Fig. 178
Sampled areas and range of the
sensors
Read and observe and on page 147 first.
The system uses ultrasound waves to calculate the distance between the
bumper and an obstacle. The ultrasonic sensors are, depending on vehicle
equipment, located in the back or in the front bumper » Fig. 177.
Depending on the equipment, the following system variants are possible
» Fig. 178 .
▶ Variant 1: warns of obstacles in the areas
C
,
D
.
▶ Variant 2: warns of obstacles in the areas
A
,
B
,
C
,
D
.
▶ Variant 3: warns of obstacles in the regions
A
,
B
,
C
,
D
,
E
.
Approximate range of sensors (in cm)
Area » Fig. 178Variant 1
(4 sensors)Version 2
(8 sensors)Variant 3
(12 sensors)A-120120B-6090C160160160D606090E--90
Audible signals
The interval between the acoustic signals becomes shorter as the clearance is
reduced. A continuous tone sounds from a distance of approx. 30 cm - danger
area. From this moment on do not continue driving!
The acoustic signals can be set in the Infotainment » Owner´s Manual Infotain-
ment , chapter CAR - Vehicle Settings .
Towing a trailer
When towing, or when another accessory is connected to the trailer socket on-
ly the areas
A
and
B
» Fig. 178 are active in the system.
Note■
If with Version 3 vehicles not all fields around the vehicle are active after ac-
tivation the vehicle should be moved forwards or backwards.■
The signal tones for front obstacle recognition are factory-set to be higher
than for rear obstacle recognition.
Display in the Infotainment display
Fig. 179
Display
Read and observe and on page 147 first.
Function buttons and obstacle warning » Fig. 179ARoad display. Depending on the Infotainment type: Switching off park assistant dis-
play. Switching audible parking signals on/off.Change to rear-view camera display .Message: Look! Safe to move?Colour of an object detected in the collision area (the distance to the
obstacle is less than 30 cm).
Do not continue driving in the direc-
tion of the obstacle!Colour of an object detected in the manoeuvring area (the distance to
the obstacle is more than 30 cm).Colour of an object detected in the outside the manoeuvring area (the
distance to the obstacle is more than 30 cm).System failure (there is no indication of obstacles).
Road display
The roadway display varies depending on the steering angle
A
» Fig. 179 and
displays the roadway on which the vehicle would take with the current steer-
ing wheel position.
148Driving
The Rear Traffic Alert (hereinafter referred to as system) warns when leaving a
parking space from a transverse parking space about any approaching vehi-
cles.
If necessary, the system tries to avoid a collision with automatic braking, or at
least to mitigate the consequences.WARNINGThe general information relating to the use of assistance systems must be
observed » page 142, in section Introduction .
Operation
Fig. 182
Installation of radar sensors / Infotainment display: Warning
Fig. 183
Driving situation
Read and observe on page 150 first.
With the ignition switched on the area next to and behind the vehicle are mon-
itors by the radar sensors of the system.
If an approaching vehicle is detected from the rear of the vehicle » Fig. 183 the
system warns of this fact.
Warning - vehicles with parking aid
You will hear a continuous tone and the following appears » Fig. 182 in the In-
fotainment display.
The warning is indicated in the following two levels. An oncoming vehicle is detected. Do not continue driving backwards and
check around the vehicle.
A vehicle in the collision region is detected. Do not continue driving back-
wards
.
Warning - vehicles without parking sensors
An acoustic signal sounds and the following message appears in the instru-
ment cluster display.Caution: check rear traffic!
Automatic emergency braking
If the driver does not react to the warning and the system detects an impend-
ing collision, then this can trigger an automatic braking at a speed up to 10
km / h.
The following message is shown in the instrument cluster display.
Emergency braking complete. Please take over.
Radar sensors
The radar sensors (following known as sensors) are located under the rear
bumper » Fig. 182 and are not visible from the outside.
WARNING■
If there is an impact, or the rear of the vehicle is damage the sensor may
be damaged or misaligned. This can lead to impaired function of the sensor
- risk of accidents! Have the vehicle checked by a specialist garage.■
The area in front and around the sensor should not be obscured by any
objects. This could lead to impairment of the system function. ■Remove snow, ice and such obstacles from the area in front of and
around the sensor.
