2022 MERCEDES-BENZ CLS COUPE Owners Manual

Trailer Manoeuvring Assist assists you when
r
eversing with a trailer. Using the reversing cam-
era, it monitors the articulation angle between the
vehicle and trailer and adjusts it to a speciNed
value. Trailer Manoeuvring Assist also limits your
speed.
Trailer Manoeuvring Assist is only an aid. It is not
a substitute for your attention to the surround-
ings. The responsibility for safe manoeuvring and
parking remains with you. Make sure that there
are no persons, animals or objects in the manoeu-
vring area while manoeuvring and parking in/exit-
ing parking spaces.
You can either enter the articulation angle value
directly via the multimedia system or use a
straightening manoeuvre. When carrying out a
straightening manoeuvre, the system calculates
the articulation angle automatically and straight-
ens the vehicle/trailer combination to the trailer's
current direction.
Observe the notes on towing a trailer
(  page 239). System limits
Obser
ve the system limits of the following func-
tions:
= Active Parking Assist ( page 231)
= 360° Camera ( page 223)
= Reversing camera ( page 221)
The system may be impaired or may not function
in the following situations: = The gradient is greater than approximately
15 %.

qUsing Trailer Manoeuvring Assist
Requirements
= The vehicle has been started and is stationary.
= A trailer has been detected.
= The gradient is less than approximately 15 %.
= The boot lid is closed.
= The electric parking brake is not applied. Using Trailer Manoeuvring Assist

Engage reverse k g
ear. 
Press the 1 butt
on.
The camera image is shown in the media dis-
play. 
To adjust the articulation angle: select

or

To activate the straightening manoeuvre:
select

Further information can be obtained at a
q ualiNed
specialist workshop.
Observe the following notes on the tongue weight:
= Do not use a tongue weight that exceeds or
falls below the permissible tongue weight
= Use a tongue weight as close as possible to
the maximum tongue weight
Do not exceed the following values:
= Permissible towing capacity
= Permissible rear axle load of the towing vehi-
cle
= Permissible gross weight of the towing vehicle
= Permissible gross weight of the trailer
= Maximum permissible speed of the trailer
Ensure the following before starting a journey: = The tyre pressure on the rear axle of the tow-
ing vehicle is set for a maximum load
= The lighting of the connected trailer is opera-
tional =
V ehicles without LED headlamps or MULTI-
BEAM LED headlamps: the headlamps have
been set correctly
In the event of increased rear axle load, the car/
trailer combination must not exceed a maximum
speed of 100 km/h for reasons concerning the
operating permit. This also applies in countries in
which the permissible maximum speed for car/
trailer combinations is above 100 km/h.
% When you are reversing with a trailer, remem-
ber t

o use the Trailer Manoeuvring Assist
function (  page 237). Extending and retracting the ball neck fully electri-
call
y &
WARNING Risk of accident due t
o the ball
neck not being engaged
If the ball neck is not engaged, the trailer may
come loose. 
Make sure that the ball neck securely
eng

ages and locks into place. *
NOTE Damag
e to the all-electric trailer
hitch due to additional pressure The all-electric trailer hitch could be mechani-
call
y damaged by applying additional pressure
when the ball neck is being extended or
retracted. 
Do not make the ball neck extend/
r

etract faster by applying additional pres-
sure. *
NOTE Incr
eased risk of damage to prop-
erty due to folded-out ball neck 
When the trailer is not coupled or the
bicy
cle rack is attached, fold in the ball
neck or, in the case of a fully electric
trailer hitch, retract the ball neck. *
NOTE Damag
e to the vehicle due to incor-
rect use of the trailer hitch If a trailer hitch is used to recover the vehicle,
t
he vehicle or the trailer hitch itself may be
damaged in the process. 240
Driving and parking


Use the trailer hitch only for pulling a
tr
ailer or attaching approved carrier sys-
tems (e.g. a bicycle rack).
Exception: Since vehicles with a trailer
hitch do not have a Nxture for a towing
eye at the rear, towing or tow-starting is
permitted. 
When towing or tow-starting with the
tr

ailer hitch, observe the information in
the section "Fitting and removing the
towing eye." Extending the ball neck fully electrically

Secure the vehicle against rolling away. 
Keep the swivel range free of objects. 
Remove the trailer cable or adapter plug. 
Pull button 2.
Indicat
or lamp 1 will Oash and the message
Trailer coupling extending

Retracting the ball neck fully electrically

Pull button 2.
Indicat or lamp 1 will Oash and the message
Trailer coupling extending

