trailer MERCEDES-BENZ C-CLASS COUPE 2021 Owner's Manual

R
Red segments: obstacles at a very short
dis tance of appr ox. 0.3 m or less
Sy stem limits
Pa rking Assist PARKTRONIC does not necessa‐
ri ly take into account thefo llowing obs tacles:
R Obs tacles bel owthe de tection range, e.g.
pe rsons, animals or objects.
R Obs tacles ab oveth e de tection range, e.g.
ov erhanging loads, overhangs or loading
ra mp s of lor ries.
The sensors must be free of dirt, ice and slush.
Otherwise, they may not function cor rectly.
Clean the sensors regularly, taking care not to
scratch or damage them (/ page175).
Ve hicles with trailer hitch: Parking Assist
PA RKTRONIC is deacti vatedfo rth ere ar zone
when you es tablish an elect rical connection
between your vehicle and a trailer. Problems with
Parking Assist PARKTRONIC Example:
vehicles with 360° Camera
When rear segments 1or all-round segments
2 light up red and theé symbol appears in
th e multifunction displa y,Pa rking Assist
PA RKTRONIC may ha vebeen deactivated due to
signal inter fere nce. Start theve hicle again and
ch eck if Parking Assist PARKTRONIC is working
at a dif fere nt location. If a
warning tone also sounds for appro ximately
two seconds everytime theve hicle is star ted, it
may be due toone of thefo llowing causes:
R The sensors are dirty: cleanthe sensors
and obser vethe no tes on care of vehicle
parts (/ page373).
R Parking Assist PARKTRONIC has been
deactivated due toa malfunction: restart
th eve hicle. If the problem persists, consult a
qu alified specialist workshop.
Fu nction of the passive side impact pr otec‐
tion
Pa ssive side impact pr otection is an additional
Pa rking Assist PARKTRONIC function which
wa rnsth e driver about obs tacles at the side of
th eve hicle. A warning is issued when obs tacles
are de tected between the front and rear de tec‐
tion range. In order for an object on the side to
be de tected, the sensors in the front and rear
bumper must firs t de tect the object while you
are driving past it.
During the parking procedure or manoeuvring,
objects are de tected as theve hicle drives past.
If yo usteer in the direction of a de tected obs ta‐ 218
Driving and pa rking

th
e assis tance of there ve rsing camera and 360°
Camera. When you are driving forw ards up to
appr oximately 35 km/h, the sy stem automati‐
cally measures parking spaces on bo thsides of
th eve hicle.
As soon as all requ irements are met for sear ch‐
ing for parking spaces, theÇ display appears
in the multifunction displa y.
When Active Parking Assist has de tected pa rking
spaces, theÈ display appears in the multi‐
function displa y.The ar rowsshow on which side
of thero ad de tected pa rking spaces are located.
They are then shown in the media displa y.
The parking space can be selected as desired.
Depending on the location of the parking space,
th e parking direction (rear wards or forw ards)
can also be selec ted as desired.
When Active Parking Assist is activated, the turn
signal indicators are activated based on the cal‐
culated path of your vehicle.
When you are en tering or exiting a parking
space, the procedure is assis tedby acceleration,
braking, steering and gear changes. Ac
tive Parking Assist is only an aid. It is not a
substitute foryo ur attention tothe sur roundings.
The responsibility for safe manoeuvring and
parking remains with you. Make sure that no
persons, animals or objects etc. are in the
manoeuvring range.
Ac tive Parking Assist will be cancelled in thefo l‐
lowing situations:
R Parking Assist PARKTRONIC is deacti vated.
R You begin steering.
R You apply the parking brake.
R You en gage transmission position j.
R ESP ®
inter venes.
R You open the doors or the boot lid while driv‐
ing.
Sy stem 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,
ov erhangs or loading ramp s of goods vehicles, or
th e borders of parking spaces, are not de tected
du ring measu rement of the parking space. These are also
then not take n into account when calcu‐
lating the parking procedure. In some circum‐
st ances, Active Parking Assist may therefore
guide you into the parking space incor rectl y. &
WARNING Risk of accident due to
objects located abo veor below the
de tection range of Active Parking Assist
If th ere are objects abo veor below the
de tection range, thefo llowing situations may
arise:
R Active Parking Assist may steer too early.
R The vehicle may not stop in front of these
objects.
This could cause a collision. #
Inthese situations, do not use Active
Pa rking Assist. Extreme
weather conditions, such as sn owor
heavy rain, may lead toa parking space being
measured inaccuratel y.Pa rking spaces that are
partial ly occupied bytrailer dr awbars might not
be identified as such or be measured inco rrectly. Driving and parking
221

