2017 MERCEDES-BENZ G-Class engine

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

Charging thebattery
!
Only use battery chargers witham aximum
chargin gvoltage of 14.8 V.
GWARNING
During chargin gand jump-starting, explosive
gases can escape from th ebattery. Thereisa
ris kofane xplosion.
Particularly avoid fire, open flames, creating
sparks and smoking. Ensure there is sufficient
ventilatio nwhile chargin gand jump-starting.
Do no tlean ove rabattery.
GWARNING
Battery acid is caustic .Thereisar iskofi njury.
Avoid contac twiths kin, eyes or clothing .Do
no tinhale any battery gases.Don otlean over
th eb attery. Keep childre naway from batter-
ies. Wash away battery acid immediately with
plenty of clean wate rand seek medical atten-
tion.
GWARNING
Ad ischarged battery can freezeatt empera-
tures below freezing point. When jump-start-
ing th evehicle or chargin gthe battery, gases
can escape from th ebattery. Thereisar isko f
an explosion.
Allow th efroze nbattery to thaw out before
chargin gitorjump-starting.
!Only charge th ebattery usingt hejump-
starting connection point.
The jump-startin gconnection pointisint he
enginec ompartmen t(
Ypage 243).
XOpen thehood.
XConnect th ebattery charge rtothepositive
terminal and ground pointint hesame order
as when connecting th edonor battery in the
jump-startin gprocedure (
Ypage 243).
Keep away from fir eand open flames. Do not
lean ove rabattery. Never charge th ebattery if it
is still installed in th evehicle ,unless you use a
battery charge rwhichh as been tested and
approved by Mercedes-Benz. Abattery charger
unit specially adapted for Mercedes-Ben zvehi-
cle sand tested and approved by Mercedes-
Ben zisa vailable as an accessory. It permits the
chargin gofthebattery in its installed position.
Contac tanauthorized Mercedes-Ben zCenter
for further informatio nand availability. Read the
battery charger's operatin ginstructionsb efore
chargin gthe battery.
If th ewarning and indic
ator lamps do no
tlight up
on th einstrumen tcluste rwhen temperatures
are low, it is probably because th edischarged
battery has frozen.Int hisc asey ou may neither
jump-star tthe vehicle no rcharge th ebattery.
The servic elife of athawed-out battery may be
shorter. The starting characteristic scan be
impaired, particularly at low temperatures. Have
th et hawed-out battery checked at aqualified
specialist workshop.
Jump-starting
For th ejump-startin gprocedure, use only th ejump-startin gconnection pointint heenginec om-
partment, consisting of apositiv etermi nal and aground point.
GWARNING
Battery acid is caustic .Thereisar iskofi njury.
Avoid contac twiths kin, eyes or clothing .Donotinhale any battery gases.Don otlean ove rthe
battery. Keep childre naway from batteries .Wash away battery acid immediately withp lenty of
clean wate rand seek medical attention.
GWARNING
During chargin gand jump-starting, explosive gases can escape from th ebattery. Thereisar isk
of an explosion.
Jump-starting243
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

Towingand tow-starting
Important safety notes
GWARNING
Functions relevant to safety ar erestricted or
no longe ravailable if:
Rthe engine is not running.
Rthe brake system or the powe rsteerin gis
malfunctioning.
Rthere is amalfunctio ninthe voltag esuppl y
or the vehicle's electrical system.
If your vehicl eisbeing towed ,muchm ore
force mayben ecessary to stee rorbrake.
There is ariskofana ccident.
In such cases, us eatow bar. Before towing,
make sure thatt he steeringmoves freely.
GWARNING
Yo uc an no longe rstee rthe vehicl eifthe
steerin gwheel lock hasb eene ngaged .There
is ar iskofana ccident.
Alway sswitch off the ignition when towing the
vehicl ewithat ow cable or atow bar.
GWARNING
When towing or tow-startin ganotherv ehicle
and its weight is greate rthant he permissible
gross weight of your vehicle, the:
Rthe towing ey ecould detach itself
Rthe vehicle/trailer combinatio ncould roll-
over.
There is ariskofana ccident.
When towing or tow-startin ganotherv ehicle,
its weight shoul dnot be greate rthant he per-
missibl egross weight of your vehicle.
Detail sonthe permissibl egross vehicl eweigh t
of your vehicl ecan be found on the vehicl eide n-
tification plate (
Ypage 275).
!When DISTRONICP LUSort he HOLD func-
tio nisa ctivated ,the vehicl ebrakes automat-
icall yinc ertain situations. To avoi
ddamag etothe vehicle, deactivate
DISTRONICP LUSa nd the HOLD functio nin
the following or similar situations:
Rwhen towing the vehicle
Rin the car wash
!The vehicl ecan be towed amaximum of
30 miles (50km). The towing spee dof30mph
(50 km/h )mustn ot be exceeded.
If the vehicl ehasto be towed mor ethan
30 miles (50km), the entire vehicl emustb e
raised and transported.
!Onlys ecurethe tow cable or tow ba rtothe
towing eyes. Yo ucould otherwis edamag ethe
vehicle.
!Do not tow with sling-typ eequipment .This
could damage the vehicle.
!Do not us ethe towing ey efor recovery. This
could damage the vehicle. If in doubt, have
the vehicl erecovered using acrane.
!When towing ,pulla wa yslowly and
smoothly. If the tractiv epower is too high, the
vehicles could be damaged.
!Your vehicles is equipped with an automatic
transmission. Therefore ,you must not have
the vehicl etow-started .The transmission
mayo therwis ebedamaged .
It is better to have the vehicl etransporte dthan
to have it towed away.
If the transferc asec an be shifted into the Neu-
tral position, yo ucan tow away the vehicle.
If the transferc asec anno tbes hifted into the
Neutral position, yo ucan tow away the vehicle
with one axl eraised. Please bear the following in
mind:
Rremove the propeller shaft between the trans-
fer cas eand the rolling axle.
Rturnthe SmartKeytop osition 1in the igni-
tio nlock.
The battery must be connected and charged.
Otherwise, you:
Rcanno tturnt he SmartKeytop osition 2in
the ignition lock
Rcanno tshift the automatic transmission to
position i
Disar mthe automatic locking featur ebefor et he
vehicl eistowed (
Ypage 67).Y oucould other-
wise be locked outw henp ushing or towing the
vehicle.
246Towin gand tow-starting
Breakdow nassistance

