2022 MERCEDES-BENZ CLS COUPE Owners Manual

Depending on the country, data volume may
need t o be purchased.
= A fast Internet connection for data transmis-
sion free of interference.
% Data volume can be purchased dir
ectly from
a mobile phone network provider via the
Mercedes me Portal.
% The functions and services are country-
dependent. F

or more information, consult a
Mercedes-Benz service centre.
Multimedia system: 4 © 5
Radio 
Select TuneIn Radio .
The T
uneIn menu appears. The last station set
starts playing.
% The connection quality depends on the local
mobile phone r
eception.Sound settings
Overview of functions in the sound menu
The setting options and functions available
depend on t

he sound system Ntted. You can Nndout which sound system is
Ntt
ed in your vehicle in
the Digital Owner's Manual.
Standard sound system and Advanced sound sys-
tem
The following functions are available:
= Equaliser
- Treble, mid-range and bass
= Balance and fader
= Volume
- Automatic adjustment
Burmester n
surround sound system and
Burmester n
high-end 3D surround sound system
The following functions are available:
= Equaliser
- Treble, mid-range and bass
= Balance and fader
= Sound focus
= VIP seat (Burmester n
high-end 3D surround
sound system only)
= Sound proNles =
V olume
- Automatic adjustment 302
MBUX multimedia system

ASSYST PLUS service interval display
Function of the ASSYST PLUS service interval dis-
pla
y The ASSYST PLUS service interval display on the
ins
trument display informs you of the time or dis-
tance remaining before the next service due date.
You can hide this service display using the back
button ( on the steering wheel.
Depending on how the vehicle is used, the
ASSYST PLUS service interval display may shorten
the service interval, e.g. in the following cases:
= Mainly short-distance driving
= When the engine is osen les idling for long
periods
= In the event of frequent cold start phases
= Vehicles with a diesel particulate Nlter: in the
event of frequently interrupted regeneration of
the diesel particulate Nlter
Mercedes-Benz recommends avoiding such oper-
ating conditions. You can obtain information concerning the servic-
ing of y

our vehicle from a qualiNed specialist
workshop, e.g. a Mercedes-Benz service centre. Displaying the service due date
On-board computer:
4 Service 5
ASSYST PLUS
The ne

xt service due date is displayed. 
To exit the display: pr
ess the back button
( on the steering wheel.
Bear in mind the following related topic:
= Oper

ating the on-board computer
( page 251). Information on regular maintenance work
*
NOTE Pr
emature wear through failure to
observe service due dates Maintenance work which is not carried out at
t
he right time or incompletely can lead to
increased wear and damage to the vehicle. 
Adhere to the prescribed service inter-
v
als. 
Always have the prescribed maintenance
w

ork carried out at a qualiNed specialist
workshop. Notes on special service requirements
The prescribed service interval is based on nor-
mal oper

ation of the vehicle. Have the mainte-
nance work carried out more osen than prescri-
bed if operating conditions are diPcult or the
vehicle is subject to increased stress.
The ASSYST PLUS service interval display is only
an aid. It is the responsibility of the driver of the
vehicle to have maintenance work carried out
more osen than prescribed due to actual operat-
ing conditions and/or stresses.
Examples of arduous operating conditions:
= Regular city driving with frequent intermediate
stops
= Mainly short-distance driving Maintenance and care
303

=
F requent operation in mountainous terrain or
on poor road surfaces
= When the engine is osen les idling for long
periods
= Operation in particularly dusty conditions
and/or if air-recirculation mode is frequently
used
In these or similar operating conditions, have the
interior air Nlter, air Nlter, engine oil and oil Nlter,
for example, changed more frequently. Check the
tyres more frequently if the vehicle is operated
under increased stress. Further information can
be obtained at a qualiNed specialist workshop. Battery disconnection periods
The ASSYST PLUS service interval display can cal-
culat
e the service due date only when the battery
is connected. 
Display and note down the service due date
on t

he instrument display before disconnect-
ing the battery ( page 303). Maintenance Management
Notes about Maintenance Management
If the Maintenance Management service is activa-
t

ed, relevant data is automatically transferred to
the Mercedes-Benz customer centre.
The customer centre transmits the data to the
service partner that you have entered on the
Mercedes me website at: http://
www.mercedes.me. You will then receive individ-
ual recommendations regarding the maintenance
of your vehicle.
% The calculation of the optimal transmission
time of t

he maintenance request to the
service partner is subject to technical limita-
tions that may cause the maintenance recom-
mendation to be perceived as too early or too
late or not to be made at all. In this case, you
can conveniently arrange a maintenance
appointment with the customer centre via the
maintenance reminder in the multimedia sys-
tem.
% Maintenance Management and the mainte-
nance r