Only use
Active Parking Assist on le vel, high- grip
ground.
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 Onsteep uphill or downhill gradients of more
th an appr oximately 15%.
R When snow chains are fitted.
R When a trailer or bicycle rack is attached.
R Direct lyafte r a tyre change or when spare
tyres are fitted.
R Ifth e tyre pressure is too low or too high.
R Ifth e suspension is out of alignment, e.g.
af te r 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. Park
ing with Active Parking Assist #
Press button 1. The media display sho
ws the view of Active Park‐
ing Assist. Area 2displa ysdetected pa rking
spaces 4and vehicle path 3.
% Vehicle path 3shown on the media display
may dif fer from the actual vehicle path. #
If a parking space is displa yed: stop theve hi‐
cle. #
Select desired parking space 4and con‐
fi rm. #
If necessar y,select the parking direction (for‐
wa rds or reve rse), and confi rm.
Ve hicle path 3is shown, depending on
selected parking space 4and the parking
direction. 222
Driving and parking

ished, take control of the vehicle.
message
prom ptyouto tak e control of theve hicle.
The vehicle is not automatically braked and can
ro llaw ay.Yo u ha vetoaccelerate, brake, steer
and change gear yourself again. Manoeuv
ring assistant Fu
nction of Drive Away Assist
Drive AwayAssi stcan reduce the se verity of an
impact when pulling away. If an obs tacle is
de tected in the direction of tr avel, theve hicle's
speed is brief lyreduced toappr ox. 2 km/h. If a
critical situation is de tected, theÈ symbol
appears in the media displa y.
% You can cancel an inter vention byDrive
Aw ayAssi stat any time bydeactivating
Pa rking Assist PARKTRONIC (/ page 220). &
WARNING Risk of accident caused by
limited de tection per form ance of Drive
Aw ayAssi st
Drive AwayAssi stcannot al ways clearly iden‐
tify objects and traf fic situations. #
Alw ays pay careful attention tothe traf‐
fi c situation; do not rely on Drive Away
Assi stalone. #
Be prepared tobrake or swer veas nec‐
essar y,prov ided the tra ffic situation
permits and that it is safe totake eva‐
sive action. Drive
AwayAssi stis only an aid. It is not a sub‐
st itute foryo ur attention tothe sur roundings.
The responsibility for safe manoeuvring and
parking remains with you. Make sure that no
persons, animals or objects etc. are in the
manoeuvring range.
A risk of a collision may arise in thefo llowing sit‐
uations, forex ample:
R Ifth e accelera tor and brake pedals are inter‐
ch anged.
R If an incor rect transmission position is
engaged.
Drive AwayAssi stis active under thefo llowing
conditions:
R IfPa rking Assist PARKTRONIC is activated. R
Ifyo u shift 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 assis tance function is
acti vated in the multimedia sy stem.
Sy stem limits
The per form ance of Drive AwayAssi stis limited
on inclines.
When driving with a trailer, Drive AwayAssi stis
not available.
% Also obse rveth e sy stem limits of Parking
Assist PARKTRONIC (/ page217).
Fu nction of Cross Traf fic Alert
% Cross Traf fic Alert is only available forve hi‐
cles with Blind Spot Assist or Active Blind
Spot Assi st.
Cross Traf fic Alert can warndrivers of any cross‐
ing tra ffic when reve rsing and manoeuvring out
of a parking space. The radar sensors in the
bumper also monitor the area adjacent tothe
ve hicle. If a critical situation is de tected, the Driving and pa
rking 225

