coolant MERCEDES-BENZ G-Class 2017 W463 User Guide

Lights
Display messagesPossible causes/consequences andMSolutions
b
Example:CheckL eftLow Beam
The bulb in question is malfunctioning.
XVisitaqualifie dspecialist workshop.
or
XCheckw hether you are permitted to replacet hebulb yourself
(Ypage 88).
iLEDl ight sources :the display message for th ecorresponding
lamp onl yappearsw hen all th eLEDsint helamp have failed.
b
Malfunction SeeOperator'sM anual
The exteriorlighting is malfunctioning.
XVisit aqualifie dspecialist workshop.
b
AutoL ampFunctionInoperative
The light sensor is defective.
XVisitaqualifie dspecialist workshop.
b
Switch Off Lights
The lightsa re still switche donwhen you leave th evehicle .Awarning
tone also sounds.
XTurn th elight switch to position Ã.
Engine
Display messagesPossible causes/consequences and MSolutions
+
CheckCoolantLevelSee Operator'sMan‐ual
The coolant level is to olow.
XAdd coolant ,observingt hewarning notes before doings o
(Ypage 229).
XHav ethe coolant system checked at aqualifie dspecialist workshop
if th ecoolant needs toppingupm oreo ften than usual.
?The fan motor is malfunctioning.
XAt coolant temperatures below drivetot he nearest
qualified specialist workshop.
XAvoid heavy loads on the engine as you do so, e.g. driving in moun-
tainou sterrai nand stop-start traffic.
176Display messages
On-board computer and displays
the marking
H,

Display messagesPossible causes/consequences andMSolutions
?
CoolantToo HotStopVehicl eTurnEngine Off
The coolan tistoohot .
Aw arning tone also sounds.
GWARNIN G
Do no tdrive when your engin eisoverheated. This can caus esom e
fluids whic hmay hav eleaked int othe engin ecom partmen ttocatch
fire.
Steam from th eoverheate denginec an also caus eserious burn swhich
can occur jus tbyopening th ehood.
There is ariskofi njury.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur ethe vehicl eagainst rollin gaway (Ypage 120).
XLeav ethe vehicl eand keep asafed istanc efromt hevehicl euntil th e
engin ehas cooled down .
XMakesuret hatthe air supply to th eenginer adiato risnotblocked,
e.g. by snow, slus horice.
XDo no tstart th eenginea gain until th edisplay message goe sout and
th ec oolan ttem perature is belo w
Otherwise,the
engin ecould be damaged.
XPay attention to th ecoolan ttem perature gauge .
XIf thetem perature increases again ,visit aqualified specialist work-
sho pimmediately.
Under normal operating condition sand wit hthe specified coolan t
level, th ecoolan ttem perature may ris eto
The poly-V-belt may hav etorn.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XChec kthe poly-V-belt .
If th epoly-V-belt is torn:
!Do no tcontinue driving. The engin ecould otherwise overheat.
XConsult aqualified specialist workshop .
If th epoly-V-belt is not damaged :
XWait until thedisplay message disappear sbefore restarting th e
engine. Otherwise ,the engin ecould be damaged.
XPay attention to th ecoolan ttem perature gauge .
XVisitaqualified specialist workshop .
Display messages177
On-boardc omputer andd isplays
Z
the marking
H
the marking
H.
.

Engine
Warning/
indicator
lampNSignaltype
Possible causes/consequences and M
Solutions
;NThe yellow CheckE nginew arning lamp lightsupw hile theengine is running.
Therem ay beamalfunction, for example:
Rin th eengine management
Rin th efuel injection system
Rin th eexhaust system
Rin th eignition system
Rin th efuel system
The emission limit values may be exceeded and th eengine may be in emergency
mode.
XVisitaq ualified specialist workshop immediately.
In somes tates, you must immediately visi taqualified specialist workshop as soon
as th eyellow CheckE nginew arning lamp lightsu p. This is due to thelegal require-
ments in effect in these states. If in doubt,c heck whether suchl egal regulations
apply in th estate in whichy ou are currently driving.
8NThe yellow reservef uel warning lamp lightsupw hile theengine is running.
The fuel leve lhas dropped int othe reserver ange.
XRefuel at th enearest gas station.
8NThe yellow reservef uel warning lamp flashes while th evehicle is in motion.
In addition,t he; CheckE nginew arning lamp may light up.
The fuel fille rcap is no tclosed correctly or th efuel system is leaking.
XCheckt hatthe fuel fille rcap is correctly closed.
XIf th efuelfiller cap is not correctly closed: close thefuel fille rcap.
XIf th efuelfiller cap is closed: visitaq ualified specialist workshop.
?NThe red coolant warning lamp lightsupw hile theengine is runnin gand the
coolant temperatur egauge is at th estart of th escale.
The temperatur esensor for th ecoolant temperatur egauge is malfunctioning.
The coolant temperatur eisnolonger beingm onitored. Thereisar isk of engine
damag eifthecoolant temperatur eistoohigh.
XPull ove rand stop th evehicle safely and switch off th eengine ,payinga ttention
to road and traffic conditions. Do no tcontinue driving unde rany circumstances.
XSecure th evehicle against rolling away (Ypage 120).
XConsult aqualified specialist workshop.
194Warning and indicator lamps in th einstrumen tcluster
On-boardc omputer and displays

