sensor MERCEDES-BENZ S CLASS 2016 Owners Manual

Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 283
Notes ............................................. 430
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Display message ............................ 291
Brake pedal
Pedal resistance/pedal travel .......... 44
Brakes
ABS .................................................. 68
Adaptive Brake Assist ...................... 72
BAS .................................................. 69
BAS PLUS with Cross-Traffic
Assist ............................................... 69
Brake fluid (notes) ......................... 430
Display message ............................ 278
EBD .................................................. 75
High-performance brake system .... 196
Hill start assist ............................... 165
HOLD function ............................... 208
Important safety notes .................. 194
Maintenance .................................. 195
Parking brake ................................ 190
RBS warning lamp .......................... 315
Recuperative Brake System ............. 44
Riding tips ...................................... 194
Warning lamp ................................. 315
Breakdown
Where will I find...? ........................ 367
see Flat tire
see Towing away
Brightness control (instrument
cluster lighting) ................................... 35
Buttons on the steering wheel ......... 257
C
California
Important notice for retail cus-
tomers and lessees .......................... 25
Calling up a malfunction
see Display messages
Camera
see 360° camera see Rear view camera
Car
see Vehicle
Care
360° camera ................................. 363
Car wash ........................................ 359
Carpets .......................................... 366
Display ........................................... 364
Exhaust pipe .................................. 363
Exterior lights ................................ 362
Gear or selector lever .................... 365
General notes ................................ 359
Interior ........................................... 364
Matte finish ................................... 361
Night View Assist Plus ................... 364
Paint .............................................. 361
Plastic trim .................................... 364
Power washer ................................ 360
Rear view camera .......................... 363
Roof lining ...................................... 366
Seat belt ........................................ 366
Seat cover ..................................... 365
Sensors ......................................... 362
Steering wheel ............................... 365
Trim pieces .................................... 365
Washing by hand ........................... 360
Wheels ........................................... 361
Windows ........................................ 362
Wiper blades .................................. 362
Wooden trim .................................. 365
CD player (on-board computer) ........ 266
Center console
Overview .......................................... 37
Stowage space .............................. 326
Center console in the rear com-
partment
Stowage compartment .................. 327
Central locking
Locking/unlocking (SmartKey) ........ 79
Changing the media source ............. 265
Charging
see Charging the high-voltage bat-
tery (important safety notes)
Charging cable
Connecting .................................... 185
Controls ......................................... 183
Important safety notes .................. 183
Indicator lamp ................................ 184 Index 5

LATCH-type (ISOFIX) child seat
anchors ................................................ 63
License plate lamp (display mes-
sage) .................................................. .2 92
Light function, active
Display message ............................ 293
Light sensor (display message) ....... 293
Lights
Adaptive Highbeam Assist PLUS .... 133
Automatic headlamp mode ............ 130
Cornering light function ................. 132
Fogged up headlamps .................... 134
General notes ................................ 130
Hazard warning lamps ................... 132
High beam flasher .......................... 132
High-beam headlamps ................... 132
Light switch ................................... 130
Low-beam headlamps .................... 131
Parking lamps ................................ 131
Setting exterior lighting ................. 130
Standing lamps .............................. 131
Switching the daytime running
lamps on/off (on-board com-
puter) ............................................. 274
Switching the spotlight on/off ....... 274
Turn signals ................................... 131
see Interior lighting
see Replacing bulbs
Loading guidelines ............................ 325
Locking
see Central locking
Locking (doors)
Automatic ........................................ 87
Emergency locking ........................... 88
From inside (central locking but-
ton) ................................................. .8 6
Locking centrally
see Central locking
Low-beam headlamps
Display message ............................ 291
Switching on/off .......................... .1 31
Lumbar support
Adjusting the 4-way lumbar sup-
port ................................................ 118
Luxury head restraints ..................... 115 M M+S tires ............................................ 386
