clock reset MERCEDES-BENZ GL SUV 2012 Owners Manual

Kee
pchildr en away. Obse
rve this Owner' sManual.
For safet yreasons ,Mercedes-Ben zrecom-
mends that you only use batteries which have
been tested and approved for your vehicle by
Mercedes-Benz. These batteries provide
inc reased impact protection to preven tvehi-
cle occupant sfrom suffering aci dburns
should the batter ybedamaged in the event
of an accident.
In order for the batter ytoachieve the maxi-
mum possibl eservic elife, it must always be
sufficiently charged.
The vehicle battery, like other batteries, can
discharge over time if you do not use the
vehicle. In such cases, have the batter ydis-
connected at aqualified specialist workshop.
You can also charge the batter ywith a
charger recommended by Mercedes-Benz.
For more information ,please contact aquali-
fied specialist workshop.
Have the batter ycharge checked mor efre-
quently if yo uuse the vehicle mainl yfor short
trips or if you leav eitstanding idle for a
lengthy period .Consult aqualified specialist
workshop if you wish to leave your vehicle
parked up for along period of time.
i When you par kthe vehicle, remove the
key if you do not requir eany electrical con-
sumers .The vehicle will then use ver ylittle
energy, thus conservin gbatter ypower.
i If the power supply has been interrupted,
e.g. if the batter ywas discharged ,you will
have to:
R set the cloc k.Informatio nonsetting the
cloc kcan be found in the separate oper-
ating instructions. On vehicles with COMAND Online and a
navigation system, the clock is set auto-
matically.
R reset the function for folding the exterior
mirror sin/out automati cally, by folding
the mirror sout onc e(Ypage 11 3). Charging the battery
G
WARNING
Durin gchargin gand jump-starting, explosive
gases can escap efrom th ebattery. There is a
risk of an explosion.
Particularly avoid fire, naked flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while chargin gand jump-starting.
Do not lean over abattery. G
WARNING
Battery acid is caustic .There is arisk 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
Ad ischarged battery can freeze at tempera-
tures below freezin gpoint .When jump-start-
ing 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.
! Only use battery chargers with amaxi-
mum charging voltage of 14.8 V.
! Only charge the battery using the jump-
start connection point.
Never charge abattery still installed in the
vehicle unless abattery charger unit
approved by Mercedes-Ben zisbeing used. A
batter ycharger uni tspecially adapted for
Mercedes-Benz vehicles and tested and
approved by Mercedes-Benz is available as an 384
Battery (vehicle)Breakdown assistance

Fitting/removing th
etowing eye
Fitting th etowing eye Example: cover
sfor towin geye mountings
: Front cover
; Bac kcover
Vehicles with atrailer to whitch :ify ou intend
to use the vehicle for towing, fold out the ball
coupling (Y page 259) and con nect the tow-
bar to it.
Th eb rackets for th escrew-i ntowing eyes are
located in the bumpers. They ar eatthe front
and at the rear, under the covers.
X Remove the towing eye from the vehicle
tool kit (Y page 377).
X To ope nthe cover at the front: press the
mark on cover :inwards in th edirection
of the arrow.
X To open the cover at the rear: insert a
flat, blunt object into the cutout and lever
cover ;out of the bumper.
X Remove cover :or; from the opening.
X Screw the towing eye in clockwise to the
stop and tighten it. Removing the towing eye X
Loosen the towing eye and unscrew it.
X Attach cover :or; to the bumper and
press until it engages.
X Place the towing eye in the vehicle tool kit. Towing the vehicle with both axles on
the ground
It is important that you observe the safety
instructions when towing away your vehicle
(Y page 388).
The automatic transmission automatically
shifts to position Pwhen you open the driver's
or front-passenger door or when you remove
the key from the ignition lock.
In order to ensure that the automatic trans-
mission stays in position Nwhen towing the
vehicle, you must observe the following
points:
X Make sure that the vehicle is stationary and
that the key is in position 0in the ignition
lock.
X Turn the key to position 2in the ignition
lock.
On vehicles with KEYL ESS-GO, use the key
instead of the Start/Stop button
(Y pag e159).
X Depres sand hol dthe brake pedal.
X Shif tthe automatic transmission to posi-
tion N.
X Release the brake pedal.
X Release the electric parkin gbrake.
X Leave th ekey in position 2in the ignition
lock.
X Switch on the hazar dwarning lamps
(Y page 122).
i In order to signal achange of direction
when towing the vehicle with the hazard
warnin glamps switched on, use the com-
bination switch as usual .Inthis case ,only
the turn signals for the desired direction
flash .When you reset the combination 390
Towing and tow-startingBreakdown assistance