CAUTION
■ In adverse weather conditions (heavy rain, water vapour, very low or high
temperatures etc.), the system function may be limited - “incorrect recognition
of obstacle”.■
Accessories fitted to the vehicle rear, such as bicycle carriers, can impair the
system function.
AB150Driving
Activation / deactivationRead and observe
on page 150 first.
The activation or deactivation of the system can be carried out in one of twoways. ▶ In the instrument cluster display » page 48, Menu item
Assist systems
.
▶ Infotainment » Owner´s Manual Infotainment , chapter CAR - vehicle set-
tings .
After switching off and switching on the ignition system several times the sys-
tem remains either activated or deactivated depending on the last setting.
Information messages
Read and observe
on page 150 first.
The warning messages are available for both the Rear Traffic Alert and the as-
sist systems for “Blind spot monitoring” together and are displayed in the in-
strument cluster.
Rear Traffic Alert/ Blind Spot Monitor currently not avail.
The system is not available for an unknown reason.
Stop the vehicle, switch off the engine and then start it again.
If after engine start the message persists, then the help of a professional or- ganisation is required.
Error: Rear Traffic Alert/ Blind Spot Monitor
A system error is present. Seek help from a specialist garage.
R. Traf. Alert/Blind Spt Mntr not avail. No sensor view.
The sensors are dirty or covered.
Stop the vehicle, stop the engine, clean the area in front of and around the
sensors or remove the obstructing item.
If, after the engine restarts, the message persists, the help of a professional
organisation should be sought.
Trailer: Rear Traf. Alert/Blind Spot Mntr not avail.
If the vehicle has a towing device, a trailer or any other accessory connected
that was done at the factors then the system is not available.
Rear View Camera
Introduction
This chapter contains information on the following subjects:
Operation
152
Activation / deactivation
152
Function keys
153
Guidelines and roadway
153
Mode - traverse parking
154
Mode - parallel parking
154
Mode - driving up to a trailer / distance monitoring
155
Mode - monitor the area behind the vehicle
155
The rear view camera (following as system) helps the driver when parking and
manoeuvring by displaying the area behind the vehicle in the Infotainment dis-
play (following as display).
There are four modes available for different situations during the park and ma-
noeuvring action.
WARNING■ The general information relating to the use of assistance systems must
be observed » page 142, in section Introduction .■
The system detects obstacles. The display of the auxiliary boxes and lines
is independent of the actual vehicle environment. The driver must judge for
themselves whether the vehicle can park safely in the selected parking
space.
■
Make sure that the camera lens is not dirty or covered, otherwise the sys-
tem function can be significantly impaired. Information on cleaning
» page 197 , Camera lens
CAUTION
■
The camera lens distorts and enlarges the field of view of the difference in
eye sight. The display is therefore only of limited use for estimating distances
to following vehicles.■
Some items, such as thin columns, chain link fences or lattice may not be
represented adequately in terms of display resolution.
151Assist systems
■It is only a two-dimensional display. Therefore, protruding objects or roadway
depressions, for example, may not be recognised due to lack of space depth.■
In a crash or damage the vehicle's rear camera can possibly deviate from the
correct position. If this is the case, have the sensor checked by a specialist ga-
rage.
Operation
Fig. 184
Position of the camera / monitored area
Read and observe
and on page 151 first.
The camera for capturing the area behind the vehicle is in the grip of the boot
lid » Fig. 184 .
Monitored area » Fig. 184
Detection range of the camera
Area outside the detection range of the camera
The following modes are available for support during the park and manoeu- vring action.
▶ Traverse parking
▶ Parallel parking
▶ Driving up to a trailer / distance monitoring
▶ Monitoring the area behind the vehicle (wide view)
The mode change is done by means of the function keys on the display.
The system can assist the driver when parking and manoeuvring under the fol-
lowing basic conditions.
The ignition is switched on.
The system is activated.