Warning/
indicator
lampNSignal type
Possiblec auses/consequences and M
Solutions
?NThe red coolant warning lamp comes on while the engine is running.
The coolant levelist oo low.
If the coolant levelisc orrect, the airflow to the engine radiator may be blocked or
the electric engine radiator fan may be defective.
The coolant is too hot and the engine is no longer being cooleds ufficiently.
XObserve the additionaldisplay messages in the multifunction display.
XPullover and stop the vehicles afelyand switch off the engine, paying attention
to road and traffic conditions.
XSecure the vehiclea gainst rolling away(Ypage120).
XLeave the vehiclea nd keepasafe distance from the vehicleu ntil the engine has
cooledd own.
XCheck the coolant levela nd add coolant, observing the warning notes
(Ypage2 29).
XIf you have to add coolant frequently, have the engine cooling system checked.
XMake sure that the air supply to the engine radiator is not blocked,e .g. by snow,
slush or ice.
XDo not start the engine again until the coolant temperature gauge is below the H
marking (Ypage1 58). Otherwise, the engine coul dbedamaged.
XDrive to the neares tqualified specialist workshop.
XAvoid heavy loads on the engine as you do so, e.g. driving in mountainous terrain
and stop-and-go traffic.
?N The red coolant warning lamp comes on while the engine is running.
The coolant temperature gauge has exceededt heHmarking (
Ypag e158) .The
airflow to the engine radiator may be blocked or the coolant levelm ay be too low.
GWARNING
The engine is not being cooleds ufficiently and may be damaged.
Do not drive when you rengine is overheated. This can caus esome fluids which
may have leaked into the engine compartment to catch fire.
Steam from the overheated engine can als ocaus eserious burns which can occur
just by opening the hood.
There is arisk of injury.
XObserve the additiona ldisplay messages in the multifunction display.
XPul lover and stop the vehicles afelyand switch off the engine, paying attention
to road and traffic conditions.
XSecure the vehiclea gainst rolling away(Ypage120).
XLeave the vehiclea nd keepasafe distance from the vehicleu ntil the engine has
cooledd own.
XCheck the coolant levela nd add coolant, observing the warning notes
(Ypage2 29).
XIf you have to add coolant frequently, have the engine cooling system checked.
XMake sure that the air supply to the engine radiator is not blocked,e .g. by snow,
slush or ice.
Warning and indicator lamps in the instrument cluster195
On-board computer and displays
Z

Warning/
indicator
lampNSignal type
Possiblec auses/consequences and M
Solutions
XIf the coolant temperature gauge is below the Hmarking (Ypag e158) ,drive on
to the next qualified specialist workshop.
XAvoid heavy loads on the engine as you do so, e.g. driving in mountainous terrain
and stop-and-go traffic.
Driving systems
Warning/
indicator
lampNSignal type
Possiblec auses/consequences and M
Solutions
·NThe red distance warning lamp lights up while the vehicleisinm otion.Awarning
tone als osounds.
You are approaching avehicleoras tationary obstacl einyourline of travel at too
high aspeed.
XBe prepared to brake immediately.
XPay carefu lattention to the traffic situation. You may have to brake or take
evasive action.
Further information on DISTRONIC PLUS (
Ypag e132).
196Warning and indicator lamps in the instrument cluster
On-board computer and displays

