2017 MERCEDES-BENZ G-Class jump cable

Familiarize yourself with the characteristics of
your vehicle and the gearshift operation before
driving through difficult terrain.
The following driving systems are specially
adapted to off-roadd riving:
R4ETS (Ypage 59)
ROff-roadABS (Ypage 58)
RTransfer case (Ypage 145)
RDifferentia llocks (Ypage 120)
Observe the following notes:
RStop the vehicle before yo udrive off-roada nd,
if necessary ,shift the transfe rcase to the off-
roadd riving position LOW RANGE
(
Ypage 146).
REngag ethe differential locks if necessary
(Ypage 148).
iABS, 4ETS, ESP®and BAS are deactivated
while the differential locks are engaged.T his
allow sthe front wheels to lock briefly, so that
these can dig into aloose surface .However,
please note that locke dwheels skid and can
no longer steer.
RCheck that items of luggage and loads are
stowed safely and are well secured
(
Ypage 209).
RTo avoid damaging the vehicle, make sure
there is always sufficient ground clearance.
RAlway skeep the engine running and in gear
whe ndriving on adownhil lgradient.
RAlway skeep the engine running and in gear
whe ndriving downani ncline.
RDrive slowlyand evenly, if necessary at a
walking pace.
REnsure that the wheels are in contact with the
ground at al ltimes.
RDrive with extreme care on unfamilia roff-road
routes where visibility is poor. For safety rea-
sons, get ou

tofthe vehicle firs tand survey
the off-roadr oute.
RCheck the depth of water before fording rivers
and streams.
RWatch outfor obstacles.
RAlwayskeep the doors, reard oor, sidewin-
dowsa nd the sliding sunroof closed while the
vehicle is in motion.
RSwitch off cruise control.
RDo not deviate from marke droutes.
RAdap tyou rspeed to the terrain. The rougher,
steeper or more ruts on the terrain, the slower
your speed should be.
RDo not jump with the vehicle. as this will inter-
rup tthe vehicle' spropulsion.
RAvoid hig hengine speeds .Drive at appropri-
ate engine speeds (maximu m3,000 rpm).
RDo not shift the automatic transmission to
position N.
RAlwayscheck the vehicle for damag eafteroff-
roadd riving.
Do not use the HOLD function whe ndriving off-
road, on steep uphil lordownhil lgradients or on
slippery or loose surfaces. The HOLD function
cannot holdt he vehicle on such surfaces.
You can obtain further information aboutr etro-
fitting specia lall-terrain tires from aquali fied
specialist workshop.
Checklist before driving off-road
!If the engine oil warning lamp lights up while
the vehicle is in motion, stop the vehicle in a
saf ep lace as soona spossible. Check the
engine oil level. The engine oil warning lamp
warning mus tnot be ignored.C ontinuing the
journey while the symbol is displaye dcould
lea dtoe ngine damage.
XEngin eoillevel: check the engine oil level
and ad doil if necessary.
Whend riving on steep gradients, the engine
oil level mus tbes ufficiently hig htoensure a
correct oil supply in the vehicle.
XTire-changing too lkit: check that the jack is
working and make sur eyou hav ethe lug
wrench, arobust tow cable and afolding
spade in the vehicle.
XWheels and tires: check the tire treadd epth
and tire pressure.
XCheck for damag eand remove any foreign
objects, e.g. small stones,f rom the wheels/
tires.
XReplace any missing valve caps.
XReplace dente dordamaged wheels .Also
check the spare wheel.
XRims: dentedorbent rims can result in aloss
of tire pressure and damag ethe tire bead.
Befored riving off-road, check the wheels and
replace them if necessary.
128Drivin gtips
Drivin gand parking