The luggage compartment lid is completely closed.
ABThe vehicle is not travelling at more than about 15 km/h.
The area behind the vehicle is clearly visible.
The selected parking / manoeuvring area is clear and even.
Activation / deactivation
Fig. 185
Button for activation / deactiva-
tion
Read and observe and on page 151 first.
Activation
The system is activated by selecting reverse gear or pressing the symbol but-
ton
» Fig. 185 .
This is confirmed by a short acoustic signal ( the symbol in the button is lit).
The display mode for the traverse parking is displayed.
Deactivation
The system is deactivated by pressing the symbol button , switching off the
ignition or when the speed exceeds 15 km/h (the symbol in the button then
goes out).
152Driving
›Stop the vehicle and steer opposite until the yellow lines 6 the red line 8fade into each other (required roadway alignment). Hold the steering wheel
in this position.
Orientation lines are displayed » Fig. 187 on page 153 in the display.›
Carefully move backwards.
›
Stop the vehicle when
appears the display, or at a safe distance from the
obstacle situated behind the vehicle.
Note
The guidance in the parking space is cancelled due to the system when the
steering wheel is set for a period of time against the required road direction.
The parking is to be started again.
Mode - driving up to a trailer / distance monitoring
Fig. 190
Display
Read and observe and on page 151 first.
In this mode, the area behind the vehicle is shown at the top of the display.
Vehicles with towing hitch
If your vehicle is factory fitted with a tow-bar, this mode supports the driver
when the vehicle approaches a trailer draw bar.
Display » Fig. 190
Ball head of the towing device
Lines for the distance estimation (at a distance of about 10 cm)
Line for approaching a trailer draw bar
Trailer draw bar
The line
C
moves depending on the steering angle and indicate the roadway
on which the vehicle would take with the current steering wheel position.
ABCDVehicles without towing hitch
If your vehicle is not factory equipped with a towing device, a red line for moni-
toring the distance to obstacles is displayed at a distance of 40 cm behind the
vehicle.
Mode - monitor the area behind the vehicle
Read and observe
and on page 151 first.
In this mode, the area behind the vehicle is shown in the display.
The mode is suited for the entire view of the situation behind the vehicle.
Park Assist
Introduction
This chapter contains information on the following subjects:
Functioning
156
Parking space search
157
Switch to park mode
157
Reverse parking
157
Park forward
158
Departing from a parallel parking space
159
Automatic brake assist
159
Information messages
159
Park Assist (following referred to system) helps drivers park in suitable parallel
and perpendicular parking places or also to manoeuvre out of parallel parking
spaces.
The system takes over the steering movements when parking or leaving a
parking space. The driver operates the pedals and the shift lever or gear selec-
tor.
The state in which the steering wheel is operated by the system, is referred to
as parking operation.
The Park Assist is an extension of the parking aid » page 147 and operates on
the basis of data collected by the ultrasonic sensors.
For this reason, the chapter on the parking aid is to be read carefully and the safety notes are to be observed.
155Assist systems
Operation descriptionFig. 201
Operating elements of the speed
limiter
Read and observe on page 162 first.
Overview of the control elements of the speed limiter » Fig. 201ASpeed Limiter disable (set limit delete) Interrupt control (sprung position) Activate CCS (required condition for the subsequent activation of
the speed limiter) To activate the speed limiter the switch is to be adjusted to posi-
tion
, then press D
to operate.
BTake control again a)
/ Increase speed - short press (in increments
of 1 km/h), long press (in increments of 10 km/h)CStart regulation / reduce speed - short press (in increments of 1
km/h), long press (in increments of 10 km/h)DSwitch between CCS » page 160 and Speed Limitera)
If no speed limit is set, the current speed is set as the speed limit.
At the start of the regulation, the current speed is set as the speed limit and
displayed in the instrument cluster display. The warning light illuminates in
the instrument cluster.
Exceeding the speed limit during the regulation
If exceeding the speed limit is required during the regulation, for example
when overtaking, then the accelerator pedal is to be fully pressed.
When exceeding the speed limit, an acoustic signal sounds and the warning
light in the instrument cluster flashes.
