fuel pressure MERCEDES-BENZ G-CLASS SUV 2018 Owners Manual

Climate control
........................................ 13 2
Overview of climate contro l systems ..........1 32
Operating the climate control sy stem ......... 13 3 Driving and pa
rking .................................. 141
Driving ........................................................ 141
DY NA MIC SELECT switch ........................... 15 0
G-Mode ...................................................... .152
Au tomatic transmission .............................. 15 3
Tr ans fer case .............................................. 15 9
Dif fere ntial lo cks ......................................... 16 0
Fu nction of the 4MATIC .............................. 16 2
Re fuelling .................................................... 16 2
Pa rking ...................................................... .168
Driving and driving saf ety sy stems .............. 17 7
Tr ailer hit ch................................................ 222
Ve hicle towing instructions ........................ .224 Instrument Display and on-board
compu ter.................................................. 225
Instrument display overview ...................... .225
Overview of the buttons on thesteering
wheel ..........................................................2 26
Operating the on-board computer .............. 226 Setting
the design ...................................... 228
Setting the additional value range .............. 228
Overview of displ ays on the multifunc‐
tion display .................................................2 29
Ad justing the instrument lighting ............... 230
Menus and submenus ................................ 230 LINGU
ATRO NIC ......................................... 237
No tes on operating saf ety .......................... 237
Ope ration ................................................... 237
Using LINGU ATRO NIC ef fectively ............... 239
Essential voice commands .......................... 24 0 Multimedia sy
stem .................................. 252
Overview and operation .............................. 252
Sy stem settings .......................................... 261
Na vigation .................................................. 273
Te lephone .................................................. .299
Online and Internet functions ..................... 325
Media ........................................................ .333
Ra dio .......................................................... 347
TV ............................................................... 350
Sound ......................................................... 358
Re ar Seat En tertainment Sy stem ................3 60 Maintenance and care
.............................374
ASS YST PLUS service inter val display ........ .374
Engine compartment .................................. 375
Cleaning and care ...................................... .381 Breakdown assistance
............................391
Emergency .................................................. 391
Flat tyre ...................................................... 393
Battery (vehicle) ......................................... 396
To w- starting or towing away ....................... 401
Electrical fuses ........................................... 405 Wheels and tyres
..................................... 408
No tes on noise or unusual handling char‐
acteristics .................................................. .408
No tes on regular lyinspecting wheels and
tyres .......................................................... .408
No tes on snow chains ................................ 408
Ty re pressure .............................................. 409
Wheel change .............................................. 41 5
Emergency spare wheel .............................. 424 Contents
3

1
Speedom eter →
225
2 ÷ ESP®
→
493
3 #! Turn signal lights →
11 9
4 Ð Powe r-assis tedsteering malfunction →
504
5 Multifunction display →
229
6 ! ABS malfunction →
493
7 ; Engine diagnostics →
500
8 Rev counter →
225
9 % Diesel engine: preglow
A ! Electric parking brake applied (red) →
493
B J Brakes (red) →
493
C # Electrical fault →
500
D L Distance warning →
499
E ? Coolant too hot/cold →
500
F Coolant temp erature display →
225 G
J Brakes (yellow) →
493
H ! Electric pa rking brake (yellow) →
493
I 6 Restra int sy stem →
30
J ü Seat belt not fastened →
498
K ï Trailer hit chnot operational →
504
L T Standing lights →
11 7
M Fuel le vel display
8 Fuelreser vewith fuel filler flap location
indicator →
500
N K High beam →
11 9
O L Low beam →
11 7
P R Rear fog light →
11 8
Q h Tyre pressure monitoring sy stem →
502
R å ESP®
OFF →
493 At
aglance – Warning and indicator lamps 9

1
Speedom eter →
225
2 #! Turn signal indicators →
11 9
3 Multifunction display →
229
4 Rev counter →
225
5 å ESP®
OFF →
493
÷ ESP®
→
493
6 K High beam →
11 9
L Low beam →
11 7
T Standing lights →
11 7
7 ? Coolant too hot/cold →
500
8 Coolant temp erature display →
225
9 L Distance warning →
499
A Ð Powe r-assis tedsteering malfunction →
504
B # Electrical fault →
500
C J Brakes (red) →
493 D
ü Seat belt not fastened →
498
E Fuel le vel display
F 8 Fuelreser vewith fuel filler flap location
indicator →
500
G R Rear fog light →
11 8
H 6 Restra int sy stem →
30
I % Diesel engine: preglow
J ; Engine diagnostics →
500
K J Brakes (yellow) →
493
L ! Electric pa rking brake applied (red) →
493
M h Tyre pressure monitoring sy stem →
502
N ! ABS malfunction →
493
O ! Electric pa rking brake (yellow) →
493
P ï Trailer hit chnot operational →
504 At
aglance – Warning and indicator lamps 11

