service MERCEDES-BENZ GL SUV 2012 Service Manual

other obstacles. If it is necessary to drive over
kerbs, speed humps or similar elevations, try
to do so slowly and at an obtuse angle .Oth-
erwise ,the tyres, particularly the sidewalls,
ma ybed amaged. Regular checking of wheels and tyres
G
WARNING
Damaged tyres can cause tyre inflation pres-
sure loss .Asaresult,you coul dlose control
of your vehicle. There is arisk of accident.
Check the tyres regularly for signs of damage
and replace any damaged tyres immediately.
Regularly check the wheels and tyres of your
vehicle for damage at least once amonth, as
well as after drivin goff-road or on rough
roads .Damaged wheels can cause aloss of
tyr ep ressure. Pa yparticular attention to
damage such as:
R cuts in the tyres
R punctures
R tears in the tyres
R bulges on tyres
R deformation or severe corrosion on wheels
Regularly check the tyre tread depth and the
condition of the tread across the whole width
of the tyre (Y page 397). If necessary, turn
the front wheelst ofull lock in order to inspect
the inner side of the tyre surface.
All wheel smust have avalve cap to protect
the valve against dirt and moisture. Do not fit
anything onto the valve other than the stand-
ard valve cap or other valve caps approved by
Mercedes-Benz for your vehicle. Do not fit any
other valve caps or systems, e.g. tyre pres-
sure monitoring systems.
Regularly check the pressure of all the tyres,
particularly prior to long trips. Adjust the tyre
pressure as necessary (Y page 399).
Observe the notes on the emergenc yspare
wheel (Y page 414). The service life of tyres depends on various
factors, including the following:
R
driving style
R tyr ep ressure
R tyre mileage Tyre tread
G
WARNING
Insufficient tyre trea dwill reduce tyre trac-
tion. The tyre is no longer able to dissipate
water. This means that on wet road surfaces,
the risk of aquaplaning increases, in particular
where speed is not adapted to suit the driving
conditions. There is arisk of accident.
If the tyre pressure is too high or too low, tyres
may exhibit different levels of wear at differ-
ent locations on the tyre tread. Thus, you
should regularly check the tread depth and
the condition of the tread across the entire
width of all tyres.
Minimum tyre tread depth for:
R summer tyres: 3mm
R M+S tyres: 4mm
For safety reasons ,replace the tyres before
the legally prescribed limi tfor the minimum
tyr etrea ddepth is reached.. Selecting, fitting and replacing ty
res
R Only fi ttyres and wheels of the same type
and make.
R Only fit tyres of the correc tsize ont othe
wheels.
R Run in new tyres at moderate speeds for
the first 10 0km. They onl yreach their full
performanc eafter this distance.
R Do not drive wit htyres which have too little
tread depth .This otherwise significantly
reduce sthe traction on wet roads (aqua-
planing).
R Replace the tyres after six year satthe lat-
est, regardless of wear. Operation
397Wheels and ty res Z

Storing wheels
Stor ewheels that ar enot being used in acool,
dry and preferably dar kplace. Protect the
tyres against oil, grease, petrol and diesel. Cleaning the wheels
G
WARNING
The water jet of circular-jet nozzles (dirt grind-
ers) can cause damage not visible from the
outside to tyres or chassis components. Com-
ponent sdamaged in this way can unexpect-
edly fail. There is arisk of an accident.
Do not use high-pressure cleaners with circu-
lar-jet nozzles to clean the vehicle. Have dam-
aged tyres or chassis components replaced
immediately. Fitting
awheel
Preparing the vehicle X
Vehi cles with an emergency spare
wheel: whenfitting the emergenc yspare
wheel in the even tofaflat tyre, observe the
addi tional note sonvehicl epreparation
under "Flat tyre" (Y page 378).
X Pa rk th evehicle on firm, non-slippery and
level ground.
X Unload heavy luggage.
X Engage the electric parking brak eman-
ually.
X Bring the front wheels into the straight-
ahead position.
X Shift the transmission to position P.
