2018 MERCEDES-BENZ CLA Owners Manual

Introduction The printe dO perator's Manual provide si nfor-
mation about th es af eo peration of your vehicle.
The Digital Operator's Manual provide sc om pre-
hensiv ea nd specifically adapted information on
your vehicle's equipmen ta nd multimedia sys-
tem. You can call up th eD ig ital Operator's Man -
ual via th em ultimedia system.
i You will no ti ncur any cost sw hen calling up
th eD ig ital Operator's Manual. The Digital
Operator's Manual works without connecting
to th eI nternet.
Ther ea re three ways to access th et op ic soft he
Digital Operator's Manual: R
Visua ls earch
The visual search allows you to explor ey our
vehicl e" virtually". Starting from either th e
vehicl ee xter io rv ie wori nterio rv iew, you can
access man yoft he differen tt op ic sc ov ered
by th eD ig ital Operator's Manual. To access
th ev ehicl ei nterio rs ection ,s elect th e" Vehi-
cle interior" view. R
Keywor ds earch
The keyword search allows you to search for a
keyword by enterin gc ha racters.R
Content s
You can select individual section sint he con-
tents.
i The Digital Operator's Manual is deactiva-
te df or safet yr eason sw hile driving .
Operation
Calling up th eD igital Operator's Man-
ual X
Press th e

Protecting the environment
General notes
H Environmental note
Daimler's declared policy is one of compre-
hensive environmental protection.
The objectives are for the natural resources
that form the basis of our existence on this
planet to be used sparingly and in am anner
that takes the requirements of both nature
and humanity into account.
You too can help to protect the environment
by operating your vehicle in an environmen-
tally responsible manner.
Fuel consumption and the rate of engine,
transmission, brake and tire wear are affected
by these factors: R
operating condition sofy our vehicleR
your personal driving style
You can influence both factors. You should
bear the following in mind:
Operating conditions: R
avoid short trips as these increase fuel con-
sumption. R
always make sure that the tire pressures
are correct. R
do not carry any unnecessary weight. R
remove roof racks once you no longer need
them. R
ar egularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals. R
always have service work carried out at a
qualified specialist workshop.
Personal driving style: R
do not depress the accelerator pedal when
startin gt he engine.R
do not warm up the engine when the vehicle
is stationary. R
drive carefully and maintain as afe distance
from the vehicle in front. R
avoid frequent, sudden acceleration and
braking. R
change gear in good time and use each gear
only up to

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

Operating safety
Important safet yn otes
G WARNING
If you do not have the prescribed service/
maintenanc ew ork or any required repairs
carried out, this can result in malfunctions or
system failures. There is ar isk of an accident.
Always have the prescribed service/mainte-
nanc ew ork as well as any required repairs
carried out at aq ualified specialist workshop.
G WARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system. There is ar isk
of fire.
When driving off road or on unpaved roads,
chec kt he vehicle's underside regularly. In
particular, remove parts of plants or other
flammable materials which have become
trapped. In the case of damage, contact a
qualified specialist workshop.
G WARNING
Modifications to electronic components, their
software as well as wiring can impair their
function and/or the function of other net-
worked components. In particular, systems
relevant to safety could also be affected. As a
result, these may no longer function as inten-
ded and/or jeopardiz et he operatin gs afety of
the vehicle. There is an increased risk of an
acciden ta nd injury.
Never tamper with the wiring as well as elec-
tronic component sort heir software. You
should have all work to electrical and elec-
tronic equipment carried out at aq ualified
specialist workshop. ! There is ar isk of damage to the vehicle if: R
the vehicle becomes stuck ,e .g. on ah igh
curb or an unpaved road R
you drive too fast over an obstacle, e.g. a
curb, as peed bump or ap othole in the roadR
ah eavy objec ts trikes the underbody or
parts of the chassis
In situation sl ike this, the body, the under-
body, chassis parts, wheels or tires could be
damaged without the damage being visible.
Components damaged in this way can unex-
pectedly fail or, in the case of an accident, no
longer withstand the loads they are designed
to.
If the underbody paneling is damaged, com-
bustible materials such as leaves, grass or
twigs can gather between the underbody and
the underbody paneling. If these materials
come in contact with hot parts of the exhaust
system, they can catc hf ire.
In such situations, have the vehicle checked
and repaired immediately at aq ualified spe-
cialist workshop. If on continuin gy our jour-
ney you notice that driving safety is impaired,
pull over and stop the vehicle immediately,
paying attention to road and traffic condi-
tions. In such cases, consult aq ualified spe-
cialist workshop.
Declarations of conformity USA: "The wireless devices of this vehicle com-
ply with Part 15 of the FCC Rules. Operation is
subject to the two following two conditions :1 )
These devices may not cause harmful interfer-
ence, and 2) These devices must accept any
interference received, including interference
that may cause undesired operation .C hanges
or modifications not expressly approved by the
party responsible for complianc ec ould void the
user’s authorit ytoo perate the equipment."
Canada: "The wireless devices of this vehicle
comply with Industry Canada license-exempt
RSS standard(s). Operation is subject to the fol-
lowing two conditions :( 1) These devices may
not cause interference, and (2) These devices
must accept any interference, including inter-
ference that may cause undesired operation of
the device."Operating safety 27
Introduction Z

