2012 MERCEDES-BENZ GL SUV sensor

Displa
ymessages Possible causes/consequences and
M Solutions
Wa
rning tyre defect Th
et yrep ressur eino neormore tyre shas dropped suddenly. The
wheel position is displayed in the multifunc tion display.
G WARNING
If you drive with aflat tyre, there is arisk of the following hazards:
R Af lat tyre affect sthe ability to steer or brake the vehicle.
R You could lose con trol of the vehicle.
R Continue ddriving wit haflat tyre will cause excessive heat build-
up and possibly afire.
There is arisk of an accident.
X Stop the vehicle without makin gany sudden steerin gorbraking
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).Rectif
ytyre pres‐ sure Th
et yre pressure is too low in at leas tone of the tyres, or the tyre
pressure difference between the wheels is too great.
X Check the tyre pressures at the next opportunity
(Y pag e402).
X If necessary, corre ctthe tyre pressure.
X Restart the tyre pressure monitor (Y page 403).Wheel sensor(s)
missing There is no signal from the tyre pressure sensor of one or several
wheels. The pressure of the affected tyre is not displayed in the
multifunction display.
X
Have the faulty tyre pressure sensor replaced at aqualified spe-
cialist workshop. Tyre press. moni‐
to
rc urrently unavailable Due to
asource of radio interference, no signal scan be received
from the wheel sensors. The tyre pressure monitor is temporarily
malfunc tioning.
X Drive on.
The tyr epressure monitor restarts automaticall yassoon as the
problem has been solved. Displa
ymessages
317On-board compu tera nd displays Z

X
Clean the plastic lenses of the exterior
lighting using awet sponge and amild
cleanin gagent, e.g. Mercedes-Ben zcar
shampoo or cleanin gcloths.
Mirror turn signal !
Only use cleanin gagents or cleaning
cloth sthat ar esuitable for plastic lenses.
Unsuitable cleanin gagents or cleaning
cloth scoul dscratch or damag ethe plastic
lenses of th emirror tur nsignals.
X Clean the plastic lenses of the mir rort urn
signals in the exterior mirror housin gusing
aw et sponge and mild cleaning agent ,e.g.
Mercedes -Ben zc ar shampoo or cleaning
cloths.
Cleaning th esensors !
If you clean th esensor swithah igh-pres-
sure cleaner, mak esure that you keep a
distanc eofatl east 30 cm between the
vehicle and th ehigh-pressure cleane rnoz-
zle. Information about the correc tdistance
is available from the equipment manufac-
turer. X
Clean sensors :of the drivin gsystems
with water, car shampo oand asoft cloth. Cleaning th
ereversing camera !
Do not clean the camer alens and the area
around the reversin gcamera with ahigh-
pressure cleaner. X
Use clear water and asoft clot htoclean
camera lens :.
Cleaning the 360° camera !
Do not clean the camera lens and the area
around the 360 °camera with ahigh-pres-
sure cleaner.360 X
Make sure that the vehicle is stationary and
that the key is in position 2in the ignition
lock.
X To open the cover of the 360° camer a:
with COMAND Online activated, press the
W button.
X Select System by turning
cVdthe
COMAND controller and press Wto con-
firm.
X Select 360° camera and press
Wto con-
firm. 370
CareMaintenanc
eand care

