brake sensor MERCEDES-BENZ S-Class 2011 W221 Owner's Manual

Alertness Assistantsee ATTENTION ASSIST
Alternative route ............................... 169
Ambient light Adjusting (COMAND) .....................260
AMG menu (on-board computer) ..... 371
Anti-lock Braking System see ABS
Anti-Theft Alarm system
see ATA
Anti-theft system
ATA (Anti-Theft Alarm system) .........73
Ashtray ............................................... 430
Assistance menu (on-board
computer) .......................................... 375
ATA (Anti-Theft Alarm system) Activating/deactivating ...................73
Function ........................................... 73
Switching off the alarm ....................73
ATTENTION ASSIST ........................... 347
Activating/deactivating (on-
board computer) ............................ 376
Display message ............................ 401
Audio AUX jack .................................. 234
Audio CD/DVD or MP3 mode Switching to ................................... 218
Audio DVD
Pause function ............................... 249
Stop function ................................. 220
Audio format
Setting (audio DVD mode) .............223
Audio menu (on-board computer) .... 370
AUTO lights see Light sensor
Automatic car wash .......................... 453
Automatic engine start Using the ECO start/stop
function ......................................... 303
Automatic engine stop
Using the ECO start/stop
function ......................................... 303
Automatic transmission
DIRECT SELECT lever .....................306
Display message ............................ 409
Driving tips .................................... 309
Emergency running mode ..............313
Kickdown ....................................... 309Malfunction .................................... 313
Program selector button ................310
Pulling away ................................... 301
Starting .......................................... 301
Autostore ........................................... 210
B
Back button ....................................... 117
Bag hook ............................................ 426
Bang & Olufsen sound system ......... 135
BAS (Brake Assist System) ................. 67
BAS PLUS (Brake Assist System
Plus*) .................................................... 68
Battery Charging ........................................ 470
Checking (SmartKey) .......................80
Display message ............................ 399
Important safety guidelines
(SmartKey) ....................................... 79
Jump-starting ................................. 471
Replacing (SmartKey) ......................80
Safety notes .................................. 468
Voltage (on-board computer) .........371
Belt
see Seat belts
Bird's-eye view .................................. 181
Blind see Roller sunblind
Blind Spot Assist ............................... 352
Activating/deactivating (on-
board computer) ............................ 376
Display message ............................ 404
Bluetooth ®
Activating/deactivating .................145
Authorizing a device ......................146
Connecting devices .......................145
Devices .......................................... 146
External authorization ............147, 194
General information .......................145
Interface ........................................ 192
Revoking authorization ..................147
Settings ......................................... 145
Telephony .............................. 191, 192
Bluetooth ®
interface
Telephony ...................................... 191
Bluetooth ®
interface telephony
Conditions ..................................... 192
Index5

Bluetooth®
telephone list ................. 193
Brake fluid Notes ............................................. 514
Brake fluid level ................................ 451
Brake lamp (display message) ......... 395
Brake lamps Adaptive ........................................... 69
Brakes
ABS .................................................. 67
BAS .................................................. 67
BAS PLUS ........................................ 68
Brake fluid (notes) .........................514
Display message ............................ 389
High-performance brake system ....322
Important safety notes ..................320
Maintenance .................................. 321
Warning lamp ................................. 413
Breakdown
see Flat tire
Bulb
Infrared light .................................. 280
Bulbs
High-beam spot lamp ..................... 280
Overview ........................................ 279
C
CAC (Customer Assistance Center) .........27
California
Important notice for retail
customers and lessees ....................25
Call
Accepting ...................................... 197
Connecting .................................... 197
Rejecting ....................................... 197
Calling up a malfunction
see Display messages
Calling voicemail ............................... 198
Call list Opening and selecting an entry .....205
Saving an entry in the address
book .............................................. 206
Call lists ............................................. 205
Displaying details ........................... 201
Storing an entry which has not yet
been stored ................................... 206
Call waiting ........................................ 198
Capacities
see Technical data
Care
Carpets .......................................... 459
Car wash ........................................ 453
Display ........................................... 457
Gear or selector lever ....................458
Headlamps ..................................... 456
Matte finish ................................... 455
Night View Assist Plus ...................457
Notes ............................................. 452
Paint .............................................. 454
Plastic trim .................................... 458
Power washer ................................ 454
Rear view camera .......................... 456
Roof lining ...................................... 459
Seat belt ........................................ 459
Seat covers .................................... 458
Sensors ......................................... 456
