sensor MERCEDES-BENZ S CLASS 2017 Owners Manual

Replacin g ........................................ .8 0
Battery (vehicle)
Charging ........................................ 334
Display message ............................ 243
Important safety notes .................. 332
Jump starting ................................. 335
Belt
see Seat belts
Belt bag ................................................ 46
Blind Spot Assist
see Active Blind Spot Assist
Blootooth ®
Connecting a different mobile
phone ............................................ 278
Bluetooth ®
Searching for a mobile phone ........ 277
see also Digital Operator's Man-
ual .................................................. 269
Telephony ...................................... 277
Box (trunk) ......................................... 287
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 233
Notes ............................................. 374
Brake force distribution
see EBD (electronic brake force
distribution)
Brakes
ABS .................................................. 66
Adaptive Brake Assist ...................... 70
BAS .................................................. 66
BAS PLUS with Cross-Traffic
Assist ............................................... 67
Brake fluid (notes) ......................... 374
Display message ............................ 228
EBD .................................................. 73
High-performance brake system .... 168
Hill start assist ............................... 148
HOLD function ............................... 178
Important safety notes .................. 166
Maintenance .................................. 167
Parking brake ................................ 163
Riding tips ...................................... 166
Warning lamp ................................. 260
Breakdown
Where will I find...? ........................ 327 see Flat tire
see Towing away
Brightness control (instrument
cluster lighting) ................................... 36
Buttons on the steering wheel ......... 211
C California
Important notice for retail cus-
tomers and lessees .......................... 27
Calling up a malfunction
see Display messages
Calling up the climate control bar
Multimedia system ........................ 274
Calling up the climate control
menu
Multimedia system ........................ 274
Camera
see Rear view camera
Car
see Vehicle
Care
360° camera ................................. 323
Car wash ........................................ 319
Carpets .......................................... 326
Display ........................................... 324
Exhaust pipe .................................. 323
Exterior lights ................................ 322
General notes ................................ 319
Interior ........................................... 324
Matte finish ................................... 321
Night View Assist Plus ................... 324
Paint .............................................. 321
Plastic trim .................................... 324
Power washer ................................ 320
Rear view camera .......................... 323
Roof lining ...................................... 326
Seat belt ........................................ 325
Seat cover ..................................... 325
Selector lever ................................ 325
Sensors ......................................... 323
Steering wheel ............................... 325
Trim pieces .................................... 325
Washing by hand ........................... 320
Wheels ........................................... 322
Windows ........................................ 322
Wiper blades .................................. 3226
Index

K Key positions
Sm artKey ...................................... .1 45
Start/Stop button .......................... 145
KEYLESS-GO
Activating ......................................... 78
Convenience closing feature ............ 92
Deactivation ..................................... 78
Locking ............................................ 78
Start function ................................... 79
Unlocking ......................................... 78
Kickdown
Driving tips ................................... .1 55
Knee bag .............................................. 49
L Lamps
see Warning and indicator lamps
Lane Keeping Assist
see Active Lane Keeping Assist
LATCH-type (ISOFIX) child seat
anchors ................................................ 61
License plate lamp (display mes-
sage) ................................................... 241
Light sensor (display message) ....... 241
Lights
Adaptive Highbeam Assist PLUS .... 126
Automatic headlamp mode ............ 124
Cornering light function ................. 126
Fogged up headlamps .................... 127
General notes ................................ 124
Hazard warning lamps ................... 126
High beam flasher .......................... 125
High-beam headlamps ................... 125
Light switch ................................... 124
Low-beam headlamps .................... 125
Parking lamps ................................ 125
Setting exterior lighting ................. 124
Standing lamps .............................. 125
Switching the daytime running
lamps on/off (on-board com-
puter) ............................................. 225
Switching the spotlight on/off ....... 225
Turn signals ................................... 125
see Interior lighting
Loading guidelines ............................ 281 Locking
see Central locking
Locking (doors)
Automatic ........................................ 84
Emergency locking ........................... 84
From inside (central locking but-
ton) ................................................. .8 3
Locking centrally
see Central locking
Low-beam headlamps
Display message ............................ 241
Switching on/off .......................... .1 25
Lumbar support
Adjusting the 4-way lumbar sup-
port ................................................ 112
Luxury head restraints ..................... 110
M M+S tires ............................................ 345
Magic Body Control ........................... 180
MAGIC SKY CONTROL ......................... 97
Malfunction message
see Display messages
Matte finish (cleaning instruc-
tions) ................................................. .3 21
MBC
see Magic Body Control
mbrace
Call priority ................................... .3 04
Display message ............................ 233
Downloading destinations
(COMAND) ..................................... 304
Downloading routes ....................... 307
Emergency call .............................. 301
General notes ................................ 300
Geo fencing ................................... 307
Info call button .............................. 303
Locating a stolen vehicle .............. .3 06
Remote fault diagnosis .................. 306
Remote vehicle locking .................. 305
Roadside Assistance button .......... 302
Search & Send ............................... 304
Self-test ......................................... 301
Speed alert .................................... 307
System .......................................... 301
Triggering the vehicle alarm ........... 307
Vehicle remote unlocking .............. 305 Index 13

