2013 MERCEDES-BENZ G-CLASS SUV set clock

X
Turn the SmartKey to position
2 (Y page 139) in the ignition lock.
X To activate: press the 0064 button.
The indicator lamp in
the 0064 button lights
up.
The climate control system switches to the
following functions:
R cooling with air dehumidification (only
with engine running)
R high airflow (depending on the outside
temperature)
R high temperature (depending on the
outside temperature)
R air distribution to the windshield and
front side windows
R air-recirculation mode off
X To deactivate: press the 0064 button.
The indicator lamp in

the 0064 button goes
out. The previously selected settings are
restored. The cooling with air
dehumidification function remains on. Air-
recirculation mode remains deactivated.
or
X Press the 0058 button.
The indicator lamp in

the 0064 button goes
out. Airflow and air distribution are set to
automatic mode.
or
X Turn controls 0043 or 0084 clockwise or
counter-clockwise ( Y page 119).
or
X Press the 0097 or 0095 button. Activating/deactivating MAX COOL
maximum cooling
The MAX COOL function is only available in
vehicles for the USA. MAX COOL is only operational when the
engine is running.
X
To activate: press the 00C9 button.
The indicator lamp in the button lights up.
X To activate: press off-road button 00C9
again.
The indicator lamp goes

out. The previously
selected settings are restored.
When you activate MAX COOL, climate
control switches to the following functions:
R maximum cooling
R maximum airflow
R air-recirculation mode on Defrosting the windows
Windows fogged up on the inside X
Activate the 0056 cooling with air
dehumidification function.
X Activate automatic mode 0058.
X If the windows continue to fog up, activate
the defrosting function (Y page 131).
i You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside X
Switch on the windshield wipers
(Y page 114).
X Press the 008F button repeatedly until the
009C or 009B symbol appears in the
display. 132
Operating the climate control systems
Climate control

Displays and operation
Instrument cluster
Instrument cluster: miles
0043
Speedometer with segments (Y page 210)
0044 Multifunction display ( Y page 212)
0087 Tachometer (Y page 210)
0085 Coolant temperature ( Y page 209)
0083 Fuel gauge
0084 Instrument cluster lighting (Y page 209) Instrument lighting
The lighting in the instrument cluster, in the
displays and the controls in the vehicle
interior can be adjusted
using the brightness
control knob.
The brightness control knob is located on the
bottom left of the instrument cluster
(Y page 209).
X Turn the brightness control knob clockwise
or counter-clockwise.
If the light switch is set to 0058, 0060 or
0058, the brightness is dependent upon
the brightness of the ambient light.
i The light sensor
in

the instrument cluster
automatically controls the brightness of
the multifunction display. In daylight, the displays in the instrument
cluster are not illuminated.
Displaying the coolant temperature
G
WARNING
Driving when your engine is overheated can
cause some fluids which

may have leaked into
the engine compartment to catch fire. You
could be seriously burned.
Steam from an overheated engine can cause
serious burns which can occur just by opening
the engine hood. Stay away from the engine
if you see or hear steam coming from it.
Stop the vehicle in a safe location away from
other traffic. Turn off the engine, get out of the Displays and operation
209
On-board computer and displays
Z

suffering acid burns should the battery be
damaged in the event of an accident.
Have the battery charge level checked more
frequently if you use the vehicle mainly for
short trips or if you leave it standing idle for
a lengthy period.
Consult
a qualified specialist
workshop if you wish to leave your vehicle
parked up for a long period of time.
i Remove the SmartKey if you park the
vehicle and do not require any electrical
consumers. The vehicle will then use very
little energy, thus conserving battery
power.
i If the power supply has been interrupted,
e.g. due to a discharged battery, you will
have to:
R set the clock. Information on setting the
clock can be found in the separate
operating instructions.
On vehicles with COMAND and a
navigation system, the clock is set
automatically.
R reset the head restraints on the front
seats (Y page 87).
R reset the function for folding the exterior
mirrors in/out automatically, by folding
the mirrors out once ( Y page 93).Charging the battery
G
WARNING
During charging and jump-starting, explosive
gases can escape from

the battery. There is a
risk of an explosion.
Particularly avoid fire, naked flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting.
Do not lean over a battery. G
WARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with the

skin, eyes or clothing.
Do not inhale any battery gases. Do not lean
over the battery. Keep children away from batteries. Wash battery acid immediately with
water and seek medical attention.
G
WARNING
A discharged battery can freeze at
temperatures below freezing point. When
jump-starting the vehicle or charging the
battery, gases can escape from the battery.
There is a risk of an explosion.
Allow the frozen battery to thaw out before
charging it or jump-starting.
! Only use battery chargers with a
maximum charging voltage of 14.8 V.
! Only charge the battery using the jump-
starting connection point.
Never charge a battery still installed in the
vehicle unless a battery charger unit
approved by Mercedes-Benz is being used.
A battery charger unit specially adapted for
Mercedes-Benz vehicles and tested and
approved by Mercedes-Benz is

available as an
accessory. It permits the charging of the
battery in its installed position. Contact an
authorized Mercedes-Benz Center for
information and availability. Charge the
battery in accordance with the separate
instructions for the battery charger.
The jump-starting connection point is in the
engine compartment (Y page 308).
Read the battery charger's operating
instructions before charging the battery.
X Open the hood (Y page 289).
X Connect the battery charger to the positive
terminal and ground point in the same
order as when connecting the donor
battery in the jump-starting procedure
(Y page 308). Battery (vehicle)
307
Breakdown assistance Z

X
Assemble the pump lever for the jack. It can
be found with the vehicle tool kit
(Y page 302). X
Turn pressure release screw 0087 clockwise
as far as it will go using notch 0044 on the
pump lever.
Pressure release screw 0087 is closed.
i Do not turn
pressure
release screw 0087 by
more than one to two revolutions.
Otherwise, hydraulic fluid could escape. X
Set jack 0043 on solid ground.
X Position jack 0043 on the axle carrier
tube 0044 of the front or rear axle. Jack 0043
must always stand vertically, even on
slopes.
Make sure that jack 0043 is correctly
positioned under axle carrier tube 0044. The
front or rear axle must sit securely in the
recess of jack 0043.
X Raise the vehicle by pumping in the
direction of the arrow, until the tire is a
maximum of 1.2 in (3 cm ) off the ground.Removing a wheel !
Do not place wheel bolts in sand or on a
dirty surface. The bolt and wheel hub
threads could otherwise be

damaged when
you screw them in.
X Unscrew the wheel bolts.
X Remove the wheel.
Mounting a new wheel G
WARNING
Always replace wheel bolts that are damaged
or rusted.
Never oil or grease wheel bolts. This could
cause the bolts to loosen in the wheel hub. G
WARNING
Always replace wheel bolts that are damaged
or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be
repaired immediately. Do not continue to
drive under these circumstances! Contact an
authorized Mercedes-Benz Center or call
Roadside Assistance.
Incorrect wheel bolts or

improperly tightened
wheel bolts can cause the wheel to come off.
This could cause an accident. Make sure to
use the correct wheel bolts. G
WARNING
Only use genuine Mercedes-Benz wheel bolts.
Other wheel bolts may come loose.
Do not tighten the wheel bolts when the
vehicle is raised. Otherwise,

the vehicle could
fall off the jack.
! To prevent damage to the paintwork, hold
the wheel securely against the wheel hub
while screwing in the first wheel bolt.
Always pay attention to the instructions and
safety notes in the "Changing a wheel"
section ( Y page 340). Changing a wheel
343
Wheels and tires Z