2018 MERCEDES-BENZ CLA COUPE brakes

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

ESP®(ElectronicStability Pro-
gram) ............................................... 64
Important safety information ........... 61
Overview .......................................... 61
STEER CONTROL ............................. 68
Driving system
Distance Pilo tDISTRONIC. ............ 151
DYNAMIC BODY CONTROL ............ 160
Parking assis tPARKTRONIC .......... 161
Parking Pilo t.................................. 164
RAC ESTART( Mercedes-AMG
vehicles) ........................................ 158
Start-off assis t............................... 158
Drivin gsystems
AMG adaptive sport suspension
system ........................................... 159
ATTENTIONA SSIST ........................ 171
Blind Spot Assist ............................ 172
Cruise control ................................ 149
Displa ymessage ............................ 207
HOLD function ............................... 157
Lane Keeping Assist ...................... 174
Lane Tracking packag e.................. 172
Rear vie wcamera .......................... 167
Drivin gtips
Automati ctransmissio n................. 133
Brakes ........................................... 146
Break-in perio d.............................. 121
Checking brake lining thickness .... 147
Distance Pilo tDISTRONIC ............. 156
Downhil lgradient ........................... 146
Drinking and driving ....................... 144
Driving in winter ............................. 148
Driving on floode droads ................ 148
Driving on we troads ...................... 148
Exhaus tcheck ............................... 144
Fue l................................................ 144
General. ......................................... 144
Hydroplaning ................................. 148
Icy roads urfaces ........................... 148
Limite dbraking efficiency on sal-
ted roads ....................................... 147
Snow chains .................................. 290
The first 1000 miles (150 0km) ..... 121
Wet roads urface ........................... 146
DVD video
Operating (on-board computer) ..... 183 see also Digital Operator's Man-
ua
l.................................................. 229
DYNAMI CSELECT button
Climate control (3-zone automatic climate control )............................. 115
Climate control (air-conditioning
system) .......................................... 112
DYNAMI CS
E
LECT button(allv eh i-
cles except Mercedes-AMG vehi-
cles) .................................................... 128
DYNAMI CSELECT controller
(Mercedes-AM Gvehicles) ................. 129
E
EBD (electronicb rake forcedistri-
bution)
Displa ymessage ............................ 194
Function/note s................................ 67
EC Od isplay
Function/note s............................. 145
On-board compute r....................... 180
EC Os tart/stopf unction
Automati cengine start .................. 126
Automati cengine switch-off .......... 126
Deactivating/activating ................. 127
Generali nformation ....................... 126
Important safety notes .................. 126
Introduction ................................... 125
Electronic Stability Program
see ESP
®(Electronic Stability Program)
Emergency
Automati cmeasures afte ranacci-
dent ................................................. 54
Emergencyr elease
Driver's doo r.................................... 77
Vehicl e............................................. 77
EmergencyT ensioningDevices
Activation ......................................... 52
Emission scontrol
Service and warranty information .... 25
Engine
Check Engine warning lamp ........... 224
Displa ymessage ............................ 205
ECO start/stop function ................ 125
Engine number ............................... 315
Irregula rrunning ............................ 127
Jump-starting ................................. 278
Index9

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

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

Important safety notes
iObservethe "Importan tsafet ynotes "sec-
tion (Ypage 61).
GWARNIN G
If BA Sism alfunctioning ,the braking distanc e
in an emergenc ybraking situation is
increased. Ther eisariskofana ccident.
In an emergenc ybraking situation ,depress
th eb rak epedal wit hfull force .ABS prevents
th ew heels from locking.
Braking
XKee pthe brak epedal firmly depressed until
th ee mergenc ybraking situation is over.
AB Sp revents th ewheels from locking.
The brakes will function as usual once you
release th ebrak epedal .BAS is deactivated.
Active Brak eAssist
General information
iObserv ethe "Importan tsafet ynotes "sec-
tion (Ypage 61).
Active Brake Assist consist sofadistancewarn-
ing function wit hanautonomous braking func-
tion and situation-dependen tbraking assis-
tance
Active Brake Assist can help you to minimiz ethe
ris kofac ollision wit hthe vehicl etraveling in
fron torr educe th eeffects of suc hacollision .
If Active Brake Assist detects that there is arisk
of collision ,you will be warned visually and
acoustically. If you do no treac ttot hevisual and
audible collision warning ,autonomous braking
can be initiate dincritical situations. If you apply
th eb rak eyourself in acritical situation ,Adap-
tive Brake Assist support syou wit hsituation -
dependen tbraking assistance.
Important safety notes
Detection of hazardous situation scan be par-
ticularly impaired if:
Rthere is dirt on th esensor soranythin gelse
covering th esensor s
Rthere is snow or heav yrain
Rthere is interferenc ebyother radar source s
Rthere are strongradar reflections, for exam-
ple in parking garages
Ran arrow vehicl eistraveling in front, e.g. a
motorbike
Rav ehicl eistraveling in fron tonadifferentlin e
Ryou are driving anew vehicl eorservicing on
th eA ctiv eBrake Assist system has jus tbeen
carrie dout
Observ ethe important safet ynotes in the
"Breaking-in notes" section (
Ypage 121).
Followin gdamag etothefron tend of th evehicle,
hav ethe configuration and operation of th e
radar sensor checke dataqualified specialist
workshop. This also applie stocollision satlow
speeds wher enovisible damag etothefron tof
th ev ehicl eisa pparent.
Activating/deactivating
Active Brake Assist is active after every ignition
cycle.
You can activat eordeactivat eActiv eBrake
Assist (
Ypage 185) in th eon-bo ard computer.
When deactivated, th edistanc ewarning func-
tion and th eautonomous braking function are
also deactivated.
If Active Brake Assist is deactivated, th eæ
symbol appear sintheassistanc egraphic dis-
play.
Distance warning function
Gene ralinformation
The distanc ewarning function can help you to
minimiz ethe riskofaf ront-end collision wit ha
vehicl eahead or reduce th eeffects of suc ha
collision .Ifthedistanc ewarning function
detects that there is ariskofac ollision ,you will
be warned visually and acoustically.
Imp ortant safety notes
iObserv ethe "Importan tsafet ynotes "sec-
tion for driving safet ysystems (Ypage 61).
GWARNIN G
The distanc ewarning function does no treact:
Rto people or animals
Rto oncomin gvehicles
Rto crossing traffic
Rwhen cornering
62Driving safety systems
Safety

