brake sensor MERCEDES-BENZ C-CLASS COUPE 2015 Owners Manual

Brake forc
edistribution
see EBD (electroni cbrake force
distribution)
Brake lamps
Adaptive ........................................... 71
Brakes
ABS .................................................. 66
Adaptive Brake Assist ...................... 70
BAS .................................................. 67
BAS PLU SwithC ross-Traffic
Assist ............................................... 67
Brake fluid (notes) ......................... 376
Displa ymessage ............................ 254
Driving tip s.................................... 177
High-performance brake system .... 179
Hil lstart assist ............................... 149
HOLD function ............................... 192
Important safety notes .................. 177
Parking brake ................................ 174
Warning lamp ................................. 286
Breakdown
Where will Ifind...? ........................ 334
see Fla ttyre
see Towing away
Brightness contro l(instrument
cluste rlighting) ................................... 30
Button sonthe steering column ...... 233C
Calling up afault
see Displa ymessages
Calling up the climate contro lbar
Multimedia system ........................ 300
Calling up the climate control
menu
Multimedia system ........................ 300
Car
see Vehicle
Car was h(care) ................................. 327
Care
360° camera ................................. 330
Automati ccar wash ....................... 327
Carpets .......................................... 333
Displa y........................................... 331
Exhaus tpipe. ................................. 331
Exterior lighting ............................. 330
Gear or selector lever .................... 332 Genera
lnotes ................................ 326
High-pressure cleane r.................... 328
Interior ........................................... 331
Matt paintwork .............................. 329
Paint .............................................. 328
Plastic trim .................................... 331
Reversing camera .......................... 330
Roof lining ...................................... 333
Sea tbelt. ....................................... 332
Sea tcove r..................................... 332
Sensors ......................................... 330
Steering whee l............................... 332
Tri mp iece s.................................... 332
Washing by hand ........................... 327
Wheel s........................................... 329
Window s........................................ 329
Wipe rblade s.................................. 329
Woode ntrim .................................. 332
CD
See also Digital Owner' sManual... 296
CD player (on-board computer) ........ 241
Central locking
Locking/unlocking (key) .................. 81
Centre console
Lower section ............................ 35, 36
Upper section .................................. 34
Changin gbulbs
Dipped-bea mheadlamp s............... 124
Main-bea mheadlamp s................... 124
Turn signals (front) ......................... 125
Changin gthe medi asource ............. 240
Charge-air pressure (on-board
computer, Mercedes-AMG vehi-
cles) .................................................... 249
Child
Restraint system .............................. 56
Child seat
Forward-facing restraint system ...... 60
i-Size ................................................ 57
ISOFIX .............................................. 57
On the front-passenger sea t............ 59
Rearward-facing restraint system .... 60
Recommendations ........................... 64
Suitable positions ............................ 60
Top Tether ....................................... 58
Cigarette lighter ................................ 316
Cleaning
Mirror turn signal ........................... 330 6
Index

Parking brake ................................ 174
Position of exterior mirror, front-
passenger side ...............................1 15
Reversing camera .......................... 206
Switching off the engine ................ 173
see PARKTRONIC
Parking aid
see 360° camera
see Active Parking Assist
see Exterior mirrors
see PARKTRONIC
see Reversing camera
Parking assistance
see PARKTRONIC
Parking brake
Applying automatically (vehicles
with automatic transmission) ......... 174
Applying automatically (vehicles
with manual transmission) ............. 175
Applying or releasing manually ...... 174
Display message ............................ 256
Electric parking brake .................... 174
Emergency braking ........................ 175
General information ....................... 174
Releasing automatically ................. 175
Warning lamp ................................. 290
Parking lamps
Display message ............................ 265
Switching on/off ........................... 119
PARKTRONIC
Deactivating/activating ................. 200
Driving system ............................... 197
Function/notes ............................ .197
Important safety notes .................. 197
Problem (fault) ............................... 201
Sensor range ................................. 198
Trailer towing ................................. 197
Warning displa y............................. 199
PASSENGER AI RBAG
Displa ymessage ............................ 263
Indicato rlam ps ................................ 40
Problems (malfunctions )................ 263
Perfume atomiser
Setting the perfume intensity
(multimedia system) ...................... 300
Via l................................................ 136
Perfume atomizer
