brakes MERCEDES-BENZ C-Class COUPE 2017 CL205 Owner's Manual

Beltsee Sea tbelts
Blind SpotA ssist
Activating/deactivating (on-
board computer) ............................ 213
Displa ymessage ............................ 237
Notes/functio n.............................. 191
see Active Blind Spot Assist
Bluetooth
®
Connecting another mobile
phone ............................................ 266
Searching for amobilephone ........ 265
see also Digital Operator's Man-
ua l.................................................. 258
Telephony ...................................... 265
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Displa ymessage ............................ 225
Note s............................................. 347
Brake forc edistribution
see EBD (electroni cbrake force
distribution)
Brakes
ABS .................................................. 62
Adaptive Brake Assist ...................... 66
BAS .................................................. 62
BAS PLU SwithC ross-Traffic
Assist ............................................... 62
Brake fluid (notes) ......................... 347
Displa ymessage ............................ 220
EBD .................................................. 70
High-performance brake system .... 159
Hil lstart assis t............................... 135
HOLD function ............................... 169
Important safety notes .................. 157
Maintenance .................................. 158
Parking brake ................................ 153
Riding tip s...................................... 157
Warning lamp ................................. 248
Breakdown
Where will Ifind...? ........................ 299
see Fla ttire
see Towing away
Brightness control( instrument
cluste rlighting) ................................... 33
Button sonthe steering wheel ......... 201
C
California
Important notice for retail cus-
tomers and lessees .......................... 26
Calling up amalfunction
see Displa ymessages
Calling up the climate controlb ar
Multimedia system ........................ 262
Calling up the climate control
menu
Multimedia system ........................ 262
Car
see Vehicle
Care
360° camera ................................. 296
Carw ash. ....................................... 292
Carpets .......................................... 298
Displa y........................................... 297
Exhaus tpipe. ................................. 296
Exterior lights ................................ 295
Gear or selector lever .................... 297
Genera lnotes ................................ 292
Interior ........................................... 297
Matte finish ................................... 294
Paint .............................................. 294
Plastic trim .................................... 297
Power washer. ............................... 293
Rear vie wcamera .......................... 296
Roof lining ...................................... 298
Seatb elt. ....................................... 298
Seatc over..................................... 297
Sensors ......................................... 296
Steering wheel. .............................. 297
Tri mp ieces. ................................... 297
Washing by hand ........................... 293
Wheels. .......................................... 295
Window s........................................ 295
Wipe rblade s.................................. 295
Woode ntrim .................................. 297
Carg otie dow nrings ......................... 272
CD
see also Digital Operator's Man-
ual.................................................. 258
CD player (on-board computer) ........ 209
Centerc onsole
Lower section ............................ 37, 38
Upper section .................................. 36
Index5

Opening (from inside) ......................81
Drinking and drivin g........................ .156
Driv eprogram
Automatic transmission ................. 144
SETUP (on-board computer) .......... 216
Driv eprograms
Display (DIREC TSELECT lever) ...... 142
Driver's door
see Doors
Driving abroad
Mercedes-Benz Service ................. 292
Driving Assistanc ePLUSp ackage ... 194
Driving on flooded roads .................. 159
Driving safety systems
ABS (Anti-lock Braking System) ....... 62
ADAPTIVE BRAKE .............................7 0
Adaptive Brake Assist ...................... 66
BAS (Brake Assist System) .............. 62
BAS PLU SwithC ross-Traffic
Assist ............................................... 62
COLLISION PREVENTION ASSIST
PLU S................................................ 64
Distance warning functio n............... 65
EBD (electroni cbrake force distri-
bution) ............................................. 70
ESP
®(Electronic Stability Pro-
gram) ............................................... 67
Important safety information ........... 61
Overview .......................................... 61
PRE-SAFE
®Brake ............................. 70
STEER CONTROL ............................. 72
Drivin gsystem
RAC ESTART( Mercedes-AMG
vehicles) ........................................ 171
Drivin gsystems
360°camera .................................. 185
Active Blind Spot Assist ................. 194
Active Lane Keeping Assist ............ 197
Active Parking Assist ..................... 177
AIRMATIC. ..................................... 172
AMG adaptive sport suspension
system ........................................... 173
ATTENTIO NASSIST ........................ 189
Blind Spot Assist ............................ 191
Cruise control ................................ 160
Displa ymessage ............................ 236
DISTRONIC PLU S........................... 162 DISTRONIC PLU
SwithS teering
Assist and Stop&G oPilot ............... 168
Driving Assistance Plus packag e... 194