Pr
otection of the environment
+ ENVIRONMENTAL
NOTEEnvironmental
dama gedue tooperating conditions and
personal driving style The pollutant emission of
your vehicle is
directly related tothewa yyo u operate your
ve hicle.
Help toprotect the environment byoperating
yo ur vehicle in an environmentally responsi‐
ble manner. Please obser vethefo llowing rec‐
ommendations on ope rating conditions and
pe rsonal driving style.
Operating conditions: #
Make sure that the tyre pressure is cor‐
re ct. #
Do not car ryany unnecessary weight
(e.g. roof luggage rack s once you no
lon ger need them). #
Adhere tothe service inter vals.
A regularly serviced vehicle will contri b‐
ute toenvironmen tal pr otection. #
Alw ays ha vemaintenance workcar ried
out at a qualified specialist workshop.
Pe rsonal driving style: #
Do not depress the accelera tor pedal
when starting the engine. #
Do not warm upthe engine while the
ve hicle is stationar y. #
Drive carefully and maintain a suitable
di st ance from theve hicle in front. #
Avoid frequent, sudden acceleration
and braking. #
Change gear in good time and use each
ge ar on lyup toÔ of its maximum
engine speed. #
Switch off the engine in stationary traf‐
fi c, e.g. byusing the ECO start/ stop
function. #
Drive fuel-ef ficiently. Obser vethe ECO
display for a fuel-ef ficient driving style. Ta
ke -back of end-of-life vehicles
EU countries onl y:
Mercedes-Benz will take back your end-of-life
ve hicle for environment-friendly disposal in
accordance with the European Union(EU) End-
of-Life Vehicles Directive.
A network of vehicle take -ba ckpoints and dis‐
mantlers has been es tablished foryo uto return
yo ur vehicle. You can lea veit at any of these
points free of charge . This makes an impor tant
contribution toclosing there cycling circle and
conse rving resources.
Fo r fur ther information about there cycling and
disposal of end-of-li fevehicles, and theta ke-
back conditions, please visit the national
Mercedes-Benz website foryo ur count ry. Gene
ral no tes 19

R
Obser vethe no tes on the cross-country ABS
(/ page 179).
R Before driving off-road, shift the transfer
case totheLOW RANGE off-road gear
(/ page 159).
R Engage the dif fere ntial lo cks if necessary
(/ page 161).
In LOW RANGE off-road gear or with the dif fer‐
ential loc ksengaged, theve hicle switches toG-
mode (/page 152).
In LO W RANGE off-roadgear, you can shift from
h tok and from itok without having to
depress the brake pedal. This can help you, for
ex ample, when rock ing your vehicle out of a rut
("rocking free").
R Alw ayske ep the engine running and in gear
when driving on downhill gradients and
slopes. Obse rveth e no tes on driving in
mountainous terrain.
R Do not drive on unknown terrain that is not
easily visible and stay on mar kedro utes.
R Alw ayske ep the doors and windo wsclosed
while theve hicle is in motion. R
Deactivate Active Dis tance Assi st
DISTRONIC, cruise control and theva riable
limiter.
R Adapt your driving style to thete rrain.
R Do not use the HOLD function on steep
downhill or uphill gradients with slippery or
loose sur faces.
Driving on sand
When driving on sand, also obser vethefo llowing
instructions:
R Swit chtothe Desert drive prog ram (a vailabil‐
ity depending on country) (/ page151).
R Shift toa lo werge ar.
R Drive quickly to overcome thero lling resist‐
ance, otherwise theve hicle may dig itself in.
R Drive in the trac ksofother vehicles if possi‐
ble. Make sure that thefo llowing prerequi‐
sites are me t:
- the tyre ruts are not too deep
- the sand is firm enough
- the ground clearance is suf ficient
R Lowe rth e tyre pressure in all four wheels. Contrary
tothe information on the tyre pres‐
sure plate (fuel filler flap), you can lo werthe
tyre pressu reto120 kPa (1.2 bar/1 7.4 psi).
Mercedes-AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognise dangers.
% Once youstop driving on sand, immediately
increase the tyre pressure again.
Information on there commended tyre pres‐
su re forth eve hicle's factor y-fitted tyres can
be found on the tyre pressure table on the
inside of the fuel filler flap (/ page410).
Fo rding
Also obser vethefo llowing information when
fo rd ing:
R Drive at no more than 10 km/h.
R Obser vethe maximum permissible ford ing
dep th (/ page 438).
R Switch off automatic climate control
(/ page 133).
R Vehicles with stationary heater/ventila‐
tion: switch thest ationary heater/ ventilation
off (/ page 135). Driving and pa
rking 147

