2016 MERCEDES-BENZ G-CLASS SUV check engine light

The bonnet release lever is in the footwell on the
left-hand side of the vehicle when viewed in the
direction of travel.
X Make sure that the windscreen wipers are
switched off.
X Pull bonnet release lever :.
The bonnet is released. X
Lift the bonnet slightly.
X Push bonnet catch ;in the direction of the
arrow and lift the bonnet.
The bonnet is opened and held open auto-
matically by the gas-filled strut.
Closing the bonnet X
Lower the bonnet and let it fall from aheight
of approximately 20 cm.
X Check that the bonnet has engaged properly.
If the bonnet can be raiseds lightly, it is not
properl yengaged .Open it again and close it
with alittle more force. Radiator
Do not cover up the radiator. Do not use thermal mats, insect protection covers or anything sim-
ilar. Otherwise, the valuesoft he Europeanon-
board diagnostics may be affected .Some of
thes evalue sare required by la wand must
always be correct. Engine oil
Importan tsafety notes G
WARNING
Certain components in th eengine compart-
ment coul dbevery hot, e.g. the engine, the radiator and parts of the exhaust system.
There is
arisk of injury when accessing the
engine compartment.
As far as possible, allow the engine to cool
down and only touch the components descri- bed in the following. G
WARNING
There are moving components in the engine
compartment. Certain components may con-
tinue to move or suddenly move again even
after the ignitio nhas been switched off, e.g.
the radiator fan. There is arisk of injury.
If you have to carry out work in the engine
compartment:
R switch off the ignition
R never touch the dangerous area ssurround-
ing moving components, e.g. the rotation
area of the fan
R remove jewellery and watches
R keep items of clothing and hair, for exam-
ple,a wayfrom moving parts. G
WARNING
If engine oil comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is arisk of fire and injury.
Make sure that engine oil does not spil lout
over the filler neck. Allow the engine to cool
downa nd thoroughly clea nthe components
that have come into contact with engine oil
before you start the engine. G
WARNING
If you open the bonnet while the engine is
overheating or while there is afire in the
engine compartment, you coul dcome into
contact with hot gase sorother leaking ser-
vice products. There is adange rofinjury.
Allow an overheating engine to cool down
before opening the bonnet. If there is afire in
the engine compartment, leave the bonnet
closed and notify the fire brigade. 212
Engine compartmentMaintenanc
eand care

Removin
gthe spare wheel The spare wheel is heavy. Observ
ethis when
removing the spare wheel.
X Remove wheel nuts :.
X Remove the spare wheel.
Fitting the wheel After changing
awheel:
X Secure the damaged whee lonthe spare
whee lbracket with whee lnuts :.W hen
doing so, make sure tha tthe whee lcannot
come loose.
X Cover the whee lwitht he tyr eprotection
cover.
X For safety reasons ,regularly check to ensure
tha tthe whee lissecurel yfastened. Flat tyre
Preparing the vehicle
X Sto pthe vehicle as far away as possible from
traffic on solid, non-slippery and level ground.
X Switch on the hazard warning lamps.
X Secure the vehicle against rolling away
(Y page 113).
X If possible, bring the front wheels into the
straight-ahead position.
X Switch off the engine.
X Remove the key from the ignition lock.
The steering wheel lock is active as soon as
the key is removed.
X Make sure that the passengers are not endan-
gered as they get out of the vehicle. Make
sure that no one is near the danger area while
aw heel is being changed. Anyone who is not directly assisting in the wheel change should,
for example, stand behind the barrier.
X Get out of the vehicle. Pay attention to traffic
condition swhen doing so.
X Close the driver' sdoor.
X Place the warning triangle asuitable distance
away (Y page 222). Observe legal require-
ments. Batter
y(vehicle) Importan
tsafety notes
Wor kont hebattery, e.g. removing or fitting,
require sspecialist knowledge and th euse of
special tools. Therefore, always have wor kon
th eb attery carrie dout at aqualified specialist
workshop. G
WARNING
Work carried ou tincorrectly on the battery
can lead, for example, to ashort circui tand
thus damage the vehicl eelectronics. This can
leadtof unction restrictions applying to
safety-relevant systems ,e.g the lighting sys-
tem, the ABS (anti-lock braking system) or the
ESP ®
(Electronic Stability Program). The oper-
ating safety of yourv ehiclemay be restricted.
You coul dlose control of the vehicle, for
example:
R when braking
R in the event of abrupt steering manoeuvres
and/or when the vehicle's spee disnot
adapted to the road conditions
There is arisk of an accident.
In the event of ashort circui torasimilar inci-
dent, contact aqualified specialist workshop
immediately. Do not drive any further. Always have work on the battery carrie dout at a
qualified specialist workshop.
Further information about ABS (Y page52) and
ESP ®
(Y page5 4). G
WARNING
Electrostatic build-u pcan leadtot he creation
of sparks, which coul dignite the highly explo- 224
Battery (vehicle)Breakdown assistance

