2018 MERCEDES-BENZ CLA COUPE service

the size description, depending on the man-
ufacturer (e.g. 245/40ZR18).
The service specification is made up of load-
bearing index Aand spee drating B.
RIf the size description of your tire includes
"ZR" and there ar enoservice specifications,
as kt he tire manufacturer in order to fin dout
the maximum speed.
If as ervice specification is available, the max-
imum spee dislimited according to the speed
rating in the service specification. Example:
245/40Z R1897Y.Int his example," 97 Y" is
the service specification. The letter "Y" rep-
resents the speed rating. The maximum
speed of the tire is limited to 186 mph
(300 km/h).
RThe size descriptionf or all tires with maxi-
mum speedsofo ver 186 mph (300 km/h)
must include "ZR" andthe service specifica-
tion must be given in parentheses.E xample:
275/40 ZR 18 (99 Y) .Speed rating "(Y)" indi-
cates that the maximum speed of the tire is
over 186 mph (300 km/h). Ask the tire man-
ufacturer aboutt he maximum speed.
All-weather tires and winter tires
IndexSpeed rating
QM +S1up to 100 mph (160 km/h)
TM+S1up to 118 mph (190 km/h)
HM +S1up to 130 mph (210 km/h)
VM+S1up to 149 mph (240 km/h)
iNot all tires with the M+S marking provide
the driving characteristics of winter tires. In
addition to the M+S marking, winter tires also
have the isnowflake symbo lonthe tire
wall. Tires with this marking fulfill the require-
ments of the Rubber Manufacturers Associa-
tion (RMA) and the Rubber Association of
Canada (RAC) regarding the tire traction on
snow. They have been especially developed
for driving on snow.
An electronic speed limiter prevents you rvehi-
cle from exceeding aspeed of 130 mph
(210 km/h).
The speed rating of tires mounted at the factory
may be higher than the maximum speed that the
electronic speed limiter permits. Make sure that you
rtires have the required
speed rating, e.g. when buying new tires. The
required speed rating for you rvehicle can be
found in the "Tires" section (
Ypage 312).
Further information aboutr eading tire data can
be obtained from any qualifieds pecialist work-
shop.
Load index
In addition to the load-bearing index, load
index :may be imprinted after the letters that
identify speed rating on the sidewall of the tire.
Speed rating (
Ypage 302).
RIf no specification is given: no text (as in the
example above), represents astandard load
(SL) tire
RXL or ExtraL oad: represents areinforced tire
RLight Load: represents alightl oad tire
RC, D, E: represents aload range that depends
on the maximum load that the tire can carry at
ac ertain pressure
iTire data is vehicle-specific and may deviate
from the data in the example.
Maximum load rating
1Or M+S ifor winter tires.
304Allabout wheels and tires
Wheelsa nd tires

differentfor 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-han dfronts eat to its rearmost
position.
XFold floor covering :upwards.
You will see VIN ;.
The VIN can also be found on the vehicle iden-
tification plate (
Ypage 314).
The VIN can also be found at the lower edge of
the windshield (
Ypage 315).
Engine number
:Emission control information plate, includ-
ing the certification of both federal and Cali-
fornian emissionss tandards
;VIN (on the lower edge of the windshield)
=Engine number (stamped int othe crank-
case)
Service productsa nd filling capaci-
ties
Important safetyn otes
GWARNING
Service product smay be poisonous and haz-
ardous to health. There is arisk of injury.
Comply with instructions on the use, storage
and disposal of servicep roductsonthe labels
of the respective original containers. Always
stor eservicep roductss ealed in their original
containers. Always keep servicep roductsout
of the reach of children.
HEnvironmental note
Dispose of servicep roductsinanenviron-
mentally responsible manner.
Service product sinclude the following:
RFuels
RLubricants (e.g. engin eoil, transmission oil)
RCoolant
RBrakef luid
RWindshield washer fluid
RClimate control system refrigerant
Components and servicep roductsmust match.
Only use productsr ecommended by Mercedes-
Benz. Damage which is caused by the use of
productsw hich have not been recommended is
not covered by the Mercedes-Benz warrant yor
goodwill gestures .Productsa pproved by
Mercedes-Benz are listed in this Operator's
Manual in the appropriate section.
Information on tested and approved products
can be obtained at aMercedes-Benz Service
Center or on the Internet at
http://bevo.mercedes-benz.co m.
You can recogniz eservice products approvedb y
Mercedes-Ben zbythe followingi nscription on
the containers:
RMB-Freigabe (e.g. MB-Freigabe 229.51)
RMB-Approval (e.g. MB-Approval 229.51)
Other designation sorrecommendations indi-
cat eal evel of quality or aspecification in
accordanc ewith an MB Shee tNumber (e.g. MB
229.5). They have not necessarily been
approvedbyM ercedes-Benz.
Service productsa nd filling capacities315
Technical data
Z