Magic Body Control ........................... 210
MAGIC SKY CONTROL ....................... 100
Malfunction message
see Display messages
Matte finish (cleaning instruc-
tions) ................................................. .3 61
Maximum charge current
Setting (charging cable) ................. 184
Setting (on-board computer) .......... 272
MBC
see Magic Body Control
mbrace
Call priority ................................... .3 44
Display message ............................ 283
Downloading destinations
(COMAND) ..................................... 344
Downloading routes ....................... 347
Emergency call .............................. 341
General notes ................................ 340
Geo fencing ................................... 347
Locating a stolen vehicle .............. .3 46
MB info call button ........................ 343
Remote fault diagnosis .................. 346
Remote vehicle locking .................. 345
Roadside Assistance button .......... 342
Search & Send ............................... 344
Self-test ......................................... 341
Speed alert ................................... .3 47
System .......................................... 341
Triggering the vehicle alarm ........... 347
Vehicle remote unlocking .............. 345
Mechanical key
Function/notes ................................ 81
General notes .................................. 81
Inserting .......................................... 82
Locking vehicle ................................ 88
Removing ......................................... 81
Unlocking the driver's door .............. 87
Media Interface
USB port in the armrest of the
center console ............................... 327
see Separate operating instructions
Memory card (audio) ......................... 266
Memory function
In the rear compartment ................ 12712
Index

Position of exterior mirror, front-
passenger side .............................. .1 25
Rear view camera .......................... 220
Switching off the engine ................ 190
see PARKTRONIC
Parking aid
see 360° camera
see Active Parking Assist
see Exterior mirrors
see PARKTRONIC
see Rear view camera
Parking assistance
see PARKTRONIC
Parking brake
Applying automatically ................... 191
Applying or releasing manually ...... 191
Display message ............................ 281
Electric parking brake .................... 190
Emergency braking ........................ 192
General notes ................................ 190
Releasing automatically ................. 191
Warning lamp ................................. 319
Parking lamps
Switching on/off ........................... 131
PARKTRONIC
Deactivating/activating ................. 215
Driving system ............................... 214
Function/notes ............................ .2 14
Important safety notes .................. 214
Problem (malfunction) ................... 216
Range of the sensors ..................... 214
Warning display ............................. 215
PASSENGER AIR BAG
Display message ............................ 289
Indicator lamps ................................ 46
Problem (malfunction) ................... 289
Perfume atomizer
Operating ....................................... 153
Problem (malfunction) ................... 155
Vial ................................................ 153
Pets in the vehicle ............................... 67
Plastic trim (cleaning instruc-
tions) .................................................. 364
PLUG-IN HYBRID operating
Electrical energy generated ........... 249
PLUG-IN HYBRID operation
Automatic engine start (ECO
start/stop function) ....................... 253 Automatic engine switch-off (ECO
start/stop function) ....................... 252
Charge level of the high-voltage
battery ........................................... 245
Charging the high-voltage battery .. 246
Displaying the total range and
electric range ................................. 248
Driving tip s .................................... 251
EC O
start/stop function ................ 252
Electric motor (power display) ....... 242
Electrical energy generated
(COMAND) ..................................... 249
Energy flow display ........................ 245
Fuel consumption .......................... 249
Fuel consumption (COMAND) ........ 249
General notes ................................ 240
Haptic accelerator pedal ................ 251
High-voltage battery (condition of
charge) .......................................... 245
Hybrid drive system overview ........ 241
HYBRID menu ................................ 272
Important safety notes .................. 240
Instrument cluster (power dis-
play) ............................................... 242
Instrument cluster overview .......... 242
Manual drive program .................... 250
Noiseless start ............................... 249
Operating (on-board computer) ..... 245
Operating mode ............................. 243
Overrun mode ................................ 253
Parking .......................................... 253
Power display ................................ 244
Power display (electric motor) ....... 242
Problems ....................................... 254
Problems with SRS (supplemental
restraint system) ............................ 255
Problems with the combustion
engine ............................................ 254
Problems with the hybrid drive
system ........................................... 255
Problems with the Recuperative