Operating ....................................... 136 Problem (malfunction) ................... 138
Pets in the vehicle ............................... 66
Phone book
See also Digital Owner' sManual... 296
Plasti ctrim (cleaning instruc-
tions) .................................................. 331
Powe rwindows
see Sid ewindows
PRE-SAFE ®
(anticipatory occupant
protection)
Operation ......................................... 54
PRE-SAFE ®
(preventive occupant
safety system)
Displa ymessage ............................ 260
PRE-SAFE ®
Brake
Activating/deactivating ................. 245
Displa ymessage ............................ 260
Function/note s................................ 75
Important safety notes .................... 76
Warning lamp ................................. 293
PRE-SAFE ®
PLUS (anticipatory
occupant protection PLUS)
Operation ......................................... 54
Protectio nagainst theft
ATA (Anti-Theft Alarm system )......... 78
Immobiliser ...................................... 77
Interior motion sensor ..................... 79
Tow-away protectio n........................ 78
Protectio nofthe environment
Genera lnotes .................................. 25
Pulling away
Automati ctransmission ................. 148
Genera lnotes ................................ 148
Hil lstart assis t............................... 149
Manua ltransmission ...................... 148
Trailer ............................................ 148 Q
QR code Mercedes-Benz Guid eApp ................. 1
Rescu ecard ..................................... 28
Qualified specialist workshop ........... 28
Quick acces sfor audio and tele-
phone
Changing the station/music
track .............................................. 299 16
Index

Safety system
see Driving safety systems
SD memory card
Ejecting .......................................... 307
Inserting ........................................3 07
Inserting/removing ........................ 307
See also Digita lOwner' sManual ... 296
Selecting ........................................ 241
Seat
Adjusting (Performance Seat) ....... .107
Seat backres tdispla ymessage ..... 281
Seat belt
Correct usage .................................. 42
Seat belts
Adjusting the driver's and front-
passenger sea tbelt. ........................ 44
Cleaning ......................................... 332
Fastening ......................................... 43
Important safety guideline s............. 41
Introduction ..................................... 41
Rear sea tbelts tatus indicator ......... 44
Releasing ......................................... 44
Warning lamp ................................. 285
Warning lamp (function) ................... 44
Seats
Adjusting (electrically) ................... 104
Adjusting (manuall yand electri-
cally ).............................................. 104
Adjusting the 4-wa ylum bars up-
por t................................................ 107
Adjusting the hea drestraint .......... 105
Calling up astore dsetting (mem-
ory function) .................................. 117
Cleaning the cove r......................... 332
Correct driver' sseatp osition ........ 102
Folding the backrests forward/
back ............................................... 106
Important safety notes .................. 102
Sea theating .................................. 108
Sea theating problem .................... 110
Storing settings (memory func-
tion) ............................................... 116
Switching sea theating on/of f....... 108
Switching the sea tventilation on/
off .................................................. 108
Securing aload
see Stowag espace
Securing luggage ............................... 312 Selecto
rlever
Cleaning ......................................... 332
see Automati ctransmission
Sensors (cleaning instructions) ....... 330
Service
see ASSYST PLUS
Servic eCentre
see Qualifie dspecialist workshop
Servic emenu( on-board com-
puter) .................................................. 244
Servic emessage
see ASSYST PLUS
Servic eproducts
AdBlue ®
specia laddit ives.............. 374
Brake fluid ..................................... 376
Coolant (engine) ............................ 376
Engine oi l....................................... 375
Fue l................................................ 371
Important safety notes .................. 371
Washe rfluid ................................... 377
Setting the date/time format
See also Digital Owner' sManual... 296
Setting the language
See also Digital Owner' sManual... 296
Setting the time
See also Digital Owner' sManual... 296
Settings
Factory (on-board computer) ......... 249
On-board compute r....................... 244
SETUP (on-board computer) ............. 250
Shiftin gtoneutral (manual trans-
mission) ............................................. 156
Side lamps
Switching on/of f........................... 119
Side windows
Convenience closing ........................ 94
Convenience opening ...................... 94
Important safety notes .................... 93
Opening/closing .............................. 94
Problem (malfunction) ..................... 96
Resetting ......................................... 95
Reversing feature ............................. 93
Sidebag ................................................ 46
Sliding sunroof
Opening/closing .............................. 97
Rain closing feature ......................... 98
Resetting ......................................... 98 18
Index

Protection of the environment
General notes
H
Environmental note
Daimler's declared policy is one of compre-
hensive environmental protection.
