2018 MERCEDES-BENZ CLA COUPE ECU

Downloading destinations
(COMAND) .....................................248
Downloading route s....................... 251
Emergency call .............................. 246
General notes ................................ 245
Geo fencing ................................... 251
Locating astolenv ehicle ...............2 50
MB info call button ........................ 247
Remote fault diagnosis. ................. 250
Remote vehicl eloc king .................. 250
Roadsid eassistance button ........... 247
Search &Send ............................... 249
Self-test ......................................... 245
Speed alert .................................... 251
System .......................................... 245
Triggering the vehicl ealarm ........... 252
Vehicl eremote unlocking .............. 249
Mechanical key
Function/note s................................ 72
Inserting .......................................... 72
Locking vehicl e................................ 77
Removing ......................................... 72
Unlocking the driver'sd oor.............. 77
Memory card (audio) ......................... 183
Memory function ................................. 98
Messagem emory (on-board com-
puter) .................................................. 191
Messages
see Displa ymessages
Mirro rturn signal
Cleaning ......................................... 265
Mirrors
see Exterior mirrors
see Rear-vie wmirror
see Vanity mirror (i nthe sunv isor)
Mobil ephone
Connecting (Bluetooth
®inter-
face ).............................................. 233
Connecting (device manager )........ 234
Frequencie s................................... 313
Installation ..................................... 313
Menu (on-board computer) ............ 183
Transmission output( maximum) .... 313
Modifying the programming
(SmartKey) ........................................... 72
MOExtendedt ires.............................. 271 Mounting wheels
Lowering the vehicl e...................... 311
Mounting anew wheel. .................. 310
Preparing the vehicl e..................... 308
Raising the vehicl e......................... 309
Removing awheel .......................... 310
Securing the vehicl eagains troll-
ing away ........................................ 309
MP3
Operation ....................................... 183
se

e also Digital Operator's Man-
ua l.................................................. 229
Multifunctio ndisplay
Function/note s............................. 179
Permanent display ......................... 187
Multifunctio nsteering wheel
Operating the on-board compute r..1 77
Overview .......................................... 34
Multimedia system
Switching on and off ......................2 30
Music files
see also Digita lOperator's Man-
ua l..................................................2 29
N
Navigation
Entering adestination .................... 231
Menu (on-board computer) ............ 181
see also Digita lOperator's Man-
ua l..................................................2 29
Notes on breaking-inan ew vehi-
cle ....................................................... 121
O
Occupant Classification System
(OCS)
Conditions ....................................... 48
Faults ............................................... 51
Operation ......................................... 48
System self-test ............................... 50
Occupant safety
Air bag s...........................................4 5
Automatic measures after an acci-
dent ................................................. 54
Bel twarning ..................................... 44
Childre ninthe vehicl e..................... 54
Important safety notes. ................... 40
Index13