L
symbol appears inthe media display and
th eve hicle can be braked automatically.
If th era dar sensors are obstructed byvehicles
or other objects, de tection is not possible.
Cross Traf fic Alert is acti veunder thefo llowing
conditions:
R ifth eve hicle is reve rsing at a walking pace.
R manoeuvring assis tance is acti vated
( / page 226).
% Also obser vethe instructions on Blind Spot
Assist and Active Blind Spot Assi st
( / page 202).
Sy stem limits
Cross Traf fic Alert is not available on inclines.
Cross Traf fic Alert is not available when driving
with a trailer. Ac
tivating or deactivating manoeuv ring
assistant
Multimedia sy stem:
4 Vehicle 5
k Assistance
5 Camera & Park. Assist
5 Manoeuvring assist. #
Activate Oor deacti vate ª the function.
% Manoeuvring assis tance mu stbe active for
th e function of Drive AwayAssi st
( / page 225) and Cross Traf fic Alert
(/ page 225). Tr
ailer hitch Note
s on trailer operation *
NO
TEMercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. Obser
vethefo llowing no tes on theto ngue
we ight:
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
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 vehi‐
cle
R Perm issible grossweight of the trailer
R Maximum permissible speed of the trailer
Ensure thefo llowing before starting a journey:
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 226
Driving and parking

R
Vehicles without LED headlamps or MUL‐
TIBEAM LED headlamps: the headlamps
ha ve been set cor rectly
In theeve nt of increased rear axle load, the car/
trailer combination must not exceed a maximum
speed of 100 km/h forre asons concerning the
operating permit. This also applies in countri es
in which the permissible maximum speed for
car/trailer combinations is ab ove100 km/h. Fo
lding the ball neck out and in &
WARNING Risk of accident due tothe
ball neck not being engaged
If th e ball neck is not engaged, the trailer
may come loose. #
Alw ays engage the ball neck as descri‐
bed. &
WARNING Risk of inju ryfrom ball neck
swinging outwards
The ball neck may swing outwards when
unlo cking or when it has not been properly
engaged.
There is a risk of injury within the ball neck's
ra nge of mo vement! #
Unlock the ball neck only when its
ra nge of mo vement is unobstructed. #
Alw ays be sure the ball neck is engaged
when folding in wards. *
NO
TEIncreased 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. *
NO
TEDama getotheve hicle due to
incor rect 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 appro ved car rier
sy stems (e.g. a bicycle rack ). Re
quirements:
R The vehicle is secured against rolling away.
R The swivel range is clear.
R The trailer cables or adap ter plugs ha vebeen
re mo ved. Driving and parking
227

Fo
lding the ball neck out #
Pull swit ch2 until the ball neck unloc ks.
The ball neck will fold out from under the
re ar bumper.
Indicator lamp 1will flash. #
Pull the ball neck in the direction of the
ar row until it en gage s 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, theCheck trailer hitch lock message
will appear on the multifunction displa y. #
Remo vethe co ver cap from the ball head and
st ore it in a safe place.
Make sure that the ball on the ball neck is clean.
Check that it is either greased or dr y (grease-
free), depending on the instructions forthe
traile r.
Fo lding the ball neck in #
Pull swit ch2 until the ball neck unloc ks.
The ball neck will fold up under there ar
bumper.
Indicator lamp 1will flash. #
Push the ball neck in the direction of the
ar row until it en gage s audibly behind the
bumper.
Indicator lamp 1will go out and the mes‐
sage on the multifunction display will disap‐
pear.
Obser vethe information about the displa yson
th e instrument clus ter:
R Indicator and warning lamps (/ page 487)
R Display messages (/ page 433)228
Driving and parking

