Adaptive Cruise Control (ACC)
Introduction
This chapter contains information on the following subjects:
Settings in Infotainment
214
Operation
215
Automatic stopping and starting
215
Operation overview
216
Start control
216
Stop/resume control
216
Set/change desired speed
217
Set the clearance level
217
Special driving conditions
217
Overtaking and towing
218
Malfunctions
218
The automatic distance control (hereinafter referred to as ACC) maintains the
set speed or the distance to the vehicle ahead without the accelerator or
brake pedal being pressed.
The front of the vehicle and the distance to the vehicle ahead is monitored by
a radar sensor » page 199.
The state in which the ACC maintains the speed or the proximity is described
as control from here on.
WARNING■
The general information relating to the use of assistance systems must
be observed » page 199, in section Introduction .■
The driver must always be ready to take over the operation of the accel-
erator and brake pedal.
■
The ACC does not react when approaching a stationary obstacle, such as
traffic jams, vehicle breakdowns or vehicles waiting at a traffic light.
■
The ACC does not respond to crossing or oncoming objects.
■
If the ACC does not decelerate fast enough, immediately apply the vehi-
cle's foot brake.
WARNINGFor safety reasons, do not use the ACC under the following conditions.■When driving in turning lanes, motorway exits or construction sites, to
avoid an unwanted acceleration to the stored speed.■
When visibility is poor, (e.g. fog, heavy rain, thick snowfall).
■
When road conditions are poor (e.g. ice, slippery road, gravel, dirt road).
■
Driving into “sharp” corners or in steep gradients / on steep inclines.
■
When driving through places where metal objects (such as metal build-
ings, railroad tracks, etc.) can be found.
■
When driving through very divided and enclosed spaces (such as large-ca-
pacity garages, car ferries, tunnels and the like.).
Note
■ The ACC is designed primarily for use on motorways.■The ACC reduces the speed by automatically releasing the accelerator or by
means of a braking procedure as appropriate. If the brakes are used for an au-
tomatic speed reduction at any moments, then the brake light illuminates.■
In case of failure of more than one brake light on the vehicle or on the con-
nected trailer, the ACC becomes unavailable.
■
The control automatically cancels the engagement of the brake supportive
assistance systems (e.g. ESC) or when the maximum permitted engine speed is
exceeded.
Settings in Infotainment
Read and observe
on page 214 first.
›
Press the button, then tap on the function surface
→
Driver assistance
.
■ ACC (adaptive cruise control) - Setting for the adaptive cruise control
■
Driving progr.:
- Set the vehicle acceleration when adaptive cruise control is
activated 1)
■
Last distance selected
- Switch on/off of the last distance selected
■
Distance:
- Set the distance monitoring to the vehicles ahead
1)
This can be set as follows on vehicles with a travel mode option » page 221.
214Driving
OperationFig. 255
Display in the instrument cluster: Examples of ACC displays
Fig. 256
Instrument cluster display: Examples of ACC status displays
Read and observe
on page 214 first.
The ACC allows a speed of 30 - 160 km/h to be set or a distance to the preced-
ing vehicle to be very short of very long to be set.
The ACC adjusts the set speed with respect to the detected vehicle ahead,
thus maintaining the selected proximity.
The ACC can detect a vehicle that is up to approx. 120 m ahead using the radar sensor.
ACC displays » Fig. 255
Vehicle detected (control active)
Line showing the displacement of the distance when setting » page 217,
Set the clearance level
12Set distance to the vehicle ahead
Vehicle detected (control deactivated)
ACC status displays » Fig. 256
Regulation is inactive (in the colour display the digits of speed limits is
shown in grey).
Regulation active - no vehicle detected (in the colour display the digits of
the speed limits are highlighted).
Control deactivated - no speed stored.
Regulation active - vehicle detected (in the colour display the digits of the
speed limits are highlighted).
Note to reduce speed
If the delay of the ACC is insufficient in relation to the vehicle in front, the
warning light lights up in the instrument cluster and the display shows a
message to engage the brake pedal.
Note
Some ACC notifications in the display of the instrument cluster may be hidden
by notifications for other functions. An ACC notification automatically appears
for a brief moment when there is a change in status of the ACC.
Automatic stopping and starting
Read and observe
on page 214 first.
Vehicles with an automatic transmission can decelerate to a standstill and
start moving again using the ACC.
Decelerate to a standstill
If a vehicle ahead decelerates to a standstill, the ACC will also decelerate your
vehicle to a standstill.
Starting to drive again after a holding period
As soon as the vehicle ahead starts moving again after a holding period, your
vehicle will also move and the speed will continue to be regulated. Control is
automatically disconnected in case of longer holding periods.
