2018 MERCEDES-BENZ CLA COUPE maintenance

Welcome to the world of Mercedes-Benz
We urge you to read this Operator's Manual
carefully and familiarize yourself with the vehi-
cle before driving. For yourown safety and a
longer vehiclel ife,follow the instructions and
warning notices in this Operator's Manual.
Ignoring them coul dresult in damage to the
vehicleorp ersonal injury to you or others.
Vehicle damage caused by failure to follow
instructions is not covered by the Mercedes-
Benz Limited Warranty.
The equipment or product designation of your
vehiclem ay vary depending on:
RModel
ROrder
RCountry specification
RAvailability
Mercedes-Benz therefore reservest he right to
introduce changes in the following areas:
RDesign
REquipment
RTechnicalf eatures
The equipment in you rvehiclem ay therefore
differf rom that shownint he descriptions and
illustrations.
The following are integralc omponents of the
vehicle:
RPrinted Operator's Manual
RMaintenance Booklet
REquipment-dependent supplements
Keep these documents in the vehicleata ll
times. If you sell the vehicle, alway spassa ll
documents on to the new owner.
You can als ouse the Mercedes-Benz Guides
App:
Your Operator's Manual:
Digital form inside the vehicle
The Digita lOperator's Manual provides
comprehensive and specifically adapted
information on you rvehicle's equipment
and multimedias ystem. It contains infor-
mative animations, individua llanguage
settings and an intuitive search function.
Booklet inside the vehicle
In addition to this manua land the afore-
mentioned digital media, you als ohave the
option to obtai nacomprehensive printed
versionoft he Supplement for you rmulti- medias
ystem from you rauthorized
Mercedes-Benz Center.
Digital form via the Internet
The Operator's Manual on the Internet pro-
videse asy access to all information
regarding you rvehiclea nd multimedias ys-
tem. It als oprovides helpful animations,
interesting background information and a
wid earrayofs earch options.
Digital form as an App
Using the Mercedes-Benz GuidesA pp, you
can view all the information on you rvehicle
and multimedias ystem via mobile Internet
or download it independently of network
access. Availabl efor smartphones or tab-
lets.
You can als ouse the Mercedes-Benz Guides
App:
Please note that the Mercedes-Benz GuidesA pp
may not yet be available in you rcountry.
Mercedes-Benz USA, LLC
Mercedes-Benz Canada,I nc.
AD aimler Company
1175842704
É1175842704eËÍ

Features.............................................. 242
Maintenancea nd care...................... 257
Engine compartment ........................... 257
ASSYST PLUS ...................................... 261
Care ..................................................... 262
Breakdown assistance .....................269
Where will Ifind...? .............................. 269
Fla ttire ................................................ 271
Battery (vehicle) .................................. 276
Jump-starting ....................................... 278
Towing and tow-starting ...................... 281
Fuses ................................................... 284
Wheels and tires ............................... 287
Important safety notes ........................ 287
Operation ............................................ 287
Winte roperation .................................. 289
Tir ep ressure ....................................... 290
Loading the vehicle .............................. 298
All aboutw heelsand tires................... 301
Changing awheel ................................ 307
Wheel and tire combinations ............... 312
Technical data ................................... 313
Information regarding technical data ... 313
Vehicl eelectronics .............................. 313
Identification plates ............................. 314
Service products and filling capaci-
ties ...................................................... 315
Vehicl edata. ........................................ 320
Contents3

