Brake Assist (HBA)214Hill Start Assist (HHC)214
Multicollision brake (MCB)
215
Trailer stabilisation system (TSA)
215
The brake and stabilization systems are automatically activated each time the
ignition is switched on, unless otherwise indicated.
The error display is in Chapter » page 33, Warning lights .
WARNINGThe general information relating to the use of assistance systems must be
observed » page 212, in section Introduction .
Stability Control (ESC)
Read and observe
on page 213 first.
ESC improves vehicle stability in critical driving situations (e.g. if the vehicle
starts to skid) by the braking the individual wheels to maintain the direction.
During an ECS intervention, the warning light flashes in the instrument clus-
ter.
ESC Sport
Fig. 265
ESC Sport / ASR system button
Read and observe on page 213 first.
ESC Sport allows for a sportier driving style. With ESC Sport switched on, in the
event of light oversteer or understeer of the vehicle, no ESC interventions take
place and the ASR is so limited that the drive wheels can spin.
Activation›Press and hold down the » Fig. 265 button.›
or: On Infotainment, press the button
→Tap on the function surface
→
ESC system:
→
ESC Sport
.
With activation the warning light
lights up in the instrument cluster and an
appropriate message is displayed in the instrument cluster.
Deactivation
›
Press the
» Fig. 265 button.
›
or: On Infotainment, press the button
→Tap on the function surface
→
ESC system:
→
Activated
.
With deactivation the warning light
extinguishes
in the instrument cluster
and an appropriate message is displayed in the instrument cluster.
Anti-lock braking system (ABS)
Read and observe
on page 213 first.
ABS prevents the wheels locking when braking. Thus helping the driver to
maintain control of the vehicle.
The intervention of the ABS is noticeable from the pulsating movements of
the brake pedal which is accompanied by noises.
When the ABS system is active, do not brake periodically or reduce the pres-
sure on the brake pedal.
Engine drag torque control (MSR)
Read and observe
on page 213 first.
The MSR prevents the blocking tendency of the drive wheels when shiftingdown or with an abrupt deceleration (e.g. on icy or otherwise slippery road sur-
faces).
If the drive wheels lock, the engine speed is automatically increased. This re-
duces the braking effect of the engine, and the wheels can rotate freely again.
213Assist systems
WARNINGThe general information relating to the use of assistance systems must be
observed » page 212, in section Introduction .WARNING■
In the case of a collision or damage to the rear of the vehicle, the function
of the systems may be affected - risk of accident! Have the vehicle checked
by a specialist garage.■
Do not cover the sensor area - the function of the systems could be limi-
ted. ■ Remove snow, ice and such obstacles from the sensor environment im-
mediately.
WARNINGThe wizard for “blind spot”monitoring is limited by physical and system-re-
lated limits. Therefore, in the following situations the system can be de-
layed in drawing attention (or not at all) to a vehicle in the next land.■
When a vehicle is approaching at a very high speed.
■
When passing through a very sharp curve or a roundabout.
CAUTION
■ If a trailer or other accessory is to be connected to the trailer socket, then
the two systems are not available.■
In adverse weather conditions (heavy rain, water vapour, very low or high
temperatures, etc.), the system function may be limited - “failure to recognise
a vehicle”.
■
Accessories additionally installed on the vehicle rear, such as bicycle carriers,
can impair the system function.
Rear Traffic Alert- OperationFig. 272
Infotainment screen: Warning indicator / driving situation
Read and observe
and on page 219 first.
With the ignition switched on, the area next to and behind the vehicle is moni-
tored by the radar sensors of the system. If an approaching vehicle is detected
from the rear of the vehicle » Fig. 272, the system warns of this fact.
Warning - vehicles with parking aid
You will hear a continuous tone and one of the following warning levels
» Fig. 272 appears on the Infotainment screen.
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 is sounded and information for the driver to observe the
traffic behind is shown in the instrument cluster.
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. A corresponding message is shown in the information cluster display.
