f the distance-warning function was deactivated before the ignition was
switched off, it remains deactivated after the ignition is switched on again.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 or a system action was taken.
■
When on a truck, or a car ferry service or similar.
Information messages
Read and observe
and on page 169 first.
The warning symbols are shown in the instrument cluster display.
Front Assist: no sensor view.FRONT ASSIST 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 system is functional again after the snow melts away from the sensor.
Front Assist not available.FRONT ASSIST NOT AVAILABLE
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.
Selection of the driving mode(Driving Mode Selection)
Introduction
This chapter contains information on the following subjects:
Adaptive Chassis Control (DCC)
171
Mode
Comfort171Normal172Sport
mode172Eco
mode
172Individual
mode
172
Mode selection and Infotainment display
173
Mode settings
Individual173
By selecting the driving mode, the driving behaviour can be adapted to the de-
sired mode of operation.
The following modes are available
Comfort
,
Normal
,
Sport
,
Eco
and
Individual
.
The mode
Comfort
is only available on vehicles with adaptive chassis control
(DCC).
WARNINGPlease take note of the general points relating to the use of assistance
systems » page 142, in section Introduction .
Note
The set driving mode remains stored even after switching the ignition on and
off.
Adaptive Chassis Control (DCC)
Read and observe
on page 171 first.
The adaptive chassis control (following known as DCC) provides the ability toadjust 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
Comfort
Read and observe on page 171 first.
This mode is suitable for driving on roads with poorer surface or for long mo- torway journeys.
171Assist systems
ProActive passenger protection (following known as system) increases pas-
senger protection in the front seats in situations that could lead to vehicle im-
pact or overturning.WARNINGPlease take note of the general points relating to the use of assistance
systems » page 142, in section Introduction .
Note
The system component service life is monitored electronically. Further infor-
mation » page 35 , Safety systems .
Function
Read and observe
on page 174 first.
In critical driving situations (e.g. during emergency braking or a sudden change
in 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.
▶ The windows in the side doors (if open) are automatically closed 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.
▶ The system deactivation in the Infotainment » Owner´s Manual Infotain-
ment , chapter CAR - vehicle settings .
▶ Deactivation of TCS » page 143, Braking and stabilisation systems .
▶ Selecting the driving mode
Sport
» page 171 .
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 in
panic braking at high speeds.
This level of protection cannot be deactivated.
Vehicles with the Front Assist system
On vehicles with Front Assist the system has been expanded to include infor-
mation from the radar sensor » page 143. Using this information a system in-
tervention may also occur when there is the danger of a collision with an ob-
stacle detected in front of the vehicle.
A system intervention can only take place on the basis of the information col-
lected by the radar sensor, if the radar sensor is fully functional.
Note
If the front passenger front airbag is deactivated » page 19 the belt tensioning
function for the front passenger seat is switched off.
Lane Departure Warning (Lane Assist)
Introduction
Fig. 211
Camera viewing window for Lane
Assist
This chapter contains information on the following subjects:
Operation
175
Activation / deactivation
176
Information messages
176
The lane departure warning (following known as system) helps to keep the ve-
hicle between the boundary lines of a lane.
The system detects the boundary lines of a lane using the camera » Fig. 211.
174Driving
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 142, 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 on the road may be incorrectly detected as lines. As a re-
sult, an incorrect steering intervention may take place.
WARNINGThe detection capability of the camera may be limited by various external
influences. In such cases, the assistant may not detect the line between
two lanes at all or not properly. The detection capability of the camera may
be restricted in the following situations, for example.■
When visibility is poor, (e.g. fog, heavy rain, thick snowfall).
■
When driving around “sharp” bends.
■
The camera is blinded by the sun.
■
The camera is blinded by the oncoming traffic.
■
The viewing range of the camera is impeded by a vehicle travelling ahead.
■
The camera viewing range is obstructed by an obstacle.
CAUTION
Do not attach any stickers or similar objects to the windscreen to avoid impair-
ing the functions of the systems.
Note
■ The system is designed for driving on motorways and roads with adequate
longitudinal markings.■
The system can detect both continuous and broken lines.
OperationFig. 212
Monochromatic display of the instrument cluster: Examples of
system indications
Fig. 213
Colour display of the instrument cluster: Examples of system in-
dications
Read and observe
and on page 175 first.
System Indicators » Fig. 212 and » Fig. 213
The system is active, but not ready to intervene.
The system is active and ready to intervene.
The system intervenes when approaching the right-hand boundary lane.
Adaptive lane assist ensues (boundary lines on both sides of the vehicle
detected).
