sensor MERCEDES-BENZ SL ROADSTER 2018 Owner's Manual

Exhaust pipe .................................. 268
Exterior lights ................................ 267
Matte finish ................................... 265
Notes ............................................. 263
Paint .............................................. 265
Power washer ................................ 264
Rear view camera .......................... 267
Sensors ......................................... 267
Washing by hand ........................... 264
Wheels ........................................... 266
Windows ........................................ 266
Wiper blades .................................. 267
CD
see also Digital Operator's Man-
ual .................................................. 236
CD player (on-board computer) ........ 191
Center console
Lower section .................................. 36
Lower section (AMG vehicles) .......... 37
Upper section .................................. 35
Central locking
Automatic locking (on-board com-
puter) ............................................. 196
Locking/unlocking (SmartKey) ........ 73
Child
Restraint system .............................. 58
Child seat
Forward-facing restraint system ...... 59
On the front-passenger seat ............ 59
Rearward-facing restraint system .... 59
Children
Special seat belt retractor ............... 57
Children in the vehicle
Important safety notes .................... 56
Cigarette lighter ................................ 247
Cleaning
Mirror turn signal ........................... 267
Climate control
Automatic climate control (dual-
zone) .............................................. 113
Controlling automatically ............... 116
Cooling with air dehumidification .. 115
Defrosting the windows ................. 118
Defrosting the windshield .............. 117
General notes ................................ 113
Indicator lamp ................................ 116
Information about using auto-
matic climate control ..................... 114 Maximum cooling .......................... 118
Overview of systems ...................... 113
Problem with the rear window
defroster ........................................ 118
Problems with cooling with air
dehumidification
............................ 116
R

efrigerant ..................................... 316
Refrigerant filling capacity ............. 317
Setting the air distribution ............. 117
Setting the air vents ...................... 119
Setting the airflow ......................... 117
Setting the climate mode (AIR
FLOW) ............................................ 116
Setting the temperature ................ 116
Switching air-recirculation mode
on/off ............................................ 118
Switching on/off ........................... 115
Switching residual heat on/off ...... 119
Switching the rear window
defroster on/off ............................ 118
Switching the ZONE function
on/off ............................................ 117
Cockpit
Overview .......................................... 32
see Instrument cluster
COMAND
Driving dynamics display (except
Mercedes-AMG vehicles) ....... 163, 165
Driving dynamics display
(Mercedes-AMG vehicles) .............. 167
Combination switch .......................... 107
Compass
Calibrating ..................................... 256
Calling up ....................................... 255
Setting ........................................... 256
Connecting a USB device
see also Digital Operator's Man-
ual .................................................. 236
Consumption statistics (on-board
computer) .......................................... 188
Controller ........................................... 237
Convenience closing feature .............. 87
Coolant (engine)
Checking the level ......................... 260
Display message ............................ 213
Filling capacity ............................... 316
Important safety notes .................. 315
Index7

General notes ................................ 159
Home address
see also Digital Operator's Man-
ual .................................................. 236
Hood
Closing .......................................... .259
Display message ............................ 224
Important safety notes .................. 258
Opening ......................................... 258
Horn ...................................................... 32
Hydroplaning ..................................... 148
I
Ignition lock
see Key positions
Immobilizer .......................................... 71
Indicator lamps
see Warning and indicator lamps
Indicators
see Turn signals
Instrument cluster
Overview .......................................... 33
Instrument cluster lighting .............. 185
Interior lighting
Automatic control .......................... 110
Delayed switch-off (on-board
computer) ...................................... 196
Overview ........................................ 109
Reading lamp ................................. 109
Setting the brightness of the
ambient lighting (on-board com-
puter) ............................................. 195
Setting the color of the ambient
lighting (on-board computer) ......... 195
iPod
®
see also Digital Operator's Man-
ual ..................................................2 36
J
Jack
Storage location ............................ 271
Using ............................................. 305
Jump starting (engine) ......................278
K
Key positions
KEYLESS-GO .................................. 122
SmartKey ....................................... 122
KEYLESS-GO
Activating ......................................... 73
Convenience closing feature ............ 87
Deactivation ..................................... 73
Display message ............................ 226
Locking ............................................ 73
Removing the Start/Stop button ... 123
Start/Stop button .......................... 122
Starting the engine ........................ 124
Unlocking ......................................... 73
Kickdown
Driving tips ....................................1 34
Manual gearshifting ....................... 139
Knee bag .............................................. 46
L
Lamps
see Warning and indicator lamps
Lane Keeping Assist
see Active Lane Keeping Assist
Lap time (RACETIMER) ......................198
License plate lamp (display mes-
sage) ................................................... 212
Light function, active
Display message ............................ 212
Light sensor (display message) ....... 212
Lights
Activating/deactivating the inte-
rior lighting delayed switch-off ....... 196
Active light function ....................... 108
Automatic headlamp mode ............ 106
Cornering light function ................. 108
Hazard warning lamps ................... 108
High beam flasher .......................... 107
High-beam headlamps ................... 107
Light switch ................................... 106
Low-beam headlamps .................... 107
Parking lamps ................................ 107
Setting the brightness of the
ambient lighting (on-board com-
puter) ............................................. 195
12Index