After
ateach-in period ,the tyr epressure
loss warning system wil lmonitor the set
tyr ep ressures of all fou rtyres.
If you wish to cancel the restart:
X Press the %button.
or
X If the Tyrepress. now OK? message
appears ,use the 9or: button to
select Cancel .
X Press the abutton.
The tyr epressure values stored at th elast
restar twill continue to be monitored. Tyr
epressur emonitor
Important safet ynotes It is the driver's responsibility to set the tyre
pressure to the recommended cold tyre pres-
sure suitable for the operatin
gsituation
(Y page 399). Note that the correct tyre pres-
sure for the curren toperatin gsituation must
first be taught-in to the tyre pressure monitor.
If ther eisas ubstantial loss of pressure, the
warning threshold for the warning messag eis
aligned to the referenc evalues taught-in.
Restart the tyre pressure monitor after
adjustin gtothe cold tyr epressure
(Y page 403). Th ecurren tpressures are
saved as new referenc evalues. This will
ensure that awarning mess agewillonly
appear if the tyre pressure drops significantly.
The tyre pressure monitor doe snot warn you
of an incorrectly set tyr epressure. Observe
th en otes on the recommended tyr epressure
(Y page 399).
Th et yre press urem onitor is not able to warn
you of asudden loss of pressure, e.g. if the
tyre is penetrated by aforeign object. In the
even tofas udden loss of pressure, bring the
vehicl etoah altbyb raking carefully. Avoid
abrupt stee ringmanoeuvres.
If at yrep ressur emonitor system is fitted, the
vehicle's wheels hav esensor sfitte dthat
mo nito rthe tyre pressures in all four tyres. The tyr
epressur emonitor war nsyou if the
pressur edrops in one or more of the tyres.
Th et yrep ressur emonitor only fu nctionsif
the cor respondin gsensor sare fitte dtoall
wheels.
Information on tyr epressures is displayed in
the multifunctio ndisplay .After afew minutes
of driv ing, the curren ttyre pressure of each
tyre is sho wn inthe multifunction display.
Th et yre pressure values indicated by the on-
board computer may differ from thos emeas-
ured at afilling station using apressure
gauge. Th etyre pressures shown by the on-
board computer refer to thos emeasured at
sea level. At high altitudes, the tyr epressure
values indicated by apressure gaug eare
higher than thos eshown by the on-board
computer. In this case ,donot reduce the tyre
pressures.
The operation of the tyr epressure monitor
can be affecte dbyinterference from radio
transmitting equipment (e.g .radio head-
phones ,two-way radios) that may be being
operated in or near the vehicle.
Checking tyr epressure electronically X
Make sure that the key is in posi-
tion 2(Ypage 159) in the ignitio nlock.
X Press the =or; button on the steer-
ing wheel to select the Serv. menu.
X Press the 9or: button to select
Tyre pressure .
X Press the abutton.
The curren ttyre pressure for each wheel
will be displayed in the multifunction dis-
play.
If the vehicle has been parked for longe rthan
20 minutes ,the Tyre pressures will be
displaye
dafter afew minutes of driving message appe
ars.
After ateach-in period, the tyr epressure
monito rautomatically recognises new
wheel sornew sensors. As long as aclear
allocation of the tyre pressure values to the
individual wheels is not possible ,the Tyre 402
Ty
re pressureWheel sand ty res

Lowering th
evehicle G
WARNING
The wheels could work loose if th ewheel nuts
and bolt sare not tightened to the specified
tightening torque. There is arisk of accident.
Have the tightening torque immediately
checked at aqualified specialist workshop
after awheel is changed. X
Plac ethe ratchet ring spanner ont othe
hexagon nut of the jac ksothat the letters
AB arev isible.
X Turn the ratchet ring spanner until the vehi-
cle is once again standing firmly on the
ground.
X Place the jack to one side.
X Tighten the wheel bolts evenly in across-
wis epattern in the sequence indicated
(: toA). The tightening torque must be
150 Nm.
X Turn the jack back to its initial position.
X Stow the jack and the rest of the tyre-
changing tools in the stowage well under
the luggag ecompart ment floor.
X Check the tyre pressure of the newly fitted
wheel and adjus titifnecessary.
Observ ethe recommended tyr epressure
(Y page 399).
i Vehicles wit htire pressure control sys-
tem: all fitted wheels must be equipped
with func tionin gsensors. Wheel and ty
recombinations General notes
! For safety reasons, Mercedes-Benz rec-
ommends that you only use tyres and
wheels which have been approved by
Mercedes-Benz specifically for your vehi-
cle.
Thes eare speciall yadapted to the control
systems, such as ABS or ESP ®
and are
marked as follows:
R MO =Mercedes-Ben zOriginal
R MOE =Mercedes-Ben zOriginal Extended
(tyres featuring run-flat characteristics)
R MO1 =Mercedes-Ben zOriginal (only cer-
tain AMG tyres)
Mercedes-Benz Original Extended tyres
may only be use donwheels that hav ebeen
specifically approved by Mercedes-Benz.
Only use tyres, wheels or accessories tes-
ted and approved by Mercedes-Benz. Cer-
tain characteristics, e.g. handling, vehic le
nois eemis sions or fuel consumption, may
otherwise be adv ersely affected. In addi-
tion, when driving with aload, tyr edimen-
sion variations could cause the tyres to
come into contact with the bodywork and
axle components .This could result in dam-
age to the tyres or the vehicle.
Mercedes-Ben zaccept snoliability for
damag eresulting from the use of tyr es,
wheel soraccess orieso the rthan those tes-
ted and approved.
Further information about wheels, tyres
and approved combination scan be
obtained from any qualified specialist
workshop.
! Retreaded tyres are neither tested nor
recommended by Mercedes-Benz, since
previous damage cannot always be detec-
ted on retreaded tyres. As aresult,
Mercedes-Ben zcannot guarantee vehicle
safet yifretreade dtyres are fitted. Do not
fit used tyres if you have no information
about their previous usage. Wheel and tyre combinations
409Wheelsand tyres Z