Steering wheel ............................... 458
Tail pipes ....................................... 457
Trim strips ..................................... 458
Washing by hand ........................... 454
Wheels ........................................... 454
Windows ........................................ 455
Wiper blades .................................. 456
Wooden trim .................................. 458
cargo compartment
Power closing feature ......................84
Cargo tie down rings ......................... 425
Car pool lanes .................................... 167
Category Satellite radio ................................ 215
CD
Copy protection ............................. 225
Data medium ................................. 225
General information .......................225
Inserting ........................................ 217
Multisession .................................. 224
Playback options ........................... 224
Selecting a medium .......................221
Selecting a track ............................ 221
CD/audio DVD or MP3 mode
Switching to (Rear Seat
Entertainment System) ..................2486Index

O
Occupant Classification System
(OCS) Faults ............................................... 52
Operation ......................................... 48
System self-test ............................... 51
Occupant safety
Children in the vehicle .....................60
System overview .............................. 42
Octane number (fuel) ........................ 512
Odometer ........................................... 368
Off-map .............................................. 171
Off-road .............................................. 171
4MATIC .......................................... 339
Oil
see Engine oil
On-board computer
AMG menu ..................................... 371
Assistance menu ........................... 375
Audio menu ................................... 370
Display messages ..........................380
Important safety notes ..................364
Instrument cluster submenu ..........377
Lighting submenu .......................... 377
Message memory .......................... 380
Navigation menu ............................ 369
Operating video DVD .....................371
Operation ....................................... 365
Overview of menus ........................367
Service menu ................................. 377
Settings menu ............................... 377
Standard display submenu ............368
Telephone menu ............................ 374
Trip menu ...................................... 368
Opening height restriction for
trunk lid .............................................. 261
Operating system see On-board computer
Orientation in direction of travel ..... 181
Outside lighting Delayed switch-off (COMAND) .......259
Outside temperature
Display ........................................... 365
Overhead control panel
Overview .......................................... 36
Override feature
Rear side windows ...........................65P
Paint code number ............................ 509
Paintwork (cleaning instructions) ... 454
Panic alarm .......................................... 66
Panorama roof with power tilt/
sliding panel Opening/closing .............................. 95
Resetting ......................................... 97
Parking ............................................... 316
Parking aid Parking Guidance ........................... 342
PARKTRONIC ................................. 339
Rear view camera .......................... 346
Parking brake
Display message ............................ 389
Electric parking brake ....................317
Parking Guidance .............................. 342
Display message ............................ 405
Parking lamp (display message) ...... 396
Parking position Exterior mirror on the front-
passenger side ............................... 111
Exterior mirrors (COMAND) ...........258
PARKTRONIC
Activating/deactivating .................341
Function/notes ............................. 339
Malfunction .................................... 342
Problem ......................................... 342
Range of the sensors .....................340
Warning display ............................. 341
Passcode
Entering ................................. 147, 194
Pause function ................................... 220
Pedals ................................................. 319
Permanent four-wheel drive see 4MATIC
Phone book
Calling up ....................................... 201
Creating an entry ........................... 203
Deleting an entry ........................... 204
Introduction ................................... 200
Plastic trim (cleaning instructions) . 458
Playback options .............. 224, 229, 234
Point of interest Category ........................................ 161
Entering ......................................... 160
Entering a name ............................. 160Index15

Entering a phone number ..............161
Entering using the map ..................163
ZAGAT ®
rating service ...................163
Point of interest icon
Setting ........................................... 181
Point of interest list .......................... 162
Power closing feature ......................... 84
Power steering Filling capacity ............................... 511
Power washers .................................. 454
Power windows see Side windows
Pre-emptive occupant safety
system
see PRE-SAFE ®
system
PRE-SAFE ®
Brake (vehicles with
DISTRONIC PLUS) Activating/deactivating (on-
board computer) ............................ 376
Function/notes ................................ 71
PRE-SAFE ®
Brake (vehicles with
DISTRONIC PLUS) Display message ............................ 383
Warning lamp ................................. 419
PRE-SAFE ®
system
Display message ............................ 383
Operation ......................................... 53
Previous destinations ....................... 178
Product information ............................ 24
Programmable button ....................... 118
Program selector button .................. 310
Pulling away Automatic transmission .................301
PULSE
see Massage function
R
RACETIMER (on-board computer) .... 372
Radar sensor system Display message ............................ 403
