2018 MERCEDES-BENZ CLA 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 you ro wn safety and a
longer vehicl el ife ,f ollow the instructions and
warning notices in this Operator's Manual.
Ignoring them coul dr esult in damage to the
vehicl eorp 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
vehicl em ay vary depending on:R
Model R
Order R
Country specification R
Availability
Mercedes-Benz therefore reserve st he right to
introduce changes in the following areas: R
Design R
Equipment R
Technica lf eatures
The equipment in you rv ehicl em ay therefore
diffe rf rom that show nint he descriptions and
illustrations.
The following are integra lc omponents of the
vehicle: R
Printed Operator's Manual R
Maintenance Booklet R
Equipment-dependent supplements
Keep these documents in the vehicl eata ll
times. If you sell the vehicle, alway sp as sa ll
documents on to the new owner.
You can als ou se the Mercedes-Benz Guides
App:
Your Operator's Manual:
Digital form inside the vehicle
The Digita lO perator's Manual provides
comprehensive and specifically adapted
information on you rv ehicle's equipment
and multimedi as ystem. It contains infor-
mative animations, individua ll anguage
settings and an intuitive search function.
Booklet inside the vehicle
In addition to this manua la nd the afore-
mentioned digital media, you als oh ave the
option to obtai nac omprehensive printed
versio noft he Supplement for you rm ulti- medi as ystem from you ra ut horized
Mercedes-Benz Center.
Digital form via the Internet
The Operator's Manual on the Internet pro-
vide se asy access to all information
regarding you rv ehicl ea nd multimedi as ys-
tem. It als op rovides helpful animations,
interesting background information and a
wid ea rra yofs earch options.
Digital form as an App
Using the Mercedes-Benz Guide sA pp, you
can view all the information on you rv ehicle
and multimedi as ystem via mobile Internet
or download it independently of network
access. Availabl ef or smartphones or tab-
lets.
You can als ou se the Mercedes-Benz Guides
App:
Please note that the Mercedes-Benz Guide sA pp
may not yet be available in you rc ountry.
Mercedes-Benz USA, LLC
Mercedes-Benz Canada ,I nc.
AD aimler Company
1175842704
É1175842704eËÍ

Searching for am obil ep hone
(device manager ). .......................... 234
see also Digital Operator's Man-
ua l. ................................................. 229
Telephony ...................................... 233
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Displa ym essage ............................ 197
Note s. ............................................ 318
Brake forc ed istribution
see EBD (electroni cb rake force
distribution)
Brake lamp
Replacing bulb s. ............................ 106
Brake lamps
Displa ym essage ............................ 202
Brakes
ABS .................................................. 61
BAS .................................................. 61
Brake fluid (notes) ......................... 318
Braking assistance appropriate to
the situation ..................................... 63
Displa ym essage ............................ 192
EBD .................................................. 67
Hil ls tart assis t. .............................. 125
HOLD function ............................... 157
Important safety notes .................. 146
Maintenance .................................. 147
Parking brake ................................ 142
Riding tip s. ..................................... 146
Warning lamp ................................. 219
Brakin ga ssistanc ea ppropriate to
the situation
Function/note s. ............................... 63
Breakdown
Where will If ind...? ........................ 269
see Fla tt ire
see Tow-starting
see Towing away
Button sont he steering wheel ......... 177
C
California
Important notice for retail cus-
tomers and lessees .......................... 25 Calling up am alfunction
see Displa ym essages
Car
see Vehicle
Care
Ca rw as h. ....................................... 262
Carpets .......................................... 268
Displa y. .......................................... 266
Exhaus tp ip e. ................................. 266
Exterior lights ................................ 265
Gear or selector lever .................... 267
Interior ........................................... 266
Matte finish ................................... 264
Note s. ............................................ 262
Paint .............................................. 263
Plastic trim .................................... 266
Power washe r. ............................... 263
Rear vie wc amera .......................... 265
Roof lining ...................................... 268
Sea tb el t. ....................................... 267
Sea tc ove r. .................................... 267
Sensors ......................................... 265
Steering whee l. .............................. 267
Tri mp ie ce s. ................................... 267
Washing by hand ........................... 262
Wheel s. .......................................... 264
Window s. ....................................... 264
Wipe rb lade s. ................................. 265
Woode nt rim .................................. 267
Carg oc om partmen te nl argement ... 240
Carg ot ie dow nr ings ......................... 241
CD
see also Digital Operator's Man-
ua l. ................................................. 229
CD player (on-board computer) ........ 183
Cente rc on sole
Lower section .................................. 36
Upper section .................................. 35
Central locking
Automati cl oc king (on-board com-
puter) ............................................. 187
Locking/unlocking (SmartKey ). ....... 70
Chang eofa ddress .............................. 26
Chang eofo wner ship .......................... 26
Changin gaw heel
Wh eels an dt ire s. ........................... 3086
Index

