Brief status displaySelected desired speed.
If no speed is indicated, it is possible that the
conditions necessary for operation are not cur‐
rently fulfilled.
Distance to vehicle ahead of you Shown is selected distance to the vehicle driv‐
ing ahead of you.Distance displayDistance 1Distance 2Distance 3Distance 4
This value is set automatically after
the system is switched on.The system has been interrupted or
distance control is temporarily sup‐
pressed 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 detected.Rolling bars: the detected vehicle has driven
away.
ACC is no longer accelerating. To accelerate
further, activate ACC by briefly stepping on
the accelerator pedal, pressing the RES but‐
ton or rocker switch.Indicator/warning lights
Symbol lights up orange:
A vehicle has been detected ahead of
you.
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
pressing on the brake pedal or accelerator
pedal.
Symbol flashes red and a signal
sounds:
You are requested to intervene by
braking or make an evasive maneuver.
Displays in the Head-up Display Some system information can also be dis‐
played in the Head-up Display.
Distance information The symbol is displayed when the dis‐
tance from the vehicle traveling ahead
is too short.
The distance information is active under the
following circumstances:▷Active Cruise Control switched off.▷Display in the Head-up Display selected,
refer to page 98.▷Distance too short.▷Speed greater than approx.
40 mph/70 km/h.
System limits
Speed range The system is best used on well-constructedroads.
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The minimum speed that can be set is
20 mph/30 km/h. The maximum speed that
can be set depends on the vehicle.
The system can also be activated when sta‐
tionary.
Comply with the legal speed limit in every sit‐
uation when using the system.
Detection range
The detection capacity of the system and the
automatic braking capacity are limited.
Two-wheeled vehicles for instance might not
be detected.
Deceleration
The system also does not decelerate in the fol‐
lowing situations:
▷For pedestrians or similar slow-moving
road users.▷For red traffic lights.▷For cross traffic.▷For oncoming traffic.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
personal responsibility to correctly assess the
traffic situation. Based on the limits of the sys‐
tem, it cannot independently react to all traffic
situations. 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.◀
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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.
The rearview camera also switches on.▷If equipped with front PDC: when obsta‐
cles are detected behind or in front of the
vehicle by PDC and the speed is slower
than approx. 2.5 mph/4 km/h.
You may turn off automatic activation:
1."Settings"2."Parking"3.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.
With front PDC: switching on/off
manually
Press button.
▷On: the LED lights up.▷Off: the LED goes out.
The rearview camera image is displayed when
the reverse gear is engaged by pressing the
button.
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
vehicle, 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.
With front PDC: if objects are located both in
front of and behind 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.Turn the controller until the desired setting
is selected.6.Press the controller.
Settings are stored for the profile currently
used.
Visual warning
The approach of the vehicle to an object can
be shown on the Control Display. Objects that
are farther away are already displayed on the
Control Display before a signal sounds.
A display appears as soon as Park Distance
Control (PDC) is activated.
The range of the sensors is represented in the
colors green, yellow and red.
When the image of the rearview camera is dis‐
played, the switch can be made to PDC:
"Rear view camera"
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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, dam‐
aged 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 ga‐
rages.▷In automatic car washes.▷Through heavy pollution.▷Due to other ultrasound sources, e.g.,
sweeping machines, high pressure steam
cleaners or neon lights.
Malfunction
A Check Control message is displayed.
The range of the sensors is shown as a shaded
area on the Control Display.
PDC has failed. Have the system checked.
Surround View
The concept Surround View comprises various camera as‐
sistance systems that help the driver when
parking, maneuvering, and at complex exits
and intersections.
▷Rearview camera, refer to page 153.▷Top View, refer to page 156.▷Side View, refer to page 158.
Rearview camera
The concept The rearview camera provides assistance in
parking and maneuvering backwards. The area
behind the vehicle is shown on the Control
Display.
Information WARNING
The system does not relieve from the
personal responsibility to correctly assess the
traffic situation. There is risk of an accident.
Adjust the driving style to the traffic condi‐
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USB interface for data
transfer
The concept Connection for importing and exporting data
on USB devices, e.g.:▷Personal Profile settings, refer to page 35.▷Music collection, see user's manual for
Navigation, Entertainment and Communi‐
cation.
Information
Observe the following when connecting:
▷Do not use force when plugging the con‐
nector into the USB interface.▷Do not connect devices such as fans or
lights to the USB interface.▷Do not connect USB hard drives.▷Do not use the USB interface for recharg‐
ing external devices.
With navigation system Professional
or TV: at a glance
The USB interface is located in the center arm‐
rest.
Rear cooler
Information WARNING
The cover of the opened cooler pro‐
trudes into the car's interior. Injuries can occur
in the event of an accident, braking or evasive
maneuver. The content of the cooler can be
thrown into the car's interior and injure occu‐
pants. There is risk of injuries. Close the cooler
after use when driving.◀
Folding down the middle section
Reach into the recess and pull forward.
