lane keep assist MERCEDES-BENZ S-Class CABRIOLET 2017 A217 Owner's Manual

1, 2, 3 ...
4ETS (Electronic Traction System)see ETS/4ETS (Electronic Trac-
tion System)
4MATIC (permanent four-wheel
drive) .................................................. 161
12 V socket
see Sockets
360° camera
Cleaning ........................................ .284
Function/notes .............................1 72
A
ABS (Anti-lock Braking System)
Display message ............................ 205
Function/notes ................................ 61
Warning lamp ................................. 235
Accident
Automatic measures after an acci-
dent ................................................. 57
Activating media mode
General notes ................................ 252
Activating/deactivating cooling
with air dehumidification ................. 116
Activating/deactivating Night
View Assist Plus
With spotlight function ................... 180
Active Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 200
Display message ............................ 222
Function/information .................... 181
Active Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 200
Display message ............................ 221
Function/information .................... 184
Active multicontour seat .................... 98
Active Parking Assist
Detecting parking spaces .............. 165
Display message ............................ 222
Exiting a parking space .................. 167
Function/notes ............................. 164
Important safety notes .................. 164
Parking .......................................... 166
ADAPTIVE BRAKE ................................. 68 Adaptive Brake Assist
Function/notes ................................ 65
Adaptive Damping System (ADS) ..... 160
Adaptive Highbeam Assist Plus
Display message ............................ 216
Function/notes ............................. 109
Switching on/off ........................... 110
Additional speedometer ................... 202
Additives (engine oil) ........................ 332
Address book
see also Digital Operator's Man-
ual .................................................. 243
Adjusting the volume
Multimedia system ........................ 244
Air bags
Deployment ..................................... 54
Display message ............................ 214
Front air bag (driver, front
passenger) ....................................... 47
Head bag ......................................... 49
Important safety notes .................... 46
Introduction ..................................... 46
Knee bag .......................................... 48
Occu

pant Classification System
(OCS) ............................................... 49
PASSENGER AIR BAG indicator
lamps ............................................... 42
Side impact air bag .......................... 48
Air vents
Glove box ....................................... 122
Important safety notes .................. 121
Rear ............................................... 122
Setting ........................................... 121
Setting the center air vents ........... 122
Setting the side air vents ............... 122
Switching AIRSCARF on/off .......... 100
Air-conditioning system
see Climate control
AIRCAP
Cleaning instructions ..................... 282
Extending/retracting ....................... 91
Important safety notes .................... 91
AIRMATIC
Display message ............................ 220
Function/notes ............................. 159
AIRSCARF
Switching on/off ........................... 100
4Index

with Steering Assist and Stop&Go
Pilot ...............................................156
Doors
Automatic locking (switch) ...............7 9
Central locking/unlocking
(SmartKey) ...................................... .72
Control panel .................................. .39
Display message ............................ 229
Emergency locking ........................... 79
Emergency unlocking ....................... 79
Important safety notes .................... 78
Opening (from inside) ...................... 78
Power closing .................................. 79
Drinking and driving ......................... 144
Drive program
Automatic ...................................... 135
Manual ........................................... 135
Manual (Mercedes-AMG vehi-
cles) ............................................... 136
SETUP (on-board computer) .......... 203
Driver's door
see Doors
Driving abroad
Mercedes-Benz Service ................. 279
Driving Assistance package ............. 181
Driving on flooded roads .................. 148
Driving safety systems
ABS (Anti-lock Braking System) ....... 61
ADAPTIVE BRAKE ............................. 68
Adaptive Brake Assist ...................... 65
BAS (Brake Assist System) .............. 62
BAS PLUS with Cross-Traffic
Assist ............................................... 62
COLLISION PREVENTION ASSIST
PLUS ................................................ 64
Distance warning function ............... 64
EBD (electronic brake force distri-
bution) ............................................. 68
ESP
®(Electronic Stability Pro-
gram) ............................................... 66
Important safety information ........... 61
Overview .......................................... 61
PRE-SAFE
®Brake ............................. 68
STEER CONTROL ............................. 70
Driving systems
360°camera .................................. 172
Active Blind Spot Assist ................. 181 Active Lane Keeping Assist ............ 184
Active
Parking Assist ..................... 164
AIR