HOLD function ............................... 169
Lane Keeping Assist ...................... 193
Lane Tracking packag e.................. 191
PARKTRONIC ................................. 174
Rear vie wcamera .......................... 181
Tra ffic Si
g
nAssist .......................... 190
Drivin gtips
AMG ceramic brakes ..................... 159
Automati ctransmission ................. 143
Brakes ........................................... 157
Break-in perio d.............................. 130
DISTRONIC PLU S........................... 167
Downhil lgradient ........................... 157
Drinking and driving ....................... 156
Driving in winter ............................. 160
Driving on floode droads ................ 159
Driving on we troads ...................... 159
Exhaus tcheck ............................... 156
Fue l................................................ 155
Genera l.......................................... 155
Hydroplaning ................................. 159
Icy roa dsurfaces ........................... 160
Limite dbraking efficiency on sal-
ted roads ....................................... 158
Snow chains .................................. 319
Subjecting brakes to aloa d. .......... 158
The first 1000 miles (150 0km) ..... 130
Wet roa dsurface ........................... 158
DVD video
Operating (on-board computer) ..... 209
see also Digital Operator's Man-
ual.................................................. 258
DYNAMI CSELECT switch
Automati ctransmission ................. 139
Climate control (dual-zone auto-
mati cclimate control ).................... 121
E
EASY-ENTRY feature
Function/note s............................. 105
EASY-EXIT feature
Function/note s............................. 105
8Index

Type identificationplate
see Vehicl eide ntificatio nplate
U
Unlocking
Emergency unlocking ....................... 82
From insid ethe vehicl e(central
unlocking button) ............................. 81
US Bd evices
Connecting to the Media Inter-
face ...............................................2 67
V
Vanity mirror (in the sun visor)........275
Vehicle
Correct use ...................................... 29
Data acquisition ............................... 30
Display message ............................ 243
Equipment ....................................... 26
Individua lsettings .......................... 211
Limited Warranty .............................3 0
Loading .......................................... 326
Locking (in an emergency) ............... 82
Locking (SmartKey) .......................... 74
Lowering ........................................ 340
Maintenance .................................... 27
Operating safety .............................. 28
Parking .......................................... 152
Parking for along period. ............... 155
Pulling awa y................................... 134
Raising ........................................... 337
Reporting problems ......................... 29
Securing from rolling away ............ 336
Towing away .................................. 310
Transporting .................................. 312
Unlocking (i nanemergency) ........... 82
Unlocking (SmartKey )...................... 74
Vehicl edata. .................................. 349
Vehicl edata
Roof load (maximum) ..................... 349
Trunk load (maximum) ................... 349
Vehicl edimensions ........................... 349
Vehicl eemergencyl ocking ................ 82
Vehicl eidentificatio nnumber
see VIN
Vehicl eidentificatio nplate .............. 343 Vehicl
elevel
AIRMATIC. ..................................... 172
Displa ymessage ............................ 236
Vehicl etoolkit.................................. 300
Video
Operating the DVD ......................... 209
see also Digital Operator's Man-
ual.................................................. 258
VIN
Seat. .............................................. 344
Type plate ...................................... 343
Voice ControlS ystem
see Separate operating instructionsW
Warning and indicator lamps ABS ................................................ 249
Brakes ........................................... 248
Check Engine ................................. 252
Coolant .......................................... 253
Distance warning ........................... 255
ESP
®.............................................. 249
ESP®OFF ....................................... 251
Fue ltank ........................................ 252
Genera lnotes ................................ 246
Overview .......................................... 34
Parking brake ................................ 252
PASSENGER AIR BAG ...................... 42
Reserve fue l................................... 252
Restraint system ............................ 252
Seatb elt. ....................................... 247
SPOR Thandling mod e................... 251
Steering ......................................... 257
Tire pressure monitor .................... 256
Warranty .............................................. 26
Washer fluid
Displa ymessage ............................ 245
Wheel and tire combinations
Tires ............................................... 340
Wheel bolt tightenin gtorque ........... 340
Wheel chock ...................................... 336
Wheels
Changing awheel .......................... 335
Checking ........................................ 317
Cleaning ......................................... 295
Important safety notes .................. 316
Information on driving .................... 316
Index21

Reporting safety defects
USA only:
The following text is published as required of
manufacturers under Title 49, Code of U.S. Fed-
eralRegulat ions,Part5 75 pursuant to the
"Nationa lTraffic and Moto rVehicl eSafety Act of
1966".
