2018 MERCEDES-BENZ G-CLASS SUV service indicator

Overview of climate control sy
stems Note
s on climate control An interior air
filter must alw ays be used so that
th e air conditioning sy stem, pollution le vel moni‐
to ring and the air filtering function workcor‐
re ctly. Ma kesure that thefilter is ins talled cor‐
re ctly and thefilter housing in the engine com‐
partment is closed cor rectly using the cap and
alw ays tightly sealed when in operation. Use fil‐
te rs recommended and appr ovedby Mercedes-
Benz. Alw ays ha veservice workcar ried out at a
qu alified specialist workshop. THERMOTRONIC control panel
overview The indicator lamps in
the buttons indicate that
th e cor responding function is activated. 1
w Setsthe driver's side temp erature
2 _ Setsthe driver's side air distribution
3 H Setsthe air flow or switches off climate
control
4 Ã Sets climate control toautomatic
mode (/ page133)
5 ¬ Demiststh e windscreen
6 ! Calls up the air conditioning menu Switches
residual heat on or off
(/ page 135)
7 ¤ Switches there ar wind owheater on or
off
8 Vehicles without a stationary heater:
¿ switches the A/C function on or off
(/ page 133)
Ve hicles with a stationary heater: &
swit ches thest ationary heater on or off
(/ page 135)
9 g Switches air- recirculation mode on or
off (/ page 134)
A _ Setsthe front passenger side air distri‐
bution
B w Setsthe front passenger side temp era‐
ture 13 2
Climate cont rol

If
th e Mercedes-Benz emer gency call sy stem
cann otconnect tothe Mercedes-Benz emer‐
ge ncy call centre, the emer gency call is au tomat‐
ically sent tothe public emer gency services call
centre.
If no connection can be made tothe public
emer gency services, a cor responding message
appears inthe media displa y.#
Dial the emer gency call number 11 2onyour
mobile phone.
Ending an unin tentional emer gency call #
Select ~onthe multifunction steering
wheel.
Data transfer of the Mercedes-Benz emer‐
ge ncy call sy stem
In theeve nt of an au tomatic or manual emer‐
ge ncy call thefo llowing data is transmitte d,for
ex ample:
R Vehicle's GPS position data
R GPS position data on thero ute (a few
hundred metres before the incident)
R Direction of tra vel R
Vehicle identification number
R Vehicle drive type
R Number of people de term ined tobe in the
ve hicle
R Whe ther Mercedes me connect is available
or not
R Whe ther the emer gency call was initiated
manually or automatically
R Time of the accident
R Language setting on the multimedia sy stem
Fo r accident clarification purposes, thefo llowing
measures can be take n up toan hour af terthe
emer gency call has been initia ted:
R The cur rent vehicle position can be called up
R Avo ice connection totheve hicle occupants
can be es tablished
% ForRu ssia: various functions, e.g. receiving
traf fic information, cannot be used for up to
two hou rsafte r sending an emergency call. Fu
nction of the emer gency call sy stem self-
diagnosis (Russia)
Yo ur car verifies the operability of the emer‐
ge ncy call sy stem each time the ignition is ON.
In case of sy stem failure, you will be informed
with text messa geon the instrument clus ter and
with red indicator SOS NOT READY onthe media
displa y.
Please, make sure, that during 30 seconds af ter
switching ignition ON there d indicator SOS
NOT READY inthe upper right corner of the
media display is switched OFF, this means the
emer gency call sy stem passed diagnostics suc‐
cessfully. If necessar y,switch ON the media dis‐
pla y,if it was switched OFF before.
St arting/ending ERA-GLONASS test mode
(Russia)
Re quirements:
R The star ter battery is suf ficiently charge d.
R The ignition is switched on.
R The vehicle has been stationary for at least
one minute. 324
Multimedia sy stem

