brakes MERCEDES-BENZ GLE SUV 2017 W166 Owner's Manual

AUX jacks
CD/DVD drive .............................. .287
Axle load, permissible (trailer tow-
ing) ...................................................... 384
B
Back button ....................................... 282
Bag hook ............................................ 293
Ball coupling
Installing ........................................ 217
Removing ....................................... 221
BAS (Brake Assist System) ................. 63
Battery (SmartKey)
Checking .......................................... 77
Important safety notes .................... 77
Replacing ......................................... 77
Battery (vehicle)
Charging ........................................ 333
Display message ............................ 252
Important safety notes .................. 331
Jump starting ................................. 333
Overview ........................................ 331
Belt
see Seat belts
Blind Spot Assist
Activating/deactivating ................. 232
Display message ............................ 259
Notes/function .............................. 201
Trailer towing ................................. 203
see Active Blind Spot Assist
Blootooth
®
Connecting a different mobile
phone ............................................ 286
BlueTEC
Adding DEF ....................................1 50
BlueTEC (DEF) ....................................3 76
Bluetooth
®
Searching for a mobile phone ........2 85
see also Digital Operator's Man-
ual ..................................................2 81
Telephony ...................................... 284
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 244
Notes ............................................. 378 Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Display message ............................ 250
Brakes
ABS ..................................................6 3
Adaptive Brake Assist ...................... 65
BAS .................................................. 63
Brake fluid (notes) ......................... 378
Display message ............................ 239
High-performance brake system .... 160
Hill start assist ............................... 136
Important safety notes .................. 158
Maintenance .................................. 159
Parking bra ke ................................ 154
R

iding tips ...................................... 158
Warning lamp ................................. 270
Breakdown
Where will I find...? ........................ 326
see Flat tire
see Towing away
Brightness control (instrument
cluster lighting) ................................... 34
Bulbs
see Replacing bulbs
C
CaliforniaImportant notice for retail cus-
tomers and lessees .......................... 26
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
360° camera ................................. 323
Car wash ........................................ 319
Carpets .......................................... 325
Display ........................................... 324
Exhaust pipe .................................. 323
Exterior lights ................................ 322
Gear or selector lever .................... 324
Interior ........................................... 324
Matte finish ................................... 321
Notes ............................................. 319
Paint .............................................. 321
6Index

Blind Spot Assist ............................ 201
Cruise control ................................ 166
Display message ............................ 255
Driving Assistance Plus package ... 204
HOLD function ............................... 179
Lane Keeping Assist ...................... 203
Level control (vehicle with the Off-
Road Engineering package) ........... 176
Rear view camera .......................... 191
Traffic Sign Assist .......................... 200
Driving tips
Automatic transmission ................. 143
Brakes ........................................... 158
Break-in period .............................. 131
Distance Pilot DISTRONIC ............. 174
Downhill gradient ........................... 158
Drinking and driving ....................... 157
Driving in winter ............................. 161
Driving on flooded roads ................ 160
Driving on sand .............................. 164
Driving on wet roads ...................... 160
Driving over obstacles ................... 164
Exhaust check ............................... 157
Fuel ................................................ 156
General .......................................... 156
Hydroplaning ................................. 160
Icy road surfaces ........................... 161
Limited braking efficiency on sal-
ted roads ....................................... 159
Off-road driving .............................. 162
Off-road fording ............................. 161
Snow chains .................................. 343
The first 1000 miles (1500 km) ..... 131
Tire ruts ......................................... 164
Towing a trailer .............................. 216
Traveling uphill ............................... 165
Wet road surface ........................... 159
DSR (Downhill Speed Regulation)
Display message ............................ 257
Function/notes ............................. 210
DVD video
Operating (on-board computer) ..... 229
see also Digital Operator's Man-
ual .................................................. 281
DYNAMIC SELECT controller
Automatic transmission ................. 139E
EASY-ENTRY featureActivating/deactivating ................. 234
Function/notes ............................. 101
EASY-EXIT feature
Crash-responsive ........................... 102
Function/notes ............................. 101
Switching on/off ........................... 234
EASY-PACK cargo compartment
management system ........................ 295
EBD (electronic brake force distri-
bution)
Display message ............................ 241
Function/notes ................................ 69
ECO display
Function/notes ............................. 157
On-board computer ....................... 226
ECO start/stop function
Automatic engine start .................. 137
Automatic engine switch-off .......... 136
Deactivating/activating ................. 137
General information ....................... 136
Important safety notes .................. 136
Introduction ................................... 136
Electronic Stability Program
see ESP
®(Electronic Stability Program)
Emergency
Automatic measures after an acci-
dent ................................................. 56
Emergency release
Driver's door .................................... 81
Vehicle ............................................. 81
Emergency spare wheel
General notes ................................ 367
Important safety notes .................. 366
Removing ....................................... 367
Storage location ............................ 367
Stowing .......................................... 367
Emergency Tensioning Devices
Activation ......................................... 53
Emergency unlocking
Tailgate ............................................ 85
Emissions control
Service and warranty information .... 26
Engine
Check Engine warning lamp ........... 277
Display message ............................ 251
10Index