Brake System ................................ 254
Program selector button ................ 250
Pulling away ................................... 250
READY display ............................... 249
Recuperative Brake System ........... 240
Resetting the values (COMAND) .... 249
Route-based operating strategy ..... 253 Index 15

Cleaning the cover ........................ .3 65
Correct driver's seat position ....... .1 04
Display message ............................ 310
EASY-ENTRY/EXIT system ............. 122
Important safety notes .................. 105
Multicontour seat .......................... 117
Seat heating .................................. 118
Seat heating problem .................... 119
Seat ventilation .............................. 119
Seat ventilation problem ................ 120
Storing settings (memory func-
tion) ............................................... 126
Switching seat heating on/off ....... 118
Switching seat ventilation on/off .. 119
Section
Wheels and tires ............................ 384
Securing a load
see Securing cargo
Securing cargo .................................. 329
Selector lever
Cleaning ......................................... 365
see Automatic transmission
Sensors (cleaning instructions) ....... 362
Service menu (on-board com-
puter) ................................................. .2 69
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 430
Coolant (engine) ............................ 431
Engine oil ....................................... 429
Fuel ................................................ 428
Important safety notes .................. 427
Refrigerant (air-conditioning sys-
tem) ............................................... 432
Washer fluid ................................... 431
Setting the charge current (on-
board computer) ............................... 272
Setting the departure time (on-
board computer) ............................... 272
Settings
Factory (on-board computer) ......... 275
On-board computer ....................... 269
SETUP (on-board computer) ............. 276
Side impact air bag ............................ .5 2
Side marker lamp (display mes-
sage) ................................................... 292 Side windows
Cleaning ........................... .............. 362
Convenience closing feature ............ 96
Convenience opening feature ......... .9 5
Importa nt safety information ........... 94
Opening/closing .............................. 95
Problem (malfunction) .................... .9 7
Resettin g ........................................ .9 6
Reversin g feature ............................ .9 4
Sliding sunroof
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 82
Changing the programming ............ .8 1
Checking the battery ...................... .8 2
Convenience closing feature ............ 96
Convenience opening feature .......... 95
Display message ............................ 312
Door central locking/unlocking ...... .7 9
Important safety notes .................... 79
KEYLESS-GO start function .............. 81
Loss ................................................ .8 4
Mechanical key ................................ 81
Overview .......................................... 79
Positions (ignition lock) ................. 162
Problem (malfunction) ..................... 84
Starting the engine ........................ 164
Smartphone
Starting the engine ........................ 164
Snow chains ...................................... 386
Sockets
Center console .............................. 336
General notes ................................ 336
Rear compartment ........................ .3 37
Trunk ............................................. 337
Special seat belt retractor .................. 62
Specialist workshop ............................ 28
Speed, controlling
see Cruise control
Speedometer
Activating/deactivating the addi-
tional speedometer ........................ 274
Digital ............................................ 263
In the Instrument cluster ................. 33
Selecting the display unit .............. .2 74
Standing lamps
Display message ............................ 29218
Index

To avoid hazardous situations, always make
sure that all of the vehicle's occupants: R
have fastened their seat belts correctly,
including pregnant women R
are sitting correctly and maintain the great-
est possible distance to the air bags R
follow the following instructions
Always make sure that there are no objects
between the air bag and the vehicle's occu-
pants. R
Adjust the seats properly before beginning
your journey. Always make sure that the seat
is in an almost upright position. The center of
the head restraint must support the head at
about eye level. R
Move the driver's and front-passenger seats
as far back as possible. The driver's seat posi-
tion must allow the vehicle to be driven safely. R
Only hold the steering wheel on the outside.
This allows the air bag to be fully deployed. R
Always lean against the backrest while driv-
ing. Do not lean forwards or lean against the
door or side window. You may otherwise be in
the deployment area of the air bags. R
Always keep your feet in the footwell in front
of the seat. Do not put your feet on the dash-
board, for example. Your feet may otherwise
be in the deployment area of the air bag. R
For this reason, always secure persons less
than 5 ft (1.50 m) tall in suitable restraint sys-
tems. Up to this height, the seat belt cannot
be worn correctly.
