2021 MERCEDES-BENZ GLS SUV oil

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Notethe messages on the instrument displa y.
If t
If t he coolant t
he coolant t em
emper
per atur
atur e displa
e displa y is at t
y is at the low
he lower end of t
er end of t he t
he tem
emper
per atur
atur e scale:
e scale: #
Consult a quali/ed specialist workshop.
If t
If t he coolant t
he coolant t em
emper
per atur
atur e displa
e displa y is at t
y is at the upper end of t
he upper end of t he t
he tem
emper
per atur
atur e scale:
e scale: #
Exit theve hicle and keep a safe distance from it until the engine has cooled down. #
Check the coolant le vel (/ page 369). #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive tothe nearest quali/ed specialist workshop. In doing so, ensu rethat the
coolant temp erature display remains below 120°C.
ÿ
Coolant warning lamp (yel-
low) *T
he yellow coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R The charge air, transmission oil or battery cooling is faulty
R The radiator shutters are bloc ked or defective #
Avoiding high loads on the engine, drive tothe nearest quali/ed specialist workshop. Displ
aymessages and warning/indicator lamps
509
509

A
A
ctiv
ctiv eSt
e St eer
eer ing Assist
ing Assist
Ac tivating/deactivating.......................... 252
Ac tive Emer gency Stop Assist................ 253
Fu nction................................................ 251
System limits......................................... 251
A
A ctiv
ctiv e
eTr
Tra1c
a1c Jam Assist
Jam Assist
Ac tivating/deactivating.......................... 249
Fu nction................................................ 248
A A dap dap tiv
tive br
e br ak
ake lights
e lights .................................... 236
A
A dap
dap tiv
tive cr
e cr uise contr
uise contr ol
ol
see Active Distance Assist DISTRONIC
A
A dap
dap tiv
tive functions, MUL
e functions, MUL TIBEAM LED
TIBEAM LED
see Intelligent Light System
A
A dap
dap tiv
tive Highbeam Assis
e Highbeam Assist Plus t Plus
Fu nction................................................ 165
Switching on/o..................................... 166
A
A dBlue
dBlue ®
®
Ad ditives................................................ 429
Capacity................................................ 430
No tes..................................................... 219
Purit y.................................................... .429
To pping up............................................ .220 A
A dditional cushion dditional cushion
Leg rest................................................. 115
Re ar head restraint................................ 122
A
A dditional door lo ck
dditional door lock ....................................... 84
A
A dditiv
dditiv es
es
Ad Blue ®
................................................ .429
Engine oil............................................... 430
Fu el....................................................... 427
A
A dditiv
dditiv es (A
es (AdBlue
dBlue ®
®
)
)
see AdBlue ®
A
A dditiv
dditiv es (engine oil)
es (engine oil)
see Additives
A
A dditiv
dditiv es (fuel)
es (fuel)
see Fuel
ADS PL
ADS PL US dam
US dam ping syst
ping syst em
em
see AIRMATIC
ATer
ATer -sales
-sales ser
service
vice
see ASS YST PLUS
Air conditioning menu
Air conditioning menu Calling up.............................................. 179
Air dis
Air distr tribution
ibution
Setting................................................... 178
Setting (MBUX multimedia system)......... 180 Air fr
Air fr
eshener syst
eshener syst em
em
see Frag rance system
Air inlet
Air inlet see Air-water duct
Air pr
Air pr essure
essure
see Tyre pressure
Air suspension
Air suspension
see AIRMATIC
Air v
Air v ents
ents
Ad justing (front)..................................... 186
Ad justing (rear)...................................... 187
Glo vebox............................................... 188
Air v
Air v ents
ents
see Air vents
Air
Air -conditioning syst
-conditioning syst em
em
see Climate cont rol
Air
Air -r
-recir
ecir culation mode (wit
culation mode (wit h
h/ne
/ne
par
par ticle
ticle pr
pre/lt
e/lt er)
er).......................................... 181
Air
Air -w
-wat
ater duct
er duct
Ke eping free.......................................... 371
Airbag
Airbag
Activation................................................ 43
Cushionbag.............................................. 48 520
520
Index

BAS
(Brake Assist System).................... .231
Driving tips............................................ 195
EBD (Electronic Brake forc e Distribu-
tion).......................................................2 35
HOLD function....................................... 235
Limited braking e.ect (salt-treated
ro ads)................................................... .195