If yo ubelieve that your vehicl ehasad efect
which could cause acras horc ould cause injury
or death, yo ushoul dimmediately inform the
NationalH ighway Traffic Safety Administration
(NHTSA) in addition to notifying Mercedes-Benz
USA, LLC.
If NHTSA receive ssimilar complaints, it may
ope nani nvestigation, and if it find sthat asafety
defect exists in agroup of vehicles, it may order
ar ecall and remedy campaign. However, NHTSA
canno tbecome involve dinindividual problems
between you, your dealer, or Mercedes-Benz
USA, LLC.
To contact NHTSA, yo umay cal lthe Vehicle
Safety Hotline toll-free at
1-888-327-4236(TTY: 1-800-424-9153) ;goto
http://www.safercar.gov ;orwrite to: Admin-
istrator, NHTSA, 400 Seventh Street, SW.,
Washington, DC 20590.
Yo uc an also obtain othe rinformation about
motor vehicl esafety from
http://www.safercar.gov
LimitedW arranty
!
Follo wthe instructions in this manual about
the proper operation of your vehicl easwella s
aboutp ossible vehicl edamage. Damage to
your vehicl ethat arises from culpabl econtra-
ventions against thes einstructions is not cov-
ere deither by the Mercedes-Benz Limited
Warranty or by the New or Used-Vehicle War-
ranty.
QR codes for the rescue card
The QR code sare secured in the fue lfille rflap
and on the opposite sid eonthe B-pillar. In the
event of an accident, rescue service scan use
the QR code to quickl yfind the appropriate res-
cue card for your vehicle. The current rescue
card contains the most important information abouty
ourv ehicl einac ompact form, e.g. the
routing of the electri ccables.
Yo uc an find more information under http://
portal.aftersales.i.daimler.com/public/
content/asportal/en/communication/
informationen_fuer/QRCode.html.
Data stored in the vehicle
Data storage
Aw ider ang eofe lectronic components in your
vehicl econtain data memories.
These data memorie stemporaril yorperma-
nently store technical information about:
Rvehicle's operating state
Rincidents
Rmalfunctions
In general ,this technical information docu-
ments the 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 statu smessages and thos eofits
individual components ,e.g. number of wheel
revolutions/speed, deceleration in move-
ment, latera lacceleration, accelerato rpedal
position
Rmalfunctions and defects in important system
components ,e.g. lights ,brakes
Rvehicl ereactions and operating conditions in
specia ldriving situations, e.g. ai rbag deploy-
ment, intervention of stability control sys-
tems
Rambient conditions ,e.g. outsid etemperature
Thi sd ataisofane xclusively technical nature
and can be used to:
Rassis tinrecognizing and rectifying malfunc-
tions and defects
Ranalyze vehicl efunctions, e.g. afte ranacci-
dent
Roptimize vehicl efunction
The data canno tbeu sedtot race the vehicle's
movements.
Whe nyourv ehicl eiss erviced, technical infor-
mation can be rea dfrom the event data memory
and malfunction data memory.
