
▷The car's interior has not yet been heated
or cooled to the required level.▷The engine is not yet at operating temper‐
ature.▷The wheels are at a sharp angle or the
steering wheel is being turned.▷After driving in reverse.▷Fogging of the windows when the auto‐
matic climate control is switched on.▷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 in selector lever position N,
M/S or R.▷Use of fuel with high ethanol content.
Starting the engine
The engine starts automatically under the fol‐
lowing conditions:
▷Steptronic transmission: by releasing the
brake pedal.
When Automatic Hold is activated: press
the accelerator pedal.
After the engine starts, accelerate as usual.
Safety mode
After the engine switches off automatically, it
will not start again automatically if any one of
the following conditions are met:
▷The driver's safety belt is unbuckled and
the driver's door is open.▷The hood was unlocked.
Some indicator lights light up for a varied
length of time.
The engine can only be started via the Start/
Stop button.
Functional limitations
Even if driving off was not intended, the deacti‐
vated engine starts up automatically in the fol‐
lowing situations:▷Excessive warming of the car's interior
when the cooling function is switched on.▷The steering wheel is turned.▷Steptronic transmission: change from se‐
lector lever position D to R, N or M/S.▷Steptronic transmission: change from se‐
lector lever position P to N, D, R or M/S.▷Fogging of the windows when the auto‐
matic climate control is switched on.▷Vehicle battery is heavily discharged.▷Excessive cooling of the car's interior when
the heating is switched on.
Activating/deactivating the system
manually
Using the button
Press button.
▷LED comes on: Auto Start/Stop function is
deactivated.
The engine is started during an automatic
engine stop.
The engine can only be stopped or started
via the Start/Stop button.▷LED goes out: Auto Start/Stop function is
activated.Seite 71DrivingControls71
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The engaged gear is displayed in the instru‐
ment cluster, for example, S1.
The sport program of the transmission is acti‐
vated.
Activating the M/S manual mode1.Press the selector lever to the left out of
selector lever position D.2.Push the selector lever forward or pull it
backward.
Manual mode M/S becomes active and the
gear is changed.
The engaged gear is displayed in the instru‐
ment cluster, for example, M1.
If the situation requires, the Steptronic trans‐
mission continues to shift automatically.
Example: once maximum engine speed is at‐
tained, M/S manual mode is automatically up‐
shifted as needed.
Switching to manual mode
▷To shift down: press the selector lever for‐
ward.▷To shift up: pull the selector lever rear‐
wards.
Gears will only be shifted at appropriate engine
and road speeds, for example downshifting is
not possible if the engine speed is too high.
The selected gear is briefly displayed in the in‐
strument cluster, followed by the currently se‐
lected gear.
Steptronic Sport transmission: avoid automatic upshifting in M/S manual
mode
The Steptronic Sport transmission does not
automatically upshift in M/S manual mode
once the maximum speed is reached, if one of
the following conditions is met:
▷DSC deactivated.▷TRACTION activated.▷SPORT+ activated.In addition, there is no downshifting for kick‐
down.
With the respective transmission version, the
lowest possible gear can be selected by simul‐
taneously operating the kickdown and the left
shift paddle. This is not possible, when switch‐
ing briefly via the shift paddles from selector
lever position D to manual mode M/S.
Ending the sport program/manual
mode
Push the selector lever to the right.
D is displayed in the instrument cluster.
Shift paddles
The shift paddles on the steering wheel allow
you to shift gears quickly while keeping both
hands on the steering wheel.
▷Shift up: briefly pull right shift paddle.▷Shift down: briefly pull left shift paddle.▷With the respective transmission version,
the lowest possible gear can be selected
by pulling and holding the left shift paddle.
Gears will only be shifted at appropriate engine
and road speeds, for example downshifting is
not possible if the engine speed is too high.
The selected gear is briefly displayed in the in‐
strument cluster, followed by the current gear.
If the shift paddles on the steering wheel are
used to shift gears in automatic mode, the
transmission switches to manual mode tempo‐
rarily in selector lever position D and perma‐
nently in selector lever position S.
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RequirementsLaunch Control is available when the engine is
warmed up, that is, after uninterrupted driving
of at least 6 miles/10 km.
To start with Launch Control do not steer the
steering wheel.