Opening
Pull on the opener and fold the cooler forward. Switching onThe cooler can be operated at two levels.
1.Switch on the ignition.2. Press button once for each cooling
level.
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Socket for OBD Onboard
Diagnosis
Information CAUTION
Improper use of the socket for Onboard
Diagnosis can lead to vehicle malfunctions.
There is risk of property damage. The manu‐
facturer of your vehicle strongly recommends
access to the socket for Onboard Diagnosis be
limited to a dealer's service center, another
qualified service center or repair shop or other
authorized persons.◀
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
possible.▷The warning lamp flashes under certain
circumstances:
This indicates that there is excessive mis‐
firing in the engine.
Reduce the vehicle speed and have the
system checked immediately; otherwise,
serious engine misfiring within a brief pe‐
riod can seriously damage emission con‐trol components, in particular the catalytic
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3.Fold open the holder.4.Slide wiper blade out of the wiper arm.5.Insert the new wiper blade and press it on
until it you hear it snap into the holder.6.Fold down the wipers.
Lamp and bulb replacement
General information
Lights and bulbs make an essential contribu‐
tion to vehicle safety.
The manufacturer of the vehicle recommends
that you have appropriate work performed by a
dealer’s service center or another qualified
service center or repair shop if you are unfami‐
liar with it or if it has not been described here.
A spare lamp box is available from a dealer’s
service center or another qualified service cen‐
ter or repair shop.
Information
Lights and bulbs WARNING
Bulbs can get hot during operation. Con‐
tact with the bulbs can cause burns. There is
risk of injuries. Only change bulbs after they
have cooled off.◀
WARNING
Work on switched-on lighting systems
can cause short circuits. There is risk of inju‐
ries or risk of property damage. When working
on the lighting system, switch off the lamps in
question. If necessary, heed the bulb manufac‐
turer's instructions.◀
CAUTION
Contaminated bulbs reduce their service
life. There is risk of property damage. Do not
hold new bulbs with your bare hands. Use a
clean cloth or something similar, or hold the
bulb by its base.◀
Xenon headlights DANGER
There can be high voltage in the lighting
system. There is danger to life. The manufac‐
turer of your vehicle recommends that the
work on the lighting system including bulb re‐
placement be performed by a dealer’s service
center or another qualified service center or re‐
pair shop.◀
Light-emitting diodes (LEDs)
Some items of equipment use light-emitting
diodes installed behind a cover as a light
source.
These light-emitting diodes, which are related
to conventional lasers, are officially designated as Class 1 light-emitting diodes.Seite 231Replacing componentsMobility231
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WARNING
Too intensive brightness can irritate or
damage the retina of the eye. There is risk of
injuries. Do not look directly into the headlights
or other light sources for an extended period of
time. Do not remove the LED covers.◀
Headlight glass
Condensation can form on the inside of the ex‐
ternal lights in cool or humid weather. When
driving with the lights switched on, the con‐
densation evaporates after a short time. The
headlight glass does not need to be changed.
If despite driving with the lights switched on,
increasing humidity forms, e. g. water droplets
in the lamp, the manufacturer of your vehicle
recommends having it checked by a dealer’s
service center or another qualified service cen‐
ter or repair shop.
Headlight setting
The headlight adjustments can be affected by
changing lights and bulbs. After the headlight
adjustment was changed, have it checked and,
if necessary, corrected by a dealer’s service
center or another qualified service center or re‐
pair shop.
Front lights, bulb replacement
Xenon headlights Information
Because of the long service life of these bulbs,
the likelihood of failure is very low. Switching
the lights on and off frequently shortens their
service life.
If a bulb fails, turn on the front fog lights and
continue the trip with great care. Comply with
local regulations.
DANGER
There can be high voltage in the lighting
system. There is danger to life. The manufac‐
turer of your vehicle recommends that thework on the lighting system including bulb re‐
placement be performed by a dealer’s service
center or another qualified service center or re‐
pair shop.◀
For checking and adjusting headlamp aim,
contact a dealer’s service center or another
qualified service center or repair shop.
Overview1Parking lights / daytime running lights2Low beams/high beams/headlight flasher3Turn signal
Xenon headlights
Low beams and high beams are designed with
xenon technology.
The parking lights and daylight running lights
are made using LED technology.
Contact a dealer’s service center or another
qualified service center or repair shop in the
event of a malfunction.
LED headlights With LED headlights, all front lights and side
indicators are designed with LED technology.
If an LED fails, switch on the front fog lights and continue the trip with great care. Comply
with local regulations.
Contact a dealer’s service center or another
qualified service center or repair shop in the
event of a malfunction.
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