XClose thedriver' sdoor.
XPlacet hewarning triang leas uitable dist ance
away (Ypage 238). Observ elegal require-
ments.
Battery (vehicle)
Important safety notes
Spe cial tools and expertk nowledg eare required
when working on th ebattery, e.g .removal and
installation. You should therefor ehave all work
involving th ebattery carried out at aqualified
specialist workshop.
GWARNING
Workc arried out incorrect lyon th ebattery
can lead, for example ,toashort circuit and
thus damag ethe veh icle electronics .This can
lead to function restrictionsa pplyingto
safety-relevan tsystems ,e.g th elighting sys-
tem, th eABS (anti-lockb raking system) or the
ESP
®(Electron ic Stabilit yProgram). The oper-
atin gsafety of your veh iclemay berestricted.
You could lose control of th evehicle ,for
example:
Rwhen braking
Rin thee vent of abrupt steering maneuvers
and/or when th evehicle 's speedisn ot
adapted to th eroad conditions
Thereisar iskofana cciden t.
In thee vent of ashort circuit or asimilar inci-
dent, contact aqualified specialist workshop
immediately. Do no tdrivea ny further. You
should have all work involving th ebattery car-
ried out at aqualified specialist workshop.
For further informatio nabout AB Sand ESP
®,
see (Ypage 57) and (Ypage 59).
GWAR NING
Electrostat icbuild-up can lead to th ecreation
of sparks ,whichc ouldignite th ehighly explo-
siveg ases of abattery. Thereisar iskofa n
explos ion.
Before handlin gthe battery, touch th evehicle
body to remove any existing electrostatic
build- up. The highly flammable gas mixtur
eforms when
chargin gthe battery as wellas when jump-start-
ing.
Always mak esure that neither you no rthe bat-
tery is electrostatic allycharge d.Ab uild-up of
electrostatic charge can becaused, for exam-
ple:
Rby wearin gclothing made from synthetic
fibe rs
Rdue to friction between clothing and seats
Rif you push or pull th ebattery across th ecar-
pet or other synthetic materials
Rif you rub th ebattery withac loth
GWARNING
During th echargin gprocess, abattery produ-
ces hydrogen gas. If ashort circuit occur sor
sparks are created, th ehydrogen gas can
ignite .Thereisar iskofane xplosion.
RMakes ure that th epositiv etermi nal of a
connected battery does no tcom eintoc on-
tac twithv ehicle parts.
RNever placem etal objectsortoolson abat-
tery.
RIt is important that you observ ethe descri-
bed order of th ebattery terminal swhen
connecting and disconnecting abattery.
RWhen jump-starting, mak esure that the
battery poles withidentical polarity are
connected.
RIt is particularly important to observ ethe
describe dorder when connecting and dis-
connecting th ejumper cables.
RNever connect or disconnect th ebattery
terminal swhile th eengineisr unning.
GWARNING
Battery acid iscaustic .Thereisar iskofi njury.
Avoid contact withskin, eyes or clothing .Do
no tinhale any battery gases.Don otlean over
th eb attery. Keep ch ildren away from batter-
ies. Wash away battery acid immediately with
plenty of clean wate rand seek medical atten-
tion.
Battery (vehicle)241
Breakdown assistance
Z

Particularly avoid fire, open flames, creatingsparks and smoking. Ensure there is sufficient ven-
tilation while charging and jump-starting. Do not lean over abattery.
GWARNING
During the charging process, abattery produces hydrogen gas. If ashort circuit occurs or sparks
are created, the hydrogen gas can ignite. There is arisk of an explosion.
RMake sure that the positive terminal of aconnected battery does not come into contact with
vehicle parts.
RNever place metal object sortools on abattery.
RIt is importan tthat you observe the described order of the battery terminals when connecting
and disconnectin gabattery.
RWhen jump-starting, make sure that the battery poles with identical polarity are connected.
RIt is particularly importan ttoobserve the described order when connectin gand disconnecting
the jumper cables.
RNever connect or disconnect the battery terminals while the engine is running.
GWARNING
Ad ischarged battery can freeze at temperatures below freezin gpoint. When jump-starting the
vehicle or charging the battery, gases can escape from the battery. There is arisk of an explosion.
Allow the frozen battery to thaw out before charging it or jump-starting.
!Avoid repeated and lengthy starting attempts. Otherwise, the catalytic converter could be
damaged by the non-combusted fuel.
If the warning and indicator lamps do not light up on the instrument cluster when temperatures are
low, it is probably because the discharged battery has frozen. In this case, you may neither charge
the battery nor jump-start the vehicle. The service life of athawed-out battery may be shorter .The
starting characteristics can be impaired, particularly at low temperatures. Have the thawed-out
battery checked at aqualified specialist workshop.
Do not start the vehicle using arapid charging device. If your vehicle's battery is discharged, the
engine can be jump-started from another vehicle or from asecond battery using jumper cables.
Observe the following points:
RThe battery is not accessible in all vehicles. If the other vehicle's battery is not accessible, jump-
start the vehicle using asecond battery or ajump-starting device.
RYou may only jump-start the vehicle when the engine and exhaust system are cold.
RDo not start the engine if the battery is frozen. Let the battery thaw first.
RJump-starting may be performed only using batteries with anominal voltage of 12 V.
ROnly use jumper cables which have asufficient cross-section and insulated terminal clamps.
RIf the battery is fully discharged, leave the battery that is being used to jump-start connected for
afew minutes before attempting to start .This charges the battery slightly.
RMake sure that the two vehicles do not touch.
Make sure that:
Rthe jumper cables are not damaged.
Rwhen the jumper cables are connected to the battery, uninsulated sections of the terminal clamp
do not come into contact with other metal sections.
Rthe jumper cables cannot come into contact with parts which can move when the engine is
running, such as the V-belt pulley or the fan.
244Jump-starting
Breakdown assistance

