trailer MERCEDES-BENZ EQA SUV 2021 Service Manual

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Drive on
or #
Stop theve hicle in accordance with the tra1c conditions and restart theve hicle. #
Ifth e display message does not disappear: consult a quali/ed specialist workshop.
Active Blind Spot Assist
not available when towing
a trailer See Owner's Man-
ual *W
hen you establish the electrical connection tothe trailer, Active Blind Spot Assist will be una vailable. #
Press the leT-hand Touch Control and ackno wledge the display message.
Active Lane Keeping Assist
currently unavailable See
Owner's Manual *A
ctive Lane Keeping Assist is temp orarily una vailable.
The ambient conditions are outside the system limits (/ page 219).
As soon as the ambient conditions are within the system limits, the system will become available again. #
Drive on
Active Lane Keeping Assist
inoperative *A
ctive Lane Keeping Assist is malfunctioning. #
Drive on
or #
Stop theve hicle in accordance with the tra1c conditions and restart theve hicle. #
Ifth e display message does not disappear: consult a quali/ed specialist workshop. Displ
aymessages and warning/indicator lamps
395 395

Indicat
Indicat
or and w
or and w ar
arning lam
ning lam ps:
ps:
6 Restraint system (/ page 410)
ü Seat belt (/ page 410)
_ Reduced po wer (/ page 411)
Ú System error (/ page 411)
# Electricalfault (/ page 411)
ï Trailer hitch (/ page 412)
Ù Powe r steering (/ page 412)
# Electricalfault
! Electric parking brake (red)
(/page 414)
! Electric parking brake (yellow)
(/page 414)
J Brakes (yellow) (/ page 414)
J Brakes (red) (/ page 414)
L Distancewarning (/ page 416)
Ó Active Brake Assist (/ page 416)
ê Active Brake Assist (/ page 416)
! ABS (/page 417)
÷ ESP®
(/ page 417) å
ESP®
OFF (/ page 417)
h Tyre pressure monitoring system
(/ page 419)
T Standing lights (/ page 130)
L Low beam (/ page 130)
K High beam (/ page 131)
#! Turn signal lights (/ page 131)
R Rear fog light (/ page 130) Display message
s andwarning/indicator lamps
409 409

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. &
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. Display messages and
warning/indicator lamps
413
413

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).............. 358
No tes..................................................... 358
Displa Displa y messag
y messag es
es
ç - - - km/h.................................... .389
È - - - km/h..................................... 389
h - - - km/h..................................... 388
# 12 V battery See Owner's Man-
ual......................................................... 374
ò Acoustic presence indicator
inoperative............................................ .368
é ATTENTION ASSIST inoperati ve..... 387
é ATTENTION ASSIS T:Take a
break!.................................................... 388
: Automatic driving lights inoper-
ative...................................................... 365
Û Battery overheated Stop, every-
body out! Outdoors if possible ................ 373
Á Change key batteries .................... 362 è
Charger cable connected .............. 370
J Check brake 0uid le vel.................. 386
ï Check trailer hitch lock (white
display message) .................................... 376
h Check tyre(s) ................................ 405
ÿ Coolant Stop vehicle Switch
engine o............................................... 369
! currently una vailable See Own-
er's Manual............................................3 99
÷ currently una vailable See Own-
er's Manual............................................4 00
ä Fault Drive at max. 80 km/h ......... 398
6 Front leT malfunction Consult
wo rkshop (e xample)...............................3 59
& inoperative Char geHV battery...... 366
& inoperati veHigh-voltage battery
ch arging inco mplete ............................... 366
! inoperative See Owner's Manual... 400
÷ inoperative See Owner's Manual... 401
T inoperative See Owner's Manual... 402 G
Inoperative................................... 403
Á Key being initialised Please wait.... 363
Á Key not de tected (red display
message).............................................. .363
Á Key not de tected (white display
message).............................................. .363
: LeT dipped beam (e xample).......... 364
6 LeT windowbag malfunction
Consult workshop (e xample).................. 360
: Malfunction See Owner's Man-
ual.........................................................3 64
d Malfunction Visit workshop ........... 375
Û Malfunction Visit workshop ........... 373
d Malfunction.................................. 374
Û Malfunction.................................. 373
ð Maximum speed exceeded ............ 391
ç O................................................. 390
ë O................................................. 387
! Parking brake See Owner's
Manual..................................................3 83428 428
Index

