trailer MERCEDES-BENZ EQA SUV 2021 Owner's Manual

Ac
tive Parking Assist will be cancelled in thefo l-
lowing situations:
R Parking Assist PARKTRONIC is deactivated.
R You begin steering.
R You apply the parking brake.
R You engage transmission position j.
R ESP ®
inter venes.
R You open the doors or theta ilgate while driv-
ing.
Syst
Syst em limits
em limits
If th eex terior lighting is malfunctioning, Active
Pa rking Assist is not available.
Objects located abo veor below the de tection
ra nge of the sensors, e.g. overhanging loads,
ove rhangs or loading ramp s of goods vehicles, or
th e borders of parking spaces, are not de tected
during measurement of the parking space. These
are also then not take n into account when calcu-
lating the parking procedure. In some circumstan-
ces, Active Parking Assist may therefore guide
yo u into the parking space incor rectl y. &
W
WARNI NG
ARNI NGRisk of accident due toobjects
located abo veor below the de tection
ra nge of Active Parking Assist
If th ere are objects abo veor below the de tec-
tion range, thefo llowing situations may arise:
R Active Parking Assist may steer too ear ly.
R The vehicle may not stop in front of these
objects.
There is a danger of collision! #
Inthese situations, do not use Active
Pa rking Assist. Extreme
weather conditions, such as snow or
heavy rain, may lead toa parking space being
measured inaccuratel y.Pa rking spaces that are
partial lyoccupied bytrailer dr awbars might not be
identi/ed as such or be measured incor rectl y.
Only use Active Parking Assist on le vel, high-g rip
gr ound.
Do not use Active Parking Assist in thefo llowing
situations:
R Inextreme weather conditions such as ice,
pac ked snow or in heavy rain. R
When transporting a load that pr otru des
be yond theve hicle.
R On steep uphill or downhill gradients of more
th an appr oximately 15%.
R When snow chains are /tted.
R When a trailer or bicycle rack is attached.
R Directly aTer a tyre change or when spare
tyres are /tted.
R Ifth e tyre pressure is too low or too high.
R Ifth e suspension is out of alignment, e.g. aTer
bottoming out on a kerb.
Ac tive Parking Assist may also display parking
spaces that are not suitable for parking, such as:
R Parking spaces where parking is prohibited.
R Parking spaces on unsuitable sur faces. Driving and parking
233
233

mals or objects
etc. are in the manoeuvring
ra nge.
A risk of collision may occur in thefo llowing situa-
tions, forex ample:
R Ifth e accelerator and brake pedals are inter-
ch anged.
R If an inco rrect transmission position is
engaged.
Drive Away Assist is active under thefo llowing
conditions:
R IfPa rking Assist PARKTRONIC is activated.
R Ifyo u shiT the transmission position tok or
h when theve hicle is stationar y.
R Ifth e de tected obs tacle is less than appr ox.
1.0 m away.
R Ifth e manoeuvring assistance function is acti-
va ted in the multimedia system.
Syst
Syst em limits
em limits
The per form ance of Drive AwayAssist is limited
on inclines.
When driving with a trailer, Drive AwayAssist is
not available. %
Also obser vethe system limits of Parking
Assist PARKTRONIC (/ page 228).
F
F unction of Cr unction of Cr oss
ossTr
Tra1c
a1c Alert
Alert
% Cross Tra1c Ale rtis only available forve hicles
with Blind Spot Assist or Active Blind Spot
Assist.
Cross Tra1c Ale rtcan warndrivers of any cross-
ing tra1c when reve rsing and manoeuvring out of
a parking space. The radar sensors in the bumper
also monitor the area adjacent totheve hicle. If a
critical situation is de tected, theL symbol
appears in the media display and theve hicle can
be braked automaticall y.
If th era dar sensors are obstructed byvehicles or
ot her objects, de tection is not possible.
Cross Tra1c Ale rtis active under thefo llowing
conditions:
R ifth eve hicle is reve rsing at a walking pace.
R manoeuvring assista nce is activated
(/ page 237).
% Also obser vethe inst ructions on Blind Spot
Assist and Active Blind Spot Assist
(/ page 216). Syst
Syst em limits
em limits
Cross Tra1c Ale rtis not available on inclines.
Cross Tra1c Ale rtis not available when driving
with a trailer.
A A ctiv
ctiv ating/deactiv
ating/deactiv ating manoeuvr
ating manoeuvr ing assist
ing assistant
ant
Multimedia system:
4 © 5
Settings 5
Assistance
5 Camera & parking #
Activate/deactivate Manoeuvring assistance.
% Manoeuvring assistant must be acti veforthe
function of Drive AwayAssist (/ page 236)
and Cross Tra1c Ale rt (/ page 237). T
T
r
railer hitch
ailer hitch N
No
ot
tes on tr
es on tr ailer oper
ailer oper ation
ation Obser
vethefo llowing no tes on theto ngue weight:
R Do not use a tongue weight that exceeds or
fa lls below the permissible tongue weight
R Use a tongue weight as close as possible to
th e maximum tongue weight Driving and parking
237
237