AB219Assist systems
NoteThe brightness of the indicator light is dependent on the setting of the ve-
hicle lighting. With the low or high beam on the brightness of the light will be
lower.
Activation / deactivation
Read and observe
and on page 219 first.
The activation or deactivation of the system can be carried out in one of the
following ways. ▶ In the instrument cluster display » page 48, Menu item
Assist systems
.
▶ In Infotainment in the menu
→
→
Driver assistance
(Applies to the wizard
for “Blind Spot” Monitoring).
▶ In Infotainment in the
menu
→
→
Parking and manoeuvring
(Applies to
Rear Traffic Alerts).
After switching off and switching on the ignition, depending on the setting pri-
or to switching off the ignition, the systems remains activated / deactivated.
Note
When activating the wizard for “blind spot” monitoring, the warning lights
illuminate briefly in the two exterior mirrors.
Malfunctions
Read and observe
and on page 219 first.
If the systems are not available for some unknown reason, an appropriate
message 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 or remove the obstructing object from the sensor environ-
ment » Fig. 271 on page 218 .
Systems unavailable
If the systems are currently unavailable, a message regarding the unavailability
appears. Stop the vehicle, switch off the engine and then start it again. If the
systems are still not available, seek the assistance of a specialist garage.
System fault
In the case of a system fault, an error message appears. Seek help from a spe-
cialist garage.
Reversing camera
Introduction
This chapter contains information on the following subjects:
Operation
222
Activation / deactivation
222
Function surfaces
223
Orientation lines and roadway
223
Mode - Lateral Parking
224
Mode - Parallel parking
224
mode- Driving up to a trailer / Distance monitoring
225
Mode - Monitoring the area behind the vehicle
225
The rear view camera (following as system) helps the driver when parking and
manoeuvring by displaying the area behind the vehicle in the Infotainment
screen (hereinafter only referred to as screen).
There are four modes available for different situations during the park and ma- noeuvring action. The mode change is carried out using the function surfaces
on the screen » page 223.
WARNING■
The general information relating to the use of assistance systems must
be observed » page 212, 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.
■
The camera may not be soiled or obscured, otherwise the system function
will be significantly affected - there is a risk of accident. For information on
cleaning » page 261 .
221Assist systems
CAUTION■The camera image is distorted by contrast with eyesight. For this reason, the
screen display is only of limited use for estimating distances to following vehi-
cles.■
Some items, such as thin columns, chain link fences or lattice, may not be
represented adequately in terms of screen resolution.
■
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.
Note
The camera is equipped with a cleaning system » page 77. The spraying is car-
ried out automatically when the rear window is sprayed.
Operation
Fig. 275
Installation location of the camera / scanned area behind the ve-
hicle
Read and observe
and on page 221 first.
The camera for capturing the area behind the vehicle is in the grip of the boot
lid » Fig. 275 .
Area behind the vehicle » Fig. 275
Detection range of the camera
Area outside the detection range of the camera
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.
ABThe luggage compartment lid is completely closed.
The vehicle is travelling at less than 15 km/h.
The area behind the vehicle is clearly visible.
The selected parking / manoeuvring area is clear and even.
Activation / deactivation
Fig. 276
Button for activation / deactiva-
tion
Read and observe and on page 221 first.
Activation
The system is activated by selecting reverse gear or pressing the symbol
button » Fig. 276 .
When activating, an alarm sounds and the symbol illuminates in the button.
The mode for traverse parking is displayed on the screen.
Deactivation
The system is deactivated by pressing the button, switching off the ignition
or when the speed exceeds 15 km/h (the symbol in the button then goes
out).
222Driving
Advance warning
If the system detects a risk of collision, the warning light appears on the dis-
play
» Fig. 300 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.
With a warning the brake pedal must be pressed or the moving obstacle is to
be 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 assist
If the driver brakes inadequate with an impending collision, the system auto-
matically increases braking force.
The braking assistance only occurs as long as the brake pedal is being firmly
pressed down.Deactivation/activationFig. 301
Buttons / dial: on the operating lever / the multifunction steer-
ing wheel
Read and observe
and on page 238 first.
