brake sensor 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

On-boardcomputer
AMG menu .................................... .216
Assistance graphic menu ...............2 11
Assistance menu ........................... 212
Display messages .......................... 219
Displaying aservice message ........2 91
DISTRONI CPLUS ........................... 166
Factory settings .............................2 15
G-Mete r......................................... 216
Head-up displa y............................. 203
Important safety notes .................. 200
Instrument cluster menu ............... 215
Lights menu ................................... 214
Media menu ................................... 208
Menu overview .............................. 204
Message memory .......................... 219
Navigation menu ............................ 206
Operation ....................................... 201
RACETIMER ................................... 217
Radi omenu ................................... 208
Service menu ................................. 211
Setting smenu ............................... 211
Standard display ............................ 204
Telephone menu ............................ 210
Tri pm enu ...................................... 204
Video DVD operation ..................... 209
Operatin gsafety
Declaration of conformity ................ 28
Important safety notes .................... 28
Operatin gsystem
see On-board computer
Operation
Digital Operator's Manua l................ 23
Operator's Manual
Overview .......................................... 26
Vehicl eequipment ........................... 26
Outside temperature display ........... 201
Overhead controlp anel...................... 39
P
Paddles hifters
see Steering wheelp addleshifters
Paint code number ............................ 343
Paintwork (cleaning instructions) ... 294
Panic alarm .......................................... 41 Panorama roo
fwithp ower tilt/
sliding panel
Important safety notes .................... 90
Operating ......................................... 92
Operating the rolle rsunblind sfor
the sliding sunroof. .......................... 93
Problem (malfunction) ..................... 95
Rain closing feature ......................... 93
Reversing feature ............................. 91
Parking
Important safety notes .................. 152
Parking brake ................................ 153
Position of exterio rmirror, front-
passenger sid e............................... 108
Rear vie wcamera .......................... 181
Switching off the engine ................ 153
see PARKTRONIC
Parking aid
see 360° camera
see Active Parking Assist
see Exterior mirrors
see PARKTRONIC
see Rear vie wcamera
Parking assistance
see PARKTRONIC
Parking brake
Applying automaticall y................... 154
Applying or releasing manually ...... 154
Displa ymessage ............................ 222
Electric parking brake .................... 153
Emergency braking ........................ 155
Genera lnotes ................................ 153
Releasing automaticall y................. 154
Warning lamp ................................. 252
Parking lamps
Switching on/of f........................... 111
PARKTRONIC
Deactivating/activating ................. 176
Driving system ............................... 174
Function/note s............................. 174
Important safety notes .................. 174
Problem (malfunction) ................... 177
Range of the sensors ..................... 175
Warning display ............................. 176
PASSENGER AI RBAG
Displa ymessage ............................ 229
Indicato rlam ps ................................ 42
Problems (malfunction) .................. 229
14Index

Sensors (cleaning instructions).......296
Service menu (on-board com-
puter) ..................................................2 11
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 347
Coolant (engine) ............................ 347
Engine oil ....................................... 346
Fuel ................................................ 344
Important safety notes .................. 344
Refrigerant (air-conditioning sys-
tem) ............................................... 348
Washer fluid ................................... 348
Settin gthe date/time format
see also Digita lOperator's Man-
ua l..................................................2 58
Settin gthe language
see also Digita lOperator's Man-
ua l..................................................2 58
Settin gthe time
see also Digita lOperator's Man-
ua l..................................................2 58
Settings
Factory (on-board computer) ......... 215
On-board computer ....................... 211
SETUP (on-board computer) ............. 216
Side impact air bag .............................4 8
Side marker lamp (display mes-
sage) ................................................... 231
Side windows
Cleaning ......................................... 295
Conveniencec losing feature ............ 88
Convenienceo pening feature ..........8 8
Important safety information ........... 87
Opening/closing .............................. 87
Problem( malfunction) .....................9 0
Resettin g......................................... 89
Reversin gfeature ............................ .87
SIRIUS services
see also Digital Operator's Man-
ual .................................................. 258
Sliding sunroof
Opening/closing .............................. 91
Resetting ... ...................................... 92
see Panorama roof with power
tilt/sliding panel SmartKey
Changing the bat
tery ....................... 77
Changing the programming .............7 6
Checkin gthe battery ...................... .77
Convenience closingf eature ............ 89
Convenience opening feature .......... 88
Display message ............................ 245
Door central locking/unlocking ...... .74
Important safety notes .................... 74
KEYLESS-GO start function .............. 76
Loss .................................................7 9
Mechanical key ................................ 76
Overview .......................................... 74
Positions (ignition lock) ................. 131
Problem (malfunction) ..................... 79
Starting the engine ........................ 133
Smartphone
Starting the engine ........................ 134
SMS
see also Digital Operator's Man-
ual .................................................. 258
Snow chains ...................................... 319
Socket (12 V)
Center console .............................. 276
General notes ................................ 276
Rear compartment. ........................276
Sound
Switching on/off ........................... 259
Special seat bel tretractor .................. 57
Specialist workshop ............................ 29
Speed, controlling
see Cruise control
Speedometer
Activating/deactivating the addi-
tional speedometer ........................ 215
Digita l............................................ 205
In the Instrument cluster ................. 34
Segments ...................................... 200
Sel

