MERCEDES-BENZ GL SUV 2012 Owners Manual

Stopping th
eRACETIMER X
Press the %button on the steering
wheel.
X Press ato confirm Yes .
The RACETIMER interrupts timing when you
stop the vehicle and turn the key to position
1 in the ignition lock. When you turn the key
to position 2or 3and then press ato
confirm Start ,t
iming is continued.
Resetting the current lap
X Stop the RACETIMER.
X Press =or; to select ResetLap .
X Press ato reset th elap time to "0".
Deleting all laps If you switch off the engine, the RACETIMER
is reset to "0" after 30 seconds
.All laps are
deleted.
You cannot delete individual stored laps. If
you have stopped 16 laps, the current lap
does not have to be reset.
X Reset the current lap.
X Press ato confirm Reset .
Rese tRace Timer? appe
arsint he multi-
func tion display.
X Press the :button to select Yes and
press the abutton to con firm.
All laps are deleted. Overall evaluation
:
RACETIMER overall evaluation
; Tota ltime driven
= Average speed
? Distanc ecovered
A Maximum speed
This func tion is shown if you have stored at
least one lap and stopped the RACETIMER.
X Press the =or; button on the steer-
ing wheel to select the AMG menu.
X Press the 9button repeatedly until the
overall evaluation is shown.
Lap evaluation :
Lap
; Lapt ime
= Average lap speed
? Lap length
A Top speed during lap 288
Menus and submenusOn-board computer and displays

This function is only available if you have
store
datleast two laps and have stopped the
RACETIMER.
X Press the =or; button on the steer-
ing wheel to select the AMG menu.
X Press the 9button repeatedly until the
lap evaluation is shown.
Eac hlap is shown in aseparate submenu.
The fastest lap is indicated by flashin gsym-
bol :.
X Press the 9or: button to select a
different lap evaluation. Menus and submenus
289On-board computer and displays Z

Displa
ymessages Introduction
General notes Display message
sappear in th emultifunction display.
Display messages with graphic symbols are simplified in the Owner's Manual and may differ
fro mt he symbols in the multifunction display.
Please respond in accordanc ewith the displa ymessages and follow the additional notes in
this Owner's Manual.
Certain display messages are accompanied by an audible warning tone or acontinuou stone.
When you stop and par kthe vehicle, please observe the notes on:
R HOL Dfunction (Y page 211)
R Parking (Y page 181)
Hiding display messages X
Press the aor% button on the steering wheel to hide the displa ymessage.
The display message is cleared.
The multifunction display shows high-priorit ydispla ymessages in red. Som ehigh-priority dis-
play messages cannot be hidden.
The multifunction displa yshows these messages con tinuously until the cause sfor the mes-
sages have been remedied.
Message memory The on-boar
dcomputer save scertain display messages in the message memory.You can
cal lupt he displa ymessages:
X Press the =or; button on the steerin gwheel to selec tthe Serv. menu.
If ther eare display messages, th emultifunction display shows 2messages ,f
or example.
X Press the 9or: button to select the entry, e.g. 2messages .
X Press ato confirm.
X Press the 9or: buttontos croll through the displa ymessages.
When the ignition is switched off ,all display messages are deleted apart from some high-
priority display messages. Once the causes of the high-priority display messages have been
rectified, the correspondin gdisplay messages are also deleted. 290
Display messagesOn-board computer and displays

Safety systems
Display messages Possible causes/consequences and
M Solutions
!÷
currentl
yunavail‐ able See Owner's
Manual ABS (Anti-loc
kBraking System) ,ESP ®
(Electronic Stability Pro-
gram), BAS (Brake Assist), PRE-SAFE ®
,t he HOL Dfunction, hill
start assist, crosswind driving assistance and ESP ®
trailer stabili-
sation are temporarily not available.
The adaptive brake lights ,COLLISION PREVENTION AS SIST, BAS
PLUS and PRE-SAFE ®
Brake may als ohave failed.
In addition, the ÷,åand! warning lamps light up in
the instrumen tcluster.
ATTENTION ASSIST is deactivated.
Possible causes:
R self-diagnosis is not yet complete.
R the on-board voltage may be insufficient.
G WARNING
The brake system continues to func tion normally, but withou tthe
func tions listed above. The wheels coul dtherefore lock if you
brake hard, for example.
The steerability and brakin gcharacteristics ma ybeseverely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP ®
is not operational, ESP ®
is unabl etos tabilise the vehicle.
The dange rofskidding and having an accident increases.
X Carefull ydrive on asuitable stretch of road, making slight steer-
ing movement sataspeed above 20 km/h.
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
X Drive on carefully.
X Visit aqualified specialist workshop. !÷
inoperativ
eSee Owner's Manual ABS, ESP
®
,B AS ,PRE-SAFE ®
,t he HOL Dfunction, hill start assist,
crosswind driving assistance and ESP ®
trailer stabilisation are not
available due to amalfunction.
The adaptive brake lights ,COLLISION PREVENTION AS SIST, BAS
PLUS and PRE-SAFE ®
Brake may als ohave failed.
In addition, the J,÷,åand! warning lamps light
up in the instrumen tcluster.
ATTENTION ASSIST is deactivated.
G WARNING Display messages
291On-board computer and displays Z

