Warning with braking function
Display
If a collision with a person detected in this way
is imminent, a warning symbol appears on the
instrument cluster.
The red symbol is displayed and a signal
sounds.
Intervene immediately by braking or
make an evasive maneuver.
Braking intervention
The warning prompts the driver himself/herself
to react. During a warning, the maximum brak‐
ing force is used. Premise for the brake booster
is sufficiently quick and sufficiently hard step‐
ping on the brake pedal. The system can assist
with some braking intervention if there is risk of
a collision. At low speeds vehicles may thus come to a complete stop.
Manual transmission: During a braking inter‐
vention up to a complete stop, the engine may
be shut down.
The braking intervention is executed only if DSC
Dynamic Stability Control is switched on.
The braking intervention can be interrupted by
stepping on the accelerator pedal or by actively
moving the steering wheel.
Object detection can be restricted. Limitations
of the detection range and functional restric‐
tions are to be considered.
System limits
Detection range The detection potential of the camera is lim‐
ited.
Thus a warning might not be issued or be is‐
sued late.
E. g. the following situations may not be de‐
tected:▷Partially covered pedestrians.▷Pedestrians that are not detected as such
because of the viewing angle or contour.▷Pedestrians outside of the detection range.▷Pedestrians having a body size less than
32 in/80 cm.
Functional limitations
The system may not be fully functional or may
not be available in the following situations:
▷In heavy fog, rain, sprayed water or snow‐
fall.▷In tight curves.▷If the camera viewing field or the front
windshield are dirty or covered.▷If the driving stability control systems are
deactivated, e.g. DSC OFF.▷Up to 10 seconds after the start of the en‐
gine, via the Start/Stop knob.▷During calibration of the camera immedi‐
ately after vehicle shipment.▷If there is constant blinding effects because
of oncoming light, e. g., from the sun low in
the sky.▷When it is dark outside.
Brake force display
The concept
▷During normal brake application, the brake
lights light up.Seite 92CONTROLSSafety92
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Driving stability control systemsVehicle features and op‐
tions
This chapter describes all standard, country-
specific and optional features offered with the
series. It also describes features that are not
necessarily available in your car, e. g., due to
the selected options or country versions. This
also applies to safety-related functions and sys‐
tems. The respectively applicable country provi‐
sions must be observed when using the respec‐
tive features and systems.
Antilock Brake System
ABS
ABS prevents locking of the wheels during
braking.
The vehicle contains its steering power even
during full brake applications, thus increasing
active safety.
ABS is operational every time you start the en‐
gine.
Brake assistant
When you apply the brakes rapidly, this system
automatically produces the greatest possible
braking force boost. It reduces the braking dis‐
tance to a minimum during emergency stop.
This system utilizes all of the benefits provided
by ABS.
Do not reduce the pressure on the brake pedal
for the duration of the emergency stop.DSC Dynamic Stability
Control
The concept
DSC prevents traction loss in the power wheels
when driving off and accelerating.
DSC also recognizes unstable vehicle conditions
such as fishtailing or nose-diving. Within the
physical limits DSC helps to keep the vehicle on
a steady course by reducing engine speed and
by applying brakes to the individual wheels.
Adjust your driving style to the situationAn appropriate driving style is always the
responsibility of the driver.
The laws of physics cannot be repealed, not
even with DSC.
Therefore, do not reduce the additional safety
margin by driving in a risky manner. ◀
Indicator/warning lights The indicator lamp flashes: DSC controls
the drive and braking forces.
The indicator lamp lights up: DSC has
failed.
Deactivating DSC: DSC OFF
When DSC is deactivated, driving stability is re‐
duced during acceleration and when driving in
curves.
To increase vehicle stability, activate DSC again
as soon as possible.
Deactivating DSC Press and hold this button but not lon‐
ger than approx. 10 seconds, until the
indicator lamp for DSC OFF lights up in the in‐
strument cluster and displays DSC OFF.Seite 94CONTROLSDriving stability control systems94
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The DSC system is switched off.
Activating DSC Press button.
DSC OFF and the DSC OFF indicator
lamp go out.
Indicator/warning lights
When DSC is deactivated, DSC OFF is displayed
in the instrument cluster.
The indicator lamp lights up: DSC is de‐
activated.
Automatic activation When DSC is deactivated, automatic activation
occurs in the following situations:▷The vehicle has a flat tire.▷When activating cruise control in TRACTION
or DSC OFF mode.
DTC Dynamic Traction
Control
The concept
The DTC system is a version of the DSC where
forward momentum is optimized.