30Data stored in the vehicle
Introduction

Function
PRE-SAFE®intervenes:
Rin emergenc ybraking situations, e.g. when
BA Sisa ctivated
Rin critical driving situations, e.g. when physi-
cal limits are exceeded and th evehicl eunder-
steer soro versteer sseverely
Rvehicles wit hthe Drivin gAssistanc epackage:
when adriver assistanc esystem intervenes
powerfully or th eradar sensor system detect s
an imminent danger of collision in certai nsit-
uation s
PRE-SAF E
®takes thefollowin gmeasures
depending on th ehazardous situation detected:
Rthef ront seat belt sare pre-tensioned.
Rif th evehicl eskids, th eside windows and th e
panoram aroofw ithp ower tilt/slidin gpanel
are closed.
Rvehicles wit hthe memory function for th e
front-passenger seat :the front-passenger
seat is adjusted if it is in an unfavorable posi -
tion .
If th ehazardous situation passes without result -
ing in an accident, PRE-SAF E
®slackens thebelt
pre-tensioning .All setting smade by PRE-SAF E®
can then be reversed.
If theseat belt pre-tensioning is no treduced:
XMov ethe seat backrest or seat bac kslightly
when th evehicl eiss tationary.
The seat belt pre-tensioning is reduce dand
th el ockin gmechanism is released.
The seat-belt adjustmen tisanintegral part of
th eP R
E-SAF E®convenience function .You will
fin dinformation on th econveni ence function
under "Belt adjustment" (
Ypage 46).
PRE-SAFE®PLUS (anticipatory occu-
pant protection system PLUS)
Introduction
PRE-SAF E®PLUSiso nlya vailable in vehicles
wit hthe Drivin gAssistanc epackage.
Usin gthe radar sensor system, PRE-SAF E
®
PLUSisa ble to detect that ahead-on or rear-end
collision is imminent .Incertainhazardous sit -
uations, PRE-SAF E
®PLUStakes pre-emptive
measures to protect th evehicl eoccupants.
Important safety notes
The intervention of PRE-SAF E®PLUScanno t
preven tanimminent collision .
The driver is no twarned about th eintervention
of PRE-SAF E
®PLUS.
PRE-SAF E®PLUSdoes no tinterven eifthevehi-
cle is backin gup.
When driving ,orwhen parking or exiting apark -
ing spac ewitha ssistanc efromA ctiveParking
Assist ,PRE-SAF E
®PLUSwill no tapply th e
brakes.
Function
PRE-SAF E®PLUSintervenes in certai nsitua-
tion sift heradar sensor system detect san
imminent head-on or rear-end collision .
PRE-SAF E
®PLUStakes th efollowin gmeasures
depending on th ehazardous situation detected:
Rif th eradar sensor system detect sthata
head-on collision is imminent ,the seat belt s
are pre-tensioned.
Rif th eradar sensor system detect stha tar ear-
en dc ollision is imminent :
-theb rak epressur eisincreased if th edriver
applie sthe brakes when th evehicl eiss ta-
tionary.
-th es eat belt sare pre-tensioned.
The PRE-SAF E®PLUSbraking application is can -
celed:
Rif th eaccelerato rpedal is depressed when a
gear is engage d
Rif theriskofac ollision passes or is no longer
detected
Rif DISTRONI CPLUSindicates an intention to
pull away
If th ehazardous situation passes without result -
ing in an accident, th eoriginal setting sare
restored .
Automati cmeasures after an acci-
dent
Immediately after an accident, th efollowin g
measures are implemented, depending on th e
typ eand severit yoftheimpact :
Rtheh azard warning lamps are activated
Rthee mergenc ylighting is activated
Rthev ehicl edoor sare unlocked
56Occupant safety
Safety

ABS (Anti-lock Braking System)
Gene ralinform ation
ABSregulates brak epressur einsuchaw ay that
th ew heels do no tloc kw hen you brake. This
allows you to continu esteering th evehicl ewhen
braking .
The ! ABSw arning lamp in th einstrumen t
cluste rlights up when th eignition is switched
on .Itg oeso ut when th eengineisr unning.