d
Performance se verely limited........ 367
& Pre-entry climate control (via
ke y) available again aTer engine start..... 366
& Pre-ent ryclimate cont rol (via
ke y) inoperati veHV-battery low .............. 367
h Rectify tyre pressure ..................... 406
! Release parking brake ...................386
Á Replace key.................................. 362
ô Reser veleve l Char gehigh- volt-
age battery............................................ 374
6 Restraint sys. malfunction Con-
sult workshop ....................................... .359
Ù Steering malfunction Increased
ph ysical e.ort See Owner's Manual....... 378
Ù Steering malfunction Stop
immediately See Owner's Manual ........... 379
Û Stop immediately Drive will be
deactivated Char gehigh- volt. battery ..... 372
d Stop Switch engine o................... 375
ç suspended .................................... 389 :
Switch o. lights............................ 365
: Switch on headlamps .................... 365
á temp orarily una vailable Camera
view restric ted....................................... 397
¸ temp orarily una vailable Sensors
dirty....................................................... 396
+ Top up coolant See Owner ’s
Manual.................................................. 369
¥ Top up washer 0uid...................... .380
v Towing not permitted See Own-
er's Manual ............................................ 368
! Turn on the ignition torelease
th e parking brake ................................... 386
d Vehicle is operational Switch o.
ignition before exiting............................. 376
h Warning tyre defect....................... 406
h Wheel sensor(s) missing ................ 405
AC charging inoperative Consult work-
shop ...................................................... 371 Ac
tive Blind Spot Assist cur rently
una vailable See Owner's Manual ............ 394
Ac tive Blind Spot Assist inoperative........ 394
Ac tive Blind Spot Assist not available
when towing a trailer See Owner's
Manual................................................. .395
Ac tive bonnet malfunction See Own-
er's Manual............................................ 379
Ac tive Brake Assist Functions cur-
re ntly limi ted See Owner's Manual .........402
Ac tive Brake Assist Functions limited
See Owner's Manual.............................. 403
Ac tive Distance Assist available again ..... 391
Ac tive Distance Assist cur rently
una vailable See Owner's Manual ............ 390
Ac tive Distance Assist inoperative.......... 390
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual ............ 395
Ac tive Lane Keeping Assist inoperative... 395 Index
429 429

Ac
tive Steering Assist cur rently
una vailable due tomultiple emer-
ge ncy stops........................................... 392
Ac tive Steering Assist cur rently
una vailable See Owner's Manual ............ 392
Ac tive Steering Assist inoperative...........3 92
Anti-theT alarm system Malfunction ....... 380
Apply brake todeselect Park (P) posi-
tion....................................................... .381
Apply brake toselect D or R ...................381
Apply brake toselect R .......................... 381
Beginning emer gency stop..................... 392
Blind Spot Assist cur rently una vailable
See Owner's Manual.............................. 393
Blind Spot Assist inoperative.................. 394
Blind Spot Assist not available when
to wing a trailer See Owner's Manual ...... 394
Cann otstart engine See Owner's
Manual................................................. .404 Charging
fault Please change charging
me thod See Owner's Manual .................371
Charging me thod cur rently una vaila-
ble Please try again or change charg-
ing me thod............................................ 371
Check brake pads See Owner's Man-
ual........................................................ .387
Cruise control and Limiter inoperative.... 388
Cruise control inoperative...................... 388
Cruise control o.................................... 388
DC charging inoperative Consult
wo rkshop ............................................... 371
Device de tected at diagnostics con-
nection See Owner's Manual................. .404
Fr ont-passenger airbag disabled See
Owner's Manual .................................... .360
Fr ont-passenger airbag enabled See
Owner's Manual .................................... .361
Hazard warning lamps malfunctioning .... 365Head-up display cur
rently una vailable
See Owner's Manual.............................. 378
Head-up display inoperative ...................378
High-voltage battery maintenance
re qu ired ur gentl y.No start in approx.
XXX km (red display message) ............... 375
High- voltage battery maintenance
re qu ired ur gentl y.No start in approx.
XXX km (yellow display message) ........... 375
High- voltage battery maintenance
re qu ired ur gentl y.Wi thout engine
re start, consult workshop ....................... 376
Limi ter inoperative................................. 389
Limiter passive....................................... 389
N permanently active Risk of vehicle
ro lling....................................................3 82
Not possible tounlock charging cable
See Owner's Manual.............................. 370
Only select Park (P) when vehicle is
stationary.............................................. 381 430 430
Index