If a child is traveling in your vehicle, also
observe the following notes: R
Always secure children under twelve years of
age and less than 5 ft (1.50 m) tall in suitable
child restraint systems. R
Child restraint systems should be installed on
the rear seats. R
Only secure a child in a rearward-facing child
restraint system on the front-passenger seat
when the front-passenger front air bag is
deactivated. If the PASSENGER AIR BAG OFF
indicator lamp is permanently lit, the fro nt-
p a
ssenger front air bag is deactivated
( Y
page 46). R
Always observe the instructions and safety
notes on the "Occupant Classification System
(OCS)" ( Y
page 53) and on "Children in the vehicle" ( Y
page 61 )i n addition to the child
restraint system manufacturer's installation
and operating instructions.
Objects in the vehicle interior may prevent
an air bag from functioning correctly. Before
starting your journey and to avoid risks resulting
from the speed of the air bag as it deploys, make
sure that: R
there are no people, animals or objects
between the vehicle occupants and an air
bag. R
there are no objects between the seat, door
and B-pillar. R
no hard objects, e.g. coat hangers, hang on
the grab handles or coat hooks. R
no accessories, such as cup holders, are
attached to the vehicle within the deployment
area of an air bag, e.g. to doors, side windows,
rear side trim or side walls. R
no heavy, sharp-edged or fragile objects are in
the pockets of your clothing. Store such
objects in a suitable place.
G WARNING
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.
G WARNING
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.Occupant safety 51
Safety Z

Front air bags
Driver's air bag C deploys in fron t of th e steer -
ing wheel. Front-passenger fron t air bag D
deploys in fron t of and abov e th e glov e box .
When deployed, th e fron t air bags offer addi-
tional head and thorax protection for th e occu-
pants in th e fron t seats.
The PASSENGER AI R BA G OF F and PASSENGER
AI R BA G ON indicator lamp s inform you about
th e status of th e front-passenger air bag
( Y
page 46).
The front-passenger fron t air bag will only
deplo y if:R
th e system, based on th e OCS weigh t sensor
readings, detect s that th e front-passenger
seat is occupied ( Y
page 53) . The
PASSENGER AI R BA G ON indicator lamp is lit
( Y
page 54)R
th e restrain t system control unit predicts a
high acciden t severit y
Driver's knee bag
Driver's knee bag C deploys under th e steering
column . The driver' s knee bag is always
deployed alon g wit h th e driver' s fron t air bag. The driver' s knee bag offers additional thigh,
knee and lower leg protection for th e occupant
in th e driver' s seat .
Side impact air bags
G WARNIN G
Unsuitable seat cover s could restrict or eve n
preven t th e deploymen t of th e air bags inte-
grated int o th e seats. Consequently, th e air
bags canno t protect vehicl e occupant s as
they are designed to do. In addition , th e func-
tion of th e Occupant Classification Syste m
(OCS ) could be restricted. This poses an
increased ris k of injury or eve n fatal injury.
You should only use seat cover s that have
been approve d for th e respective seat by
Mercedes-Benz.
Fron t side impac t air bags C and rear side
impact air bags D deplo y next to th e outer bol-
ster of th e seat backrest .
When deployed, th e side impac t air bag offers
additional thorax protection . It also offers addi-
tional pelvis protection for occupant s in th e
fron t seats. However, it does no t protect the:R
head R
neck R
arm s
In th e event of a side impact, th e side impac t air
bag is deployed on th e side on whic h th e impac t
occurs.52
Occupant safety
Safety

style to suit the prevailing road and weather
conditions and maintain a safe distance from
the vehicle in front. Drive carefully.
