2018 MERCEDES-BENZ G-CLASS System setting

S
SafetyChildren in the vehicle ..................... 50
see Occupant safety
Safety system
see Driving safety systems
SD card
Inserting ........................................2 08
Inserting/removing ........................ 208
Removing ....................................... 208
SD memory card
see also Digital Operator's Man-
ual ..................................................2 03
Search & Send
see also Digital Operator's Man-
ual ..................................................2 03
Seat
Correct driver's seat position ........... 74
Seat backrest
Folding back .................................. 212
Seat belts
Adjusting the height ......................... 41
center rear-compartment seat ......... 42
Cleaning ......................................... 242
Correct usage .................................. 41
Fastening ......................................... 41
Important safety guidelines ............. 40
Introduction ..................................... 39
Releasing ......................................... 43
Warning lamp ................................. 192
Warning lamp (function) ................... 43
Seat heating
Indicator lamp (malfunction) ............ 79
Seat ventilation
Indicator lamp (malfunction) ............ 79
Seats
Adjusting (electrically) ..................... 76
Adjusting the 4-way lumbar sup-
port .................................................. 78
Adjusting the head restraint ............ 76
Cleaning the cover ......................... 241
Important safety notes .................... 74
Overview .......................................... 74
Storing settings (memory func-
tion) ................................................. 84
Switching seat heating on/off ......... 78
Switching seat ventilation on/off .... 79 Selector lever
Cleaning ......................................... 241
Sensors (cleaning instructions) ....... 239
Service interval display
Displaying a service message (on-
board computer) ............................ 236
Service menu (on-board com-
puter) .................................................. 167
Service products
Brake fluid ..................................... 286
Coolant (engi ne) ............................ 286
Eng

ine oil ....................................... 285
Fuel ................................................ 283
Important safety notes .................. 283
Notes ............................................. 283
Refrigerant (air-conditioning sys-
tem) ............................................... 287
Washer fluid ................................... 287
Setting
Date ............................................... 168
Time ............................................... 169
Setting the air distribution ................. 99
Setting the date/time format
see also Digital Operator's Man-
ual .................................................. 203
Setting the language
see also Digital Operator's Man-
ual .................................................. 203
Setting the time
see also Digital Operator's Man-
ual .................................................. 203
Settings
Calling up a stored setting ............... 85
Factory (on-board computer) ......... 171
Language ....................................... 168
On-board computer ....................... 168
SETUP (on-board computer,
Mercedes-AMG vehicles) .................. 171
Shift ranges ....................................... 116
Side impact air bag ............................. 45
Side marker lamp (display mes-
sage) ................................................... 180
Side windows
Convenience closing feature ............ 70
Convenience opening feature .......... 70
Important safety information ........... 69
Opening/closing .............................. 69
16Index

Changing the settings of the locking
system
You can change the settings of the locking sys-
tem. This means that only the driver's door and
the fuel filler flap are unlocked when the vehicle
is unlocked. This is useful if you frequently travel
alone.
XTo change the setting:press and hold down
the % and& buttons simultaneously
for approximately six seconds until the bat-
tery check lamp (
Ypage 65) flashes twice.
If the setting of the locking system is changed
within the signal range of the vehicle, pressing
the & or% button:
Rlocks or
Runlocks the vehicle
The SmartKey now functions as follows:
XTo unlock the driver's door and fuel filler
flap: press the %button once.
XTo unlock centrally: press the%button
twice.
XTo lock centrally: press the&button.
XTo restore the factory settings: press and
hold the %and& buttons simultane-
ously for approximately six seconds until the
battery check lamp (
Ypage 65) flashes
twice.
Mechanical key
General notes
If the vehicle can no longer be unlocked with the
SmartKey, use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm sys-
tem will be triggered. Switch off the alarm
(
Ypage 62).
If you unlock the vehicle using the mechanical
key, the fuel filler flap will not be unlocked auto-
matically.
XTo unlock the fuel filler flap: insert the
SmartKey into the ignition lock.
Removing the mechanical key
XPush release catch :in the direction of the
arrow and at the same time remove mechan- ical key ;from the SmartKey.
Further information on locking/unlocking the
driver's door (
Ypage 68).
Inserting the mechanical key
XPush mechanical key ;completely into the
SmartKey until it engages and release
catch :is back in its basic position.
SmartKey battery
Important safety notes
GWARNING
Batteries contain toxic and corrosive substan- ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatalinjury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately.
HEnvironmental note
Batteries contain dangerous
substances. It is against the
law to dispose of them with
the household rubbish. They
must be collected separately
64SmartKey
Opening and closing