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

The following text is reproduced as required of
all manufacturers under Title 49, Code of U.S.
Federal Regulations, Part 575 pursuant to the
National Traffic and Motor Vehicle Safety Act of
1966.
If you believe that your vehicle has ad efect
which could cause ac rash or could cause injury
or death, you should immediately inform the
National Highway Traffic Safety Administration
(NHTSA )ina ddition to notifying Mercedes-Benz
USA ,L LC.
If NHTSA receives similar complaints ,itm ay
open an investigation, and if it finds that as afety
defect exists in ag roup of vehicles, it may order
ar ecall and remedy campaign. However, NHTSA
cannot become involved in individual problems
between you, your dealer, or Mercedes-Benz
USA ,L LC.
To contact NHTSA ,y ou may call the Vehicle
Safety Hotlin et oll-free at 1-888-327-4236
(TTY: 1-800-424-9153 ); go to http://
www.safercar.gov ;orw rite to: Administrator,
NHTSA ,4 00 Sevent hS treet, SW., Washington,
DC 20590.
You can also obtain other information about
motor vehicle safety from
http://www.safercar.gov
Limited Warranty
! Follow the instructions in this manual about
the proper operation of your vehicle as well as
about possible vehicle damage. Damage to
your vehicle that arises from culpable contra-
ventions against these instructions is not cov-
ered either by the Mercedes-Benz Limited
Warranty or by the New or Used-Vehicle War-
ranty.
QR codes for the rescue card
The QR codes are secured in the fuel filler flap
and on the opposite side on the B-pillar. In the
event of an accident ,r escue services can use
the QR code to quickly find the appropriate res-
cue card for your vehicle. The current rescue
card contains the most important information
about your vehicle in ac ompact form, e.g. the
routing of the electric cables.
You can find more information under
www.mercedes-benz.de/qr-code. Data stored in the vehicle
Data storage Aw ide range of electronic components in your
vehicle contain data memories.
These data memories temporarily or perma-
nently store technical information about: R
the vehicle's operating state R
incidents R
malfunctions
In general, this technical information docu-
ment st he state of ac omponent, am odule, a
system or the surroundings.
These include, for example: R
operating conditions of system components,
e.g. fluid levels R
the vehicle's status messages and those of its
individual components, e.g. number of wheel
revolutions/speed, deceleration in move-
ment ,l ateral acceleration, accelerator pedal
position R
malfunction sa nd defects in important system
components, e.g. lights, brakes R
vehicle reaction sa nd operating conditions in
special driving situations, e.g. air bag deploy-
ment ,i ntervention of stability control sys-
tems R
ambient conditions, e.g. outside temperature
This data is of an exclusively technical nature
and can be used to: R
assist in recognizing and rectifying malfunc-
tions and defects R
analyze vehicle functions, e.g. after an acci-
dent R
optimize vehicle functions
The data cannot be used to trace the vehicle's
movements.
When your vehicle is serviced, technical infor-
mation can be read from the event data memory
and malfunction data memory.
Services include, for example: R
repair services R
service processes R
warranties R
quality assurance
The vehicle is read out by employees of the ser-
vice network (including the manufacturer) using
special diagnostic testers. More detailed infor-
mation is obtained from it, if required.Data stored in the vehicle 29
Introduction Z