AB Sw orks from aspee dofa bout5mph
(8 km/h), regardless of road-surface conditions.
AB Sw orks on slipper ysurfaces, eve nwhen you
only brak egently.
Import ant safety notes
iObservethe "Importan tsafet ynotes "sec-
tion (Ypage 61).
GWARNIN G
If AB Sisf aulty, th ewheels could loc kwhen
braking .The steerabilit yand braking charac -
teristics may be severely impaired. Addition -
ally, further drivin gsafet ysystems are deac -
tivated. There is an increased danger of skid-
din gand accidents .
Drive on carefully. Hav eABS checke dimme-
diately at aqualified specialis tworkshop .
When AB Sismalfunctioning ,other systems ,
includin gdrivin gsafet ysystems ,will also
become inoperative. Observ ethe information
on th eABS warning lamp (
Ypage 249) and dis-
play message swhichm ay be shown in th e
instrumen tcluste r(
Ypage 220).
Braking
XIf ABS intervenes: continuetodepress th e
brak epedal vigorously until th ebraking sit -
uation is over.
XTo make afullb rake application: depress
th eb rak epedal wit hfull force .
If AB Sintervenes when braking ,you will fee la
pulsing in th ebrak epedal .
The pulsating brak epedal can be an indication
of hazardous road conditions, and function sasa
reminder to tak eextra carew hile driving.
BAS (Brak eAssistS ystem)
Gene ralinform ation
BASo perate sinemergenc ybraking situations.
If you depress th ebrak epedal quickly, BA S
automatically boosts th ebraking force ,thu s
shortening th estopping distance.
Imp ortant safety notes
iObserv ethe "Importan tsafet ynotes "sec-
tion (Ypage 61) .
GWARNIN G
If BA Sism alfunctioning ,the braking distanc e
in an emergenc ybraking situation is
increased. There is ariskofana ccident.
In an emergenc ybraking situation ,depress
th eb rak epedal wit hfull force .ABS prevents
th ew heels from locking .
Braking
XKeepthe 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.
BAS PLUS (Brak eAssistS ystem
PLUS)w ith Cross-Traffic Assist
Gene ralinform ation
BASP LUSc an help you to minimiz ethe riskofa
collision wit havehicleorap edestrian and
reduce th eeffects of suc hacollision .IfBAS
PLU Sdetects adanger of collision ,you are
assisted when braking .
iPay attention to theimportant safet ynotes
in th e"Drivin gsafet ysystems "section
(
Ypage 61) .
BA SP LUSiso nlya vailable on vehicles wit hthe
Drivin gAssistance package.
Fo rB AS PLU Stoa ssist you when driving, th e
radar sensor system and th ecamera system
mus tbeo perational.
62Driving safety systems
Safety

Function
To avoidacollision ,BAS PLU Scalculates th e
brak eforce necessar yif:
Ryou approac hanobstacle ,and
RBA SP LUSh as detected ariskofc ollision
When drivin gatas peed under 20 mp h
(30 km/h ):ifyou depress th ebrak epedal, BA S
PLU Sisa ctivated. The increas einbrakepres-
sure will be carried out at th elast possible
moment.
When drivin gatas peed abov e20mph
(30 km/h) :ifyou depress th ebrak epedal
sharply, BA SPLUSa utomatically raises th e
brak epressur etoav alue adapted to th etraffic
situation .
BA SP LUSp rovide sbraking assistanc einhaz-
ardous situation swithv ehicles in fron twithin a
spee drange between 4mph (7 km/h) and
15 5m ph (25 0km/ h).
At speeds of up to approximately 44 mph
(70 km/h), BA SPLUSc an reac tto:
Rstationary object sinthepat hofy our vehicle,
e.g. stoppe dorparked vehicles
Rpedestrian sinthepat hofy our vehicl e
Robstacles crossing your path, whic hmovei n
th ed etection range of th esensor sand are
recognize dbythem
iIf BA SPLUSd emand sparticularly high brak -
ing force, preventative passenger protection
measures (PRE-SAF E
®)are activated simulta-
neously (Ypage 55).
