Lights off
Automatic headlight con‐
trol 130
Daytime running lights 131Parking lights 129Automatic headlight con‐
trol 130
Adaptive Light Control 131
High-beam Assistant 132Low beams 129Instrument lighting 133Right roadside parking
lamp 130Left roadside parking lamp 1307Central locking systemUnlocking 63Lock 638Steering column stalk, leftTurn signal 103High beams, head‐
light flasher 103High-beam Assistant 132On-board computer 1229Steering wheel buttons, leftCruise control on/off 175Active Cruise Control on/off 168Resume speed 175 , 168 ,Pause or continue cruise con‐
trol 175 , 168Increase distance 168Reduce distance 168With steering and lane guidance
assistant: adjust speed 168Steering and lane control assis‐
tant on/off 177Cruise control rocker switch 175, 168 ,10Instrument cluster 11311Steering wheel buttons, rightEntertainment sourceVolumeVoice activation system 33TelephoneThumbwheel for selection lists 12112Steering column stalk, rightSeite 15CockpitAt a glance15
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4Glove compartment 2255Radio
Multimedia6Automatic climate control 2037Controller with buttons 228Parking brake 100Automatic Hold 1019PDC Park Distance Control 180
Without Surround View: rearview
camera 184
Surround View 187
Cross traffic warning 197
Parking assistant 193Surround View: Panorama
View 187HDC Hill Descent Control 165Air suspension 20010Driving Dynamics Control 110DSC Dynamic Stability Con‐
trol 16311Steptronic transmission selector
lever 106Seite 17CockpitAt a glance17
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3.Set the parking brake.
Before driving into a car wash
So that the vehicle can roll into a car wash ob‐
serve instructions for going into an automatic
car wash, refer to page 291.
Auto Start/Stop function
The concept The Auto Start/Stop function helps save fuel.
The system switches off the engine during a
stop, e.g., in traffic congestion or at traffic lights. Drive readiness remains switched on.
The engine starts again automatically for driv‐
ing off.
Information After every engine start via the Start/Stop but‐
ton, the Auto Start/Stop function is activated or
deactivated, according to the last setting, refer
to page 99. If the Auto Start/Stop function is
active, it is available as soon as a speed of ap‐
prox. 3 mph, approx. 5 km/h is exceeded.
Engine stop
The engine is switched off automatically dur‐
ing a stop under the following conditions:
▷The selector lever is in selector lever posi‐
tion D.▷The brake pedal remains pressed while the
vehicle is stationary or the vehicle is held
by Automatic Hold.▷The driver's safety belt is buckled or the
driver's door is closed.
The air flow from the air conditioner is reduced
when the engine is switched off.
Displays in the instrument cluster
The display in the tachometer
indicates that the Auto Start/
Stop function is ready for an Au‐
tomatic engine start.
The display indicates that the
conditions for an automatic en‐
gine stop have not been met.
Functional limitations The engine is not switched off automatically in
the following situations:▷In case of a steep downhill grade.▷Brake not engaged strongly enough.▷The external temperature is high and auto‐
matic climate control is running.▷The car's interior has not yet been heated
or cooled to the required level.▷If window condensation is imminent.▷Engine or other parts not at operating tem‐
perature.▷Engine cooling is required.▷The wheels are at a sharp angle or the
steering wheel is being turned.▷Vehicle battery is heavily discharged.▷At higher elevations.▷The engine compartment lid is unlocked.▷HDC Hill Descent Control is activated.▷The parking assistant is activated.▷Stop-and-go traffic.▷Selector lever position in N or R.▷After driving in reverse.▷Use of fuel with high ethanol content.
Starting the engine
The engine starts automatically under the fol‐
lowing conditions:
Seite 98ControlsDriving98
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Press the switch while stepping on the
brake pedal or selector lever position P is
set.
The LED and indicator lamp go out.
The parking brake is released.
Automatic release
The parking brake is released automatically
when you drive away.
The LED and indicator lamp go out.
Automatic Hold
The concept
This system assists the driver by automatically
setting and releasing the brake, such as when
moving in stop-and-go traffic.
