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because the accelerator pedal is being pressed;
a vehicle was not detected.
Distance control is temporarily sup‐
pressed because the accelerator pedal
is being pressed; a vehicle was de‐
tected.
System limits
Speed range The system is best used on well-constructedroads. The system is functional at speeds be‐
ginning at approx. 20 mph/30 km/h.
The max. speed that can be set is
85 mph/140 km/h.
Comply with the legal speed limit and safety
distance in every situation when using the sys‐
tem.
Detection range
The detection capacity of the system and the
automatic braking capacity are limited.
Two-wheeled vehicles for instance might not
be detected.
WARNING
The system does not relieve from the per‐
sonal responsibility to correctly assess the traf‐
fic situation. Based on the limits of the system,
it cannot independently react to all traffic situa‐
tions. There is risk of an accident. Adjust the
driving style to the traffic conditions. Watch
traffic closely and actively interfere in the re‐
spective situations. ◀
Deceleration The system also does not decelerate in the fol‐
lowing situations:▷In case of pedestrians, cyclists or similar
slow road users.▷For red traffic lights.▷For cross traffic.▷For oncoming traffic.▷Unlit vehicles or vehicles with nonworking
lighting at night.
Swerving vehicles
A vehicle driving in front of you is not detected
until it is completely within the same lane as
your vehicle.
If a vehicle driving ahead of you suddenly
swerves into your lane, the system may not be
able to automatically restore the selected dis‐
tance. This also applies to major speed differ‐
ences to vehicles driving ahead of you, e.g.,
when rapidly approaching a truck. When a ve‐
hicle driving ahead of you is reliably detected,
the system requests that the driver intervene
by braking and carrying out evasive maneu‐
vers, if needed.
WARNING
The system does not relieve from the per‐
sonal responsibility to correctly assess the traf‐
fic situation. Based on the limits of the system,
it cannot independently react to all traffic situa‐
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tions. There is risk of an accident. Adjust the
driving style to the traffic conditions. Watch
traffic closely and actively interfere in the re‐
spective situations. ◀
Cornering
If the desired speed is too high for a curve, the
speed is reduced slightly, although curves can‐
not be anticipated in advance. Therefore, drive
into a curve at an appropriate speed.
In tight curves the system offers only restricted
detection where a vehicle ahead of you might
be detected late or not at all.
When you approach a curve the system may
briefly report vehicles in the next lane due to
the bend of the curve. If the system decelerates
you may compensate it by briefly accelerating.
After releasing the gas pedal the system is reac‐
tivated and controls speed independently.
Weather
In the event of unfavorable weather and light conditions, e. g. if there is rain, snowfall, slush,
fog or glare, this may result in poorer recogni‐
tion of vehicles as well as short-term interrup‐
tions for vehicles that are already detected.
Drive attentively, and react to the current traffic
situation. If necessary, intervene actively, e.g.
by braking, steering or evading.
Malfunction
A Check Control message is displayed if the sys‐
tem fails or was automatically deactivated.
The system may not be fully functional in the
following situations:▷When an object was not correctly detected.▷In heavy fog, rain, sprayed water or snow‐
fall.▷In tight curves.▷If the field of view of the camera or the
front windshield are dirty or covered.▷When driving toward bright lights.▷Up to 20 seconds after the start of the en‐
gine, via the Start/Stop button.▷During calibration of the camera immedi‐
ately after vehicle delivery.
Cruise control
The concept
The system is functional at speeds beginning at
approx. 20 mph/30 km/h.
It maintains the speed that was set using the
control elements on the steering wheel.
The system brakes on downhill gradients if en‐
gine braking is insufficient.
Information WARNING
The use of the system can lead to an in‐
creased risk of accidents in the following situa‐
tions:
▷On winding roads.▷In heavy traffic.Seite 106CONTROLSDriving comfort106
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▷On slippery roads, in fog, snow or rain, or
on a loose road surface.
There is risk of accidents or risk of property
damage. Only use the system if driving at con‐
stant speed is possible. ◀
General information Depending on the driving program, refer to
page 99, set, the characteristics of the cruise
control in particular areas can change.