Displa
ymessages Possible causes/consequences and
M Solutions
The brak
esystem con tinues to function normally, but without the
function slisted above. The wheels could therefore loc kifyou
brake hard ,for example.
The steerabilit yand braking characteristics may be severely affec-
ted. The braking distance in an emergenc ybraking situatio ncan
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilis ethe vehicle.
The danger of skidding and having an accident increases.
X Drive on carefully.
X Visit aqualified specialist worksho pimmediately. ÷
currentl
yunavail‐ able See Owner's
Manual ESP
®
,B AS, PRE-SAFE ®
,t he HOL Dfunction, hill start assist, cross-
wind driving assistance and ESP ®
trailer stabilisatio nare not avail-
ab ledue to amalfunction.
The adaptive brake lights, COLLISION PREVENTION ASSIST, BAS
PLUS and PRE-SAFE ®
Brake may als ohave failed.
In addition, the ÷andå warning lamp slight up in the
instrument cluster.
The self-diagnosi sfunction may not be complete, for example.
ATTENTION ASSIS Tisd eactivated.
G WARNING
The brak esystem continues to function normally, but witho utthe
functions listed above. Th ewheels could therefor elock if you
brake hard ,for example.
The brakin gdistance in an emergenc ybraking situatio ncan thus
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilis ethe vehicle.
The danger of skidding and having an accident increases.
X Carefully drive on asuitable stretc hofroad, makin gslight steer-
ing movement sataspeed above 20 km/h.
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
X Drive on carefully.
X Visit aqualified specialist workshop. 292
Display messagesOn-board computer and displays

Displa
ymessages Possible causes/consequences and
M Solutions
÷
in
operative See Owner'
sManual ESP
®
,B AS, PRE-SAFE ®
,t he HOL Dfunction, hill start assist, cross-
wind driving assistance and ESP ®
trailer stabilisatio nare not avail-
ab ledue to amalfunction.
The adaptive brake lights, COLLISION PREVENTION ASSIST, BAS
PLUS and PRE-SAFE ®
Brake may als ohave failed.
In addition, the ÷andå warning lamp slight up in the
instrument cluster.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but withou tthe
func tions listed above. The wheels coul dtherefore lock if you
brake hard, for example.
The brakin gdistance in an emergenc ybraking situatio ncan thus
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilis ethe vehicle.
The danger of skidding and having an accident increases.
X Drive on carefully.
X Visit aqualified specialist workshop. T!
÷
inoperativ
eSee Owner's Manual EBD (electroni
cbrake force distribution) ,ABS ,ESP ®
,B AS ,PRE-
SAFE ®
,t he HOL Dfunction, hill start assist, crosswind driving
assistance and ESP ®
trailer stabilisation are not available due to
am alfunction.
The adaptive brake lights ,COLLISION PREVENTION AS SIST, BAS
PLU Sand PRE-SAFE ®
Brake may also have failed.
In addition, the ÷,åand! warning lamps light up in
the instrument cluster and awarnin gtones ounds.
ATTENTION ASSI STis deactivated.
G WAR
NING
The brake sys temc ontinues to fu nction normally, but without the
function slisted above. The wheels could therefore lock if you
brak ehard, for example.
The steerabilit yand braking characteristics may be seve rely affec-
ted. The braking distanc einanemergency braking situation can
increase.
If ESP ®
is not opera tional, ESP ®
is unable to stabilise the vehicle.
The danger of skidding and havi ngan accident increases.
X Drive on carefully.
X Visit aqualified specialist worksho pimmediately. Display mess
ages
293On-board computer and displays Z

Displa
ymessages Possible causes/consequences and
M Solutions
!
Re
leasep arking brake Th
er ed ! indicato rlamp flashes and awarning ton esounds.
Ac onditio nfor aut omatic relea se of theelectric parking brak eis
not fulfilled (Y page182).
You are driving wit hthe electric parking brak eapplied.
X Releas ethe electric parking brak emanually. The red
!indicator lamp flashes and awarning ton esounds.
You ar emaking an emergenc ystopu singthe electric parking
brak e(Ypage 182). !
Pa
rkingb rake See Owner'
sManual Th
ey ellow !warning lamp light sup.
The electric parking brak eismalfunctioning.
To apply:
X Switch th eignition off.
X Press th eelectric parking brak ehandle for at least ten seconds.
X Move the transmission selector lever to P.
X Consul taqualified specialist workshop. The yellow
!warning lamp and the red !indicator lamp
are lit.
The electric parkin gbrake is malfunctioning.
To release:
X Switch off th eignition and tur nitback on.
X Release the electric parkin gbrake manually.
or
X Releas ethe electric parkin gbrake automaticall y(Ypage 18 2).
If the electric parking brake can still not be released:
X Do not drive on.
X Consul taqualified specialist workshop. 294
Display messagesOn-boar
dcomputer and displays