Radar sensor system (on-board
computer) .......................................... 378
Radiator cover ................................... 447
Radio
Changing stations (on-board
computer) ...................................... 370
HD Radio™ .................................... 212
see separate operating instructions
Radio-controlled equipment
Assembly ....................................... 442
Radio mode
Switching to ................................... 208
Radio station
Storing ........................................... 210
Range (on-board computer) ............. 368
Read-aloud function .......................... 172
Read-aloud speed Setting ........................................... 143
Real-time traffic reports ........... 172, 175
Rear compartment Activating/deactivating climate
control ........................................... 289
Setting the airflow .........................292
Setting the air vents ..............295, 296
Setting the temperature ................291
Rear-compartment screens .............. 137
Rear-compartment seats .................. 102
Rear fog lamp (display message) ..... 396
Rear Seat Entertainment System Audio CD/DVD and MP3 mode .....247
AUX mode ............................. 139, 255
Changing the batteries ..................243
Remote control .............................. 138
Several users ................................. 245
System settings ............................. 246
Using headphones .........................244
Using the main loudspeaker ..........244
Video DVD mode ........................... 250
Wireless headphones .....................140
Rear seats
Overview .......................................... 39
Rear view camera .............................. 346
Rear view camera (cleaning
instructions) ...................................... 456
Rear-view mirror Dipping (automatic) .......................110
Rear window blind ............................ 429
see Rear window roller sunblind 16Index

Seat beltsAdjusting the driver's and front-
passenger seat belt .........................58
Adjusting the height ......................... 58
Automatic comfort-fit feature ..........60
Belt force limiters ............................ 59
Cleaning ......................................... 459
Correct usage .................................. 56
Emergency Tensioning Devices ........ 59
Fastening ......................................... 57
Important safety guidelines .............55
Releasing ......................................... 58
Safety guidelines ............................. 43
Special seat belt retractor ...............62
Switching belt adjustment on/off
(on-board computer) ......................378
Warning lamp ................................. 414
Warning lamp (function) ................... 58
Seat heating
Indicator lamp (Malfunction) ..........107
Seats
Adjusting (electrically) ...................102
Adjusting lumbar support ..............106
Adjusting the head restraint ..........104
Cleaning the cover .........................458
Correct driver's seat position ........100
Important safety notes ..................101
Multicontour seat .......................... 106
Storing settings (memory
function) ........................................ 111
Switching seat heating on/off .......106
Switching the seat ventilation on/
off .................................................. 107
Seat ventilation
Indicator lamp (Malfunction) ..........107
Sensors (cleaning instructions) ....... 456
Service indicator see Service interval display
Service interval display .................... 451
Displaying a service message (on-
board computer) ............................ 452
Service menu (on-board computer) . 377
Service products Brake fluid ..................................... 514
Capacities ...................................... 511
Coolant (engine) ............................ 515
Engine oil ....................................... 513
Fuel ................................................ 512Important safety notes ..................510
Notes ............................................. 510
Refrigerant (air-conditioning
system) .......................................... 514
Washer fluid ................................... 515
Settings
On-board computer .......................377
Setting the air distribution
COMAND ....................................... 263
Shift ranges ....................................... 311
Showing the distance display (on-
board computer) ............................... 375
Side impact air bag ............................. 46
Side marker lamp (display
message) ............................................ 396
Side windows Convenience closing feature ............91
Convenience opening feature ..........90
Important safety information ...........89
Opening/closing .............................. 90
Resetting ......................................... 92
Troubleshooting ............................... 92
Skipping back
CD/DVD mode .............................. 222
Skipping forwards
CD/DVD mode .............................. 222
Sliding sunroof
Important safety information ...........93
Opening/closing .............................. 94
Resetting ......................................... 94
Troubleshooting ............................... 97
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery .......................80
Changing the programming .............79
Checking the battery .......................80
Convenience closing feature ............91
Convenience opening feature ..........90
Display message ............................ 411
Important safety notes ....................76
Malfunction ...................................... 81
Starting the engine ........................301
Snow chains ...................................... 482
Socket ................................................ 431
Dashboard ..................................... 432
Rear compartment .........................432
Trunk ............................................. 43218Index

The brakes will function as usual once you
release the brake pedal. BAS is deactivated.GWarning
If the BAS malfunctions, the brake system still
functions, but without the additional brake
boost available that the BAS would normally
provide in an emergency braking maneuver.