Searching foramobilephone
(device manager )........................... 234
see also Digital Operator's Man-
ua l.................................................. 229
Telephony ...................................... 233
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Displa ymessage ............................ 197
Notes. ............................................ 318
Brake forc edistribution
see EBD (electronicb rake force
distribution)
Brake lamp
Replacing bulb s............................. 106
Brake lamps
Displa ymessage ............................ 202
Brakes
ABS .................................................. 61
BAS .................................................. 61
Brake fluid (notes) ......................... 318
Braking assistance appropriate to
the situation ..................................... 63
Displa ymessage ............................ 192
EBD .................................................. 67
Hil lstart assis t............................... 125
HOLD function ............................... 157
Important safety notes .................. 146
Maintenance .................................. 147
Parking brake ................................ 142
Riding tip s...................................... 146
Warning lamp ................................. 219
Brakin gassistancea ppropriate to
the situation
Function/note s................................ 63
Breakdown
Where will Ifind...? ........................ 269
see Fla ttire
see Tow-starting
see Towing away
Button sonthe steering wheel ......... 177
C
California
Important notice for retail cus-
tomers and lessees .......................... 25 Calling up
amalfunction
see Displa ymessages
Car
see Vehicle
Care
Carw ash. ....................................... 262
Carpets .......................................... 268
Displa y........................................... 266
Exhaus tpipe. ................................. 266
Exterior lights ................................ 265
Gear or selector lever .................... 267
Interior ........................................... 266
Matte finish ................................... 264
Notes. ............................................ 262
Paint .............................................. 263
Plastic trim .................................... 266
Power washer. ............................... 263
Rear vie wcamera .......................... 265
Roof lining ...................................... 268
Seatb elt. ....................................... 267
Seatc over..................................... 267
Sensors ......................................... 265
Steering wheel. .............................. 267
Trimp ieces. ................................... 267
Washing by hand ........................... 262
Wheels. .......................................... 264
Window s........................................ 264
Wipe rblade s.................................. 265
Woode ntrim .................................. 267
Carg ocom partmente nlargement ... 240
Carg otie dow nrings ......................... 241
CD
see also Digital Operator's Man-
ual.................................................. 229
CD player (on-board computer) ........ 183
Centerc onsole
Lower section .................................. 36
Upper section .................................. 35
Central locking
Automati cloc king (on-board com-
puter) ............................................. 187
Locking/unlocking (SmartKey). ....... 70
Changeofa ddress.............................. 26
Changeofo wnership.......................... 26
Changin gawheel
Wheels an dtires............................ 308
6Index

Lowering ........................................ 311
Maintenance .................................... 26
Parking foralong period. ............... 143
Pulling awa y................................... 125
Raising ........................................... 309
Reporting problems ......................... 28
Securing from rolling away ............ 309
Transporting .................................. 283
Unlocking (i nanemergency) ........... 77
Unlocking (SmartKey). ..................... 70
Vehicl edata. .................................. 320
Vehicl edata
Roof load (maximum) ..................... 320
Trunk load (maximum) ................... 320
Vehicl edimensions ........................... 320
Vehicl eemergencyl ocking ................ 77
Vehicl eidentificatio nnumber
see VIN
Vehicl eidentificatio nplate .............. 314
Vehicl etoolkit.................................. 270
Ventilation
Setting the vents ........................... 120
Video
Operating the DVD ......................... 183
see also Digital Operator's Man-
ual.................................................. 229
VIN
Seat. .............................................. 315
Type plate ...................................... 314
W
Warning and indicator lamps
ABS ................................................ 220
Active Brake Assist ........................ 227
Brakes ........................................... 219
Check Engine ................................. 224
Coolant .......................................... 225
Distance warning ........................... 227
ESP
®.............................................. 221
ESP®OFF ....................................... 222
Fue ltank ........................................ 224
Overview .......................................... 33
PASSENGER AIR BAG ...................... 41
Reserve fue l................................... 224
Restraint system ............................ 224
Seatb elt. ....................................... 218
SPORTh andling mode. .................. 222 Tire pressure monitor .................... 228
Warning triangle ................................ 270
Warranty .............................................. 25
Washer fluid
Displa ymessage ............................ 216
Weather display (COMAND)
see also Digital Operator's Man-
ual.................................................. 229
Wheel and tire combinations
Tires ............................................... 312
Wheel bolt tightenin gtorque ........... 311
Wheel chock ...................................... 309
Wheels
Changing awheel .......................... 307
Checking ........................................ 287
Cleaning ......................................... 264
Important safety notes .................. 287
Information on driving .................... 287
Interchanging/changing ................ 307
Mounting anew wheel. .................. 310
Removing awheel .......................... 310
Storing ........................................... 308
Tightening torque ........................... 311
Wheel size/tire size ....................... 312
Wheel sand tires
Changing awheel .......................... 308
Window curtai nair bag
Displa ymessage ............................ 199
Operation ......................................... 47
Windows
see Sid ewindows
Windshield
Defrosting ...................................... 117
Windshiel dwasher system
Adding washerf luid ....................... 260
Important safety notes .................. 319
Windshiel dwipers
Displa ymessage ............................ 216
Problem (malfunction) ................... 109
Replacing the wipe rblade s............ 108
Switching on/off. .......................... 107
Winter driving
Slippery roads urfaces ................... 148
Snow chains .................................. 290
Winter operation
Genera lnotes ................................ 289
Wi

