MERCEDES-BENZ CLS COUPE 2022 Owners Manual

*
NOTE Invalidation of the operating permit
due to failure to comply with the instruc-
tions for installation and use The operating permit may be invalidated if the
ins
tructions for installation and use of two-way
radios are not observed. 
Only use approved frequency bands. 
Observe the maximum permissible out-
put po
wer in these frequency bands. 
Only use approved aerial positions. 1
Front roof area
2 Rear roof area
3 Rear wings
4 Boot lid
On the rear wings, it is recommended that you Nt
t
he aerial on the side of the vehicle closest to the
centre of the road. Use Technical
SpeciNcation ISO/T
S 21609 (Road
Vehicles !

Frequency band Maximum transmis-
sion output
2!

Vehicle
identiNcation plat e, VIN and engine num-
ber overview
Vehicle identiNcation plate Vehicle
identiNcation plat
e (example: Kuwait)
1 Vehicle manufacturer
2 Place of manufacture
3 Manufacturing date
4 Vehicle model
5 VIN Vehicle
identiNcation plat e (example: all other
countries)
1 Vehicle manufacturer
2 EU general operating permit number (only for
cer

tain countries)
3 VIN (vehicle identiNcation number)
4 Maximum permissible gross vehicle weight
(k
g) 360
Technical data

5
Maximum permissible gross weight of vehicle
combination (k g) (only for speciNc countries)
6 Maximum permissible front axle load (kg)
7 Maximum permissible rear axle load (kg)
8 Paint code
% The data shown in the illustration is example
dat
a. VIN below the front right-hand seat 1
Imprinted VIN (vehicle identiNcation number)
2 Floor covering VIN at the lower edge of the windscreen
1
VIN (vehicle identiNcation number) as label
The VIN as a label at the lower edge of the wind-
scr
een is only available in some countries.
Engine number
The engine number is stamped into the crank-
case. Further information can be obtained at a
qualiNed specialist workshop. Technical data
361

Operating Ouids
Notes on operating
Ouids*
NOTE Mercedes-AMG vehicles 
Observe the notes in the Supplement.
Y
ou could otherwise fail to recognise
dangers. &
WARNING Risk of injur
y due to harmful
operating Ouids
Operating Ouids can be t
oxic.
When using, storing and disposing of
oper

ating Ouids, observe the imprints on
the respective original containers. 
Always keep operating Ouids in t
he
sealed original container. 
Always keep children away from operat-
ing Ouids. +
ENVIRONMENTAL NOTE
P
ollution of the
environment due to irresponsible disposal
of operating Ouids Incorrect disposal of operating
Ouids can
cause consider
able damage to the environ-
ment. 
Dispose of operating Ouids in an en
viron-
mentally responsible manner. Operating Ouids
include t
he following:
= fuels
= DeNOx agent AdBlue n
for exhaust gas aser-
treatment
= lubricants
= Coolant
= Brake Ouid
= windscreen washer Ouid
= climate control system refrigerant
Only use products approved by Mercedes-Benz.
Damage caused by the use of products that have
not been approved is not covered by the
Mercedes-Benz warranty or goodwill gestures. The operating Ouids
appr
oved by Mercedes-Benz
can be identiNed by the following inscriptions on
the container:
= MB-Freigabe (e.g. MB-Freigabe 229.51)
= MB-Approval (e.g. MB-Approval 229.51)
Further information on approved operating Ouids:
= in the Mercedes-Benz SpeciNcations for Oper-
ating Fluids by entering the designation
- At https://operatingOuids.mercedes-
benz.com
= At a qualiNed specialist workshop &
WARNING Risk of Nr
e or explosion from
fuel
Fuels are highly Oammable. 
Fire, naked Oames, smoking and cr
eating
sparks must be avoided. 
Before and during refuelling, switch oM
t
he vehicle and, if Ntted, the stationary
heater. 362
Technical data