Therefore, the braking distance may increase.
BAS PLUS (Brake Assist PLUS)
GWarning
Observe "Important safety notes"
( Y page 66).
At speeds above approximately
20 mph (30 km/h), BAS PLUS assists you
when braking in hazardous situations and
uses the radar sensor system to evaluate the
traffic conditions.
GWarning!
BAS PLUS is a convenience system designed
to assist the driver during vehicle operation.
The responsibility for the vehicle speed and
the distance to the vehicle ahead, including
most importantly brake operation to assure
safe stopping distance, always remains with
the driver.
Always pay attention to traffic conditions
even while BAS PLUS is switched on.
Otherwise, you may not be able to recognize
dangerous situations until it is too late and
could cause an accident. Personal or fatal
injury to you or others may be the result.
i This equipment has been approved by the
FCC as a "Vehicular Radar System". The
radar sensor system is intended for use in
an automotive radar system only. Removal,
tampering, or altering of the device will void
any warranties, and is not permitted by the
FCC. Do not tamper with the device in any
way.
Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
BAS PLUS can detect obstacles that are in the
path of your vehicle for an extended period of
time. Should you approach a detected
obstacle quickly, BAS PLUS calculates the
braking force necessary to avoid a rear-end
collision. Should you additionally apply the
brakes, BAS PLUS will automatically increase
the braking force to a level suitable for the
traffic conditions.
If BAS PLUS demands particularly high
braking force, PRE-SAFE ®
is activated
simultaneously.XKeep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will work normally again when:
R you release the brake pedal
R no obstacle is detected in front of your
vehicle
R there is no longer any danger of a rear-end
collision
BAS PLUS is then deactivated.
At speeds up to approximately
40 mph (70 km/h), BAS PLUS can also detect
stationary obstacles, for example, stopped or
parked vehicles.
For BAS PLUS to assist you when driving, the
radar sensor system must be switched on and
operational. You can check this by activating
DISTRONIC PLUS ( Y page 325) or via the
"radar sensor" function in the on-board
computer( Y page 378).
GWarning!
BAS PLUS will only respond with brake
assistance if it has clearly detected an object.
Detection can be impeded by
R dirty or covered sensors
R snowfall or heavy rain
68Driving safety systemsSafety

Rdisturbance from other radar sources
R strong radar reflection such as in parking
garages
BAS PLUS uses radar signals that are not
reflected well by narrow objects and
absorptive materials. For this reason BAS
PLUS will not react to persons, animals, and
approaching traffic or cross-traffic.
BAS PLUS may not detect narrow vehicles
driving in front of you, such as motorcycles
and vehicles driving offset from your vehicle
center.
Following a collision or accident-related
damage to the front end of the vehicle, have
the configuration and operation of the radar
sensors checked at an authorized Mercedes-
Benz Center.
If BAS PLUS is not available due to a
malfunction in the radar sensor system, the
brake system remains available with full
brake boosting effect and BAS.
Adaptive brake lights
i Adaptive brake lamps are only available in
the USA and only on the S 600 and S65
AMG.
If you brake sharply from a speed of more
than 30 mph (50 km/h) or if braking is
assisted by BAS or BAS PLUS, the brake
lamps flash rapidly. In this way, traffic
traveling behind you is warned in an even
more noticeable manner.
If you brake from a speed of more than
40 mph (70 km/h) to a standstill, the hazard
warning lamps are switched on automatically
when the vehicle is stationary. If the brakes
are applied again, the brake lamps light up
continuously. The hazard warning lamps
switch off automatically if you drive faster
than 6 mph (10 km/h) again. You can also
switch off the hazard warning lamps using the
hazard warning lamp button ( Y page 276).
ESP ®
(Electronic Stability Program)
Important safety notesGWarning
Observe "Important safety notes"
( Y page 66).
If ESP ®
detects that the vehicle is deviating
from the direction desired by the driver, one
or more wheels are braked to stabilize the
vehicle. If necessary, the engine output is also
modified to keep the vehicle on the desired
course within physical limits. ESP ®
assists
the driver when pulling away on wet or
slippery roads. ESP ®
can also stabilize the
vehicle during braking.
If ESP ®
intervenes, the ÷ warning lamp
flashes in the instrument cluster.