After am al functio nh as been rectified, the infor-
matio ni sd elete df rom the malfunctio nm emory
or is continuall yo verwritten.
Whe no pe rating the vehicle, situations ar ec on-
ceivabl einw hi ch thi st echnica ld at a, in connec-
tio nw it ho the ri nformatio n( if necessary ,u nder
consultatio nw it hana ut horize de xpert) ,c ould
be traced to ap er son.
Examples include: R
accident reports R
damage to the vehicle R
witness statements
Further additional functions tha th av eb ee nc on-
tractuall ya gr ee du po nw it ht he custome ra llow
certain vehicl ed at atobec onveye dbyt he vehi-
cle as well .T he additional functions include, for
example, vehicl el oc ation in cas eofane mer-
gency.
COMAND/mbrace If the vehicl eise quippe dw it hC OM AND or
mbrace ,a ddit ional data abou tt he vehicle's
operation, the us eoft he vehicl einc ertain sit-
uations, and the location of the vehicl em ay be
compiled throug hC OM AND or the mbrace sys-
tem.
For additional informatio np leas er efer to the
COMAND Use rM an ua lort he Digita lO perator's
Manua la nd/or the mbrace Terms and Condi-
tions.
Even td ata recordersThi sv ehicl eise quippe dw it hane vent data
recorde r( EDR). Thi sv ehicl eise quippe dw it ha n
event data recorde r( EDR). The main purpose of
an EDR is to record, in certain crash or near
crash-like situations, such as an ai rb ag deploy-
ment or hitting ar oa do bs tacle ,d at at ha tw il l
assist in understanding how av ehicle's systems
performed .T he EDR is designe dtor ecord data
relate dtov ehicl ed yn amics and safety systems
for as hort perio doft ime ,t ypicall y30s econds
or less.
The EDR in thi sv ehicl eisd esig ne dtor ecord
such data as: R
How various system siny ou rv ehicl ew er e
operating R
Whether or not the driver and passenger
safety belts were buckled/fastened R
How far (i fata ll )t he driver wa sd ep ressing the
accelerator and/or brake peda la ndR
How fas tt he vehicl ew as traveling.
These data can hel pp rovid eab et ter under-
standing of the circumstances in which crashes
and injurie so ccur. NOTE: EDR data ar er ecorded
by your vehicl eo nl yifan on-trivia lc rash situa-
tio no ccurs; no data ar er ecorde dbyt he EDR
under normal driving conditions and no personal
data (e.g. name, gender, ag ea nd crash location)
ar er ecorded. However, othe rp ar ti es, such as
l a we nforcement could combine the EDR data
with the typ eofp er sonally identifying data rou-
tinely acquired during ac rash investigation.
Acces stot he vehicl ea nd/or the EDR is needed
to rea dd at at ha ti sr ecorde dbyanE DR, and
specia le quipment is required .Ina ddit io ntot he
vehicl em an ufacturer ,o the rp ar tie st ha th av e
the specia le quipment ,s uc hasl aw enforce-
ment, can rea dt he informatio nb ya ccessing the
vehicl eort he EDR.
EDR data ma ybeu se dinc ivi la nd crimina lm at -
ters as at ool in accident reconstruction, acci-
dent claims and vehicl es af ety .S ince the Crash
Data Retrieva lC DR tool tha ti su se dtoe xtract
data from the EDR is commercially available,
Mercedes-Benz USA, LLC ("MBUSA" )e xpressly
disclaims any and al ll iabili ty arising from the
extractio noft hi si nformatio nb yu nauthorized
Mercedes-Benz personnel.
MBUSA will not share EDR data with others
withou tt he consent of the vehicl eo wn ers or, if
the vehicl eisl eased, withou tt he consent of the
lessee. Exceptions to thi sr epresentation
includ er esponses to subpoenas by la we nforce-
ment; by federal, state or local government; in
connectio nw it hora risin go ut of litigation involv-
ing MBUSA or its subsidiarie sa nd affilia tes; o r,
a s required by law.
Warning :T he EDR is ac omponent of the
Restraint System Module. Tampering with, alter-
ing ,m odifying or removing the EDR component
ma yr esul tina malfunctio noft he Restraint Sys-
tem Modul ea nd othe rs ys tems.
State laws or regulations regarding EDRs that
conflict with federa lr egulation ar ep re-empted.
Thi sm eans tha tint he event of such conflict, the
federa lr egulation governs .AsofF ebruar y2 013,
13 states have enacted laws relating to EDRs.30
Data stored in the vehicle
Introduction