Displa
ymessages Possible causes/consequences and
M Solutions
The red
!indicato rlamp flashes and the yellow !warning
lamp is lit.
The elect ricp arking brak eismalfunctioning.
To release:
X Switch off the ignition and tur nitback on.
X Release the elect ricp arking brak emanually.
To apply:
X Switch off the ignition and tur nitback on.
X Engage the elect ricp arking brak emanually.
If the red !indicator lamp con tinues to flash:
X Do not driv eon.
X Secure the vehicle agai nstrolling away ( Ypage 405).
X Mov ethe transmissio nselecto rlever to P.
X Turn the fron twheels towards the kerb.
X Consult aqualified specialist workshop. The yellow
!warning lamp lights up. The red !indicator
lamp flashes for about ten seconds after the electric parking brake
has been applied or released .Itthen goes out or remain slit.
The electric parkin gbrake is malfunctioning.
X Switch off th eignition and tur nitback on.
X Engage the electric parking brake.
If it is not possible to apply the electric parking brake:
X Move the transmission selector lever to P.
X Visit aqualified specialist workshop.
If it is not possible to release the electric parking brake:
X Release the electric parking brake automatically (Y page 182).
If the electric parking brake can still not be released:
X Consult aqualified specialist workshop. The yellow
!warning lamp lights up. If you manually apply or
release the electric parking brake, the red !indicator lamp
flashes.
The electric parking brake is malfunctioning. It is not possible to
apply the electric parking brake manually.
X Move the transmission selector lever to P.
X Visit aqualified specialist workshop. Display messages
295On-board computer and displays Z

Displa
ymessages Possible causes/consequences and
M Solutions
!
Pa
rking brake inop‐
erative Th
ey ellow !warning lamp lights up. The red !indicator
lamp flashes fo rabout ten seconds after the electric parkin gbrake
ha sb een applied or released. It then goes out or remains lit.
The electric parkin gbrake is malfunctioning ,e.g. because of over-
voltag eorundervoltage.
X Remove the cause for the overvoltage or undervoltage ,e.g. by
charging the battery or restarting the engine.
X Appl yorr elease the electric parkin gbrake.
If it remains impossibl etoapply or release the electric parking
brake:
X Swit choff the ignition and tur nitback on.
X Apply or release the electric parkin gbrake.
If th eelectric parkin gbrake can stil lnot be released:
X Consult aqualified specialist workshop. The display messag
eisonly shown whil ethe vehicle is in motion.
The red !indicator lam pflashes and the yellow !warning
lamp is lit.
It is not possible to apply the electric parkin gbrake manually.
X Move th etransmission selector lever to P.
X Visit aqualified specialist workshop. !
Turn on th
eigni‐ tion to release
the parkin
gbrake Th
er ed ! indicator lam pislit.
You attempted to release the electric parkin gbrake whil ethe igni-
tion was switched off.
X Key: turnthe key to position 1in the igni tion lock.
X KEYLESS-GO: switchonthe igni tion. J
Chec
kbrake fluid level There is insufficient brake fluid in th
ebrake flui dreservoir. In addi-
tion ,the J warnin glamp in the instrument cluster lights up and
aw arning ton esounds.
G WARNING
The brakin gefficienc ymay be impaired.
There is arisk of an accident.
X Pull over and stop the vehicle safely as soon as possible ,paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Secure the vehicle against rolling away (Y page 181).
X Consult aqualified specialist workshop.
X Do not top up the brake fluid. This does not correct the error. 296
Display messagesOn-board computer and displays

Displa
ymessages Possible causes/consequences and
M Solutions
#
Ch
eckb rake pad wear Th
eb rak epads/lining shaver eached their wear limit.
X Visit aqualified specialist workshop. PR
E-SAFE inopera‐ tiv
eS ee Owner's Manual Important functio
nsof PRE-SAFE ®
hav efailed .All other occupant
safet ysystems, e.g. airbags ,remai navailable.
X Visit aqualified specialist worksho pimmediately. PRE-SAFE
Function
scur‐ rently limited See
Owner's Manual Vehicle
swithou tthe Activ eDriving Assistance package: Adaptive
Brake Assist is temporaril yinoperative. Possible causes:
R the function is impaired due to heavy rain or snow.
R the sensor in the bumper is dirty.
R the rada rsensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emit tedbyn earby TV or radi osta-
tions or othe rsources of elect romagnetic radiation.
R AM Gvehicles: ESP ®
is deactiva ted.
R the system is outside the operatin gtemperatur erange.
R the on-board voltage is too low.
Onc ethe causes liste dabove no longer apply, the display message
goes out.
Adapti veBrake Assis tiso perational again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rollin gaway (Y page 181).
X Clean the bumpers (Y page 370).
X Restart the engine.
X AMG vehicles: reactivate ESP ®
(Y page 67). Display messages
297On-boardcomputer and displays Z