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove
the key from the ignition lock.
X Vehicles with KEYLESS-GO: open the
driver' sdoor.
The on-boar delectronic shave status 0,
which is the same as the key having been
removed. X
Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 159).
X If included in the vehicle equipment, take
the tyre-change tool kit out of the vehicle.
X Secure the vehicle to prevent it from rolling
away.
i Apart from some country-specific var-
iants, vehicles are not equipped with tyre-
changing tools .For mor einformation on
which tool sare require dtop erform awheel
change on your vehicle, consult a
Mercedes-Ben zService Centre.
Required tyre-cha nging tools could be, for
example:
R jack
R wheel chock
R wheel wrench
Securing the vehicle against rolling
away If your vehicle is equipped with
awheel choc k,
it can be found in the tyre-change tool kit
(Y page 377).
The folding wheel chock is an additional
securing measure to prevent the vehicle from
rolling away, for example when changing a
wheel.
X Fold both plates upwards :.
X Fold out lower plate ;.
X Guide the lugs on the lower plate fully into
the openings in base plate =. Changing
awheel
405Wheels and 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

data applicable to your vehicle on the vehi-
cle' sidentification plate. VIN
X
Open the fron tright-han ddoor.
X Open cover :in the dire ction of the arrow
and remove it.
The VI Ncan be seen.
The VIN can also be foun donthe vehi cle
identification plate (Y page 422).Engine number
The engin enumber is stamped ont othe
crankcase .You can obtain further informa-
tion fr om any qualified specialist workshop. Service products and capacities
Important safety notes
G
WARNING
Whe nhandling ,storing and disposing of any
servic eproducts, please observe the relevant
regulations, as you could othe rwise endanger
yourself and others.
Keep servic eproducts awa yfromc hildren.
To protec tyour health, do no tallow service
products to com eintoc ontac twith your eyes
or open wounds. See adoctor immediately if
any servic eproduct is swallowed. H
Environmental note
Dispose of service products in an environ-
mentally-responsible manner.
Service products includ ethe following:
R fuels (e.g. petrol, diesel)
R exhaust gas after treatmen tadditives, e.g.
AdBlue ®
R lubrican ts(e.g. engin eoil, transmission oil)
R coolant
R brake fluid
R windscreen washer fluid
R clima te control systemrefrigerant
Components and servic eproducts mus tbe
matched. Mercedes-Benz reco mmends that
you use produc tstested and approved by
Mercedes-Benz. They are listed in this
Mercedes-Benz Owne r'sM anual in the appro-
priat esection.
You can identif yservice product sapproved
by Mercedes-Ben zbythe fol lowinginscrip-
tion sonthe container:
R MB Freigab e(e.g. MB Freigab e229.51)
R MB Approva l(e.g. MB Approval 229.51)
Other designation sorrecommendation sind i-
cat eal evel of qualit yora specification in
ac cord ance wit hanMBS heet Nu mber (e.g.
MB 229.5). They hav enot necessarily been
approved by Mercedes-Benz.
Further informatio ncan be obtained from any
Mercedes -Ben zS ervice Cent reor on the
In te rnet at ht tp://bevo.mercedes -benz.co m. Fuel
Important safety notes G
WARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is arisk of fir eand explo-
sio n.
You must avoi dfire, naked flames, creating
sparks and smoking. Switc hoff the engine Servic
eproducts and capacities
423Technical data
Z

and, if applicable, the auxiliar
yheating before
refuelling. G
WARNING
Fuels are poisonous and hazardou stohealth.
Ther eisad anger of injury.
Do not swallow fuel or let it com eintoc ontact
with skin, eyes or clothing. Do not inhale fuel
vapours. Keep fuels out of th ereac hofchil-
dren.
If you or others com eintoc ontac twith fuel,
observe th efollowing:
R Wash th efuel off any affected areas of skin
with water and soap immediately.
R If you get fuel in your eyes, rinse them thor-
oughl ywith clean water immediately .Seek
imm ediate me dical attention.
R If fuel is swallowed, seek imm ediate medi-
cal attention. Do not induc evomiting.