The system is automatically activated each time the ignition is switched on.
The system should only be disabled in exceptional cases »
.
On vehicles with the MAXI DOT display, the system can be activated/deactiva- ted in the main menu » page 48, Menu item
Assist systems
.
Deactivation / activation in vehicles with segment display
Button
» Fig. 301ActionOperationBPressDeactivate/activate system
Deactivation / activation in vehicles with multi-function steering wheel
Button / dial
» Fig. 301ActionOperation
CPressShow Front Assist menu itemDPressDeactivate/activate system
Disable / enable and setting in the Infotainment
In Infotainment, the entire system or the function advance warning and dis-
tance warning can be deactivated/activated » page 238, Settings in Infotain-
ment .
The distance-warning function was deactivated before the ignition was
switched off, it remains deactivated after the ignition is switched on again.
239Assist systems
The first protection level can be deactivated in one of the following ways.
▶ in the menu in Infotainment
→ →
Driver assistance
.
▶ Deactivating the TCS » page 214.
▶ By selecting the driving mode
Sport
» page 241 .
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.
Vehicles with the Front Assist system
Using this information, a system intervention may also occur when there is the danger of a collision with an obstacle detected in front of the vehicle.
Lane Departure Warning (Lane Assist)
Introduction
Fig. 303
Sensor for Lane Assist
This chapter contains information on the following subjects:
Settings in Infotainment
243
Operation
244
Activation / deactivation
245
Malfunctions
245
The lane departure warning (following known as system) helps to keep the ve-
hicle between the boundary lines of a lane.
The system recognises the boundary lines of the lane using a sensor
» Fig. 303 .
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■ Please take note of the general points relating to the use of assistance
systems » page 212, 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.
WARNINGThe system may not be able to recognise the boundary line, or recognise it
incorrectly, for example, in the following situations.■
When visibility is poor, (e.g. fog, heavy rain, thick snowfall).
■
When driving in “sharp” bends.
■
The sensor is blinded by the sun or oncoming traffic.
■
The field of view of the sensor is limited by an obstacle or a preceding ve-
hicle.
CAUTION
Do not attach any stickers or similar objects in front of the sensor on the wind-
screen to avoid impairing the functions of the system.
Note
■ The system is designed for driving on motorways and roads with adequate
longitudinal markings.■
The system can detect both continuous and broken lines.
Settings in Infotainment
Read and observe
and on page 243 first.
›
Press the button, then tap on the function surface
→
Driver assistance
.
■ Lane Assist (lane departure warning sys.) - Settings for Lane Assist
■
Active
- Activate/deactivate the assistant
■
Adaptive lane guidance
- Activate/deactivate adaptive lane guidance
243Assist systems
Activation / deactivationRead and observe
and on page 243 first.
The activation/deactivation of the system can be carried out in one of two
ways. ▶ In the instrument cluster display » page 48, Menu item
Assist systems
.
▶ In Infotainment » page 243, Settings in Infotainment .
Adaptive tracking can also be enabled or disabled In Infotainment.
After switching off and switching on the ignition, the system setting is re-
tained.
Note
The system setting is stored (depending on the Infotainment type) in the ac-
tive user account personalisation » page 49.
Malfunctions
Read and observe
and on page 243 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 windscreen is dirty, iced or misted up in the sensor area, a message ap-
pears indicating that there is no sensor view. Clean the windscreen or remove
the obstacles from the sensor area.
System unavailable
If the system is currently unavailable, a message concerning the unavailability
appears. Try to re-activate the machine. If the system still is not available, seek
the assistance of a specialist garage.
System fault
In the case of a system fault, an error message appears. Seek help from a spe-
cialist garage.
Request to take over steering
If the system detects that there are no hands are on the steering wheel, this
will not work properly. You will be prompted to take over steering. Place your
hands on the steering wheel.
