sensor MERCEDES-BENZ GL SUV 2012 Repair Manual

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

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

Vehicles without navigatio
nand vehicles for Austral ia:you must deactivate the radar
sensor system using the on-board computer whe nyou ar enear aradio telescop efacility
(Y page 283). 434
24 GHz radar sensor systemTechnical data