Remote controlGarag edooro pener ....................... 252
Programming (garag edoor
opener) .......................................... 252
Replacing bulbs
Brake lamp .................................... 106
High-beam headlamp s................... 106
Important safety notes .................. 104
Installing/removing the cover
(front wheela rch).......................... 105
Low-bea mheadlamp s.................... 105
Overview of bulb types .................. 104
Rear fog lamp ................................ 106
Turn signal s(front) ......................... 106
Turn signal s(rear) .......................... 106
Reporting safety defects .................... 28
Rescue card ......................................... 29
Reserve (fuel tank)
see Fuel
Reserve fuel
Displa ymessage ............................ 206
Warning lamp ................................. 224
see Fuel
Residual hea t(clim ate control) ........ 119
Restrain tsystem
Displa ymessage ............................ 198
Introduction ..................................... 40
Warning lamp ................................. 224
Warning lamp (function) ................... 41
Revers egear(selecto rlever )........... 132
Reversin gfeature
Roller sunblind ................................. 87
Sid ew indow s................................... 82
Roadside Assistance (breakdown) .... 26
Rolle rsunblind
Panorama roofw ithp ower tilt/
sliding panel ..................................... 87
Roo fcarrier ........................................ 241
Roo flinin gand carpets (cleaning
guidelines) ......................................... 268
Roo floa d( maximum) ........................ 320
Route guidance
see also Digital Operator's Man-
ual.................................................. 229S
Safety
Childre ninthe vehicl e..................... 54
see Occupant safety
Safety system
see Driving safety systems
SD card
Inserting ........................................ 235
Inserting/removing ........................ 235
Removing ....................................... 235
SD memory card
see also Digital Operator's Man-
ual.................................................. 229
Search &Send
see also Digital Operator's Man-
ua l.................................................. 229
Seat
Correct driver'ss eatposition ........... 90
Seat belts
Adjusting the height ......................... 44
Cleaning ......................................... 267
Correct usag e.................................. 43
Fastening ......................................... 44
Important safety guideline s............. 42
Introduction ..................................... 41
Releasing ......................................... 44
Warning lamp ................................. 218
Warning lamp (function) ................... 44
Seats
Adjusting (electrically) ..................... 92
Adjusting (manually) ........................ 91
Adjusting (Performance Seat) .......... 94
Adjusting the 4-wa ylum bars up-
por t.................................................. 93
Adjusting the headr estraint ............ 92
Cleaning the cover. ........................ 267
Folding the backrest( rear com-
partment) forwards/back .............. 240
Important safety notes .................... 90
Seath eating problem ...................... 95
Storing settings (memory func-
tion) ................................................. 99
Switching seath eating on/off......... 94
Securing cargo .................................. 241
Selecto rlever
Cleaning ......................................... 267
Sensors (cleaning instructions) ....... 265
16Index

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

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

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 hasadefect
which could cause acrash 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 ,itmay
open an investigation, and if it finds that asafety
defect exists in agroup 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 etoll-free at 1-888-327-4236
(TTY: 1-800-424-9153); go tohttp://
www.safercar.gov;orw rite to: Administrator,
NHTSA,4 00 SeventhS 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 acompact 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:
Rthe vehicle's operating state
Rincidents
Rmalfunctions
In general, this technical information docu-
mentst he state of acomponent, amodule, a
system or the surroundings.
These include, for example:
Roperating conditions of system components,
e.g. fluid levels
Rthe 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
Rmalfunction sand defects in important system
components, e.g. lights, brakes
Rvehicle reactionsa nd operating conditions in
special driving situations, e.g. air bag deploy-
ment,i ntervention of stability control sys-
tems
Rambient conditions, e.g. outside temperature
This data is of an exclusively technical nature
and can be used to:
Rassist in recognizing and rectifying malfunc-
tions and defects
Ranalyze vehicle functions, e.g. after an acci-
dent
Roptimize 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:
Rrepair services
Rservice processes
Rwarranties
Rquality 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 vehicle29
Introduction
Z