ecting the displa yunit ...............2 15
SPORT handling mode
Deactivating/activating
(Mercedes-AMG vehicles) ................ 68
Warning lamp ................................. 251
Sports exhaus tsystem
see AMG sports exhaust system
Standin glamps
Display message ............................ 231
Switching on/off ........................... 111
Index17

Protection of the environment
General notes
HEnvironmental 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 amanner
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:
Roperating conditionsofy our vehicle
Ryour personal driving style
You can influence both factors. You should
bear the following in mind:
Operating conditions:
Ravoid short trips as these increase fuel con-
sumption.
Ralways make sure that the tire pressures
are correct.
Rdo not carry any unnecessary weight.
Rremove roof racks once you no longer need
them.
Rar egularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals.
Ralways have service work carried out at a
qualified specialist workshop.
Personal driving style:
Rdo not depress the accelerator pedal when
startin gthe engine.
Rdo not warm up the engine when the vehicle
is stationary.
Rdrive carefully and maintain asafe distance
from the vehicle in front.
Ravoid frequent, sudden acceleration and
braking.
Rchange gear in good time and use each gear
only up to Ôof its maximum engine speed.
Rswitch off the engine in stationary traffic.
Rkeep an eye on the vehicle's fuel consump-
tion.
HEnvironmental note
Have adefective high-voltage battery dis-
posed of in an environmentally-responsible
manner. Contact aqualified specialist work-
shop which has the necessary specialist
knowledge and tools to carry out the work
required. Mercedes-Benz recommends that
you use an authorized Mercedes-Benz Center
for this purpose.
Environmental concerns and recom-
mendations
Wherever the operating instructions require you
to dispose of materials, first try to regenerate or
re-use them. Observe the relevant environmen-
tal rules and regulations when disposing of
materials. In this way you will help to protect the
environment.
Genuine Mercedes-Benz parts
HEnvironmental note
Daimler AG also suppliesr econditioned major
assemblies and parts which are of the same
quality as new parts. They are covered by the
same Limited Warranty entitlements as new
parts.
!Air bags and Emergency Tensioning Devi-
ces, as well as control units and sensors for
these restraint systems, may be installed in
the following areas of your vehicle:
Rdoors
Rdoor pillars
Rdoor sills
Rseats
Rcockpit
Rinstrumentc luster
Rcenter console
Genuine Mercedes-Benz parts25
Introduction
Z