Traffic jam assistant
Introduction
This chapter contains information on the following subjects:
Function
245
Operating conditions
245WARNING■ Please take note of the general points relating to the use of assistance
systems » page 212, in section Introduction .■
The driver must always have hands on the steering wheel and be ready to
take over steering of the vehicle himself (accelerate or brake).
Note
The system is designed primarily for use on motorways.
Function
Read and observe
on page 245 first.
The traffic jam assistant (referred to as system) helps to keep the vehicle with-
in the lane at speeds below 65 km/h while keeping the distance to the vehicle
ahead.
The system is only available for vehicles with Automatic transmission.
The traffic jam assistant is an extension of the systems Lane Assist » page 243
and ACC » page 233 and works by using the functions of these two systems.
For this reason, the chapters on System Lane Assist and ACC are to be read
carefully and the safety notes are to be observed.
Operating conditions
Read and observe
on page 245 first.
The system activation occurs automatically whilst fulfilling the following ba-sic conditions.
Lane Assist with the adaptive tracking is enabled, the boundary lines on
both sides are recognized lane » page 243.
ACC is activated and the regulation » page 233 follows.
The vehicle speed is below 65 km/h.
245Assist systems
Data from the sensor is supplemented by information from the Infotainment
Navigation. This is the reason why traffic signs with maximum speeds can also
be shown on sections of roads which do not have any traffic signs.
Warning when exceeding the speed limit
The warning when exceeding the permissible speed (based on the detected
traffic sign) can be activated and set in Infotainment » page 247.
Mode when towing a trailer
For vehicles with a factory-fitted towing device, in the Infotainment it is possi- ble to enable or disable the relevant traffic signs for trailer operation and the
top speed for towing a trailer » page 247, Settings in Infotainment .
Additional display
Read and observe
on page 246 first.
If the menu item Road sign is currently not shown » Fig. 307 on page 247 -
,
the road sign with the speed limit will appear in the upper display area of the
instrument cluster » Fig. 307 on page 247 -
,
.
If several traffic signs are detected simultaneously, in some cases the next
traffic sign will also be displayed in the colour display - » Fig. 307 on page 247 -
.
All detected traffic signs can be displayed via the multifunction display in the
menu item Traffic Sign Recognition » Fig. 307 on page 247 -
.
This additional function can be activated/deactivated in Infotainment
» page 247 .
Note
The setting (activation/deactivation) of the auxiliary display will be saved (de-
pending on the Infotainment type) in the active user account personalisation
» page 49 .
Malfunction and information messages
Read and observe
on page 246 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 screen in the sensor area is dirty, iced or misted, a caution to clean the
screen appears. Clean the windscreen or remove the obstacles from the sen-
sor area.
System fault
In the case of a system fault, an error message appears. Seek help from a spe-
cialist garage.
System limitation (Navigation data not available)
If the Infotainment Navigation submits no data, a message regarding the limi- tation of the system function appears. Check whether the map documents are
up to date or whether the vehicle is currently in a location for which no naviga-
tion data are available.
Traffic signs unavailable
No speed restriction is detected, a message is displayed regarding the unavail-
ability of road signs.
Fatigue detection
The fatigue detection system (following known as system) recommends the
driver taking a break from driving when, because of the driver's steering be-
haviour, driver fatigue can be detected.
From the starting of the journey, the system evaluates the steering behaviour
at speeds 65-200 km/h. If, while driving, there have been changes in the steer-
ing behaviours that are evaluated by the system as indicating possible fatigue,
a break recommendation is issued.
Conditions under which a break from driving is detected by the system ▶ The vehicle is stopped and the ignition switched off.
▶ The vehicle is stopped, the seat belt removed and the driver's door opened.
▶ The vehicle is stopped for more than 15 minutes.
If none of these conditions are met or if the driving style is not changed, the
system recommends a driving break again after 15 minutes.
The system can be activated//deactivated in infotainment in the
→
→
Driver assistance
menu.
Pause recommendation
The icon appears and the following message for a few seconds in the display
of the instrument cluster and a message about the detected fatigue. An au-
dible signal is also emitted.
248Driving