The distance warning function may not give
warnings in all critical situations. There is a
risk of an accident.
Always pay careful attention to the traffic sit-uation and be ready to brake.
Always adapt your speed to suit the prevailing
road and traffic conditions.
GWARNING
The distance warning function cannot always
clearly identify object sand complex traffic
situations.
In such cases, the distance warning function
may:
Rgive an unnecessary warning
Rnot give awarning
There is arisk of an accident.
Always pay careful attention to the traffic sit-
uation and do not rely solely on the distance
warning function.
Function
Starting at aspeed of approximately 4mph
(7 km/h), the distance warning function warns
you if you rapidly approach avehicle in front.A n
intermittent warning ton ewill then sound, and
the · distance warning lamp will light up in
the instrument cluster.
XBrake immediately in order to increase the
distance from the vehicle in front.
or
XTake evasive action, provided it is safe to do
so.
Due to the nature of the system, particularly
complicated but non-critical driving conditions
may also cause the system to display awarning.
With the help of the radar sensor system, the
distance warning function can detect obstacles
that are in the path of your vehicle for an exten-
ded period of time.
Up to aspeed of approximately 44 mph
(70 km/h), the distance warning function can
also react to stationary obstacles, such as stop-
ped or parked vehicles.
Autonomous braking function
If the driver does not react to the distance warn-
ing signal in acritical situation, Active Brake
Assist can assist the driver with the autonomous
braking function.
The autonomous braking function:
Rgives the driver more time to react to critical
driving situations
Rcan help the driver to avoid an accident or
Rreduces the effectsofana ccident
Vehicles without Distance Pilot DISTRONIC: the autonomous braking function is available in
the following speed ranges:
R4-65m ph (7-105 km/h) for moving objects
R4-31mph (7-50km/h)for stationary
objects
Vehicles with Distance Pilot DISTRONIC: the
autonomous braking function is available in the
following speedr anges:
R4-124 mph (7 -200 km/h )for moving
objects
R4-31m ph (7-50km/h)for stationary
objects
Due to the nature of the system ,particularly
complicated but non-critical driving conditions
may als ocaus ethe Autonomou sBraking Func-
tion to intervene.
Situation-dependent braking assis-
tance
General information
iObservet he "Important safety notes" sec-
tion (Ypag e61).
With the help of the rada rsensor system ,Adap-
tive Brake Assist can detect obstacles that are in
the path of you rvehiclef or an extended period
of time.
If Adaptive Brake Assist detects arisk of colli-
sion with the vehicleinf ront, it calculatesthe
brake pressure necessary to avoi dacollision. If
you apply the brakes forcefully ,situation-
dependent braking assistance adapts to the sit-
uation and automatically increases the brake
pressure to adegreea ppropriate to the traffic
situation.
Situation-dependent braking assistance pro-
videsb raking assistance in hazardou ssituations
at speeds above 4mph (7 km/h) .Itusesr adar
Driving safety systems63
Safety
Z