Ne w/replaced brake linings/brake
discs...................................................... 193
Po st-collision brak e.................................. 57
Ru nning-in no tes.................................... 193
Br Br aking assist
aking assist ance
ance
see BAS (Brake Assist System)
Br
Br eakdo
eakdo wn
wn
Assistance overview. ................................ 18
To w- starting........................................... 397
To wing away.......................................... 394
Tr anspo rting theve hicle........................ .395
Wheel chang e........................................ 409
Br
Br ea kdo
eakdo wn
wn
see Flat tyre
Butt
Butt ons
ons
St eering wheel....................................... 310 C
C
Calls
Calls Mercedes me......................................... 340
Camera
Camera
Information............................................ 229
Camera Camera see 360° Camera
see Dashcam
see Reversing camera
Car key
Car key
see Key
Car w Car w ash
ash
see Care
Car w
Car w ash (car
ash (car e)
e)............................................ 371
Car
Car -t
-to-X
o-X -Communication
-Communication
Displaying hazard warnings.................... 334
Care
Care 360° camera......................................... 376
Air-water duct........................................ 371
Automatic car wash.............................. .371
Carpet................................................... 378
Decorative foil........................................ 375
Display................................................... 378 Exterior lighting...................................... 376
Head-up display..................................... 378
High-pressure cleaner............................3
74
Pa int...................................................... 374
Plastic trim............................................3 78
Re alwo od/trim elements..................... .378
Re versing camera..................................3 76
Ro of lining............................................. 378
Ru nning boa rds...................................... 376
Seat belt................................................ 378
Seat co ver............................................. 378
Sensors.................................................3 76
St eering wheel....................................... 378
Ta ilpipes................................................ 376
Tr ailer hitc h............................................ 376
Wa shing byhand.................................... 374
Wheels/rims.......................................... 376
Wi ndo ws................................................ 376
Wi per blades.......................................... 376
Car
Car pe pet (Car
t (Car e)
e)............................................... 378
Changing g Changing g ears ears
Manually................................................ 211
Changing hub caps
Changing hub caps ....................................... 409 Index
523
523

Dat
Dat
a st
a st or
or age
age
Data pr otection rights.............................. 41
Electronic control units............................ 38
Online services........................................ 41
Ve hicle..................................................... 38
Deactiv Deactiv ating t
ating the alar
he alar m (AT
m (ATA)
A)........................ .106
Dealer Dealer ship ship
see Quali/ed specialist workshop
Declar
Declar ation of conf
ation of conf or
ormity
mity
Elect romagnetic compatibilit y.................. 26
Impor ter addresses.................................. 33
Jack......................................................... 34
Speci/c absor ption rate........................... 27
TIREFIT kit................................................ 34
Wi reless vehicle component s................... 27
Decor
Decor ativ
ativ e f e foil (cleaning ins
oil (cleaning instr tructions)
uctions)........... 375
DeN
DeNOx ag Ox ag ent
ent
see AdBlue ®
Des
Destination entry tination entry
Entering a POI or addres s....................... 331
Det
Det ecting inatt
ecting inatt entiv
entiveness
eness
see ATTENTION ASSIST
Diagnos
Diagnostics connection tics connection.................................. 35 Diesel
Diesel
Low outside tempe ratures...................... 427
No tes..................................................... 427
Digit
Digit al Owner's Manual
al Owner's Manual.................................. 20
Dingh
Dingh yto
y to wing
wing
see Tow- bar system
DIRECT SELECT lev
DIRECT SELECT lev er
er
Engageing reve rsege ar.......................... 210
Engaging drive position.......................... 211
Engaging neutral................................... .210
Engaging park position automaticall y...... 210
Fu nction................................................ 209
