2012 MERCEDES-BENZ GL SUV tyre pressure

SPEEDTRONIC
Important safety notes G
WARNING
Never depress the brake peda lcontinuously
while the vehicle is in motion, e.g. never cause
the brakes to rub by applying constant slight
pedal pressure. This causes the brake system
to overheat, increases the brakin gdistance
and can lead to the brakes failing completely. G
WARNING
Do not change down for additional engine
braking on aslippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. G
WARNING
SPEEDTRONI Cisonly an aid designe dto
assis tdriving. Yo uare responsibl efor the
vehicle' sspeed and for braking in good time. G
WARNING
If there is achange of drivers, advise the new
driver of the limit speed stored.
Only use variable SPE EDTRONI Cifyou will not
have to accelerate suddenl ytoaspeed above
that stored as the limit speed. You could oth-
erwise cause an accident.
You can only exceed the limit speed stored if
you deactivate variable SPE EDTRONIC:
R using the cruise control lever
R by depressin gthe accelerator pedal
beyon dthe pressure point (kickdown)
It is not possible to deactivate variable
SPE EDTRONI Cbybraking.
General notes SPE
EDTRONIC brakes automatically so that
you do not exceed the set speed. On long and
steep downhil lgradients ,especially if the
vehicle is laden or towing atrailer, yo umust
select shift range 1,2or 3in good time. By
doing so, you will make use of the braking
effect of the engine. This relieves the load on the brake system and prevent
sthe brakes
from overheating and wearing too quickly .If
you need additional braking, depres sthe
brake pedal repeatedly rather than con tinu-
ously.
You can set avariable or permanent limit
speed:
R variable for speedlimits, e.g. in built-up
areas
R permanent for long-term speed restric-
tions, e.g. when drivin gwith winter tyres
fitted (Y page 198)
i The speed indicated in the speedometer
may differ slightly from the limit speed
stored.
Variable SPEEDTRONIC Cruise control lever
:
To activate or increase speed
; LIMi ndicato rlamp
= To activate at the current speed/last
stored speed
? To activate or reduce speed
A To switch between cruise control or DIS-
TRONIC PLUS and variable SPEEDTRONIC
B To deactivate variable SPEEDTRONIC
With the cruise control lever, you can operate
cruise control or DISTRONIC PLUS and vari-
able SPEEDTRONIC.
X To switch between variable SPEED-
TRONIC and cruise control/DISTRONIC
PLUS: press the cruise control lever in the
direction of arrow A.196
Driving systemsDriving and parking

ah
igher speed or down ;for alower
speed.
Deactivatin gvariable SPEED TRONIC G
WARNING
It is no tpossible to deactivate variable Speed-
tronic by braking. There are several ways to deactivate variable
SPEEDTRONIC:
X Briefly press the cruise control lever for-
wards :.
or
X Briefly press the cruise control lever in the
direction of arrow =.
LI Mi ndicato rlamp ;in the cruise control
lever goes out. Variable SPEEDTRONIC is
deactivated.
Cruise control or DISTRONIC PLUS is selec-
ted.
Variable SPEEDTRONIC is automatically
deactivated if:
R you depress the accelerator pedal beyond
the pressure point (kickdown), but only if
your current spee ddoes not differ by more
than 20 km /h from the stored speed. You
will hear awarning tone if this is the case.
R you activate DSR.
R you activate off-road program 2(vehicles
wit hthe ON&OFFROAD package).
i The last speed stored is cleared when you
switch off the engine. Permanent SPEEDTRONIC
You can use the on-board computer to limit
the speed permanently to avalue between
16 0k m/ h(e.g .for dri ving on winter tyres) and
the maximum speed (Y page283).
Shortly before th estore dspeed is reached, it
appear sinthe multifunction display.
Permanent SPEEDTRONIC remain sactive,
even if variabl eSPEEDTRONI Cisdeactivated.