Start with launch control While the engine is running:1. Press button or select Sport+ with
the Driving Dynamics Control.
TRACTION is displayed in the instrument
cluster and the indicator lamp for DSC OFF
lights up.2.Engage selector lever position S.3.With the left foot, forcefully press down on
the brake.4.Press and hold down the accelerator pedal
beyond the resistance point at the full
throttle position, kickdown.
A flag symbol is displayed in the instru‐
ment cluster.5.The starting engine speed adjusts. Within
3 seconds, release the brake.
Before using Launch Control again, allow the
transmission to cool down for approx. 5 mi‐
nutes.
Launch Control adjusts to the surrounding
conditions, for example, wet pavement, when
used again.
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Pedestrian warningSymbol in the instrument cluster.
If a collision with a person detected in
this way is imminent, the symbol lights
up and a signal sounds.
Orange lights
Active Cruise Control The number bars shows the selected
distance from the vehicle driving
ahead.
For additional information, refer to Active
Cruise Control with Stop&Go function, ACC,
refer to page 136.
Vehicle detection, Active Cruise Control Illuminated: vehicle driving ahead de‐
tected.
Flashing: the conditions are not ade‐
quate for operating the system.
The system was deactivated but applies the
brakes until you actively resume control by
pressing on the brake pedal or accelerator
pedal.
Yellow lights
Anti-lock Braking System ABS Avoid sudden braking as much as pos‐
sible. Braking force boost may not be
working. Take into account the longer
brake distance. Have the system im‐
mediately checked by a dealer’s serv‐
ice center or another qualified service
center or repair shop.
DSC Dynamic Stability Control Flashing: DSC controls the drive and
braking forces. The vehicle is stabi‐lized. Reduce speed and adapt driving style to
the driving circumstances.
Illuminated: DSC failed. Have the system
checked by a dealer’s service center or an‐
other qualified service center or repair shop.
For additional information, refer to Dynamic
Stability Control DSC, refer to page 129.
DSC Dynamic Stability Control is
deactivated or DTC Dynamic Traction
Control is activated
Dynamic Stability Control DSC is
switched off or Dynamic Traction Con‐
trol DTC is switched on.
For additional information, refer to Dynamic
Stability Control DSC, refer to page 129, and
Dynamic Traction Control DTC, refer to
page 130.
Flat Tire Monitor FTM The Flat Tire Monitor signals a loss of
tire inflation pressure in a tire.
Reduce your speed and stop cau‐
tiously. Avoid sudden braking and steering ma‐
neuvers.
For more information, see Flat Tire Monitor, re‐
fer to page 112.
Tire Pressure Monitor TPM Illuminated: the Tire Pressure Monitor
signals a loss of tire inflation pressure
in a tire.
Reduce your speed and stop cautiously. Avoid
sudden braking and steering maneuvers.
Flashing and then continuously illuminated: no
flat tire or loss of tire inflation pressure can be
detected.▷Interference through systems or devices
with the same radio frequency: After leav‐
ing the area of the interference, the system
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▷TPM was unable to complete the reset.
Reset 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 the system checked by a
dealer’s service center or another qualified
service center or repair shop.
For more information, see Tire Pressure Moni‐
tor, refer to page 108.
Steering system Steering system in some cases not
working.
Have the steering system checked by a
dealer’s service center or another qualified
service center or repair shop.
Engine functions Have the vehicle checked 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 227.
Lane departure warning System is switched on and under cer‐
tain circumstances warns if a detected
lane is left without flashing beforehand.
For additional information, refer to Lane depar‐
ture warning, refer to page 124.
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 75.
Parking lights, headlight control Parking lights or headlights are acti‐
vated.
For additional information, refer to
Parking lights/low beams, headlamp control,
refer to page 100.
Front fog lights Front fog lights are activated.
For additional information, refer to
Front fog lights, refer to page 103.
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 102.
Cruise control The system is switched on. It maintains
the speed that was set using the con‐
trol elements on the steering wheel.
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 73.Seite 87DisplaysControls87
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Speed limit detection can also be displayed in
the Head-up Display.