The vehicle is automatically held in place when
it is stationary.
On inclines, the system prevents the vehicle
from rolling backward when driving off.
General information
Under the following conditions, the parking
brake is automatically engaged:▷Drive readiness is deactivated.▷The driver's door is opened while the vehi‐
cle is stationary.▷The moving vehicle is brought to a stand‐
still using the parking brake.
The indicator lamp changes from green
to red.
The indicator lamp goes out.
Information WARNING
An unsecured vehicle can put itself into
motion and roll away. There is risk of an acci‐
dent. Before exiting, secure the vehicle against
rolling.
In order to ensure that the vehicle is secured
against rolling away, observe the following:▷Set the parking brake.▷On uphill grades or on a slope, turn the
front wheels in the direction of the curb.▷On uphill grades or on a slope, also secure
the vehicle, e.g. with a wheel chock.◀
CAUTION
If the vehicle is stationary, Automatic
Hold engages the parking brake. It prevents
the vehicle from rolling in a car wash. There is
risk of property damage. Deactivate Automatic
Hold prior to entering the car wash.◀
WARNING
Unattended children or animals can
move the vehicle and endanger themselves
and traffic, e.g. with the following actions:
▷Pressing the Start/Stop button.▷Releasing the parking brake.▷Opening and closing of doors or windows.▷Shifting the selector lever into neutral.▷Using vehicle equipment.
There is risk of accidents or injuries. Do not
leave children or animals unattended in the ve‐
hicle. Carry remote control along when exiting
and lock the vehicle.◀
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▷Interference through systems or devices
with the same radio frequency: After leav‐
ing the area of the interference, the system
automatically becomes active again.▷TPM could not conclude the reset: perform
the reset of the system again.▷A wheel without TPM electronics is
mounted: Have it checked by a dealer’s
service center or another qualified service
center or repair shop as needed.▷Malfunction: Have system checked imme‐
diately by a dealer’s service center or an‐
other qualified service center or repair
shop.
For more information, see Tire Pressure Moni‐
tor, refer to page 264.
Steering system Steering system in some cases not
working.
Have steering system checked imme‐
diately by a dealer’s service center or another
qualified service center or repair shop.
Engine functions Engine function disturbed. Have vehi‐
cle checked immediately by a dealer’s
service center or another qualified
service center or repair shop.
For additional information, refer to On-board
Diagnostics socket, refer to page 280.
Green lights Turn signal Turn signal switched on.
Unusually rapid flashing of the indicator
lamp indicates that a turn signal bulb
has failed.
For additional information, refer to Turn signal,
refer to page 103.
Parking lights, headlight control
Parking lights or headlights are acti‐
vated.
For additional information, refer to
Parking lights/low beams, headlight control, re‐
fer to page 129.
Lane departure warning The system is activated. At least one
lane marking was detected and warn‐
ings can be issued.
For additional information, refer to Lane depar‐
ture warning, refer to page 150.
Front fog lights Front fog lights are activated.
For additional information, refer to
Front fog lights, refer to page 132.
High-beam Assistant High-beam Assistant is switched on.
High beams are activated and off auto‐
matically as a function of the traffic sit‐
uation.
For additional information, refer to High-beam
Assistant, refer to page 132.
Automatic Hold Function is activated. The vehicle is au‐
tomatically held in place when it is sta‐
tionary.
For more information, see Automatic Hold, re‐
fer to page 101.
Blue lights
High beams High beams are activated.Seite 116ControlsDisplays116
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Driving stability control systemsVehicle features and optionsThis 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
systems. The respectively applicable country
provisions must be observed when using the
respective features and systems.
Anti-lock Braking 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.
Adaptive brake assistant In combination with the Active Cruise Control,
this system ensures that the brakes respond
even more rapidly when braking in critical sit‐
uations.Drive-off assistant
This system supports driving off on inclines.
The parking brake is not required.1.Hold the vehicle in place with the foot
brake.2.Release the foot brake and drive off with‐
out delay.
After the foot brake is released, the vehicle is
held in place for approx. 2 seconds.
The possible holding duration amounts to
2 minutes.