Dr
Dr
iv
ive syst
e syst em
em
Manual switch-o.................................... 148
St arting (emer gency ope ration mode ).... 151
Dr
Dr iv
iver's seat
er's seat
see Seat
Dr
Dr iving abr
iving abroad oad
Light adjustment (low beam ).................. 130
Dr
Dr iving safe
iving safe ty syst
ty system
em
ABS (Anti-lock Braking System).............. 190
Ac tive Brake Assist................................. 208
Ad aptive brake lights.............................. 194
BAS (Brake Assist System).................... .190
Cameras................................................1 88
EBD (Electronic Brake forc e Distribu-
tion).......................................................1 92
ESP ®
Crosswind Assist.......................... 191
ESP ®
trailer stabilisation........................ 192
Overview................................................ 189
Ra dar and ultrasonic sensor s................. 188
Re sponsibility......................................... 188
ST EER CONTROL................................... 192
Dr Dr iving syst
iving syst em
em
Suspension with adaptive damping
adjustment............................................ 222 Dr
Dr
iving syst
iving syst em
em
see 360° Camera
see Active Blind Spot Assist
see Active Distance Assist DISTRONIC
see Active Emer gency Stop Assist
see Active Lane Keeping Assist
see Active Parking Assist
see Active Speed Limit Assist
see Active Steering Assist
see ATTENTION ASSIST
see Blind Spot Assist
see Cr awler mode
see Cruise control
see Driving saf ety sy stem
see HOLD function
see Limi ter
see Parking Assist PARKTRONIC
see Reversing camera
see Speed Limit Assist
see Tra1c Sign Assist
Dr
Dr iving tips iving tips
Ac oustic presence indicator (sound
ge nerator).............................................. 148
Driving abroad (low beam light adjust-
ment)..................................................... 130 Electric mod
e......................................... 148
General driving tips................................ 152
Ru nning-in no tes.................................... 152
Dr Dr iving tips
iving tips
see Recuperation
Dr ow
Dr ow siness det
siness det ection
ection
see ATTENTION ASSIST
Dynamic handling contr
Dynamic handling contr ol syst
ol system
em
see ESP ®
(Electronic Stability Prog ram)
D
D YN
YNAMIC SELECT AMIC SELECT
Ad aptive damping adjustmen t................222
Con/guring drive prog ram I................... .160
Displaying engine data........................... 161
Displaying vehicle dat a........................... 161
Drive prog ram displa y............................ 160
Drive prog rams..................................... .158
Fu nction................................................ 158
Ope rating (DYNAMIC SELECT switch)..... 160
Selecting the drive prog ram.................. .160 E E
Easy entr
Easy entr y f
y feature
eature
Fu nction/no tes...................................... 111
Setting.................................................. .112 432
432
Index