nter tires
M+S tire s....................................... 289
Index21

systems, e.g. the brake system. Use only genu-
ine Mercedes-Benz parts or parts of equalqual-
ity. Only use tires, wheels and accessories that
have been specifically approved for your vehi-
cle.
Genuine Mercedes-Benz parts are subject to
strict quality control. Every part has been spe-
cifically developed,m anufactured or selected
for and adapted to Mercedes-Benz vehicles.
Therefore, only genuine Mercedes-Benz parts
should be used.
More than 300,000 different genuine
Mercedes-Benz parts are available for
Mercedes-Benz models.
All authorized Mercedes-Benz Centers maintain
as upply of genuine Mercedes-Benz parts for
necessary service and repair work. In addition,
strategically located parts delivery centers pro-
vide quick and reliable parts service.
Always specify the vehicle identification number
(VIN) when ordering genuine Mercedes-Benz
parts (
Ypage 314).
Operator's Manual
Vehicle equipment
i
This Operator's Manual describes all models
and all standard and optional equipment of
your vehicle available at the time of this Oper-
ator's Manual going to print. Country-specific
differences are possible.B ear in mind that
your vehicle may not feature all functions
described here. This also applies to safety-
relevant systems and functions. The equip-
ment in your vehicle may therefore differ from
that shown in the descriptions and illustra-
tions.
The original purchase agreement lists all sys-
tems installed in your vehicle.
Should you have any questions concerning
equipment and operation, please consult an
authorized Mercedes-Benz Center.
The Operator's Manual and Maintenance Book-
let are important documents and should be kept
in the vehicle.
Service and vehicleo peration
Warranty
The Limited Warranty for your vehicle applies in
accordance with the warranty terms and condi-
tions in the Service and Warranty Information
booklet.
Your authorized Mercedes-Benz Center will
replace and repair all factory-installedp arts in
accordance with the following warranty terms
and conditions:
RNew Vehicle Limited Warranty
REmission System Warranty
REmission Performance Warranty
RCalifornia, Connecticut,M aine, Massachu-
setts, New York, Pennsylvania, Rhode Island
and Vermont Emission Control System War-
ranty
RState warranty enforcementl aws (lemon
laws)
Replacement parts and accessories are covered
by the Mercedes-Benz Parts and Accessories
warranties. These are available at any author-
ized Mercedes-Benz Center.
iShould you lose your Service and Warranty
Information booklet, have an authorized
Mercedes-Benz Center arrange for areplace-
ment. The new Service and Warranty Infor-
mation booklet will be posted to you.
Information for customers in Califor-
nia
Under California law you may be entitled to a
replacement of your vehicle or arefund of the
purchase price or lease price, if after areason-
able number of repair attempts Mercedes-Benz
USA, LLC and/or its authorized repair or service
facilities fail to fix one or more substantial
defects or malfunctions in the vehicle that are
covered by its express warranty.
During the period of 18 months from original
delivery of the vehicle or the accumulation of
18,000 miles (approximately 29,000 km) on the
odometer of the vehicle, whichever occurs first,
ar easonable number of repair attempts is pre-
sumed for aretail buyerorl essee if one or more
of the following occurs:
(1) the same substantial defect or malfunction results in acondition that is likely to cause
Service and vehicle operation25
Introduction
Z