Problems with the steering wheel heat-
ing
If steering wheel heating indicator lamp=is
flashing, the steering wheel heating has
switched off automatically. The vehicle's elec-
trical system voltage is too low because too
many electrical consumers are switched on.
XSwitch off electrical consumers that you do
not need, such as the rear window defroster
or interior lighting.
Once the battery is sufficiently charged, the
steering wheel heating will switch back on
automatically.
Steering wheel EASY-ENTRY/EXIT fea-
ture
Important safety notes
GWARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel and the driver's seat, you
and other vehicle occupants – particularly
children – could become trapped. There is a
risk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has
any body parts in the sweep of the seat and
the steering wheel.
If somebody becomes trapped:
Rpress one of the memory function position
buttons, or
Rpress one of the memory function memory
buttons, or
Rmove the switch for steering wheel adjust-
ment in the opposite direction to that in
which the steering wheel is moving
The adjustment process is stopped.
GWARNING
If you drive off while the EASY-ENTRY/EXIT
feature is making adjustments, you could lose
control of the vehicle. There is a risk of an
accident.
Always wait until the adjustment process is
complete before driving off.
!Do not activate the EASY-ENTRY/EXIT fea-
ture, if the seat backrest is reclined too far
backwards. This can damage the front or rear
seats. You must first move the backrest to a
vertical position.
The EASY-ENTRY/EXIT feature makes getting in
and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature in the on-board computer
(
Ypage 170).
Position of the steering wheel when the
EASY-ENTRY/EXIT feature is active
The steering wheel moves upwards and towards
the dashboard if:
Ryou remove the SmartKey from the ignition
lock or
Ryou open the driver's door and the SmartKey
is in position 0or 1in the ignition lock
iThe steering wheel only moves upwards and
towards the dashboard if it has not already
reached the upper steering limiter.
Position of the steering wheel for driv-
ing
The steering wheel is moved to the last selected position when:
Rthe driver's door is closed
Ryou insert the SmartKey into the ignition lock
The last position of the steering column is stored
when you switch off the ignition or when you
store the setting with the memory function
(
Ypage 84).
Mirrors
Rear-view mirror
XAdjust the rear-view mirror in such a way that
you have a good view of road and traffic con- ditions behind you.
Mirrors81
Seats, steering wheel and mirrors
Z

XTo switch on the daytime running lamps:
switch on theDaytime Running Lights
function via the on-board computer
(Ypage 169).
XTurn the light switch to the Ãposition.
With the engine running: depending on the
ambient light, the daytime running lamps or
the low-beam headlamps are switched on.
When the low-beam headlamps are switched
on, the green Lindicator lamp in the
instrument cluster lights up.
If the engine is running and you turn the light
switch to the TorL position, the manual
settings take precedence over the daytime run-
ning lamps.
Automatic headlamp mode
GWARNING
When the light switch is set to Ã, the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
L.
The automatic headlamp feature is only an aid.
The driver is responsible for the vehicle's light-
ing at all times.
à is the favored light switch setting.
The light setting is automatically selected
according to the brightness of the ambient light,
but not in the event of poor visibility due to
weather conditions such as fog, snow or spray.
XTo switch on the automatic headlamps:
turn the light switch to the Ãposition.
With the SmartKey in position 1in the igni-
tion lock, the parking lamps are switched on
or off automatically depending on the bright-
ness of the ambient light.
If you have switched on the Daytime Run‐
ning Lightsfunction via the on-board com-
puter, the daytime running lamps or the park-
ing lamps and low-beam headlamps will
switch on or off automatically while the
engine is running.
When the low-beam headlamps are switched
on, the green Lindicator lamp in the
instrument cluster lights up.
Rear fog lamp
The rear fog lamp improves visibility of your
vehicle for the traffic behind in the event of thick
fog. You must observe the legal requirements
for the country in which you are currently driving
when operating the rear fog lamp.
XTo switch on the rear fog lamp: turn the
SmartKey in the ignition lock to position 2or
start the engine.
XTurn the light switch to the LorÃ
position.
XPress the Rbutton.
The yellow Rindicator lamp on the instru-
ment cluster lights up.
Parking lamps
!
If the battery charge is very low, the parking
lamps or standing lamps are automatically
switched off to enable the next engine start.
Always park your vehicle safely and in a well lit
area, in accordance with the relevant legal
stipulations. Avoid using the Tparking
lamps over a period of several hours. If pos-
sible, switch on the right-hand Xor left-
hand W standing lamps.
XTo switch on: turn the light switch to the
T position.
The green Tindicator lamp on the instru-
ment cluster lights up.
Standing lamps
Switching on the standing lamps ensures the
corresponding side of the vehicle is illuminated.
XTo switch on the standing lamp: turn the
SmartKey to position uin the ignition lock or
remove the SmartKey.
XTurn the light switch to the W(left-hand
side of the vehicle) or X(right-hand side of
the vehicle) position.
Headlamp cleaning system
The headlamps are cleaned automatically if the
"Wipe with washer fluid" function is operated
ten times while the lights are on and the engine
is running (
Ypage 93). When you switch off
Exterior lighting87
Lights and windshield wiper s
Z

