The radio ready state is switched on.3.Set the parking brake.
Automatic Engine 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 a traffic congestion or at traffic
lights. The ignition remains switched on. The
engine starts again automatically for driving
off.
Certain vehicle components may experience
additional wear as a result of this system.
Automatic mode
The Auto Start/Stop function is operational af‐
ter each engine start.
This function is activated at speeds faster than
about 3 mph, approx. 5 km/h.
Engine stop
The engine is switched off automatically dur‐
ing a stop under the following conditions:
Automatic transmission:
▷The selector lever is in transmission posi‐
tion D.▷The brake pedal remains pressed while the
vehicle is stationary or the vehicle is held
by Automatic Hold.▷The driver's seat belt is buckled or the driv‐
er's door is closed.
The air volume of the air conditioner is reduced
when the engine is switched off.
Displays in the instrument cluster The display indicates that the
automatic engine start-stop
function is ready for an auto‐
matic engine start.
The display indicates that the
conditions for an automatic en‐
gine stop have not been satis‐
fied.
Note
The engine is not switched off automatically in
the following situations:▷External temperature too low.▷The external temperature is high and auto‐
matic climate control is running.▷The passenger compartment 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.▷The engine compartment lid is unlocked.▷HDC Hill Descent Control is activated.▷The parking assistant is activated.▷Stop-and-go traffic.▷The transmission selector lever is in posi‐
tion N or M/S.▷Use of fuel with high ethanol content.
Starting the engine
The engine starts automatically under the fol‐
lowing conditions:
▷Automatic transmission:
By releasing the brake pedal.
When Automatic Hold is activated: press
the accelerator.
After the engine starts, accelerate as usual.
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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 lamps light up for varying
lengths of time.
The engine can only be started via the Start/
Stop button.
Note Even if driving away was not intended, the de‐
activated engine starts up automatically in the
following situations:
▷Excessive warming of the passenger com‐
partment when the cooling function is
switched on.▷The steering wheel is turned.▷Automatic transmission: the transmission
position is changed from D to N, R, or M/S.▷Automatic transmission: the transmission
position is changed from 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 passenger com‐
partment when the heating is switched on.Activating/deactivating the system
manually
Using the button
Press the 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.
Switching off the vehicle during an
automatic engine stop
During an automatic engine stop, the vehicle
can be switched off permanently, e.g., when
leaving it.
1.Press the Start/Stop button. The ignition is
switched off. The Auto Start/Stop function
is deactivated.
Transmission position P is engaged auto‐
matically.2.Set the parking brake.
Engine start as usual via Start/Stop button.
Automatic deactivation
In certain situations, the Auto Start/Stop func‐
tion is deactivated automatically for safety rea‐
sons, such as when the driver is detected to be
absent.
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All washer nozzles are supplied from one res‐
ervoir.
Fill with a mixture of windshield washer con‐
centrate and tap water and – if required – with a
washer antifreeze, according to the manufac‐
turer's recommendations.
Mix the washer fluid before adding to maintain
the correct mixing ratio.
Do not add windshield washer concentrate and
antifreeze undiluted and do not fill with pure
water; this could damage the wiper system.
Do not mix window washer concentrates of dif‐
ferent manufacturers, because otherwise it can
result in clogging of the windshield washer
nozzles.
For the capacity, refer to technical data.
Automatic transmission with
Steptronic
Transmission positions
D Drive, automatic position
Position for normal vehicle operation. All for‐
ward gears are available.
R is Reverse
Select only when the vehicle is stationary.
N is NeutralUse in automatic car washes, for example. The
vehicle can roll.
When the ignition is switched off, refer to
page 58, position P is engaged automatically.
P Park Select only when the vehicle is stationary. The
drive wheels are blocked.
P is engaged automatically:▷After the engine is switched off when the
vehicle is in radio ready state, refer to
page 59, or when the ignition is switched
off, refer to page 58, and when position R
or D is engaged.▷With the ignition is off, if position N is en‐
gaged.▷If the safety belt is unbuckled, the driver's
door is opened, and the brake pedal is not
pressed while the vehicle is stationary and
transmission position R or D is engaged.
Before exiting the vehicle, make sure that posi‐
tion P of the automatic transmission is en‐
gaged. Otherwise, the vehicle may begin to
roll.
Kickdown
Kickdown is used to achieve maximum driving
performance. Press on the gas pedal beyond
the resistance point at the full throttle position.
Engaging the transmission position
▷Transmission position P can only be disen‐
gaged if the engine is running and the
brake pedal is pressed.▷With the vehicle stationary, press on the
brake pedal before shifting out of P or N;
otherwise, the shift command will not be
executed: shift lock.