VideoOperating the DVD ......................... 229
see also Digital Operator's Man-
ual .................................................. 281
VIN ...................................................... 372
Seat ............................................... 373
Type plate ...................................... 372
W
Warning and indicator lamps ABS ................................................ 271
Brakes ........................................... 270
Check Engine ................................. 277
Coolant .......................................... 277
Distance Pilot DISTRONIC ............. 279
Distance warning ........................... 279
ESP
®.............................................. 273
ESP®OFF ....................................... 274
Fuel tank ........................................ 277
Overview .......................................... 34
Parking brake ................................ 276
PASSENGER AIR BAG ...................... 42
Reserve fuel ................................... 277
Restraint system ............................ 276
Seat belt ........................................ 268
Tire pressure monitor .................... 280
Warranty .............................................. 26
Washer fluid
Display message ............................ 266
Weather display (COMAND)
see also Digital Operator's Man-
ual .................................................. 281
Wheel and tire combinations
Tires ............................................... 366
Wheel bolt tightening torque ........... 365
Wheel chock ...................................... 362
Wheels
Changing a wheel .......................... 361
Checking ........................................ 341
Cleaning ......................................... 321
Emergency spare wheel ................. 366
Important safety notes .................. 341
Information on driving .................... 341
Interchanging/changing ................ 361
Mounting a new wheel ................... 364
Mounting a wheel .......................... 362
Overview ........................................ 341 Removing a wheel .......................... 364
Snow chains .................................. 343
Storing ........................................... 362
Tightening torque ........................... 365
Wheel size/tire size ....................... 366
Window curtain air bag
Display message ............................ 247
Operation ......................................... 48
Windows
see Side windows
Windshield
Defrosting ...................................... 126
Windshield washer fluid
see Windshield washer system
Windshield washer system
Adding washer fluid ....................... 317
Important safety notes .................. 379
Windshield wipers
Problem (malfunction) ................... 118
Rear window wiper ........................ 115
Replacing the wiper blades ............ 115
Switching on/off ........................... 114
Winter drivin
g
Slippery road surfaces ................... 161
Winter operation
Overview ........................................ 343
Radiator cover ............................... 315
Winter tires
M+S tires ....................................... 343
Wiper blades
Cleaning ......................................... 322
Replacing ....................................... 115
Replacing (rear window) ................ 117
Replacing (windshield) ................... 115
Wooden trim (cleaning instruc-
tions) .................................................. 325
Workshop
see Qualified specialist workshop
Z
ZONE functionSwitching on/off ........................... 126
24Index

