
Function keysFig. 186
Function keys
Read and observe and on page 151 first.
The mode changes and other adjustments are made using the function keys
on the display.
Function buttons » Fig. 186
Turns off the display of the area behind the vehicle
Mode - traverse parking
Mode - parallel parking
Mode - driving up to a trailer / distance monitoring
Mode - monitor the area behind the vehicle (wide view)
Display settings - brightness, contrast, colour
Parking aid (mini display)
Enabling/disabling the audible signals
Enabling/disabling the mini display
Switch to full screen display
Guidelines and roadway
Fig. 187
Orientation and lane lines
ABCDEFGRead and observe and on page 151 first.
In the mode for transverse and parallel parking guidance for the assessment of
distance and lane lines are displayed.
Display » Fig. 187
The distance is about 40 cm (safety distance limit)
The distance is approximately 100 cm
The distance is approximately 200 cm
Lane lines
The distance between the side lines corresponds approximately to the vehicle width including mirrors.
Lane
The lane lines
D
» Fig. 187 change depending on the steering angle and indi-
cate the roadway on which the vehicle would take with the current steering
wheel position. The lane lines terminate approximately 300 cm behind the ve-
hicle.
CAUTION
The objects shown in the display can be closer or even further away than they
appear. This is especially the case in the following situations.■
Protruding objects, such as the rear of a truck and the like.
■
When driving from a horizontal surface into a slope or a depression.
■
When driving from a slope or a depression onto a horizontal surface.
Note
The distance between the orientations behind the vehicle may vary slightly
depending on the load condition of the vehicle rear and on the road inclination.ABCD153Assist systems

›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

As soon as the parking procedure is completed, an audible signal sounds and
the following message appears in the display: Park Assist stopped. Take over steer-ing!
Parking space found by the driver
The system activation is also possible if the vehicle has already been partially
moved to a suitable parking space.
›
Press the symbol key
» Fig. 191 on page 156 . The display shows the follow-
ing » Fig. 195 .
The further procedure is analogous to that for reverse parking.
›
Follow the system instructions shown in the display.
As soon as the parking procedure is completed, an audible signal sounds and
the following message appears in the display:
Park Assist stopped. Take over steer-ing!
Departing from a parallel parking space
Read and observe
and on page 156 first.
The system supports the driver when leaving a parking space of a parallel
parking space.
Leaving a parking space process
›
Press the symbol key
» Fig. 191 on page 156 .
The following message is displayed:
Park Assist: indicate and engage reverse›
Activate the turn signal for side of the vehicle where the parking space is out
of which you wish to manoeuvre.
›
Select reverse gear or move the selector lever into position R.
The further procedure is analogous to that for reverse parking.
›
Follow the system instructions shown in the display.
As soon as the parking procedure is completed, an audible signal sounds and
the following message appears in the information display:
Please take over steer-ing and drive on.Automatic brake assist
Read and observe
and on page 156 first.
Automatic brake assist when speeding
If a velocity of 7 km / h is exceeded during the parking manoeuvre for the first
time, the speed will be automatically reduced by the system to less than 7 km /
h. This prevents the parking manoeuvre from aborting.
Automatic emergency braking
If the system detects a risk of collision during parking, automatic emergency
braking takes place to prevent a collision.
The parking is terminated by the emergency braking.
CAUTION
The automatic emergency braking is not triggered by the system when the
parking process stops due to the speed of 7 km / hr being exceeded!
Information messages
Read and observe
and on page 156 first.
The warning symbols are shown in the instrument cluster display.
Park Assist stopped. Speed too high.
If a speed of 50 km / h is exceeded while searching for a parking space, the
system with the key symbol is must be reactivated.
Speed too high. Take over steering!
The parking is terminated if the speed exceeds 7 km / hr.
Park Assist stopped. Driver steering intervention
The parking procedure is terminated due to a driver steering intervention.
Park Assist finished. ASR deactivated.
The parking procedure cannot be carried out because the TCS system is deac-
tivated » page 143 , Braking and stabilisation systems . Activate the TCS.
ASR deactivated. Take over steering!
The parking procedure was ended because TCS was deactivated during the
parking procedure.
Trailer: Park Assist stopped.
159Assist systems

The parking process cannot be performed with a trailer or when another ac-
cessory is connected to the trailer socket.Time limit exceeded. Take over steering!
The parking procedure was ended because the time limit of 6 minutes was
passed.
Park Assist currently not available.
The system cannot be activated because a fault exists on the vehicle. Seek
help from a specialist garage.
Park Assist stopped. Not available.
The parking procedure was ended because a fault exists on the vehicle. Seek
help from a specialist garage.
Park Assist faulty. Workshop!
The parking procedure is not possible because a fault exists in the system.
Seek help from a specialist garage.
ASR intervention. Take over steering!
The parking procedure is terminated by a TCS intervention.
Aut. parking space exit not possible. Space too small.
The manoeuvring procedure using the system is not possible. The parking gap
is too small.
Braking intervention. Speed too high.
The speed was too high during the parking and was automatically reduced.
Cruise Control System
Introduction
This chapter contains information on the following subjects:
Functioning
160
Operating Description
161
The Cruise Control System (CCS) maintains a set speed without you having to
actuate the accelerator pedal.
The state where the CCS maintains the speed is referred to hereinafter as the
control .
WARNING■
The general information relating to the use of assistance systems must
be observed » page 142, in section Introduction .■
After pressing the clutch pedal, no interrupted control occurs! For exam-
ple, if a different gear is engaged and the clutch pedal is released, control is
continued.
Functioning
Fig. 196
MAXI DOT display (monochrome): Examples of status displays
the CCS
160Driving

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

The Front Assist (hereinafter referred to as the system) warns you of the dan-
ger 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 143.WARNING■
Please take note of the general points relating to the use of assistance
systems » page 142, 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.
Operation
Read and observe
and on page 169 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.
▶ Prepares the brakes for emergency braking prior to a detected danger.
▶ Assists with a brake action triggered by the driver.
▶ If the driver fails to respond to a detected danger, an automatic braking ac-
tion is performed.
The system can work only if the following basic conditions are met. The system is activated.
The TCS is activated » page 143, Braking and stabilisation systems .
The vehicle is moving 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 144.Distance warning (dangerous distance)Fig. 207
Symbols in the instrument cluster: Note (dangerous
proximity)
Read and observe and on page 169 first.
The display of the distance warning is for vehicles with MAXI DOT display.
If a safe interval to the vehicle ahead falls below a minimum the display of the
instrument cluster shows the symbol
» Fig. 207 .
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.
Warning and automatic braking
Fig. 208
Symbols in the instrument cluster: Warning or emer-
gency braking at low speed
Read and observe and on page 169 first.
Emergency braking at low speed
In a driving speed range of about 5 km/h to about 30 km/h the automatic brak- ing action is not preceded by a warning. With an immediate impact hazard au-
tomatic braking is done with the breaking force increasing in stages.
169Assist 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