You can note xceed the sto redl imit speed,
even if you depress the accelerator pedal
beyond the pressure point (kickdown). DISTRONIC PLUS
Importan tsafety notes G
WARNING
Do not change down for additiona lengine
braking on aslippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. G
WARNING
DISTRONIC PLU Siso nly an aid designe dto
assis tdriving. Th edrive rremain sfully respon-
sible for the vehicle's distance from other
vehicles, the vehicle's spee dand for braking
in goo dtime.
DISTRONIC PLU Sdoes not react in particular
to:
R pedestrians
R stationar yobstacles on the road, e.g. stop-
ped or parked vehicles
R oncoming and crossin gtraffic
DISTRONIC PLUS may not detect narrow vehi-
cle sdriving in front, e.g .motorcycles, or vehi-
cles driving on adifferen tline. Therefore,
always pay attention to traffic condition seven
when DISTRO NICP LUS is activated. Other-
wise ,you may fai ltorecognise danger sin
time, cause an accident and injure yourself
and others. 198
Drivin
gsystemsDrivin gand parking

G
WARNING
Th ef ront of th evehicle will veer out in the
direction of the oncoming traffic during the
parking operation. In some cases the vehic le
wil lalsot ake you onto sections of the oncom-
ing lane during the parking procedure.
You are responsibl efor safet yatall times and
must pay attention to any road users
approaching or passing. Stop the vehicle if
necessary or cancel the Activ eParking Assist
parking procedure. G
WARNING
Make sure that no persons or animals are in
the manoeuvring range. Otherwise, they
coul dbei njured.
! If unavoidable ,you should driv eover
obstacles such as kerb sslowly and not at
as har pangle .Otherwi se,you ma ydamage
the wheels or tyre s.
Activ eParking Ass isti sane lectroni cparking
aid with ultrasound. Ultrasoun disused to
mea surethe road on bothsides of th evehicle.
As uitable parking space is indicated by the
parking symbol. Activ esteering intervention
can assis tyou during parking. You ma yalso
use PARKTRONIC (Y page 216). When PARK-
TRONIC is switched off, Active Parking Assist
is also unavailable.
Use Active Parking Assist for parkin gspaces:
R that are parallel to the direction of travel
R that are on straight roads, not bends
R that are on the same level as the road, e.g.
not on the pavement
Parking tips:
R on narrow roads, driv easclosely as possi-
ble past the parkin gspace.
R parking spaces that are littered, overgrown
or partially occupied by trailer drawbars
might be identified incor rectly or not at all.
R snowfall or heavy rain may lea dtoap arking
space being measured inaccurately. R
pay attention to the PARKTRONIC
(Y page 217 )warning message sduring the
parking procedure.
R at any time, you can intervene in the steer-
ing procedure to correc tit. Active Parking
Assist will then be cancelled.
R when transporting aload which protrudes
from your vehicle, you should not use
Active Parkin gAssist.
R when snow chains or an emergenc yspare
wheel are fit ted, you should not use Active
Parking Assist here either.
R mak esure that the tyre pressures are
always correct. This has adirec tinfluence
on the parking characteristics of the vehi-
cle.
R the wa yyourv ehicle is positioned in the
parking space after parking is dependent
on various factor s. Theseinclude the posi-
tion and shape of the vehicles parked in
front and behind it and the conditions of the
location. It may be the case that Active
Parking Assist guides you too far into a
parking space, or not far enoug hinto it. In
some cases, it may also lead you across or
onto the kerb. If necessary, you should can-
cel the parking procedure with Active Park-
ing Assist.
R you can also engage forward gea rprema-
turely. Th evehicle redirects and does not
driv easf ar into the parking space. Should
ag ear be changed too earl ytoa chieve a
sensible parkin gposition ,the parkin gpro-
cedure will be cancelled.
Detectin gparking spaces :
Detected parking space on the left
; Parking symbol
= Detected parking space on the right 220
Driving systemsDri
ving and parking

No course-correctin
gbrake applicatio nor
brak eapplication adapted to the driving con-
ditions occurs if:
R there are vehicles or obstacles, e.g. crash
barriers, on both sides of your vehicle.
