trailer MERCEDES-BENZ EQA SUV 2021 Owner's Guide

&
W
WARNI NG
ARNI NGRisk of accident due tolimited
saf ety-re lated functions during theto wing
process
Saf ety-re lated functions are limited or no lon-
ge rav ailable in thefo llowing situations:
R theve hicle is switched o..
R the brake system or po wer steering system
is malfunctioning.
R the energy supply or the on-board electri-
cal system is malfunctioning. #
In such cases, do not tow theve hicle. #
Transpo rttheve hicle (/ page 326).
* N
NOOTE
TE Damage tothe drive system due to
incor rect towing The
vehicle may not be towe d in thefo llowing
situations:
R theve hicle is switched o..
R the brake system or po wer steering system
is malfunctioning. R
the energy supply or the on-board electri-
cal system is malfunctioning. #
In such cases, do not tow theve hicle. *
N
NOOTE
TE Damage due toexcessive tractive
po wer If
yo u pull away sharpl y,the tractive po wer
may be too high and theve hicles could be
damaged. #
Pull away slo wlyand smoo thly. Loading t
Loading t
he v
he vehicle f
ehicle f or tr
or transport
anspo rt #
Obser vethe no tes on towing away
( / page 323). #
Connect theto wing device totheto wing eye
in order toload theve hicle. #
ShiT the transmission toposition i.
% The transmission may be loc ked in position
j intheev ent of damage tothe electrics. To
shiT toi , pr ovide the on-board electrical
system with po wer (/ page 323). #
Load theve hicle onto the transpor ter. #
ShiT the transmission toposition j. #
Use the electric parking brake tosecure the
ve hicle against rolling away. #
Only secure theve hicle bythe wheels.
V
V ehicles wit
ehicles wit h adap
h adaptiv
tiv e dam
e dam ping adjus
ping adjustment tment &
W
WARNING
ARNING Risk of an accident when trans-
porting vehicles with adaptive damping
adjustment
When transpo rting vehicles with adaptive
damping adjustment, theve hicle/trailer com-
bination may begin torock and start toskid. #
Load theve hicle cor rectly onto the
transpor ter. #
Secure theve hicle on all four wheels
with suitable tensioning straps. #
Do not exceed the maximum permissible
speed of 60 km/h when transporting. 326
326
Breakdown assistance

*
N
N O
OTE
TE Damage totheve hicle from secur-
ing it inco rrectly #
ATer loading, theve hicle must be
secured on all four wheels. Otherwise,
th eve hicle could be damaged. #
A minimum dis tance of 20 cm upwards
and 10 cm down wards must be kept to
th e transport platform. #
Secure theve hicle on all four wheels aTer
loading. #
Make sure that the front and rear axles come
to rest on the same transpor tation vehicle. *
N
NO OTE
TE Damage tothe drive train due to
incor rect positioning of theve hicle #
Do not position theve hicle abo vethe
connection point of the transport vehi-
cle. T
T
o
o wing ey
wing eye st
e st or
orag
ag e location
e location To
wing eye is under the load compartment 0oor. F
F
itting and r
itting and r emo
emoving t
ving t heto
he towing eye
wing eye #
Press the mark on co ver1 inwa rds and
re mo ve. #
Screw intheto wing eye clockwise as far as it
will go and tighten.
V
V ehicles wit
ehicles wit h a tr
h a trailer hitc
ailer hitc h:
h:vehicles with a trailer
hitch do not ha veare ar brac ketfo rth eto wing
ey e. Fasten theto w bar tothe trailer hitch. Breakdown assistance
327
327