MATIC ...................................... 159
ATTENTION ASSIST ........................ 176
Cruise control ................................ 149
Display message ............................ 220
DISTRONIC PLUS ........................... 150
DISTRONIC PLUS with Steering
Assist and Stop&Go Pilot ............... 156
Driving Assistance package ........... 181
HOLD function ............................... 158
Night View Assist Plus ................... 178
PARKTRONIC ................................. 161
Rear view camera .......................... 168
Traffic Sign Assist .......................... 177
Driving tips
AMG ceramic brakes ..................... 147
Automatic transmission ................. 134
Brakes ........................................... 146
Break-in period .............................. 123
DISTRONIC PLUS ........................... 156
Downhill gradient ........................... 146
Drinking and driving ....................... 144
Driving in winter ............................. 148
Driving on flooded roads ................ 148
Driving on wet roads ...................... 148
Exhaust check ............................... 145
Fuel ................................................ 144
General .......................................... 144
Hydroplaning ................................. 148
Icy road surfaces ........................... 148
Important safety notes .................. 123
Limited braking efficiency on sal-
ted roads ....................................... 146
Snow chains .................................. 304
Subjecting brakes to a load ........... 146
The first 1000 miles (1500 km) ..... 123
Wet road surface ........................... 146
DVD video
Operating (on-board computer) ..... 196
see also Digital Operator's Man-
ual .................................................. 243
E
EASY-ENTRY featureFunction/notes ............................. 102
EASY-ENTRY system ............................ 97
Index9

Lane Keeping Assistsee Active Lane Keeping Assist
LATCH-type (ISOFIX) child seat
anchors ................................................ 59
License plate lamp (display mes-
sage) .................................................. .216
Light sensor (display message) ....... 216
Lights
Adaptive Highbeam Assist PLUS .... 109
Automatic headlamp mode ............ 107
Cornering light function ................. 109
Fogged up headlamps .................... 110
General notes ................................ 107
Hazard warning lamps ................... 109
High beam flasher .......................... 108
High-beam headlamps ................... 108
Light switch ................................... 107
Low-beam headlamps .................... 108
Parking lamps ................................ 108
Rear fog lamp ................................ 108
Setting exterior lighting ................. 107
Standing lamps .............................. 108
Switching the daytime running
lamps on/off (on-board com-
puter) ............................................. 202
Switching the spotlight on/off ....... 202
Turn signals ................................... 108
see Interior lighting
Loading guidelines ............................ 254
Locking
see Central locking
Locking (doors)
Automatic ........................................ 79
Emergency locking ........................... 79
From inside (central locking but-
ton) ..................................................7 8
Locking centrally
see Central locking
Low-beam headlamps
Display message ............................ 216
Switching on/off .......................... .108
Luggage cover
see Trunk partition
Lumbar support
Adjusting the 4-way lumbar sup-
port ............................ ......................9
8M
M+S tires............................................ 304
Malfunction message
see Display messages
Matte finish (cleaning instruc-
tions) .................................................. 281
mbrace
Call priority ....................................2 64
Display message ............................ 210
Downloading destinations
(COMAND) ..................................... 264
Downloading routes ....................... 267
Emergency call .............................. 262
General notes ................................ 261
Geo fencing ................................... 267
Info call button .............................. 263
Locating a stolen vehicle ...............2 66
Remote fault diagnosis .................. 266
Remote vehicle locking .................. 266
Roadside Assistance button .......... 263
Search & Send ............................... 265
Self-test ......................................... 261
Speed alert ....................................2 67
System .......................................... 261
Triggering the vehicle alarm ........... 267
Vehicle remote unlocking .............. 265
Mechanical key
Function/notes ................................ 74
General notes .................................. 74
Inserting .......................................... 74
Locking vehicle ................................ 79
Removing ......................................... 74
Unlocking the driver's door .............. 79
Media Interface
USB port in the armrest of the
center console ............................... 256
see Digital Operator's Manual
Memory card (audio) ......................... 195
Memory function
Seats, steering wheel, exterior
mirrors ...........................................1 05
Mercedes-Benz Intelligent Drive
360°camera .................................. 172
ABS (Anti-lock Brake System) .......... 61
Active Blind Spot Assist ................. 181
Active Lane Keeping Assist ............ 184
Active Parking Assist ..................... 164
Index13