Do not
exceed thefo llowing values:
R Perm issible towing capacity
R Perm issible rear axle load of theto wing vehi-
cle
R Perm issible gross weight of theto wing vehicle
R Perm issible gross weight of the trailer
R Maximum permissible speed of the trailer
Ensure thefo llowing before starting a journe y:
R The tyre pressure on there ar axle of theto w-
ing vehicle is set for a maximum load
R The lighting of the connected trailer is opera-
tional
R V
V ehicles wit
ehicles wit hout LED headlam
hout LED headlam ps or MUL
ps or MULTI-
TI-
BEAM LED headlam
BEAM LED headlam ps:
ps: the headlamps ha ve
been set cor rectly
In theev ent of increased rear axle load, the car/
trailer combination must not exceed a maximum
speed of 100 km/h forre asons conce rning the
operating permit. This also applies in countries in
which the permissible maximum speed for car/
trailer combinations is abo ve100 km/h. F F
olding t
olding t he ball nec
he ball nec k out and in
k out and in &
W
WARNING
ARNING Risk of accident due tothe ball
neck not being engaged
If th e ball neck is not engaged, the trailer may
come loose. #
Always engage the ball neck as descri-
bed. &
W
WARNING
ARNING Risk of injury from ball neck
swinging outwards
The ball neck may swing outwards when
unlocking or when it has not been proper ly
engaged.
There is a risk of injury within the ball neck's
ra nge of mo vement! #
Unlock the ball neck only when its range
of mo vement is unobstructed. #
Always be sure the ball neck is engaged
when folding in wards. *
N NOOTE
TE Increased risk of damage toprop-
erty due tofolded-out ball neck #
When the trailer is not coupled or the
bicycle rack is attached, fold in the ball
neck or, in the case of a fully electric
trailer hitch, retract the ball nec k. *
N
NO
OTE
TE Damage totheve hicle due toincor-
re ct use of the trailer hitch When a trailer hitch is used
toreco ver a vehi-
cle, theve hicle may be damaged in the proc-
ess. #
Use the trailer hitch only for pulling a
trailer or attaching appr oved car rier sys-
te ms (e.g. a bicycle rack ). R
R
eq
eq uir
uir ements:
ements:
R The vehicle is secured against rolling away.
R The swivel range is clear.
R The trailer cables or ada pter plugs ha vebeen
re mo ved. 238
238
Driving and parking

F
F
olding t
olding t he ball nec
he ball nec k out
k out #
Pull switch 2until the ball neck unloc ks.
The ball neck will fold out from under there ar
bumper.
Indicator lamp 1will 0ash. #
Pull the ball neck in the direction of the ar row
until it engages audibly in a vertical position.
Indicator lamp 1onthe ball neck release
switch will go out.
If th e ball neck is not securely loc ked in place,
th eTrailer coupling Check lockmessage will
appear on the inst rument displa y. #
Remo vethe co ver cap from the ball head and
store it in a safe place. Make sure
that the ball on the ball neck is clean.
Check that it is either greased or dry (g rease-
free), depending on the inst ructions forth e trailer.
F
F olding t olding t he ball nec
he ball nec k in
k in #
Pull switch 2until the ball neck unloc ks.
The ball neck will fold up under there ar
bumper.
Indicator lamp 1will 0ash. #
Push the ball neck in the direction of the
ar ro w until it engages audibly behind the
bumper.
Indicator lamp 1will go out and the message
on the inst rument display will disappear.
Obser vethe information about the displa yson the
inst rument cluster:
R Indicator and warning lamps (/ page 408)
R Display message s (/page 358) Coupling up/uncoupling a tr Coupling up/uncoupling a tr
ailer
ailer R
R
eq
eq uir
uir ements:
ements:
R The ball neck is extended and engaged in a
securely loc ked position. Driving and parking
239
239