Mercedes-Benz USA, LLC
3 Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Customer Relations Department
Mercedes-Benz Canada, Inc.
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9
Reporting safety defects
USA only:
The following text is reproduced as required of
all manufacturers under Title 49, Code of U.S.
Federal Regulations, Part 575 pursuant to the
National Traffic and Motor Vehicle Safety Act of
1966.
If you believe that your vehicle has a defect
which could cause a crash or could cause injury
or death, you should immediately inform the
National Highway Traffic Safety Administration
(NHTSA) in addition to notifying Mercedes-Benz
USA, LLC.
If NHTSA receives similar complaints, it may
open an investigation, and if it finds that a safety
defect exists in a group of vehicles, it may order
a recall and remedy campaign. However, NHTSA
cannot become involved in individual problems
between you, your dealer, or Mercedes-Benz
USA, LLC.
To contact NHTSA, you may call the Vehicle
Safety Hotline toll-free at 1-888-327-4236
(TTY: 1-800-424-9153); go to http://
www.safercar.gov; or write to: Administrator,
NHTSA, 400 Seventh Street, SW., Washington,
DC 20590.
You can also obtain other information about
motor vehicle safety from
http://www.safercar.gov
Limited Warranty
!
Follow the instructions in this manual about
the proper operation of your vehicle as well as
about possible vehicle damage. Damage to
your vehicle that arises from culpable contra-
ventions against these instructions is not cov-
ered either by the Mercedes-Benz Limited
Warranty or by the New or Used-Vehicle War-
ranty.
QR codes for the rescue card
The QR codes are secured in the fuel filler flap
and on the opposite side on the B-pillar. In the
event of an accident, rescue services can use
the QR code to quickly find the appropriate res- cue card for your vehicle. The current rescue
card contains the most important information
about your vehicle in a compact form, e.g. the
routing of the electric cables.
You can find more information under http://
portal.aftersales.i.daimler.com/public/
content/asportal/en/communication/
informationen_fuer/QRCode.html.
Data stored in the vehicle
Data storage
A wide range of electronic components in your
vehicle contain data memories.
These data memories temporarily or perma-
nently store technical information about:
Rthe vehicle's operating state
Rincidents
Rmalfunctions
In general, this technical information docu-
ments the state of a component, a module, a
system or the surroundings.
These include, for example:
Roperating conditions of system components,
e.g. fluid levels
Rthe vehicle's status messages and those of its
individual components, e.g. number of wheel
revolutions/speed, deceleration in move-
ment, lateral acceleration, accelerator pedal
position
Rmalfunctions and defects in important system
components, e.g. lights, brakes
Rvehicle reactions and operating conditions in
special driving situations, e.g. air bag deploy-
ment, intervention of stability control sys-
tems
Rambient conditions, e.g. outside temperature
30Introduction

Rvehicles with the memory function: the front-
passenger seat is adjusted if it is in an unfav-
orable position.
Rvehicles with a multicontour seat: the air pres-
sure in the side bolsters of the seat backrest
is increased.
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:
XMove 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" (
Ypage 45).
PRE-SAFE®PLUS (anticipatory occu-
pant protection system PLUS)
Introduction
PRE-SAFE®PLUS is only available in vehicles
with the Driving Assistance package.
Using the radar sensor system, PRE-SAFE
®
PLUS is able to detect that a head-on or rear-end
collision is imminent. In certain hazardous sit-
uations, PRE-SAFE
®PLUS takes pre-emptive
measures to protect the vehicle occupants.
Important safety notes
The intervention of PRE-SAFE®PLUS cannot
prevent an imminent collision.
The driver is not warned about the intervention
of PRE-SAFE
®PLUS.
PRE-SAFE®PLUS does not intervene if the vehi-
cle is backing up.
When driving, or when parking or exiting a park-
ing space with assistance from Parking Pilot,
PRE-SAFE
®PLUS will not apply the brakes.
Function
PRE-SAFE®PLUS intervenes in certain situa-
tions if the radar sensor system detects an
imminent head-on or rear-end collision.
PRE-SAFE
®PLUS takes the following measures
depending on the hazardous situation detected:
Rif the radar sensor system detects that a
head-on collision is imminent, the seat belts
are pre-tensioned.
Rif the radar sensor system detects that a rear-
end collision is imminent:
-the brake pressure is increased if the driver
applies the brakes when the vehicle is sta- tionary.
-the seat belts are pre-tensioned.
The PRE-SAFE®PLUS braking application is can-
celed:
Rif the accelerator pedal is depressed when a
gear is engaged
Rif the risk of a collision passes or is no longer
detected
Rif Distance Pilot DISTRONIC indicates an
intention to pull away
If the hazardous situation passes without result-
ing in an accident, the original settings are
restored.
Automatic measures after an acci-
dent
Immediately after an accident, the following
measures are implemented, depending on the
type and severity of the impact:
Rthe hazard warning lamps are activated
Rthe emergency lighting is activated
Rthe vehicle doors are unlocked
Rthe front side windows are lowered
Rvehicles with a memory function: the electri-
cally adjustable steering wheel is raised
Rthe engine is switched off and the fuel supply
is cut off
Rvehicles with mbrace: automatic emergency
call
56Occupant safety
Safety