Paintwork (cleaning instructions) ... 321
Panic alarm .......................................... 42
Panorama roof with power tilt/
sliding panel
Important safety notes .................... 94
Opening/closing the roller sun-
blind ................................................ .9 6
Operating ......................................... 95
Operating the roller sunblinds for
the sliding sunroof ........................... 96
Problem (malfunction) ..................... 99
Rain closing feature ........................ .9 6
Resettin g ........................................ .9 8
Reversin g feature ............................ .9 5
Parcel net hooks .............................. .2 88
Parking
Important safety notes .................. 162
Parking brake ................................ 163
Parking position for the exterior
mirror on the front-passenger
side ................................................ 119
Rear view camera .......................... 190
Switching off the engine ................ 162
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 ................... 163
Applying or releasing manually ...... 163
Display message ............................ 230
Electric parking brake .................... 163
Emergency braking ........................ 164
General notes ................................ 163
Releasing automatically ................. 164
Warning lamp ................................. 263
Parking lamps
Switching on/off ........................... 125
PARKTRONIC
Deactivating/activating ................. 185
Driving system ............................... 184
Function/notes ............................ .1 84
Important safe ty notes .................. 184 Probl em
(malfunction) ................... 186
Range of the sensors ..................... 184
Warning display ............................. 185
PASSENGER AIR BAG
Display message ............................ 239
Indicator lamps ................................ 43
Problem (malfunction) ................... 239
Perfume atomizer
Operating ....................................... 141
Problem (malfunction) ................... 142
Setting the perfume intensity
(multimedia system) ...................... 274
Vial ................................................ 141
Pets in the vehicle ............................... 65
Phone book
see also Digital Operator's Man-
ual .................................................. 269
Plastic trim (cleaning instruc-
tions) .................................................. 324
Power locks ......................................... 84
Power washers .................................. 320
Power windows
see Side windows
PRE-SAFE ®
(anticipatory occupant
protection)
Display message ............................ 234
Operation ......................................... 57
PRE-SAFE ®
Brake
Activating/deactivating ................. 223
Display message ............................ 234
Function/notes ................................ 73
Important safety notes .................... 74
Warning lamp ................................. 266
PRE-SAFE ®
PLUS (anticipatory
occupant protection PLUS)
Display message ............................ 234
Operation ......................................... 58
Program selector button .................. 155
Protection against theft
ATA (Anti-Theft Alarm system) ......... 76
Immobilizer ...................................... 75
Protection of the environment
General notes .................................. 26
Pulling away
Automatic transmission ................. 148
General notes ................................ 148
Hill start assist ............................... 14816
Index