Tr
ailers with a 7-pin plug can be connected tothe
ve hicle with thefo llowing adap ters:
R Adapter plug
R Adapter cable
The trailer will be cor rectly de tected bytheve hi-
cle only if thefo llowing conditions are met:
R The trailer is connected cor rectl y.
R The trailer lighting system is in working order.
The functions of thefo llowing systems will be
a.ec tedbya cor rectly connected trailer:
R ESP ®
trailer stabilisation
R Active Lane Keeping Assist
R Parking Assist PARKTRONIC
R Active Parking Assist
R Blind Spot Assist or Active Blind Spot Assist
R Drive Away Assist
R Cross Tra1c Ale rt
R Reversing camera
R 360° camera Coupling up a tr
Coupling up a tr ailer
ailer
* NO
NOTE
TEDamage tothe star ter battery due
to full dis charge Charging
the trailer battery using the po wer
supply of the trailer can damage the star ter
batter y. #
Do not use theve hicle's po wer supply to
ch arge the trailer batter y. #
Remo vethe co ver cap from the ball head and
store it in a safe place. #
Position the trailer on a le vel sur face behind
th eve hicle and couple it up totheve hicle. #
Open the soc ket cap. #
Inse rtthe plug with lug 1ingroo ve 3 on
th e soc ket. #
Turn bayonet coupling 2totheright as far as
it will go. #
Let the cap engage. #
Secure the cable tothe trailer with cable ties
(only if you are using an adap ter cable). #
Make sure that the cable is alw ays slack for
ease of mo vement during cornering.
Under thefo llowing conditions, a message may
appear on the inst rument display even if the
trailer has been connec ted cor rectl y:
R LEDs ha vebeen ins talled in the trailer lighting
system.
R The cur rent has fallen below the trailer lighting
system's minimum cur rent (50 mA).
% Accessories can be connected tothe perma-
nent po wer supply up to180 W and tothe
po we r supply that is switched on via the igni-
tion loc k. 240
240
Driving and parking

U
U
ncoupling a tr
ncoupling a tr ailer
ailer &
W
W ARNI NG
ARNI NGRisk of being crushed and
becoming trapped when uncoupling a
trailer
When uncoupling a trailer with an engaged
inertia-activated brake, your hand may
become trapped between theve hicle and the
trailer dr awbar. #
Do not uncouple trailers with an engaged
ove rrun brake. *
N
NO OTE TE Damage when uncoupling in a state
of ove rrun Uncoupling in a state of
overrun can damage
th eve hicle. #
Do not uncouple trailers with an engaged
ove rrun brake. #
Secure the trailer against rolling away. #
Disconnect the electrical connection between
th eve hicle and the trailer. #
Uncouple the trailer. #
Place the co ver cap on the ball head.
% T
Tr
railer
ailer s wit
s wit h LED lighting:
h LED lighting: aTer uncoupling the
traile r,switch theve hicle on and then o.
again. Bicy
Bicy
cle r
cle r ac
ack function
k function &
W
WARNING
ARNING Risk of an accident if the bicy-
cle rack is used incor rectly
The bicycle rack may become de tach ed from
th eve hicle in thefo llowing cases:
R the permissible load capacity of the trailer
hitch is exceeded.
R the bicycle rack is used incor rectl y.
R the bicycle rack is secured tothe ball neck
beneath the ball head.
Obser vethefo llowing foryo ur ow n sa fety and
th at of other road users:
R always adhere tothe permissible load
capacity of the trailer hitch. R
always obser vethe permissible rear axle
load of theto wing vehicle.
R use the bicycle rack only totransport bicy-
cles.
R always proper lysecure the bicycle rack by
attaching it tothe ball head.
R use only bicycle rack s appr ovedby
Mercedes-Benz.
R always obser vethe bicycle rack operating
instructions. *
N NOOTE TE Damage to, or crac kson, the trailer
hitch due tounsuitable bicycle rack s or
bicycle rack s being used inco rrectly #
use only bicycle rack s appr ovedby
Mercedes-Benz. *
N
NOOTE
TE Increased risk of damage toprop-
erty due tofolded-out ball neck #
When the trailer is not coupled or the
bicycle rack is attached, fold in the ball Driving and parking
241
241