GWarning
Under no circumstances should you
deactivate ESP ®
when the ÷ ESP®
warning lamp in the instrument cluster
flashes. Proceed as follows:
R when driving off, apply as little throttle as
possible.
R while driving, ease up on the accelerator
pedal.
R adapt your speed to suit the prevailing road
and weather conditions.
failure to observe these guidelines could
cause the vehicle to skid. ESP ®
cannot
prevent accidents resulting from excessive
speed.
! Vehicles without 4MATIC: switch the
ignition off when:
R the electric parking brake is being tested
using a brake dynamometer.
R the vehicle is being towed with the front/
rear axle raised.
Application of the brakes by ESP ®
may
otherwise destroy the brake system.
Driving safety systems69SafetyZ

Immediately brake your vehicle to increase
the distance between your vehicle and the
vehicle driving in front of you. The warning
sound is intended as a final caution that you
have not interceded with your own braking
inputs to avoid a potentially dangerous
situation. Do not wait for the operation of the
warning signal to intercede with your own
braking, as that will result in potentially
dangerous emergency braking which will not
always result in an impact being avoided.
Tailgating increases the risk of an accident.GWarning!
The PRE-SAFE ®
Brake is a convenience
system designed to assist the driver during
vehicle operation. The responsibility for the
vehicle speed and the distance to the vehicle
ahead, including most importantly brake
operation to assure safe stopping distance,
always remains with the driver.
Always pay attention to traffic conditions
even while the PRE-SAFE ®
Brake is switched
on. Otherwise, you may not be able to
recognize dangerous situations until it is too
late and could cause an accident resulting in
personal or fatal injury to you or others.
i USA only: this device was approved as a
"Vehicular Radar System" by the FCC. The
radar sensor system is only intended for
use with radar systems in passenger
vehicles. Removing, tampering with, or
altering the device will void any warranties
and is not permitted by the FCC. Do not
tamper with the device in any way.
Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
i Canada only: this device complies with
RSS-210 regulations of Industry Canada.
Operation is subject to the following two
conditions:
1. This device may not cause interference,
and
2. This device must withstand any
interference received, including
interference that may cause undesired
operation.
Removing, tampering with, or altering the
device will void any warranties and is not
permitted. Do not tamper with the device
in any way.
Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
With the help of the radar sensor system,
PRE-SAFE ®
Brake can detect obstacles that
are in front of your vehicle for an extended
period of time. If you approach an obstacle
and PRE-SAFE ®
Brake detects a risk of a
collision, the system will initially alert you
both visually and acoustically. If you do not
brake or steer, the vehicle will at first
automatically brake slightly. In the event of
an increased risk of a collision, PRE-SAFE ®
is
activated ( Y page 53). If the risk of collision
remains and you do not brake, take evasive
action or accelerate significantly, the vehicle
may perform automatic emergency braking.GWarning!
The PRE-SAFE ®
Brake will only respond with
brake assistance if it has clearly detected an
object. Detection can be impeded by:
R dirty or covered sensors
R snowfall or heavy rain
R disturbance from other radar sources
R strong radar reflection such as in parking
garages
The PRE-SAFE ®
Brake uses radar signals that
are not reflected well by narrow objects and
absorptive materials. For this reason the PRE-
SAFE ®
Brake will not react to persons,
animals, and approaching traffic or cross-
traffic.
The PRE-SAFE ®
Brake may not detect narrow
vehicles driving in front of you, such as
motorcycles and vehicles driving offset from
your vehicle center.
72Driving safety systemsSafety

In order to maintain an appropriate distance
from the vehicle in front and thus prevent a
collision, you must apply the brakes yourself.
At speeds up to approximately
40 mph (70 km/h), PRE-SAFE ®
Brake may
also detect stationary obstacles, for example
stopped or parked vehicles.GWarning!
If you do not receive visual or acoustic
warning signals, the PRE-SAFE ®
Brake may
R not have recognized the collision risk
R have been deactivated
R be malfunctioning
Apply the brakes yourself to avoid a collision.
XTo activate/deactivate: activate or
deactivate PRE-SAFE ®
Brake in the on-
board computer ( Y page 376).
After activation, the Ä symbol is
displayed on the left in the instrument
cluster.
For PRE-SAFE ®
Brake to assist you when
driving, the radar sensor system must be
switched on and operational.
PRE-SAFE ®
Brake does not always detect
complex traffic situations properly. You can
terminate the braking action of PRE-SAFE ®
Brake in a non-critical driving situation at any
time if:
R an acoustic and visual warning occurs.