If you need to do any work inside the engine
compartment:
Rswitch off the ignition
Rnever reach into the area where there is a
risk of danger from moving components,
such as the fan rotation area
Rremove jewelry and watches
Rkeep items of clothing and hair, for exam-
ple, awayfrom moving parts
GWARNING
The cooling system is pressurized, particularly
when the motor is warm. If you open the cap,
you could be scaldedifh ot coolant spraysout.
There is arisk of injury.
Let the engine cool down before you open the
cap. Wear gloves and eye protection. Slowly
open the cap to relieve pressure.
GWARNING
Opening the hood when the engine is over-
heated or when there is afire in the engine
compartment could expose you to hot gases
or other service products. There is arisk of
injury.
Let an overheated engine cool down before
opening the hood. If there is afire in the
engine compartment, keep the hood closed
and contact the fire department.
Checking coolant level
Checking the coolant level (example)
XPark the vehicle on alevel surface. Only check the coolant level when the vehicle
is on alevel surface and the engine has cooled
down.
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 104).
XCheck the coolant temperature display in the
instrument cluster.
The coolant temperature must be below
158 ‡(70 †).
XSlowlyt urn cap :half aturn counter-clock-
wise and allow excess pressure to escape.
XTurn cap :further counter-clockwise and
remove it.
If the coolant is at the level of marker bar =
in the fillern eck when cold, there is enough
coolant in coolant expansion tank ;.
If the coolant level is approximately 0.6 in
(1.5 cm) above marker bar =in the fillern eck
when warm, there is enough coolant in cool-
ant expansion tank ;.
XIf necessary,add coolant that has been tested
and approved by Mercedes-Benz.
XReplace cap :and turn it clockwise as far as
it willg o.
For further information on coolant, see
(
Ypage 279).
Adding washe rfluid to the windshield
washe rsystem/headlamp cleaning
system
GWARNING
Windshield washer concentrate could ignite if it comes into contact with hot engine compo-
nents or the exhaust system. There is arisk of
fire and injury.
Make sure that no windshield washer con-
centrate is spilled next to the fillern eck.
Engine compartment229
Maintenanceand care
Z

Cleaning thepaintwork
!Do no taffix:
Rstickers
Rfilms
Rmagnetic plates or similar items
to painte dsurfaces .You coul dotherwise
damag ethe paintwork.
Scratches, corrosive deposits ,areas affected by
corrosion and damag ecaused by inadequate
car ecanno talways be completely repaired .In
suchc ases, visit aqualified specialist workshop.
XRemove dirt immediately, wherep ossible,
while avoiding rubbing to ohard.
XSoak insect remains withi nsect removerand
rinse off th etreated areas afterwards.
XSoak bird droppings withw aterand rinse off
th et reated areas afterwards.
XRemove coolant ,brak efluid ,tre er esin, oils,
fuels and greases by rubbing gently witha
cloth soaked in petroleum ether or lighter
fluid.
XUse tar remove rtoremove tar stains.
XUse siliconer emovertoremove wax.
If wate rnolonger forms "beads"o nthe paint
surface, use th epaintc arep roduct srecommen-
ded and approved by Mercedes-Benz. This is the
cas eapproximately every three to fiv emonths,
dependingont heclimate conditionsa nd the
car eproduct used.
The cleanin gproduct PaintC leaner, whichh as
been recommended and approved by
Mercedes-Benz, should be used when dirt has
penetrated th epaints urface.
Als ouse PaintC leaner on paintt hath as become
dull.
Do no tuse these car eproduct sinthesun or on
th eh ood while th ehood is hot .
XUse
asuitable touch-up stick ,e.g.MBT ouch-
Up Stick ,torepair slightd amagetothepaint-
work quickly and provisionally.
Matt efinish care
!Never polisht hevehicle or th elight alloy
wheels. Polishingc auses thefinish to shine.
!The followingm ay causethe paintt o
become shinya nd thus reducethe matte
effect:
Rstron grubbing of th epaintwork with
unsuitable materials
Rfrequentu se of automatic car washes
Rwashingthevehicle in direct sunlight
!Never use paintc leaner, buffing or polishing
products, or glossp reserver, e.g.wax. These
product sare only suitable for high-gloss sur-
faces. Theiru se on vehicleswithm atte finish
leads to considerable surface damage( shiny,
spotte dareas).
Always have paintwork repairs carried out at a
qualified specialist workshop.
!Do no tuse wash program swithah ot wax
treatmen tunde rany circumstances.
Observ ethese note sifyour vehicle has aclear
matte finish. This will help you to avoid damage
to th epaintwork due to incorrect treatment.
Thesen otesalso apply to light alloy wheelsw ith
ac lear matte finish.
The vehicle should ideally be washedbyh and
usingas oftsponge, car shampoo and plenty of
water.
Use only insect remove rand car shampoo from
th er ange of approved Mercedes-Ben zcare
products.
Cleaning th evehicle parts
Cleaning th ewheels
GWARNING
The wate rjet from acircular je tnozzle (dirt
blasters)c an causeinvisible exterior damage
to th etires or chassis components .Compo-
nent sdamaged in this way may fail unexpect-
edly. Thereisar iskofana ccident.
Do no tuse power washers withc ircular jet
nozzles to clean th evehicle .Haved amaged
tires or chassis components replaced imme-
diately.
!Do no tuse acidic wheel cleanin gproducts
to remove brak edust.T his coul ddamage
wheel boltsa nd brakecomponents.
Care233
Maintenance and care
Z