permit
schargin gofthe battery while it is fitted.
Contact aMercedes-Benz Service Centr efor
information and availability. Read the battery
charger's operatin ginstructions before charg-
ing the battery.
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
jump-start the vehicle nor charge the battery.
The servic elife of abattery that has been
thawed may be reduced. The starting charac-
teristics may be impaired, especially at low tem- peratures. Have the thawed battery checked at
aq ualified specialist workshop. Jump-starting
For the jump-starting procedure, use only the jump-starting connection point, consisting of apos-
itive terminal and an earth point, in the engine compartment. G
WARNING
Batterya cid is caustic. There is arisk of injury.
Avoid contact with the skin, eyesorc lothing. Do not breathe in any battery gases. Do not leano ver
the battery .Keep the batterie sout of the reach of children. Immediately rinse off battery acid
thoroughly with plenty of clea nwaterand seek medical attention at once. G
WARNING
During charging and jump-starting, explosive gase scan escap efrom the battery .There is arisk
of an explosion.
Particularl yavoidfire, naked flames, creating sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting. Do not leano verabattery. G
WARNING
During the charging process ,abattery produces hydrogen gas. If ashort circui toccurs or sparks
are created ,the hydrogen gas can ignite. There is arisk of an explosion.
R Make sure that the positive terminal of aconnected battery does not come into contact with
vehicl eparts.
R Never place metal objects or tools on abattery.
R It is important that you observe the described order of the battery terminal swhen connecting
and disconnecting abattery.
R When jump-starting, make sure that the battery pole swith identical polarity are connected.
R It is particularl yimportant to observe the described order when connecting and disconnecting
the jump leads.
R Never connect or disconnect the battery terminal swhile the engine is running. G
WARNING
Ad ischarged battery can freeze at temperatures below freezing point. When jump-starting the
vehicl eorcharging the battery ,gase scan escap efrom the battery .There is arisk of an explosion.
Allow the frozen battery to thaw out before charging it or jump-starting.
If the warning and indicator lamp sdonot light up on the instrument cluster when temperatures are
low,itisp robably because the discharged battery has frozen. In this case, you may neither jump-
start the vehicl enor charge the battery .The service life of abattery that has been thawe dmay be Jump-starting
227Breakdown assistance Z

reduced. The starting characteristics may be impaired, especially at low temperatures. Have the
thawe dbattery checked at aqualified specialist workshop.
Do not use arapidc harging device to start the vehicle. If yourv ehicle's battery is discharged, the
engine can be jump-started from another vehicl eorfromasecond battery using jump leads.
Observe the following points:
R The battery is not accessible in all vehicles. If the other vehicle's battery is not accessible, jump-
start the vehicl eusing adonor battery or ajump-starting device.
R Do not start the engine if the battery is frozen. Let the battery thaw first.
R Jump-starting may be performe donly using batterie swithanominal voltag eof12V.
R Use only jump leads that have asufficient cross-section and insulated terminal clamps.
R If the battery is full ydischarged, leave the battery that is being used to jump-start connected for
af ew minutes before attempting to start. This charge sthe empty battery alittle.
R Make sure that the two vehicles do not touch.
Make sure that:
R The jump leads are not damaged.
R Non-insulated parts of the terminal clamp sdonot come into contact with other metal parts while
the jump leads are connected to the battery.
R The jump leads cannot come into contact with parts that can move when the engine is running,
such as the V-belt pulley or the fan.
X Apply the parking brake.
X Shift the automatic transmission to position P.
X Make sure that the ignitio nisswitched off. All indicator lamp sonthe instrument cluster must be
off.
X Switch off all electrica lconsumers, e.g. rear windo wheating, lighting etc.
X Open the bonnet. Position number
Bidentifies the charged battery of the other vehicle or an equivalent jump-starting
device.
The jump-startin gconnection point consists of contacts ;and =. 228
Jump-startingBreakdowna
ssistan ce