MERCEDES-BENZ GLS SUV 2021 Owners Manual

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Do not exceed the maximum permissible driving distance in emer gency mode and the maximum permissible
speed with a 0at MOExtended tyre. #
Obser vethe no tes on 0at tyres. No
tes in theev ent of a 0at tyre (/ page 382). #
Stop theve hicle in accordance with the tra1c conditions. #
Check the tyres.
Tyre(s) overheated *At least one tyre is overheating. The a.ected tyres are displa yed in red. At temp eratures close tothe limit value, the
tyres are displa yed in yello w. &
W
WARNI NG
ARNI NGRisk of an accident from driving with overheated tyres
Overheated tyres can burst. #
Reduce speed so that the tyres cool down. Reduce speed
*At least one tyre is overheating. The a.ected tyres are displa yed in red. At temp eratures close tothe limit value, the
tyres are displa yed in yello w. &
W
WARNI NG
ARNI NGRisk of an accident from driving with overheated tyres
Overheated tyres can burst. #
Reduce speed so that the tyres cool down. 498
498
Display messages and
warning/indicator lamps

Exhaus
Exhaust g
t gas
as aTer
aTer tr
treatment
eatment Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Ø
Refill AdBlue See Owner’s
Manual *
The AdBlue ®
leve l has fallen into there ser verange. #
Top up AdBlue ®
immediately (/ page 220).
Ø Top up AdBlue Emergency
op. in XXX miles See Own-
er's Manual *
The low AdBlue ®
leve l will lead tolimited per form ance aTer there maining distance displa yed has been co vered. #
Top up AdBlue ®
immediately (/ page 220).
Ø XX,X l Top up AdBlue Emer.
op.: max. XXX km/h Start
not poss. in XXX km *
The low AdBlue ®
leve l will lead tolimited per form ance from the speed displa yed.
ATer there maining distance displa yed has been co vered, it will no longer be possible tostart theve hicle. #
Add at least the amount of AdBlue ®
displa yed (/ page 220). Display messages and
warning/indicator lamps
499 499

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Ø
XX,X l Top up AdBlue
Switch on ignition, wait 60
sec. or eng. start not poss. *
The AdBlue ®
tank is em pty. Yo u can no longer start theve hicle. #
Add at least the amount of AdBlue ®
displa yed (/ page 220). #
Switch on theve hicle and waitfor appr oximately 60 seconds. #
Start theve hicle.
¯
AdBlue system fault See
Owner's Manual *
The AdBlue ®
system is malfunctioning. #
Consult a quali/ed speciali stwo rkshop immediatel y.
¯
AdBlue system fault Emer-
gency op. in XXX miles See
Owner's Manual *
The AdBlue ®
system is malfunctioning. Performance will be reduced once there maining distance displa yed has been
co vered. #
Consult a quali/ed specialist workshop immediatel y.500 500
Display message
s andwarning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
¯
AdBlue system fault Emer.
op.: max. XXX km/h Start
not poss. in XXX km *
Po we rre striction due totheAd Blue ®
system fault. ATer the distance displa yed has been co vered, it will no longer be
possible tostart theve hicle. #
Consult a quali/ed specialist workshop immediatel y.
¯
AdBlue system fault Engine
start not possible *
The AdBlue ®
system is malfunctioning. You can no longer start theve hicle. #
Consult a quali/ed specialist workshop immediatel y. Display messages and
warning/indicator lamps
501 501

Engine oil
Engine oil
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
5
Add 1 litre engine oil when
next refuelling *T
he engine oil le vel has dropped tothe minimum le vel.
* N NOOTE
TE Engine damage caused bydriving with insu1cient engine oil #
Avoid long journe yswith insu1cient engine oil. #
When next refuelling, add 1 lit reof engine oil (/ page 368).
No tes on engine oil (/ page 430).
5
Engine oil level Reduce oil
level *T
he engine oil le vel is too high.
* N NOOTE
TE Engine damage caused bydriving with excess engine oil #
Avoid long journe yswith excess engine oil. #
Consult a quali/ed specialist workshop immediately and ha vethe engine oil le velre duced.
5 Engine oil level Stop vehi-
cle Switch engine off *T
he engine oil le vel is too lo w.
* N
N O OTE
TE Engine damage caused bydriving with insu1cient engine oil #
Avoid long journe yswith insu1cient engine oil. #
Stop theve hicle immediately in accordance with the tra1c conditions. Do not continue driving. 502
502
Display messages and
warning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Switch o. theve hicle. #
Add 1 l of engine oil (/ page 368). #
Check the engine oil le vel.
No tes on engine oil (/ page 430).
5
Engine oil pressure Stop
Switch off engine *T
he oil pressure is too lo w.
* N
N O OTE
TE Engine damage caused bydriving with insu1cient oil pressure #
Avoid driving with insu1cient oil pressure. #
Stop theve hicle immediately in accordance with the tra1c conditions. Do not continue driving. #
Switch o. theve hicle. #
Consult a quali/ed specialist workshop.
5
Engine oil level cannot be
measured *T
he elect rical connection tothe oil le vel sensor has been inter rupted or the oil le vel sensor is faulty. #
Consult a quali/ed speciali stwo rkshop. Displ
aymessages and warning/indicator lamps
503 503