Depending on the vehicle load or when a trailer
is used, the vehicle may roll back slightly.
DSC Dynamic Stability
Control
The concept DSC prevents traction loss in the power
wheels when driving off and accelerating.
DSC also recognizes unstable vehicle condi‐
tions such as fishtailing or nose-diving. Within
the physical limits DSC helps to keep the vehi‐
cle on a steady course by reducing engine
speed and by applying brakes to the individual
wheels.
Information
Adapt your driving style to the situation, for an
appropriate driving style is always the respon‐
sibility 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.
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Driver assistance systemsVehicle features and options
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
systems. The respectively applicable country
provisions must be observed when using the
respective features and systems.
Active Cruise Control with Stop & Go function, ACC
The concept
Use this system to select a desired speed that
the vehicle will maintain automatically on clear
roads.
To the extent possible, the system automati‐
cally adjusts the speed to a slower vehicle
ahead of you.
The distance that the vehicle maintains to the
vehicle ahead of you can be varied. For safety
reasons, it depends on the speed.
To maintain a certain distance, the system au‐
tomatically reduces the speed, applies the
brakes lightly, or accelerates again if the vehi‐
cle ahead begins moving faster.
If the vehicle ahead of you brakes to a halt, and
then proceeds to drive again within a brief pe‐
riod, the system is able to detect this within the
given system limits. Your own vehicle will
brake automatically and then accelerate again.
If the vehicle ahead of you drives away again
after a prolonged period, briefly press the ac‐
celerator pedal or press the appropriate button
to reactivate the system. The vehicle will auto‐
matically accelerate.As soon as the road is clear, the vehicle accel‐
erates to the desired speed.
Vehicles driving ahead are captured by a radar
sensor and a camera.
General information
Depending on the driving settings, the features
of the cruise control can change in certain
areas.
The desired speed is also maintained downhill,
but may not be maintained on uphill grades if
engine power is insufficient.
Due to the driving style that minimizes fuel
consumption in ECO PRO drive mode, the ve‐
hicle may drop below the set desired speed in
some situations, e.g. on uphill grades.
Information 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.◀
WARNING
An unsecured vehicle can put itself into
motion and roll away. There is risk of an acci‐
dent. Before exiting, secure the vehicle against
rolling.
In order to ensure that the vehicle is secured
against rolling away, observe the following:▷Set the parking brake.▷On uphill grades or on a slope, turn the
front wheels in the direction of the curb.▷On uphill grades or on a slope, also secure
the vehicle, e.g. with a wheel chock.◀Seite 168ControlsDriver assistance systems168
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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 trafficsituation. If necessary, intervene actively, e.g.
by braking, steering or evading.
Radar sensor
For US owners only
The transmitter and receiver units comply with
part 15 of the FCC/Federal Communication
Commission regulations. Operation is gov‐
erned by the following:
FCC ID:▷OAYARS3-A
Compliance statement:
This device complies with part 15 of the FCC
Rules. Operation is subject to the following
two conditions:
▷This device may not cause harmful inter‐
ference, and▷this device must accept any interference
received, including interference that may
cause undesired operation.
Any unauthorized modifications or changes to
these devices could void the user's authority to
operate this equipment.
Malfunction
The system cannot be activated if the radar sensor is not aligned correctly. This may be
caused by damage incurred during parking,
e.g.
A Check Control message is displayed if the
system fails.
The function for detecting and responding
when approaching stationary vehicles may be limited in the following situations:
▷During calibration of the camera immedi‐
ately after vehicle delivery.▷If the camera is malfunctioning or dirty. A
Check Control message is displayed.
Cruise control
The concept The system maintains a preset speed via the
buttons on the steering wheel. The system
brakes on downhill gradients if engine braking
is insufficient.
General information
Depending on the driving settings, the features
of the cruise control can change in certain
areas.
The desired speed is also maintained downhill,
but may not be maintained on uphill grades if
engine power is insufficient.
Due to the driving style that minimizes fuel
consumption in ECO PRO drive mode, the ve‐
hicle may drop below the set desired speed in
some situations, e.g. on uphill grades.
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.▷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.◀
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