Lowering ........................................ 311
Maintenance .................................... 26
Parking for al ong perio d. ............... 143
Pulling awa y. .................................. 125
Raising ........................................... 309
Reporting problems ......................... 28
Securing from rolling away ............ 309
Transporting .................................. 283
Unlocking (i nane mergency) ........... 77
Unlocking (SmartKey ). ..................... 70
Vehicl ed at a. .................................. 320
Vehicl ed ata
Roof load (maximum) ..................... 320
Trunk load (maximum) ................... 320
Vehicl ed imensions ........................... 320
Vehicl ee mergenc yl oc king ................ 77
Vehicl ei dentificatio nn umber
see VIN
Vehicl ei dentificatio np late .............. 314
Vehicl et oo lk it .................................. 270
Ventilation
Setting the vents ........................... 120
Video
Operating the DVD ......................... 183
see also Digital Operator's Man-
ua l. ................................................. 229
VIN
Sea t. .............................................. 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 lt ank ........................................ 224
Overview .......................................... 33
PASSENGER AIR BAG ...................... 41
Reserve fue l. .................................. 224
Restraint system ............................ 224
Sea tb el t. ....................................... 218
SPOR Th an dling mod e. .................. 222 Tire pressure monitor .................... 228
Warning triangle ................................ 270
Warranty .............................................. 25
Washer fluid
Displa ym essage ............................ 216
Weather display (COMAND)
see also Digital Operator's Man-
ua l. ................................................. 229
Wheel and tire combinations
Tires ............................................... 312
Wheel bolt tightenin gt orque ........... 311
Wheel chock ...................................... 309
Wheels
Changing aw heel .......................... 307
Checking ........................................ 287
Cleaning ......................................... 264
Important safety notes .................. 287
Information on driving .................... 287
Interchanging/changing ................ 307
Mounting an ew whee l. .................. 310
Removing aw heel .......................... 310
Storing ........................................... 308
Tightening torque ........................... 311
Wheel size/tire size ....................... 312
Wheel sa nd tires
Changing aw heel .......................... 308
Window curtai na ir bag
Displa ym essage ............................ 199
Operation ......................................... 47
Windows
see Sid ew in dows
Windshield
Defrosting ...................................... 117
Windshiel dw asher system
Adding washe rf luid ....................... 260
Important safety notes .................. 319
Windshiel dw ip ers
Displa ym essage ............................ 216
Problem (malfunction) ................... 109
Replacing the wipe rb lade s. ........... 108
Switching on/of f. .......................... 107
Winter driving
Slippery roa ds ur faces ................... 148
Snow chains .................................. 290
Winter operation
Genera ln otes ................................ 289
Wi n
ter tires
M+S tire s. ...................................... 289Index 21

systems, e.g. the brake system. Use only genu-
ine Mercedes-Benz parts or parts of equa lq ual-
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 ( Y
page 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 vehicl eo 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-installe dp arts in
accordance with the following warranty terms
and conditions: R
New Vehicle Limited Warranty R
Emission System Warranty R
Emission Performance Warranty R
California, Connecticut ,M aine, Massachu-
setts, New York, Pennsylvania, Rhode Island
and Vermont Emission Control System War-
ranty R
State warranty enforcemen tl 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.
i Should you lose your Service and Warranty
Information booklet, have an authorized
Mercedes-Benz Center arrange for ar eplace-
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 ar efund of the
purchase price or lease price, if after ar eason-
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 ar etail buye rorl essee if one or more
of the following occurs:
(1) the same substantial defect or malfunction
results in ac ondition that is likely to causeService and vehicle operation 25
Introduction Z