34215Assist systems
Operation overviewFig. 257
Operating lever
Read and observe
on page 214 first.
Overview of ACC functions operated with the lever » Fig. 2571Activate ACC (control deactivated)2Start control (resume) / increase speed by 1 km/h at a time
(sprung position)3Interrupt control (sprung position)4Deactivate ACC5 Increase speed by 10 km/h at a time6 Decrease speed by 10 km/h at a timeA Set proximity levelBStart control / reduce speed in increments of 1 km/h
If the lever is set from the position
directly into the sprung position
the current speed is stored and the control process is started.
Start control
Read and observe
on page 214 first.
Basic requirements for start of control ACC is enabled.
On vehicles with manual transmission , the second gear or a higher gear is
selected and the current speed is greater than 25 km/h.
On vehicles with automatic transmission the selector lever is in the posi-
tion D / S or in the Tiptronic position and the current speed is higher than
2 km / h.
Start control
›
Press
» Fig. 257 on page 216 .
›
orset the lever into the sprung position
» Fig. 257 on page 216 .
The ACC takes the current driving speed and performs the control, the warning
light illuminates in the instrument cluster.
If the control is started by moving the lever to the position and should
the speed be stored already, the ACC adopts this speed and carries out the
control.
Note
If control is started at a speed of less than 30 km/h on vehicles with an auto-
matic transmission, the speed of 30 km/h is stored. The speed increases auto-
matically to 30 km/h or is regulated with respect to the speed of the vehicle
ahead.
Stop/resume control
Read and observe
on page 214 first.
Stop control
›
Set the lever into the sprung position
» Fig. 257 on page 216 .
›
or: apply the brake.
Control stops, the speed remains stored.
Resume control
›
Start control » page 216, Start control .
216Driving
Fig. 259
Lane changes of other vehicles / stationary vehicles
Read and observe
on page 214 first.
The following (and similar) situations require special attention and possibly the
intervention of the driver (braking, accelerating etc.).
When cornering
When driving into or driving out of long corners, it could be that a vehicle is
travelling in the adjacent lane and is scanned by the radar » Fig. 258 -
. The
host vehicle is then controlled according to this vehicle.
Narrow vehicles or vehicles travelling side by side
A narrow or offset vehicle driving can only be recognized by the ACC if this is
located in the scanning range of the radar » Fig. 258 -
.
Other vehicles changing lanes
Vehicles that change onto the lane with a small distance » Fig. 259 -
may not
be detected by ACC in good time.
Stationary vehicles
The ACC does not detect stationary objects! When a vehicle detected by the
ACC turns or sheers off and there is a stationary vehicle in front of this vehi-
cle, » Fig. 259 -
the ACC does not respond to the stationary vehicle.
Vehicles with special load or special body parts
Other vehicles with a load or with body parts protruding from the sides, back
or top of the vehicle contour may not be detected by the ACC.
Overtaking and towing
Read and observe
on page 214 first.
When overtaking
When your vehicle is being controlled at a speed that is lower than the set
speed and the turn signal is operated, ACC assesses this situation as meaning
that the driver wishes to overtake. The ACC automatically accelerates the vehi-
cle, thereby reducing the proximity to a vehicle ahead.
If your vehicle changes to the overtaking lane and no vehicle is detected
ahead, ACC accelerates until the set speed is reached and then keeps it con-
stant.
Acceleration can be cancelled at any time by touch on the brake pedal or
pressing the button on the lever
» Fig. 257 on page 216 .
Towing a trailer
When towing, or if another accessory is connected to the trailer socket, ACC
control is set with a lower rate. The manner of driving should therefore be
adapted to this limitation.
Malfunctions
Read and observe
on page 214 first.
If, for some unknown reason, ACC is not available, the warning light appears
in the display of the instrument cluster and an appropriate message is shown.
Sensor covered / dirty
If the sensor is dirty or covered, a message indicating that there is no sensor
view appears. Clean the sensor cover or remove the obstacles » Fig. 240 on
page 199 .
ACC not available
If the ACC is currently unavailable, a message concerning the unavailability ap-
pears. Stop the vehicle, switch off the engine and then start it again. If ACC
continues to be unavailable, seek the assistance of a specialist garage.
ACC fault
With an ACC fault, an error message appears. Seek help from a specialist ga-
rage.
218Driving
Front Assist
Introduction
This chapter contains information on the following subjects:
Settings in Infotainment
219
Operation
219
Distance warning
219
Warning and automatic braking
220
Deactivation/activation
220
Malfunctions
221
The Front Assist (hereinafter referred to as system) warns you of the danger of
a collision with a vehicle or another obstacle in front of the vehicle, and tries to
avoid a collision or mitigate its consequences by automatically applying the
brakes where necessary.