Overview of the climate control sys-
tem
General notes
Observe the settings recommended on the fol-
lowing pages. The windows could otherwise fog
up.
To prevent the windows from fogging up:
Rswitch off climate control only briefly
Rswitch on air-recirculation mode only briefly
Rswitch on the cooling with air dehumidifica-
tion function
Ractivate the "Windshield defrosting" function
briefly, if required
Climate control regulates the temperature and
the humidity in the vehicle interior and filters
undesirable substances out of the air.
The "Cooling with air dehumidification" function
is only available when the engine is running.
Optimum operation is only achieved when the
side windows and the sliding sunroof are closed. The climatic comfort deteriorates whilst the slid-
ing sunroof is open. Set the temperature man-
ually if the sliding sunroof is open.
The residual heat function can only be activated
or deactivated with the ignition switched off
(
Ypage 102).
The integrated filter can filter out most particles
of dust and completely filters out pollen. A clog-
ged filter reduces the amount of air supplied to
the vehicle interior. Depending on the operating
conditions and environmental influences, the
interval for replacing the filter may be shorter
than specified.
iVentilate the vehicle for a brief period during
warm weather, e.g. using the convenience
opening feature (
Ypage 70). This will speed
up the cooling process and the desired vehi-
cle interior temperature will be reached more
quickly.
Control panel for dual-zone automatic climate control
Control panel (Canada only)
:
Sets the temperature, left (Ypage 99)
;Defrosts the windshield (Ypage 100)
=Switches the ZONE function on/off (Ypage 100)
?Switches cooling with air dehumidification on/off (Ypage 98)
Switches the residual heat on/off (
Ypage 102)
ASwitches the rear window defroster on/off (Ypage 101)
BSets the temperature, right (Ypage 99)
96Overview of the climate control system
Climate control

ProblemPossible causes/consequences andMSolutions
The indicator lamp in the
¿orÁ button
flashes three times or
remains off. The "Cool-
ing with air dehumidifi-
cation" function cannot
be switched on.Cooling with air dehumidification has been deactivated due to a mal-
function.
XVisit a qualified specialist workshop.
Setting climate control to automatic
General notes
In automatic mode, the set temperature is main-
tained at a constant level. The system automat-
ically regulates the temperature of the dis-
pensed air, the airflow and the air distribution.
Automatic mode works best when cooling with
air dehumidification is also activated. If neces-
sary, cooling with air dehumidification can be
deactivated.
Automatic control
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 105).
XSet the desired temperature.
XTo activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Automatic air distribution and airflow are
activated.
XTo deactivate: press the_button.
or
XPress the IorK button.
The indicator lamp in the Ãbutton goes
out.
XTo switch to manual mode: press the_
button.
Setting the temperature
Different temperatures can be set for the driv-
er's and front-passenger sides.
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 105).
XAdjust control :orB (Ypage 96) to the
desired temperature.
Only change the temperature setting in small
increments. Start at 72 ‡ (22 †).
Setting the air distribution
Air distribution settings
P Directs air through the center and side air
vents
O Directs air through the footwell air vents
S Directs air through the center, side and
footwell vents
¯ Directs air through the defroster vents
b Canada only: directs the airflow through
the defroster, center and side air vents.
a Directs air through the defroster and
footwell vents
_ Canada only: directs the airflow through
the defroster, center and footwell air
vents.
Setting
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 105).
XPress the _button repeatedly until the
desired symbol appears in the display.
Setting the airflow
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 105).
XTo increase: press theKbutton.
XTo reduce: press theIbutton.
iThe airflow from the rear-compartment
vents and the center vents is the same.
Operating the climate control system99
Climate control