OperationDigital Operator's Manual ............... .23
Operator's Manual
Vehicle equipment ........................... 25
Outside temperature display ........... 185
Overhead control panel ......................38
P
Paddle shifters
see Steering wheel paddle shifters
Paint code number ............................311
Paintwork (cleaning instructions) ... 265
Panic alarm .......................................... 40
Panoramic roof
Operating the roller sunblind ........... 93
Parking
Important safety notes .................. 142
Parking brake ................................ 142
Position of exterior mirror, front-
passenger side ............................... 104
Rear view camera .......................... 174
see PARKTRONIC
Parking aid
Parking Pilot .................................. 170
see Exterior mirrors
see PARKTRONIC
Parking Assist PARKTRONIC
Deactivating/activating ................. 169
Important safety notes .................. 167
Problems (malfunctions) ................ 170
Sensor range ................................. 168
Warning display ............................. 169
Parking brake
Applying automatically ................... 143
Applying or releasing manually ...... 143
Display message ............................ 203
Electric parking brake .................... 142
Emergency braking ........................ 144
General notes ................................ 142
Releasing automatically ................. 143
Warning lamp ................................. 231
Parking lamps
Switching on/off ........................... 107
Parking Pilot
Canceling ....................................... 173
Detecting parking spaces .............. 171
Display Message ............................ 218 Exiting a parking space .................. 173
Function/notes ............................. 170
Important safety notes .................. 170
Parking .......................................... 172
PARKTRONIC
Driving system ............................... 167
Function/notes ............................. 167
PASSENGER AIR BAG
Display message ............................ 210
Indicator lamps ................................ 41
Problems (malfunction) .................. 210
Pets in the vehicle ............................... 59
Phone book
see also Digital Operator's Man-
ual .................................................. 236
Power locks ......................................... 80
Power washers .................................. 264
Power windows
see Side windows
PRE-SA FE
®(anticipatory occupant
protection)
Display message ............................ 206
Operation ......................................... 55
PRE-SAFE
®PLUS (anticipatory
occupant protection PLUS)
Operation ......................................... 56
Protection against theft
ATA (Anti-Theft Alarm system) ......... 72
Immobilizer ...................................... 71
Protection of the environment
General notes .................................. 24
Pulling away
General notes ................................ 124
Pulling away (automatic transmis-
sion) .................................................... 124
Q
QR code
Mercedes-Benz Guide App ................. 1
Rescue card ..................................... 29
Qualified specialist workshop ........... 28
R
RACE START
Important safety notes .................. 161
Index15