System limits The system may not be fully functional and
may provide incorrect information in the fol‐
lowing situations:▷In heavy fog, rain or snowfall.▷When signs are fully or partially concealed
by objects, stickers or paint.▷When driving very close to the vehicle in
front of you.▷When driving toward bright lights or strong
reflections.▷When the windshield behind the interior
mirror is fogged over, dirty or covered by a
sticker, etc.▷In the event of incorrect detection by the
camera.▷If the speed limits stored in the navigation
system are incorrect.▷In areas not covered by the navigation sys‐
tem.▷When roads differ from the navigation,
such as due to changes in road routing.▷When passing buses or trucks with a
speed sticker.▷If the traffic signs are non-conforming.▷During calibration of the camera immedi‐
ately after vehicle delivery.▷When signs are detected valid for a parallel
road.
Selection lists in the
instrument cluster
The concept Depending on your vehicle's optional features,
the following can be displayed or operated us‐
ing the buttons and the thumbwheel on the
steering wheel as well as the displays in the in‐
strument cluster and the Head-up Display:▷Current audio source.▷Redial phone feature.▷Turn on voice activation system.
Display
Depending on your vehicle's optional features,
the list in the instrument cluster can differ from
the illustration shown.
Activating a list and adjusting the
setting
On the right side of the steering wheel, turn
the thumbwheel to activate the corresponding
list.
Using the thumbwheel, select the desired set‐
ting and confirm it by pushing the thumbwheel.
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LightsVehicle 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.
Overview Switches in the vehicle
The light switch element is located next to the
steering wheel.
Light functions
SymbolFunctionFront fog lightsAutomatic headlamp control
Adaptive Light ControlLights off
Daytime running lightsSymbolFunctionParking lightsLow beamsInstrument lighting
Parking lights, low beams
and roadside parking lights
General information
Position of switch:
, ,
If the driver door is opened with the ignition
switched off, the exterior lighting is automati‐
cally switched off at these switch settings.
Parking lights
Position of switch:
The vehicle is illuminated on all sides.
Do not use the parking lights for extended pe‐
riods; otherwise, they might drain the battery
and it would then be impossible to start the en‐
gine.
When parking, switch on the one-sided road‐
side parking lamp, refer to page 100.
Low beams Position of switch:
The low beams light up when the ignition is
switched on.
Roadside parking lights
The concept
The vehicle can be illuminated on one side.
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System limits
The automatic headlamp control cannot serve
as a substitute for your personal judgment of
lighting conditions.
E.g. the sensors are unable to detect fog or
hazy weather. To avoid safety risks under
these conditions, you should always switch on
the lights manually.
Daytime running lights
General information Position of switch:
, ,
The daytime running lights light up when the
ignition is switched on. After the ignition is
switched off, the parking lights light up in posi‐
tion
.
Activating/deactivating In some countries, daytime running lights are
mandatory, so it may not be possible to deacti‐
vate the daytime running lights.
On the Control Display:
1."Settings"2."Lighting"3."Daytime running lamps"
Settings are stored for the profile currently
used.
Adaptive Light Control
The concept Adaptive Light Control is a variable headlight
control system that enables dynamic illumina‐
tion of the road surface.
General information
Depending on the steering angle and other pa‐
rameters, the light from the headlamp follows
the course of the road.
To avoid blinding oncoming traffic, the Adap‐
tive Light Control does not swivel to the driv‐
er's side when the vehicle is at a standstill.
Depending on the equipment version, Adap‐
tive Light Control consists of one or several
systems:▷Cornering light, refer to page 102.▷Self-leveling headlights, refer to page 102.
Activating
Position of switch
with the ignition
switched on.
Cornering lights
The cornering lights are automatically
switched on depending on the steering angle
or the use of turn signals.
When driving in reverse, the cornering lights
may be automatically switched on regardless
of the steering angle.
Self-leveling headlights
The self-leveling headlights compensate for
acceleration and braking operations in order
not to blind the oncoming traffic and to achieve
optimum illumination of the roadway.
Malfunction
A Check Control message is displayed.
Adaptive Light Control is malfunctioning or has
failed. Have the system immediately checked
by a dealer’s service center or another quali‐
fied service center or repair shop.
High-beam Assistant
The concept The high-beam Assistant detects other traffic
participants early on and automatically
switches the high beams on or off depending
on the traffic situation. The assistant ensures
that the high beams are switched on, when‐
ever the traffic situation allows. In the low
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