
Au tomatic mir rorfo lding function
Ac tivating/deactivating ...................... .130
Au tomatic transmission
DIRECT SELECT le ver ........................... 15 3
Drive program display .......................... 151
Drive programs .................................... 15 0
DY NA MIC SELECT switch .................... 15 0
Engaging drive position ....................... 15 5
Engaging neutral .................................. 154
Engaging pa rkposition ........................ 154
Engaging reve rsege ar ........................ .154
Kickdown ............................................. 15 6
Manual gear changing ........................ .155
St eering wheel gearshift paddles ........ 15 5
Tr ansmission position display .............. 15 3
Tr ansmission positions ........................ 15 3Au
tomatic transmission (problem)
see Transmission (problem)
Axle load Perm issible .......................................... 427
Tr ailer operation .................................. 441 B
Bag hook .................................................. 107
BA S (Brake Assist Sy stem) .................... .179
Battery Key ........................................................ 73
Re mo tecontrol (s tationary heater) ...... 13 8
Battery see Battery (vehicle)
Battery (vehicle) ...................................... 400
Charging .............................................. 399
No tes .................................................. 396
No tes (s tarting assis tance and
ch arging) ............................................ .397
Re placing ............................................ 400
St arting assis tance .............................. 399
Belt see Seat belt 508
Index

Compu
ter
see On-board computer
Connection status
Displ aying ............................................ 329
Overview ............................................ .329
Connectivity Setting up a hotspot via business tel‐
ephony ................................................ 263
Swit ching transmission of theve hicle
position on/off .................................... 263
Contacts ................................................... 308
Calling up ............................................ 309
Deleting ............................................... 310
Downloading (from mobile phone) ...... 309
Impo rting ............................................ .310
Importing (o verview) .......................... .309
Information .......................................... 308
Making a call ....................................... 310
Na me form at ...................................... .309
Options ................................................ 310
St oring .................................................3 10
Controller Operating ............................................ 254
Con venience closing ................................. 79 Con
venience opening ................................ 79
Coolant (engine) Check le vel .......................................... 379
No tes .................................................. 435
Copyright ................................................... 28
Cross Traf fic Alert .................................... 213
Cruise control .......................................... 186
Ac tivating ............................................ 188
Buttons ................................................ 188
Calling up a speed .............................. .188
Deactivating ........................................ 188
Fu nction .............................................. 186
Re quirements ...................................... 188
Selecting ............................................. 188
Setting a speed ................................... 188
St oring a speed ................................... 188
Sy stem limitations ...............................1 86
Cup holder ................................................ 11 0
Fitting/removing (centre console) ....... 11 0
Re ar .................................................... .111 D
Damage de tection (pa rked vehicle) .......1 76 Dashboa
rd
see Cockpit
Dashboard lighting see Instrument lighting
Data acquisition Vehicle .................................................. 25
Data import/export ................................ 267
Fu nction/no tes ................................... 267
Importing/exporting ........................... 268
Data storage
Electronic control units ........................ .25
Online services ...................................... 27
Ve hicle .................................................. 25
Date Setting the time and date automati‐
cally ..................................................... 262
Deactivating the alarm (A TA).................... 85
Dealership see Qualified specialist workshop
Declaration of conformity Electromagnetic compatibility ............... 22
Jack .......................................................23
Wi reless vehicle components ................22 512
Index