R Chang eany clothin gthat has com einto
contac twith fuel immediately.
Tank capacity Model Total capa-
city All models
100.0 l
Model Of which
reserve fuel All models
Approx.
12. 0l GL 63 AMG
App
rox.
14. 0l Petrol (EN 228,
EDIN 51626-1) Fuel grade
!
Do not use diese ltorefuel vehicles with a
petrol engine. Do not switc honthe igni tion
if you accidentally refuel with the wrong
fuel. Otherwise, the fuel will enter the fuel
system. Even smal lamount softhe wrong fuel could result in damage to the fuel sys-
tem and the engine. The repair costs are
high. Notify
aqualified specialist workshop
and have the fuel tan kand fue llin es
draine dcompletely.
! Only refuel using unleaded petrol with at
leas t95R ON/85 MO Nthat conform sto
Euro pean stan dard EN 22 8orEDIN
51626-1 or an equivalent sp ecification.
Fue lwitht his specif ication may contain up
to 10 %ethanol.
! Do not us ethe following:
R E8 5( petro lwith85%e thanol)
R E100 (100 %ethanol)
R M15 (petro lwith 15 %methanol)
R M85 (petrol with 85 %methanol)
R M10 0(100 %methanol)
R Petro lwith metallic additives
R Diesel
Do not mix these fuels with petrol, and do
not use any additives. This can otherwise
lead to engin edamage. This does not
include cleanin gadditives for the removal
and prevention of residue build-up. Only
cleanin gadditives recommended by
Mercedes-Ben zshould be added to petrol,
see "Additives". You can obtai nfurther
information from any Mercedes-Benz
Service Centre.
Usuall yyou will fin dinformation abou tthe
fuel grade on the pump. If you cannot fin dthe
label on the petrol pump, ask the filling sta-
tion staff.
i E10f uel contains up to 10% bioethanol.
Your vehicle is suitable for use with E10
fuel. You can refuel your vehicle using E10
fuel.
i Asatemporary measure, if the recom-
mended fuel is not available, you may also
use unleaded petrol with an octane rating
of 91 RON/82 MON. This may reduce
engine performanc eand increas efuel con-
sumption. Avoid driving at full throttle. 424
Service products and capacitiesTechnical data

Information on refuelling (Y
page 175).
AMG vehicles
! Only refuel using supe runleaded petrol
with at leas t98RON/88 MO Nthat con-
forms to Europea nstandard EN 228 or an
equival ents pecif ication.
Yo uc an otherwise impai rengine outpu tor
damage the engine.
! Premium-grade unleaded petro lwith an
octane ratin gof95R ON/85 MON ma ybe
used as atemporar ymeasur eifthe recom-
mended fuel is not available. This may
reduce engin eperforman ceand increase
fuel consumption .Asmuch as possible,
avoid driving at full throttle.
! Regular unleade dpetrol with an octane
rating of 91 RON/82.5 MON may also be
used as atemporary measure if the recom-
mended fuel is not available.
Doing so result sinnoticeably higher fuel
consumption ,and the engine power output
is noticeably reduced .Avoi dd riving at full
throt tle.
If only regular unleaded petrol with an
octane ratingof91R ON/82.5 MO Nor
lowe risa vailable ,you must have the vehi-
cle adapted to this fuel at aqualified spe-
cialist workshop.
i E10 fuel contains up to 10% bioethanol.
Your vehicle is suitabl efor use with E10
fuel. You can refuel your vehicle using E10
fuel.
Additives
! Operatin gthe engin ewith fuel additives
can cause wear in the fuel high-pressure
pump and contaminate the entire fuel sys-
tem. The repair costs are high. This does
not include additives for the removal and
prevention of residue build-up. Petrol must
only be mixed with additives recommended
by Mercedes-Benz .More information about
recommended additives can be obtained
from any Mercedes-Benz Servic eCentre. One of the major problem
swith low-grade
fuel is the creation of carbon deposits during
the process of burnin gfuel. Mercedes-Benz
recommends that you use fuel brands that
have additives.