death or serious bodily injury if the vehicle is
driven ,t hat defect or malfunction has been
subjec ttor epair two or more times, and you
have directly notified Mercedes-Benz USA,
LLC in writin goft he need for its repair.
(2) the same substantial defect or malfunction
of al ess serious natur et han category (1)
has been subjec ttor epair four or more
times and you have directly notified
Mercedes-Benz in writin goft he need for its
repair.
(3) the vehicle is out of servic ebyr eason of
repair of the same or differen ts ubstantial
defect sorm alfunction sf or 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 gt he vehicle to an authorized
Mercedes-Benz Center .Y our customer service
advisor will enter every servic ei nt oy our Main-
tenance Booklet on your behalf.
Roadside Assistance The Mercedes-Benz Roadside Assistance Pro-
gram offer st echnical help in the event of a
breakdown .C alls to the toll-free Roadside Assis-
tanc eH otline are answered by our agent s2 4
hours ad ay, 365 days ay ear.
1-800-FOR-MERCedes (1-800-367-6372)
(USA)
1-800-387-0100 (Canada)
For additional information ,r efer to the
Mercedes-Benz Roadside Assistance Program
brochur e( USA )ort he "Roadside Assistance"
section in the Service and Warrant yB ooklet
(Canada). You will find both in the vehicle docu-
ment wallet. Change of address or change of own-
ership In the event of ac hang eofa ddress, please send
us the "Notification of Addres sC hange" in the
Service and Warrant yB ooklet or simply call the
Mercedes-Benz Customer Assistance Center
(USA )att he hotlin en umber
1-800-FOR-MERCedes (1-800-367-6372) or
Customer Service Center (Canada) at
1-800-387-0100 .T his will assist us in contact-
ing you in at imely 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 to wner.
If you have purchased au sed car, please send us
the "Notification of Used Car Purchase" in the
Service and Warrant yB ooklet or simply call the
Mercedes-Benz Customer Assistance Center
(USA )att he hotlin en umber
1-800-FOR-MERCedes (1-800-367-6372) or
Customer Service (Canada) at 1-800-387-0100.
Vehicle operation outsid et he USA
and Canada When you are abroad with your vehicle, observe
the following points: R
Service facilities or replacemen tp arts may
not be readily available. R
Lead-free fuel for vehicles with ac atalytic
converter may not be available. Leaded fuel
can cause damage to the catalytic converter. R
The fuel may have ac onsiderably lower
octane number. Unsuitable fuel can cause
engin ed amage.
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 yD epartment
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Mercedes-Benz Canada, Inc.
European Deliver yD epartment
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C926
Service and vehicle operation
Introduction

Diagnostics connection The diagnostic sc onnectio niso nl yi ntende df or
th ec onnectio nofd iagnostic equipmen tata
qualified specialis tw orkshop .
G WARNING
If you connec te quipmen ttoad iagnostic s
connection in th ev ehicle, it may affec tt he
operation of vehicle systems .Asar esult ,t he
operatin gs afet yo ft he vehicle could be affec -
ted. There is ar is kofana ccident.
Only connec te quipmen ttoad iagnostic sc on -
nection in th ev ehicle, whic hisa pproved fo r
your vehicle by Mercedes-Benz.
G WARNING
Objects in th ed river's footwell can restric tt he
peda lt ra ve loro bstruct ad epressed pedal.
The operatin ga nd road safet yo ft he vehicle is
jeopardized. There is ar is kofana ccident.
Mak es ur et ha ta ll objects in th ev ehicle are
stowed correctly, and that they canno te nter
th ed river's footwell. Install th ef loormat s
securely and as specifie dino rd er to ensur e
sufficien tc le aranc ef or th ep edals. Do no tu se
loose floormat sa nd do no tp lac ef loormat so n
to pofo ne another.
! If th ee ng in eiss witched of fa nd equipmen t
on th ed iagnostic sc onnectio nisu sed ,t he
starter battery may discharge.
Connectin ge quipmen ttot he diagnostic sc on -
nection can lead to emission sm onitor in gi nfor -
mation bein gr eset ,f or example. Thi sm ay lead
to th ev ehicle failin gtom ee tt he requirements of
th en ex te mission st es td urin gt he main inspec-
tion .
Qualified specialist workshop An authorized Mercedes-Ben zC ente risaq uali-
fie ds pecialis tw orkshop .Ith as th en eces sary
specialis tk no wledge ,t oo ls and qualification st o
correctl yc arry out th ew or kr equire dony our
vehicle. Thi sise specially th ec as ef or wor kr el -
evant to safety.
Observ et he note sint he Maintenance Booklet . Always hav et he followin gw or kc arrie do ut at an
authorized Mercedes-Ben zC enter:R
wor kr elevant to safet yR
servic ea nd maintenance wor kR
repair wor k R
alterations, installation wor ka nd modifica-
tion s R
wor kone lectronic component s
Correct us eIf you remov ea ny warnin gs tickers, you or oth-
ers could fail to recogniz ec ertai nd angers.
Leave warnin gs ticker sinp osition .
Observ et he followin gi nformati on when drivin g
your vehicle: R
th es afet yn otes in this manual R
technical dat af or th ev ehicleR
traffic rule sa nd regulation sR
laws and safet ys ta ndard sp ertainin gtom otor
vehicles
Problem sw it hy ou rv ehicleIf you should experience ap roblem wit hy our
vehicle, particularly on et ha ty ou believe may
affec ti ts saf eo peration ,weu rg ey ou to contact
an authorized Mercedes-Ben zC ente ri mmedi-
ately to hav et he problem diagnosed and recti -
fied. If th ep roblem is no tr esolved to your sat -
isfaction ,p lease discus st he problem again wit h
an authorized Mercedes-Ben zC ente ro r, if nec-
essary, contact us at on eoft he followin g
addresses.
In th eU SA
Customer Assistanc eC ente r
Mercedes-Ben zU SA ,L LC
3M ercedes Drive
Montvale, NJ 07645-0350
In Canad a
Customer Relation sD ep artmen t
Mercedes-Ben zC anada, Inc.
98 Vanderhoo fA venu e
Toronto ,O ntar io M4 G4 C9
Reporting safet yd efect s
US Ao nl y:28
Operating safety
Introduction