Our objectives are to use the natural resour-
ces which form the basis of our existence on
this planet sparingly and in amanner which
takes the requirements of both nature and
humanity into consideration.
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 tyre wear depend on
the following factors:
R operating condition sofyour vehicle
R your personal driving style
You can influence both factors. Therefore,
please bear the following in mind:
Operating conditions:
R avoid short trips, as these increase fuel
consumption.
R observe the correct tyre pressure.
R do not carry any unnecessary weight in the
vehicle.
R remove the roof rack once you no longer
need it.
R ar egularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals.
R all maintenance work should be carried out
at aq ualified specialist workshop.
Personal driving style:
R do not depress the accelerator pedal when
startingt he engine.
R do not warm up the engine when the vehicle
is stationary.
R drive carefully and maintain asafe distance
from the vehicle in front.
R avoid frequent, sudden acceleration and
braking. R
change gear in good time and use each gear
only up to Ôof its maximum engine speed.
R switch off the engine in stationary traffic.
R monitor the vehicle's fuel consumption. H
Environmental note
Have defective high-voltage batteries dis-
posed of in an environmentally responsible
manner. Consult aqualified specialist work-
shop which has the necessary specialist
knowledge and tools to carry out the work
required. Mercedes-Benz recommends that
you use aMercedes-Benz Service Centre for
this purpose. Returning an end-of-life vehicle
EU countries only:
Mercedes-Benz will take back your old vehicle to
dispose of it in an environmentally-responsible
manner in accordance with the European Union (EU) End of Life Vehicles Directive.
There is anetwork of return points and disas-
sembly plants available. You can return your
vehicle to these plants free of charge. This
makes avaluable contribution to the recycling
process and the conservation of resources.
For further information on recycling old vehi-
cles, recovery and the terms of the policy, visit
the Mercedes-Benz homepage. Genuine Mercedes-Benz parts
H
Environmental note
Daimler AG also suppliesr econditioned
assemblies and parts which are of the same
quality as new parts. For these, the same war-
ranty appliesasf or new parts.
! Airbags and seat belt tensioners, as well as
control units and sensors for these restraint
systems, may be installed in the following
areas of your vehicle:
R doors
R door pillars
R door sills Genuine Mercedes-Benz parts
25Introduction Z

Important safety notes
The intervention of PRE-SAFE
®
PLU Scannot
preven tanimminent collision.
The driver is no twarned before th eintervention
of PRE-SAFE ®
PLUS.
PRE-SAFE ®
PLU Sdoes no tintervene:
R if th evehicl eisr eversing
R when th evehicl eist owingat railer and there
is ar iskofar ear-end collision
When driving ,orwhen parking or exiting apark-
ing spac ewitha ssistanc efromA ctiveParking
Assist ,PRE-SAFE ®
PLU Swill no tapply the
brakes.
Function PRE-SAFE
®
PLU Sintervenes in certain situa-
tion sift heradar sensor system detects an
imminent head-on or rear-end collision.
PRE-SAFE ®
PLU Stakes th efollowin gmeasures
depending on th ehazardous situation detected:
R if th eradar sensor system detects that a
head-on collision is imminent ,the seat belts
are pre-tensioned
R if th eradar sensor system detects that arear-
en dc ollision is imminent:
- ther ear hazard warning lamp sare activa-
te da nd flas hatah igher frequency
- theb rak epressur eisincreased if th edriver
applie sthe brakes when th evehicl eiss ta-
tionary
- thes eat belt sare pre-tensioned
The PRE-SAFE ®
PLU Sbraking application is can-
celled:
R if th eaccelerato rpedal is depressed when a
gear is engaged
R if th eriskofac ollision passes or is no longer
detected
R if 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 efollowing
measures are implemented, depending on the
typ eand severity of th eimpact:
R theh azard warning lamp sare activated
R thee mergenc ylighting is activated
R thev ehicl edoor sare unlocked
R thef ront side windows are lowered
R vehicles wit hamemory function :the electri-
call yadjustable steering whee lisraised
R thee ngineiss witched off and th efuel supply
is cut off
R vehicles wit hthe Mercedes-Ben zemergency
call system: automatic emergenc ycall Children in th
evehicle Important safety notes
Acciden tstatistics sho wthatc hildren secured
in th erear seat sare safer than children secured
in th efront seats. Fo rthisr eason ,Mercedes-
Ben zstrongly advises that you fit achild
restrain tsystem on arear seat .Children are
generally bette rprotected there.