If you use fuels without these additives for a
longer period of time, there may be abuild-up
of carbon deposits. Thes ewill form especially
on the inlet valves and in the combustion
chamber.
This could lead to engine runnin gproblems,
e.g.:
R longe rengine warm-up phase
R uneven idle
R engine noise
R misfiring
R los so fpower
In areas where petrol with the required addi-
tives is not available, carbon deposits can
build up. In this case, Mercedes-Benz recom-
mends the use of additives that have been
approved for Mercedes-Benz vehicles; see
http:/ /bevo.mer cedes-benz.com.
The quality of the fuel available in some coun-
tries may not be sufficien t.Residue could
build up as aresult. In such cases, and in
consultation with aMercedes-Ben zService
Cent re,the petrol ma ybemixed with the
additive recommended by Mercedes-Benz
(part no. A000989254510). You must
observe the notes and mixin gratios specified
on the container.
Consult aMercedes-Ben zService Cent reto
view alist of approved products. Observe the
instruc tions for use in the product descrip-
tion.
Do not mix other fuel additives with fuel. This
causes unnecessary cost sand could damage
the engi ne. Service products and capacities
425Technicaldata Z

Diesel (EN 590)
Fuel grade
G
WARNING
If you mix diesel fue lwithp etrol, th eflash
poin toft his fuel mixtur eislower than that of
pur ediesel fuel. When the engine is running,
components in the exhaust system may over-
heat unnoticed. There is arisk of fire.
Never refuel with petrol. Never add petrol to
diesel fuel.
! When refuelling, only use diesel fuel that
conforms to the European standard EN 590
or is of equivalen tquality .Fuel that does
not con form to EN 59 0can lead to
increased wear as well as damag etothe
engin eand exhaust sys tem.
! Do not use the following:
R marine diesel
R heating oil
R bio-diesel
R vegetable oil
R petrol
R paraffin
R kerosene
Do not mix such fuels with diesel fuel and
do not use any special additives. This can
otherwis elead to engine damage .This
does not include flo wimprover additives.
For further information, se e"Flow improv-
ers".
! Vehicles with adiesel particle filter: in
countries outside the EU, only refuel with
low-sulphur Eur odiesel with asulphur con-
ten tunde r50p pm; otherwise the emission
contro lsystem could be damaged.
! Vehicles without adiesel particle fil-
ter: in countries where only diesel fuel with
ah igh sulphur conten tisavailable ,you will
need to carry out your vehicle' soil change
at shorter intervals. More information
abou tthe interval for oil change can be obtained from any qualified specialist
workshop.
Usually you will fin dinformation about the
fuel grade on the pump. If you cannot find the
labe lont he petrol pump, ask the filling sta-
tion staff.
Infor mation on refuelling (Y page 175).
Low outside temperatures
In winter months, diesel fuel with an improved
cold flow quality is available. In Europe, the
EN 590 standard defines various climate-
dependent temperature categories. Malfunc-
tions can be avoide dbyrefuelling with diesel
fuel that corresponds to the climatic specifi-
cations outlined in EN 590. At unusually low
outside temperatures, it is possible that the
flow characteristics of the diesel fuel could be
insufficient .Accordingly, dies elfue lfrom
warmer areas may not be suitabl efor opera-
tion in colder climat icconditions.
i Further informatio noncountry-specific
fuel properties can be obtained from oil
companies, e.g. at filling stations.
Flow imp rovers
To improve the low-temperatur eresistanc eof
diesel fuel, aflow improver can be attached.
The effec tiveness of aflow improver is not
guaranteed for every fuel.
Only use flow improvers tested and approved
by Mercedes-Benz. Durin guse, please
observe the information on operation.
Correc tdosage and sufficien tmixing are deci-
sive in improving low-temperature resistance
with the flow improver. Overdosage can
potentially even decrease low-temperature
resistanc eand must therefor ebeavoided.
Follo wthe manufacturer's guidelines on dos-
age.