Overview
Buttons on the steering wheel
Press buttonFunctionCruise control on/offStore speedPausing cruise control
Continue cruise control with the
last settingIncreasing, maintaining or storing
the speedReducing, maintaining or storing
the speed
Controls
Switching on Press button on the steering wheel.
The indicator lamp in the instrument
cluster lights up.
The current speed is adopted as the de‐
sired speed and is displayed with the
symbol in the instrument cluster.
Cruise control is active and maintains the set
speed.
DSC Dynamic Stability Control will be switched
on if needed.
Switch off WARNING
The system does not relieve from the per‐
sonal responsibility to correctly assess the traf‐
fic situation. Based on the limits of the system,
it cannot independently react to all traffic situa‐
tions. There is risk of an accident. Adjust the
driving style to the traffic conditions. Watch
traffic closely and actively interfere in the re‐
spective situations. ◀
Press button on the steering wheel.
The displays go out. The stored desired speed is
deleted.
Interrupting When active, press the button on the
steering wheel.
The system is automatically interrupted in the
following situations:▷When the brakes are applied.▷If the clutch pedal is depressed for a few
seconds or released while a gear is not en‐
gaged.▷If the gear engaged is too high for the cur‐
rent speed.▷If selector lever position N is set.▷If DTC Dynamic Traction Control is activated
or DSC is deactivated.▷When DSC is actively controlling stability.Seite 107Driving comfortCONTROLS107
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Maintaining, storing, and changing the
speed
Information WARNING
The desired speed can be incorrectly ad‐
justed or called up by mistake. There is risk of
an accident. Adjust the desired speed to the
traffic conditions. Watch traffic closely and ac‐
tively interfere in the respective situations. ◀
Maintaining/storing the speed Press button.
Or
or button: press while the system is in‐
terrupted.
When the system is switched on, the current
speed is maintained and stored as the desired
speed.
This is displayed in the instrument cluster.
DSC Dynamic Stability Control will be switched
on if needed.
Changing the speed
or button: press repeatedly until the de‐
sired speed is set.
If active, the displayed speed is stored and the
vehicle reaches the stored speed when the
road is clear.
▷ or button: each time it is pressed to
the point of resistance, the desired speed
increases or decreases by approx.
1 mph/1 km/h.▷ or button: each time it is pressed
past the point of resistance, the desired
speed increases or decreases by a maxi‐
mum of 5 mph/10 km/h.
The maximum speed that can be set de‐
pends on the vehicle.▷ or button: pressing it to the resist‐
ance point and holding it there acceleratesor decelerates the vehicle without requiring
pressure on the accelerator pedal. After the
button is released, the vehicle maintains its
final speed. Pressing the switch beyond the
resistance point causes the vehicle to accel‐
erate more rapidly.
Continue cruise control
Press button on the steering wheel.
The stored speed is reached and maintained.
Displays in the instrument cluster
Indicator lamp Depending on how the vehicle is equip‐
ped, the indicator lamp in the instru‐
ment cluster indicates whether the sys‐
tem is switched on.
Desired speed The desired speed is displayed together
with the symbol.
▷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.
If no speed is indicated, it is possible that the
conditions necessary for operation are not cur‐
rently fulfilled.
PDC Park Distance Con‐
trol
The concept
PDC supports you when parking. When you
slowly approach an object with the rear of your
car or with your front - depending on optional
features - a signal tone is sounded:
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General information
Ultrasound sensors in the bumpers measure
the distances from objects.
The maneuvering range, depending on obsta‐
cles and environmental conditions, is approx.
6 ft/2 m.
An acoustic warning is first given with the fol‐
lowing circumstances:▷By the front middle sensors and the two
corner sensors at approx. 24 in/60 cm.▷By the rear middle sensors at approx.
5 ft/1.50 m.▷When a collision is imminent
Information
Loud noises from outside and inside the vehicle
may prevent you from hearing the PDC's signal tone.
WARNING
The system does not relieve from the per‐
sonal responsibility to correctly assess the traf‐
fic situation. There is risk of an accident. Adjust
the driving style to the traffic conditions. Watch
traffic and vehicle surroundings closely and ac‐
tively interfere in the respective situations. ◀
WARNING
Due to high speeds when PDC is acti‐
vated, the warning can be delayed due to phys‐
ical circumstances. There is risk of injuries or
risk of property damage. Avoid approaching an
object too fast. Avoid driving off fast while PDC
is not yet active. ◀
Overview
Button in the vehicle
PDC Park Distance Control
Ultrasound sensors PDC sensors on the vehicle.