GWARNING
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
XKeep the brake pedal firmly depressed until
the emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated.
Active Brake Assist
General information
iObserve the "Important safety notes" sec-
tion (Ypage 62).
Active Brake Assist consists of a distance warn-
ing function with an autonomous braking func-
tion and Adaptive Brake Assist.
Active Brake Assist can help you to minimize the
risk of a collision with the vehicle traveling in
front or reduce the effects of such a collision.
If Active Brake Assist detects that there is a risk
of 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, Adap-
tive Brake Assist of the Active Brake Assist sys-
tem supports you.
Important safety notes
In particular, the detection of obstacles can be
impaired if:
Rthere is dirt on the sensors or anything else
covering the sensors
Rthere is snow or heavy rain
Rthere is interference by other radar sources
Rthere are strong radar reflections, for exam-
ple in parking garages
Ra narrow vehicle is traveling in front, e.g. a
motorbike
Ra vehicle is traveling in front on a different line
Rnew vehicles or after servicing is carried out
on the Active Brake Assist system
Observe the notes in the section on breaking-
in (
Ypage 131).
Following damage to the front end of the vehicle,
have the configuration and operation of the
radar sensor checked at a qualified specialist
workshop. This also applies to collisions at slow
speeds where there is no visible damage to the
front of the vehicle.
Activating/deactivating
Active Brake Assist is automatically active after switching on the ignition.
You can activate or deactivate Active Brake
Assist (
Ypage 231) in the on-board computer.
When deactivated, the distance warning func-
tion and the autonomous braking function are
also deactivated.
If Active Brake Assist is deactivated, the æ
symbol appears in the assistance graphic dis-
play.
If DSR (
Ypage 210) is activated, Active Brake
Assist is deactivated.
Distance warning function
General information
The distance warning function can help you to
minimize the risk of a front-end collision with a
vehicle ahead or reduce the effects of such a
collision. If the distance warning function
detects that there is a risk of a collision, you will
be warned visually and acoustically.
Important safety notes
iObserve the "Important safety notes" sec-
tion for driving safety systems (Ypage 62).
GWARNING
The distance warning function does not react:
Rto people or animals
Rto oncoming vehicles
Rto crossing traffic
Rwhen cornering
Thus, the distance warning function cannot
provide a warning in all critical situations.
There is a risk of an accident.
64Driving safety systems
Safety

Always pay careful attention to the traffic sit-uation and be ready to brake.
GWARNING
The distance warning function cannot always
clearly identify objects and complex traffic
situations.
In such cases, the distance warning function
may:
Rgive an unnecessary warning
Rnot give a warning
There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and do not rely solely on the distance
warning function.
Function
Starting at a speed of around 4 mph (7 km/h),
the distance warning function warns you if you
rapidly approach a vehicle in front. An intermit-
tent warning tone will then sound, and the ·
distance warning lamp will light up in the instru-
ment cluster.
XBrake immediately in order to increase the
distance from the vehicle in front.
or
XTake evasive action, provided it is safe to do
so.
Due to the nature of the system, particularly
complicated but non-critical driving conditions
may also cause the system to display a warning.
With the help of the radar sensor system, the
distance warning function can detect obstacles
that are in the path of your vehicle for an exten-
ded period of time.
Up to a speed of around 44 mph (70 km/h), the
distance warning function can also react to sta-
tionary obstacles, such as stopped or parked
vehicles.
Autonomous braking function
If the driver does not react to the distance warn- ing signal in a critical situation, Active Brake
Assist can assist the driver with the autonomous
braking function. Vehicles without Distance Pilot DISTRONIC:
the autonomous braking function is available in
the following speed ranges:
R4 - 65 mph (7 - 105 km/h) for moving objects
R4 - 31 mph (7 - 50 km/h) for stationary
objects
Vehicles with Distance Pilot DISTRONIC: the
autonomous braking function is available in the
following speed ranges:
R4 - 124 mph (7 - 200 km/h) for moving
objects
R4 - 31 mph (7 - 50 km/h) for stationary
objects
Due to the nature of the system, particularly
complicated but non-critical driving conditions
may also cause the Autonomous Braking Func-
tion to intervene.
If the autonomous braking function requires a
particularly high braking force, preventative
passenger protection measures (PRE-SAFE
®)
are activated simultaneously (Ypage 55).
Adaptive Brake Assist
General information
iObserve the "Important safety notes" sec-
tion (Ypage 62).
With the help of adaptive Brake Assist, the dis-
tance warning signal can detect obstacles that
are in the path of your vehicle for an extended
period of time.
If adaptive Brake Assist detects a risk of colli-
sion with the vehicle in front, it calculates the
braking force necessary to avoid a collision. If
you apply the brakes forcefully, adaptive Brake
Assist will automatically increase the braking
force to a level suitable for the traffic conditions.
Adaptive Brake Assist provides braking assis-
tance in hazardous situations at speeds above
4 mph (7 km/h). It uses radar sensor technology
to assess the traffic situation.
Up to a speed of approximately 155 mph
(250 km/h), Adaptive Brake Assist is capable of
reacting to moving objects that have already
been detected as such at least once over the
period of observation.
Up to a speed of approximately 44 mph
(70 km/h), Adaptive Brake Assist reacts to sta-
tionary obstacles.
If adaptive Brake Assist demands particularly
high braking force, preventative passenger pro-
Driving safety systems65
Safety
Z

