2012 MERCEDES-BENZ GL SUV navigation system

Displa
ymessages Possible causes/consequences and
M Solutions
Sp
eed Limit Assist
currently unavail‐
abl
eS ee Owner's Manual Spee
dLimit Assist is deactivated an dtemporarily inoperative.
Possible causes:
R the windscreen is dirt yinthe camera's field of vision.
R visibility is impaired due to heav yrain, snow or fog.
X Clea nthe windscreen.
If the system detec tsthat the camera is fully operational, the dis-
play message disappears.
Speed Limit Assist is operational again. Speed Limit
Assist
:Unavaila‐ ble in this country Spee
dLimit Assist is only available in certain countries.
X Driv eon.
Spee dLimit Assist is available again as soon as you drive in a
countr yinwhich its use is approved. Speed Limit Assist
inoperative Speed Limi
tAssist is faulty.
X Visit aqualified specialist workshop. ë
Off The HOLD function is deactivated. The vehicle is skidding.
Aw
arning ton ealso sounds.
X Reactivat ethe HOL Dfunction later (Y page 211). Ra
dars ensor deac‐ tivate
dSee Own‐ er'
sM anual Th
er adar sensor system is deactivated.
X Check whether or not the radar sensor system ma ybeactivated
(Y pag e433).
X Switch on the rada rsensor system (Y page 283). Rada
rsensor deac‐ tivated autom. See
Owner's Manual Vehicles with
anavigation system: the vehicle is close to aradio
telescop efacility and is therefore prohibite dfrom transmitting any
radar signals .The radar sensor system has switched off automat-
ically (Y page 433).
If DI STRONIC PLUS was enabled, it is no longe ravail able. Aw arn-
ing ton ealso sounds.
If Blin dSpotA ssist or Ac tiveBlind Spo tAssist was enabled, it is
no longe ravailable .The yellow 9indicator lamps also light up
in the exterior mirrors.
BA SP LUS (Brake Assist PLUS) and PRE-SAFE ®
Brak eare then also
no longe ravailable.
X Drive on.
Once yo uhave moved far enough awa yfrom th eradio telescope,
the above function sare avai lable again. 310
Display messagesOn-board computer and displays

Problem Possible causes/consequences and
M Solutions
!
The yellow AB
Swarning
lamp is lit while the
engine is running. ABS (Anti-lock Brake System) has been deactivated due to
afault.
For this reason, BAS (Brake Assist), BAS PLUS, ESP ®
(Electronic
Stability Program), PRE-SAFE ®
,P RE-SAFE ®
Brake, COLLISION
PREVENTION ASSIST, the HOLD function, hill start assist, cross-
wind driving assistance, adaptive brake lights and ESP ®
trailer
stabilisation, for example, are also deactivated.
ATTENTION ASSIST is deactivated.
G WARNING
The brake syste mcontinue stofunction normally, but without the
functions listed above. The wheel scould therefor elock if you
brake hard ,for example.
The steerabilit yand braking characteris tics may be severely affec-
ted .The brakin gdistance in an emergenc ybraking situatio ncan
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilis ethe vehicle.
The danger of skidding and having an accident increases.
X Observ ethe additiona ldisplay messages in the multifunction
display.
X Driv eonc arefully.
X Visit aqualified specialist workshop.
If the ABS control unit is faulty, there is also apossibility that other
systems, such as the navigation system or the automatic trans-
mission ,will not be available. Warning and indicator lamp
sinthe instrument cluster
327On-board computer and displays Z

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

Trailer loads
Al
lm odels (except
AMG vehicles) Permissible trailer loa
d, unbraked 75
0kg Permissible trailer load, bra
ked(at am inimu mgradie nt-
climbin gcapability of 12 %fromas tandstill) 3500 kg
Maximum drawbar noseweight (the drawbar nose-
weight is no tincluded in th etrai ler load) 14
0kg Permissible rea
raxle loa dwhen towing atrailer 1900 kg
AMG vehicles
Permissible trailer loa
d, unbraked 75
0kg Permissible trailer load, bra
ked(at am inimu mgradie nt-
climbin gcapability of 12 %fromas tandstill) 3050 kg
Maximum drawbar noseweight (the drawbar nose-
weight is no tincluded in th etrai ler load) 14
0kg Permissible rea
raxle loa dwhen towing atrailer 1750 kg
24 GHz radar sensor system
Th e24G Hz radar sensor sys temr equires separate approval for each country. If you are driving
in ac oun tryinw hichthe radar sensor system is not approved ,you must deactivate the system
using the on-boar dcomputer (Y page 283).
The curren tcount ryoverview can be obtained from aMercedes-Ben zService Cent reor in the
In te rnet under: ht tp://www.mercedes-benz.de/betriebsanleitung.
Vehicle swithanavigation system: the radar sensor system is deactivated automatically
near radio tele scope facilities. Adisplay message appears in the multifunction display to tell
you that the radar sensor system is being switched off (Y page 310).
The cur rently active sys temsare automatically deactivated:
R DISTRONIC PLUS (Y page 198)
R Blin dSpot Assist (Y page 238)
R Activ eBlindS pot Assist (Y page 242)
R BA SP LUS (Y page 62)
R PRE-SAFE ®
Brake (Y page 68)
If th edeactiva tion does not occur automatically ,you must deactiva tethe radar sensor system
using the on-board computer (Y page 283). 24 GHz rada
rsensor system
433Technicaldata Z