SD memory cardsee also Digital Operator's Man-
ual .................................................. 236
Selecting ........................................1 91
Search & Send
see also Digital Operator's Man-
ual ..................................................2 36
Seat
Correct driver's seat position ........... 95
Seat belts
Adjusting the driver's and front-
passenger seat belt ......................... 44
Correct usage .................................. 43
Fastening ......................................... 44
Important safety guidelines ............. 42
Introduction ..................................... 41
Releasing ......................................... 44
Seat belt guide ................................. 97
Switching belt adjustment on/off
(on-board computer) ...................... 197
Warning lamp ................................. 227
Warning lamp (function) ................... 44
Seats
Adjusting (electrically) ..................... 97
Adjusting the head restraint ............ 98
Belt guide ......................................... 97
Important safety notes .................... 95
Overview .......................................... 95
Seat heating problem ...................... 99
Seat ventilation problem ................ 100
Sliding forward/back ....................... 98
Storing settings (memory func-
tion) ............................................... 105
Switching AIRSCARF on/off .......... 100
Switching seat heating on/off ......... 99
Switching seat ventilation on/off .... 99
Selector lever
Positions ........................................ 130
Sensors (cleaning instructions) ....... 267
Service menu (on-board com-
puter) .................................................. 194
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 315
Coolant (engine) ............................ 315
Engine oil ....................................... 314
Fuel ................................................ 313 Important safety notes .................. 312
Refrigerant (air-conditioning sys-
tem) ............................................... 316
Washer fluid ................................... 316
Setting the air distribution ............... 117
Setting the airflow ............................ 117
Se

tting the date/time format
see also Digital Operator's Man-
ual .................................................. 236
Setting the language
see also Digital Operator's Man-
ual .................................................. 236
Setting the time
see also Digital Operator's Man-
ual .................................................. 236
Settings
Factory (on-board computer) ......... 197
On-board computer ....................... 194
SETUP (on-board computer,
Mercedes-AMG vehicles) .................. 198
Side impact air bag ............................. 46
Side marker lamp (display mes-
sage) ................................................... 212
Side windows
Cleaning ......................................... 266
Convenience closing feature ............ 87
Important safety information ........... 85
Opening/closing (all) ....................... 87
Opening/closing (front) ................... 86
Opening/closing (rear) .................... 86
Overview .......................................... 85
Problem (malfunction) ..................... 88
Resetting ......................................... 88
Reversing feature ............................. 86
SIRIUS services
see also Digital Operator's Man-
ual .................................................. 236
SmartKey
Changing the battery ....................... 76
Changing the programming ............. 74
Checking the battery ....................... 76
Display message ............................ 225
Door central locking/unlocking ....... 73
Important safety notes .................... 73
Loss ................................................. 77
Mechanical key ................................ 75
Opening/closing the roof ................ 90
Index17

Protecting 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 a manner
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 conditions of your 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.
Ra regularly 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
starting the engine.
Rdo not warm up the engine when the vehicle
is stationary.
Rdrive carefully and maintain a safe 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.
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 supplies reconditioned 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
Rinstrument cluster
Rcenter console
Do not install accessories such as audio sys-
tems in these areas. Do not carry out repairs or welding. You could impair the operating
efficiency of the restraint systems.
Have aftermarket accessories installed at a
qualified specialist workshop.
You could jeopardize the operating safety of
your vehicle if you use parts, tires and wheels as
well as accessories relevant to safety which
have not been approved by Mercedes-Benz. This
could lead to malfunctions in safety-relevant
24Genuine Mercedes-Benz parts
Introduction

area of an air bag, e.g. to doors or side win-
dows
Rno heavy, sharp-edged or fragile objects are in
the pockets of your clothing. Store such
objects in a suitable place
GWARNING
If you modify the air bag cover or affix objects
such as stickers to it, the air bag can no longer
function correctly. There is an increased risk
of injury.
Never modify an air bag cover or affix objects
to it.
GWARNING
Sensors to control the air bags are located in
the doors. Modifications or work not per-
formed correctly to the doors or door panel-
ing, as well as damaged doors, can lead to the
function of the sensors being impaired. The air
bags might therefore not function properly
anymore. Consequently, the air bags cannot
protect vehicle occupants as they are
designed to do. There is an increased risk of
injury.
Never modify the doors or parts of the doors.
Always have work on the doors or door pan-
eling carried out at a qualified specialist work-
shop.
Front air bags
!Do not place heavy objects on the front-
passenger seat. This could cause the system
to identify the seat as being occupied. In the
event of an accident, the restraint systems on
the front-passenger side may be triggered
and have to be replaced.
Driver's air bag :deploys in front of the steer-
ing wheel. Front-passenger front air bag ;
deploys in front of and above the glove box.
When deployed, the front air bags offer addi-
tional head and thorax protection for the occu-
pants in the driver's and front-passenger seats.
The PASSENGER AIR BAG OFF indicator lamp
informs you about the status of the front-
passenger front air bag (
Ypage 41).
The front-passenger front air bag will only
deploy if:
Rthe system, based on the OCS weight sensor
readings, detects that the front-passenger
seat is occupied (
Ypage 47). The
PASSENGER AIR BAG OFF indicator lamp is
not lit (
Ypage 48)
Rthe restraint system control unit predicts a
high accident severity
Knee bags
Driver's knee bag :deploys under the steering
column and front-passenger knee bag ;under
the glove box. The driver's and front-passenger
knee bags are triggered together with the front
air bags.
The driver's and front-passenger knee bags
offer additional thigh, knee and lower leg pro-
tection.
Side impact air bags
GWARNING
Unsuitable seat covers can obstruct or pre-
vent deployment of the air bags integrated
into the seats. Consequently, the air bags
cannot protect vehicle occupants as they are designed to do. In addition, the operation of
the occupant classification system (OCS)
46Occupant safety
Safety

