2012 MERCEDES-BENZ GL SUV service interval

X
While driving, push handle :of the elect ric
parking brake.
The vehicle can also be braked durin gan
emergency using the electric parking brake.
i The vehicle is braked for as long as the
handle of the electric parking brak eis
pressed. The longer the electric parking
brak ehandle is depressed, the greater the
braking force.
During braking:
R aw arning ton esounds
R the Releas epark. brake message
appears
R ther ed ! indicato rlamp in the instru-
ment cluster flashes
When the vehicle has been braked to astand-
still ,the electric parkin gbrake is engaged. Parkin
gupthe vehicle
If you leave th evehicle parked up for longer
than four weeks, the batter ymay be damaged
by exhaustive discharging.
X Disconnect the batter yorconnec tittoa
trickle charger.
i You can obtai ninformation about trickle
chargers from aqualified specialist work-
shop.
If you leave the vehicl eparked up for longer
than six weeks, the vehicl emay suffer dam-
age as aresult of lack of use.
X Visi taq ualifieds pecialist workshop and
seek advice. Driving tips
General notes
Impo rtant safety notes G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available with limitations, or not at all
.This coul daffect,
for example, the powe rsteering and the brake
boosting effect .You will require considerably
mor eeffort to steer and brake. There is arisk
of an accident.
Do not switch off the ignition while driving.
Drive sensibly –save fuel Observe the fol
lowing tips to save fuel:
X The tyres should always be inflated to the
recomm ended tyr epressure.
X Remove unnecessary lo ads.
X Remov eroof carriers when they are not
needed.
X Warm up the engine at low engine speeds.
X Avoid frequent acceleration or braking.
X observe the service intervals in the Service
Booklet or in the service interval display.
Have all the maintenan cework carried in
accordanc ewith Daimler AG regulations.
Fuel consumption also increases when driv-
ing in cold weather, in stop-start traffic and in
hilly terrain. Short journeys
! Vehicles with adiesel particle filter: if
the vehicle is mostly driven for short dis-
tances, it is possible that malfunctions may
occur durin gthe automa ticc leaning of the
diesel particle filter. This may lead to fuel
collectin ginthe engin eoil and cause
engin efailure. Therefore, if you frequently
drive short distances, you should tak ea20
minu tetrip on amotorwa yorrural road at
least every 500km. Braking
Important safet ynotes G
WARNING
If you shift down on aslippery road surfac ein
an attempt to increase the engine's braking 184
Driving tipsDrivin
gand parking

R
changin gthe conven ience sett ings
( Y pag e285)
R restoring the factory settings
(Y page 286)
Instrumen tcluster submenu Selecting th
eunit of measurement for dis-
tance
The Displa yunit Speed-/odometer: fun
ction allows you to choose whether cer-
tain displays appear in kilometres or miles in
the multifunction display.
You can determin ewhether the multifunction
displa yshows some messa ges in milesorkil-
ometres.
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Inst .cluster submenu.
X Press ato confirm.
X Press the :or9 buttontoselect the
Displa yunit Speed-/odometer: func-
tion.
Yo uw ill see the selected setting: km or
miles .
X Press the abutton to save the setting.
The selected unit of measurement for dis-
tance applies to:
R the digital speedometer in the Trip menu
R the total distance recorder and the trip
meter
R the trip computer
R the current consumption and the range
R the navigation instruc tions in the Navi menu
R cruise con trol
R SPEEDTRONIC
R DISTRONIC PLUS
R ASSYST PLUS service interval display Selecting the permanent display function
You can determine whethe
rthe multifunction
display permanen tlys hows your speed or the
outside temperature.
X Press the =or; button on the steer-
ing wheel to selec tthe Settings menu.
X Press the :or9 button to selec tthe
Inst .cluster submenu.
X Press ato confirm.
X Press the :or9 buttontoselect the
Permanen tdisplay: function.
Yo uw ill see the selected setting: outside temperature or
Dig. speedo [mph] .
X Press the abutton to save the setting.
i Speed is displayed in mph.
i Vehicles for the United Kingdom: this
func tion is unavailable.
Ligh tsubmenu Settin
gthe daytime drivin glights
The Daytim edriving lights functio
ncan
only be switched on while the engine is
switched off.
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Light submenu.
X Press ato confirm.
X Press :or9 to select the Daytime drivin
glights function.
If the Daytime driving lights have
been switched on ,the con eoflight and the
W symbol in the multifunction display
are shown in red.
X Press the abutton to save the setting.
Further information on daytime drivin glights
(Y page 119). 280
Menus and submenusOn-board computer and displays