death or serious bodily injury if the vehicle is
driven,that defect or malfunction has been
subjec ttorepair two or more times, and you
have directly notified Mercedes-Benz USA,
LLC in writin gofthe need for its repair.
(2) the same substantial defect or malfunction ofaless serious natur ethan category (1)
has been subjec ttorepair four or more
times and you have directly notified
Mercedes-Benz in writin gofthe need for its
repair.
(3) the vehicle is out of servicebyr eason of
repair of the same or differents ubstantial
defectsorm alfunctionsfor ac umulative
total of more than 30 calendar days.
Please send your written notice to:
Customer Assistance Center
Mercedes-Benz USA,L LC
3M ercedes Drive
Montvale, NJ 07645-0350
Maintenance
Always bring the Maintenance Booklet with you when takin gthe vehicle to an authorized
Mercedes-Benz Center .Your customer service
advisor will enter every servicei ntoy our Main-
tenance Booklet on your behalf.
Roadside Assistance
The Mercedes-Benz Roadside Assistance Pro-
gram offerst echnical help in the event of a
breakdown .Calls to the toll-free Roadside Assis-
tanc eHotline are answered by our agent s24
hours aday, 365 days ayear.
1-800-FOR-MERCedes (1-800-367-6372)
(USA)
1-800-387-0100 (Canada)
For additional information ,refer to the
Mercedes-Benz Roadside Assistance Program
brochure( USA)orthe "Roadside Assistance"
section in the Service and Warrant yBooklet
(Canada). You will find both in the vehicle docu-
ment wallet.
Change of address or change of own-
ership
In the event of achang eofa ddress, please send
us the "Notification of Addres sChange" in the
Service and Warrant yBooklet or simply call the
Mercedes-Benz Customer Assistance Center
(USA )atthe hotlin enumber
1-800-FOR-MERCedes (1-800-367-6372) or
Customer Service Center (Canada) at
1-800-387-0100 .This will assist us in contact-
ing you in atimely manner should the need arise.
If you sell your Mercedes,p lease leave all liter-
ature in the vehicle so that it is available to the
nex towner.
If you have purchased aused car, please send us
the "Notification of Used Car Purchase" in the
Service and Warrant yBooklet or simply call the
Mercedes-Benz Customer Assistance Center
(USA )atthe hotlin enumber
1-800-FOR-MERCedes (1-800-367-6372) or
Customer Service (Canada) at 1-800-387-0100.
Vehicle operation outsid ethe USA
and Canada
When you are abroad with your vehicle, observe
the following points:
RService facilities or replacementp arts may
not be readily available.
RLead-free fuel for vehicles with acatalytic
converter may not be available. Leaded fuel
can cause damage to the catalytic converter.
RThe fuel may have aconsiderably lower
octane number. Unsuitable fuel can cause
engin edamage.
Some Mercedes-Benz models are available for
delivery in Europe through our European Deliv-
ery Program. For details, consult an authorized
Mercedes-Benz Center or write to one of the
following addresses.
In the USA
Mercedes-Benz USA,L LC
European Deliver yDepartment
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Mercedes-Benz Canada, Inc.
European Deliver yDepartment
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9
26Service and vehicle operation
Introduction