Rsetting a more favorable seat position for the
front-passenger seat.
Rvehicles with a multicontour seat: increasing
the air pressure in the side bolsters of the seat
backrest.
!Make sure that there are no objects in the
footwell or behind the seats. There is a danger that the seats and/or objects could be dam-
aged when PRE-SAFE
®is activated.
Should an accident not occur, the preventative
measures taken are reversed. Certain settings
must be made yourself.
XIf the seat belt pre-tensioning is not reduced,
move the seat backrest back slightly.
Seat belt pre-tensioning is released.
PRE-SAFE®PLUS (anticipatory occu-
pant protection system PLUS)
Introduction
PRE-SAFE®PLUS is only available in vehicles
with the Driving Assistance package.
Using the radar sensor system, PRE-SAFE
®
PLUS is able to detect that a head-on or rear-end
collision is imminent. In certain hazardous sit-
uations, PRE-SAFE
®PLUS takes pre-emptive
measures to protect the vehicle occupants.
Important safety notes
The intervention of PRE-SAFE®PLUS cannot
prevent an imminent collision.
The driver is not warned about the intervention
of PRE-SAFE
®PLUS.
PRE-SAFE®PLUS does not intervene if the vehi-
cle is backing up.
When driving, or when parking or exiting a park-
ing space with assistance from Parking Pilot,
PRE-SAFE
®PLUS will not apply the brakes.
Function
PRE-SAFE®PLUS intervenes in certain situa-
tions if the radar sensor system detects an
imminent head-on or rear-end collision. PRE-SAFE
®PLUS takes the following measures
depending on the hazardous situation detected:
Rif the radar sensor system detects that a
head-on collision is imminent, the seat belts
are pre-tensioned.
Rif the radar sensor system detects that a rear-
end collision is imminent:
-the brake pressure is increased if the driver
applies the brakes when the vehicle is sta-
tionary.
-the seat belts are pre-tensioned.
The PRE-SAFE®PLUS braking application is can-
celed:
Rif the accelerator pedal is depressed when a
gear is engaged
Rif the risk of a collision passes or is no longer
detected
Rif Distance Pilot DISTRONIC indicates an
intention to pull away
If the hazardous situation passes without result-
ing in an accident, the original settings are
restored.
Automatic measures after an acci-
dent
Immediately after an accident, the following
measures are implemented, depending on the
type and severity of the impact:
Rthe hazard warning lamps are switched on
Rthe emergency lighting is activated
Rthe vehicle doors are unlocked
Rthe front side windows are lowered
Rthe electrically adjustable steering wheel is
raised when the driver's door is opened
Rthe engine is switched off and the fuel supply
is switched off
Rvehicles with mbrace: automatic emergency
call
Children in the vehicle
Important safety notes
If a child younger than twelve years old and
under 5 ft (1.50 m)in height is traveling in the
vehicle:
Ralways secure the child in a child restraint
system suitable for Mercedes-Benz vehicles.
56Children in the vehicle
Safety

