Page 361 of 374
R 19
TiresWheels
BA: 235/35 ZR19 91 Y XL2BA: 8.0 J x 19 H2
Wheel offset: 1.89 in (48 mm)
Winter tires
R 17
TiresWheels
BA: 205/50 R17 93 H XL M+SiBA: 6.5 J x 17 H2
Wheel offset: 1.93 in (49 mm)
R 18
TiresWheels
BA: 225/40 R18 92 H XL M+Si2BA: 7.5 J x 18 H2
Wheel offset: 2.05 in (52 mm)
BA: 235/40 R18 95 H XL M+Si2BA: 8.0 J x 18 H2
Wheel offset: 1.89 in (48 mm)
CLA 250 Sport 4MATIC
Summer tires
R 18
TiresWheels
BA: 235/40 ZR18 95 Y XL2BA: 8.0 J x 18 H2
Wheel offset: 1.89 in (48 mm)
R 19
TiresWheels
BA: 235/35 ZR19 91 Y XL2BA: 8.0 J x 19 H2
Wheel offset: 1.89 in (48 mm)
2Use of snow chains not permitted. Observe the notes in the "Snow chains" section.
Wheel and tire combinations359
Wheels and tires
Z
Page 362 of 374
Winter tires
R 17
TiresWheels
BA: 205/50 R17 93 H XL M+Si2BA: 6.5 J x 17 H2
Wheel offset: 1.93 in (49 mm)
R 18
TiresWheels
BA: 225/40 R18 92 H XL M+Si2BA: 7.5 J x 18 H2
Wheel offset: 2.05 in (52 mm)
BA: 235/40 R18 95 H XL M+Si2BA: 8.0 J x 18 H2
Wheel offset: 1.89 in (48 mm)
Mercedes-AMG CLA 45 4MATIC
Summer tires
R 18
TiresWheels
BA: 235/40 ZR18 95 Y XL2BA: 8.0 J x 18 H2
Wheel offset: 1.89 in (48 mm)
R 19
TiresWheels
BA: 235/35 ZR19 91 Y XL2BA: 8.0 J x 19 H2
Wheel offset: 1.89 in (48 mm)
Winter tires
R 18
TiresWheels
BA: 215/45 R18 93 V XL M+SiBA: 7.5 J x 18 H2
Wheel offset: 1.67 in (42.5 mm)
BA: 235/40 R18 95 V XL M+Si2BA: 8.0 J x 18 H2
Wheel offset: 1.89 in (48 mm)
2Use of snow chains not permitted. Observe the notes in the "Snow chains" section.
360Wheel and tire combinations
Wheels and tires
Page 363 of 374
Useful information............................362
Information regarding technical
data .................................................... 362
Vehicle electronics ...........................362
Identification plates .........................364
Service products and filling capaci-
ties ..................................................... 365
Vehicle data ....................................... 371
361
Technical data
Page 364 of 374

Useful information
i
This Operator's Manual describes all
models and all standard and optional equip-
ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
iRead the information on qualified special-
ist workshops (
Ypage 25).
Information regarding technical data
i
The data stated here specifically refers to
a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for
the data for all vehicle variants and trim
levels.
Vehicle electronics
Retrofitting two-way radios and
mobile phones (RF transmitters)
GWARNING
The electromagnetic radiation from modified
or incorrectly retrofitted RF-transmitters can
interfere with the vehicle electronics. This can compromise the operational safety of the
vehicle. There is a risk of an accident.
You should have all work to electrical and
electronic equipment carried out at a qualified
specialist workshop.
GWARNING
The electromagnetic radiation from incor-
rectly operated RF transmitters can interfere
with the vehicle electronics, for example:
Rif the RF transmitter is not connected with
an exterior antenna
Rthe exterior antenna has been installed
incorrectly or is not a low-reflection type
This can compromise the operational safety
of the vehicle. There is a risk of an accident.
Have the low-reflection exterior antenna
mounted at a qualified specialist workshop.