If ac hild younger than twelve years old and
under 1.50 minh eight is travellin ginthe vehi-
cle:
R always secur ethe child in achild restraint
system suitable for Mercedes-Ben zvehicles.
The child restraint system must be appropri-
ate to the age, weight and size of the child.
R be sure to observe the instructions and safety
notes in this section in addition to the child
restraint system manufacturer' sinstallation
instructions.
R always pay attention to the instructions and
safet ynotes on the automatic co-driver's
front airbag deactivation system (Y page 47). Children in thev
ehicle
55Safety Z

tivated
.There is an increase ddangerofs kid-
ding and accidents.
Drive on carefully. Hav eABS checked imme-
diately at aquali fied specialis tworkshop.
If ABS is malfunctioning ,othe rsystems, includ-
ing drivin gsafety systems, will also become
inoperative .Obser ve the information on the ABS
warning lamp (Y page 287)and displa ymes-
sage swhich ma ybeshown in the instrument
cluste r(Ypage 254).
Brakes X
If ABS intervenes: continue to depress the
brake peda lwithf orce unti lthe braking sit-
uatio niso ver.
X To make afullb rak eapplication: depress
the brake peda lwithf ullf orce.
If ABS intervenes when braking ,you will fee la
pulsing in the brake pedal.
The pulsating brake peda lcan be an indication
of hazardous roa dconditions ;thiss erve sasa
reminder to take extra car ewhile driving. BAS (Brak
eAssis t)
General notes BAS operates in emergency braking situations.
If yo udepress the brake peda lquickly, BAS
automaticall yboosts the braking force, thus
shortening the stopping distance.
Important safety notes i
Observe the "Important safety notes" sec-
tio n(Ypage 66). G
WARNING
If BAS is malfunctioning ,the braking distance
in an emergency braking situatio nis
increased. There is ariskofa ccident.
In an emergency braking situation, depress
the brake peda lwithf ullf orce. ABS prevents
the wheels fro mlocking. Braking X
Kee pthe brake peda ldep resse dfirml yuntil
the emergency braking situatio niso ver.
ABS prevents the wheels fro mlocking.
Th eb rakes will functio nasusual once you
release the brake pedal. BAS is deactivated. BAS PLUS (Brake Assist System
PLUS
)withC ross-Traffic Assist
General notes BAS PLU
Scan help yo utominimise th eriskofa
collision with avehicl eorap edestrian and
reduce the effects of such acollision. If BAS
PLU Sdetects adangerofc ollision, yo uare
assiste dwhenb raking.
i Pa
ya ttentio ntothe important safety notes
in the "Driving safety systems" section
(Y page 66).
BAS PLU Siso nlya vailable on vehicles with the
Drivin gAssistance package.
For BAS PLU Stoassistyou when driving, the
rada rsensors ystema nd the camera system
must be operational.
With the help of asensors ystema ndacamera
system, BAS PLU Scan detect obstacles:
R tha tare in the path of your vehicl efor an
extende dperiodoft ime
R tha tcros sthe path of your vehicle
In addition, pedestrians in the path of your vehi-
cle can be detected.
BAS PLU Sdetects pedestrians using typical
characteristics such as the body contour sand
posture of aperso ns tanding upright.