Panic alarm
XTo activate:press and hold the
! button :for approx. one second.
Av isual and audible alarm is triggered if the
alarm system is armed.
XTo deactivate: press!button :again.
or
XInsert the SmartKey into the ignition lock.
or, in vehicles with KEYLESS-GO start-function
or KEYLESS ‑GO
XPress the Start/Stop button.
The SmartKey must be in the vehicle.
Occupant safety
Introduction to the restraint system
The restraint system can reduce the risk of vehi-
cle occupants coming into contact with parts of
the vehicle's interior in the event of an accident.
The restraint system can also reduce the forces to which vehicle occupants are subjected during
an accident.
The restraint system comprises:
RSeat belt system
RAir bags
RChild restraint system
RChild seat securing systems
The components of the restraint system work in
conjunction with each other. They can only
deploy their protective function if, at all times, all
vehicle occupants:
Rhave fastened their seat belts correctly
(Ypage 43)
Rhave the seat and head restraint adjusted
properly (Ypage 90) As the driver, you also have to make sure that
the steering wheel is adjusted correctly.
Observe the information relating to the correct
driver's seat position (
Ypage 90).
You also have to make sure that an air bag can
inflate properly if deployed(
Ypage 45).
An air bag supplements acorrectly worn seat
belt. As an additional safety device, the air bag
increases the level of protection for vehicle
occupants in the event of an accident. For exam-
ple, if, in the event of an accident, the protection
offered by the seat belt is sufficient, the air bags
are not deployed. When an accident occurs, only
the air bags that increase protection in that par- ticular accident situation are deployed. How-
ever, seat belts and air bags generally do not
protect against object spenetrating the vehicle
from the outside.
Information on restraint system operation can
be found under "Triggering of the Emergency
Tensioning Devices and air bags" (
Ypage 52).
See "Children in the vehicle" for information on
children traveling with you in the vehicle as well
as on child restraint systems (
Ypage 54).
Important safety notes
GWARNING
Modifications to the restraint system may
cause it to no longer work as intended. The
restraint system may then not perform its
intended protective function and may fail in an
accident or trigger unexpectedly, for example.
This poses an increased risk of injury or even fatal injury.
Never modify parts of the restraint system.
Never tamper with the wiring, the electronic
components or their software.
If it is necessary to modify components of the
restraint system to accommodate aperson with
disabilities, contact an authorized Mercedes-
Benz Center for details. USA only: for further
information contact our Customer Assistance
Center at 1-800-FOR-MERCedes
(1‑800‑367‑6372).
Mercedes-Benz recommends that you only use
driving aids which have been approved specifi-
cally for your vehicle by Mercedes-Benz.
40Occupant safety
Safety

occupant in the best position in relation to the
air bag.
The seat belt system comprises:
RSeat belts
REmergency TensioningDevices for the front
seat belts and the outer seat belts in the rear
RSeat belt force limiters for the front seat belts
and the outer seat belts in the rear
If the seat belt is pulled out of the belt outlet
quickly or with ajerk ym ovement,t he belt
retractor locks. The belt strap cannot be extrac-
ted any further.
The Emergency TensioningD evice tightensthe
seat belt in an accident,p ulling the belt close
against the body. However it does not pull the
vehicle occupant back in the direction of the
backrest.
The Emergency TensioningD evice does not cor-
rect an incorrect seat position or the routing of
an incorrectly fastened seat belt.
When triggered, aseat belt force limiter helps to
reduce the force exerted by the seat belt on the
vehicle occupant.
The seat belt force limiters for the front seats are
synchronized with the front air bags, which
absorb part of the deceleration force. This can
reduce the force exerted on the vehicle occu-
pants during an accident.
!If the front-passenger seat is not occupied,
do not engage the seat belt tongue in the
buckle on the front-passenger seat. Other-
wise, the Emergency TensioningD evice and
side impact air bag could be triggered in the
event of an accident and would need to be
replaced.
Important safety notes
The use of seat belts and child restraint systems
is required by law in:
Rall 50 states
Rthe U.S. territories
Rthe District of Columbia
Rall Canadian provinces
Even where this is not required by law, all vehicle
occupantss hould correctly fasten their seat
belts before starting the journey.
GWARNING
If the seat belt is not worn correctly, it cannot
perform its intended protective function. An
incorrectly fastened seat belt can also cause
injuries, for example, in the event of an acci-
dent or when braking or changing direction
abruptly. This poses an increased risk of injury or even fatal injury.
Always ensure that all vehicle occupantsh ave
their seat belts fastened correctly and are sit-
ting properly.
The components of the restraint system work in
conjunction with each other. They can only
deploy their protective function if, at all times, all vehicle occupants:
Rhave fastened their seat belts correctly
(Ypage 43)
Rhave the seat and head restraint adjusted
properly (Ypage 90)
GWARNING
The seat belt does not offer the intended level of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing or in the event of an accident,y ou could
slide underneath the seat belt and sustain
abdomen or neck injuries, for example. This
poses an increased risk of injury or even fatal injury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder.
GWARNING
Persons less than 5ft(1.50 m) tall cannot
wear the seat belt correctly without an addi-
tional and suitable restraint system. If the
seat belt is not worn correctly, it cannot per-
form its intended protective function. An
incorrectly fastened seat belt can also cause
injuries, for example, in the event of an acci-
dent or when braking or changing direction
abruptly. This poses an increased risk of injury or even fatal injury.
For this reason, alwayss ecure persons under
5ft( 1.50 m) tall in suitable additional restraint
systems.
42Occupant safety
Safety