R av ehicle approaches too closely on the
side.
R you have adopted asport ydriving style with
high cornerin gspeeds.
R you brak eoraccelerat edecisively.
R ad riving safety system intervenes, such as
ESP ®
or PRE-SAFE ®
Brake.
R ESP ®
is deactivated.
R theO ff-roa dprogram is activated (vehicles
without th eON&O FFROAD package).
R Off-road program 1or2isactivated (vehi-
cles with the ON&OFFROAD package).
R the LOW RANGE off-road gear is activated
(vehicle swith the ON&OFFROAD package).
R al oss of tyr epressure or adefec tive tyre is
detected.
Activatin gActive Blind Spot Assist X
Make sure that the radar senso rsystem
(Y page 283 )and Active Blind Spot Assist
(Y pag e279)are activate dint he on-board
computer.
X Tur nthe key to position 2in the ignition
lock.
Warnin glamps :light up red in the exte-
rior mirrors for approximately 1.5seconds
and then tur nyellow. Towin
gatrailer
If yo uattach atrailer, make sure th at you have
corre ctly established the electrical connec-
tion. This can be accomplished by checking
the trailer lighting. Active Blind Spot Assist is
then deactivated. The indicator lamp lights up
yellow in the exterior mirrors and the Active Blind Spot Assist currently unavail‐
able Se
eOwner's Manual message
appears in th emultifunction display.
Active Lane Keeping Assist Important safety notes
G
WARNING
Active Lane Keeping Assis tdoes not keep
your vehicle in its lane. It is only an aid and
may detec tthe lan emarkings on the road
incorrectly or not at all.
The system may be impaired or may not func-
tion if:
R several or no lane markings for asingle lane
are present.
R there is poor visibility, e.g. due to insuffi-
cient illumination of the road, or due to
snow, rain, fog or spray.
R there is glare, e.g. from oncoming traffic,
the sun, or reflec tion from other vehicles.
R the windscreen is dirty, misted up or cov-
ered, for insta ncebyasticker, in the vicinity
of the camera.
R the lane markings are worn away ,dark or
covered up, e.g. by dirt or snow.
R the distance to the vehicle in front is too
small and the lane markings thus cannot be
detected.
R the lane markings on the road are unclear,
e.g. near roadworks.
R the lane markings change quickly, e.g.
lanes branch off, cross one another or
merge.
R the road is narrow and winding.
Active Lane Keeping Assis tcannot detect
road and traffic conditions. It is not asubsti-
tute for attentive driving. You are responsible Driving systems
245Drivingand pa rking
Z

If
al ane-correctin gbrake ap plication occurs,
display :appears in the multif unctio ndis-
play.
If you leave you rlane under certain circum-
stances, the vehicle wil lbrake briefl yonone
side. Thi sisdesigned to help you brin gthe
vehicle bac kinto the original lane.
Thi sfunction is available in the range between
60 km/h and 200 km/h.
Al ane-correctin gbrake ap plication can only
be made after drivin gover asolid, recognis-
able lane marking. Before this, awarning
must be emitted by means of intermittent
vibration in the steering wheel. In addition, a
lane with lane markings on both sides must
be recognised. The brake applicatio nalso
slightly reduces drivin gspeed.
i Afurther lane-correcting brake applica-
tion can only occur after you rvehicle has
returned to the original lane.
No lane-correcting brak eapplication occurs
if:
R you clear lyand actively steer, brake, or
accelerate.
R you cut the corner on ashar pbend.
R you have switched on the tur nsignal.
R ad riving safety system intervenes ,such as
ESP ®
,P RE-SAFE ®
Brake or Active Blind
Spot Assist.
R you have adopted asporty driving style with
high cornering speed sorhigh rates of
acceler ation.
R ESP ®
is deactivated.
R the transmission is not in position D.R
on vehicles with atrail ertow hitch ,the
electrical con nectio ntot he trailer has been
correctly established.
R the Off -road program is activated (vehicles
without the ON&OFFROAD package).
R Off-road program 1or2isactivate d(vehi-
cle sw ith the ON&OFFROAD package).