The system ensures maximum headway on
special road conditions or loose road surfaces,
e.g., unplowed snowy roads, but with some‐
what limited driving stability.
Activating the Dynamic Traction Control DTC
provides maximum traction. Driving stability is
limited during acceleration and when driving in
curves.
Therefore drive with appropriate caution.
You may find it useful to briefly activate DTC
under the following special circumstances:
▷When driving in slush or on uncleared,
snow-covered roads.▷When freeing vehicle from deep snow or
driving off from loose grounds.▷When driving with snow chains.
Deactivating/activating DTC Dynamic
Traction Control
Activating DTC Press button.
TRACTION is displayed in the instru‐
ment cluster and the indicator lamp for DSC
OFF lights up.
Deactivating DTC Press button again.
TRACTION and the DSC OFF indicator
lamp go out.
Performance Control
Performance Control enhances the agility of the
vehicle.
To increase maneuverability, with a corre‐
spondingly sporty driving style, wheels are
braked individually.
Dynamic Damping Con‐
trol
The concept
The tuning of the suspension can be changed
with the system.
Programs
The system offers several different programs.
Select the programs via the Driving Dynamics
Control, refer to page 96.
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lected distance is briefly displayed in the info
display.
In the following cases, the stored speed value is
deleted and cannot be called up again:▷When the system is switched off.▷When the ignition is switched off.
Changing between cruise control with/
without distance control
Traffic ahead
The cruise control does not react to traffic
driving ahead of you, but instead maintains the
stored speed. Take this factor into account – you yourself must react; otherwise, there is the
risk of an accident. ◀
To reel over to cruise control: Press and hold this button, or
Press and hold this button.
The indicator lamp in the instrument
cluster comes on and check-control
message is displayed as soon as the reel
is made to cruise control.
To reel back to the camera-based cruise con‐
trol, press one of the buttons.
Displays in the instrument cluster
Desired speed In addition to the indicator lamp, the
desired speed is displayed in the central
information display.
▷The indicator lights up green: the system is
active.▷The indicator lights up orange: the system
has been interrupted.▷No display: system is switched off.Brief status display
Selected desired speed.
If --- appears briefly on the display for Check
Control messages, it is possible that the system
requirements are currently not ready for opera‐
tions.
Distance to vehicle ahead of you Selected distance from the vehicle driving
ahead is briefly displayed in the left hand por‐
tion of the info display.Distance displayDistance 1Distance 2Distance 3Distance 4
This value is set after the system is
switched on.
Indicator/warning lights
Personal responsibility
The indicator and warning lights do not
relieve the driver of the responsibility to adapt
his or her desired driving speed and style to the
traffic conditions. ◀
The vehicle symbol lights up orange:
A vehicle has been detected ahead of
you.
The vehicle symbol flashes orange:
The conditions are not adequate for the
system to work.
The system was deactivated but applies the
brakes until you actively resume control by
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Switching on/off manuallyPress button.▷On: the LED lights up.▷Off: the LED goes out.
Display
Signal tones
When approaching an object, an intermittent
sound indicates the position of the object. E. g.
if an object is detected to the left rear of the ve‐
hicle, a signal tone sounds from the left rear
speaker.
The shorter the distance to the object, the
shorter the intervals.
If the distance to a detected object is less than
approx. 10 in/25 cm, a continuous tone is
sounded.
If objects are located both in front of and to the
rear of the vehicle, an alternating continuous
signal is sounded.
The signal tone is switched off, when selector
lever position P is engaged on vehicles with
Steptronic transmission.
Volume
The volume of the PDC signal tone can be ad‐
justed similar to the sound and volume settings
of the radio.
Settings are stored for the profile currently in
use.
System limits
Limits of ultrasonic measurement
Ultrasonic measuring might not function under
the following circumstances:
▷For small children and animals.▷For persons with certain clothing, e.g.
coats.▷With external interference of the ultra‐
sound, e.g. from passing vehicles or loud
machines.▷When sensors are dirty, iced over, damaged
or out of position.▷Under certain weather conditions such as
high relative humidity, rain, snowfall, ex‐
treme heat or strong wind.▷With tow bars and trailer couplings of other
vehicles.▷With thin or wedge-shaped objects.▷With moving objects.▷With elevated, protruding objects such as
ledges or cargo.▷With objects with corners and sharp edges.▷With objects with a fine surface structure
such as fences.▷For objects with porous surfaces.
Low objects already displayed, e.g., curbs, can
move into the blind area of the sensors before
or after a continuous tone sounds.