neck or, in
the case of a fully electric
trailer hitch, retract the ball nec k. Depending on
the bicycle rack 's design, up to
th re e bicycles can be transpor ted on the bicycle
ra ck.
When mounted byattaching toball head 1,the
maximum load capacity is 75 kg. The maximum load capacity is calculated from
the
we ight of the bicycle rack and the bicycle rack
load.
Obser vethe no tes on driving with a roof load,
trailer or fully laden vehicle (/ page 152).
When using a bicycle rack , set the tyre pressure
fo r increased load on there ar axle of theve hicle.
Fu rther information on the tyre pressure can be
fo und in the tyre pressure table (/ page 334).
N
No ot tes on loading
es on loading
The lar gerth e distance between the load's centre
of grav ity and the ball head, thegr eater the load
on the trailer hitch.
Therefore, obser vethefo llowing no tes:
R mount heavy bicycles as close totheve hicle
as possible
R always distribute the load on the bicycle rack
as evenly as possible across theve hicle's lon-
gitudinal axis
Mercedes-Benz recommends removing all de tach-
able parts from bicycles (e.g. bask ets, ch ild seats,
re ch arge able batteries) before loading them onto
th e bicycle rack . This will impr ovethe aerody- namic
resis tance and centre of grav ity of the bicy-
cle rack.
Alw ays secure the bicycles toprev ent them from
moving around and check them at regular inter-
va ls to ensure that they are secure.
Do not use tarp aulins or other co vers. The driving
ch aracteristics and rear view may be impaired. In
addition, aerodynamic resis tance and the load on
th e trailer hitch will increase. Load distribution on
the bicycle rack
1 Vertical distance between centre of grav ity
and ball head 242
242
Driving and parking

2
Horizontal distance between centre of grav ity
and ball head
3 The centre of grav ity is on theve hicle's cent re
axis
Obser vethefo llowing information when you are
loading the bicycle rack with up tothre e bicycles:
Loading t
Loading t he bicy
he bicycle r
cle rack
ack T
T
o
o t
tal w
al w eight
eight
of bicy
of bicy cle
cle
r
r ac
ac k and load
k and load Max. dist
Max. dist
ance
ance
1
1 Max. dist
Max. dist
ance
ance
2
2
Up to75 kg 420 mm 300 mm V
V
ehicle to
ehicle towing ins
wing ins tr
tructions
uctions
The vehicle is not suitable forth e use of tow bar
systems that are used for 0at towing or dinghy
to wing, forex ample. Attach ing and using tow bar
systems can result in damage totheve hicle.
When you are towing a vehicle with tow bar sys-
te ms, safe driving characteristics cann otbe guar-
anteed forth eto wing vehicle or theto we dve hicle.
The vehicle-trailer combination may swer vefrom
side toside. Obser
vethefo llowing information:
R Perm itted towing me thods (/ page 323)
R The no tes on towing theve hicle with bo th
axles on thegr ound (/ page 324) Driving and parking
243
243