Coupling up/uncoupling a trailer
&
WARNING Risk of inju ryfrom theve hicle
le ve l being changed
Ve hicles with le vel control sy stem: the
ve hicle le vel may be changed unin tentional ly,
e.g. by ot her persons. You may become trap‐
ped if you couple up or uncouple a trailer
while theve hicle le vel is changing. In addi‐
tion, other people could become trapped if
th eir limbs are between theve hicle body and
th e tyres or underneath theve hicle.
When coupling up or uncoupling a trailer,
make sure that: #
The doors or tailgate are not opened or
closed. #
You do not initiate the le vel control sys‐
te m and do not operate theDY NA MIC
SELECT switch. #
Do not lock or unlock theve hicle. Re
quirements:
R The ball neck is extended and engaged in a
secu rely loc ked position. Tr
ailers with a 7-pin plug can be connec tedto
th eve 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 me t:
R The trailer is connected cor rectl y.
R The trailer lighting sy stem is in working
order.
The functions of thefo llowing sy stems will be
af fected bya cor rectly connected traile r:
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 Assi st
R Drive AwayAssi st
R Cross Traf fic Alert
R Reversing camera
R 360° camera R
AIRMATIC
Coupling up a trailer
* NO
TEDama getothest ar ter battery due
to full discharge Charging
the trailer battery using the po wer
supply of the trailer can damage thest ar ter
batter y. #
Do not use theve hicle's po wer supply
to charge the trailer batter y. #
Remo vethe co ver cap from the ball head and
st ore it in a safe place. #
Position the trailer on a le vel sur face behind
th eve hicle and couple it up totheve hicle. Driving and parking
229

#
Open the soc ket cap. #
Inse rtthe plug with lug 1in groo ve3 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 multifunction display even if the
trailer has been connected cor rectly:
R LEDs ha vebeen ins talled in the trailer light‐
ing sy stem.
R The cur rent has fallen below the trailer light‐
ing sy stem's minimum cur rent (50 mA).
% Accessories can be connected tothe perma‐
nent po wer supp lyup to180 W and tothe
po we r supp lythat is swit ched on via the igni‐
tion loc k.
Un coupling a trailer &
WARNING Risk of being crushed and
becoming trapped when uncoupling a
trailer
When uncoupling a trailer wi than engaged
ine rtia-activated brake, your hand may
become trapped between theve hicle and the
trailer dr awbar. #
Do not uncouple trailers with an
engaged overrun brake. *
NO
TEDama gewhen uncoupling in a
st ate of overrun Uncou
pling in a state of overru n can dama ge
th eve hicle. #
Do not uncouple trailers with an
engaged overrun brake. &
WARNING Risk of becoming trapped
when disconnecting the trailer cable
Ve hicles with le vel control sy stem: The
ve hicle may lo wer when the trailer cable is
disconnected.
This could result in you or other people
becoming trapped if your or their limbs are
between theve hicle body and the tyres or
underneath theve hicle. #
Make sure that nobody is unde rneath
th eve hicle or in the immediate vicinity
of the wheel ar ches when you discon‐
nect the trailer cable. #
Secure the trailer against rolling away. 230
Driving and parking

#
Disconnect the electrical connection
between theve hicle and the trailer. #
Uncouple the trailer. #
Place the co ver cap on the ball head. Bicycle
rackfunction &
WARNING Risk of an accident when
using the bicycle rack 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 that of other road users: #
always adhere tothe permissible load
capacity of the trailer hitch. #
only use the bicycle rack totranspo rt
bicycles. #
always proper lysecure the bicycle rack
by attaching it tothe ball head. #
only use bicycle rack s appr ovedby
Mercedes-Benz. #
always obser vethe bicycle rack operat‐
ing instructions. *
NO
TEDama geto, or cra cks on, the
trailer hitch due tounsuitable bic ycle
ra ck s or bicycle rack s being used incor‐
re ctly #
use only bicycle rack s appr ovedby
Mercedes-Benz. *
NO
TEIncreased 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. 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 75kg.
The load capacity is calculated from thewe 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 (/ page149). Driving and parking
231