Switching the ZONE function on/off
XTo switch on:press theábutton.
The indicator lamp in the ábutton lights
up.
The temperature setting for the driver's side
is not adopted for the front-passenger side
and the rear compartment. The temperature
for the front-passenger side and the rear com-
partment is set separately.
XTo switch off: press theábutton.
The indicator lamp in the ábutton goes
out.
The temperature setting for the driver's side
is adopted for the front-passenger side and
the rear compartment.
Defrosting the windshield
General notes
You can use this function to defrost the wind-
shield or to defrost the inside of the windshield
and the side windows.
Switch off the "Windshield defrosting" function
as soon as the windshield is clear again.
Activating/deactivating
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 105).
XTo activate: press the¬button.
The indicator lamp in the ¬button lights
up.
The climate control system switches to the
following functions:
Rcooling with air dehumidification on
Rhigh airflow
Rhigh temperature
Rair distribution to the windshield and front
side windows
Rair-recirculation mode off
XTo deactivate: press the¬button.
The indicator lamp in the ¬button goes
out. The previously selected settings are
restored. The cooling with air dehumidifica-
tion function remains on. Air-recirculation
mode remains deactivated.
Activating/deactivating MAX COOL
maximum cooling
The MAX COOL function is only available in vehi- cles for the USA.
MAX COOL is only operational when the engine
is running.
XTo activate: press theÙbutton.
The indicator lamp in the button lights up.
XTo deactivate: press theÙbutton.
The indicator lamp in the Ùbutton goes
out. The previously selected settings are
restored.
When you activate MAX COOL, the following
functions are also switched on:
Rmaximum cooling
Rmaximum airflow
Rair-recirculation mode
Defrosting the windows
Windows fogged up on the inside
XActivate the Ácooling with air dehumidi-
fication function.
XActivate the Ãautomatic mode.
XIf the windows continue to fog up, activate the
"Windshield defrosting" function
(
Ypage 100).
iYou should only select this setting until the
windshield is clear again.
Windows fogged up on the outside
XSwitch on the windshield wipers (Ypage 93).
XPress the _button repeatedly until the
P orO symbol appears in the display.
iYou should only select this setting until the
windshield is clear again.
iIf you clean the windows regularly, they do
not fog up so quickly.
100Operating the climate control system
Climate control

XAvoid frequent acceleration or braking.
XHave all service and maintenance work car-
ried out at the specified intervals.
Fuel consumption also increases when driving in
cold weather, in stop-start traffic and in hilly ter-
rain.
Drinking and driving
GWARNING
Drinking and driving and/or taking drugs and driving are very dangerous combinations.
Even a small amount of alcohol or drugs can
affect your reflexes, perceptions and judg-
ment.
The possibility of a serious or even fatal acci-
dent is greatly increased when you drink or
take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or tak-
ing drugs.
Emission control
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation.
Certain engine systems are designed to keep
the level of poisonous components in exhaust
fumes within legal limits.
These systems only work at peak efficiency if
they are serviced exactly in accordance with the
manufacturer's specifications. Always have
work on the engine carried out at a qualified
specialist workshop. Mercedes-Benz recom-
mends that you use an authorized Mercedes-
Benz Center for this purpose. In particular, work
relevant to safety or on safety-related systems
must be carried out at a qualified specialist
workshop.
The engine settings must not be changed under any circumstances. Furthermore, all specific
service work must be carried out at regular
intervals and in accordance with the Mercedes-
Benz service requirements. You can obtain cur- rent information concerning the servicing of
your vehicle at any time from a qualified spe-
cialist workshop. This could be an overview of
the
maintena
nce work or any additional main-
tenance work, for example.
Braking
Important safety notes
GWARNING
If you shift down on a slippery road surface in an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on a slippery road surface.
GWARNING
If you select the LOW RANGE off-road gear on
a slippery road surface, the wheels could lose traction:
Rif you remove your foot from the accelera-
tor pedal when driving
Rif off road ABS intervenes when braking
If the wheels lose traction. the vehicle can no
longer be steered. There is an increased dan-
ger of skidding and accidents.
Never select the LOW RANGE off-road gear
when driving on slippery road surfaces.
Information on the parking brake (
Ypage 123).
Downhill gradients
!On long and steep gradients, you must
reduce the load on the brakes by shifting to a
lower gear in good time. This allows you to
take advantage of the engine's braking effect.
This helps you to avoid overheating the
brakes and wearing them out excessively.
When you take advantage of engine braking, a
drive wheel may not turn for some time, e.g.
on a slippery road surface. This could cause
damage to the drive train. This type of damage
is not covered by the Mercedes-Benz war-
ranty.
Driving tips125
Driving an d parking
Z