Functional requirements
To ensure full functionality:
▷Do not cover sensors, e.g., with stickers, bi‐
cycle racks.▷Keep the sensors clean and free of ice.
To clean: when using high-pressure washers,
do not spray the sensors for long periods and
maintain a distance of at least 12 in/30 cm.
Switching on/off
Switching on automatically
PDC switches on automatically in the following
situations:
▷If selector lever position R is engaged when
the engine is running.▷If, with the appropriate equipment, obsta‐
cles are detected behind or in front of the
vehicle by PDC and the speed is slower than
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You may turn off automatic activation via the
radio:1. Press button.2. "Settings"3."Parking"4."Auto PDC"5.Select setting.
Settings are stored for the profile currently
used.
Automatic deactivation during forward
travel
The system switches off when a certain driving
distance or speed is exceeded.
Switch the system back on if needed.
Switching on/off manually Press 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 ratio of the PDC signal tone volume to the
entertainment volume can be adjusted.1. "Multimedia", "Radio" or
"Settings"2."Tone"3."Volume settings"4."PDC"5.To adjust: turn the controller.6.To store: press the controller.
Settings are stored for the profile currently
used.
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.Seite 110CONTROLSDriving comfort110
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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.
The malfunction is signaled by a continuous
tone alternating between the front and rear
speakers. As soon as the malfunction due
to other ultrasound sources is no longer
present, the system is again fully functional.
Malfunction
A Check Control message, refer to page 63, is
displayed in the instrument cluster.
PDC has failed. Have the system checked.
Parking assistant
The concept
This system assists the driver in parking parallel
to the road.
Ultrasound sensors measure parking spaces on
both sides of the vehicle.
The parking assistant calculates the best possi‐
ble parking line and takes control of steering
during the parking procedure.
When parking, also take note of the visual and
acoustic information issued by the PDC and the
parking assistant and react accordingly.
A component of the parking assistant is the
PDC Park Distance Control, refer to page 108.
Information WARNING
The system does not relieve from the per‐
sonal responsibility to correctly assess the traf‐
fic situation. Based on the limits of the system,
it cannot independently react to all traffic situa‐
tions. There is risk of an accident. Adjust the
driving style to the traffic conditions. Watch
traffic closely and actively interfere in the re‐
spective situations. ◀
CAUTION
The parking assistant can steer the vehi‐
cle over or onto curbs. There is risk of property
damage. Watch traffic closely and actively in‐
terfere in the respective situations. ◀
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An engine that has been switched off by the
Auto Start Stop function is restarted automati‐
cally when the parking assistant is activated.
Overview
Button in the vehicle
Parking assistant
Ultrasound sensors
The ultrasound sensors for measuring parking
spaces are located on the wheel housing.
To ensure full functionality:
▷Keep the sensors clean and free of ice.▷When using high-pressure washers, do not
spray the sensors for long periods and
maintain a distance of at least 12 in/30 cm.▷Do not put stickers over sensors.Requirements
For measuring parking spaces▷Maximum speed while driving forward ap‐
prox. 22 mph/35 km/h.▷Maximum distance to row of parked vehi‐
cles: 5 ft/1.5 m.
Suitable parking space
▷Gaps behind an object that has a min.
length of 5 ft/1.5 m.▷Gap between two objects with a minimum
length of approx. 5 ft/1.5 m.▷Min. length of gap between two objects:
your vehicle's length plus approx.
3.3 ft/1.0 m.▷Minimum depth: approx. 5 ft/1.5 m.
Regarding the parking procedure
▷Doors and tailgate closed.▷Parking brake released.▷When parking in parking spaces on the
driver's side, the corresponding turn signal
must be set.
Switching on/off
Switching on with the button Press button.
The LED lights up.
The current status of the parking space search
is indicated on the radio.
Parking assistant is activated automatically.
Switching on with reverse gear
Shift into reverse.
As soon as a suitable parking space is recog‐ nized by the system, the following query is dis‐
played on the radio display: "Start vehicle
parking?"
"OK": activate parking assistant.
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