When operating RF transmitters in the vehi-
cle, always connect them with the low-reflec-
tion exterior antenna.
!The operating permit may be invalidated if
the instructions for installation and use of
RF transmitters are not observed.
In particular, the following conditions must
be complied with:
Ronly approved wavebands may be used.
Rcompliance with the maximum permissi-
ble output in these wavebands is
required.
Ronly approved antenna positions may be used.
Excessive levels of electromagnetic radiation
may cause damage to your health and the
health of others. Using an exterior antenna
takes into account current scientific discus-
sions relating to the possible health hazards
that may result from electromagnetic fields.
362Vehicle electronics
Technical data
Page 365 of 374

Approved antenna positions
:
Front roof area
;Rear roof area
=Rear fender
?Trunk lid
iOn vehicles with panorama roof with
power tilt/sliding panel, installing an
antenna to the front or rear roof area is not
permitted.
On the rear fenders, it is recommended to
position the antenna on the side of the
vehicle closest to the center of the road.
Use the Technical Specification ISO/TS
21609 when retrofitting RF transmitters
(Road Vehicles - EMC guidelines for installa-
tion of aftermarket radio frequency transmit-
ting equipment). Observe the legal require-
ments for retrofittings.
If your vehicle has installations for two-way
radio equipment, use the power supply or
antenna connections intended for use with
the basic wiring. Be sure to observe the man-
ufacturer's additional instructions when
installing.
Deviations with respect to wavebands, maxi-
mum transmission outputs or antenna posi-
tions must be approved by Mercedes-Benz. The maximum transmission output (PEAK) at
the base of the antenna must not exceed the
following values:
WavebandMaximum
transmission output
Short wave
3 - 54 MHz100 W
4 m waveband
74 - 88 MHz30 W
2 m waveband
144 - 174 MHz50 W
Trunked radio/Tetra
380 - 460 MHz10 W
70 cm waveband
400 - 460 MHz35 W
Mobile communications
(2G/3G/4G)10 W
The following can be used in the vehicle with-
out restrictions:
RRF transmitters with a maximum transmis-
sion output of up to 100 mW
RRF transmitters with transmitter frequen-
cies in the 380 - 410 MHz waveband and a
maximum transmission output of up to 2 W
(trunked radio/Tetra)
RMobile telephones (2G/3G/4G)
There is no restriction for antenna positions
on the outside of the vehicle for the following
wavebands:
RTrunked radio/Tetra
R70 cm waveband
R2G/3G/4G
Vehicle electronics363
Technical data
Z
Page 366 of 374
Identification plates
Vehicle identification plate with vehi-
cle identification number (VIN)
XOpen thedriver's door.
You willsee vehicle identification plate :.
Example: vehicleidentification plat e(US Aonly)
;
VIN
=Vehicle model
Example: vehicl eidentification plat e(Canada only)
;
VIN
=Paint co de
iThe data shown on the vehicleidentifica-
tion plate isused only as an example. This
data isdifferent for every vehicle and can
deviate from the data shown here. You can
find the data applicable to your vehicle on
the vehicle identification plate.
Vehicle identification number (VIN)
XSlide the right-hand front seat to its rear-
most posit ion.
XFoldfloor covering :upwards.
You willsee VIN ;.
The VIN can also befound on the vehicle
identification plate (
Ypage 364).
The VIN can also befound at the lower edge of
the windshield (
Ypage 365).
364Identification plates
Technical data
Page 367 of 374

Engine number
:Emission control information plate,
including the certification of both federal
and Californian emissions standards
;VIN (on the lower edge of the windshield)
=Engine number (stamped into the crank-
case)
Service products and filling capaci-
ties
Important safety notes
GWARNING
Service products may be poisonous and haz-
ardous to health. There is a risk of injury.
Comply with instructions on the use, storage
and disposal of service products on the labels
of the respective original containers. Always
store service products sealed in their original
containers. Always keep service products out
of the reach of children.
HEnvironmental note
Dispose of service products in an environ-
mentally responsible manner.