W
W
ar
ar ning and indicat
ning and indicat or lam
or lamps
ps Ov
Ov
er
ervie
vie w of indicat
w of indicat or and w
or and war
arning lam
ning lam ps
ps Some systems will per
form a self-test when the
ve hicle is switched on. Some indicator and warn-
ing lamps may brie0y light up or 0ash. This beha v-
iour is non-critical. These indicator and warning
lamps indicate a malfunction only if they light up
or 0as haTer theve hicle has been star ted or dur-
ing a journe y.
Ins
Ins tr
trument displ ay
ument display Depending on
the display setting, the positions of
th e indicator lamps on the inst rument display may
di.er from theex ample shown. Indicat
Indicat
or and w
or and w ar
arning lam
ning lam ps:
ps:
6 Restraint system (/ page 505)
ü Seat belt (/ page 505)
ï Trailer hitch (/ page 506)
Ù Powe r steering (/ page 506)
ÿ Coolanttemp erature (/ page 508)
; Engine diagnostics (/ page 508)
p V
V ehicles wit
ehicles wit h a pe
h a petr
trol engine:
ol engine: engine
operating temp erature (/ page 508)
% V
Vehicles wit
ehicles wit h a diesel engine:
h a diesel engine: preglow
# Electricalfault (/ page 508)
8 Reser vefuel wi thfuel /ller 0ap loca-
tion indicator (/ page 508)
! Electric parking brake (red)
(/page 511)
! Electric parking brake (yellow)
(/page 511)
J Brakes (yellow) (/ page 511)
J Brakes (red) (/ page 511)
L Distancewarning (/ page 513) Ó
Active Brake Assist (/ page 513)
ê Active Brake Assist (/ page 513)
ä AIRMATIC / E- ACTIVE BODY CON-
TROL (/ page 513)
! ABS (/page 515)
÷ ESP®
(/ page 515)
å ESP®
OFF (/ page 515)
h Tyre pressure monitoring system
(/ page 517)
T Standing lights (/ page 160)
L Low beam (/ page 160)
K High beam (/ page 162)
#! Turn signal lights (/ page 162)
R Rear fog light (/ page 160) 504 504
Display message
s andwarning/indicator lamps

Occupant safe
Occupant safe
ty
ty W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
6
Re straint system warning
lamp *T
he restraint system redwa rning lamp is lit while theve hicle is on.
The restraint system is malfunctioning (/ page 43). &
W
WARNING
ARNING Risk of injury due tomalfunctions in there straint system
Co mp onents in there straint system ma y be activated unintentionally or not deploy as intended in an accident. #
Have there straint system checked and repaired immediately at a quali/ed specialist workshop. #
Drive on carefull y. #
Notethe messages on the instrument displa y. #
Consult a quali/ed specialist workshop immediatel y.
ü
Seat belt warning lamp
0ashes *T
he red seat belt warning lamp 0ashes and an intermittent warning tone sounds.
The driver or front passenger has not fastened his/her seat belt while theve hicle is in motion. #
Fasten your seat belt (/ page 46).
There are objects on the front passenger seat. #
Remo vethe objects from the front passenger seat. Display messages and
warning/indicator lamps
505
505

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
ü
Seat belt warning lamp
lights up *T
he red seat belt warning lamp lights up once theve hicle has star ted.
In addition, an intermittent warning tone may sound.
The red seat belt warning lamp reminds the driver and front passenger tofasten their seat belts. #
Fasten your seat belt (/ page 46).
If yo u ha veplaced objects on the front passenger seat, there d seat belt warning lamp may remain lit. V
V
ehicle
ehicle W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Ù
Po we r steering warning
lamp (red) *T
he red po wer steering warning lamp is lit while theve hicle is running.
The po wer assistance or the steering itself is malfunctioning. &
W
WARNING
ARNING Risk of accident if steering capability is impaired
If th e steering does not function as intended, theve hicle's operating saf ety is jeopardised. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and tra1c conditions. Do not
continue driving under any circums tances. #
Consult a quali/ed speciali stwo rkshop. #
Notethe messages on the instrument displa y.506
506
Display message
s andwarning/indicator lamps

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
ï
Tr ailer tow hitch warning
lamp *T
hered trailer hitch warning lamp is lit.
The trailer hitch is not operational or is swivelling. &
W
WARNING
ARNING Risk of an accident if the ball neck is not loc ked
The trailer may become de tach ed. #
Stop theve hicle immediately in accordance with the tra1c conditions. Do not continue driving. #
Uncouple the trailer and secure it against rolling away. #
Initiate a new swivelling procedu reand do not re-couple the trailer until the display message disappears. #
Notethe messages on the instrument displa y.
If th e trailer hitch is swivelling: #
Wait until the ball neck has reached the operational position. Display messages and
warning/indicator lamps
507
507