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

With the help ofasensor system and acamera
system, BAS PLUS can detect obstacles:
Rthat are in the path of your vehicle for an
extended period of time
Rthat cross the path of your vehicle
In addition, pedestrians in the path of your vehi-
cle can be detected.
BAS PLUS detect spedestrians by using typical
characteristic ssuch as the body contours and
posture of aperson standin gupright.
If the radar sensor system or the camera system is malfunctioning, BAS PLUS functions are
restricted or no longer available. The brake sys-
tem is still available with completeb rake boost-
ing effect and BAS.
iObserve the restriction sdescribed in the
"Important safety notes" sec-
tion“ (
Ypage 63).
Important safety notes
GWARNING
BAS PLUS cannot alwaysc learly identify
object sand complex traffic situations.
In such cases, BAS PLUS may:
Rintervene unnecessarily
Rnot intervene
There is arisk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake. Terminat ethe
intervention in anon-critical driving situation.
GWARNING
BAS PLUS cannot alwaysc learly identifypeo-
ple, this is especially the case if they are mov-
ing. BAS PLUS cannot intervene in these
cases. There is arisk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
GWARNING
BAS PLUS does not react:
Rto small people, e.g. children
Rto animals
Rto oncoming vehicles
Rwhen cornering
As aresult, BAS PLUS may not intervene in all
critical situations. There is arisk of an acci-
dent.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
In the event of snowfall or heavy rain, the rec-
ognition can be impaired.
Recognition by the radar sensor system is also
impaired if:
Rthere is dirt on the sensor soranything else
coveringt he sensors
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 ginfrontonad ifferentline
Rvehicles quickly move into the radar sensor
system detection range
Recognition by the camera system is also
impaired in the event of:
Rdirt on the camera or if the camera is covered
Rglare on the camera system, e.g. from the sun being low in the sky
Rdarkness
Ror if:
-pedestrians move quickly, e.g. into the path
of the vehicle
-the camera system no longer recognizes a
pedestrian as aperson due to special cloth-
ing or other objects
-ap edestrian is concealed by other objects
-the typical outline of aperson is not distin-
guishable from the background
Following damage to the fronte nd of the vehicle,
have the configuration and operation of the
radar sensor schecked at aqualified specialist
workshop. This also applies to collisions at slow
speeds where there is no visible damage to the
frontoft he vehicle.
Following damage to the windshield, have the
configuration and operation of the camera sys-
tem checked at aqualified specialist workshop.
Driving safety systems63
Safety
Z

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

Activating/deactivating
The COLLISION PREVENTION ASSIST PLUSis
automatically active after switching on th eigni-
tion .
You can activat eordeactivat eCOLLISION PRE -
VENTION ASSIST PLU Sintheon-board com-
puter (
Ypage 212). When deactivated, th edis-
tance warning function and th eautonomous
braking function are also deactivated.
If COLLISION PREVENTION ASSIST PLU Sis
deactivated, th eæ symbol appear sinthe
assistanc egraphic sdisplay.
Distance warning function
Genera linformation
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.
Important safety notes
iObserv ethe "Importan tsafet ynotes "sec-
tion for drivin gsafet ysystems (Ypage 61).
GWARNIN G
The distanc ewarning function does no treact:
Rto people or animals
Rto oncomin gvehicles
Rto crossing traffic
Rwhen cornering
Thus ,the distanc ewarning function canno t
provid eawarning in all critical situations.
There is ariskofana ccident.
Always pay careful attention to th etraffic sit -
uation and be read ytob rake.
GWARNIN G
The distanc ewarning function canno talways
clearly identify objects and complex traffic
situations.
In suc hcases, th edistanc ewarning function
may:
Rgiv eanu nnecessary warning
Rnotg iveaw arning
There is ariskofana ccident.
Always pay careful attention to th etraffic sit -
uation and do no trelys olely on th edistanc e
warning function .
Function
Starting ataspee dofa pproximately 4mph
(7 km/h), th edistanc ewarning function warn s
you if you rapidly approac havehicl einfront.An
intermittent warning tone will then sound, and
th e· distanc ewarning lamp will ligh tupin
th ei nstrumen tcluster.
XBrake immediately in order to increas ethe
distanc efromt hevehicl einfront.
or
XTak eevasive action ,provided it is saf etodo
so.
Due to th enature of th esystem, particularly
complicated but non-critical drivin gconditi ons
may also caus ethe system to display awarning .
Wit hthe help of th eradar sensor system, th e
distanc ewarning function can detec tobstacles
that are in th epathofy our vehicl efor an exten-
ded period of time.
Up to aspee dofa pproximately 44 mph
(70 km/h), th edistanc ewarning function can
also reac ttostationary obstacles, suc hasstop-
ped or parked vehicles.
Aut onom ous braking function
If thedriver does no treac ttot hedistanc ewarn-
ing signal in acritical situation ,COLLISION PRE -
VENTION ASSIST PLU Scan assist wit hthe
autonomous braking function .
The autonomous braking function :
Rgives thedriver mor etimetor eacttoc ritical
drivin gsituation s
Rcan help th edriver to avoi danacciden tor
Rreduce sthe effects of an acciden t
Vehicles withou tDISTRONIC PLUS :th e
autonomous braking function is available in th e
followin gspee dranges :
R4-65m ph (7-105 km/h) for moving objects
R4-31m ph (7-50km/h) for stationary
objects
Driving safety systems65
Safety
Z

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