Overview of climat ec ontrol systems
General notes Observe the settings recommended on the fol-
lowing pages. The windows could otherwise fog
up.
To preven tt he windows from fogging up:R
switch off climate control only briefly R
switch on air-recirculation mode only briefly R
switch on the cooling with air dehumidifica-
tion function R
switch on the defrost windshield function
briefly, if required
The air-conditionin gs ystem or dual-zon ea uto-
matic climate control regulates the temperature
and the humidity of the vehicle interior and fil-
ters undesirable substances from the air.
The air-conditionin gs ystem or dual-zon ea uto-
matic climate control can only be operated
when the engin eisr unning. 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 ( Y
page 83).
The residual heat function can only be activated
or deactivated with the ignition switched off
( Y
page 119). Always keep the ventilation flaps behind the
side trim panel in the cargo compartment clear
( Y
page 106). Otherwise the vehicle will not be
ventilated correctly.
i Ventilate the vehicle for ab rief period during
warm weather, e.g. using the convenience
opening feature ( Y
page 83). This will speed
up the cooling process and the desired inte-
rior temperature will be reached more
quickly.
i The integrated filter filters out most parti-
cles of dust and soot and completely filters
out pollen. It also reduces gaseous pollutants
and odors. Ac logged filter reduces the
amount of air supplied to the vehicle interior.
For this reason, you should alway so 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.
i It 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.110
Overview of climat ec ontrol systems
Climat ec ontrol

vice or maintenance work. There is ar isk of
injury.
Always secure the engine against uninten-
tional starting before carrying out mainte-
nance or repair work.
Make sure that the engine cannot be started via
you rs martphone before carrying out mainte-
nance or repairs. You can prevent an engine
start via you rs martphone, for example, if you:R
switch on the hazard warning lamps R
do not lock the doors R
open the hood
Pulling away
General notes
G WARNING
If the engine spee disa bove the idling speed
and you engage transmission position D or R ,
the vehicl ec ould pul la wa ys uddenly .T here is
ar isk of an accident.
When engaging transmission position D or R ,
alway sf irmly depress the brake peda la nd do
not simultaneously accelerate.
Depress the accelerator carefully when pulling
away.
The vehicl el ocks centrally once you have pulled
away. The locking knobs in the doors drop down.
You can open the doors from the insid eata ny
time.
You can als od eactivate the automatic locking
feature ( Y
pag e1 87).
It is possible to shift the transmission from posi-
tion ] to the desired position only if you
depress the brake pedal. Only then can the
parking lock be deactivated.
All vehicles (except Mercedes-AMG vehi-
cles): if you do not depress the brake pedal, the
DIRECT SELECT lever can still be moved but the
parking lock remains engaged.
Mercedes-AMG vehicles: if you do not depress
the brake pedal, the selector lever can still be
moved but the parking lock remains engaged.
At transmission flui dt emperatures below