#
Consult a qualified specialist workshop. #
Have the fuel tank and fuel lines
drained compl etely. *
NO
TEFuel may spr ayout when you
re mo vethe fuel pump nozzle. #
Only fill th e fuel tank until the pump
nozzle switches off. Re
quirements:
R The vehicle is unloc ked.
% Do not get into theve hicle again during the
re fuelling process. Otherwise, electros tatic
ch arge could build up again.
Obser vethe no tes on operating fluids
(/ page 429). 1
Fuelfiller flap
2 Fuelfiller cap
3 Fuel type
4 Tyre pressure table
5 QR code forre scue card #
Press on the back area of fuel filler flap 1. #
Turn the fuel filler cap anti-clockwise and
re mo veit. #
Comple tely inse rtthe pump nozzle into the
ta nk filler nec k,hook in place and refuel. #
Only fill th e fuel tank until the pump nozzle
switches off.
% Vehicles with a diesel engine: theta nk
fi ller neck is designed forre fuelling at diesel
fi lling pumps.
% Vehicles with a diesel engine: whenthe
fuel tank is compl etely em pty, top up with at
least 5 litres of diesel.
% Vehicles with a diesel engine: use afiller
neck with a lar gediame terfo rve hicles with
a diesel engine when topping up fuel from a
fuel can. Otherwise, thefiller neck cannot
slide into theta nk. #
Replace the cap on thefiller neck and turn
clockwise until it engages audibl y. #
Close the fuel filler flap. Driving and parking
16 5

R
Vehicles with Active Parking Assis t:do
not use Active Parking Assist when snow
ch ains are fitted.
% You can permanently limit the maximum
ve hicle speed for driving with winter tyres
(/ page 190).
% You can deactivate ESP ®
to pull away . This
allo ws th e wheels tospin, achieving an
increased driving forc e. Ty
re pressure Note
s on tyre pressure &
WARNING Risk of accident due toinsuf‐
fi cient or excessive tyre pressure
Underinfla ted or overinfla ted tyres pose the
fo 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 greatlyimpair tyre
traction.
R The driving characteristics, as well as
st eering and braking, may be greatly
impaired. #
Comply with there commended tyre
pressure and check the tyre pressure of
all tyres including the spare wheel regu‐
larly:
R at least once a month
R when the load changes
R before embarking on a lon ger journey
R if operating conditions change, e.g. off-
ro ad driving #
Adjust the tyre pressure as necessar y. Driving wi
thtyre pressu rethat is too high or too
low can:
R Sho rten the service life of the tyres.
R Cause increased tyre damage. R
Adversely af fect driving characteristics and
th us driving saf ety, e.g. due toaquaplaning. &
WARNING Risk of accident from repea‐
te d tyre pressure drop
If th e tyre pressure drops repeatedl y,the
wheel, valve or tyre may be damaged.
Insuf ficient tyre pressure can cause the tyres
to bur st. #
Inspect the tyre for signs of fore ign
objects. #
Check whe ther the wheel or valve has a
leak. #
Ifyo u are unable torectify the damage,
conta ct aqualified specialist workshop. Information on
there commended tyre pressure
fo rth eve hicle's factor y-fitted tyres can be found
on the tyre pressure table on the inside of the
fuel filler flap (/ page410).
Use a sui table pressure gauge tocheck the tyre
pressure. The outer appearance of a tyre does
not permit any reliable conclusion about the tyre
pressure. Wheels and tyres
409

Ve
hicles with a tyre pressure monitoring sys‐
te m: you can also check the tyre pressure using
th e on-board computer.
Only cor rect tyre pressures when the tyres are
cold. Conditions for cold tyres:
R The vehicle has been par ked with the tyres
out of direct sunlight for at least thre e hours.
R The vehicle has tr avelled less than 1.6 km.
A rise in the tyre temp erature of 10°C increases
th e tyre pressure byappr ox.10 kPa (0.1 bar/
1. 5 psi). Take this into account when checking
th e tyre pressure of warm tyres.
Tr ailer operation no tes
Alw ays inflate there ar axle tyres tothere com‐
mended tyre pressures on the tyre pressure
ta ble for increased load.
Note s on driving on sand
When driving on sand, you can lo werth e tyre
pressure (/ page145). Ty
re pressure table The tyre pressure
table is on the inside of the
fuel filler flap. The tyre pressure
table sho ws there commended
tyre pressure for all tyres appro vedfo rth is vehi‐
cle. The recommended tyre pressures apply for
cold tyres under various operating conditions,
i.e. loading and/or speed of theve hicle.
If one or more tyre sizes precede a tyre pres‐
sure, the tyre pressure information following is
only valid forth ose tyre sizes.
If th e preceding tyre sizes are complemented by
th e+ symbol, the tyre pressure information fo
llowing sho wsalternative tyre pressures.
These tyre pressures may impr oveyour vehicle's
ri de comfort. Fuel consum ption may then
increase slightl y.
The load conditions "partially laden" and "fully
laden" are defined in theta ble for dif fere nt num‐
be rs of passengers and amounts of luggage. The
actual number of seats may dif fer from this.
Make sure toobser vethefo llowing fur ther rela‐
te d subjec t:
R Notes on tyre pressure (/ page 409) Ty
re pressure moni toring sy stem Fu
nction of the ty repressure moni toring sys‐
tem
The sy stem checks the tyre pressure and the
tyre temp erature of the tyres fitted totheve hicle
by means of a tyre pressu resensor.
New tyre pressure sensors, e.g. in winter tyres,
are automatically taught-in during thefirs t jour‐
ney they are used. 41 0
Wheels and tyres