Other identifications, for example:
R0W-30
R5W-30
R5W-40
Fuel
Important safety notes
GWARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is arisk 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 arisk of injury.
You must make sure that fuel does not come into contact with your skin, eyes or clothing
and that it is not swallowed. Do not inhale fuel
vapors. Keep fuel awayf rom children.
If you or others come into contact with fuel,
observe the following:
RWash awayf uel 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.Don ot 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)
Allo ther models14.8 US gal
(56.0 l)
ModelOf which
reserve
Mercedes‑AM GvehiclesApprox.
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 refue lvehicles with a
gasoline engine. Do not switch on the ignition
if you accidentally refue lwith the wrong fuel.
Otherwise, the fuel wil lenter the fuel system.
Even smal lamounts of the wrong fuel could
resul tind amage to the fuel system and the
engine. Notify aqualified specialist workshop
and have the fuel tank and fuel lines drained
completely.
!Only refue lusing unleaded premium grade
gasoline with at least 91 AKI/95 RON.
iE10 fuel contains up to 10% bioethanol.
Yourv ehicleisE 10-compatible. You can
refue lyou rv ehicleu sing E10 fuel.
!Only use the fuel recommended. Operating
the vehiclew ith other fuelscan leadtod am-
age to the fuel system, engine and exhaust
system.
!Do not use the following:
RGasoline with more than 10% ethanol
RE100 (100% ethanol)
RGasoline with methanol
RM100 (100% methanol)
RGasoline with metalliferous additives
RDiesel
316Service products and fillingc apacities
Technical data

Do not mix such fuelswitht he fuel recom-
mended for your vehicle.
!To ensur ethe longevity and full perform-
ance of the engine ,onlyp remium-grade
unleade dgasoline must be used.
If standard unleade dgasoline is unavailable
and yo uhavetor efuelwithu nleade dgasoline
of alower grade ,observe the following pre-
cautions:
ROnlyf illt he fuel tank to half full with regular
unleade dgasoline and fil lthe res twithp re-
mium-grad eunleade dgasoline as soo nas
possible.
RDo not drive at the maximum speed.
RAvoi dsudde nacceleratio nand engine
speeds ove r3,000 rpm.
Yo uw illu sually find informatio nabout the fuel
grade on the fuel pump. If yo ucanno tfind the
labe lont he fuel pump, as kthe gass tationstaff.
iFor furtheri nformation, consul taqualified
specialis tworkshop or visit
http://www.mbusa.com (USA only).
CL A2 50,CLA 250S port, CL A2504MATIC,
CL A2 50Sport 4MATIC: asatemporary meas-
ure, if the recommende dfuelisn ot available,
yo um ayalso us eregular unleade dgasoline with
an octane rating of 88 AKI /93 RON.
All othe rmodels: asatemporary measure, if
the recommende dfuelisn otava
ilable, yo
umay
also us eregular unleade dgasoline with an
octane rating of 87 AKI/91 RON. Thi smay
reduce engine performance and increase fuel
consumption. Avoi ddrivin gatf ullt hrottle and
sudden acceleration. Never refue lusing gaso-
line with alower AKI.
Informatio nonrefueling (
Ypage 139).
Additives
!Operating the engine with fuel additives
adde dlater can lead to engine failure. Do not
mix fuel additive swithf uel. Thisd oesn ot
includ eaddit ivesfor the remova land preven-
tio nofr esidue buildup. gasoline must onl ybe
mixed with additive srecommende dby
Mercedes-Benz. Compl ywitht he instructions
for us eonthe product label. Mor einformation
abou trecommende daddit ivesc an be
obtained froma ny authorizedMercedes-Benz
Center.
Mercedes-Benz recommends thaty ouuseb ran-
de df uels thath avea ddit ives. The fuel quality availabl
einsomecountries may
not be sufficient. Residu ecould buil dupinthe
fuel injectio nsystem as aresult. In such cases,
and in consultation with an authorized
Mercedes-Benz Center, the fuel maybem ixed
with the cleaning additive recommende dby
Mercedes-Benz. Yo umusto bserve the notes
and mi
xing ratio sspecifie dont he container.
Engine oil
General notes
!Do not us eengine oi lorano ilfilter with
specifications deviating fromt hoseexpressly
required for the prescribe dservic eintervals.
Do not change the engine oi loroilfilter in
order to set replacement intervals longe rthan
thos eprescribed. Thi scould otherwis ecause
damage to the engine or exhaust gasa fter-
treatment.
Follo wthe instructions on the servic einterval
displa yfor changing the engine oil. Thi scould
otherwis ecause damage to the engine or
exhaust gasa ftertreatment.
When handling engine oil, observe the important
safety note sonserviceproducts (
Ypage 315).
The engine oils ar ematchedtot he performance
of Mercedes-Benz engine sand servic eintervals.
Yo us houl dtherefore onl yuseengine oils and oil
filters thata reapproved for vehicles with main-
tenance systems.
For alistofa pproved engine oils and oi lfilters,
consul tanauthorize dMercedes-Benz Center.
Or visit the website
http://bevo.mercedes-benz.co m.
The table shows which engine oils have been
approved for your vehicle.
Service products and filling capacities317
Technical data
Z