Function PRE-SAFE ®
intervenes:R
in emergency braking situations, e.g. when
BAS is activated R
in critical driving situations, e.g. when physi-
cal limits are exceeded and the vehicle under-
steers or oversteers severely R
vehicles with the Driving Assistance package:
when a driver assistance system intervenes
powerfully or the radar sensor system detects
an imminent danger of collision in certain sit-
uations
PRE-SAFE ®
takes the following measures
depending on the hazardous situation detected: R
the front seat belts are pre-tensioned. R
if the vehicle skids, the side windows and the
panorama roof with power tilt/sliding panel
are closed. R
the front-passenger seat is adjusted if it is in
an unfavorable position. R
for vehicles with electrically adjustable rear
seats: the outer rear seats are adjusted if they
are in an unfavorable position. R
vehicles with a multicontour seat: the air pres-
sure in the side bolsters of the seat backrest
is increased. R
vehicles with seat belt extenders: the seat
belts of the outer rear seats are pre-ten-
sioned.
If the hazardous situation passes without result-
ing in an accident, PRE-SAFE ®
slackens the belt
pre-tensioning. On vehicles with multicontour
seats, the air pressure in the side bolsters is
reduced again. All settings made by PRE-SAFE ®
can then be reversed.
If the seat belt pre-tensioning is not reduced: X
Move the seat backrest or seat back slightly
when the vehicle is stationary.
The seat belt pre-tensioning is reduced and
the locking mechanism is released.
The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. Informa-
tion about the convenience function can be
found under "Belt adjustment" ( Y
page 50). 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 when PRE-SAFE ®
PLUS
intervenes.
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 Active Parking
Assist, 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: R
if the radar sensor system detects that a
head-on collision is imminent, the seat belts
are pre-tensioned. R
if 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: R
if the accelerator pedal is depressed when a
gear is engaged R
if the risk of a collision passes or is no longer
detected R
if DISTRONIC PLUS indicates an intention to
pull away60
Occupant safety
Safety

If ABS intervenes when braking, you will feel a
pulsing in the brake pedal.
The pulsating brake pedal can be an indication
of hazardous road conditions, and functions as a
reminder to take extra care while driving.
BAS (Brake Assist System)
General information BAS operates in emergency braking situations.
If you depress the brake pedal quickly, BAS
automatically boosts the braking force, thus
shortening the stopping distance.
Important safety notes
i Observe the "Important safety notes" sec-
tion ( Y
page 68).
G WARNING
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased. There is a risk of an accident.
In an emergency braking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
Braking X
Keep 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.
BAS PLUS (Brake Assist System
PLUS) with Cross-Traffic Assist
General information BAS PLUS 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 BAS
PLUS detects a danger of collision, you are
assisted when braking.
i Pay attention to the important safety notes
in the "Driving safety systems" section
( Y
page 68). BAS PLUS is only available in vehicles with the
Driving Assistance Plus package.
For BAS PLUS to assist you when driving, the
radar sensor system and the camera system
must be operational.
With the help of a sensor system and a camera
system, BAS PLUS can detect obstacles: R
that are in the path of your vehicle for an
extended period of time R
that cross the path of your vehicle
In addition, pedestrians in the path of your vehi-
cle can be detected.
BAS PLUS detects pedestrians by using typical
characteristics such as the body contours and
posture of a person standing upright.
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 complete brake boost-
ing effect and BAS.
i Observe the restrictions described in the
"Important safety notes" sec-
tion“ ( Y
page 69).
Important safety notes
G WARNING
BAS PLUS cannot always clearly identify
objects and complex traffic situations.
In such cases, BAS PLUS may: R
intervene unnecessarily R
not intervene
There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake. Terminate the
intervention in a non-critical driving situation.
G WARNING
BAS PLUS cannot always clearly identify peo-
ple, this is especially the case if they are mov-
ing. BAS PLUS 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.Driving safety systems 69
Safety Z

G WARNING
BAS PLUS does not react: R
to small people, e.g. children R
to animals R
to oncoming vehicles R
when cornering
As a result, BAS PLUS may not intervene 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.