Service products include the following:
RFuels
RLubricants (e.g. engine oil, transmission oil)
RCoolant
RBrake fluid
RWindshield washer fluid
RClimate control system refrigerant Components and service products must be
matched. Only use products recommended
by Mercedes-Benz. Damage which is caused
by the use of products which have not been
recommended is not covered by the
Mercedes-Benz warranty or goodwill ges-
tures. They are listed in this Mercedes-Benz
Operator's Manual in the appropriate section.
Information on tested and approved products
can be obtained at an authorized Mercedes-
Benz Center or on the Internet at
http://bevo.mercedes-benz.com.
You can recognize service products approved
by Mercedes-Benz by the following inscrip-
tion on the containers:
RMB-Freigabe (e.g. MB-Freigabe 229.51)
RMB-Approval (e.g. MB-Approval 229.51)
Other designations or recommendations indi-
cate a level of quality or a specification in
accordance with an MB Sheet Number (e.g.
MB 229.5). They have not necessarily been
approved by Mercedes-Benz.
Other identifications, for example:
R0 W-30
R5 W-30
R5 W-40
Fuel
Important safety notes
GWARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is a risk of fire and explo-
sion.
You must avoid fire, open flames, creating
sparks and smoking. Switch off the engine
and, if applicable, the auxiliary heating before refueling.
GWARNING
Fuel is poisonous and hazardous to health.
There is a risk of injury.
Service products and filling capacities365
Technical data
Z
Page 368 of 374

You must make sure that fuel does not comeinto contact with your skin, eyes or clothing
and that it is not swallowed. Do not inhale fuel
vapors. Keep fuel away from children.
If you or others come into contact with fuel,
observe the following:
RWash away fuel from skin immediately
using soap and water.
RIf fuel comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical assistance with-
out delay.
RIf fuel is swallowed, seek medical assis-
tance without delay. Do not induce vomit-
ing.
RImmediately change out of clothing which
has come into contact with fuel.
Tank capacity
ModelTotal capa- city
CLA 25013.2 US gal(50.0 l)
All other models14.8 US gal(56.0 l)
ModelOf whichreserve
Mercedes ‑AMG vehiclesApprox.
2.1 US gal (8.0 l)
All other modelsApprox.
1.6 US gal (6.0 l)
Gasoline
Fuel grade
!Do not use diesel to refuel vehicles with a
gasoline engine. Do not switch on the igni-
tion if you accidentally refuel with the
wrong fuel. Otherwise, the fuel will enter the fuel system. Even small amounts of the
wrong fuel could result in damage to the
fuel system and the engine. Notify a quali-
fied specialist workshop and have the fuel
tank and fuel lines drained completely.
!Only refuel using unleaded premium
grade gasoline with at least 91 AK I/
95 RON.
!Only use the fuel recommended. Operat-
ing the vehicle with other fuels can lead to
engine failure.
!Do not use the following:
RE85 (gasoline with 85% ethanol)
RE100 (100% ethanol)
RM15 (gasoline with 15% methanol)
RM30 (gasoline with 30% methanol)
RM85 (gasoline with 85% methanol)
RM100 (100% methanol)
RGasoline with metalliferous additives
RDiesel
Do not mix such fuels with the fuel recom-
mended for your vehicle.
!To ensure the longevity and full perform-
ance of the engine, only premium-grade
unleaded gasoline must be used.
If standard unleaded gasoline is unavaila-
ble and you have to refuel with unleaded
gasoline of a lower grade, observe the fol-
lowing precautions:
ROnly fill the fuel tank to half full with reg-
ular unleaded gasoline and fill the rest
with premium-grade unleaded gasoline
as soon as possible.
RDo not drive at the maximum speed.
RAvoid sudden acceleration and engine
speeds over 3,000 rpm.
You will usually find information about the fuel
grade on the pump. If you cannot find the
label on the pump, ask the sta
ff for assis-
tance.
366Service products and filling capacities
Technical data