Ac
tive Brake Assi stFunctions limited
See Owner's Manual ........................... 453
Ac tive Dis tance Assi stavailable
again .................................................. .460
Ac tive Dis tance Assi stcur rently
una vailable See Owner's Manual .........460
Ac tive Dis tance Assi stinope rative ...... 460
Ac tive Lane Keeping Assist Camera
view restricted See Owner's Manual ... 462
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual .........457
Ac tive Lane Keeping Assist inopera‐
tive ...................................................... 458
bAc tive Light Sy stem inoperative .. 489
Ac tive Parking Assist and
PA RKTRONIC inoperati veSee Own‐
er's Manual ......................................... 463
Ad aptive Highbeam Assist Plus Cam‐
era view restricted See Owner's
Manual ................................................ 491 Ad
aptive Highbeam Assist Plus cur‐
re ntly una vailable See Owner's Man‐
ual ...................................................... .490
Ad aptive Highbeam Assist Plus inop‐
erative ................................................ .490
¯ AdBlue sy stem fault Engine
st art not possible ................................ 470
¯ AdBlue sy stem fault Perf.
re duced in XXX km See Owner's
Manual ................................................ 470
¯ AdBlue sy stem fault Perf.
re duced: XXX mph No start in XXX
miles .................................................... 470
¯ AdBlue sy stem fault See Own‐
er's Manual ........................................ .469
4Ad d 1 litre engine oil when next
re fuelling ............................................. 468
Air intake malfunction See Owner's
Manual ................................................ 485 Apply brake
todeselect Park (P)
position ...............................................4 72
App lybrake toselect R ........................ 473
À ATTENTION ASSIST inoperative ... 459
ÀAT TENTION ASSIS T:Take a
break! .................................................. 456
bAu tomatic driving lights inoper‐
ative .................................................... 490
Au xilia rybattery malfunction ...............473
Blind Spot Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 462
Blind Spot Assist inope rative ............... 456
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...4 58
ÁChange key bat teries ...................4 79
JChe ckbrake fluid le vel................ 448
Check brake pads See Owner's Man‐
ual ...................................................... .456
hChe cktyre(s) ............................... 474
! Clean the fuel filter .................... .463 514
Index

?Coolant
Stop vehicle Switch
engine off ............................................ 465
Cruise contro l and Limiter inope ra‐
tive ....................................................... 461
Cruise control inope rative ................... 460
Cruise control off ................................ 460
!cu rrently unavailable See Own‐
er's Manual ........................................ .449
÷cur rently una vailable See Own‐
er's Manual ........................................ .443
Desert drive progr. active ESP
una vailable See Owner's Manual .........481
ÿ Differe nt. lo cksys.
Malfunction ......................................... 482
ÿ Differe nt. lo cking sys. cooling
down Please wait................................ 484
Dif fere ntial lo ckactive ABS and ESP
not available ........................................ 480
5Engine oil le vel cannot be
measured ............................................ 466 4Engine oil le
velRe duce oil le vel...4 67
4 Engine oil le velSt op vehicle
Switch engine off ................................. 467
4Engine oil pressure Stop Switch
off engine ............................................ 468
Fa ult Drive at max. 80 km/h ...............458
Fo rding not possible Consult work‐
shop ....................................................4 85
6Fr ont left malfunction Consult
wo rkshop (Example) ............................4 54
Fr ont-passenger airbag disabled See
Owner's Manual ..................................4 53
Fr ont-passenger airbag enabled See
Owner's Manual ..................................4 52
Fr ont/re ar differe ntial lo cksystem
malfunction ......................................... 479
Gearbox pr otection Limit 30 km/h
Switch off LOW RANGE ....................... 484
b Hazard warning lamps mal‐
functioning .......................................... 490 &inoperative Bat
tery low .............. .488
&inoperative Refuel vehicle ........... 488
&inoperative See Owner's Man. ....487
! inope rative See Owner's Man‐
ual ....................................................... 450
÷inoperati veSee Owner's Man‐
ual ....................................................... 451
Tinoperati veSee Owner's Man‐
ual ....................................................... 447
G Inoperative .................................. 454
bIntellige nt Light System inoper‐
ative ....................................................4 88
ÁKe y not de tected (red displ ay
messa ge).............................................4 78
Á Key not de tected (white dis‐
pl ay messa ge)...................................... 478
b Left dipped beam (Example) ....... 489
6Left windowbag malfunction
Consult workshop (Example) ............... 451
Limiter inoperative ...............................4 61 Index
515