Ifac hild younger than twelve years old and
under 5ft(1.50m)inh eight is travelingint he
vehicle:
Ralways secur ethe child in achild restraint
system suitable for this Mercedes-Ben zvehi-
cle. The child restraint system must be appro-
priatetot he age, weight and size of the child
Ralways observe the instructions and safety
notes on "Children in the vehicle"
(
Ypage 54) in addition to the child restraint
system manufacturer'si nstallation and oper-
atin ginstructions
Ralways observe the instructions and safety
notes on the "Occupant classification system
(OCS)" (
Ypage 47)
GWARNING
The seat belts may not perform their intended protective function if:
Rthe yare damaged, modified, extremely
dirty, bleache dordyed
Rthe seat belt buckle is damaged or
extremely dirty
Rthe Emergency Tensionin gDevices, belt
anchoragesori nertia reels have been modi-
fied.
Seat belts may be damaged in an accident,
althoug hthe damage may not be visible, e.g.
due to splinters of glass. Modifiedord amaged
seat belts may tear or fail, e.g. in an accident.
ModifiedE mergency Tensionin gDevices
could accidentally trigger or fail to deploy
when necessary. This poses an increased risk
of injury or even fatal injury.
Never modifyt he seat belts,Eme rgency Ten-
sioning Devices, belt anchoragesa nd inertia
reels. Make sure that the seat belts are
undamaged, not worn out and clean .Follow-
ing an accident ,have the seat belts checked
immediately at aqualified specialist work-
shop.
Only use seat belts that have been approved for
your vehicle by Mercedes-Benz.
Sports seat or AMG Performance seat: this
seat is designed for the standard three-point
seat belt. If you install another multi-point seat
belt, e.g. sport or racin gseat belts ,the restraint system cannot provide the best level of protec-
tion.
GWARNING
If you feed seat belts through the opening in
the seat backrest,t he seat backrest may be
damaged or may even break in the eventofa n
accident .This poses an increased risk of
injury or even fatal injury.
Only use the standard three-point seat belt.
Never modifyt he seat belt system.
Proper use of th eseat belts
Observe the safetyn otes on the seat belt
(Ypage 42).
All vehicle occupant smust be wearingt he seat
belt correctly beforeb eginningthe journey. Also
make sure that all vehicle occupant sare always
wearing the seat belt correctly while the vehicle
is in motion.
When fastenin gthe seat belt, always make sure
that:
Rthe seat belt buckle tongue is inserted only
int ot he belt buckle belonging to that seat
Rthe seat belt is pulled tigh tacross your body
Avoid wearing bulky clothing ,e.g. aw inter
coat.
Rthe seat belt is not twisted
Only the ncan the forces which occur be dis-
tributed over the area of the belt.
Rthe shoulder section of the belt is routed
across the center of your shoulder
The shoulder section of the seat belt should
not touc hyour nec korber outed under your
arm or behindy our back.Where possible,
adjust the seat belt to the appropriate height.
Rthe lap belt is taut and passes across your lap as low down as possible
The lap belt must always be routed across
your hip joints and not across your abdomen.
This applies particularly to pregnant women.
If necessary, push the lap belt down to your
hip join tand pull it tigh tusing the shoulder
section of the belt.
Rthe seat belt is not routed across sharp, poin-
ted or fragile objects
If you have such item slocated on or in your
clothing ,e.g. pens ,keys or eyeglasses,s tore
these in asuitable place.
Ronly one personisu singaseat belt
Occupant safety43
Safety
Z