XKeepthe brak epedal depressed until th e
emergenc ybraking situation is over.
AB Sp reve
nts th
ewheels from locking.
BA SP LUSisd eactivated and th ebrakes func-
tion as usual again ,if:
Ryou release th ebrak epedal.
Rthere is no longer ariskofc ollision .
Rno obstacle is detected in fron tofyour vehi-
cle .
Ryou depress th eaccelerato rpedal
Ryou activat ekickdown .
COLLISIONP REVENTIO NASSIST
PLUS
General information
iObserv ethe "Importan tsafet ynotes "sec-
tion (Ypage 61).
COLLISION PREVENTION ASSIST PLU Sconsists
of ad istanc ewarning function wit hanautono-
mous braking function and adaptive Brake
Assist .
COLLISION PREVENTION ASSIST PLU Scan help
you to minimiz ethe riskofaf ront-end collision
wit hav ehicleahead or reduce th eeffect sof
suc hac ollision .
If COLLISION PREVENTION ASSIST PLU S
detect stha tthe re is ariskofac ollision ,you will
be warned visually and acoustically. If you do no t
reac ttot hevisual and audible collision warning ,
autonomous braking can be initiate dincritical
situations. If you apply th ebrak eyourself in a
critical situation ,the COLLISION PREVENTION
ASSIST PLU Sadaptive Brake Assist assist syou.
Important safety notes
In particular, th edetection of obstacles can be
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 sources
Rthere are stron gradar reflections, for exam-
ple in parking garages
Ran arrow vehicl etraveling in front, e.g. a
motorbike
Rav ehicl etraveling in fron tonadifferent lin e
Rnewv ehicles or after aservic eont heCOLLI-
SION PREVENTION ASSIST PLU Ssystem
Observ ethe important safet ynotes in the
"Breaking-in notes" section (
Ypage 130).
Followin gdamag etothefron tend of th evehicle,
have th econfig uration and operation of th e
radar sensor checked at aqualified specialist
workshop. This also applie stocollision satslow
speeds wher ethere is no visible damag etothe
fron toft hevehicle.
64Driving safety systems
Safety

Vehicles with DISTRONICPLUS:the autono-
mou sbraking function is available in the follow-
ing speed ranges:
R4-1 24 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
complicate dbutnon-critica ldriving conditions
may also cause the Autonomous Braking Func-
tion to intervene.
If the autonomous braking function requires a
particularly hig hbraking force ,preventative
passenger protectio nmeasures (PRE-SAFE
®)
are activate dsimultaneously (Ypage 55).
Adaptive Brake Assist
General information
iObserve the "Important safety notes "sec-
tion (Ypage 61).
With the hel pofadaptive Brake Assist, the dis-
tance warning signal can detect obstacles that
are in the path of your vehicl efor an extended
perio doft ime.
If adaptive Brake Assist detects ariskofc olli-
sio nw itht he vehicl einfront, it calculate sthe
braking force necessary to avoid acollision. If
yo ua pply the brakes forcefully ,adapt ive Brake
Assist will automaticall yincreas ethe braking
force to alev el suitabl efor the traffic conditions.
Adaptive Brake Assist provides braking assis-
tance in hazardouss ituations at speeds above
4m ph (7 km/h). It uses radar sensor technology
to asses sthe traffic situation.
Up to aspeed of approximately 155 mph
(250 km/h), adaptive Brake Assist is capable of
reacting to moving objects that have already
bee ndetected as such at leas tonce ove rthe
perio dofo bservation.
Up to aspeed of approximately 44 mph
(70 km/h),a daptive Brake Assist reacts to sta-
tionary obstacles.
If adaptive Brake Assist demand sparticularly
hig hb raking force ,preventative passenger pro-
tectio nmeasures (PRE-SAFE
®)are activated
simultaneously (Ypage 55).
XKee pthe brake pedal depressed unti lthe
emergency braking situation is over.