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

The fuses in your vehicle serve to close down
faulty circuits.Ifafuse blows, all the compo-
nentsont he circuit and their functions stop
operating.
Blown fuses must be replaced with fuses of the
same rating, which you can recognize by the
color and value. The fuse ratings are listed in the fuse allocation chart (
Ypage 249).
If an ewly inserted fuse also blows, have the
cause traced and rectified at aqualified special-
ist workshop, e.g. an authorized Mercedes-Benz
Center.
!Only use fuses that have been approved for
Mercedes-Benz vehicles and which have the
correctf use rating for the system concerned.
Otherwise, components or systems could be
damaged.
!Make sure that no moisture can enter the
fuse box when the cover is open.
!When closing the cover, make sure that it is
lying correctly on the fuse box. Moisture seep-
ing in or dirt could otherwise impair the oper-
ation of the fuses.
Before changing afuse
Pay attention to the important safety notes
(Ypage 248).
XSwitch off the engine.
XSwitch off all electrical consumers.
XRemove the SmartKey from the ignition lock.
All indicator lamps in the instrument cluster
must be off.
XSecure the vehicle against rolling away
(Ypage 120).
The fuses are located in various fuse boxes:
RMain fuse box on the driver's side of the dash-
board
RFuse box in the front-passenger footwell
RFuse box in the transmission tunnel
RFuse box in the cargo compartment
The fuse allocation chart and the spare fuses are
in the fuse box on the dashboard on the front-
passenger side (
Ypage 249).
The fuse extractor is in the vehicle tool kit
(
Ypage 120).
Dashboard fuse box
!
Do not use apointed object such as ascrew-
driver to open the cover in the dashboard. You
could damage the dashboard or the cover.
XOpen the front-passenger door.
XTo open: pull cover :out in the direction of
the arrow and remove it.
XTo close: clip in cover :on the front of the
dashboard.
XFold cover :in until it engages.
Fuse box in the front-passenger foot-
well
XUnscrew screws :.
XLift up cover;in the direction of the arrow.
Fuses249
Breakdown assistance
Z

!On vehicles equipped withatire pressure
monitor, electronic componentsa re located
in the wheel.
Tire-mounting tools should not be used near
the valve. This could damage the electronic
components.
Only have tires changed at aqualified spe-
cialist workshop.
Alwayso bserve the instructionsa nd safety
notes under "Installing awheel" (
Ypage 270).
The wear patterns on the front and rear tires
differ, depending on the operating conditions.
Rotate the wheels before aclear wear pattern
has formed on the tires. Front tires typically
wear more on the shoulders and the rear tires in the center.
On vehicles that have the same size front and
rear wheels, you can rotate the wheels accord-
ing to the intervals in the tire manufacturer's
warranty book in your vehicle documents. If no
warranty book is available, the tires should be
rotated every 3,000 to 6,000 miles (5,000 to
10,000 km). Depending on tire wear, this may
be required earlier. Do not change the direction
of wheel rotation.
Cleant he contact surfaces of the wheel and the
brake disc thoroughly every time awheel is rota-
ted. Check the tire pressure and reactivate the
tire pressure monitor if necessary (
Ypage 259).
Direction of rotation
Tires with aspecified direction of rotation have
additional benefits, e.g. if there is arisk of hydro-
planing. You will only gain these benefits if the
correct direction of rotation is observed.
An arrow on the sidewall of the tire indicates its
correct direction of rotation.
You may mount the spare wheel against the
direction of rotation. Adhere to the time restric-
tion on use as well as the speed limitation speci-
fied on the spare wheel.
Storing wheels
Store tires that are not being used in acool, dry
and preferably dark place. Protect the tires from
oil, grease, gasoline and diesel.
Mounting awheel
Preparing the vehicle
GWARNING
When you remove the spare wheel from the
spare wheel bracket, the vehicle’s weight dis-
tribution changes. If the vehicle is already
raised, the jack could tip over. There is arisk
of injury.
Remove the spare wheel from the spare wheel
bracket before lifting the vehicle.
XStop the vehicle on solid, non-slippery and
level ground.
XApply the parking brake.
XBring the front wheels into the straight-ahead
position.
XShift the automatic transmission to position
P.
XSwitch off the engine.
XRemove the vehicle tools and jack from the
vehicle (Ypage 120).
XRemove the spare wheel from the spare wheel
bracket (Ypage 239).
XSafeguard the vehicle against rolling away.
Securing the vehicletop revent it from
rolling away
XPlace chocks or other suitablei tems under
the front and rear of the wheel that is diago-
nally opposite the wheel you wish to change.
Raising the vehicle
GWARNING
If you do not position the jack correctly at the
appropriate jacking point of the vehicle, the
jack could tip over with the vehicle raised.
There is arisk of injury.
Only position the jack at the appropriate jack-
ing point of the vehicle. The base of the jack
must be positioned vertically, directly under
the jacking point of the vehicle.
!Only position the jack at the appropriate
jacking point of the vehicle. Otherwise, you
could damage the vehicle.
270Changing awheel
Wheels and tires