&
WARNING Risk of injur y from fuels
Fuels are poisonous and hazardous to your
healt
h. 
Do not swallow fuel or let it come into
cont

act with skin, eyes or clothing. 
Do not inhale fuel vapour. 
Keep children away from fuel. 
Keep doors and windows closed during
t

he refuelling process.
If you or other people come into contact with
fuel, obser
ve the following: 
Immediately rinse fuel oM y
our skin with
soap and water. 
If fuel comes into contact with your eyes,
immediat
ely rinse them thoroughly with
clean water. Seek medical attention
immediately. 
If you swallow fuel, seek medical atten-
tion immediat

ely. Do not induce vomit-
ing. 
Change immediately out of clothing that
has come int
o contact with fuel. Flexible-fuel vehicles can be refuelled with the fol-
lo

wing fuel types:
= unleaded petrol
= E85 fuel
= a mixture of E85 fuel and unleaded petrol
Flexible-fuel vehicles can be identiNed by the
Ethanol up to E85 sticker on the inside of the fuel
Nller Oap.
Depending on the country, the fuels you can use
in your vehicle may diMer from the information in
the Owner's Manual. The fuels that have been
approved for your vehicle can be found on the
instruction label on the inside of the fuel Nller Oap. Fuel

qInf
ormation on fuel quality for vehicles with a
petrol engine
Observe the notes on operating Ouids
(  page 362). *
NOTE Damag
e caused by the wrong fuel Even small amounts of the wrong fuel could
r

esult in damage to the fuel system, the
engine and the emission control system. 
Only refuel using unleaded, sulphur-free
spar
k-ignition engine fuel that conforms
to European EN 228, or an equivalent
speciNcation.
Fuel of this speciNcation ma
y contain up to
10% ethanol by volume. Your vehicle is suita-
ble for use with E10 fuel. 
See the information label in fuel Nller Oap
f
or other compatible fuels .
Never refuel with one of the following fuels: = Diesel
= R

egular petrol with an octane number
lower than 91 RON
= Petrol with more than 3% methanol by vol-
ume, e.g. M15, M30
= Petrol with additives containing metal Technical data
363

If you have accidentally refuelled with the
wr ong fuel: 
Do not switch on the vehicle. 
Consult a q
ualiNed specialist workshop.The following compatibility indications for fuel
appl

y to your vehicle: 1
For petrol with a maximum of 5% ethanol by
v
olume
2 For petrol with a maximum of 10% ethanol by
v
olume According to European standard EN 16942, you
can Nnd t

he compatibility indications in the follow-
ing locations:
= On the vehicle, on the information label on the
fuel Nller Oap ( page 171)
= On the fuel dispenser or pump nozzle suitable
for your vehicle throughout Europe
If the available fuel is not suPciently low in sul-
phur, it may produce unpleasant odours.
The recommended octane number for your vehi-
cle can also be found on the information label on
the fuel Nller Oap ( page 171).
% Vehicles with M256 petrol engine: if y
ou are
using 95 RON, there may be slight limitations
in performance that have no further conse-
quences.
Refuel only with super unleaded petrol with an
oct
ane number of at least 98 RON if you wish to
achieve maximum engine output. Alternatively,
you can also refuel using premium-grade unlea-
ded petrol with an octane number of at least
95 RON. As a temporary measure, if the recommended fuel
is no
t available, you may also use regular unlea-
ded petrol with an octane number of at least
91 RON. This may reduce engine output and
increase fuel consumption.
Never refuel using petrol of an even lower RON.
Further information on fuel can be obtained at a
Nlling station or a qualiNed specialist workshop.

qInformation on additives in petrol (vehicles with
petrol engine)
Observe the notes on operating Ouids
(  page 362).
* NOTE Damag
e from use of unsuitable
additives Even small amounts of the wrong additive may
lead t
o malfunctions occurring. 
Only add cleaning additives recommen-
ded b

y Mercedes-Benz to the fuel. Mercedes-Benz recommends that you use brand-
name fuels wit

h additives.364
Technical data

In some countries, the fuel available may not have
suPcient
additiv
es. Deposits could build up in the
fuel injection system as a result. In this case, in
consultation with a qualiNed specialist workshop
(e.g. a Mercedes-Benz service centre), mix the
fuel with the cleaning additive recommended by
Mercedes-Benz. Observe the notes and mixing
ratios indicated on the tank.