Roof lining and carpets (cleaning
guidelines) ......................................... 326
Roof load (maximum) ........................ 376
Route guidance
see also Digital Operator's Man-
ual .................................................. 269
SSafety
Children in the vehicle ..................... 59
see Occupant safety
see Operating safety
Safety system
see Driving safety systems
SD card
Inserting/removing ........................ 278
SD memory card
see also Digital Operator's Man-
ual .................................................. 269
Selecting ........................................ 218
Search & Send
see also Digital Operator's Man-
ual .................................................. 269
Seat
Adjusting the front-passenger
seat from the driver's seat ............. 103
Adjusting the front-passenger
seat from the rear .......................... 104
Multicontour seat in the rear com-
partment ........................................ 112
Seat belt buckle extender
Display message ............................ 235
Seat belt extender
Function/notes ................................ 47
Seat belts
Adjusting the driver's and front-
passenger seat belt ......................... 47
Adjusting the height ......................... 46
Cleaning ......................................... 325
Correct usage .................................. 45
Fastening ......................................... 46
Important safety guidelines ............. 44
Introduction ..................................... 43
Releasing ......................................... 47
Seat belt extender ........................... 47
Warning lamp ................................. 259
Warning lamp (function) ................... 47 Seating
Seating comfort package ............... 112
Seating comfort package ................. 112
Seats
Active multicontour seat ................ 112
Adjusting (electrically) ................... 101
Adjusting (rear compartment) ........ 102
Adjusting the 4-way lumbar sup-
port ................................................ 112
Adjusting the head restraint .......... 109
Calling up a stored setting (mem-
ory function) .................................. 120
Chauffeur mode ............................. 106
Cleaning the cover ......................... 325
Correct driver's seat position ........ 100
Display message ............................ 256
EASY-ENTRY/EXIT system ............. 116
Important safety notes .................. 100
Seat heating .................................. 112
Se at
heating problem .................... 114
Seat ventilation .............................. 113
Storing settings (memory func-
tion) ............................................... 120
Switching seat heating on/off ....... 112
Switching seat ventilation on/off .. 113
Section
Wheels and tires ............................ 343
Securing a load
see Securing cargo
Securing cargo .................................. 288
Selector lever
Cleaning ......................................... 325
see Automatic transmission
Sensors (cleaning instructions) ....... 323
Service menu (on-board com-
puter) .................................................. 221
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 374
Coolant (engine) ............................ 374
Engine oil ....................................... 373
Fuel ................................................ 372
Important safety notes .................. 371
Refrigerant (air-conditioning sys-
tem) ............................................... 375
Washer fluid ................................... 37518
Index

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.
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 C deploys in front of the steer-
ing wheel. Front-passenger front air bag D
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 front seats.
The PASSENGER AIR BAG OFF indicator lamp
informs you about the status of the front-
passenger front air bag ( Y
page 43).
The front-passenger front air bag will only
deploy if: R
the system, based on the OCS weight sensor
readings, detects that the front-passenger
seat is occupied ( Y
page 51). The
PASSENGER AIR BAG OFF indicator lamp is
not lit ( Y
page 51) R
the restraint system control unit predicts a
high accident severity
Driver's knee bag
Driver's knee bag C deploys under the steering
column. The driver's knee bag is always
deployed along with the driver's front air bag.
The driver's knee bag offers additional thigh,
knee and lower leg protection for the occupant
in the driver's seat.Occupant safety 49
Safety Z