tection measures (PRE-SAFE®) are activated
simultaneously (Ypage 55).
XKeep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will work normally again if:
Ryou release the brake pedal.
Rthere is no longer any danger of a collision.
Rno obstacle is detected in front of your vehi-
cle.
Adaptive Brake Assist is then deactivated.
Important safety notes
iObserve the "Important safety notes" sec-
tion for driving safety systems (Ypage 62).
GWARNING
Adaptive Brake Assist cannot always clearly
identify objects and complex traffic situa-
tions.
In such cases, Adaptive Brake Assist can:
Rintervene unnecessarily
Rnot 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.
GWARNING
Adaptive Brake Assist does not react:
Rto people or animals
Rto oncoming vehicles
Rto crossing traffic
Rwhen cornering
As a result, the Adaptive Brake Assist may not
intervene in all critical conditions. There is a
risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake.
Due to the nature of the system, particularly
complicated but non-critical driving conditions
may also cause Brake Assist to intervene.
If adaptive Brake Assist is not available due to a
malfunction in the radar sensor system, the
brake system remains available with full brake
boosting effect and BAS.
ESP®(Electronic Stability Program)
General notes
iObserve the "Important safety notes" sec-
tion (Ypage 62).
ESP
®monitors driving stability and traction, i.e.
power transmission between the tires and the
road surface.
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. The
engine output is also modified to keep the vehi-
cle 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.
ETS/4ETS (Electronic Traction System)
ETS traction control is part of ESP®. On vehicles
with 4MATIC, 4ETS is part of ESP®.
Traction control brakes the drive wheels indi-
vidually if they spin. This enables you to pull
away and accelerate on slippery surfaces, for
example if the road surface is slippery on one
side. In addition, more drive torque is transfer-
red to the wheel or wheels with traction.
Traction control remains active, even if you
deactivate ESP
®.
In appropriate driving situations, activate the
offroad program:
XVehicles without the Offroad Engineering
package (Ypage 211)
XVehicles with the Off-Road Engineering pack-
age (Ypage 212)
Offroad 4ETS (Electronic Traction Sys-
tem)
An ETS system specifically suited to off-road
terrain is activated automatically once an off-
road program is activated:
RVehicles without the Offroad Engineering
package (Ypage 211)
RVehicles with the Off-Road Engineering pack-
age (Ypage 212)
66Driving safet ysystem s
Safety