175Assist systems
The system can intervene when the following basic conditions are present.The system is activated.
The vehicle is travelling at more than about 65 km/h 1)
.
The boundary lines are clearly visible (appropriate longitudinal markings).
The boundary line of at least one side of the lane is detected.
The driver's hands are on the steering wheel.
The lane is more than 2.5 m in width.
If the turn signal is switched on prior to driving over the boundary line (e.g.
when making a turn), no steering intervention takes place when the vehicle
approaches the boundary line. The system regards the situation as an inten-
ded lane change.
Warning lights in the instrument clusterWarning lightMeaningThe system is active, but not ready to intervene.The system is active and ready to intervene or is currently
intervening.
Adaptive lane assist
Adaptive lane assist helps to keep the vehicle in the position between the
boundary lines selected by the driver, by means of steering intervention.
If the system detects only one boundary line, it will help to maintain the selec-
ted proximity from said boundary line.
If the proximity to the detected boundary line is changed, the system quickly
adapts and maintains the newly-selected position.
WARNINGThe system function may be restricted if, for example there is danger due
to ruts on a downhill road or in a crosswind.Activation / deactivation
Read and observe
and on page 175 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 .
Adaptive tracking can also be enabled or disabled In Infotainment.
After switching off and switching on the ignition, the system setting is re-
tained.
Information messages
Read and observe
and on page 175 first.
The warning symbols are shown in the instrument cluster display.
Lane Assist not available. No sensor view.
The windscreen is dirty, iced over or misted up in the camera viewing range.
Clean the windscreen or remove the obstacles.
Lane Assist currently not available.
The system has limited functionality due to a temporary error. Try to re-acti-
vate the machine.
Error: Lane Assist
System error detected. Seek help from a specialist garage.
Lane Assist: take over steering!
The system has detected that there are no hands on the steering wheel. In
this case the Assist system is not ready to intervene. Place your hands on the
steering wheel.
1)
Not valid for vehicles with the traffic jam assistant » page 179.
176Driving
Assistant for “blind spot monitoring”
Introduction
This chapter contains information on the following subjects:
Operation
177
Driving conditions and warnings
178
Activation / deactivation
178
Information messages
179
The assistant for“blind spot monitoring” (following known as system) draws
attention to vehicles travelling in the same direction in the next lane in the so
called blind spots.
The “blind spot” is an area that is not easily visible in a rear-view mirror or even
directly from the vehicle.
WARNING■ Please take note of the general points relating to the use of assistance
systems » page 142, in section Introduction .WARNINGThe system has physical and system-related limitations. Therefore, in the
following situations the system can be delayed in drawing attention (or not
at all) to a vehicle in the next land. The responsibility for the lane change
rests with the driver.■
When a vehicle is approaching at a very high speed.
■
When passing through a very sharp curve or a roundabout.
Operation
Fig. 214
Installation of radar sensors
Read and observe on page 177 first.
Using radar sensors and when the speed is above 15 km / h the system moni- tors the area next to and behind the vehicle. At the same time, the distance
and the difference in speed between your vehicle and the other vehicles in the
monitored area can be measured.
If a vehicle is detected in the “blind spot” area, the system indicates this vehi-
cle by the indicator light in the exterior mirror.
Radar sensors
The radar sensors (following known as sensors) are located under the rear
bumper » Fig. 214 and are not visible from the outside.
When driving the sensors monitor an area to the left and right to the extent of
a normal lane width.
System constraint
The system is unable to recognize the specific lane width by means of sensors. Therefore, a warning example may be issued in the following cases.
▶ When driving on a road with narrow lanes or on the lane edge, the system
can respond to a vehicle that is not drive directly in the adjacent lane.
▶ When making a turn, the system can respond to a vehicle in a more remote
lane.
▶ The system may also respond to objects on the roadside such as crash barri-
ers, noise barriers or similar objects.
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 - “failure to recognise
a vehicle”.■
Accessories fitted to the rear of the vehicle, such as bicycle carriers, can im-
pair the system function.
177Assist systems
Driving conditions and warningsFig. 215
Driving situation / indicator light in the left outside mirror indi-
cates the driving situation
Fig. 216
Driving situation / indicator light in the right outside mirror indi-
cates the driving situation
Read and observe
on page 177 first.
In the following situations, the indicator light in the outside mirror indicates avehicle in the “blind spot”.
▶ Your vehicle » Fig. 215
B
is being overtaken by the vehicle
A
.
▶ Your vehicle » Fig. 216
C
is overtaking the vehicle
D
with a speed that is at
least 10 km / h more. If the speed during the overtaking is even higher, then there is no warning by the warning light.