Depress the brake until you start
driving
To prevent the vehicle from creeping after
you select a driving position, maintain
pressure on the brake pedal until you are
ready to start.◀Seite 68ControlsDriving68
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Protective action
Airbags are not triggered in every impact situa‐
tion, e.g., in less severe accidents or rear-end
collisions.
Information on how to ensure the optimal
protective effect of the airbags▷Keep at a distance from the airbags.▷Always grasp the steering wheel on the
steering wheel rim, holding your hands at
the 3 o'clock and 9 o'clock positions, to
keep the danger of injury to your hands or
arms as low as possible if the airbag is trig‐
gered.▷There should be no people, animals, or ob‐
jects between an airbag and a person.▷Do not use the cover of the front airbag on
the front passenger side as a storage area.▷Keep the dashboard and window on the
front passenger side clear, i.e., do not
cover with adhesive labels or coverings,
and do not attach holders such as for navi‐
gation instruments and mobile phones.▷Make sure that the front passenger is sit‐
ting correctly, i.e., keeps his or her feet and
legs in the footwell; otherwise, leg injuries
can occur if the front airbag is triggered.▷Do not place slip covers, seat cushions or
other objects on the front passenger seat
that are not approved specifically for seats
with integrated side airbags.▷Do not hang pieces of clothing, such as
jackets, over the backrests.▷Make sure that occupants keep their heads
away from the side airbag and do not rest
against the head airbag; otherwise, injuries
can occur if the airbags are triggered.▷Do not remove the airbag restraint system.▷Do not remove the steering wheel.▷Do not apply adhesive materials to the air‐
bag cover panels, cover them or modify
them in any way.▷Never modify either the individual compo‐
nents or the wiring in the airbag system.
This also applies to steering wheel covers,
the dashboard, the seats, the roof pillars
and the sides of the headliner.◀
Even when all instructions are followed closely,
injury from contact with the airbags cannot be
ruled out in certain situations.
The ignition and inflation noise may lead to
short-term and, in most cases, temporary
hearing impairment in sensitive individuals.
In the case of a malfunction, deactivation
and after triggering of the airbags
Do not touch the individual components imme‐
diately after the system has been triggered;
otherwise, there is the danger of burns.
Only have the airbags checked, repaired or dis‐
mantled and the airbag generator scrapped by
your service center or a workshop that has the
necessary authorization for handling explo‐
sives.
Non-professional attempts to service the sys‐
tem could lead to failure in an emergency or
undesired triggering of the airbag, either of
which could result in injury.◀
Warnings and information on the airbags are
also found on the sun visors.
Functional readiness of the airbag
system
When the ignition is switch on, the
warning lamp in the instrument cluster
lights up briefly and thereby indicates
the operational readiness of the entire airbag
system and the belt tensioner.
Airbag system malfunctioning
▷Warning lamp does not come on when the
ignition is turned on.▷The warning lamp lights up continuously.Seite 93SafetyControls93
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NotePersonal responsibility
The system cannot possibly serve as a
substitute for the driver's personal judgment of
the traffic situation. The system may not al‐
ways detect critical situations reliably and in a
timely manner. Adapt speed to traffic situation
and drive alertly; otherwise, a risk to safety may
result.◀
Function
After the safety belt is buckled, the front belts
are automatically pretensioned once after the
vehicle is driven is away.
In critical driving situations, the following indi‐
vidual functions become active as needed:▷The front belts are automatically preten‐
sioned.▷Automatic closing of the windows.▷Automatic closing of the glass sunroof.▷For vehicles equipped with Comfort Seats:
automatic positioning of the backrest for
the front passenger seat.
After a critical driving situation without an acci‐
dent, the front belts are loosened again. All
other systems can be restored to the desired
setting.
If the belt tension does not loosen automati‐
cally, stop the vehicle and unbuckle the belt
using the red button in the buckle. Fasten the
belt before continuing on your trip.
PostCrash
In the event of an accident, the system can
bring the car to a halt automatically without in‐
tervention by the driver in certain situations.
This can reduce the risk of a further collision
and the consequences thereof.
Depressing the brake pedal can cause the ve‐
hicle to brake harder. This interrupts automatic
braking. Depressing the accelerator pedal also
interrupts automatic braking.
After coming to a halt, the brake is released
automatically. Secure the vehicle against roll‐
ing.Seite 116ControlsSafety116
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Climate controlVehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equip‐ment is also described that is not available in a
vehicle, e. g., because of the selected optional
equipment or country variant. This also applies
for safety-related functions and systems.