Cockpit
FunctionPage
:Steering wheel paddle shift-
ers135
;Combination switch108
=Horn
?Instrument cluster34
ADIRECT SELECT lever131
BOverhead control panel38
CControl panel for:
ÜLowering the rear seat
head restraints97
Moves the seat-belt extender
forwards44
PASSENGER AIRBAG indica-
tor lamps42
Adjusting the brightness of
the instrument lighting and
the multimedia system dis-
play
DClimate control systems114
EIgnition lock124
Start/Stop button124
FunctionPage
FAdjusts the steering wheel101
Steering wheel heating101
GCruise control lever149
HElectric parking brake142
IDiagnostics connection29
JOpens the hood272
KLight switch107
LControl panel for:
Activating Steering Assist
and Stop&Go Pilot156
Switching on Active Lane
Keeping Assist184
Deactivating PARKTRONIC161
Switching on the 360° cam-
era172
Activating Night View Assist178
Switching on the head-up
display189
Cockpit33
At a glance

Crosswind Assist
General information
Strong crosswind gusts can impair the ability of
your vehicle to drive straight ahead. The cross-
wind driving assistance function integrated in
ESP
®noticeably reduces these impairments.
ESP®intervenes automatically according to the
direction and intensity of the crosswinds affect- ing your vehicle.
ESP
®intervenes with stabilizing braking to
assist you in keeping the vehicle in the lane.
Crosswind Assist is active at vehicle speeds
above 50 mph (80 km/h)when driving straight
ahead or cornering gently.
Important safety notes
Crosswind Assist does not work if ESP®is
switched off or deactivated because of a mal-
function.
EBD (electronic brake force distribu-
tion)
General information
EBD monitors and controls the brake pressure
on the rear wheels to improve driving stability
while braking.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 61).
GWARNING
If EBD is malfunctioning, the rear wheels can
lock, e.g. under full braking. This increases the
risk of skidding and an accident.
You should therefore adapt your driving style
to the different handling characteristics. Have
the brake system checked at a qualified spe-
cialist workshop.
Observe information regarding indicator and
warning lamps (
Ypage 235) as well as display
messages (Ypage 207).
ADAPTIVE BRAKE
ADAPTIVE BRAKE enhances braking safety and
offers increased braking comfort. In addition to the braking function, ADAPTIVE BRAKE also has
the HOLD function (
Ypage 158) and hill start
assist (Ypage 127).
PRE-SAFE®Brake
General information
PRE-SAFE®Brake can help you to minimize the
risk of a collision with a vehicle ahead or a
pedestrian, and reduce the effects of such a
collision. If PRE-SAFE
®Brake has detected a risk
of collision, you will be warned visually and
acoustically as well as by automatic braking.
iPay attention to the important safety notes
in the "Driving safety systems" section
(
Ypage 61).
PRE ‑SAFE
®Brake is only available in vehicles
with the Driving Assistance Plus package.
For PRE-SAFE
®Brake to assist you when driving,
the radar sensor system and the camera system
must be switched on and be operational.
With the help of the radar sensor system and the
camera system, PRE-SAFE
®Brake can detect
obstacles that are in front of your vehicle for an
extended period of time.
In addition, pedestrians in the path of your vehi-
cle can be detected.
PRE-SAFE
®Brake detects pedestrians using
typical characteristics such as the body con-
tours and posture of a person standing upright.
iObserve the restrictions described in the
"Important safety notes" section
(
Ypage 68).
Important safety notes
GWARNING
PRE-SAFE
®Brake will initially brake your vehi-
cle by a partial application of the brakes if a
danger of collision is detected. There may be
a collision unless you brake yourself. Even
after subsequent full application of the brakes
a collision cannot always be avoided, partic-
68Driving safety systems
Safety