The rate of vehicle deceleration or acceleration
and the direction of the force are essentially
determined by: R
the distribution of forces during the collision R
the collision angle R
the deformation characteristics of the vehicle R
the characteristics of the object with which
the vehicle has collided
Factors which can only be seen and measured
after a collision has occurred do not play a deci-
sive role in the deployment of an air bag. Nor do
they provide an indication of air bag deploy-
ment.
The vehicle can be deformed considerably, with-
out an air bag being deployed. This is the case if
only parts which are relatively easily deformed
are affected and the rate of deceleration is not
high. Conversely, air bags may be deployed even
though the vehicle suffers only minor deforma-
tion. This is the case if, for example, very rigid
vehicle parts such as longitudinal body mem-
bers are hit, and sufficient deceleration occurs
as a result.
If the restraint system control unit detects a side
impact or if the vehicle rolls over, the applicable
components of the restraint system are activa-
ted independently of each other depending on
the apparent type of accident. R
Side impact air bags on the side where the
impact takes place, independently of the
Emergency Tensioning Device and the use of
the seat belt on the driver's seat and outer
seats in the second row
The side impact air bag on the front-
passenger side deploys under the following
conditions: -
the OCS system detects that the front-
passenger seat is occupied or -
the belt tongue is engaged in the belt
buckle of the front-passenger seat R
Window curtain air bag on the side of impact,
independently of the use of the seat belt and
independently of whether the front-
passenger seat is occupied R
Emergency Tensioning Devices, if the system
determines that deployment can offer addi-
tional protection in this situation R
Window curtain air bags on the driver's and
front-passenger side in certain situations
when the vehicle rolls over, if the system
determines that deployment can offer addi- tional protection to that provided by the seat
belt
i Not all air bags are deployed in an accident .
The different air bag systems work independ-
ently of each other.
How the air bag system works is determined
by the severity of the accident detected,
especially the vehicle deceleration or accel-
eration and the apparent type of accident: R
Frontal collision R
Side impact R
Rollover
PRE-SAFE ®
(anticipatory occupant
protection system)
Introduction In certain hazardous situations, PRE-SAFE ®
takes pre-emptive measures to protect the vehi-
cle occupants.
Important safety notes
! 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.
Despite your vehicle being equipped with the
PRE-SAFE ®
system, the possibility of personal
injuries occurring as a result of an accident can-
not be eliminated. Always adapt your driving
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-
uationsOccupant safety 57
Safety Z

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 47).
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 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: R
the hazard warning lamps are activated R
the emergency lighting is activated R
the vehicle doors are unlocked58
Occupant safety
Safety

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.
Brakes 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 66).
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" section
( Y
page 67).
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.
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 if: 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 garagesDriving safety systems 67
Safety Z

R
a narrow vehicle is traveling in front, e.g. a
motorbike R
a vehicle is traveling in front on a different line R
vehicles quickly move 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
glare on the camera system, e.g. from the sun
being low in the sky R
darkness R
or 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
under20 mph(30 km/h) : if you depress the
brake pedal, BAS PLUS is activated. The
increase in brake pressure will be carried out at
the last possible moment.
When driving at a speed
above20 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 (25 0 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 57). X
Keep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
BAS P LUS is deactivated and the brakes func-
ti
on as usual, 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.
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.68
Driving safety systems
Safety

Important safety notes In particular, th e detection of obstacles can be
impaired if: R
there is dirt on th e sensor s or anythin g else
covering th e sensor sR
there is snow or heav y rainR
there is interferenc e by other radar source sR
there are stron g radar reflections, for exam-
ple in parking garages R
a narrow vehicl e is traveling in front, e.g. a
motorbike R
a vehicl e is traveling in fron t on a differen t lin eR
th e vehicl e is ne w or after a servic e on th e
COLLISION PREVENTION ASSIST PLU S sys-
te m
Observ e th e note s in th e section on breaking -
in ( Y
page 144).
Followin g damag e to th e fron t en d of th e vehicle,
have th e configuration and operation of th e
radar sensor checke d at a qualified specialist
workshop. This also applie s to collision s at slow
speeds wher e there is no visible damag e to th e
fron t of th e vehicle.
Activating/deactivating The COLLISION PREVENTION ASSIST PLU S is
automatically active after switching on th e igni-
tion .
You can activat e or deactivat e COLLISION PRE -
VENTION ASSIST PLU S in th e on-board com-
puter ( Y
page 222). When deactivated, th e dis-
tance warning function and th e autonomous
braking function are also deactivated.
If COLLISION PREVENTION ASSIST PLU S is
deactivated, th e