R the vehicle brakes.
To stop the braking action, you can either
depress the accelerator pedal further,
activate kickdown or release the brake pedal.
The braking action of PRE-SAFE ®
Brake is
ended automatically if:
R you maneuver to avoid the obstacle.
R your speed drops below approximately
9 mph (15 km/h).
R there is no longer an obstacle detected in
front of your vehicle.
R there is no longer any danger of a collision.
Following a collision or collision-related
damage to the front end of the vehicle, have
the configuration and operation of the radar
sensors checked. Choose a qualified
specialist workshop which has the necessary
specialist knowledge and tools for the work
required. Mercedes-Benz recommends that
you use an authorized Mercedes-Benz Center
for this purpose.
Anti-theft systems
Immobilizer
The immobilizer prevents your vehicle from
being started without the correct key.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. The
engine can be started by anyone with a valid
key that is left inside the vehicle.
XTo activate with the SmartKey: remove
the SmartKey from the ignition lock.XTo activate with KEYLESS-GO: switch the
ignition off and open the driver's door.XTo deactivate: switch on the ignition.
i
The immobilizer is always deactivated
when you start the engine.
ATA (Anti-Theft Alarm system)
A visual and audible alarm is triggered if the
alarm system is armed and you open:
R a door
R the vehicle with the mechanical key
R the trunk lid
R the hood
The alarm is not switched off, even if you
close the open door that has triggered it, for
example.
Anti-theft systems73SafetyZ

Instructions included in your vehicle literature
portfolio. You may otherwise not receive all
necessary safety information and warning for
the operation of your vehicle.GWarning!
The DISTRONIC PLUS requires familiarity with
its operational characteristics. We strongly
recommend that you review the following
information carefully before operating the
system.
GWarning
When DISTRONIC brakes, the brake pedal is
pulled back (i.e. operated automatically). The
area around the pedal must not be blocked by
obstacles:
R do not place any objects in the footwell.
R ensure that floormats and carpets are fixed
securely. In particular, do not place several
floormats on top of one another.
R do not place your foot under the brake
pedal, as it could become trapped.
Non-compliance could lead you to cause an
accident in which you and/or others could be
seriously injured.
GWarning!
The DISTRONIC PLUS is a convenience
system. Its speed adjustment reduction
capability is intended to make cruise control
more effective and usable when traffic speeds
vary. It is not however, intended to, nor does
it, replace the need for extreme care.
The responsibility for the vehicle's speed,
distance to the preceding vehicle and, most
importantly, brake operation to ensure a safe
stopping distance, always remains with the
driver.
The DISTRONIC PLUS cannot take street and
traffic conditions into account.
Complex driving situations are not always
fully recognized by the DISTRONIC PLUS. This
could result in wrong or missing distance
warnings.
If you want DISTRONIC PLUS to assist you,
the radar sensor system must be activated
( Y page 378) and operational.
If there is no vehicle in front, DISTRONIC
PLUS operates in the same way as cruise
control in the speed range between
20 mph (Canada: 30 km/h) and
120 mph (Canada: 200 km/h). If there is a
vehicle in front, DISTRONIC PLUS is
operational in the speed range between
0 mph (Canada: 0 km/h) and
120 mph (Canada: 200 km/h).
Do not use DISTRONIC PLUS while driving on
roads with steep gradients.
As DISTRONIC PLUS emits radar waves, it can
simulate radar detectors used by police
authorities. You can refer to the applicable
chapter in the Operator's Manual if there is
any question concerning this.
i USA only:
This device has been approved by the FCC
as a “Vehicular Radar System”. The radar
sensor is intended for use in an automotive
radar system only. Removal, tampering, or
altering of the device will void any
warranties, and is not permitted by the
FCC. Do not tamper with, alter, or use in
any non-approved way.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.GWarning!
The DISTRONIC PLUS adaptive cruise control
is not a substitute for active driving
involvement. It does not react to pedestrians
or on stationary objects, nor does it recognize
or predict the curvature and lane layout or the
movement of preceding vehicles. The
DISTRONIC PLUS can only apply a maximum
of 40% of the vehicle's braking power.
The DISTRONIC PLUS may not detect narrow
vehicles possibly driving in front of you, such
as motorcycles and vehicles driving in an
offset formation.
326Driving systemsDriving and parking