Suspension
Suspension
Adaptive damping adjustmen t................222
Damping characteristics........................ .222
S
S VHC (subst
VHC (subst ances of v
ances of ver
ery high concer
y high concer n)
n)........38
Switc
Switc h-o.
h-o.dela
delay time
y time
Exterior.................................................. 132
Interior.................................................. .134
Sync Sync hr
hronisation function
onisation function
Ac tivating/deactivating (MBUX multi-
media system)....................................... 144
Syst
Syst em se
em se ttings
ttings
Overview of the system settings menu.... 259
Re set function (MBUX multimedia sys-
te m)....................................................... 263
Syst
Syst em se
em se ttings
ttings
see Language T
T
T
T ailg
ailg ate
ate
Closing................................................... .88
HANDS-FREE ACCESS............................. 90
Limiting the opening angle....................... 91
Opening................................................... 87
Unlocking (emer gency key)...................... 92 T
T ak
ak e-bac
e-bac k of end-of-lif
k of end-of-lif e v
e vehicles
ehicles
Pr otection of the environment.................. 23
T
T ec
ec hnical data
hnical data
Axle load (trailer operation).................... 357
Component-speci/c information............ 349
Fa stening points (t railer hitch)................ 356
Information............................................3 47
Mounting dimensions (trailer hitch)........3 56
No tes (trailer hitch)................................ 356
Overhang dimension (trailer hitch)......... .356
Re gula tory radio identi/cation (Indo-
nesia).................................................... 349
Re gula tory radio identi/cation of
small component s.................................. 349
To ngue weight........................................ 357
To wing capacity (trailer operation ).......... 357
T
T elephone elephone
Connecting a mobile phone (Passke y).... 276
Connecting a mobile phone (Secure
Si mp lePa iring)....................................... 276
Fu nctions in thete lephone menu............ 276
No tes..................................................... 272
No tes on wireless charging (mobile
phone)................................................... 127
Operating modes................................... 275 Te
lephone menu overview......................2 75
Wi reless charging (mobile phone)........... 128
T
T elephon elephon y oper
y operating modes
ating modes
Blu etoo th®
telephony............................. 275
T
T em
em per
per ature
ature................................................ 142
Themes
Themes Fastening.............................................. .258
Thr
Thr ough-loading f
ough-loading f eature
eature
see Seat
T
T ie-do
ie-do wney
wn eyes
es.............................................. 122
TIREFIT kit
TIREFIT kit Declaration of conformity......................... 35
Storage location.................................... .314
Using..................................................... 315
T T o switc
o switc h on t
h on the ignition
he ignition
see Vehicle
T
T ongue w
ongue w eight
eight.............................................. 357
T
T ool
ool
see Vehicle tool kit
T
T op Tet
op Tether
her...................................................... 69
T
T ouc
ouc h Contr
h Contr ol
ol
On-board computer................................ 246 446
446
Index

Operating.............................................
.252
T
T ouc
ouc hpad
hpad
Operating.............................................. 252
T
T ouc
ouc hscr
hscr een
een
Operating.............................................. 252
Tow
Tow -awa
-a wa y pr ot
y pr otection
ection
Fu nction................................................ 100
Priming/deactivating............................. 101
Tow
Tow -bar syst
-bar syst em
em............................................ 243
Tow
Tow -st
-star
arting
ting................................................. 328
To
To wing away
wing away................................................. 324
To
To wing eye
wing eye
Fi tting.................................................... 327
St orage location..................................... 327
To
To wing met
wing met hods
hods.......................................... .323
Tr
Tr a1c
a1c inf
infor
ormation
mation
Switching on the display......................... 269
Tr
Tr a1c
a1c Sign Assist
Sign Assist
Fu nction/no tes...................................... 214
Setting................................................... 216
System limits......................................... 214 T
T r railer hitch
ailer hitch
Axle load................................................ 357
Bic ycle rack ........................................... 241
Care...................................................... 307
Coupling up/uncoupling a trailer............ 239
Fa stening points.................................... 356
Fo lding the ball neck out/in................... 238
General no tes....................................... .356
Mounting dimensions............................. 356
No tes..................................................... 237
Overhang dimension.............................. 356
Soc ket................................................... 239
To ngue weight........................................ 357
To wing capacity.................................... .357
Tr Tr ailer oper
ailer oper ation
ation
Ac tive Blind Spot Assist.......................... 218
Ac tive Lane Keeping Assist..................... 219
Bicycle rack ........................................... 241
Coupling up/uncoupling a trailer............ 239
Fo lding the ball neck out/in................... 238
No tes..................................................... 237
Soc ket................................................... 239
Tr Tr ailer st ailer st abilisation
abilisation
Fu nction/no tes...................................... 192 T
T
r
ransmission
ansmission
Cr aw ler mode........................................1 94
DIRECT SELECT le ver............................. 161
Drive prog ram displa y............................ 160
Engaging drive position.......................... 163
Engaging neutral.................................... 162
Engaging park position........................... 162
Engaging reve rsege ar............................ 162
Tr ansmission position displ ay................. 161
Tr ansmission position s........................... 161
Tr Tr ansmission position displ ay
ansmission position displ ay....................... 161
Tr
Tr anspor
anspor ting
ting
Ve hicle.................................................. 326
Tr
Tr im element (Car
im element (Car e)
e)...................................... 308
T
T uneIn
uneIn
Calling up.............................................. 296
T
T ur
ur n signal indicat
n signal indicat or
or
Ac tivating/deactivating.......................... 131
Tw
Tw o-wa
o-wa y r
y radios
adios
Fr equencies........................................... 348
No tes on ins tallation.............................. 347
Tr ansmission output (maximum )............. 348
T
T ype approv
ype appr oval number (EU)
al number (EU) ........................... 349 Index
447
447

