ESP MERCEDES-BENZ GL SUV 2012 Owners Manual

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
#
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

Displa
ymessages Possible causes/consequences and
M Solutions
PR
E-SAFE Functions cur‐
rently limited See
Owner'
sManual Vehicles with the Active Driving Assistance package:
PRE-SAFE
®
Brake is tempora rily inoperative. Possibl ecauses:
R thef unction is impaire ddue to heav yrain or snow.
R thes ensor sint he ra diatortrim and in th ebumpers are 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 listed abov enolonger apply ,the displa ymessage
goes out.
PRE- SAFE ®
Brake is operational again.
If the displa ymessage 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 sensors in the radiator grille and the bumper
(Y page 370).
X Restart the engine.
X AMG vehicles: reactivate ESP ®
(Y page 67). PRE-SA
FE Functions limited
See Owner's Manual Vehicles withou
tthe Activ eDriving Assistance package: Adapti ve
Brake Assis tisf aulty. The distanc ewarning function may also have
failed.
Vehicles with the Active Driving Assis tance package:
PRE-SAFE ®
Brak eisf aulty. BA SPLUS or th edistanc ewarning
function may also have failed.
X Visit aqualified specialist workshop. ü If the symbol appears in the multifunction display,
aseat belt
tongue has been inser tedi nto arear seat belt buckle.
Fur ther information on the status indicator for the rear seat belts
(Y page 49). 298
Display messagesOn-boar
dcomputer and displays

Displa
ymessages Possible causes/consequences and
M Solutions
Blind Spot Assis
torActive Blind Spo tAssist is temporarily inop-
erative. Possible causes:
R the sensors are dirty.
R the function is impaired due to heavy rain or snow.
R the radar senso rsystem is outside the operating temperature
range.
R the radar sensor syste mistemporarily inoperative, e.g. due to
electromagneti cradiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation.
The yellow 9indicator lamps also light up in the exterior mir-
rors.
When the causes listed above no longer apply ,the displa ymes-
sage goes out.
Blin dSpot Assist or Active Blin dSpot Assist is operational 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 sensors (Y page 370).
X Restart the engine. Blin
dSpot Assist inoperative
Active Blind Spot
Assist inoperative Blind Spot Assist or Active Blind Spot Assist is faulty.
Th
ey ellow 9indicator lamps also light up in the exterior mir-
rors.
X Visit aqualified specialist workshop. Park Assist cancel‐
led The driver'
sdoor is open and the driver's seat belt has not been
fastened.
X Repeat the parkin gprocess wit hthe seat belt fastened and the
driver's door closed. You hav
einadvertently touched the multifunction steerin gwheel
while steerin gintervention was active.
X While steerin gintervention is active, make sure not to touch the
multifunction steerin gwheel. The vehicle has star
tedtos kid and ESP ®
has intervened.
X Use Active Parking Assist again later (Y page 219).312
Display messagesOn-board computer and displays

Tyres
Display messages Possible caus
es/consequences andM Solutions
Tyre pressure
Check tyres Th
et yre pressure loss warning system ha sdetected asignif icant
loss in pressure.
Aw arning ton ealso sounds.
G WARNING
Wit htyrep ressures which are too low, there is arisk of the fol-
lowing hazards:
R they ma yburst, especiall yasthe load and vehicle speed
increase.
R they ma ywear excessively and/or unevenly, which may greatly
impair tyr etraction.
R thed riving characteristics, as well as steering and braking, may
be greatl yimpaired.
There is arisk of an accident.
X Stop the vehicle without makin gany sudden steering or braking
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).
X Check the tyre pressures and, if necessary, correct the tyre
pressure.
X Restart the tyre pressure loss warnin gsystem when the tyre
pressure is correct (Y page 401).Check tyr
epres‐ sures then restart
Run Flat Indicator Th
et yre pressure los swarning system generated adispla ymes-
sage and has not been restarted since.
X Set the cor rect tyre pressure in all four tyres.
X Restart the tyre pressure los swarning system (Y page 401). Run Flat Indica
tor inoperative Th
et yre pressure los swarning system is faulty.
X Visit aqualified specialist workshop. Tyre pressu
re will
be displayed after
driving
afew minutes Th
et yre pressure monitor is measuring the tyre pressure.
X Driv eon.
The tyre pressures appear in the multifunction display after you
have bee ndriving for afew minutes. Tyre press. moni‐
to
ri noperative Th
et yre pressure monitor is faulty.
X Visit aqualified specialist workshop. Display messages
315On-board computer and displ ays Z

Displa
ymessages Possible causes/consequences and
M Solutions
Ty
re press. moni‐ tor inoperative No
wheel sensors Th
ew heels fitte ddonot have asuitable tyr epressure se nsor.T he
tyr ep ressure monito risd eactivated.
X Fit wheels with suitable tyr epressure sensors.
Th et yre pressure monitor is activated automatically after driv-
ing for afew minutes. Chec
ktyre(s) Th
et yre pressure in one or more tyres has droppe dsignificantly.
The wheel position is displayed in the multifunction display.
Aw arning ton ealso sounds.
G WARNING
Wit htyrep ressures which are too low, there is arisk of the fol-
lowing hazards:
R they ma yburst, especiall yasthe load and vehicle speed
increase.
R they ma ywear excessively and/or unevenly, which may greatly
impair tyr etraction.
R thed riving characteristics, as well as steering and braking, may
be greatl yimpaired.
There is arisk of an accident.
X Stop the vehicle without makin gany sudden steering or braking
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).
X Check the tyre pressure (Y page 402).
X If necessary, correct the tyre pressure. 316
Display messagesOn-board computer and displays