#
Make sure that co ver1 engages in the
bumper when youre mo vetheto wing eye.
* N
NOOTE
TE Damage totheve hicle due toincor-
re ct use of theto wing eye or trailer hitch When a
towing eye or trailer hitch is used to
re co ver a vehicle, theve hicle may be damaged
in the process. #
Only use theto wing eye or trailer hitch to
to w awa y or tow start theve hicle. #
Do not use theto wing eye or trailer hitch
to to wtheve hicle during reco very. T
T
o
o w
w -st
-st ar
arting t
ting t he v
he vehicle
ehicle #
Ifth e drive system does not start, ha vethe
ve hicle transpor tedto aqu ali/ed specialist
wo rkshop, e.g. a Mercedes-Benz Se rvice
Centre. #
The drive system cannot be star tedby tow-
starting theve hicle. Do not per form any
attem ptsto to w-start theve hicle. Electr
Electr
ical fuses
ical fuses N
No
ot
tes on electr
es on electr ical fuses
ical fuses &
W
WARNING
ARNING Risk of accident and injury due
to ove rloaded lines
If yo u manipulate or bridge a faulty fuse or if
yo ure place it with a fuse with a higher amper-
age, the electric line could be overloaded.
This could result in a /re. #
Alwaysre place faulty fuses with speci-
/ed new fuses containing the cor rect
amperage. *
N
NOOTE
TE Damage due toincor rect fuses Electrical components or systems may be
damaged
byincor rect fuses, or their function-
ality may be signi/cantly impaired. #
Only use fuses that ha vebeen appr oved
by Mercedes-Benz and which ha vethe
cor rect fuse rating. Blown fuses must be
replaced with fuses of the
same rating, whi chyou can recognise bythe col- our and
the label. The fuse ratings and fur ther
information tobe obser ved can be found in the
fuse assignment dia gram.
F F use assignment diagr
use assignment diagr am:
am:onthe fuse box in the
engine compartment (/ page 329).
* NO
NO TE
TEDamage or malfunctions caused by
moisture Moisture may cause damage
tothe electrical
system or cause it tomalfunction. #
When the fuse box is open, make sure
th at no moisture can enter the fuse box. #
When closing the fuse box, make sure
th at the seal of the lid is positioned cor-
re ctly on the fuse box. If
th e ne wlyinser ted fuse also blo ws, ha vethe
cause traced and recti/ed at a quali/ed specialist
wo rkshop.
Ensure thefo llowing before replacing a fuse:
R The vehicle is secured against rolling away.
R All electrical consume rsare switched o..
R The vehicle is switched o.. 328
328
Breakdown assis
tance

All
ot
All other models
her models
Char getime – mode 4
with app rox. 100 kW charging
capacity App
rox. 30
min
Char getime – mode 3
with 11 kW charging capacity
(depending on the condition of
th eve hicle body) App
rox. 5 h
45 min
Char getime – mode 2
with 3.7 kW charging capacity App
rox. 18 h
15 min
Char getime – mode 2
with 2.3 kW charging capacity App
rox. 30 h Charging times – modes 2 and 3 apply
toAC
ch arging from 10% to100% of the usable energy
content.
Charging time – mode 4 applies toDC charging
from 10% to80% of the usable energy content.
The time take nto charge the battery depends on
th ech arge status of the batter y,the ambient tem-
perature and thech arging capacity of the batter y.The
charging capacit y,in turn, depends on the
supply voltage, the cur rent intensity and the type
of po wer suppl y.
The nominal voltage range foryo ur vehicle can be
fo und on the information label in the soc ket co ver
( / page 163). T T
r
railer hitch
ailer hitch Gener
Gener
al not
al notes on t
es on t he tr
he trailer hitch
ailer hitch Modi/cations
tothe engine cooling system may
be necessar y,depending on theve hicle model.
The retro/tting of a trailer hitch is on lypermissi-
ble if a towing capacity is speci/ed in your vehicle
documents.
Fu rther information can be obtained at a quali/ed
specialist workshop. Mounting dimensions of t Mounting dimensions of t
he tr
he tr ailer hitch
ailer hitch 1
Fastening points
2 Overhang dimension
3 Rear axle cent reline 356
356
Te
ch nical data

The
overhang dimension and fastening points are
va lid for a trailer hitch installed at thefa ctor y.
Ov
Ov er
erhang dimension leng th
hang dimension length Model Model
2 2Ov
Over
erhang
hang
dimension
dimension
All model s9 45 mmT
T
o
o wing capacity
wing capacity %
The tongue weight is not included in theto w-
ing capacity.
The values forth e trtrailer load, br ailer load, br ak
aked
ed apply
with a minimum start-o. gradeability of 12%.
To
To wing capacity
wing capacity , br
, brak
aked
ed Model
Model
All model
s1 800 kgT T
o
o wing capacity
wing capacity , unbr
, unbrak
aked
ed Model
Model
All models
750 kg Maximum t Maximum t
ongue w
ongue w eight and load capacity
eight and load capacity *
N
NOOTE
TE Damage caused bythe trailer com-
ing loose If
th eto ngue weight used is too lo w,the trailer
may come loose. #
The tongue weight must not be below
50 kg. #
Use a tongue weight that is as close as
possible tothe maximum permissible
to ngue weight. *
N
NOOTE
TE Damage caused bythe bicycle rack
coming loose When using a bicycle
rack , bo th th e maximal
to ngue weight and the maximal load capacity
should be obser ved. #
Do not exceed the permissible load
capacity. Obser
vethe additional no tes on load capacity
(/ page 241). T
T
ongue w
ongue w eight
eight Model
Model
Maximum t
Maximum tongue
ongue
w
w eight
eight
All model s8 0 kg Load capacity
Load capacity
All models
All models
Maximum load
Maximum load
When attaching the
bicycle rack tothe ball
head 75 kg
When attaching the
bicycle rack tothe ball
head and additionally
to the guide pin 100 kg P P
er
er missible r
missible r ear axle load (tr
ear axle load (tr ailer oper
ailer operation)
ation) T
T
r
railer oper
ailer oper ation axle load
ation axle load Model
Model
Axle load
Axle load
All models 1465 kg Te
ch nical data
357
357