R the LOW RANGE off-road gear is activated
(vehicles with the ON&OFFROAD package).
R al oss of tyr epressure or adefectiv etyre
has been detected and displayed.
Active Lane Keeping Assist doe snot detect
roa dand traffic condi tions. An inappropriate
brake application ma ybeinterrupted at any
time if:
R you stee rslightly in the opposite direction.
R you switch on the turn signal.
R you clearly brake or accelerate.
Al ane- correcting bra keapplication is inter-
rupted automatically if:
R ad riving safet ysystem intervenes, such as
ESP ®
,P RE-SAFE ®
Brake or Active Blind
Spot Assist.
R lane markings can no longe rberecognised.
Activating Active Lane Keeping Assist X
Switch on Active Lan eKeeping Assist using
the on-boar dcomputer ;todoso, select
Standard or
Adaptive (Y
page 279).
Symbol :appears in the multifunction
display.
If Standard is selected, no warnin
gvibra-
tion occur sif: Dri
ving systems
247Driving and pa rking Z

Make sur
ethat the followin gvalues are not
exceeded:
R the permissible trailer drawba rnoseweight
R the permissible trailer load
R the permissible rea raxle load of the towing
vehicle
R the maximum permissible gros svehicle
weight of both the towing vehicle and the
trailer
The applicable permissible values, which
must not be exceeded, can be found:
R in the vehicle documents
R on the identification plates of the trailer tow
hitch, the trailer and the vehicle
If the values differ, the lowest value applies.
You will fin dthe values approved by the man-
ufacturer on the vehicle identification plates
and those for the towing vehicle under "Tech-
nical data "(Ypage 433).
When towing atrailer, your vehicle's handling
characteristics wil lbedifferent in comparison
to when drivin gwithout atrailer.
Th ev ehicle/ trailer combination:
R is heavier
R is restricted in its acceleration and gradi-
ent-climbin gcapability
R has an increased braking distance
R is affected more by stron gcrosswinds
R demand smore sensitive steering
R has alarger turnin gcircle
This could impair the handling charac teris-
tics. Adapt your styl eofdriving accordingly.
Maintain asafe distance. Drive carefully.
When towing atrailer, alw aysa djust your
speed to the current road and weather con-
ditions. Do not exceed the maximum permis-
sible speed for your vehicle/trailer combina-
tion.
General notes !
Use adrawbar noseweigh tasc lose as
possible to the maximum permissible nose-
weight. Do not use anoseweight of less than 50kg, otherwise the trailer ma
ycome
loose.
Not ethat the payload and the rea raxle load
are reduce dbythe actual payload.
i Chec kthe tyr epressures when towin ga
trailer. You will find the values in the tyre
pressure table in the fuel filler flap of the
vehicle (Y page 399).
You will find installation dimensions and loads
in the "Technical data" section
(Y page 432).
The maximum permissible trailer drawbar
noseweight on the ball coupling is 140 kg.
However, the actual noseweight must not
exceed the value given on the trailer tow hitch
or trailer identification plates .The lowest
weight applies.
Please not ethat when towing atrailer, PARK-
TRONIC (Y page 216) and Blind Spo tAssist
(Y page 238) ar eonly available with limita-
tions ,orn ot at all.
Driving tips i
Observ ethe information on ESP ®
trailer
stabilisation (Y page 67)and on pulling
away with atrailer. (Y page 162).
Vehicle swith the ON&OFFROAD pack-
age: select the trailer program (Y page 250)
with the off- road program selector wheel in
the centre console.
The maximum permissible spee dfor vehicle/
trailer combina tions depends on the type of
trailer .Befor ebeginning the journey, check
the trailer's document stosee what the max-
imu mpermitted speed is. Observ ethe legally
prescribed maximum speed in the relevant
country.