DISTRONIC PLUS is not deactivated if you
depress the accelerator pedal.
DISTRONIC PLUS is automatically deactivated
if:
Ryou engage the electric parking brake or if thevehicle is automatically secured with the elec-
tric parking brake
RESP®intervenes or you deactivate ESP®
Rthe transmission is in the P,R or Nposition
Ryou pull the cruise control lever towards you
in order to pull away and the front-passenger
door or one of the rear doors is open
Rthe vehicle is skidding
Ryou activate Active Parking Assist
If DISTRONIC PLUS is deactivated, you will hear a tone. The DISTRONIC
PLUSOffmessage will
be displayed in the multifunction display for
approximately five seconds.
Tips for driving with DISTRONIC PLUS
General notes
Pay particular attention in the following traffic
situations:
RCornering, entering and exiting a bend: the
ability of DISTRONIC PLUS to detect vehicles
when cornering is limited. Your vehicle may
brake unexpectedly or late.
RDriving on a different line: DISTRONIC PLUS
may not detect vehicles which are not driving
in the middle of their lane. The distance to the
vehicle in front will be too short.
ROther vehicles changing lane: DISTRONIC
PLUS has not detected the vehicle cutting in
yet. The distance to this vehicle will be too
short.
RNarrow vehicles: DISTRONIC PLUS does not
detect the vehicle in front on the edge of the
road because of its narrow width. The dis-
tance to the vehicle in front will be too short.
RObstacles and stationary vehicles:
DISTRONIC PLUS does not brake for obsta-
cles or stationary vehicles. If, for example, the detected vehicle turns a corner and reveals an
obstacle or stationary vehicle, DISTRONIC
PLUS will not brake for these.
RCrossing vehicles: DISTRONIC PLUS may mis-
takenly detect vehicles that are crossing your
lane. Activating DISTRONIC PLUS at traffic
lights with crossing traffic, for example, could cause your vehicle
to p
ull away unintention-
ally.
In such situations, brake if necessary.
DISTRONIC PLUS is then deactivated.
DISTRONIC PLUS with Steering Assist
and Stop&Go Pilot
General notes
DISTRONIC PLUS with Steering Assist and
Stop&Go Pilot helps you keep the vehicle in the
center of the lane by means of moderate steer-
ing interventions in a speed range from
0–125 mph (0–200 km/h).
It monitors the area in front of your vehicle by
means of multifunction camera :, at the top of
the windshield.
In a speed range from 0 - 37 mph (0 - 60 km/h),
Stop&Go Pilot focuses on the vehicle in front,
taking into account lane markings, e.g. when
you are following vehicles in a traffic jam.
At speeds of more than 37 mph (60 km/h),
Steering Assist focuses on clear lane markings
(left and right), only focusing on the vehicle in
front if clear lane markings are not present.
Steering Assist and Stop&Go Pilot do not pro-
vide any support if these conditions do not exist.
DISTRONIC PLUS must be active in order for the
function to be available.
Important safety notes
If you fail to adapt your driving style, DISTRONIC
PLUS with Steering Assist and Stop&Go Pilot
can neither reduce the risk of an accident nor
override the laws of physics. It cannot take
account of road, weather and traffic conditions.
DISTRONIC PLUS with Steering Assist and
Stop&Go Pilot is only an aid. Yo u a
re responsible
for the distance to the vehicle in front, for vehi-
156Driving system s
Driving an d parking

cle speed, for braking in good time and for stay-
ing in your lane.
DISTRONIC PLUS with Steering Assist and
Stop&Go Pilot does not detect road and traffic
conditions and does not detect all road users. If
you are following a vehicle which is driving
towards the edge of the road, your vehicle could
come into contact with the curb or other road
boundaries. Be particularly aware of other road
users, e.g. cyclists, that are directly next to your
vehicle.
Obstacles such as building site huts on the lane
or projecting out into the lane are not detected.
An inappropriate steering intervention, e.g. afterintentionally driving over a lane marking, can be
corrected at any time if you steer slightly in theopposite direction.
DISTRONIC PLUS with Steering Assist and
Stop&Go Pilot cannot continuously keep your
vehicle in lane. In some cases, steering inter-
vention is not sufficient to bring the vehicle back
to the lane. In such cases, you must steer the
vehicle yourself to ensure that it does not leave
the lane.
The support provided by the system can be
impaired if:
Rthere is poor visibility, e.g. due to insufficient
illumination of the road, or due to snow, rain,
fog or spray
Rthere is glare, e.g. from oncoming traffic, the
sun or reflection from other vehicles (e.g. if
the road surface is wet)
Rthe windshield is dirty, fogged up, damaged or
cove
red, for instance by a sticker, in the vicin-
ity of the camera
Rthere are no, several or unclear lane markings
for a lane, e.g. in areas with road construction
work
Rthe lane markings are worn away, dark or cov-
ered up, e.g. by dirt or snow
Rthe distance to the vehicle in front is too small
and the lane markings thus cannot be detec-
ted
Rthe lane markings change quickly, e.g. lanes
branch off, cross one another or merge
Rthe road is narrow and winding
Rthere are strong shadows cast on the road The system is switched to passive and no longer
assists you by performing steering interventions
if:
Ryou actively change lane
Ryou switch on the turn signal
Rtake your hands off the steering wheel or do
not steer for a prolonged period of time
Steering Assist and Stop&Go Pilot are activated
again automatically after a lane change is com-
pleted.
Steering Assist and Stop&Go Pilot do not pro-
vide any support:
Ron very sharp corners
Rwhen a loss of tire pressure or a defective tire
has been detected and displayed
Pay attention also to the important safety notes
for DISTRONIC PLUS (
Ypage 151).
The steering interventions are carried out with a
limited steering moment. The system requires
the driver to keep his hands on the steering
wheel and to steer himself.
If you do not steer yourself or if you take your
ha nds off the ste