eminder in the multimedia system are
not available in every country. Contact a Mercedes-Benz service centre to Nnd
out
whe
ther this function is available in your coun-
try. Data transferred when using Maintenance Man-
ag

ement When the service is activated, relevant data is
aut

omatically transferred to determine the
required scope of maintenance as well as fault
detection and fault rectiNcation.
Details on data transfer can be found in the data
protection information for the Mercedes me con-
nect services. These can be found at: https://
www.mercedes.me under "My Mercedes me
account", "Terms of use".
% Maintenance Management and the mainte-
nance r

eminder in the multimedia system are
not available in every country. Telediagnostics
Notes about Telediagnostics
%
This service is not available in all countries. 304
Maintenance and care

The vehicle can detect if certain wear parts need
t
o be replaced or if malfunctions have occurred in
vehicle systems. If the Telediagnostics service is
activated, relevant data is automatically transmit-
ted to the manufacturer. If fault conditions are
detected by the vehicle system self-diagnosis, the
system transmits recommendations for action to
the Mercedes-Benz customer centre depending
on the fault detected. The customer centre trans-
mits the data to the service partner that you have
entered on the Mercedes me website at: http://
www.mercedes.me.
For selected faults, the notiNcation that a mal-
function has been detected may appear in the
multimedia system with a request to contact the
Mercedes-Benz Customer Centre. From this mes-
sage, a call can be made directly to the customer
centre for assistance.
% The transmission of a no
tiNcation to the multi-
media system depends on the country, vehi-
cle model and equipment and requires a fast
data connection, over which the service pro-
vider has no inOuence.
% Reliable fault detection is subject to technical
limit
ations. Therefore, only a limited selection of faults can be detected and recommenda-
tions f
or action transmitted to the customer
centre and the service partners. Mercedes-
Benz AG is continuously working on the
expansion of this service. The fault detection
depends on the country, vehicle model and
equipment. Data transferred when using Telediagnostics
When the service is activated, relevant data is
aut

omatically transferred to determine the
required scope of maintenance as well as fault
detection and fault rectiNcation.
Details on data transfer can be found in the data
protection information for the Mercedes me con-
nect services. These can be found at: https://
www.mercedes.me under "My Mercedes me
account", "Terms of use".
% The scope of the data transmitted depends on
t

he vehicle model and equipment. For techni-
cal reasons, not all data is available at all
times. Engine compartment
Active bonnet (pedestrian protection)

qOper
ation of the active bonnet (pedestrian pro-
tection)
In certain accident situations, the actuation of the
active bonnet reduces the risk of injury to pedes-
trians. The rear area of the bonnet is raised by
approximately 80 mm.
Aser being triggered, the active bonnet remains in
the raised position. Limited visibility due to the
raised bonnet cannot be ruled out.
Aser the active bonnet has been actuated, pedes-
trian protection may be limited.
Have the full functionality of the active bonnet
restored immediately in a qualiNed specialist
workshop.
If necessary, adjust your seat position and drive
carefully to a qualiNed specialist workshop. If a
safe continued journey is not possible, contact a
qualiNed specialist workshop. Maintenance and care
305

Opening and closing the bonnet
&
WARNING Risk of accident due t o driving
with the bonnet unlocked
The bonnet may open and block your view. 
Never release the bonnet when driving. 
Before every trip, ensure that the engine
bonne

t is locked. &
WARNING Risk of accident and injur
y
when opening and closing the bonnet
The bonnet may suddenly drop into the end
position.
Ther

e is a risk of injury for anyone in the
engine bonnet's range of movement. 
Do not open or close the bonnet if there
is a per

son in the bonnet's range of
movement. &
WARNING Risk of bur
ns when opening the
bonnet
If you open the bonnet in the event of an over-
heat
ed engine or Nre in the engine compart-
ment, the following situations may occur:
= You may come into contact with hot gases.
= You may come into contact with other
escaping hot operating Ouids. 
Before opening the bonnet, allow the
engine t
o cool down. 
In the event of a Nr
e in the engine com-
partment, keep the bonnet closed and
call the Nre service. &
WARNING Risk of injur
y due to moving
parts
Components in the engine compartment may
continue t
o run or start unexpectedly even
when the drive system is switched oM.
Observe the following if you must open the
bonnet: 
Switch oM t
he vehicle. 
Never touch the danger zones surround-
ing mo