If the rada rsen sorsystemort he camera system
is malfunctioning ,BAS PLU Sfunctions are
restricted or no longe ravailable. The brake sys-
tem is still availabl ewithc omplete brake boost-
ing effect and BAS.
i Observe the restrictions describe
dinthe
"Important safety notes" section
(Y page 68). Driving safet
ysystems
67Safety Z

At speed
sofuptoa pproximatel y70km/h,BAS
PLU Scan react to:
R stationar yobjects in the path of your vehicle,
e.g .stoppe dorp arked vehicles
R pedestrians in the path of your vehicle
R obstacle scrossing your path, which move in
the detection range of the sensors and are
detected
i If BAS PLU
Sdeman ds particularly high brak-
ing force, preventative passenge rprotection
measures (PRE-SAFE ®
)a re activated simulta-
neously (Y page 54).
X Kee pthe brake peda ldep resse duntilthe
emergency braking situatio niso ver.
ABS prevents the wheels from locking.
BAS PLU Sisdeactivated and the brakes func-
tio na susual againif:
R your elease the brake pedal
R ther eisnol ongerar iskofc ollision
R no obstacle is detecte dinfront of your vehicle
R youd epress the accelerator pedal
R youa ctivate kickdown COLLISIO
NPREVENTION ASSIST
PLUS
General notes i
Observ
ethe "Important safety notes "sec-
tio n(Ypage 66).
COLLISION PREVENTION ASSIST PLU Sconsists
of ad istance warning functio nwithana utono-
mou sbraking functio nand Adaptive Brake
Assist.
COLLISION PREVENTION ASSIST PLU Scan help
yo utom inimisethe ris kofa collision with the
vehicl einfront or reduce the effects of such a
collision.
If COLLISION PREVENTION ASSIST PLUS
detects tha tther eisar iskofa collision, yo uwill
be warned visuall yand acoustically. If yo udonot
react to the visua land audibl ecollision warning,
autonomou sbraking can be initiated in critical
situations. If yo uapply the brake yoursel fina
critical situation, the COLLISION PREVENTION
ASSIST PLU SAdaptive Brake Assist assists you. Important safety notes In particular, the detection of obstacle
scan be
impaired in the cas eof:
R dirt on the sensors or obscured sensors
R snow or heavy rain
R interference by othe rradar sources
R strong rada rreflections, for example, in multi-
storey car parks
R an arrow vehicl etravelling in front, e.g .a
motorcycle
R av ehicl etravelling in front on adifferent line
R new vehicles or afte raservice on the COLLI-
SION PREVENTION ASSIST PLU Ssystem
Observ ethe important safety notes in the
"Running-i nnotes "sectio n(Ypage 144).
Following damage to the front end of the vehicle,
have the configuratio nand operatio nofthe
rada rsensor checked at aquali fied specialist
workshop .Thisa lsoa pplies to collisions at slow
speed swhere ther eisnov isible damage to the
front of the vehicle.
Activating/deactivating The COLLISION PREVENTION ASSIST PLU
Sis
automaticall yactive afte rswitching on the igni-
tion.
Yo uc an activate or deactivate COLLISION PRE-
VENTION ASSIST PLU Sinthe on-board com-
puter (Y page 245). Whe ndeactivated ,the dis-
tance warning functio nand the autonomous
braking functio narealso deactivated.
If COLLISION PREVENTION ASSIST PLU Sis
deactivated ,the æ symbo lappears in the
assistance graphics display.
Distance warning function General notes
The distance warning functio ncan hel pyou to
minimis ethe ris kofa collision with the vehicl ein
front or reduce the effects of such acollision. If
the distance warning functio ndetects tha tthere
is ar iskofa collision, yo uwillbew arned visually
and acoustically.
Important safety notes
i Observ
ethe "Important safety notes "sec-
tio nfor driving safety system s(Ypage 66). Driving safety systems
69Safety Z

G
WARNING
The distance warning function does not react:
R to people or animals
R to oncoming vehicles
R to crossing traffic
R when cornering
Thus ,the distance warning function cannot
provid eawarning in all critical situations.
There is arisk of an accident.
Always pay carefu lattention to the traffic sit-
uation and be read ytobrake. G
WARNING
The distance warning function cannot always
clearly identify objects and comple xtraffic
situations.
In such cases, the distance warning function
may:
R give an unnecessary warning
R not give awarning
There is arisk of an accident.
Always pay carefu lattention to the traffic sit-
uation; do not rely on the distance warning
function alone.
Function The distance warning function issues awarning
at speeds:
R of approximately 30 km/h or more, if, over
severa lseconds, the distance maintained to
the vehicl etravelling in front is insufficient.