The warning display is always in the exterior mirror on the side of the vehicle
where a vehicle is detected in the “blind spot”.
The time at which the warning light indicates a vehicle in the “blind spot” » Fig. 215 is dependent on the speed difference between the two vehicles. The
larger the speed difference, the earlier the warning is given by means of the
indicator light.
Two warning levels
The warning light is
illuminated .
▶ A vehicle was detected in the “blind spot”.
The warning light is
flashing .
▶ A vehicle was detected in the “blind spot” and the flashing light is on.
An advanced warning for vehicles with Lane Assist
The warning light flashes
even if the steering wheel is “turned” in direction
of the vehicle in the blind spot. Therefore the Lane Assist » page 174 must be
enabled and the boundary line between the vehicles detected.
If in this case your vehicle indicates crossing the boundary line, with a short vi-
bration of the steering wheel.
Note
The 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
on page 177 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.
Note
When the system is activated the warning lamps in the two exterior mirrors
light up briefly.178Driving
Information messagesRead and observe
on page 177 first.
The warning messages are available for both the assistant “blind spot moni-toring” and the Rear Traffic Alert and are displayed together in the instrument
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
System error detected. 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 engine has restarted the message persists, then the help of a profes-
sional organisation is required.
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.
Traffic jam assistant
Introduction
This chapter contains information on the following subjects:
Operation
179
Operating conditions
179
The traffic jam assistant helps at speeds below 60 km / h to keep the vehicle within the lane while keeping the distance to the vehicle ahead.
The system is only available for vehicles with Automatic transmission.
WARNING■
Please take note of the general points relating to the use of assistance
systems » page 142, 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.
Operation
Read and observe
on page 179 first.
The traffic jam assistant is an extension of the systems Lane Assist » page 174
and ACC » page 163 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 179 first.
The system can work when the following basic conditions are present. Lane Assist with the adaptive tracking is enabled, the boundary lines on
both sides are recognized lane » page 174.
ACC is activated and the regulation » page 163 follows.
The vehicle is travelling less than about 60 km/h.
The system activation is automatic provided that the above conditions are met and a preceding vehicle is detected. The warning light
illuminates in the in-
strument cluster.
Assistant for emergencies
Introduction
This chapter contains information on the following subjects:
Operation
180
Operating conditions
180
179Assist systems
The assistant for emergencies (following known as system) detects inactivity
of the driver, which for example can be caused by a sudden loss of conscious-
ness. The system then performs measures as safely as possible to decelerate
the vehicle to a stop.
The system is only available for vehicles with Automatic transmission.WARNING■
Please take note of the general points relating to the use of assistance
systems » page 142, in section Introduction .■
The system is intended for emergency situations when the driver is sud-
denly unable to take over the steering task. Therefore, never try to test out
the system - there is a risk of an accident!
Operation
Read and observe
on page 180 first.
The assistant for emergencies is an extension of the systems Lane Assist
» page 174 and ACC » page 163 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.
System intervention
If the system detects the driver's inactivity, it draws attention to this fact by a
beep and a message on the display of the instrument cluster. It keeps the ve-
hicle in its lane.
If the driver does not take over the steering even after repeated warning, the
system begins to automatically brake the vehicle. This is followed by continu-
ous braking. After the vehicle has come to a stop, automatic activation of the
parking brake takes place.
With automatic braking, the hazard warning lights are activated to warn other
road users.
Note
The automatic braking interventions can be cancelled by pressing the acceler-
ator pedal or by steering intervention.Operating conditions
Read and observe
on page 180 first.
The system can intervene when the following basic conditions are present. Lane Assist is activated and the boundary line is detected at least on one
side of the lane » page 174.
ACC is activated and the regulation » page 163 follows.
Traffic sign recognition
Introduction
This chapter contains information on the following subjects:
Function
181
Additional display
181
Information messages
182
The traffic sign recognition (following known as system) shows certain traffic
signs (e.g. speed limits) on the display of the instrument cluster and if necessa-
ry warns against excessive speeds.
WARNING■ Please take note of the general points relating to the use of assistance
systems » page 142, in section Introduction .■
Vertical traffic signs must always take precedence over the traffic signs
shown in the display. The driver is always responsible for correctly assess-
ing the traffic situation.
■
Traffic signs may not be recognised at all by the system, or may be recog-
nised incorrectly. As a result, the traffic signs may not be displayed at all, or
the wrong one may appear.
■
The speed limits shown in the road signs displayed refer to the country-
specific speed measurement units. For example, the display
may refer to
km/h or mph, i.e. specific to that country.
Note
The system is only available in some countries.180Driving