Recommendedtire pressures
The recommended tire pressure applie stothe
tire sm ounted at the factory.
The Tir eand Loading Information placard con-
tains the recommended tire pressures for cold
tire sonaf ully loaded vehicle and for the maxi-
mum permissible vehicle speed.
The tire pressure table contains the recommen- ded pressures for coldt iresfor variou soperat-
ing conditions ,i.e .d iffering loa dand speed con-
ditions.
Increasedv ehicle weight due to optional
equipment
The combined weigh tofallstandard and
optionale quipment available for the vehicle,
regardless of whether it is actually installed on
the vehicle or not.
Rim
Thisist he part of the wheel on which the tire is
mounted.
GAW R(Gross Axle Weight Rating)
The GAW Risthe maximum grossa xlew eight
rating. The actual loa donanaxlem ustn ever
excee dthe grossa xlew eigh trating. The gross
axl ew eigh trating can be found on the vehicle
identification plate on the B-pillar on the driver's
side.
Speed rating
The speed rating is part of the tire identification. It specifies the speed rang efor which the tire is
approved.
GTW (Gross Trailer Weight)
The GT Wisthe weigh tofatraile rincluding the
weigh tofthe load, luggage, accessorie setc. on
the trailer.
GVW (Gross Vehicl eWeight)
The grossv ehicle weigh tincludes the weigh tof
the vehicle including fuel, tools, the spare wheel,
accessorie sinstalled, occupants, luggage and
the drawbar noseweight, if applicable. The gross
vehicle weigh tmustn ot excee dthe grossv ehi-
cle weigh trating GVW Rasspecified on the vehi-
cle identification plate on the B-pillar on the
driver'ss ide.
GVWR (Gross Vehicl eWeight Rating)
The GVW Risthe maximum permissible gross
weigh tofafully loaded vehicle (the weigh tofthe
vehicle including al laccessories, occupants,
fuel, luggage and the drawbar noseweight, if
applicable). The grossv ehicle weightrating is
specified on the vehicle identification plate on
the B-pillar on the driver'ss ide.
Maximum loaded vehicle weight
The maximum weightist he sumo f:
Rthe curb weigh tofthe vehicle
Rthe weigh tofthe accessories
Rthe loa dlim it
Rthe weigh tofthe factory installed optional
equipment
Kilopascal (kPa)
Metricu nitf or tire pressure. 6.9 kPa corre-
sponds to 1psi.A nother uni tfor tire pressure is
bar. 100 kilopascals (kPa )are the equivalent of
1b ar.
Load index
In addition to the load-bearing index, the load
index may also be imprinte donthe sidewal lof
the tire .Thiss pecifies the load-bearing capacity
of the tire more precisely.
Curb weight
The weigh tofavehicle with standard equipment
incl uding the maximum capacity of fuel, oil and
coolant. It also includes the air-conditioning sys-
tem and optionale quipment if thesea re instal-
le dint he vehicle ,but doe snot includ epassen-
ger sorl uggage.
Maximum load rating
The maximum tire loa disthe maximum permis-
sible weigh tinkilograms or lb sfor which atire is
approved.
Maximum permissiblet ire pressure
Maximumpermissible tire pressure for one tire.
Maximum load on on etire
Maximu mloadono ne tire .Thisisc alculate dby
dividing the maximum axl eloa dofo ne axl eby
two.
268Al la bout wheels and tires
Wheels and tires