ABS prevents the wheel sfrom locking. The brakes wi
ll w
ork normall
yagain if:
Ryour elease the brake pedal.
Rthere is no longer any danger of acollision.
Rno obstacl eisdetected in front of your vehi-
cle.
Adaptive Brake Assist is then deactivated.
Important safety notes
iObserve the "Important safety notes "sec-
tion for driving safety systems (Ypage 61).
GWARNING
Adaptive Brake Assist canno talway sclearly
identif yobjects and comple xtraffic situa-
tions.
In such cases, Adaptive Brake Assist can:
Rintervene unnecessarily
Rnot intervene
There is ariskofana ccident.
Alway spaycareful attention to the traffic sit-
uation and be ready to brake. Terminate the
intervention in anon-critica ldriving situation.
GWARNING
Adaptive Brake Assist doe snot react:
Rto peopl eoranimals
Rto oncoming vehicles
Rto crossing traffic
Rwhen cornering
As aresult, the Adaptive Brake Assist may not
intervene in al lcritical conditions .There is a
ris kofana ccident.
Alway spaycareful attention to the traffic sit-
uation and be ready to brake.
Due to the nature of the system, particularly
complicate dbutnon-critica ldriving conditions
may also cause Brake Assist to intervene.
If adaptive Brake Assist is not available du etoa
malfunction in the radar sensor system, the
brake system remains available with ful lbrake
boosting effect and BAS.
66Driving safety systems
Safety

the vehicle/trailercombinatio nbydepressing
the brake firmly.
ESP
®trailer stabilization is active above speeds
of abou t65k m/h.
ESP
®trailer stabilization does not work if ESP®
is deactivated or disabled because of amalfunc-
tion.
Crosswind Assist
General information
Strong crosswind scan cause your vehicl eto
deviate fromas traight course.The crosswind
drivin gassis tance functio nintegrated in ESP
®
noticeabl yreduce sthese impairments.
ESP®intervenes automaticall yaccording to the
direction and intensity of the crosswind saffect-
ing your vehicle.
ESP intervenes with stabilizing braking to assist
yo uink eeping the vehicl einthe lane.
Crosswind Assist is active at vehicl espeeds
above 50 mph (80 km/h )whend rivin gstraight
ahea dorc ornerin ggently.
Important safety notes
Crosswind Assist does not work if ESP®is deac-
tivated or disabled because of amalfunction.
EBD (electroni cbrak eforce distribu-
tion)
General information
EBD monitors and controls the brake pressure
on the rea rwheel stoi mprove drivin gstability
whil ebraking.
Important safety notes
iObserve the "Important safety notes" sec-
tio n(Ypage 61).
GWARNING
If EBD is malfunctioning ,the rea rwheel scan
lock, e.g .under full braking .Thisi ncreasest he
ris kofs kidding and an accident.
Yo us houl dtherefore adap tyou rd rivin gstyle
to the different handling characteristics. Have
the brake systemc hecked ataquali fied spe-
cialist workshop. Observe information regarding indicator and
warning lamps (
Ypage 249
)aswellasd isplay
message s(Ypage 222).
ADAPTIVE BRAKE
ADAPTIVE BRAKE enhance sbraking safety and
offers increasedb raking comfort. In additio nto
the braking function, ADAPTIVE BRAKE also has
the HOLD functio n(
Ypage 169) and hill start
assist (Ypage 135).
PRE-SAFE®Brake
General information
PRE-SAFE®Brake can help yo utominimize the
ris kofa collision with avehicl eahead or a
pedestrian, and reduce the effects of such a
collision. If PRE-SAFE
®Brake hasd etecte darisk
of collision, yo uwillbew arned visuall yand
acousticall yaswellasbya utomatic braking.
iPa ya ttentio ntothe important safety notes
in the "Driving safety systems" section
(
Ypage 61).
PRE‑SAFE
®Brake is onl yavailable in vehicles
with the Drivin gAssistance Plus package.
For PRE-SAFE
®Brake to assist yo uwhend riving,
the rada rsen sors ystema nd the camera system
must be switched on and be operational.