For cer tain Mercedes-Benz vehicles, the max-
imum permissible rear axle load is increased
when towing atrailer. See "Technica ldata" to
find out whethe rthis applies to your vehicle
(Y page 433). If you utilise any of the added
maximum rea raxle load whe ntowing atrailer,
th ev ehicle/ trailer combination may not
exceed amaximum spee dof100 km/h for 258
Towin
gatrailerDriving an dparking

Activating/deactivating Blind Spot
Assist X
Press =or; on thesteering wheel
to select the Assist. menu.
X Pres sthe 9 or: buttontos elect
Blin dSpot Asst. .
X Press the abutton.
Th ec urrent selection is displayed.
X To activate/deactivate: press thea
button again.
If the BlindSpot Assist Sensors deac‐ tivated or
Active blind spot assist. sensor system deactivated message
appears ,the radar sensor system is deacti-
vated.
X Chec kwhether or not the radar sensor sys-
tem is permitted to be activated
(Y page 433).
X Switc hont he radar sensor system
(Y page 283).
For further information about Blind Spot
Assist ,see (Y page 238).
For further information about Active Blind
Spot Assist ,see (Y page 242).
Activating/deactivating Lane Keeping
Assist X
Press =or; on the steerin gwheel
to selec tthe Assist. menu.
X Press the 9or: button to select
Lane Keep .Asst. X
Press the abutton.
Th ec urrent selection is displayed.
X Press ato confirm.
X Press :or9 to set Off ,
Standard or
Adaptive .
X Press the abutton to save the setting.
When Lane Keeping Assis torActive Lane
Keeping Assist is activated, the Ãsymbol
appears in the multifunction displa ywhen the
ignition is on. For further information about Lane Keeping
Assist
,see (Y page 240).
For further information about Active Lane
Keepin gAssist ,see (Y page 245). Service menu
In the
Serv. menu, you have the following
options:
R call up display messages in message mem-
ory (Y page 290)
R restart the tyr epressure loss warning sys-
tem (Y page 401)
R check th etyre pressure electronically
(Y page 402)
R call up service due date (Y page 365) Settings menu
Introduction In the
Settings menu, you have the following
options:
R changing the instrument cluster settings
(Y page 280)
R changing the ligh tsettings (Y page 280)
R changing the vehicle settings
(Y page 283)
R changing the auxiliary heatin gsettings
(Y page 284) Menu
sand submenus
279On-board computer and displays Z

Tyres
Display messages Possible caus
es/consequences andM Solutions
Tyre pressure
Check tyres Th
et yre pressure loss warning system ha sdetected asignif icant
loss in pressure.
Aw arning ton ealso sounds.
G WARNING
Wit htyrep ressures which are too low, there is arisk of the fol-
lowing hazards:
R they ma yburst, especiall yasthe load and vehicle speed
increase.
R they ma ywear excessively and/or unevenly, which may greatly
impair tyr etraction.
R thed riving characteristics, as well as steering and braking, may
be greatl yimpaired.
There is arisk of an accident.
X Stop the vehicle without makin gany sudden steering or braking
manoeuvres .Pay attention to the traffic conditions as you do
so.
X Secure the vehicle against rolling away (Y page 181).
X If there is aflat tyre, inspect the tyres (Y page 378).
X Check the tyre pressures and, if necessary, correct the tyre
pressure.
X Restart the tyre pressure loss warnin gsystem when the tyre
pressure is correct (Y page 401).Check tyr
epres‐ sures then restart
Run Flat Indicator Th
et yre pressure los swarning system generated adispla ymes-
sage and has not been restarted since.
X Set the cor rect tyre pressure in all four tyres.
X Restart the tyre pressure los swarning system (Y page 401). Run Flat Indica
tor inoperative Th
et yre pressure los swarning system is faulty.
X Visit aqualified specialist workshop. Tyre pressu
re will
be displayed after
driving
afew minutes Th
et yre pressure monitor is measuring the tyre pressure.
X Driv eon.
The tyre pressures appear in the multifunction display after you
have bee ndriving for afew minutes. Tyre press. moni‐
to
ri noperative Th
et yre pressure monitor is faulty.
X Visit aqualified specialist workshop. Display messages
315On-board computer and displ ays Z