Selecting park position........................... 210
Displa
Displa y (car
y (care)
e)............................................... 378
Displa
Displa y (MBUX multimedia syst
y (MBUX multimedia syst em)
em)
Home sc reen.........................................3 16
Operating.............................................. 317
Displa
Displa y (on-boar
y (on-boar d com
d comput
puter)
er)
Displa yson the inst rument displa y......... 312
Displa
Displa y in t
y in the windscr
he windscr een
een
see Head-up display
Displa
Displa y message
y message
Calling up (on-board computer).............. 442 No
tes..................................................... 442
Displa
Displa y messag
y messag es
es
ç - - - km/h .................................... .473
È - - - km/h..................................... 472
h - - - km/h..................................... 472
# 12 V battery See Owner's Man-
ual......................................................... 492
Û 48 V battery See Owner's Man-
ual......................................................... 494
: Active Light System inoperative..... 449
¯ AdBlue system fault Emer. op.:
max. XXX km/h Start not poss. in
XXX km.................................................. 501
¯ AdBlue system fault Emer gency
op. in XXX miles See Owner's Manual.... 500
¯ AdBlue system fault Engine
start not possible................................... 501
¯ AdBlue system fault See Own-
er's Manual............................................ 500 526 526
Ind
ex

5
Add 1 litre engine oil when next
re fuelling ............................................... 502
é ATTENTION ASSIST inoperati ve..... 471
é ATTENTION ASSIS T:Take a
break!.................................................... 471
: Automatic driving lights inoper-
ative...................................................... 448
_ Cannot fold 2nd seat row for-
wa rds See Owner's Manual .................... 460
Á Change key batteries .................... 446
J Check brake 0uid le vel.................. 470
ï Check trailer hitch lock (white
display message) .................................... 453
h Check tyre(s) ................................ 496
! Clean the fuel /lter....................... 463
Á Compressor is cooling .................. 486
ÿ Coolant Stop vehicle Switch
engine o............................................... 462
! currently una vailable See Own-
er's Manual............................................4 87÷
currently una vailable See Own-
er's Manual............................................4 88
5 Engine oil le vel cannot be meas-
ured....................................................... 503
5 Engine oil le velRe duce oil le vel..... 502
5 Engine oil le velSt op vehicle
Switch engine o.................................... 502
5 Engine oil pressure Stop Switch
o. engine.............................................. 503
ä Fault Drive at max. 80 km/h
...................................................... 483, 484
ä Fault Stop.................................... .484
6 Front leT malfunction Consult
wo rkshop (e xample)...............................4 43
& inoperative Battery low................. 451
& inoperative Refuel vehicle............. .451
& inoperative See Owner's Man........ 451
! inoperative See Owner's Manual.. .488
÷ inoperative See Owner's Manual.. .489
T inoperative See Owner's Manual.. .490 G
Inoperative................................... 491
î inoperative....................................4 75
: Intelligent Light System inopera-
tive........................................................ 449
Á Key being initialised Please wait.... 447
Á Key not de tected (red display
message).............................................. .447
Á Key not de tected (white display
message).............................................. .446
: LeT dipped beam (e xample).......... 448
6 LeT windowbag malfunction
Consult workshop (e xample).................. 443
 Lowe ring....................................... 485
: Malfunction See Owner's Man-
ual ......................................................... 448
î Max. speed 40 km/h .................... 476
ð Maximum speed exceeded ............ 475
î Not possible in cur rent drive
prog ram................................................. 475
Ø .................................................... 499 Index
527 527

Emerg
Emerg
ency call
ency call
see Mercedes-Benz emer gency call system
Eme rg
Emerg encykey
ency key
Inserting/ removing.................................. 83
Locking/unlocking the door s................... 88
Unlocking theta ilgate.............................. 95
Emerg
Emerg ency oper
ency oper ation mode
ation mode
St arting theve hicle............................... .192
Emerg
Emerg ency r