ModelMB-Freigabe orMB-Approval
All models229.5
Use only SAE 0W-40 or SAE 5W-40 engine oils
for Mercedes-AMG vehicles.
iMB approval is indicated on the oil contain-
ers.
Fillingc apacities
The following values refer to an engine oil
change, including the oil filter.
ModelCapacity
Mercedes‑AM Gvehicles5.8 US qt (5.5 l)
All other models5.9 US qt (5.6 l)
Additives
!Do not use any additives in the engine oil.
This could damage the engine.
Brake fluid
GWARNING
The brake flui dconstantly absorbs moisture
from the air. This lowers the boiling point of
the brake fluid. If the boiling point of the brake
flui dist oo low,v aporpockets may form in the
brake system when the brakes are applied
hard. This would impair braking efficiency.
There is arisk of an accident.
You should have the brake flui dreneweda t
the specified intervals.
When handling brake fluid, observe the impor-
tant safety notes on service products
(
Ypag e315).
The brake flui dchange interval scan be found in
the Maintenance Booklet.
Only use brake flui dapproved by Mercedes-
Benz in accordance with MB-Freigabe or MB-
Approval3 31.0.
Information about approved brake flui dcan be
obtained at any qualified specialist workshop or
on the Internet at
http://bevo.mercedes-benz.com.
iHave the brake flui dregularl yreplaced at a
qualified specialist workshop and the replace-
ment confirmed in the Maintenance Booklet.
Coolant
Important safety notes
GWARNING
If antifreeze comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is arisk of fire and injury.
Let the engine cool down before you add anti-
freeze. Make sure that antifreeze is not spilled
next to the filler neck. Thoroughly cleant he
antifreeze from components before starting
the engine.
!Only add coolant that has been premixed
with the desired antifreeze protection. You
coul dotherwise damage the engine.
Further information on coolants can be found
in the Mercedes-Benz Specifications for Ser-
vice Products, MB BeVo 310.1, e.g. on the
Internet at http://bevo.mercedes-benz.com.
Or contact aqualified specialist workshop.
!Always use asuitable coolant mixture, even
in countries where high temperatures prevail.
Otherwise, the engine cooling system is not
sufficiently protected from corrosiona nd
overheating.
iHave the coolant regularl yreplaced at a
qualified specialist workshop and the replace-
ment confirmed in the Maintenance Booklet.
Comply with the important safety precautions
for service products when handling coolant
(
Ypag e315).
The coolant is amixture of water and corrosion
inhibitor/antifreeze concentrate. It performs
the following tasks:
RAnti-corrosion protection
RAntifreeze protection
RRaising the boiling point
If the coolant has antifreeze protection down to -35 ‡(-37 †), the boiling point of the coolant
during operation is approximatel y266 ‡
(130 †).
318Servicep roducts and filling capacities
Technical data