qInformation on fuel quality for vehicles with a
diesel engine
General notes
Observe the notes on operating Ouids
(  page 362). &
WARNING Risk of Nr
e from fuel mixture
If you mix diesel fuel with petrol, the Oash
point of t
he fuel mixture is lower than that of
pure diesel fuel. 
Never refuel using petrol in diesel
engines. 
Never mix petrol with diesel fuel. *
NOTE Damag
e caused by the wrong fuel Even small amounts of the wrong fuel could
r

esult in damage to the fuel system, the
engine and the emission control system.
Vehicles with a diesel particulate Nlter: 
Only refuel using sulphur-free diesel fuel
t

hat conforms to European standard
EN 590, or an equivalent speciNcation.
In countries without sulphur-free diesel
fuel, refuel using only low-sulphur diesel
fuel with a sulphur content less than
50 ppm.
Vehicle without diesel particulate Nlt
er: 
Only refuel using diesel fuel with a sul-
phur cont

ent less than 500 ppm.
Never refuel with one of the following fuels: = P

etrol
= Marine diesel
= Heating oil =
Pur
e fatty acid methyl ester or vegetable
oil
= ParaPn or kerosene
If you have accidentally refuelled with the
wrong fuel: 
Do not switch on the vehicle. 
Consult a q
ualiNed specialist workshop. The following compatibility indications for fuel
appl

y to your vehicle: Technical data
365

1
For diesel fuel with a maximum of 7% fatty
acid me thyl ester by volume (bio-diesel)
2 For diesel fuel with a maximum of 10% fatty
acid me
thyl ester by volume (bio-diesel)
According to European standard EN 16942 you
can Nnd t

he compatibility indications at the fol-
lowing locations:
= On the vehicle on the information label on the
fuel Nller Oap ( page 171)
= On the fuel dispenser or pump nozzle suitable
for your vehicle throughout Europe Information on low outside temperatures
R

efuel your vehicle with as much winter diesel fuel
as possible at the beginning of winter.
Before changing over to winter diesel fuel, the fuel
tank should be empty, if possible. When Nrst refu-
elling with winter diesel fuel, keep the fuel level
low, e.g. to reserve level. The fuel tank can be Nl-
led as usual when next refuelling.
Further information on fuel can be obtained at a
Nlling station or a qualiNed specialist workshop.

qTank content and fuel reserve
The total capacity of the fuel tank may vary,
depending on the vehicle equipment. Total fuel tank capacity Model
CLS 350
66.0 litres
CLS 450 4MATIC 66.0 litres
or
80.0 litr

es
All other models 50.0 litres
or
66.0 litr

es Reserve fuel tank
Model
CLS 450 4MATIC
7.0 litres
or
12.0 litr

es
All other models 7.0 litres366
Technical data

AdBlue
n
(vehicles with a diesel engine only)
qN
otes on AdBlue
n
Observe the notes on operating Ouids
(  page 362).
AdBlue n
is a water-soluble Ouid for the NOx
exhaust gas asertreatment of diesel engines.
It may be improper or punishable in some coun-
tries to operate a vehicle that uses no AdBlue n
or
one that does not comply with the speciNcations
of this Owner's Manual.
* NOTE Malfunctions due t
o the dilution of
AdBlue n
or the use of additive-enhanced
AdBlue n The function of the NOx exhaust gas
aser
-
treatment can be impaired by the use of
unsuitable denoxiNcation agents. 
Only use AdBlue n
in accor
dance with
ISO 22241. 
Do not dilute AdBlue n
wit
h water.
Do not use additive-enhanced AdBlue n
. *
NOTE Damag
e and malfunctions due to
impurities in AdBlue n Consequences of impurities in AdBlue
n
:
= incr

eased emission values
= damage to the catalytic converter
= NOx exhaust gas asertreatment malfunc-
tions 
Avoid impurities in AdBlue n
. AdBlue
n
r
esidues crystallise aser a period of
time, and contaminate the surfaces with which
they come into contact. Clean the dirty surfaces
with water as soon as possible.
When you open the AdBlue n
tank, small amounts
of ammonia vapour may escape. Do not inhale
any ammonia vapours that may be released. Only
Nll the AdBlue n
tank in well-ventilated areas.
qA
dBlue
n
Nlling capacity and consumption
Total capacity of AdBlue n
tank Model
Total capacity
All models 23.5 litres AdBlue
n
consum
ption
The average AdBlue n
consumption is between 1%
and 5% of fuel consumption. Like fuel consump-
tion, AdBlue n
consumption is highly dependent
upon driving style and operating conditions. For
this reason, your vehicle's actual consumption Ng-
ures in day-to-day operating conditions may diMer
from the consumption Ngures calculated. The fre-
quency at which you will have to top up AdBlue n
will also vary. Have the AdBlue n
supply checked
at a qualiNed specialist workshop before making
journeys outside Europe. Before a longer stay out-
side Europe, consult a qualiNed specialist work-
shop.
AdBlue n
range and Nll level
You can have the AdBlue n
range and level dis-
played on the driver's display. Technical data
367