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Place the key in the
marked space See Owner's
Manual *K
eydetection is malfunctioning. #
Change the location of theke y in theve hicle. #
Place theke y in the slot for starting the engine with theke y (/ page 151). Lights Lights
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences andM
MSolutions
Solutions
:
Left dipped beam (examp le) *T
he cor responding light source is defecti ve. #
Drive on carefull y. #
Consult a quali/ed specialist workshop immediatel y.
% LED light sources: the display message forth e cor responding light appears only when all the light-emitting diodes
in the light are faulty.
: Malfunction See Owner's
Manual *T
heexterior lighting is malfunctioning. #
Consult a quali/ed specialist workshop.
*V Vehicles wit ehicles wit h a tr
h a trailer hitc
ailer hitc h:
h:a fuse may ha veblown. #
Stop theve hicle in accordance with the tra1c conditions. #
Check the fuses and replace them if necessary (/ page 328).364
364
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 #
Drive on carefull y. #
Consult a quali/ed specialist workshop.
v
Towing not permitted See
Owner's Manual *T
he drive system is malfunctioning. #
Have theve hicle transpo rted only using a transpor ter or trailer (/ page 323).
ò Acoustic presence indica-
tor inoperative *T
he sound generator (acoustic vehicle warning system) is malfunctioning. No driving noises are being produced. The
ve hicle may not be heard by otherroad users. #
Drive with particular care. #
Consult a quali/ed specialist workshop.
To switch off the engine,
press the Start/Stop but-
ton for at least 3 seconds
or 3 times. *Y
ou ha vepressed the start/s top button while theve hicle is in motion. #
Toswitch o. the drive system while theve hicle is in motion (/ page 151).368 368
Displ
aymessages and warning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
High-voltage battery main-
tenance required urgently.
Without engine restart, con-
sult workshop *A
malfunction has occur red in the high-voltage batter y.
It will no lon ger be possible torestart the drive system once it has been switched o.. #
Do not switch o. the drive system; drive on tothe nearest quali/ed specialist workshop. V V
ehicle
ehicle Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences andM
MSolutions
Solutions
d
Vehicle is operational
Switch off ignition before
exiting *Y
ou are leaving theve hicle in a ready-to-drive state. #
Get out of theve hicle, secure it against rolling away and take theke y with you. #
Ifyo u do not lea vetheve hicle, switch o. the electrical consumers, e.g. the seat heating. Otherwise, the 12‑V bat-
te ry may dischar geand starting the engine may be possible only with the help of a second battery (jump start).
ï
Check trailer hitch
lock (white display message) *T
he trailer hitch is not operational during a jou rney with a trailer. &
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. 376
376
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 #
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. #
Initiate a new swivel mo vement (/ page 238). #
When the display message disappears, couple up the trailer and drive on.
If th e display message does not disappear, the trailer hitch is malfunctioning and the ball neck is not loc ked. #
Do not couple up the trailer. Drive on without the trailer. No tethere duced ground clearance due tothe unloc ked
ball nec k. #
Consult a quali/ed specialist workshop.
*W hen theve hicle is stationary with a coupled trailer, the trailer hitch is not operational. #
Uncouple the coupled trailer and secure it against rolling away. #
If t
If the ball nec
he ball nec k has been f
k has been f olded in:
olded in:unlockthe ball neck (/ page 238). #
Swivel the ball neck into the end position manually and let it engage. #
If t If the ball nec he ball nec k has been f
k has been f olded out
olded out::unlock the ball neck (/ page 238). #
Swivel the ball neck beneath the bumper manually and let it engage.
If th e display message does not disappear, the trailer hitch is malfunctioning and the ball neck is not loc ked. #
Do not couple up the trailer. Drive on without the trailer. No tethere duced ground clearance due tothe unloc ked
ball nec k. Display messages and
warning/indicator lamps
377
377

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra1c conditions and restart
th eve hicle.
Blind Spot Assist inopera-
tive *B
lind Spot 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.
Blind Spot Assist not availa-
ble when towing a trailer
See Owner's Manual *W
hen you establish the electrical connection tothe trailer, Blind Spot Assist will be una vailable. #
Press the leT-hand Touch Control and ackno wledge the display message.
Active Blind Spot Assist
currently unavailable See
Owner's Manual *A
ctive Blind Spot Assist is temp orarily una vailable.
The system limits ha vebeen reached (/ page 216).
Once the cause of the problem is no longer present, the system will be available again. #
Drive on
or #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra1c conditions and restart
th eve hicle.
Active Blind Spot Assist
inoperative *A
ctive Blind Spot Assist is malfunctioning. 394 394
Display messages and
warning/indicator lamps