The antifreeze concentrate/corrosion inhibitor
concentration in the engine cooling system
should:
Rbe at least 50%. This will protectthe engine
cooling system against freezin gdown to
approximately -35 ‡(-37 †)
Rnot exceed 55% (antifreez eprotection down
to -49 ‡[-45 †]) .Otherwise ,hea tw ill no tbe
dissipated as effectively
Mercedes-Ben zrecommends acoolan torc or-
rosio ninh ibitor/antifreez econcentrat ein
accordance wit h
MB Specification sfor Servic eProducts 310. 1.
iWhen the vehicle is first delivered, it is filled
with acoolant mixture that ensures adequate
antifreeze and anti-corrosion protection.
iThe coolant is checked with every mainte-
nanc einterval at aqualified specialist work-
shop.
Filling capacities
ModelCapacity
Mercedes ‑AMG
vehiclesApprox .12.6USq t
(11.9l )
Allo ther modelsApprox. 8.2 US qt
(7.8 l)
Windshield washe rsystem
Important safety notes
GWARNING
Windshieldw asher concentrate coul dignite if
it comes into contact with hot engine compo-
nents or the exhaust system .There is arisk of
fire and injury.
Make sure that no windshield washer con-
centrate is spilled next to the filler neck.
!Only MB SummerFi tand MB WinterFit
washer flui dshould be mixed together. The
sprayn ozzles may otherwise become
blocked.
Do not use distille dorde-ionized water. Other-
wise, the levels ensor may giveafals ereading. When handling washer fluid, observe the impor-
tant safety notes on service products
(
Ypag
e315).
At temperatures above freezing:
XFill the washer flui dreservoir with amixture of
water and windshield washer fluid, e.g. MB
SummerFit.
Add 1part MB SummerFi tto100 parts water.
At temperatures below freezing:
XFill the washer flui dreservoir with amixture of
water and washer fluid, e.g. MB WinterFit.
For the correct mixing ratio refer to the infor-
mation on the antifreeze reservoir.
iAdd windshield washer fluid, e.g. MB Sum-
merFit or MB WinterFit, to the washer flui dall
yea rround.
Climate control system refrigerant
Important safety notes
The climate control system of you rvehicleisf il-
led with refrigerant R ‑134a.
The instruction label regarding the refrigerant
type use dcan be found on the left, on the under-
side of the hood.
!Only the refrigerant R ‑134a and the PAG oil
approved by Mercedes-Benz may be used.
The approved PAG oil may not be mixed with
any other PAG oil that is not approved for
R-134a refrigerant. Otherwise, the climate
control system may be damaged.
Service work, such as refilling with refrigerant or
replacing component parts, may only be carried
out by aqualified specialist workshop. All appli-
cabl eregulations, as wellasS AE standard J639,
must be adhered to.
Always have work on the climate control system
carrie dout at aqualified specialist workshop.
Service products and filling capacities319
Technical data
Z

Refrigerant instructionlabel
Example:refrigerant instruction label
:
Warning symbol
;Refrigerant filling capacity
=Applicabl estandards
?PAG oilp artn umber
AType of refrigerant
Warning symbol :advises yo uabout :
RPossible dangers
RHaving service work carrie doutataq uali fied
specialist workshop
Fillin gcapacities
ModelRefrigerant
Mercedes ‑AMG
vehicles23.6 ±0.4 oz
(670 ±10g )
Allo the rm odels22.9 ±0.4 oz
(650 ±10g )
ModelPAG oil
All models4.2 oz
(120 g)
Vehicle data
General notes
Please note that for the specified vehicled ata:
RThe heights specified may vary asaresul tof:
-Tires
-Load
-Condition of the suspension
-Optionale quipment
ROptionalequipment reduces the maximum
payload.
Dimensions and weights
Model:
Height when opened
Mercedes‑AM Gvehicles68.0 in
(1727 mm)
All other models68.3 in
(1737 mm)
Model
Vehicle width
including exterior
mirrors80.0 in (2032 mm)
Wheelbase106.3 in (2699 mm)
Turning radius36.1 ft (11.0 m)
Turning circle,
Mercedes-AMG
vehicles36.2 ft (11.04 m)
320Vehicle data
Technical data