Braking
XKeep the brake pedal firmly depressed until
the emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated.
Brake Assist with cross-traffic func-
tion
General information
Brake Assist with cross-traffic function can help
you to minimize the risk of a collision with a
vehicle or a pedestrian and reduce the effects of
such a collision. If Brake Assist with cross-traffic
function detects a danger of collision, you are
assisted when braking.
iObserve the "Important safety notes" sec-
tion (Ypage 60).
Brake Assist with cross-traffic function is only
available in vehicles with the Driving Assistance
package.
For Brake Assist with cross-traffic function to
assist you when driving, the radar sensor system
and the camera system must be operational.
The sensor system and camera system help
Brake Assist with cross-traffic function 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.
Brake Assist with cross-traffic function detects
pedestrians using typical characteristics such
as body contours and the posture of a person
standing upright.
If the radar sensor system or the camera system
is malfunctioning, Brake Assist with cross-traffic function is restricted or no longer available. The
brake system is still available with comple te
b

rake boosting effect and BAS.
iObserve the restrictions described in the
"Important safety notes" section
(
Ypage 61).
Important safety notes
GWARNING
Active Brake Assist with cross-traffic function cannot always clearly identify objects and
complex traffic situations.
In such cases, Active Brake Assist with cross-
traffic function might:
Rissue an unnecessary warning or brake
Rissue no warning or not brake
Always pay careful attention to the traffic sit-
uation; do not rely on the Active Brake Assist
with cross-traffic function alone.
Always be ready to brake and possibly take
evasive action.
GWARNING
Brake Assist with cross-traffic function can-
not always clearly identify people, particularly if they are moving. Brake Assist with cross-
traffic function cannot intervene in these
cases. There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
GWARNING
Active Brake Assist with cross-traffic function does not react:
Rto small people, e.g. children
Rto animals
Rto oncoming vehicles
Rwhen cornering
As a result, Active Brake Assist with cross-
traffic function may not warn you or engage in
all critical situations. There is a risk 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.
Driving safety systems61
Safety
Z

Recognition by theradar sensor system is also
impaire dif:
Rthere is dirt on th esensor sor anythin gelse
covering th esensor s
Rthere is interferenc eby other radar source s
Rthere are strongradar reflections, for exam-
ple in parking garages
Ra narrow vehicl eis traveling in front, e.g. a
motorbike
Ra vehicl eis traveling in fron ton adifferen tlin e
Rvehicles quickly mov eint oth eradar sensor
system detection range
Recognition by th ecamera system is also
impaire din th eevent of:
Rdirt on th ecamera or if th ecamera is covered
Rglar eon th ecamera system, e.g. from th esun
bein glow in th esk y
Rdarkness
Ror if:
-pedestrian smov equickly, e.g. int oth epat h
of th evehicl e
-thecamera system no longer recognizes a
pedestrian as aperson due to special cloth -
ing or other objects
-a pedestrian is concealed by other objects
-th etypical outlin eof aperson is no tdistin-
guishable from th ebackgroun d
Followin gdamag eto th efron ten dof th evehicle,
hav eth econfiguration and operation of th e
radar sensor schecke dat aqualified specialist
workshop. This also applie sto collision sat slow
speeds wher ethere is no visible damag eto th e
fron tof th e
ve
hicle.
Followin gdamag eto th ewindshield, hav eth e
configuration and operation of th ecamera sys-
te m checke dat aqualified specialist workshop.
Function
To avoi d acollision ,Brake Assist wit hcross -
traffic function calculates th ebrak eforce nec-
essary if:
Ryou approac han obstacle, and
RBrake Assist wit hcross-traffic function has
detecte d ariskof collision
When drivin gat aspeed under 20 mp h
(30 km/h) :if you depress th ebrak epedal ,
Brake Assist wit hcross-traffic function is acti-
vated. The increas ein brak epressur ewill be
carrie dout at th elast possibl emoment. When drivin
gat aspeed above 20 mp h
(30 km/h) :if you depress th ebrak epedal
sharply, Brake Assist wit hcross-traffic function
automatically increases th ebrak epressur eto a
degree suited to th etraffic situation .
Brake Assis twit hcross-traffic function provide s
braking assistanc ein hazardous situation swit h
vehicles in fron twithin aspee drange between
4 mph (7 km/h) and 15 5mph (25 0km/h).
Up to aspee dof approximately 44 mph
(70 km/h), Brake Assist wit hcross-traffic func-
tion may reac tto :
Rstationary objects in th epat hof your vehicle,
e.g. stoppe dor parked vehicles
Rpedestrian sin th epat hof your vehicl e
Robstacles crossing your path, whic hmov ein
th edetection range of th esensor sand are
recognized by th em
iIf Brake Assist wit
hcross-traffic function
require s aparticularly high braking force ,pre -
ventative passenger protection measures
(PRE-SAF E
®)are activated at th esam etime
(Ypage 55) .
XKeepth ebrak epedal depressed until th e
emergenc ybraking situation is over.
AB Sprevents th ewheels from locking.
Brake Assist wit hcross-traffic function is deac -
tivated and th ebrakes function as usual again if:
Ryou release th ebrak epedal
Rthere is no longer aris kof collision
Rno obstacle is detecte din fron tof your vehicl e
Ryou depress th eaccelerato rpedal
Ryou activat ekickdown
Active Brake Assist
General information
iObserv eth e"Importan tsafet ynotes" sec -
tion (Ypage 60) .
Active Brake Assis tconsist sof adistanc ewarn -
ing function wit han autonomous braking func-
tion and Adaptive Brake Assist .
Active Brake Assis tcan help you to minimiz eth e
ris kof acollision wit hth evehicl ein fron tor
reduce th eeffects of suc h acollision .
If Active Brake Assist detects that there is aris k
of collision ,you will be warned visually and
acoustically. If you do no treac tto th evisual and
62Driving safety systems
Safety