R
With th e wiper arms folded out, clean the
wiper blades with a damp clo th.
% Make sure that the wiper blades are coated.
The coating can lea veresidues on a clo th. Do
not rubth e wiper blades excessively or clean
th em too oTen.
Ext
Ext er
erior lighting
ior lighting
R Clean the lenses with a wet sponge and mild
cleaning agent, e.g. car sha mpoo.
R Only use cleaning agents or cleaning clo ths
th at are suitable for plastic lenses.
V
V ehicle soc ke
ehicle soc ket (high-v
t (high-v olt
oltag
age batt
e batt er
ery)
y)
R Use clean water and a soT clo thtoclean the
ve hicle soc ket.
R Do not use high-pressure cleaners or cleaning
agents, such as soap.
Sensors
Sensors
R Clean the sensors in the front and rear bump-
ers with a soT clo thand car shampoo
(/ page 188).
R When using a high-pressure cleaner, main tain
a minimum distance of 30 cm. R R
e
ev
ver
er sing camer
sing camer a and 360° Camera
a and 360° Camera
R Open the camera co ver with the multimedia
system (/ page 228).
R Use clean water and a soT clo thtoclean the
camera lens.
R Do not use a high-pressure cleane r.
Tr
Tr ailer hitch
ailer hitch
R Obser vethe no tes on care in the trailer hitch
manufacturer's operator manual.
R Do not clean the ball neck with a high-pres-
sure cleaner or sol vent.
R Remo vetraces of rust on the ball, forex ample,
with a wire brush.
R Remo vedirt with a lint-free clo th.
R ATer cleaning, lightly oil or grease the ball
head.
% Before using trailers with anti-torsional cou-
pling, obser vethe manufacturer's operator
manual. N No
ot
tes on car
es on car e of t
e of the int
he int er
erior
ior &
W
WARNING
ARNING Risk of injury from plastic parts
breaking o. aTer the use of sol vent-based
ca re products
Care and cleaning products containing sol-
ve nts can cause sur faces in the cockpit to
become porous. When the airbags are
deplo yed, plastic parts may break away. #
Do not use any care or cleaning products
containing sol vents toclean the cockpit. &
W WARNING
ARNING Risk of injury or fatal injuries
from bleached seat belts
Bleaching or dyeing seat belts can se verely
we aken them.
This can, forex ample, cause seat belts to tear
or fail in an accident. #
Never bleach or dye seat belts. To
avo id damage totheve hicle, obser vethefo l-
lowing no tes on cleaning and care: 308
308
Main
tenance and ca re

#
In such cases, transpo rttheve hicle
(/ page 326).
* N
NO OTE
TE Damage due to towing away at
ex cessively high speeds or over long dis-
ta nces The driv
etra in could be damaged when towing
at excessively high speeds or over long distan-
ces. #
Atowing speed of 50 km/h must not be
ex ceeded. #
Atowing dis tance of 50 km must not be
ex ceeded. &
W
W ARNING
ARNING Risk of accident when towing a
ve hicle which is too heavy
If th eve hicle tobe tow- star ted or towe daway
is heavier than the permissible gross mass of
yo ur vehicle, thefo llowing situations can
occur:
R theto wing eye may become de tach ed. R
theve hicle/trailer combination may
swer veorove rturn. #
Before tow- starting or towing away,
ch eck if theve hicle tobe tow- star ted or
to we dawa yex ceeds the permissible
gr oss mass. If a
vehicle must be tow- star ted or towe dawa y,its
permissible gross mass must not exceed the per-
missible gross mass of theto wing vehicle. #
Information on the permissible gross mass of
th eve hicle can be found on theve hicle identi-
/cation plate (/ page 349).
T
T o
o wing awa
wing away t
y the v
he v ehicle
ehicle #
Fitth eto wing eye (/ page 327). #
Fasten theto wing device.
* N
NOOTE
TE Damage due toincor rect connec-
tion of theto w bar #
Only connect theto w rope or tow bar to
th eto wing eyes. #
Deactivate the automatic locking mechanism
(/ page 85). #
Do not activate the HOLD function. #
Deactivate tow- awa y protection
(/ page 101). #
Deactivate Active Brake Assist (/ page 212). #
ShiT the transmission toposition i. #
Release the electric parking brake. #
Remain in the cockpit during towing and
obser vethe display messages. #
Do not switch o. theve hicle while it is being
to we d. #
Do not open the driver's door or front
passenger door; the transmission will other-
wise automatically shiT toj . Breakd
own assistance
325
325