Usefu
linfor mation ............................ 420
Information on technical data .........420
Genuine Mercedes-Benz pa rts......... 420
Vehicle electronics ...........................421
Identification pla tes......................... 422
Service products and capacities .....423
Vehicle da ta...................................... 431
Trailer tow hitch ................................ 432
24 GH zradar sensor system ...........433 419Technical data

Usefu
linfor mati on
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variation sare pos-
sible. Note that your vehicl emay not be
equippe dwith all of the function sdescri-
bed. This is also the case for system sand
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page25). Informatio
nontechnical data
You can find curren ttechnical data on the
In te rnet at:
ht tp ://www.mercedes -benz.com
i The technical data was determined in
accordanc ewith EC Directives .All data
applies to the vehicle' sstandard equip-
ment .The data ma ytherefor ediffer for
vehicles with optional equipment .You can
obtain further information from a
Mercedes-Benz Servic eCentre. Genuine Mercedes-Benz pa
rtsG
WA
RNING
Driving safety may be impaired if non-
approved parts ,tyres and wheels or safety-
relevant accessories are used.
This could lead to malfunctions in safety-rel-
evant systems, e.g. the brake system. This
could cause you to lose control of your vehicle
and cause an accident.
For this reason, Mercedes-Benz recommends
that you use genuine Mercedes-Benz parts or
parts of equal quality. Only use tyres, wheels
and accessories that have been specifically
approved for your vehicle. H
Environmental note
Daimler AG also supplies reconditioned
assemblies and parts which are of the same
quality as new parts. For these, the same war-
ranty applies as for new parts.
! Airbags and seat belt tensioners, as well
as control units and sensors for these
restraint systems, may be installed in the
following areas of your vehicle:
R doors
R doo rpillars
R door sills
R seats
R dashboard
R instrument cluster
R centre console
Do not install accessories such as audio
systems in these areas. Do not carr yout
repairs or welding .You coul dimpair the
operatin gefficiency of th erestraint sys-
tems.
Hav eaccessories retrofitted at aqualified
specialist workshop.
Mercedes-Benz tests genuine parts and con-
version parts and accessories that have been
specifically approved for your vehicle for their
reliability, safety and suitability. Despite
ongoing market research, Mercedes-Benz is
unable to assess other parts. Mercedes-Benz
accepts no responsibility for the use of parts
that have been independently or officially
approved.
In Germany, certain parts are only officially
approved for installatio normodification if
they comply with legal requirements. This
also applies to some other coun tries. All gen-
uine Mercedes-Benz part smeet the approval
requirements. The use of non-approved parts
may invalidat ethe vehicle' sgeneral operating
permit. 420
Genuine Mercedes-Benz partsTechnical data