from the data shownhere. The correct data
for you rvehiclec an be found on the vehicle
identificatio nplate that is mounted on your
vehicle.
Vehicle identification number (VIN)
:VIN (stamped into the chassi sonthe right-
hand side,w hen viewed in the direction of
travel)
The VIN can als obefound on the vehiclei den-
tification plate (
Ypag e275).
The VIN can als obefound at the lower edge of
the windshield (
Ypag e276).
Engine number
Example :engine compartment
:
Emissions control information plate, includ-
ing the certification of both federala nd Cali-
forniane missions standards
;Engine numbe r(stamped into the crank-
case)
Service products and filling capaci-
ties
Important safety notes
GWARNING
Service products may be poisonousa nd haz-
ardous to health. There is arisk of injury.
Comply with instructions on the use ,storage
and disposal of service products on the labels
of the respective original containers. Always
store service products sealed in their original
containers. Always keep service products out
of the reach of children.
HEnvironmental note
Disposeofs ervice products in an environ-
mentall yresponsiblem anner.
Service products include the following:
RFuels
RLubricants (e.g. engine oil,t ransmission oil)
RCoolant
RBrake fluid
RWindshieldwasher fluid
RClimate control syste mrefrigerant
Components and service products must match.
Only use products recommendedbyM ercedes-
Benz. Damag ewhich is caused by the use of
products which have not been recommendedi s
not covered by the Mercedes-Benz warranty or
goodwil lgestures. Products approved by
Mercedes-Benz are listed in this Operator's
Manual in the appropriate section.
Informatio nontested and approved products
can be obtained at aMercedes-Benz Service
Center or on the Internet at
http://bevo.mercedes-benz.com.
You can recognize service products approved by
Mercedes-Benz by the following inscription on
the containers:
RMB-Freigabe (e. g. MB-Freigabe 229.51)
RMB Approval( e. g. MB Approval2 29.51)
Other designations or recommendations indi-
cate alevelofq uality or aspecificatio nin
accordance with an MB Sheet numbe r(e.g. MB
229.5). They have not necessarily been
approved by Mercedes-Benz.
276Service products and filling capacities
Technical data

Filling capacities
The followingvalue srefer to an oil chang e
includin gthe oil filter.
ModelCapacit y
G5502.4USg al(9.0 l)
Mercedes-AMG G632.25 US gal
(8.5 l)
Mercedes-AMG G652.77 US gal
(10.5 l)
Additives
!Do not us eany additive sinthe engine oil.
Thisc ould damag ethe engine.
Brake fluid
GWARNING
The brake fluid constantly absorbsm oisture
from the air. Thisl owersthe boiling point of
the brake fluid .Ifthe boiling point of the brake
fluid is too low, vapor pockets may form in the
brake system when the brakes are applied
hard. Thisw ouldimpai rbraking efficiency.
There is ariskofana ccident.
Yo us houl dhavet he brake fluid renewe dat
the specified intervals.
Whe nhandling brake fluid ,observe the impor-
tant safety notes on service products
(
Ypage 276).
Only us ebrake fluid approved by Mercedes-
Benz in accordance with MB-Freigab eorMB-
Approval3 31.0.
Information abouta pproved brake fluid can be
obtaine datany qualified specialist workshopo r
on the Interneta t
http://bevo.mercedes-benz.co m.
iHave the brake fluid regularly replaced at a
qualified specialist workshop in accordance
with the replacement intervals and the
replacement confirmed in the service report.
Coolant
Importan tsafety notes
GWARNING
If antifreeze comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is arisk of fire and injury.
Let the engine cool downb efore youadd anti-
freeze.M ake surethat antifreeze is not spilled
next to the filler neck. Thoroughly clea nthe
antifreeze from components before starting
the engine.
!Only ad dcoolant that has beenp remixed
with the desire dantifreeze protection. You
coul dotherwise damag ethe engine.
Furthe rinformatio noncoolants can be found
in the Mercedes-Benz Specifications for Ser-
vice Products, MB BeVo 310.1, e.g. on the
Internet at http://bevo.mercedes-benz.com.
Or contact aqualifie dspecialist workshop.
!Always use asuitabl ecoolant mixture, even
in countries where hig htemperatures prevail.
Otherwise ,the engine cooling system is not
sufficiently protected from corrosion and
overheating.
iHave the coolant regularly replaced at a
qualified specialist workshop and the replace-
ment confirmed in the service report.
Comply with the important safety precautions
for service products whe nhandling coolant
(
Ypage 276).
The coolant is amixture of water and anti-
freeze/corrosion inhibitor. It performs the fol-
lowing tasks:
RAnti-corrosion protection
RAntifreeze protection
RRaising the boiling point
If the coolant has antifreeze protection downt o
-35 ‡(-37 †), th eboilin gpoint of th ecoolan tin
th ep ressurize dsyste misa pproximately 26 6‡
(130 †).
Service pr oduct sand filling capacities279
Technical data
Z