Diagnostics connection
The diagnosticsconnectio nisonlyi ntende dfor
th ec onnectio nofdiagnostic equipmen tata
qualified specialis tworkshop .
GWARNING
If you connec tequipmen ttoadiagnostic s
connection in th evehicle, it may affec tthe
operation of vehicle systems .Asaresult,the
operatin gsafet yofthe vehicle could be affec -
ted. There is ariskofana ccident.
Only connec tequipmen ttoadiagnostic scon-
nection in th evehicle, whic hisapproved fo r
your vehicle by Mercedes-Benz.
GWARNING
Objects in th edriver's footwell can restric tthe
peda ltra ve loro bstruct adepressed pedal.
The operatin gand road safet yofthe vehicle is
jeopardized. There is ariskofana ccident.
Mak esuret hata ll objects in th evehicle are
stowed correctly, and that they canno tenter
th ed river's footwell. Install th efloormat s
securely and as specifie dinorder to ensur e
sufficien tclearanc efor thep edals. Do no tuse
loose floormat sand do no tplac efloormat son
to pofo neanother.
!If th eengineiss witched of fand equipmen t
on th ediagnostic sconnectio nisused,the
starter battery may discharge.
Connectin gequipmen ttothediagnostic scon-
nection can lead to emission smonitor ingi nfor -
mation bein greset ,for example. Thi smay lead
to th evehicle failin gtomeetthe requirements of
th en exte mission stestd urin gthe main inspec-
tion .
Qualified specialist workshop
An authorized Mercedes-Ben zCente risaq uali-
fie ds pecialis tworkshop .Ithas th eneces sary
specialis tkno wledge ,too ls and qualification sto
correctl ycarry out th eworkr equire donyour
vehicle. Thi sisespecially th ecasef or wor krel-
evant to safety.
Observ ethe note sint heMaintenance Booklet .Always hav
ethe followin gworkc arrie dout at an
authorized Mercedes-Ben zCenter:
Rwor krelevant to safet y
Rserviceand maintenance wor k
Rrepair work
Ralterations, installation wor kand modifica-
tion s
Rworkone lectronic component s
Correct use
If you remov eany warnin gstickers, you or oth-
ers could fail to recogniz ecertai ndangers.
Leave warnin gsticker sinposition .
Observ ethe followin ginformati on when drivin g
your vehicle:
Rth es afet ynotes in this manual
Rtechnical dat afor thev ehicle
Rtraffic rule sand regulation s
Rlaws and safet ystandard spertainin gtomotor
vehicles
Problem swithy ourv ehicle
If you should experience aproblem wit hyour
vehicle, particularly on ethaty ou believe may
affec tits saf eoperation ,weurgey ou to contact
an authorized Mercedes-Ben zCente rimmedi-
ately to hav ethe problem diagnosed and recti -
fied. If th eproblem is no tresolved to your sat -
isfaction ,please discus sthe problem again wit h
an authorized Mercedes-Ben zCente ror,if nec-
essary, contact us at on eofthefollowin g
addresses.
In th eUSA
Customer Assistanc eCente r
Mercedes-Ben zUSA,LLC
3M ercedes Drive
Montvale, NJ 07645-0350
In Canad a
Customer Relation sDepartmen t
Mercedes-Ben zCanada, Inc.
98 Vanderhoo fAvenu e
Toronto ,Ontar io M4 G4C9
Reporting safet ydefect s
USAo nly:
28Operating safety
Introduction

Overview of climatecontrol systems
General notes
Observe the settings recommended on the fol-
lowing pages. The windows could otherwise fog
up.
To preventt he windows from fogging up:
Rswitch off climate control only briefly
Rswitch on air-recirculation mode only briefly
Rswitch on the cooling with air dehumidifica-
tion function
Rswitch on the defrost windshield function
briefly, if required
The air-conditionin gsystem or dual-zon eauto-
matic climate control regulates the temperature and the humidity of the vehicle interior and fil-
ters undesirable substances from the air.
The air-conditionin gsystem or dual-zon eauto-
matic climate control can only be operated
when the engin eisrunning. Optimum operation
is only achieved with the side windows and pan- orama roof with power tilt/sliding panel closed.
If you start the engine using your smartphone,
the last selected climate control setting is reac-
tivated (
Ypage 83).
The residual heat function can only be activated
or deactivated with the ignition switched off
(
Ypage 119). Always keep the ventilation flaps behind the
side trim panel in the cargo compartment clear
(
Ypage 106). Otherwise the vehicle will not be
ventilated correctly.
iVentilate the vehicle for abrief period during
warm weather, e.g. using the convenience
opening feature (
Ypage 83). This will speed
up the cooling process and the desired inte-
rior temperature will be reached more
quickly.
iThe integrated filter filters out most parti-
cles of dust and soot and completely filters
out pollen. It also reduces gaseous pollutants
and odors. Aclogged filter reduces the
amount of air supplied to the vehicle interior.
For this reason, you should alwayso bserve
the interval for replacing the filter, which is
specified in the Maintenance Booklet. As it
depends on environmental conditions ,e.g.
heavy air pollution, the interval may be
shorter than stated in the Maintenance Book-
let.
iIt is possible that under certain circumstan-
ces the residual heat function may be activa-
ted automatically an hour after the SmartKey
has been removed in order to dry the auto-
mat

ic climate control. The vehicle is then ven-
tilated for 30 minutes.
110Overview of climatec ontrol systems
Climatecontrol