Mix the additive int othe diesel in good time,
before the flo wcharacteristic softhe diesel
becom einsufficie nt.O therwise, malfunctions
can only be rectified by heating the entire fuel
system, e.g. by parking in aheated garage. 426
Service products and capacitiesTechnical data

More information about recommended flow
improvers can be obtained from any qualified
specialist workshop.
Fuel consumption informa tion H
Environmental note
CO 2(carbon dioxide) is the gas which scien-
tists believe to be principally responsible for
global warming (the greenhouse effec t).Y our
vehicle' sCO
2emissions are directly related to
fuel consumption and therefore depend on:
R efficien tuse of the fuel by the engine
R driving style
R other non -technical factors, such as envi-
ronmental influences or road conditions
You can minimise your vehicle's CO 2emis-
sions by driving carefull yand having it serv-
iced regularly.
The vehicle will use more fuel than usua lin
the following situations:
R at very low outside temperatures
R in urban traffic
R on short journeys
R in mountainous terrain
R when towing atrailer
i Only for certain countries :you can find
the curren tconsumption and emission val-
ues of your vehicle in the COC documents
(EU CERTIFICATE OF CONFORMITY). These
documents ar edelivered with your vehicle.
The consumption figures were in each case
based on the curren tlya pplicable version:
R for vehicles that comply with standards
up to and including the EURO 4standard,
in accordance with EU Directive
80/1268/EEC
R for vehicles tha tcompl ywith or exceed
the EUR O5standard ,inaccordanc ewith
Regulatio n(EC )N o. 715/2007
Deviation sfrom thes evalues may occur
under normal operating conditions. AdBlue
®
Important safety notes AdBlue
®
is aw ater-soluble fluid for the
exhaust gas aftertreatmen tofdiesel engines.
It is:
R not poisonous
R colourless and odourless
R not flam mable
When you open the AdBlue ®
container, small
amou ntsofa mmonia vapou rmay be
released.
Ammonia vapours have apungen todour and
are particularly irritatin gtothe skin ,to
mucous membranes and to th eeyes. You may
experie nceab urnin gsensation in your eyes,
nose and throat. Coughing and waterin gof
the eyes are possible.
Do not inhale any ammonia vapours that may
be released. Fill the AdBlue ®
tank only in well-
ventilated areas.
Low outside temperatures AdBlue
®
freezes at atemperatur eofapprox-
imately -11 †. The vehicle is equipped with
an AdBlue ®
preheati ngsyste matt he factory.
Winter operation can therefor ebeguaran-
teed even at temperatures below -11 †.
Additives !
Only use AdBlue ®
in accordance with ISO
22241. Do not use additives with AdBlue ®
and do not dilute AdBlue ®
with water. This
may destroy the BlueTEC exhaust gas after-
treatment system.
Purity !
Impurities in AdBlue ®
(e.g. due to other
servic eproducts, cleaning agents or dust)
lead to:
R increased emissio nvalues
R damage to the catalytic converter Service product
sand capacities
427Technical data Z

R
engin edamage
R malfunc tions in the BlueTEC ®
exhaust
gas aftertreatmen tsystem
Assuring the purity of AdBlue ®
is particularly
importan twithr espec ttoavoiding malfunc-
tions in th eBlueTEC exhaust gas aftertreat-
ment system.
If AdBlue ®
is pumped out of the AdBlue ®
tank,
e.g. during repair work, do not use this fluid
to refill the tank. The purity of the fluid can no
longer be guaranteed.
Capacities Model Tota
lcapacity GL 35
0Blue-
TEC 4MATIC 31.2 l
Engine oil
General notes The quality of the engine oil is decisive for the
function and servic
elife of an engine. After
extensive tests, Mercedes-Benz approves
engine oil sthat correspond to the current
technical standard.
Therefore, only Mercedes-Benz approved
engin eoilsm ay be use dinMercedes-Benz
engines.