The area in front of the vehicle is monitored by a radar sensor » page 199.
WARNING■
The general information relating to the use of assistance systems must
be observed » page 199, in section Introduction .■
The system does not respond to crossing or oncoming objects.
CAUTION
In case of failure of more than one brake light on the vehicle or on the electri-
cally connected trailer, the system becomes unavailable.
Settings in Infotainment
Read and observe
and on page 219 first.
›
Press the button, then tap on the function surface
→
Driver assistance
.
■ Front Assist (ambient traffic monitor. sys.) - Set the assistant for distance
monitoring to the vehicles ahead ■
Active
- Activate/deactivate the assistant
■
Advance warning
(Version 1) - Activate/deactivate advance warning
■
Advance warning
(Version 2) - Activating/deactivating and setting the distance
level at which a warning occurs
■
Display distance warning
- Activate/deactivate distance warnings
Operation
Read and observe
and on page 219 first.
The system support is provided in the following manner.▶ Alerts you about a dangerous proximity to the vehicle ahead.
▶ Warns you of an impending collision.
▶ Assists with a brake action triggered by the driver.
▶ If the driver fails to respond to a detected danger, automatic braking is per-
formed.
The system can work only if the following basic conditions are met. The system is activated.
TCS is activated » page 201.
The vehicle is travelling forwards at a speed of more than approx. 5 km/h.
Note
The system can be impaired or may not be available, for example when driving
in “sharp ”curves or with an ESC engagement » page 200.
Distance warning
Fig. 260
Display in the instrument cluster: Proximity warning
Read and observe and on page 219 first.
If a safe distance from the vehicle ahead is fallen short of, the warning light
appears in the display
» Fig. 260 .
Immediately increase the proximity if the current traffic situation allows you
to do so!
The proximity at which the warning is displayed depends on the current speed.
The warning may occur when driving between about 60 km/h and 210 km/h.
219Assist systems
Warning and automatic brakingFig. 261
Display in the instrument cluster: Warning or emer-
gency braking at low speed
Read and observe and on page 219 first.
Emergency braking at low speed
If there is a risk of a collision in a vehicle speed range of about 5 km/h to 30
km/h, the system triggers an automatic braking.
With automatic braking, the warning light appears in the display
» Fig. 261 .
Advance warning
If the system detects a risk of collision, the warning light appears on the dis-
play
» Fig. 261 and an audible signal is emitted.
The pre-warning display can occur in the following situations. ▶ If there is a risk of collision with a moving obstacle at a driving speed range
of approx. 30 km/h to approx. 210 km/h.
▶ If there is a risk of collision with a stationary obstacle at a driving speed
range of approx. 30 km/h to approx. 85 km/h.
When the advance warning is issued, the brake pedal must be pressed or the
moving obstacle avoided!
Acute alert
If the driver does not react to the advance warning when in danger of a colli-
sion with a moving obstacle, the system briefly applies the brake automatically
via an active brake intervention to draw attention to the potential danger of a
collision again.
Automatic Braking
If the driver does not respond to acute warning, the system begins to auto-
matically brake the vehicle.
If an automatic brake intervention is triggered by the system, the pressure in
the brake system increases and the brake pedal cannot be operated with the
normal pedal stroke.
The automatic braking interventions can be cancelled by pressing the acceler-
ator pedal or by means of a steering intervention.
Brake Support
If the driver does not brake sufficiently in the event of an impending collision,
the system automatically increases the braking force.
The brake support only occurs as long as the brake pedal is being firmly press-
ed down.
Deactivation/activation
Read and observe
and on page 219 first.
The function is automatically activated each time the ignition is switched on.
The system should only be disabled in exceptional cases »
.
The system can be activated or deactivated in one of two ways. ▶ In the instrument cluster display » page 47, Menu item
Assist systems
.
▶ In infotainment » page 219, Settings in Infotainment .
The following functions can be activated or deactivated separately in infotain-
ment. ▶ Distance warning
▶ Advance warning
If the distance-warning function was deactivated before switching off the igni-
tion, it remains deactivated after switching on the ignition.
WARNINGIn the following situations, Front Assist should be switched off for safety
reasons.■
When the vehicle is being towed away.
■
When the vehicle is on a rolling test bench.
■
If an unfounded warning was issued or a system action carried out.
■
When on a truck, car ferry or similar.
220Driving
MalfunctionsRead and observe
and on page 219 first.
If, for some unknown reason, the system is not available, an appropriate mes-
sage appears in the display of the instrument cluster.