Displa
ymessages Possible causes/consequences and
M Solutions
h
Ty
re pressure Cau‐ tio
nT yrem alfunc‐ tion Th
et yrep ressur eino neor mor etyres has dropped suddenly.
Aw arning ton ealso sounds.
G WARNING
If you driv ewithaf lat tyre, there is arisk of the following hazards:
R Af lat tyre affects the ability to steer or brake the vehicle.
R You could lose control of the vehicle.
R Continued drivin gwithaflat tyre will cause excessive heat build-
up and possibly afire.
There is arisk of an accident.
X Stop the vehicle without makin gany sudden steering or braking
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).h
Tyre pressure
Chec
ktyre(s) Th
et yre pressure in one or more tyres has droppe dsignificantly.
G WARNING
With tyre pressures which are too low, there is arisk of the fol-
lowing hazards:
R they may burst, especiall yasthe load and vehicle speed
increase.
R they ma ywear excessively and/or unevenly, which may greatly
impair tyr etraction.
R thed riving characteristics, as well as steering and braking, may
be greatl yimpaired.
There is arisk of an accident.
X Stop the vehicle without makin gany sudden steering or braking
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).
X Check the tyre pressure (Y page 402).
X If necessary, correct the tyre pressure. h
Please correct
tyre pressure The tyre pressure is too low in at least one of the tyres, or the tyre
pressure difference between the wheels is too great.
X
Check the tyre pressures at the next opportunity
(Y page 402).
X If necessary, correct the tyre pressure. 318
Display messagesOn-board computer and displays

Warnin
gand indicator lamps in the
instrument cluster Warning and indicator lamps over-
view
L Dipped-beam headlamps
(Ypage 120)
T Side lamps (Y page 119)
K Main-beam headlamps
(Ypage 122)
#! Turn signals (Y page 121)
R Rear foglamp (Y page 120)
ü Seat belts (Y page 325)
J Brakes (Ypage 326)
! ABS(Ypage 32 7)
÷ ESP®
(Y page 329)
å ESP®
OFF (Y page 329)
! Electric parking brake (red)
(Ypage 332)
! Electric parking brake (yellow)
(Ypage 332)
6 SRS (Ypage 332)
; Engine diagnostics
(Ypage 333)
8 Reserve fuel (Y page 333)
? Coolant (Ypage 333)
· Distance warning function
(Ypage 335)
% Diesel engine: preglow
(Ypage 161)
h Tyre pressure monitor
(Ypage 336) 324
Warning and indicator lamp
sintheinstrument clusterOn-boar dcomputer and displays

Problem Possible causes/consequences and
M Solutions
!
The yellow AB
Swarning
lamp is lit while the
engine is running. ABS (Anti-lock Brake System) has been deactivated due to
afault.
For this reason, BAS (Brake Assist), BAS PLUS, ESP ®
(Electronic
Stability Program), PRE-SAFE ®
,P RE-SAFE ®
Brake, COLLISION
PREVENTION ASSIST, the HOLD function, hill start assist, cross-
wind driving assistance, adaptive brake lights and ESP ®
trailer
stabilisation, for example, are also deactivated.
ATTENTION ASSIST is deactivated.
G WARNING
The brake syste mcontinue stofunction normally, but without the
functions listed above. The wheel scould therefor elock if you
brake hard ,for example.
The steerabilit yand braking characteris tics may be severely affec-
ted .The brakin gdistance 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 Observ ethe additiona ldisplay messages in the multifunction
display.
X Driv eonc arefully.
X Visit aqualified specialist workshop.
If the ABS control unit is faulty, there is also apossibility that other
systems, such as the navigation system or the automatic trans-
mission ,will not be available. Warning and indicator lamp
sinthe instrument cluster
327On-board computer and displays Z

Problem Possible causes/consequences and
M Solutions
!
The yellow AB
Swarning
lamp is lit while the
engine is running. ABS is temporarily unavailable. Therefore, BAS
,BAS PLUS, ESP ®
,
EBD (electronic brake force distribution), PRE-SAFE ®
,
PRE-SAFE ®
Brake, COLLISION PREVENTION ASSIST, the HOLD
function, hil lstart assist, crosswind driving assistance, the adap-
tive brake lights and ESP ®
trailer stabilisation, for example, are
also deactivated.
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 syste mcontinue stofunction normally, but without the
functions listed above. The front and rear wheel scould therefore
lock if you brake hard ,for example.
The steerabilit yand braking characteris tics may be severely affec-
ted .The brakin gdistance in an emergenc ybraking situatio ncan
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilis ethe vehicle.
There is arisk of an accident.
X Carefull ydrive on asuitable stretch of road, making slight steer-
ing movement sataspeed above 20 km/h.
The functions mentioned above are available again when the
warning lamp goes out.
If the warning lamp is still on:
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit aqualified specialist workshop. 328
Warnin
gand indicator lam psin th einstru ment clusterOn-board computer and displays