XApply the parking brake.
XShift the automatic transmission to positionP.
XMake sure thatthe ignition is switched off. All indicator lamps in the instrument cluster must be
off.
XSwitch off al lelectrical consumers, e.g .rea rw indo wd efroster, lighting, etc.
XOpe nthe hood.
Position number Bidentifie sthe chargedb attery of the otherv ehicleorane quivalent jump-starting
device.
The jump-starting connectio npoint consists of contacts ;and =.
XLiftu pc over :of positive terminal ;in the direction of the arrow.
XConnect positive terminal ;on your vehicl etopositive terminal ?of donor battery Busing the
jumpe rcable .Alway sbegin with positive terminal ;on your ownv ehiclefirst.
XStar tthe engine of the donor vehicl eand runitati dlingspeed.
XConnect negative terminal Aof donor battery Bto ground point =of your vehicl eusing the
jumpe rcable ,connecting the jumpe rcable to donor battery Bfirst.
XStar tthe engine.
XBefore disconnecting the jumpe rcables, le tthe engine runf or severalminutes.
XFirst, remove the jumpe rcable sfrom ground point =and negative terminal A,then from pos-
itive clamp ;and positive terminal ?.Begin each time at the contacts on your ownv ehiclefirst.
XClose cover :of positive terminal ;afte rremoving the jumpe rcables.
XHav ethe battery checked at aquali fied specialist workshop.
Jump-starting is not considered to be anormalo perating condition.
iJumpe rcable sand furtheri nformationregarding jump-starting can be obtained at any qualified
specialist workshop.
Jump-starting245
Breakdo wn assis tance
Z

The towing eyes can be used to pull the vehicle
ontoatrailer or transporter if you wish to trans-
port it.
XTurn the SmartKey to position 2in the igni-
tion lock.
XShift the transfer case to position Neutral
(Ypage 147).
XShift the automatic transmission to position
N .
As soon as the vehicle has been loaded:
XApply the parking brake.
XShift the automatic transmission to posi-
tion P.
XTurn the SmartKey to position uin the igni-
tion lock and remove it.
XSecure the vehicle.
Recovering avehicle thath as become
stuck
!
When recovering avehicle that has become
stuck ,pull it as smoothly and evenly as pos-
sible. Excessive tractive power could damage
the vehicles.
If the drive wheels have become stuck in loose
or muddy ground, pull the vehicle out with
extreme caution, especially so if the vehicle is
loaded.
Never attempt to recover astuck vehicle with a
trailer attached.
Pull out the vehicle backwards, if possible using the track sitmade when it became stuck.
Towing in the event of malfunctions
General notes
!If you are removing the propeller shaft, use
M10 nuts as spacers on the M8 bolts and
secure them with M8 nuts.
New self-locking nuts must be used when the
propeller shafts are refitted.
It is important that you observe the safety
instructions when towing away your vehicle
(
Ypage 246).
iConsult an authorized Mercedes-Benz Cen-
ter.
In the event of damage to the engine,
transmission or electrical system
XShift the transfer case to neutral
(Ypage 147).
XShift the automatic transmission to position
N .
In the event of damage to the transfer
case
Have the propeller shafts between the axles and
the transfer case removed.
In the event of damage to the front axle
Have the propeller shaft between the rear axle
and the transfer case removed.
Then have the vehicle towed away with the front
axle raised.
In the event of damage to the rear axle
Have the propeller shaft between the front axle
and the transfer case removed.
Then have the vehicle towed with the rear axle
raised and wheel rollers under the front axle.
Tow-starting (emergency engine
starting)
!
Vehicles with automatic transmission must
not be tow-started. You could otherwise dam-
age the automatic transmission.
You can find information on "Jump-starting"
under (
Ypage 243).
Fuses
Important safety notes
GWARNING
If you manipulate or bridge afaulty fuse or if
you replace it with afuse with ahigher amper-
age, the electric cables could be overloaded.
This could result in afire. There is arisk of an
accident and injury.
Always replace faulty fuses with the specified
new fuses having the correcta mperage.
248Fuses
Breakdown assistance