If the ball neck is not securely locked in place, the
Check trailer hitch lock messag
e will appear on
the multifunction display. Coupling up/uncoupling a trailer
&
WARNING Risk of injur
y due to a change
in vehicle level
Vehicles with level control system: t
he vehicle
level may be changed unintentionally, e.g. by
other persons. If you couple or uncouple the
trailer during this time, you may become trap-
ped. In addition, other people could become
trapped if their limbs are between the vehicle
body and the tyres or underneath the vehicle.
Observe the following when coupling or
uncoupling: 
Do not open or close any doors or the
boo
t lid. 
Do not initiate the level control system
and do no
t operate the DYNAMIC
SELECT switch. 
Do not lock or unlock the vehicle. The trailer will be correctly detected by the vehi-
cle onl

y if the following conditions are met:
= The ball neck is extended and engaged in a
securely locked position.
= Vehicles with level control system: ensure the
vehicle is at the normal level (  page 219).
Use the normal level in trailer operation. High-
level driving is not permitted in trailer opera-
tion on public roads.
Trailers with a 7-pin plug can be connected to the
vehicle with the following adapters:
= Adapter plug
= Adapter cable
The trailer will be correctly detected by the vehi-
cle only if the following conditions are met:
= The trailer is connected correctly.
= The trailer lighting system is in working order.
A correctly connected trailer inOuences, among
other things, the functions of the following sys-
tems:
= ESP n
trailer stabilisation =
T railer Manoeuvring Assist
= Active Lane Keeping Assist
= Parking Assist PARKTRONIC
= Active Parking Assist
= Blind Spot Assist or Active Blind Spot Assist
= Drive Away Assist
= Cross TraPc Alert
= Reversing camera
= 360° camera
= AIR BODY CONTROL
Coupling up a trailer
* NOTE Damag
e to the starter battery due
to full discharge Charging the trailer battery using the power
suppl

y of the trailer can damage the starter
battery. 
Do not use the vehicle's power supply to
c

harge the trailer battery. 
Secure the vehicle against rolling away. Driving and parking
243


Remove the cover cap from the ball head and
s
tore it in a safe place. 
Position the trailer on a level surface behind
t

he vehicle and couple it up to the vehicle. 
Open the socket cap. 
Insert the plug with lug 1 int
o groove 3 on
the socket. 
Turn bayonet coupling 2 t
o the right as far as
it will go. 
Let the cap engage. 
Secure the cable to the trailer with cable ties
(onl
y if you are using an adapter cable). 
Make sure that the cable is always slack for
ease of mo
vement during cornering.
In the following circumstances, a message may
appear on t
he instrument display even if the
trailer has been connected correctly:
= LEDs have been installed in the trailer lighting
system.
= The current has fallen below the trailer lighting
system's minimum current (50 mA).
% Accessories can be connected to the perma-
nent po

wer supply up to 180 W and to the
power supply that is switched on via the igni-
tion lock.
Uncoupling a trailer &
WARNING Risk of being cr
ushed and
becoming trapped when uncoupling a
trailer
When uncoupling a trailer with an engaged
iner
tia-activated brake, your hand may
become trapped between the vehicle and the
trailer drawbar. 
Do not uncouple trailers with an engaged
o
verrun brake. *
NOTE Damag
e during uncoupling with an
engaged overrun brake The vehicle may be damaged if you uncouple
wit
h an engaged overrun brake. 
Do not uncouple trailers with an engaged
o
verrun brake. &
WARNING Risk of becoming tr
apped when
disconnecting the trailer cable
Vehicles with level control system: t
he vehicle
may lower when you disconnect the trailer
cable.
This could result in other people becoming
trapped if their limbs are between the vehicle
body and the tyres or underneath the vehicle. 
Make sure nobody is underneath the
v

ehicle or in the immediate vicinity of the
wheel arches when you disconnect the
trailer cable. 244
Driving and parking

*
NOTE Damag e to the rear bumper from
installing adapter cables or adapter plugs The following parts could be damaged when
swiv
eling the ball neck fully electrically:
= Bumper
= Adapter cable
= Adapter plug 
Always remove the adapter cable or
adap

ter plug before swiveling the ball
neck fully electrically. 
Secure the trailer against rolling away. 
Disconnect the electrical connection between
t

he vehicle and the trailer. 
Uncouple the trailer. 
Place the cover cap on the ball head.
% Trailers with LED lighting: aser uncoupling t
he
trailer, switch the vehicle on and then oM
again. Bicycle rack function
&
WARNING Risk of an accident if t
he bicy-
cle rack is used incorrectly
The bicycle rack may become detached from
t
he vehicle in the following cases:
= the permissible load capacity of the trailer
hitch is exceeded.
= the bicycle rack is used incorrectly.
= the bicycle rack is secured to the ball neck
beneath the ball head.
Observe the following for your own safety and
that of other road users:
= always adhere to the permissible load
capacity of the trailer hitch.
= always observe the permissible rear axle
load of the towing vehicle.
= use the bicycle rack only to transport bicy-
cles. =
alw
ays mount the bicycle rack properly by
attaching to the ball head and the ball
neck guide pin, if possible.
= when transporting four bicycles, always
use bicycle racks that have additional sup-
port on the ball neck guide pin.
= use only bicycle racks approved by
Mercedes-Benz.
= always observe the bicycle rack operating
instructions. *
NOTE Damag
e to or breakage of the trailer
hitch due to unsuitable or improperly used
bicycle rack. 
Only use bicycle racks approved by
Mer
cedes-Benz properly as described
below. *
NOTE Incr
eased risk of damage to prop-
erty due to folded-out ball neck 
When the trailer is not coupled or the
bicy
cle rack is attached, fold in the ball Driving and parking
245