Important safety notes
GWARNING
If ES P
®is malfunctioning ,ES P®is unable to
stabiliz eth evehicle. Additionally, further driv -
ing safet ysystems are deactivated. This
increases th eris kof skiddin gand an accident.
Drive on carefully. Hav eES P
®checke dat a
qualified specialist workshop.
!Vehicles wit h4MATIC: only operate th e
vehicl efor amaximum of te nseconds on a
brak etest dynamometer. Switc hoff th eigni-
tion .
Application of th ebrakes by ES P
®may oth-
erwise destroy th ebrak esystem.
!Vehicles wit h4MATIC: function or perform-
anc etest smay only be carried out on a2-axl e
dynamometer. Before you operate th evehicl e
on suc h adynamometer, pleas econsult a
qualified workshop. You could otherwise
damag eth edriv etrain or th ebrak esystem.
ES P
®is only deactivated if th eå warning
lamp is lit continuously.
If th e÷ warning lamp and th eå warning
lamp are lit continuously, ES P
®is notavailable
due to amalfunction .
Observ eth einformation on warning lamp s
(
Ypage 273) and display message swhic hmay
be shown in th einstrumen tcluste r
(
Ypage 239).
iOnly use wheels wit hth erecommended tire
sizes. Only then will ES P®function properly.
Characteristics of ESP®
General inform ation
If the÷ ESPwarning lamp goes out before
beginning th ejourney, ES P®is automatically
active .
If ES P
®intervenes, th e÷ ESP®warning lamp
flashes in th einstrumen tcluster. If ES
P
®intervenes:
XDo no tdeactivat eES P®under any circum -
stances.
XOnly depress th eaccelerato rpedal as far as
necessar ywhen pullin gaway.
XAdapt your driving style to suit th eprevailing
road and weather conditions.
ECO start/stop function
The ECO start/sto pfunction switches th e
engin eoff automatically when th evehicl estops
moving .The engin estart sautomatically when
th edriver want sto pull away again .ES P
®
remain sin it spreviously selected status ,e.g. if
ES P®was deactivated before th eengin ewas
automatically switched off .
Deactivating/activating ESP®
Important safety notes
iObserveth e"Importan tsafet ynotes" sec -
tion (Ypage 62).
You can select between th efollowin gstate sof
ES P
®:
RESP®is activated.
RESP®is deactivated.
GWARNIN G
If you deactivat eES P
®,ES P®no longer sta-
bilizes th evehicle. Ther eis an increased ris k
of skiddin gand an accident.
Only deactivat eES P
®in th esituation sdescri-
bed in th efollowing.
It may be best to deactivat eES P
®in th efollow-
ing situations:
Rwhen usin gsnow chain s
Rin deep snow
Ron sandor gravel
Spinning th ewheels result sin acutting action
whic hprovide sbette rgrip.
iActivat eES P®as soo nas th esituation s
describe dabov eno longer apply. ES P®will
otherwise no tbe able to stabiliz eth evehicl eif
th evehicl estart sto skid or awhee lstart sto
spin .
Driving safety systems67
Safety
Z

iObserve the restrictions described in the
"Important safety notes" section
(
Ypage 70).
Important safety notes
GWARNING
Active Brake Assist with cross-traffic function will initially brake your vehicle by a partial
application of the brakes if a danger of colli-
sion is detected. There may be a collision
unless you brake yourself. Even after subse-
quent full application of the brakes a collision
cannot always be avoided, particularly when
approaching at too high a speed. There is a
risk of an accident.
Always apply the brakes yourself and try to
take evasive action, provided it is safe to do
so.
In the event of a partial application of the brakes,
the vehicle is braked with up to 50% of the full
braking pressure.
GWARNING
Active Brake Assist with cross-traffic function cannot always clearly identify objects and
complex traffic situations.
In such cases, Active Brake Assist with cross-
traffic function might:
Rissue an unnecessary warning or engage
Rneither give a warning nor intervene
There is a risk of an accident.
Always pay particular attention to the traffic
situation and be prepared to brake, especially
if Active Brake Assist with cross-traffic func-
tion alerts you. Terminate the intervention in a
non-critical driving situation.
GWARNING
Active Brake Assist with cross-traffic function cannot always clearly identify people, partic-
ularly if they are moving. Active Brake Assist
with cross-traffic function cannot intervene in
these cases. There is a risk of an accident.
Always pay particular attention to the traffic
situation and be prepared to brake, especially
if Active Brake Assist with cross-traffic func-
tion alerts you.
In order to maintain the appropriate distance to
the vehicle in front and thus prevent a collision,
you must apply the brakes yourself.
GWARNING
Active Brake Assist with cross-traffic function does not react:
Rto small people, e.g. children
Rto animals
Rto oncoming vehicles
Rwhen cornering
As a result, Active Brake Assist with cross-
traffic function may not warn you or engage in
all critical situations. There is a risk of an acci-
dent.
Always pay careful attention to the traffic sit- uation and be ready to brake.
In the event of snowfall or heavy rain, the rec-
ognition can be impaired.
Recognition by the radar sensor system is also
impaired if:
Rthere is dirt on the sensors or anything else
covering the sensors
Rthere is interference by other radar sources
Rthere are strong radar reflections, for exam-
ple in parking garages
Ra narrow vehicle is traveling in front, e.g. a
motorbike
Ra vehicle is traveling in front on a different line relative to the center of your vehicle
Rvehicles quickly move into the radar sensor
system detection range
Recognition by the camera system is also
impaired in the event of:
Rdirt on the camera or if the camera is covered
Rglare on the camera system, e.g. from the sun being low in the sky
70Driving safety systems
Safety