ering wheel for a prolonged
period of time, the system will first alert you with
a visual warning. A steering wheel symbol
appears in the multifunction display. If you have
still not started to steer and have not taken hold
of the steering wheel after five seconds at the
latest, a warning tone also sounds to remind you
to take control of the vehicle. Steering Assist
and Stop&Go Pilot are switched to passive.
DISTRONIC PLUS remains active.
Activating Steering Assist and Stop&Go
Pilot
XPress button ;.
Indicator lamp :lights up. The DTR+:
Steering Assist. Onmessage appears in
Driving systems157
Driving and parking
Z

Display in theassistanc egraphicXTo display th eassistanc egraphic:s elect
th eAssistanc e
Graphicmenuusin gth eon -
boar dcomputer (Ypage 198).
Pedestrian symbol :in th eassistanc e
graphic indicate sth estatu sof th espotligh t
function .If th esymbol is displayed no tfilled
in ,th efunction is switched on .If th esymbol is
displayed filled in ,th econdition sfo rth espot-
ligh tfunction are met .
Problemswit hNight View Assis tPlu s
ProblemPossible causes/consequences and MSolutions
The picturequalit yof
Night Vie wAssis tPlus
has deteriorated.The windshield is fogge dup on th einside .
XFold down camera cover (Ypage 285).
XDefrost thewindshield (Ypage 118).
The windshield is ice dup.
XDe-ice th ewindshield (Ypage 118).
The windshield wiper sare smearin gth ewindshield .
XReplaceth ewiper blade s (Ypage 112).
The windshield is smeared after th evehicl ehas been cleane din acar
wash .
XClean th ewindshield (Ypage 283).
There is windshield chip damage in th ecamera's field of vision .
XReplaceth ewindshield .
The pedestrian and ani -
mal recognition is no t
available.th einfrare dcamera in th eradiato rtrim is dirty
XUse asof tcloth and water to clean th einfrare dcamera .
Driving Assistance PLUS package
General notes
The Driving Assistance PLU Spackag econsist s
of DISTRONIC PLU S (Ypage 150), Active Blind
Spot Assis t (Ypage 181) and Active Lan eKeep-
in g Assis t (Ypage 184).
Active Blind Spot Assis t
General notes
Active Blind Spot Assistuses arada rsensor
system, pointe dtoward th erea rof th evehicle,
to monitor th eare ato th eside sof th evehicl e
whic hth edriver is unable to see . Awarnin gdis-
play in th eexterio rmirror sdraw syour attention
to vehicles detecte din th emonitore darea. If
you then switch on th ecorrespondin gtur nsig -
nal to chang elane, you will also receiv ean opti-
cal and audibl ewarning. If aris kof latera lcolli-
Driving systems18 1
Driving an d parking
Z