These tyres are specially adap
tedto the con‐
trol sy stems, such as ABS, ESP ®
and
4MATIC, and mar ked as follo ws:
R MO = Mercedes-Benz Original
R MOE = Mercedes-Benz Original Extended
(run-flat tyres only for cer tain wheels)
R MO1 = Mercedes-Benz Original (only cer‐
ta in AMG tyres)
Cer tain characteristics, such as handling,
ve hicle noise emissions, fuel consum ption,
et c. may otherwise be adversely af fected.
Fu rthermore, other tyre sizes could result in
th e tyres rubbing against the body and axle
components when loaded. This could result
in damage tothe tyre or theve hicle.
Only use tyres, wheels and accessories that
ha ve been checked and recommended by
Mercedes-Benz. *
NO
TERisk todriving saf ety from retrea‐
ded tyres Re
treaded tyres are nei ther tested nor rec‐
ommended byMercedes-Benz, since pr evi‐
ous damage cannot alw ays be de tected on
re treaded tyres.
Fo rth is reason driving saf ety cannot be guar‐
anteed. #
Do not use used tyres if you ha veno
information about their pr evious usage. *
NO
TEPossible damage towheels or
tyres when driving over obs tacles Large wheels ha
vea lo wer tyre section width.
The lo werth e tyre section width, the greater
is therisk of damage towheels or tyres when
driving over obs tacles. #
Avoid obs tacles or drive pa rticular ly
carefully. *
NO
TEDama getoelectronic component
parts from the use of tyre-fitting tools Ve
hicles with a tyre pressure monitoring
sy stem: electronic component parts are
located in the wheel. Tyre-fitting tools should
not be applied in the area of theva lve.
The tools could damage the electronic com‐
ponent parts. #
Have the tyres changed at a qualified
specialist workshop onl y. *
NO
TEDama getosummer tyres at low
ambient temp eratures At
low ambient temp eratures, tears could
fo rm when driving with summer tyres, caus‐
ing permanent damage tothe tyre. #
Attemp eratures below 7 °C, use M+S
tyres. Ac
cessory pa rts th at are not appr ovedfo ryo ur
ve hicle byMercedes-Benz or are not being used
cor rectly can impair the operating saf ety. 416
Wheels and tyres

Fo
r more information on wheels and tyres, con‐
ta ct a qualified specialist workshop.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (/ page 409)
R Tyre pressure table (/ page410)
R Notes on the emer gency spa rewheel
(/ page 424) Note
s on inter changing wheels &
WARNING Risk of inju rythro ugh dif fer‐
ent wheel sizes
Inter changing the front and rear wheels if the
wheels or tyres ha vediffere nt dimensions
may se verely impair the driving characteris‐
tics.
The disk brakes or wheel suspension compo‐
nents may also be damaged. #
Rotate front and rear wheels on lyifthe
wheels and tyres are of the same
dimensions. Inter
changing the front and rear wheels if the
wheels or tyres ha vediffere nt dimensions can
re nder thege neral operating pe rmit in valid.
The wear pat tern s on the front and rear wheels
dif fer:
R Front wheels wear more on the shoulder of
th e tyre
R Rear wheels wear more in the cent reofthe
tyre
On vehicles with the same front and rear wheel
size, you can inter change the wheels every
5,000 to10,000 km, depending on thewe ar.
Ensure the direction of rotation is maintained for
th e wheels.
It is imperative toobser vethe instructions and
saf ety no tes on "Changing a wheel" when doing
so Preparing theve hicle for a wheel
ch ange( /page 419). Note
s onstoring wheels When
storing wheels, obser vethefo llowing
no tes:
R Afterre moving wheels, store them in a cool,
dry and preferably dark place.
R Protect the tyres from conta ct withoil,
grease or fuel. Ve
hicle tool kit overview The
vehicle tool kit contains:
R vehicle tool bag with:
- pump le verfo r jack
- wheel spanner with T-piece
- screwdriver (inser ted in a pump le ver)
- dismantling tool forro of rack (inser ted in
a pump le ver)
R jack with adapter 41 8
Wheels and tyres