False warnings
PDC may issue a warning under the following
conditions even though there is no obstacle
within the detection range:
▷In heavy rain.▷When sensors are very dirty or covered with
ice.▷When sensors are covered in snow.▷On rough road surfaces.▷On uneven surfaces, such as speed bumps.▷In large buildings with right angles and
smooth walls, e.g., in underground garages.▷In automatic car washes.▷Through heavy pollution.▷Due to other ultrasound sources, e.g.,
sweeping machines, high pressure steam
cleaners or neon lights.Seite 107Driving comfortCONTROLS107
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The Coasting driving condition is enabled under
certain conditions.
Under certain conditions the engine is auto‐
matically decoupled from the transmission in
selector lever position D. The vehicle continues
traveling with the engine idling to reduce fuel
consumption. Selector lever position D remains
engaged. An indicator provides information
about the distance traveled in Coasting mode.
In addition, context-sensitive instructions are
displayed to assist with an optimized fuel con‐
sumption driving style.
The achieved extended range is displayed in
the instrument cluster.
At a glance The system includes the following MINIMAL
functions and displays:▷GREEN bonus range, refer to page 143.▷GREEN tips driving instruction, refer to
page 144.▷GREEN climate control, refer to page 143.▷Coasting driving condition, refer to
page 144.
Activating GREEN mode
Turn Driving Dynamics Control to
the right until GREEN mode is
displayed in the instrument clus‐
ter.
Configuring GREEN mode
Via radio
1. "Settings"2.Select between "Driving mode" or "GREEN
Mode"
Configure the program.
GREEN tip
"GREEN speed warning":
Displays a reminder when the set GREEN mode
speed is exceeded.
GREEN climate control
"GREEN climate control" :
Climate control is set to be fuel-efficient.
By making a slight change to the set tempera‐
ture, or adjusting the rate of heating or cooling
of the car's interior fuel consumption can be
economized.
The outputs of the seat heater and the exterior
Additionally heat output to seats and exterior
mirror is reduced.
Exterior mirror heat is available when outside
temperatures are very low.
Coasting
Fuel-efficiency can be optimized by disengag‐
ing the engine and Coasting, refer to page 144,
with the engine idling.
This function is only available in GREEN mode.
Display in the instrument cluster
GREEN bonus range An adjusted driving style helps
you extend your driving range.
This may be displayed as the bo‐
nus range in the instrument clus‐
ter.
The bonus range is shown in the range display.
The bonus range is automatically reset every
time the vehicle is refueled.▷Green display: efficient driving style.▷Gray display: adjust driving style, e. g. by
backing off the accelerator pedal.Seite 143Saving fuelDRIVING TIPS143
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Never reach into the engine compart‐
ment
Never reach into spaces or gaps in the engine
compartment; otherwise, there is a risk of in‐
jury, e.g., from rotating or hot parts. ◀
Fold down wiper arm
Before opening the hood, ensure that the
wiper arms are against the windshield, or this
may result in damage. ◀
Opening the hood1.Pull lever, arrow 1.
Hood is unlocked2.After the lever is released, pull the lever
again, arrow 2.
Hood can be opened.
Indicator/warning lights
When the hood is opened, a Check Control
message is displayed.
Closing the hood Hood open when driving
If you see any signs that the hood is not
completely closed while driving, pull over im‐
mediately and close it securely. ◀
Danger of jamming
Make sure that the closing path of the
hood is clear; otherwise, injuries may result. ◀
Let the hood fall from approx. 16 in/40 cm, ar‐
row.
The hood must audibly engage on both sides.
Seite 191Engine compartmentMOBILITY191
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Socket for OBD Onboard
Diagnosis
Note Socket for Onboard Diagnosis
The socket for onboard diagnostics may
only be used by the service center or a work‐
shop that operates in accordance with the
specifications of the vehicle manufacturer with
correspondingly trained personnel and other
authorized persons. Otherwise, use may result
in operating problems for the vehicle. ◀
Position
There is an OBD socket on the driver's side for
checking the primary components in the vehi‐
cle's emissions.
Emissions
▷The warning lamp lights up:
Emissions are deteriorating. Have
the vehicle checked as soon as pos‐
sible.▷The warning lamp flashes under certain cir‐
cumstances:
This indicates that there is excessive misfir‐
ing in the engine.
Reduce the vehicle speed and have the sys‐
tem checked immediately; otherwise, seri‐
ous engine misfiring within a brief period
can seriously damage emission controlcomponents, in particular the catalytic con‐
verter.Seite 198MOBILITYMaintenance198
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