Automatic climate control
1Air distribution, left2Temperature, left3AUTO program, left4Air flow, AUTO intensity, left, residual heat5Remove ice and condensation6Maximum cooling7Display8Air volume, AUTO intensity, right9AUTO program, right10Temperature, right11Air distribution, right12Seat heating, right 4713Active seat ventilation, right 4814Automatic recirculated-air control/recircu‐
lated-air mode15Cooling function16Rear window defroster17SYNC program18Active seat ventilation, left 4819Seat heating, left 47Seite 152ControlsClimate control152
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Climate control functions in detail
Manual air distribution Press the button repeatedly to select
a program:▷Upper body region.▷Upper body region and footwell.▷Footwell.▷Windows and footwell.▷Windows, upper body region, and footwell.▷Windows: driver's side only.▷Windows and upper body region.
If the windows are fogged over, press the
AUTO button on the driver's side to utilize the
condensation sensor.
Temperature Turn the wheel to set the de‐sired temperature.
The automatic climate control achieves this
temperature as quickly as possible, if neces‐
sary with the maximum cooling or heating ca‐
pacity, and then keeps it constant.
Avoid rapidly switching between different tem‐
perature settings. Otherwise, the automatic cli‐
mate control will not have sufficient time to ad‐
just the set temperature.
AUTO program Press the button.
Air volume, air distribution, and tem‐
perature are controlled automatically.
Depending on the selected temperature, the
AUTO intensity, and outside influences, the air
is directed to the windshield, side windows, upper body, and into the footwell.
The cooling function, refer to page 154, is
switched on automatically with the AUTO pro‐
gram.
At the same time, a condensation sensor con‐
trols the program so as to prevent window
condensation as much as possible.
Intensity of the AUTO program
With the AUTO program switched on, auto‐
matic control of the air flow and air distribution
can be adjusted.
Press the left or right side of the but‐
ton: decrease or increase the inten‐
sity.
The selected intensity is shown on the display
of the automatic climate control.
Air flow, manual To be able to manually adjust the air flow,
switch off the AUTO program first.
Press the left or right side of the but‐
ton: decrease or increase air flow.
The selected air flow is shown on the display of
the automatic climate control.
The air flow of the automatic climate control
may be reduced automatically to save battery
power.
Defrosting windows and removing condensation
Press the button.
Ice and condensation are quickly re‐
moved from the windshield and the front side
windows.
The air volume can be adjusted when the pro‐
gram is active.
If the windows are fogged over, you can also
switch on the cooling function or press the
AUTO button to utilize the condensation sen‐
sor.Seite 153Climate controlControls153
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Maximum coolingPress the button.
The system is set to the lowest tem‐
perature, maximum air flow and air circulation
mode.
Air flows out of the vents for the upper body
region. The vents need to be open for this.
Air is cooled as quickly as possible:▷At an external temperature of approx.
32 ℉/0 ℃.▷When the engine is running.
The air volume can be adjusted when the pro‐
gram is active.
Automatic recirculated-air control/recirculated-air mode
You can respond to unpleasant odors or pollu‐
tants in the immediate environment by tempo‐
rarily suspending the supply of outside air. The
system then recirculates the air currently
within the vehicle.
Press the button repeatedly to select
an operating mode:
▷LEDs off: outside air flows in continuously.▷Left LED on, automatic recirculated-air
control: a sensor detects pollutants in the
outside air and controls the shutoff auto‐
matically.▷Right LED on, recirculated-air mode: the
supply of outside air into the vehicle is per‐
manently blocked.
If the windows are fogged over, switch off the
recirculated-air mode and press the AUTO
button on the driver's side to utilize the con‐
densation sensor. Make sure that air can flow
onto the windshield.
Continuous recirculated-air mode
The recirculated-air mode should not be
used for an extended period of time, as the air
quality inside the vehicle deteriorates stead‐
ily.◀
Cooling function
The passenger compartment can only be
cooled with the engine running.
Press the button.
The air is cooled and dehumidified
and – depending on the temperature setting –
warmed again.
Depending on the weather, the windshield may
fog up briefly when the engine is started.
The cooling function is switched on automati‐
cally with the AUTO program.
When using the automatic climate control,
condensation water, refer to page 176, devel‐
ops that exits underneath the vehicle.
Rear window defroster Press the button.
The rear window defroster switches
off automatically after a certain period of time.
SYNC program The current settings on the driver's
side for temperature, air flow, air distri‐
bution, and AUTO program are transferred to
the front passenger side and to the left and
right rear.
The program is switched off if the settings on
the front passenger side or in the rear are
changed.
Residual heat The heat stored in the engine is used to heat
the interior.
Functional requirement▷Up to 20 minutes after the engine has been
switched off.▷Warm engine.▷The battery is sufficiently charged.▷External temperature below 77 ℉/25 ℃.Seite 154ControlsClimate control154
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