#
Only use battery charge rs with a maxi‐
mum charging voltage of 14.8 V. &
WARNING Risk ofexplosion from hydro‐
ge nga s igniting
A battery generates hydrogen gas during the
ch arging process. If there is a short circuit or
spar ksstart toform ,th ere is a danger of the
hy drogen gas igniting. #
Make sure that the positive term inal of
th e connected battery does not come
into conta ct withvehicle parts. #
Never place me tal objects or tools on a
batter y. #
When connecting and disconnecting the
batter y,yo u must obse rveth e descri‐
bed order forth e battery clamps. #
When giving starting assis tance, al ways
make sure that you on lyconnect bat‐
te ry term inals with identical polarity. #
During starting assis tance, you must
obse rveth e described order for con‐ necting and disconnecting
the jump
lead. #
Do not connect or disconnect the bat‐
te ry cla mp s while the engine is running. &
WARNING Risk ofexplosion during
ch arging process and starting assis tance
During thech arging process and starting
assis tance, the battery may release an explo‐
sive gas mixture. #
Avoid fire , naked flames, creating
spar ksand smoking. #
Make sure that there is suf ficient venti‐
lation du ring thech arging process and
during starting assis tance. #
Do not lean over a batter y. &
WARNING Risk ofexplosion from a fro‐
zen battery
A dischar ged battery may freeze at temp era‐
tures slightly abo veor below freezing point. During
starting assis tance or battery charg‐
ing, bat tery gas may be released. #
Alw aysth aw a frozen bat tery out first
before charging it or per form ing start‐
ing assis tance. If
th e indicator/warning lamps in the instrument
clus ter do not light up at low temp eratures, it is
ve ry likely that the dischar ged battery has fro‐
zen. In this case you may neither jump-s tart the
ve hicle nor charge the batter y.
The service life of a battery that has been
th awe d may be dramatically shor tened. The
st arting characteristics may be impaired, espe‐
cially at low temp eratures.
It is recommended that you ha veathaw ed bat‐
te ry checked at a qualified specialist workshop.
* NO
TEDama gecaused bynumerous or
ex tended attem ptsto start the engine Nume
rous or extended attem ptsto start the
engine may damage the catalytic con verter
due tonon-combu sted fuel. 398
Breakdown assis tance

Display messages
Int
roduction Note
s on display messages
Display messages appear on the multifunction
displa y.
Displ aymessa ges with graphic symbols are sim‐
plified in the Owner's Manual and may dif fer
from the symbols on the multifunction displa y.
The multifunction display sho wshigh-priority dis‐
play messages in red. Cer tain display messages
are accompanied byawa rning tone.
Please respond in accordance with the display
messages and follow the additional no tes in this
Owner's Manual.
Fo r some display messa ges, a symbol is also
shown:
R ¤ Further information R
O Hide display message
Yo u can select the desired symbol byswiping
left or right on the left-hand Touch Control.
Press the¤ symbol toshow fur ther informa‐
tion on the multifunction displa y.Press theO
symbol tohide the display message.
Yo u can hide lo w-priority display messages by
pressing the¤ button or the left-hand Touch
Control. The displ aymessa ges are then stored in
th e message memor y.
Re ctify the cause of a display message as
qu ickly as possible.
High-priority display messages cannot be hid‐
den. The multifunction display sho ws these dis‐
play messages continuously until the cause of
th e message has been rectified. Calling up
stored displ aymessages
On-boa rdcompu ter:
4 Service 5
1 message
If th ere are no display messages, No mes-
sagesappears on the multifunction displa y. #
Scroll thro ugh the display messages byswip‐
ing upwards or down wards on the left-hand
To uch Control. #
Toexitth e message memor y:press the
¤ button. 442
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
Mercedes me connect
Services limited See Own-
er's Manual *S
ervice limited.
At least one of the main functions of the Mercedes me connect sy stem is malfunctioning. #
Obser vethe no tes on the diagnostics connection (/ page 23). #
Consult a qualified specialist workshop.
G Inoperative *A
t least one main function of the Mercedes me connect sy stem or of the SOS emer gency call sy stem is malfunc‐
tioning. #
Consult a qualified specialist workshop.
6 Front left malfunction Con-
sult workshop (Example) *T
he cor responding restra int sy stem is faulty (/ page 30). &
WARNING Risk of inju ryor fata l injury due toa malfunction in there stra int sy stem
If th ere stra int sy stem is malfunctioning, restra int sy stem components may be triggered unintentionally or
might not be triggered at all in theev ent of an accident. This may af fect the seat belt tensioner or airbag, for
ex ample. #
Have there stra int sy stem checked and repaired immediately at a qualified specialist workshop. De
tection of a restra int sy stem fault:
R The restra int sy stem warning lamp 6does not light up when the ignition is switched on.
R The restra int sy stem warning lamp 6lights up continuously or repeatedly during a journe y.454
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions #
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. #
Wait until the engine has cooled down. #
Make sure 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
th e coolant temp erature display remains below 120 °C.
8
Reserve fuel level *T
he fuel supply has dropped into there ser verange. #
Refuel. Engine oil
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. 466
Display messages and warning/indicator lamps

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

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