With the help of the rada rsen sorsystema nd the
camera system, PRE-SAFE
®Brake can detect
obstacle sthata rein front of your vehicl efor an
extende dperiodoft ime.
In addition, pedestrians in the path of your vehi-
cle can be detected.
PRE-SAFE
®Brake detects pedestrians using
typica lcharacteristics such as the body con-
tours and posture of aperso ns tanding upright.
iObserve the restrictions describe dinthe
"Important safety notes" section
(
Ypage 70).
Important safety notes
GWARNING
PRE-SAFE
®Brake will initiall ybrake your vehi-
cle by apartia lappli catio noft he brakes if a
dange rofcollision is detected. There mayb e
70Driving safetysystems
Safety

acollision unless you brak eyourself. Even
after subsequentf ull applicationofthebrakes
ac ollision canno talways be avoided, partic-
ularly when approaching at to ohigh aspeed.
Thereisar isk of an accident.
Always apply th ebrakes yourself and tr yto
tak eevasive action,p rovided it is safe to do
so.
In th eeven tofap artial applicatio nofthebrakes,
th ev ehicle is braked with up to 50 %ofthefull
braking pressure.
GWARNING
PRE-SAFE
®Brake canno talways clearly iden-
tif yo bject sand complex traffic conditions.
In these cases, PRE-SAFE
®Brake may:
Rgive an unnecessaryw arning and then
brak ethe vehicle
Rnotg ive awarning or intervene
Thereisar isk of an accident.
Always pay particular attention to th etraffic
situatio nand be ready to brake, especially if
PRE-SAFE
®Brake warn syou. Terminate the
intervention in anon-cri tical driving situation.
GWARNING
PRE-SAFE
®Brake canno talways clearly iden-
tif yp eople, especially if they are moving .In
these cases, PRE-SAFE
®Brake canno tinter-
vene. Thereisar isk of an accident.
Always pay particular attention to th etraffic
situatio nand be ready to brake, especially if
PRE-SAFE
®Brake warn syou.
In orde rtomaintain th eappropriat edistanc eto
th ev ehicle in fronta nd thus prevent acollision,
you must apply th ebrakes yourself.
GWARNING
PRE-SAFE
®Brake does no treact:
Rto small people, e.g .children
Rto animals
Rto oncoming vehicles
Rto crossing traffic
Rwhen cornering
As aresult, PRE-SAFE®Brake may neither
give warning snorintervene in all critical sit-
uations .Thereisar isk of an accident.
Always pay careful attention to th etraffic sit-
uatio nand be ready to brake.
In th eeven tofs nowfall or heavyr ain,the rec-
ognition can be impaired.
Recognition by th eradar sensor system is also
impaired if:
Rthere is dirt on th esensorsora nythingelse
coveringt hesensors
Rthere is interference by other radar sources
Rthere are stron gradar reflections ,for exam-
ple in parking garages
Ran arrow vehicle is travelin ginfront,e.g.a
motorbike
Rav ehicle is travelin ginfrontonadifferentl ine
relative to th ecente rofy our vehicle
Recognition by th ecamera system is also
impaired in th eeven tof:
Rdirt on th ecamera or if th ecamera is covered
Rglare on th ecamera system, e.g .fro mt hesun
beingl ow in th esky
Rdarkness
Ror if:
-pedestrians moveq uickly, e.g.int ot he path
of th evehicle
-thec amera system no longer recognize sa
pedestrian as aperson due to special cloth-
ing or other objects
-ap edestrian is concealed by other objects
-thet ypical outline of aperson is no tdistin-
guishable from th ebackground
Followingd amage to th efront end of th evehicle,
have th econfiguratio nand operatio nofthe
r

adar sensorsc hecked at aqualified specialist
workshop.T his also applies to collisionsats low
speeds wheret here is no visible damage to the
frontoft hevehicle.
Followingd amage to th ewindshield, have the
configuratio nand operatio nofthecamera sys-
te mc hecked at aqualified specialist workshop.
Driving safety systems71
Safety
Z