sensor technology to assess the traffic situa-
tion.
Situation-dependent braking assistance is capa-
ble of reacting to moving objects that have
alreadybeen detected as such at least once
over the period of observation, up to vehicle
speeds of around 155 mph (250 km/h).
Situation-dependent braking assistance can
also detect stationary objects, up to vehicle
speeds of around 44 mph (70 km/h).
XKeep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will work normally againi f:
Ryou release the brake pedal.
Rthere is no longer any danger ofacollision.
Rno obstacle is detected in front of your vehi-
cle.
Situation-dependent braking assistance is then
deactivated.
Important safety notes
iObserve the "Important safety notes" sec-
tion for driving safety systems (Ypage 61).
GWARNING
Adaptive Brake Assist does not react:
Rto people or animals
Rto oncoming vehicles
Rto crossing traffic
Rwhen cornering
As aresult, Adaptive Brake Assist may not
intervene in all critical conditions. There is a
risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake.
GWARNING
Adaptive Brake Assist cannot always clearly
identify objects and complex traffic situa-
tions.
In such cases, Adaptive Brake Assist might:
Rintervene unnecessarily
Rnot intervene
There is arisk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake. Terminate the
intervention in anon-critical driving situation.
Due to the nature of the system, complex but
non-critical driving conditions may also cause
Active Brake Assist to intervene.
Even if Active Brake Assist is not available due to
am alfunction in the radar sensor system, the
brake system is still available with full brake
boosting effect and BAS.
ESP®(Electronic Stability Program)
General notes
iObserve the "Important safety notes" sec-
tion (Ypage 61).
ESP
®monitors driving stability and traction,i .e.
power transmission between the tires and the
road surface.
If ESP
®detects that the vehicle is deviating from
the direction desired by the driver, one or more
wheels are braked to stabilize the vehicle. The
engine output is also modified to keep the vehi-
cle on the desired course within physical limits.
ESP
®assists the driver when pulling awayo n
wet or slippery roads. ESP®can also stabilize
the vehicle during braking.
ETS/4ETS (Electronic Traction System)
iObserve the "Important safety notes" sec-
tion (Ypage 61).
ETS traction control is part of ESP
®.Onv ehicles
with 4MATIC, 4ETS is part of ESP®.
Traction control brakes the drive wheels indi-
vidually if they spin. This enables you to pull
awaya nd accelerate on slippery surfaces, for
example if the road surface is slippery on one
side. In addition, more drive torque is transfer-
red to the wheel or wheels with traction.
Traction control remains active, even if you
deactivate ESP
®.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 61).
64Driving safety systems
Safety

You should therefore adapt your drivingstyle
to the differenth andlingcharacteristics. Have
the brakes ystemchecked at aqualified spe-
cialist workshop.
Please observet he information on warnin gand
indicator lamps (
Ypage 220)
(
Ypage 220) as well as on display messages
(Ypage 194).
ADAPTIVE BRAKE
ADAPTIVE BRAKE enhances braking safetya nd
offers increased braking comfort.Ina ddition to
the braking function ,ADA PTIVE BRAKE also has
the HOLDf unction (
Ypage 157) and hill start
assist (Ypage 125).
STEER CONTROL
Genera linformation
STEER CONTROL helps you by transmitting a
noticeable steeringf orcetothe steeringw heel
in the direction required for vehicle stabilization.
This steeringa ssistanceisprovided in particular
if:
Rboth right wheels or both left wheels are on a
wet or slippery road surfacew hen you brake
Rthe vehicle begins to skid
Important safetynotes
iObserve the "Importan tsafetyn otes" sec-
tion (Ypage 61).
No steeringa ssistanceisprovided from STEER
CONTROL, if:
RESP®is malfunctioning
Rthe steeringism alfunctioning
If ESP®is malfunctioning, you will be assisted
further by the electrical power steering.
Protection against theft
Immobilizer
The immobilizer prevent syour vehicle from
being started without the correctS martKey.
XTo activatewith theSmartKey: remove the
SmartKey from the ignition lock.
XTo activatew ith KEYLESS-GO start-func-
tion or KEYLESS-GO: switchthe ignition off
and open the driver's door.
XTo deactivate: switchont he ignition.
When leaving the vehicle, always tak ethe
SmartKey with you and lock the vehicle. Anyone
can star tthe engin eifavalid SmartKey has been
left inside the vehicle.
iThe immobilizer is always deactivate dwhen
you star tthe engine.
In the eventt hat the engin ecannot be started
(yet the vehicle's battery is charged), the sys-
tem is not operational. Contact an authorized
Mercedes-Ben zCenter or call
1-800-FOR-MERCedes (in the USA )or
1-800-387-0100( in Canada).
ATA (anti-theft alarms ystem)
XTo arm:lock the vehicle with the SmartKe yor
KEYLESS-GO.
Indicator lamp :flashes. The alarm system
is armed after approximately 15 seconds.
XTo disarm: unlock the vehicle with the Smart-
Key or KEYLESS-GO.
or
XInsert the SmartKe yintot he ignition lock.
Av isual and audible alarm is triggered if the
alarm system is armed and you open:
Rad oor
Rthe vehicle with the mechanical key
Rthe trun klid
Rthe hood
68Protection against theft
Safety