ency release
elease
Ta ilgate.................................................... 95
Emerg
Emerg ency spar
ency spar e wheel
e wheel
In0ating.................................................4 15
No tes..................................................... 414
Engine
Engine Engine number....................................... 423
Starting (emer gency ope ration mode ).... 192
St arting (Remo teOnline)........................ 193
Engine data
Engine data
Displaying............................................. .207
Engine electr
Engine electr onics
onics
No tes..................................................... 420
Engine number Engine number............................................. 423 Engine oil
Engine oil
Additives................................................ 430
Capacity................................................ 431
Checking the oil le vel using the on-
board computer.....................................3 67
MB-F reigabe or MB-Appr oval................. .431
Quality................................................... 431
To pping up............................................ .368
Ent Ent er
ering/e
ing/e xiting lev
xiting lev el
el
Setting................................................... 272
ERA
ERA -GL
-GLON
ONASS tASS t es
est modet mode
St arting/ending.................................... .354
Err
Err or message
or message
see Display message
ESC (Electr
ESC (Electr onicSt
onic Stability Contr
ability Contr ol)
ol)
see ESP ®
(Elect ronic Stability Prog ram)
ESP
ESP ®
®
Crosswind Assis t.................................... 233
Tr ailer stabilisatio n................................. 233
ESP
ESP ®
®
(Electr
(Electronic St
onic Stability Pr
ability Pr ogr
ogram)
am)
Ac tivating/deactivating.......................... 234
Fu nction/no tes...................................... 232
EU type approv
EU type appr oval number
al number ............................. 423 Ext
Ext
endable r
endable r unning boar
unning boar ds
ds ............................. 89
Ext
Ext endable st
endable st ep
ep
see Running boa rds
Ext
Ext er
erior lighting
ior lighting
Car e...................................................... 376
Ext
Ext er
erior lighting
ior lighting
see Lights F
F
F
F atigue det
atigue det ection
ection
see ATTENTION ASSIST
F
F ir
ir e e
e e xtinguisher
xtinguisher.......................................... 381
F
F irs
irst-aid kit t-aid kit (soT
(soTsided)
sided)................................. 381
Flacon
Flacon Inserting/removing................................ 182
Flat to
Flat towing
wing
see Tow- bar system
Flat tyre
Flat tyre MOExtended tyres................................. 382
Notes..................................................... 382
TIREFIT kit.............................................. 384
Wheel chang e........................................ 409
Floor mats
Floor mats................................................... 158 Index
533 533

F
F
og light (enhanced)
og light (enhanced) .................................... .164
F
F oil cov
oil cov er
ering
ing
Ra dar and ultrasonic sensor s................. 229
F
F olding t
olding t able
able................................................ 138
Fr
Fr agr
agr ance
ance
see Frag rance system
Fr
Fr agr
agr ance syst
ance syst em
em
Inserting/ removing the 0acon................1 82
Setting................................................... 182
Fr
Fr ee dr
ee dr iving mode
iving mode
St arting................................................ .280
Fr
Fr ee
ee soTw
soTw are
are................................................. 41
Fr
Fr eq
eq uencies
uencies
Mobile phone......................................... 421
Tw o-w ayradio........................................ 421
Fr
Fr ont airbag (dr
ont airbag (dr iv
iver
er , fr
, fr ont passeng
ont passeng er)
er).............. 48
Fr
Fr ont passeng
ont passeng er seat
er seat
Ad justing from the driver's seat.............. 111
Ad justing from there ar.......................... 112
Fr
Fr ont passeng
ont passeng er seat
er seat
see Seat F
F
uel
uel
Additives................................................ 427
Diesel.................................................... 427
E10........................................................ 426
Fu elreser ve........................................... 429
Low outside temp eratures...................... 427
Pe trol..................................................... 426
Quality (diesel )....................................... 427
Quality (petrol)....................................... 426
Re fuellin g.............................................. .216
Sulphur content..................................... 426
Ta nk content.......................................... 429
F F uel consump
uel consump tion indicat