Further information on tested and approved
engine oils can be obtained from any
Mercedes-Ben zService Centre. Mercedes-
Benz recommends that you have the oil
change carried out at aqualified specialist
workshop. Mercedes-Benz approval is indica-
ted on the oil container by the inscription "MB
Approval" and the corresponding designa-
tion, e.g. MB Approva l229.51.
Yo uc an call up an overview of approved
engine oil sonthe Internet at:
http://bevo.mercedes-benz.com by enter-
ing the designation ,e.g. 229.5.
Th et able sho wswhich engine oil shave been
approved for you rvehicle. Petrol engines MB App
roval GL 500 4MATIC Blue-
EFFICIENCY
GL 63 AMG
22
9.5 Diesel engines with a
diesel particle filter MB Approval
GL 350 Blue-
TEC 4MATIC
GL 350 CDI 4MATIC
228.51,
229.31 ,229.51 Diese
lengines without
ad iesel particle filter MB Approval
GL 350 CDI 4MATIC
22
8.31 ,228.5,
228.51, 229.3,
229.31, 229.5, 229.51 Use onl
ySAE 0W-40 or SAE 5W-40 engine oils
for AM Gvehicles.
i If the engine oils listed in the table are not
available, you may add the followi ngengine
oils until the nex toil change:
R vehicles with apetrol engine: MB
Approval 22 9.12 29.3 or ACEA A3
R diesel engines: MB Approva l229.1,
229.3, 229.5 or ACEA C3
Use onl ySAE 0W -40o rSAE 5W -40e ngine
oil sf or AMG vehicles.
This ma yonly be topped up once, and the
quantity must not be greate rthan 1. 0l.
Ca pacities Th
ef ollowing va luesrefertoano il change
including the oil filter. 428
Service products and capacitiesTechnica
ldata

Model Replacement
amount GL 50
04MATIC
Blue EFFICIEN CY 8.5 l
GL 63 AMG
With external oil
cooler: 9.5 l GL 350 Blue-
TEC 4MATIC
GL 350 CDI
4MATIC
8.0 l
Additives
!
Do not use any additives with the engine
oil .T his could damage the engine.
Engine oil viscosity Viscosit
ydescribes the flow characteristics
of afluid. If an engine oil has ahigh viscosity
rating, it flows slowly ;the lower the viscosity,
the faster it flows.
Engin eoil selection is based on the respective
outside temperatures and in accordance with
the SAE classification (viscosity). The table
shows you which SAE classifications are to be
used. The low-temperature properties of
engine oils can be significantly impaired dur-
ing operation due to, for example, ageing or
soot and fuel accretion .Itistherefore
strongly recommended to observe regular oil
changes usin ganapproved engine oil with the
appropriate SAE classification. Brake fluid
G
WARNING
Over aperiod of time, the brak efluid absorbs
moisture from the air; This lowers its boiling
point.
If the boiling point of the brake fluid is too low,
vapour pocket smay form in the brake system
when the brakes are applied hard (e.g. when
driving downhill). This impairs braking effi-
ciency.
You shoul dhave the brake fluid renewed at
regular intervals. The brake fluid change inter-
vals can be found in the Service Booklet.
Only use brake fluid approved by Mercedes-
Benz according to MB Approval 331.0.
Information about approved brake fluid can
be obtained at any qualified specialist work-
sho poront he Internet at
http://bevo. mercedes-benz.com.
i Have th ebrake flui drenewed regularly at
aq ualified specialist workshop. Coolant
Important safety notes G
WARNING
Antifreeze is highly flammable. Fire, naked
flames and smoking are prohibited when han-
dling antifreeze.
If antifreeze comes into contact with hot
engine parts, it may ignite and you could burn
yourself. Do not spill any antifreeze on hot
engine parts.
! Only add coolant that has been premixed
with the desired antifreez eprotection. You
cou ld othe rwise damage th eengine.
Further information on cool ants can be
found in the Merced es-Benz Specifications
for Service Prod ucts, MB Specifications for
Service Products 310.1 ,e.g. on the Inter-
net at http://bevo.mercedes-benz.co m.
Or contac taqualified specialist workshop. Servic
eproducts and capacities
429Technical data Z