The · distance warning lamp then lights
up in the instrument cluster.
R of approximately 7km/h or more, if you rap-
idlya pproach avehicl einf ront. An intermit-
tent warning tone willt hen sound,and the
· distance warning lamp willl ight up in the
instrument cluster.
X Brake immediatel yinorder to increas ethe
distance from the vehicl einfront.
or
X Take evasive action provided it is safe to do
so.
Due to the nature of the system, particularly
complicated but non-critical driving conditions
may alsoc ausethe system to display awarning. With the help of the rada
rsensor system, the
distance warning function can detect obstacles
that are in the path of yourv ehiclefor an exten-
ded period of time.
Up to aspee dofa pproximatel y70k m/h, the
distance warning function can alsor eact to sta-
tionary obstacles, such as stoppe dorparked
vehicles.
Autonomous braking function If the drive
rdoes not react to the distance warn-
ing signa linacritical situation, COLLISION PRE-
VENTION ASSIST PLUS can assist with the
autonomous braking function.
The autonomous braking function:
R gives the drive rmore time to react to critical
driving situations
R can help the drive rtoavoidana ccident or
R reduces the effects of an accident
Vehicles without DISTRONIC PLUS: the
autonomous braking function is available in the
following spee dranges:
R 7-1 05 km/h for moving objects
R 7-50k m/h for stationary objects
Vehicles with DISTRONIC PLUS: the autono-
mous braking function is available in the follow-
ing spee dranges:
R 7-2 00 km/h for moving objects
R 7-50k m/h for stationary objects
Due to the nature of the system, complicated
but non-critical driving situations may also
caus ethe autonomous braking function to inter-
vene.
If the autonomous braking function demands
particularl yhigh braking force, preventative
passenger protection measures (PRE-SAFE ®
)
are activated simultaneously (Y page54).
Adaptive Brake Assist General notes
i Observe the "Important safety notes" sec-
tion (Y page66).
With the help of Adaptive Brake Assist, the dis-
tance warning signa lcan detect obstacles that
are in the path of yourv ehiclefor an extended
period of time.
If Adaptive Brake Assist detects arisk of acol-
lision with the vehicl einfront, it calculates the 70
Driving safety systemsSafety

brakin
gforc enecessary to avoid acollision. If
you apply the brakes forcefully, Adaptiv eBrake
Assist will automatically increase the braking
forc etoal evel suitable for the traffic conditions.
Adaptiv eBrakeA ssist provides brakin gassis-
tanc einh azardous situation satspeeds above
7k m/h. It uses radar sensor technology to
assess the traffic situation.
Up to aspeed of approximately 250 km/h,
Adaptiv eBrakeA ssist is capable of reacting to
movin gobjects that have already been detected
as such at least onc eover the period of obser-
vation.
Up to aspeed of approximately 70 km/h, Adap-
tive Brak eAssist react stostationary obstacles.
If Adaptiv eBrakeA ssist demands particularly
high brakin gforce, preventativ epassenger pro-
tection measures (PRE-SAFE ®
)a re activated
simultaneously (Y page 54).
X Keep the brake pedal depressed until the
emergency brakin gsituation is over.
ABSp revents the wheels from locking.
The brakes will work normally again if: R you release the brake pedal
R ther eisnol onger any danger of acollision
R no obstacle is detected in fron tofyour vehicle
Adaptiv eBrakeA ssist is then deactivated.
Important safet ynotes
i Observe the "Important safety notes" sec-
tion for driving safety systems (Y page 66).G
WARNING
Adaptiv eBrakeA ssist cannot always clearly
identify objects and complex traffic situa-
tions.
In such cases, Adaptiv eBrakeA ssist can:
R interven eunnecessarily
R not 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. G
WARNING
Adaptiv eBrakeA ssist does not react:
R to people or animals
R to oncoming vehicles
R to crossing traffic
R when cornering
As aresult, the Adaptiv eBrak eAssist may not
interven einall critical conditions. There is a
risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake.
Due to the natur eofthe system, particularly
complicated but non-critical driving conditions
may also cause Brak eAssist to intervene.