This is the case:
R
if they cause achange of the vehicle type
from that for whic hthe vehicle' sgeneral
operating permit was gran ted
R if other road users could be endangered
R if the emission or noise levels are adversely
affected.
Always specify the vehicle identification num-
ber (VIN) (Y page 422)and the engine num-
ber (Y page423) when ordering genuine
Mercedes-Benz parts. Vehicle electronics
Tamperin
gwith the engine electron-
ics G
WARNING
Alway shave work on the engine electronics
and related components carried out at aquali-
fied specialist workshop .Otherwise, the vehi-
cle's operating safety could be affected.
! Only have work carried out on the engine
electro nics and its associated parts ,such
as control units, sensors and connector
leads ,ataq ualified specialist workshop.
Vehicle component smay otherwise wear
more quickly and the vehicle's operating
permit may be invalidated. Retrofitting two-way radios and
mobile phones (RF transmitters)
G
WARNING
Incorrect retrofittin gofRFtransmitters can
caus ethe vehicle electronics to malfunc tion.
The vehicle' soperating safety and thus your
own safety are impaired.
Hav eaftermarket radi ofrequency transmit-
tin ge quipmen tinstalled at aqualified spe-
cialist workshop. G
WARNING
Incorrect retrofittin gofRFtransmitters can
lead to increased electromagnetic radiation in
th ev ehicle interior. Usin ganexterior aerial
takes into account curren tscientific discus-
sions relating to the possible health hazards
that may result from electromagnetic fields.
Have aftermarket radio frequency transmit-
ting equipment installed at aqualified spe-
cialist workshop.
! The operating permit may be invalidated
if the instructions for installation and use of
RF transmitters are not observed.
In particular, the following conditions must
be complied with:
R only approved wavebands may be used.
R the maximum permissible output in
thes ewavebands must be complied with.
R the approved aerial positions must be
complied with. Approved aerial positions
:
Rear roof area
; Rear wing
i On the rear wing, it is recommended that
you position the aerial on the side of the
vehicle closes ttothe cen treoft he road.
Use Technical Specifi cation ISO/TS 21609
(Road Vehicle s–"EMC guideline sfor fitting
aftermarket radi ofrequenc ytransmitting
equipment") when retrofitting RF (radi ofre-
quenc y)transmitters .Compl ywith the legal
requirements for add-on parts. Vehicle electronics
421Technical data Z

!
Alway suseasuitabl ecoolant mixture,
even in countries where high temperatures
prevail.
Otherwise, the engin ecooling system is not
sufficiently protected from corrosion and
overheating.
! The engin ecooling system is filled with
coolant, which must be renewed after
15 years or after 250,000 kilometres at the
latest.
The coolant is amixtur eofw ater and anti-
freeze/corrosio ninhibitor. It performs the
following tasks:
R anti-corrosio nprotection
R antifreeze protection
R raising th eboiling point
If antifreeze/ corrosion inhibitor is presen tin
the correct concentration, the boil ingp oint of
the coolant during operation will be approx-
imately 13 0†.
The antifreeze/ corrosion inhibitor concentra-
tion in the engin ecooling system should:
R be at least 50%. This will protect the engine
coolin gsystem against freezing down to
approximatel y-37 †.
R not exceed 55% (antifreeze protection
down to -45 †). Hea twill otherwise not be
dissipated as effectively.
If the vehicle has lost coolant, top it up with
equa lamounts of water and antifreeze/cor-
rosio ninhibitor. Mercedes-Benz recom-
mends an antifreeze/corrosion inhibito rcon-
cen trate in accordance with MB Specifica-
tions for Service Products 310.1.
The coolant is checked at every maintenance
interval at aqualified special istworkshop.
i When the vehicle is first delivered ,itisfil-
led with acoolant mixtur ethat ensures
adequate antifreeze and corrosion protec-
tion. Windscreen washe
rsystem an dhead-
lamp cleaning system
Important safety notes G
WARNING
Windscreen washer concentrat eishighly
flammable. If it comes into contact with hot
engine component sorthe exhaust system it
coul dignite. There is arisk of fire and injury.
Make sure that no windscreen washer con-
centrate is spille dnext to the filler neck.
! Only use washer fluid that is suitable for
plastic lamp lenses, e.g. MB SummerFit or
MB WinterFit. Unsuitable washer fluid
could damage the plastic lenses of the
headlamps.
! Do not use distilled or de-ionised water in
the washer fluid reservoir. Otherwise, the
level sensor may be damaged.
! Only the washer fluids SummerFit and
WinterFit can be mixed. Otherwise, the
spraying nozzles could become blocked.
At temperatures above freezing:
X Fill the washer fluid reservoir with amixture
of water and washer fluid, e.g. MB Sum-
merFit.
Mix 1part MB SummerFit to 100 parts water.
At temperatures below freezing:
X Fill the washe rfluid reservoir with amixture
of water and washer fluid, e.g. MB Winter-
Fit.
Adapt the mixin gratio to the outside temper-
ature.
R Down to Ò10 †: mix 1part MB WinterFit to
2p arts water.
R Down to Ò20 †: mix 1part MB WinterFit to
1p art water.
R Down to Ò29 †: mix 2parts MB WinterFit
to 1p art water.
i Add washe rfluid concentrate, e.g. MB
SummerFit or MB WinterFit, to the washer
fluid all year round. 430
Service products and capacitiesTechnical data