Sensor covered / dirty
If the sensor is dirty or covered, a message indicating that there is no sensor
view appears. Clean the sensor cover or remove the obstacles » Fig. 240 on
page 199 .
System unavailable
If the system is currently unavailable, a message concerning the unavailability
appears. Stop the vehicle, switch off the engine and then start it again. If the
system still is not available, seek the assistance of a specialist garage.
Select the driving mode (Driving Mode Selection)
Introduction
This chapter contains information on the following subjects:
Adaptive Chassis Control (DCC)
221
Mode
Eco221
Mode
Comfort222
Mode
normal222
Mode
Sports222
mode
individual222
Mode
Offroad222
Mode selection and infotainment display
223
Individual mode
settings223
By selecting the driving mode, the driving behaviour can be adapted to the de-
sired mode of operation.
The following modes
Eco
.
Comfort
.
Normal
.
Sports
.
Individual
and
Offroad
are availa-
ble.
The
Comfort
is only on vehicles with adaptive chassis control (DCC) and the
mode
Offroad
available only on vehicles Octavia Scout.
WARNINGThe general information relating to the use of assistance systems must be
observed » page 199, in section Introduction .
Adaptive Chassis Control (DCC)
Read and observe
on page 221 first.
The adaptive chassis control (following known as DCC) provides the ability to
adjust the shock characteristics for the sporty, normal or comfortable driving
when the corresponding control mode is selected.
The DCC evaluates steering response and road conditions while driving contin-
uously and adjusts the suspension behaviour within the selected driving mode
accordingly.
Mode
Eco
Read and observe on page 221 first.
This mode is suitable for a relaxed style of driving and helps to save fuel.
Selecting this mode primarily affects the function of the following systems.
Drive
Vehicle acceleration is more relaxed than in
Normal
mode.
The recommended gear is controlled such to achieve the lowest possible fuel
consumption » page 42.
If the START-STOP system is deactivated manually » page 191, this will be auto-
matically activated.
The automatic gearbox is set automatically to mode E » page 195 .
Adaptive Cruise Control (ACC)
Acceleration occurs more relaxed than in
Normal
» page 214 mode with distance
control.
Xenon headlight
The system is in economic mode » page 66. The headlamps are in basic setting
and do not adapt to the direction of travel.
221Assist systems
WARNINGThe general information relating to the use of assistance systems must be
observed » page 199, in section Introduction .
Note
■
The system component service life is monitored electronically. Further infor-
mation » page 35 , Safety systems .■
If the front passenger front airbag is deactivated, the belt tensioning func-
tion for the front passenger seat is switched off.
Operation
Read and observe
on page 224 first.
In critical driving situations (e.g. during emergency braking or a sudden changein direction), the following steps can be taken separately or combined in order
to reduce the risk of serious injury.
▶ The front passenger's and driver's seatbelts, if worn, are automatically ten-
sioned closely over the body.
▶ Opened door windows in the front doors are closed automatically up to a gap
of about 5 cm from the edge.
▶ The sliding/tilting roof is closed.
Once the critical driving situation has passed, the tension on the seatbelts will
be released again.
The system operates at two levels of protection.
The first level of protection
The system already intervenes in situations that may occur during dynamic
driving. As a result, this primarily helps to keep the driver and the passenger in
the correct seated position.
The first protection level can be deactivated in one of the following ways. ▶ in the menu
Infotainment
→
→
Driver assistance
.
▶ Deactivation of TCS » page 201.
▶ By selecting the driving mode
Sport
» page 223 .
Provided that the driving mode
Sport
is not selected, the system is activated
over the two levels of protection after switching the ignition off and on again.
The second level of protection
The system intervenes only if the situation is evaluated as critical, such as
when panic braking at high speeds.
This level of protection cannot be deactivated.
Lane Departure Warning (Lane Assist)
Introduction
Fig. 264
Sensor for Lane Assist
This chapter contains information on the following subjects:
Settings in Infotainment
225
Operation
225
Activation / deactivation
226
Malfunctions
226
The lane departure warning (hereinafter known as system) helps to keep the
vehicle between the boundary lines of a lane.
The system recognises the boundary lines of the lane using a sensor
» Fig. 264 .
When the vehicle approaches a detected line between lanes, the system
makes a light movement of the steering wheel in the opposite direction to the
boundary line. This corrective steering intervention can be manually overrid-
den at any time.
WARNING■ The general information relating to the use of assistance systems must
be observed » page 199, in section Introduction .■
Lane Assist can help you keep the vehicle within the lane. However, it
does not steer the vehicle for you. The driver retains full responsibility for
steering at all times.
■
Some objects or markings on the road can be recognised as the boundary
lines - an erroneous steering intervention may be the result.
224Driving