J
Brake system warning lamp (yel-
low)....................................................... 414
! Electric parking brake indicator
lamp (red).............................................. 414
# Electrical fault warning lam p......... 412
å ESP®
OFF warning lam p................ 418
÷ ESP®
wa rning lamp 0ashes........... 417
÷ ESP®
wa rning lamp lights up......... 418
Ù Powe r steering warning lamp
(red)...................................................... 412
_ Reduced warning lamp po wer....... 411
6 Restraint system warning lam p...... 410
ü Seat belt warning lamp 0ashes...... 410
ü Seat belt warning lamp lights up.... 411
Ú System er rorwa rning lam p........... 411
! The electric parking brake (yel-
low) indica tor lam p................................. 414
ï Trailer tow hitch warning lam p....... 413
h Tyre pressure monitoring sys-
te m wa rning lamp 0ashes....................... 419 h
Tyre pressure monitoring sys-
te m wa rning lamp lights up.................... 420
L Warning lamp for distance
wa rning function.................................... 416
Overview................................................ 408
PA SSENGER AIR BA G............................... 54
W
W arr arr anty
anty........................................................ 39
W
W ashing b
ashing b y hand (car
y hand (car e)
e)................................ 305
W
W at
at er t
er t ank
ank
see Air-water duct
W
W eat
eat her inf
her inf or
ormation
mation ..................................... 269
W
W eb br ow
eb br owsers
sers
Overview................................................ 283
Wheel c
Wheel c hange
hange
Fi tting a new wheel................................ 343
Lo we ring theve hicle.............................. 344
Preparation............................................ 340
Ra ising theve hicle................................. 341
Re moving a wheel................................. .343
Wheel c
Wheel c hange hange
see Emer gency spa rewheel
Wheel rot
Wheel rotation
ation ............................................. 339 Wheels
Wheels
Care..................................................... .307
Checking............................................... 332
Checking the tyre pressure (tyre pres-
sure monitoring system)......................... 335
Fi tting.................................................... 343
Flat tyre................................................. 313
Inter changing......................................... 339
MOExtended tyres................................. 313
Noise..................................................... 332
No tes on /tting...................................... 336
Re moving............................................... 343
Re placing...................................... .336, 340
Re starting the tyre pressure monitor-
ing system............................................. 336
Selection...............................................3 36
Snow chains.......................................... 332
St oring................................................... 340
TIREFIT kit.............................................. 315
Ty re pressure (No tes)............................. 333
Ty re pressure monitoring system
(function)............................................... 335
Ty re pressure table................................ .334
Unusual handling characteristics............ 332 450 450
Index