ving components, e.g. the rotation
area of the fan. 
Remove jewellery and watches. 
Keep items of clothing and hair away
fr
om moving parts. &
WARNING Risk of injur
y from touching
components under voltage
The ignition system and the fuel injection sys-
t
em operate at high voltage. You could receive
an electric shock. 
Never touch ignition system or fuel injec-
tion sy

stem components when the vehi-
cle is switched on. The live components include the following, for
e

xample:
= Ignition coils
= Fuel injectors 306
Maintenance and care

=
Electr ic lines to the ignition coils and the fuel
injectors &
WARNING Risk of bur
ns from hot compo-
nent parts in the engine compartment
Certain component parts in the engine com-
par
tment can be very hot, e.g. the engine, the
cooler and parts of the exhaust system. 
Allow the engine to cool down and only
t
ouch component parts described in the
following. &
WARNING Risk of injur
y from using the
windscreen wipers when the bonnet is
open
If the windscreen wipers start moving when
t
he bonnet is open, you could be trapped by
the wiper linkage. 
Always switch oM t
he windscreen wipers
and the vehicle Nrst if you need to open
the bonnet. Opening the bonnet

To release the bonnet, pull on handle 1. 
Push handle 2 of t
he bonnet catch upwards
and lis the bonnet until it opens automatically.
Closing the bonnet 
Lower the bonnet to a height of around 20 cm
and t
hen allow it to fall, applying a little force
as you let it go. Maintenance and care
307


If the bonnet can still be lised slightl y, open
the bonnet again and close it with a little more
force until it engages correctly. Engine oil

qChec
king the engine oil level using the on-
board computer
Requirements: = The engine has been warmed up.
= The vehicle is parked on a level surface.
= The engine is running at idle speed.
= The bonnet is closed.
The engine oil level is determined during driving.
Determining the engine oil level can take up to
30 minutes with a normal driving style and even
longer with an active driving style. On-board computer:
4 Service 5
Engine oil level
One of t

he following messages will appear on the
instrument display:
= Engine oil level Measuring now : measurement
of the oil level is not yet possible. 
Repeat the request aser a maximum of
30 minut
es' driving.
= Engine oil level OK and t
he bar display for
indicating the oil level on the instrument dis-
play is green and is between "min" and "max":
the oil level is correct.
= Engine oil level Add 1,0 l and the bar display
for indicating the oil level on the instrument
display is orange and is below "min": 
Add 1 l of engine oil.
= Reduce engine oil level and t

he bar display for
indicating the oil level on the instrument dis-
play is orange and is above "max": 
Drain oM an
y excess engine oil that has been
added. To do so, consult a qualiNed specialist
workshop.
= For engine oil level turn on ignition 
Switch on the vehicle to check the engine oil
le

vel.
= Engine oil level System inoperative : The oil
le

vel sensor is defective or not connected. 
Consult a q
ualiNed specialist workshop.
= Engine oil level System currently unavail. 
Close the bonnet.

qT
opping up engine oil &
WARNING Risk of bur
ns from hot compo-
nent parts in the engine compartment
Certain component parts in the engine com-
par
tment can be very hot, e.g. the engine, the
cooler and parts of the exhaust system. 
Allow the engine to cool down and only
t
ouch component parts described in the
following. 308
Maintenance and care

&
WARNING Risk of Nr e and injury from
engine oil
If engine oil comes into contact with hot com-
ponent par
ts in the engine compartment, it
may ignite. 
Make sure that no engine oil is spilled
ne
xt to the Nller opening. 
Allow the engine to cool oM and t
hor-
oughly clean the engine oil from compo-
nent parts before starting the vehicle. *
NOTE Engine damag
e caused by an incor-
rect oil Nlter, incorrect oil or additives 
Do not use engine oils or oil Nlt
ers which
do not correspond to the speciNcations
explicitly prescribed for the service inter-
vals. 
Follow the instructions on the service
int

erval display for changing the engine
oil and observe the prescribed change
intervals. 
Do not use additives. *
NOTE Damag
e caused by topping up too
much engine oil Too much engine oil can damage the engine or
t

he catalytic converter. 
Have excess engine oil removed at a
q

ualiNed specialist workshop. %
Depending on driving style, the vehicle con-
sumes up t
o 0.8 litres of oil per 1000 km. The
oil consumption may also be higher than this
when the vehicle is new or if you frequently
drive at high engine speeds. 
Turn cap 1 anti-cloc
kwise and remove it. 
Top up the engine oil. 
Replace cap 1 and tur
n it clockwise until it
engages. 
Check the oil level again (  pag
e 308). Maintenance and care
309