With automatic braking the symbol appears » Fig. 208 in the display.
Advance warning
If the system detects a risk of collision, the symbol
» Fig. 208 appears in the
display and you will hear an acoustic signal.
At the same time, the braking system is prepared for possible emergency brak- ing.
The pre-warning display can occur in the following situations.
▶ If there is a risk of collision with a moving obstacle in a driving speed range of
about 30 km/h to about 210 km/h.
▶ There is a risk of a collision with a stationary moving obstacle in a vehicle
speed range of approximately 30 km/h to about 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, 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 fails to respond to the acute warning, the system starts to apply
the brakes automatically with increasing stopping power in several stages.
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.
Note
■ 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 accel-
erator pedal or by steering intervention.
Disable/enableFig. 209
Buttons/dial: on the control lever / multifunction steering wheel
Read and observe
and on page 169 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 in menu item
Assist systems
» page 45 .
Deactivation / activation in vehicles with segment display
Button
» Fig. 209ActionOperationAPress and hold at the top or press downShow Front Assist menu itemBPress brieflyConfirm entry (disable / enable)
Deactivation / activation in vehicles with multi-function steering wheel
Button /dial
» Fig. 209ActionOperation
CPress brieflyShow Front Assist menu itemDPress brieflyConfirm entry (disable / enable)
Disable / enable and setting in the Infotainment
In the Infotainment the entire system or the functions warning and distance warning can be disabled / enabled » Owner´s Manual Infotainment , chap-
ter CAR - Vehicle Settings .
170Driving
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
Normal
Read and observe on page 171 first.
This mode is suitable for a conventional driving.
Sport
mode
Read and observe
on page 171 first.
This mode is suitable for a sporty driving.
Selecting this mode primarily affects the function of the following systems.
DCC
The DCC adjusts the chassis for the sporty driving style.
Steering
The power steering is reduced slightly, i.e., the driver needs to exert more
force for steering .
Engine / drive
The vehicle acceleration is more dynamic than in
Normal
mode.
Adaptive Cruise Control (ACC)
The acceleration is quicker than in
Normal
mode with distance control
» page 163 .
Xenon headlight
The headlamps adapt to the driving style more dynamically than in mode
Nor-mal
» page 69 .
ProActive passenger protection
The first level of protection is deactivated » page 173.
Eco
mode
Read and observe
on page 171 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.
Engine / 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.
When the START-STOP system was deactivated manually » page 130, it is au-
tomatically activated.
The automatic gearbox is set automatically to mode E » page 135 .
Adaptive Cruise Control (ACC)
Acceleration occurs more relaxed than in Normal
» page 163 mode with distance
control.
Xenon headlight
The system is in economic mode » page 69. The headlamps are in basic setting
and do not adapt to the direction of travel.
Air conditioning (Climatronic)
The air conditioning is controlled so as to save energy. For this reason, for ex-
ample, it may take longer to reach the desired interior temperature in mode
Normal
.
Note
■ The mode Eco is not available when towing a trailer or when another acces-
sory is connected to the trailer socket. If the vehicle is in drive mode Eco
and a
trailer is hitched up or another accessory is connected, the vehicle is automati-
cally set to the driving mode
Normal
.
■
The maximum vehicle acceleration (kick down function) is possible also in
driving mode
Eco
.
Individual
mode
Read and observe
on page 171 first.
In the mode
Individual
each system can be set independently » page 173, Mode
settings
Individual
.
172Driving
Mode selection and Infotainment displayFig. 210
Button for selecting the driving mode / Display in Infotainment
display
Read and observe
on page 171 first.
Procedure for the selection of the driving mode
›
Press the symbol key
» Fig. 210 .
In the Infotainment display a running mode menu » Fig. 210 appears.
The mode is changed by repeatedly pressing the symbol key or by pressing
the corresponding function key in the Infotainment display.
If a driving mode other than
Normal
is selected, then the symbol illuminates
on the button.
Function buttons on the display » Fig. 210
Sets the mode
Individual
and information on the setting of the currently se-
lected mode.
Cancel the menu to select driving mode.
Modes (for the selected mode the button is shown in green).
Note
■ The currently selected running mode is displayed in the Infotainment in the
status bar of the main menu of the symbol .■
If the driving mode menu is not operated within a few seconds, the Infotain-
ment switches to the last selected menu or switches off.
ABCMode settingsIndividual
Read and observe on page 171 first.
In mode
Individual
the vehicle systems can be set as follows.
■
DCC:
- Set the shock characteristics
■
Comfort
- Comfortable
■
Normal
- Normal
■
Sport
- Sports
■
Steering:
- Set the power steering characteristics
■
Normal
- Normal
■
Sport
- Sports
■
Engine:
/
Drive:
- Sets the engine characteristic (vehicles with manual transmis-
sion) / drive characteristic (vehicles with automatic transmission)
■
Normal
- Normal
■
Sport
- Sports
■
Eco
- Economical
■
ACC:
- Set the vehicle acceleration when adaptive cruise control is activated
■
Normal
- Normal
■
Sport
- Sports
■
Eco
- Economical
■
Dynamic cornering light:
- Set the characteristics of the xenon headlights
■
Normal
- Normal
■
Sport
- Sports
■
Eco
- Economical
■
Air conditioning:
- Set the Climatronic characteristics
■
Normal
- Normal
■
Eco
- Economical
■
Reset mode
- Setting for all menu items in the
Individual
mode to
Normal
■
Cancel
- Keep the current settings
■
Reset
- Set all menu items to
Normal
Proactive passenger protection (Crew Protect Assist)
Introduction
This chapter contains information on the following subjects:
Function
174
173Assist systems
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
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