Recognition by the radar sensor system is also
impaired in the event of: R
there is dirt on the sensors or anything else
covering the sensors R
there is interference by other radar sources R
there are strong radar reflections, for exam-
ple in parking garages R
a narrow vehicle traveling in front, e.g. a
motorbike R
a vehicle traveling in front on a different line R
vehicles quickly moving into the radar sensor
system detection range
Recognition by the camera system is also
impaired in the event of: R
dirt on the camera or if the camera is covered R
there is glare on the camera system, e.g. from
the sun being low in the sky R
darkness R
if: -
pedestrians move quickly, e.g. into the path
of the vehicle -
the camera system no longer recognizes a
pedestrian as a person due to special cloth-
ing or other objects -
a pedestrian is concealed by other objects -
the typical outline of a person is not distin-
guishable from the background
Following damage to the front end of the vehicle,
have the configuration and operation of the
radar sensors 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. Following damage to the windshield, have the
configuration and operation of the camera sys-
tem checked at a qualified specialist workshop.
Function To avoid a collision, BAS PLUS calculates the
brake force necessary if: R
you approach an obstacle, and R
BAS PLUS has detected a risk of collision
When driving at a speed under 20 mph
(30 km/h) : if you depress the brake pedal, BAS
PLUS is activated. The increase in brake pres-
sure will be carried out at the last possible
moment.
When driving at a speed above 20 mph
(30 km/h) : if you depress the brake pedal
sharply, BAS PLUS automatically raises the
brake pressure to a value adapted to the traffic
situation.
BAS PLUS provides braking assistance in haz-
ardous situations with vehicles in front within a
speed range between 4 mph (7 km/h) and
155 mph (250 km/h).
At speeds of up to approximately 44 mph
(70 km/h), BAS PLUS can react to: R
stationary objects in the path of your vehicle,
e.g. stopped or parked vehicles R
pedestrians in the path of your vehicle R
obstacles crossing your path, which move in
the detection range of the sensors and are
recognized by them
i If BAS PLUS demands particularly high brak-
ing force, preventative passenger protection
measures (PRE-SAFE ®
) are activated simulta-
neously ( Y
page 59). X
Keep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
BAS PLUS is deactivated and the brakes func-
tion as usual again, if: R
you release the brake pedal. R
there is no longer a risk of collision. R
no obstacle is detected in front of your vehi-
cle. R
you depress the accelerator pedal. R
you activate kickdown.70
Driving safety systems
Safety

COLLISION PREVENTION ASSIST
PLUS
General information COLLISION PREVENTION ASSIST PLUS consists
of a distance warning function with an autono-
mous braking function and adaptive Brake
Assist.
COLLISION PREVENTION ASSIST PLUS 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 COLLISION PREVENTION ASSIST PLUS
detects that there is a risk of a collision, you will
be warned visually and acoustically. If you do not
react to the visual and audible collision warning,
autonomous braking can be initiated in critical
situations. If you apply the brake yourself in a
critical situation, the COLLISION PREVENTION
ASSIST PLUS adaptive Brake Assist assists you.
Important safety notes In particular, the detection of obstacles can be
impaired if: R
there is dirt on the sensors or anything else
covering the sensors R
there is snow or heavy rain R
there is interference by other radar sources R
there are strong radar reflections, for exam-
ple in parking garages R
a narrow vehicle traveling in front, e.g. a
motorbike R
a vehicle traveling in front on a different line R
new vehicles or after a service on the COLLI-
SION PREVENTION ASSIST PLUS system
Observe the notes in the section on breaking-
in ( Y
page 161).
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.
Switching on/off
The COLLISION PREVENTION ASSIST PLUS is
automatically active after switching on the igni-
tion. You can activate or deactivate COLLISION PRE-
VENTION ASSIST PLUS in the on-board com-
puter ( Y
page 270). When deactivated, the dis-
tance warning function and the autonomous
braking function are also deactivated.
If COLLISION PREVENTION ASSIST PLUS is
deactivated, the