H
Environmenta
lnote
When toppin guptheoil, tak ecaren ot to spill
any .Ifo il enters th esoil or waterways, it is
harmful to th eenvironment.
! Only use engine oil sand oil filters that
have bee napproved for vehicles with a
servic esystem. You can obtain alist of the
engine oils and oil filters tested and
approved in accordance with the
Mercedes-Ben zSpecification sfor Service
Product satany Mercedes-Ben zService
Centre.
Damage to th eengine or exhaust sys temis
caused by the following:
R using engine oil sand oil filters that have
not bee nspecifically approved for the
servic esystem
R changing the engine oil and oil filter after
missing the change interval required by
the servic esystem
R using engine oil additives
! Do not add too muc hoil. Toppin gupwith
to om uche ngine oil can resul tindamage
to the engine or to the catalytic converter.
Hav eexcess engine oil siphoned off. Example: engine oil filler cap
X
Turn cap :anti-clockwis eand remove it.
X Top up the engine oil.
If the oil level is at or below the MIN mark
on the oil dipstick ,add 1. 0litreo fengine
oil. X
Replace cap :on the filler nec kand turn
clockwise.
Make sure that the cap locks securely into
place.
X Check the oil level agai nwith the oil dip-
stic k(Ypage 36 2).
For furthe rinformation on engine oil ,see
(Y page 42 8). Other service products
Checking th ecoolant level G
WARNING
The coolin gsystem is pressurised. Therefore,
only unscrew the cap onc ethe engine has
coole ddown. The coolan ttemperatur edis-
play must be less than 70 †. Otherwise, you
could be scalded if hot coolant escapes. X
Park the vehicle on alevel surface.
Only chec kthe coolant level if the vehicle
is on alevel surface and the engine has
cooled down.
X Turn the key to position 2in the ignition
lock (Y page 159).
On vehicles with KEYLESS-GO, press the
Start/Stop button twic e(Ypage 159).
X Check the coolant temperatur egauge in
the multifunction displ ay.
Th ec oolant temperatur emust be below
70 †.
X Turn the key to position 0(Y page 159 )in
the ignition lock. Eng
inecompartment
363Maintenance and care Z

X
Slowl yturn cap :half aturn anti-clock-
wise to allo wexces spress uretoe scape.
X Turn cap :further anti-clockwise and
rem ovei t.
If the coolant is at the level of marker bar
= in the fille rneck when cold, ther eis
enough coolan tincoolant expansion
tank ;.
If the coolant leve lisapproximately
1.5 cm above marker bar =in the filler
nec kwhen warm, ther eisenoughcoolant
in coolant expansion tank ;.
X If necessary ,top up with coolant that has
been tested and approved by Mercedes-
Ben z.
X Replace cap :and turn it clockwise as far
as it will go.
For further information on coolant, see
(Y page 429).
Topping up the windscreen washer sys-
tem/headlam pcleaning system G
WAR
NING
Windscreen washer fluid/antifreeze is highly
flammable .Avoid spilling windscreen washer
fluid/antifreez eonh ot engin ecomponent sas
it can ignit eand burn. Severe burns could be
the resul t. Example: washer fluid reservoir
Example: washer fluid reservoir in AMG vehicles
X
To open: pull cap:upward sbythe tab.
X Top up with the premi xedw asher fluid.
X To close: press cap :ontothe filler neck
until it engages.
The washer fluid reservoi risu sed for both the
windscree nwasher system and th eheadlamp
cleaning system.
Further inf ormatio nonw indscreen washer
fluid/antifr eeze (Ypage 43 0). Service
ASSYST PLUS
Service messages The ASSYS
TPLUS service interva ldisplay
inform syou of the nex tservice due date.
In fo rmation on th etype of service and service
intervals (se eseparate Ser vice Boo klet).
You can obtain further information from a
Mercedes-Ben zService Cent re.364
ServiceMaintenance and care