The course-correcting brake application is avail-
able in the speed range between 20 mph
(30 km/h) and 120 mph (200 km/h).
Either no braking application, or a course-cor-
recting brake application adapted to the drivingsituation occurs if:
Rthere are vehicles or obstacles, e.g. crash
barriers, located on both sides of your vehicle.
Ra vehicle approaches you too closely at the
side.
Ryou have adopted a sporty driving style with
high cornering speeds.
Ryou clearly brake or accelerate.
Ra driving safety system intervenes, e.g. ESP®
or PRE-SAFE®Brake.
RESP®is switched off.
Ra loss of tire pressure or a defective tire is
detected.
Switching on Active Blind Spot Assist
XMake sure that Active Blind Spot Assist is
activated in the on-board computer
(
Ypage 200)
XSwitch on the ignition.
Warning lamps in the exterior mirrors light up
red for approximately 1.5 seconds. Gray radarwaves propagating backwards appear next to
the vehicle in the assistance display on the
multifunction display.
Active Lane Keeping Assist
General notes
Active Lane Keeping Assist monitors the area in
front of your vehicle by means of multifunction
camera :at the top of the windshield. Various
different areas to the front, rear and side of your
vehicle are also monitored with the aid of the
radar sensor system. Active Lane Keeping Assist detects lane markings on the road and
can warn you before you leave your lane unin-
tentionally. If you do not react to the warning, a
lane-correcting application of the brakes can
bring the vehicle back into the original lane.
This function is available in a speed range
between 40 mph and 120 mph (60 km/h and
200 km/h)
.
Important safety notes
Ifyou fail to adapt your driving style, Active Lane
Keeping Assist can neither reduce the risk of an accident nor override the lawsof physics. Active
Lane Keeping Assist cannot take account of
road and weather conditions. Itmay not recog-
nize traff icsituations. Active Lane Keeping
Assist isonly an aid. You are responsible for the
dist ance to the vehicle in front, for vehicle
speed, for braking ingood time and for staying in
your lane.
Active Lane Keeping Assist cannot continuously
keep your vehicle in its lane.
GWARNING
Active Lane Keeping Assist cannot always
clearly detect lane markings.
In such cases, Active Lane Keeping Assist
can:
Rgive an unnecessary warning and then
make a course-correcting brake application
to the vehicle
Rnot give a warning or intervene
There is a risk of an accident.
Always pay particular attention to the traffic
situation and keep within the lane, especially
if Active Lane Keeping Assist alerts you. Ter-
minate the intervention ina non-critical driv-
ing situation.
The system may be impaired or may not function
if:
Rthere ispoor visibility, e.g. due to insufficient
illumination of the road, or due to snow, rain,
fog or spray
Rthere isglare, e.g. from oncoming traffic, the
sun or reflection from other vehicles (e.g. if
the road surface is wet)
Rthe windshield is dirty, fogged up, damaged or
covered, for instance by a sticker, in the vicin-
ity of the camera
184Driving systems
Driving and parking

Rthe radar sensors in the front or rear bumpers
or the radiator trim are dirty, e.g. obscured by
snow
Rthere are no, several or unclear lane markings
for a lane, e.g. in areas with road construction
work
Rthe lane markings are worn away, dark or cov-
ered up, e.g. by dirt or snow
Rthe distance to the vehicle in front is too small
and the lane markings thus cannot be detec-
ted
Rthe lane markings change quickly, e.g. lanes
branch off, cross one another or merge
Rthe road is narrow and winding
Rthere are strong shadows cast on the road
If no vehicle is detected in the adjacent lane and
broken lane markings are detected, no lane-cor-
recting brake application is made.
Warning vibration in the steering wheel
A warning may be given if a front wheel passes
over a lane marking. It will warn you by means of
intermittent vibration in the steering wheel for
up to 1.5 second s.
In orde r that you are warned only when neces-
sary and in good time if you cross the lane mark-
ing, the system recognizes certain conditions
and warns you accordingly.
The warning vibration occurs earlier if:
Ryou approach the outer lane marking on a
bend.
Rthe road has very wide lanes, e.g. a highway.
Rthe system recognizes solid lane markings.
The warning vibration occurs later if:
Rthe road has narrow lanes.
Ryou cut the corner on a bend.
Lane-correcting brake application
If you leave your lane, under certain circumstan-
ces the vehicle will brake briefly on one side.
This is meant to assist you in bringing the vehicle
back to the original lane.
GWARNING
A lane-correcting brake application cannot
always bring the vehicle back into the original lane. There is a risk of an accident.
Always steer, brake or accelerate yourself,
especially if Active Lane Keeping Assist warns
you or makes a lane-correcting brake appli-
cation.
GWARNING
Active Lane Keeping Assist does not detect
traffic conditions or road users. In very rare
cases, the system may make an inappropriate brake application, e.g. after intentionally driv-
ing over a solid lane marking. There is a risk of
an accident.
An inappropriate brake application may be
interrupted at any time if you steer slightly in
the opposite direction. Always make sure that
there is sufficient distance on the side for
other traffic or obstacles.
If a lane-correcting brake application occurs,
display :appears in the multifunction display.
The brake application also slightly reduces vehi-
cle speed.
A lane-correcting brake application can be made
after driving over a lane marking recognize as
being solid or broken. Before this, a warning
must be given by means of intermittent vibration
in the steering wheel. In addition, a lane with
lane markings on both sides must be detected.
In the case of a broken lane marking being
detected, a lane-correcting brake application
can only be made if a vehicle has been detected
in the adjacent lane. The following vehicles can
have an influence on brake application: oncom-
ing traffic, vehicles that are overtaking and vehi-
cles that are driving parallel to your vehicle.
A further lane-correcting brake application can
only occur after your vehicle has returned to the original lane.
Driving systems185
Driving and parking
Z