If Adaptiv eBrak eAssist is not available due to a
malfunction in the radar sensor system, the
brake system remains available with full brake
boostin geffec tand BAS. Adaptive brake lights
The adaptive brake lights warn following traffic
in an emergency brakin gsituation:
R by flashing brake lamps
R by activating the hazard warning lamps
If you brake sharply from aspeed of more than
50 km/ horifb raking is assisted by BAS or BAS
PLUS, the brake lamp sflashr apidly.Int his way,
traffic travelling behind you is warned in an even more noticeable manner.
If you brake sharply from aspee dofm ore than
70 km/h to astandstill, the hazard warning
lamp sare activated automatically. If the brakes
are applieda gain, the brake lamp slight up con-
tinuously.T he hazard warning lamp sswitch off
automatically if you travel faster than 10 km/h. You can alsos witch off the hazard warning
lamp susing the hazard warning button
(Y page1 20). ESP
®
(Electronic Stability Program)
General notes i
Observe the "Important safety notes" sec-
tion (Y page66). Driving safety systems
71Safety Z

Important safety notes
G
WARNING
PRE-SAFE ®
Brake will initially brak eyour vehi-
cle by apartial application of th ebrakes if a
danger of collision is detected. Ther emay be
ac ollision unless you brak eyourself .Even
after subsequen tfull application of th ebrakes
ac ollision canno talways be avoided, partic-
ularly when approachin gattoohigh aspeed.
Ther eisar iskofana ccident.
Always apply th ebrakes yourself and tr yto
tak eevasive action ,provide ditiss afetodo
so.
In th eevent of apartial application of th ebrakes,
th ev ehicl eisb raked wit hupto50%of th efull
braking pressure. G
WARNING
PRE-SAFE ®
Brake canno talways clearly iden-
tify objects and comple xtraffic conditions.
In these cases, PRE-SAFE ®
Brake may:
R giv eanu nnecessary warning and then
brak ethe vehicle
R neither giv eawarning no rintervene
Ther eisar iskofana ccident.
Always pay particular attention to th etraffic
situation and be read ytob rake, especially if
PRE-SAFE ®
Brake warn syou. Terminate the
intervention in anon-criti cal driving situation. G
WARNING
PRE-SAFE ®
Brake canno talways clearly iden-
tify people, especially if they are moving .In
these cases, PRE-SAFE ®
Brake canno tinter-
vene. Ther eisariskofana ccident.
Always pay particular attention to th etraffic
situation and be read ytob rake, especially if
PRE-SAFE ®
Brake warn syou.
In order to maintai nthe appropriat edistanc eto
th ev ehicl einf rontand thus preven tacollision,
you must apply th ebrakes yourself. G
WARNING
PRE-SAFE ®
Brake does no treact:
R to small people, e.g. children
R to animals
R to oncomin gvehicles
R to crossing traffic
R when cornering
As aresult ,PRE-SAFE ®
Brake may neither
giv ew arning snorinterven einall critical sit-
uations. Ther eisariskofana ccident.
Always pay careful attention to th etraffic sit-
uation and be read ytob rake.
In th eevent of snowfall or heav yrain ,detection
can be impaired.
Detection by th eradar sensor system is also
impaire dintheevent of:
R dirt on th esensor soro bscured sensors
R interferenc ebyother radar sources
R stron gradar reflections, for example, in multi-
store ycar parks
R an arrow vehicl etravellin ginfront,e.g.a
motorcycle
R av ehicl etravellin ginfrontonadifferen tline
Detection by th ecamera system is also impaired
in th eevent of:
R dirt on th ecamera or if th ecamera is covered
R glar eont hecamera system, e.g. from th esun
bein glow in th esky
R darkness
R if:
- pedestrian smoveq uickly, e.g. int othe path
of th evehicle
- thec amera system no longer detects a
pedestrian as aperson due to special cloth-
ing or other objects
- ap edestrian is concealed by other objects
- thet ypical outlin eofaperson is no tdistin-
guishable from th ebackground
Followin gdamag etothefron tend of th evehicle,
have th eradar sensor setting sand operation
checke dataq ualified specialist workshop. This
also applie stocollision sats low speeds where
there is no visible damag etothefron toft he
vehicle. 76
Driving safety systemsSafety