i
The ASSYST PLU Sservice interval display
does not show any information on the
engine oil level. Observ ethe notes on the
engin eoil level (Y page 362).
The multifunction display shows aservice
message for afew seconds, e.g.:
Next servic eAin .. days Service
Adue Service
Aoverdue by ... days Th
eletter indicates which service is due. Astands for
aminor servic eand B for
am ajor
service. Anumber or another letter may be
displayed after the letter. This figure indicates
any necessary additional maintenanc ework
to be performed.
If you notify aqualified specialist worksho pof
this display, you will receive astatement on
the associated costs.
The ASSYST PLUS service interval display
doe snot tak einto account any periods of
tim eduring which the battery is disconnec-
ted.
Maintaining the time-dependent service
schedule:
X Note down the service du edated isplayed
in the multifunction displa ybefor ediscon-
nectin gthe battery.
or
X After reconnecting the battery ,subtract
the battery disconnection periods fro mthe
service date shown on the display.
Hiding aservice message X
Pres sthe % ora button on th esteer-
ing wheel. Displaying service messages X
Switch th eignitio non.
X Press the =or; button on the steer-
ing whee ltoselect the Serv. men
u.
X Press the 9or: button to select the
ASSYS TPLUS submenu and confirm by
press ingt he a button.
The service due date appears in the multi-
function display.
Informatio nabout Service Resetting th
eASSYST PLUS service inte r-
val display
! If the ASSYS TPLUS service interva ldis-
play has been inadvertently reset ,this set-
tin gc an be corrected at aqualified special-
ist workshop.
Have service work carried out as described
in the Servic eBooklet. This ma yotherwise
lead to increased wear and damage to the
major assemblies or the vehicle.
Aq ualified specialist workshop, e.g. a
Mercedes-Ben zService Cent re,w ill reset the
ASSYST PLU Sservic einterval display after
the service work has bee ncarried out. You
can also obtain further information on main-
tenance work, for example.
Special service requirements
Arduous operating conditions or increased
loads on the vehicle will require some service
work to be performed more often than for a
vehicle in normal use. Such arduous condi-
tions include regular city driving with frequent
intermediate stops and use in mountainous
terrain or on poor road surfaces.
For example, if the vehicle is used under ardu-
ous operating conditions, have air filters,
engine oil and oil filters changed frequently
and check the wheels often .Further informa-
tion can be obtaine dataqualified specialist
workshop, e.g. aMercedes-Ben zService
Cent re. Service
365Maintenance and care Z

R
Make sur ethat the positive terminal of a
con nected battery doe snot com einto con-
tact with vehicl eparts.
R Never place metal objects or tools on abat-
tery.
R It is important that you observe the descri-
bed order of the battery terminals when
connectin gand disconnectin gabattery.
R When jump-starting, make sure that the
battery poles with identical polarity are
connected.
R It is particularly important to observe the
described order when connectin gand dis-
connectin gthe jum pleads.
R Never connect or disconnect the battery
terminals while the engine is running. G
WARNING
Bat tery 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. H
Environmental note Batteries contain pollutants.
It is illegal to dispose of them
with the household rubbish.
They must be collected sep-
arately and dispose
dofinan
environmen tally responsible
recycling system. Dispose of batteries in an
environmentally responsible
manner
.Take discharged
batteries to aqualified spe-
cialist workshop or to acol-
lection point for used batter-
ies.
! Hav ethe battery chec kedr egularly at a
qualified specialist workshop.
Observ ethe service intervals in the Service
Booklet or con tact aq ualified specialist
worksho pfor mor einformation. !
You should have all work involving the
battery carried out at aqualified specialist
workshop. In the exceptional case that it is
necessar yfor you to disconnect th ebattery
yourself, mak esure that:
R you switc hoff the engine and remove the
key. On vehicles with KEYLESS-GO,
ensure that the ig nition is switched off.
Chec kthat all the indicator lamps in the
instrumen tcluster are off. Otherwise,
electronic components, such as the
alternator, may be damaged.
R you first remov ethe negativ eterminal
clam pand then the positive terminal
clamp. Never swap the terminal clamps.
Otherwise, the vehicle's electronic sys-
tem may be damaged.
R the transmissio nislocke dinp osition P
after disconnectin gthe battery .The vehi-
cle is secured against rolling away. You
can then no longer mov ethe vehicle.
The battery and the cover of the positive
termi nalclamp must be fitted securely dur-
ing operation.
Comply with safety precautions and take pro-
tective measures when handling batteries. WARNING
Fire, naked flames and smoking
are prohibited when handling the
battery
.Avoi dc reating sparks. Battery aci
discaustic. Avoid con-
tact with the skin, eyes or clothing.
Wear suitable protective clothing,
in particular gloves, an apron and
af ace mask.
Immediately rinse acid splashes
off with clean water. Consult adoc-
tor if necessary. Wear eye protection. Ba
ttery (vehicle)
383Breakdown assistance 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

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