The regulation is resumed once the speed has fallen below the set limit.
CAUTIONWhen driving downhill, exceeding the set speed limit may occur. When exceed-
ing the limit, an acoustic signal sounds and the warning light in the instru-
ment cluster flashes.
Note
By pressing the button D » Fig. 201 during the regulation this is cancelled and
the CCS is activated.
Adaptive Cruise Control (ACC)
Introduction
This chapter contains information on the following subjects:
Operation
164
Automatic stop-start
165
Operation Overview
165
Start control
166
Stop/resume control
166
Set/change the desired speed
166
Set the clearance level
167
Special driving conditions
167
Information messages
168
The Adaptive Cruise 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 143.
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 142, in section Introduction .■
The driver must always be ready to take over steering of the vehicle him-
self (accelerate or brake).
163Assist systems
WARNING (Continued)■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).
■
When driving around “sharp” bends.
■
When riding on a steep gradient / high slope.
■
When driving through places where metal objects (such as metal build-
ings, railway 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.
OperationFig. 202
Instrument cluster display: Examples of ACC displays
Fig. 203
Instrument cluster display: Examples of ACC status displays
Read and observe
on page 163 first.
The ACC allows you to set a speed of 30 - 160 or 210 km / h (depending on
equipment) and the distance to the vehicle ahead in the range of a very short
to a very long distance.
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. 150 m ahead using the radar
sensor.
ACC display » Fig. 202
Vehicle detected (control active).
Line showing the displacement of the distance when setting » page 167,
Set the clearance level .
12164Driving
Narrow vehicles or vehicles travelling side by side
Narrow vehicles or vehicles travelling side by side are not detected by the ra-
dar sensor until they are within the sensor's range » Fig. 205 -
.
If necessary, slow down the car by applying the brake.
Other vehicles changing lanes
Vehicles that change onto the lane with a small proximity » Fig. 206 -
do not
have to be detected by the radar sensor in time. The result may be a delayed
ACC response.
If necessary, slow down the car by applying the brake.
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 vehicle,
» Fig. 206 -
the ACC does not respond to the stationary vehicle.
In such cases, take over the steering and stop the vehicle by applying the foot
brake.
When overtaking
When your vehicle is being controlled (the speed is lower than that which is
stored) and the indicator is activated, the ACC interprets this situation as
meaning that the driver intends to overtake. The ACC automatically acceler-
ates the vehicle, thereby reducing the proximity to a vehicle ahead.
If the vehicle changes to the fast lane and no vehicle is detected ahead, the
ACC accelerates until the set speed is reached and then keeps it constant.
Acceleration can be cancelled at any time by touch on the brake pedal or
pressing the button on the lever
» Fig. 204 on page 165 .
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.
Control should therefore be disabled whenever you are driving behind or over-
taking such a vehicle.
Towing a trailer
When towing, or in when another accessory is connected to the trailer socket
the ACC control is set with a lower rate. The manner of driving should there-
fore be adapted to this limitation.Information messages
Read and observe
on page 163 first.
The warning symbols are shown in the instrument cluster display.
ACC: no sensor view!
The sensor cover or the sensor is covered or dirty.
Stop the car, switch off the engine and clean the sensor cover or remove the
obstacle » Fig. 174 on page 143 .
If this message appears in winter, the cause can be snow covering the sensor.
The ACC is functional again after the snow melts away from the sensor.
If the message appears again after starting the engine, the position of the lev- er should be
» Fig. 204 on page 165 adjusted.
ACC not available.
The ACC is not available for an unknown reason.
Stop the vehicle, switch off the engine and then start it again. If the ACC is still
not available, push the lever into position . Seek help from a specialist ga-
rage.
Error: ACC
There is an ACC system error.
Push the lever into position / press. Seek help from a specialist garage.
Speed limit
Increase the speed accordingly and start control
» page 166.
Front Assist
Introduction
This chapter contains information on the following subjects:
Operation
169
Distance warning (dangerous distance)
169
Warning and automatic braking
169
Disable/enable
170
Information messages
171
168Driving