tion indicator
or
Calling up.............................................. 208
F
F unction seat
unction seat
see Door cont rol panel
F
F unction seat (r
unction seat (r ear)
ear)
see Seat (rear)
F
F uses
uses
Before replacing a fuse.......................... 397
Fu se assignment diag ram. ...................... 397
Fu se box in the engine compartment......3 98
Fu se box in the front passenger foot-
we ll........................................................ 399 Fu
se box in the load compartment......... 399
Fu se box on the dashboar d.................... 399
No tes..................................................... 397 G
G
Gar
Gar ag
age door opener
e door opener
Clea ring the memory.............................. 225
Gar
Gar ag
age door openers
e door openers
Opening/closing the door......................2 25
Prog ramming buttons............................. 223
Re solving problems................................ 225
Syn chronising thero lling code................ 224
Gear
Gear shiT
shiT r
recommendation
ecommendation........................... 212
Genuine par
Genuine par ts
ts................................................ 23
Glide mode
Glide mode.................................................. 212
Glov
Glov e box
e box
Air vent.................................................. 188
Gr
Gr oss mass
oss mass.................................................. 423 H
H
Handbr
Handbr ake
ake
see Electric parking brake
Handling c
Handling c har
haract
acter
eris
istics (unusual)tics (unusual) ................ 400 534
534
Ind
ex

N
N
eutr
eutr al
al
Engaging................................................ 210
N
Noise oise
Wheels and tyres................................... 400
Wheels/tyres......................................... 400 O
O
Occupant safe
Occupant safe ty
ty
see Airbag
see Automatic co-driver airbag shuto.
see Automatic measures aTer an accident
see Child seat
see Pets in theve hicle
see Post-collision brake
see PRE-SAFE ®
(anticipa tory occu-
pant pr otection)
see PRE-SAFE ®
Impulse Side
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
see Restraint system
see Seat belt
O. -r
O.-r oad oadAssist
Assist
Setting................................................... 280
O. -r
O.-r oad
oaddr
driving
iving........................................... .198 O.-r
O.-r
oad
oaddr
driving
iving
see O.- road driving
O.-r
O.-r oad
oadESP
ESP®
®
(Electr
(Electr onicSt
onic Stability Pr
ability Pr o-
o-
gr
gr am)
am)
Switching on/o..................................... 234
O.-r
O.-r oad
oad light
light............................................... .164
O.r
O.r oad
oad Score
Score
Displaying.............................................. 208
Oil
Oil see Engine oil
On-boar
On-boar d com
d com put
puter
er
Displaying the service due dat e.............. 364
Head-up display menu............................ 313
Instrument display................................. 312
Menu overview.......................................3 10
Operating.............................................. 310
On-boar
On-boar d diagnos d diagnostics int tics interf
erface
ace
see Diagnostics connection
On-boar On-boar d electr d electrical syst
ical syst em batt
em batter
ery (12 V)
y (12 V)
Charging................................................ 391
Re placing.............................................. .392
St arting assis tance............................... .391 On-boar On-boar
d electr
d electronics
onics
Engine electronics................................. 420
No tes..................................................... 420
Tw o-w ayradios...................................... 420
on-demand f on-demand f eature
eature
Ac tivating................................................. 24
No tes...................................................... .24
Online ser
Online ser vices
vices
Data storag e............................................ 41
Online ser
Online ser vices
vices
see In-Car O1ce
Open-sour
Open-sour ce
cesoTw
soTw are
are.................................... 41
Opening t
Opening t he t
he tailg
ailgat
ate using y
e using y our f
our foot
oot
HANDS-FREE ACCESS............................. 93
Oper
Oper ating
ating 0uids
0uids
Ad Blue ®
................................................ .429
Ad ditives (fuel)....................................... 427
Brake 0uid............................................. 432
Coolant (engine).................................... 432
Engine oil............................................... 430
Fu el (diesel)........................................... 427
Fu el (petrol)........................................... 426
No tes..................................................... 425
windscreen washer 0uid........................ .433 Index
541 541