audible collision warning, autonomous braking
can be initiated in critical situations. If you apply
the brake yourself in a critical situation, Adap-
tive Brake Assist of the Active Brake Assist sys-
tem supports you.
Important safety notes
In particular, the detection of obstacles can be
impaired if:
Rthere is dirt on the sensors or anything else
covering the sensors
Rthere is snow or heavy rain
Rthere is interference by other radar sources
Rthere are strong radar reflections, for exam-
ple in parking garages
Ra narrow vehicle is traveling in front, e.g. a
motorbike
Ra vehicle is traveling in front on a different line
Ryou are driving a new vehicle or servicing on
the Active Brake Assist system has just been
carried out
Observe the important safety notes in the
"Breaking-in notes" section (
Ypage 121).
Following damage to the front end of the vehicle,
have the configuration and operation of the
radar sensor checked at a qualified specialist
workshop. This also applies to collisions at slow
speeds where there is no visible damage to the
front of the vehicle.
Activating/deactivating
Active Brake Assist is automatically active after
switching on the ignition.
You can activate or deactivate Active Brake
Assist using the on-board computer
(
Ypage 193). When deactivated, the distance
warning function and the autonomous braking
function are also deactivated.
If Active Brake Assist is deactivated, the æ
symbol appears in the assistance graphic dis-
play.
Distance warning function
General information
The distance warning function can help you to
minimize the risk of a front-end collision with a
vehicle ahead or reduce the effects of such a
collision. If the distance warning function detects that there is a risk of a collision, you will
be warned visually and acoustically.
Important safety notes
iObserve the "Important safety notes" sec-
tion for driving safety systems (Ypage 60).
GWARNING
The distance warning function does not react:
Rto people or animals
Rto oncoming vehicles
Rto crossing traffic
Rwhen cornering
The distance warning function may not give
warnings in all critical situations. There is a
risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
Always adapt your speed to suit the prevailing
road and traffic conditions.
GWARNING
The distance warning function cannot always
clearly identify objects and complex traffic
situations.
In such cases, the distance warning function
may:
Rgive an unnecessary warning
Rnot give a warning
There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and do not rely solely on the distance
warning function.
Function
Starting at a speed of approximately 4 mph
(7 km/h), the distance warning function warns
you if you rapidly approach a vehicle in front. An
intermittent warning tone will then sound, and
the · distance warning lamp will light up in
the instrument cluster.
XBrake immediately in order to increase the
distance from the vehicle in front.
or
XTake evasive action, provided it is safe to do
so.
Driving safety systems63
Safety
Z