
3.Set the parking brake.
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 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 after
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 during
a stop under the following conditions:
Manual transmission:
▷Neutral is engaged and the clutch pedal is
not pressed.▷The driver's safety belt is buckled or the
driver's door is closed.
Automatic transmission:
▷The selector lever is in transmission position
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 of the air conditioner is reduced
when the engine is switched off.
Displays in the instrument cluster
The display indicates that the
Auto Start/Stop function is ready
for an automatic engine start.
The display indicates that the
conditions for an automatic en‐
gine stop have not been satisfied.
Note
The engine is not switched off automatically in
the following situations:▷External temperature below approx.
+37 ℉/+3 ℃.▷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 tempera‐
ture.▷The wheels are at a sharp angle or the steer‐
ing wheel is being turned.▷After driving in reverse.▷Fogging of the windows when the automatic
climate control is switched on.▷The vehicle battery charge is very low.▷The engine compartment lid is unlocked.▷HDC is activated.▷Stop-and-go traffic.▷The transmission selector lever is in position
N or S/M.
Starting the engine
The engine starts automatically under the fol‐
lowing conditions:
▷Automatic transmission:
By releasing the brake pedal.Seite 61DrivingControls61
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When Automatic Hold is activated: press the
accelerator.
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 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 automatic
climate control is switched on.▷The vehicle battery charge is very low.▷Excessive cooling of the passenger com‐
partment when the heating is switched on.
Preventing an automatic engine stop
with automatic transmission
The concept
To make it possible to drive away very quickly,
such as at an intersection, the automatic engine
stop can be actively prevented.
Preventing an engine stop using the
brake pedal
The engine stop can be actively prevented
within one second after the vehicle comes to a
standstill.▷Immediately after the vehicle comes to a
standstill, briefly press the brake pedal
forcefully.▷Then press the brake pedal with normal
braking force.
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.Seite 62ControlsDriving62
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Automatic transmission: the transmission
position P is engaged automatically.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.
Malfunction
The Auto Start/Stop function no longer
switches of the engine automatically. A Check
Control message is displayed. It is possible to
continue driving. Have the system checked.
Parking brake
The concept
The parking brake is used to prevent the vehicle
from rolling when it is parked.
Setting
Pull the switch.
The LED lights up.
The indicator lamp lights up red. The
parking brake is set.
Lower lamp: indicator lamp in Canadian
models
Set the parking brake and further secure
the vehicle as required
Set the parking brake firmly when parking; oth‐
erwise, the vehicle could roll. On steep upward
and downward inclines, further secure the vehi‐
cle, for example, by turning the steering wheel in
the direction of the curb. ◀
While driving
Use while driving serves as an emergency brak‐
ing function:
Pull the switch and hold it. The vehicle brakes
hard while the button is being pulled.
The indicator lamp lights up red, a signal
sounds and the brake lamps light up.
Lower lamp: indicator lamp in Canadian
models.
If the vehicle is braked to a speed of approx.
2 mph/3 km/h, the parking brake remains set.
Releasing
With the ignition switched on:
Automatic transmission: Press the switch
while the brake is pressed or transmission
position P is engaged.
The LED and indicator lamp go out.
The parking brake is released.
Automatic Release in cars with
automatic transmission
For automatic release, operate the accelerator
pedal.
The LED and indicator lamp go out.
Subject to the following requirements, the park‐
ing brake is automatically released by operation
of the accelerator pedal:▷Engine on.▷Drive position engaged.▷Driver buckled in and doors closed.Seite 63DrivingControls63
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Intermittent operation or rain sensor
The concept
The rain sensor automatically controls the time
between wipes depending on the intensity of
the rainfall. The sensor is located on the wind‐
shield, directly behind the interior rearview mir‐
ror.
Activating/deactivating
Press the button on the wiper lever.
The LED in the steering column stalk lights up.
Deactivate the rain sensor in car washes
Deactivate the rain sensor when passing
through an automatic car wash; otherwise, dam‐
age could be caused by undesired wiper activa‐
tion.◀
Setting the frequency or sensitivity of
the rain sensor
Turn the thumbwheel.
Clean the windshield, headlamps
Pull the lever.
The system sprays washer fluid on the wind‐
shield and activates the wipers briefly.
In addition, the headlamps are cleaned at regular
intervals when the vehicle lights are switched
on.
Do not use the washer system at freezing
temperatures
Do not use the washers if there is any danger
that the fluid will freeze on the windshield; oth‐
erwise, your vision could be obscured. For this
reason, use antifreeze.
Avoid using the washer when the reservoir is
empty; otherwise, you could damage the
pump.◀
Windshield washer nozzles
The windshield washer nozzles are automati‐
cally heated while the ignition is switched on.
Switching on the rear window wiper
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Press the lever forward: intermittent wipe. When
reverse gear is engaged, the system switches to
continuous operation.
To clean the rear window, press the lever further
forward.
Fold-out position of the wipers
Required when changing the wiper blades or
under frosty conditions, for example.1.Switch off the ignition.2.Under frosty conditions, ensure that the
wiper blades are not frozen onto the wind‐
shield.3.Press the wiper lever up beyond the point of
resistance and hold it for approx. 3 seconds,
until the wiper remains in a nearly vertical
position.
After the wipers are folded back down, the wiper
system must be reactivated.
Fold the wipers back down
Before switching the ignition on, fold the
wipers back down to the windshield; otherwise,
the wipers may become damaged when they are
switched on.◀
1.Switch on the ignition.2.Press the wiper levers down. The wipers
move to their resting position and are ready
for operation.
Washer fluid
General information Antifreeze for washer fluid
Antifreeze is flammable. Therefore, keep
it away from sources of ignition.
Only keep it in the closed original container and
inaccessible to children.
Follow the instructions on the container.◀
Washer fluid reservoir
Adding washer fluid
Only add washer fluid when the engine is
cool, and then close the cover completely to
avoid contact between the washer fluid and hot
engine parts.
Otherwise, there is the danger of fire and a risk
to personal safety if the fluid is spilled.◀
All washer nozzles are supplied from one reser‐
voir.
Fill with water and – if required – with a washer
antifreeze, according to the manufacturer's rec‐
ommendations.
Mix the washer fluid before adding to maintain
the correct mixing ratio.
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 Neutral
Use in automatic car washes, for example. The
vehicle can roll.
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When the ignition is switched off, refer to
page 59, 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 59, 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 engaged.
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 driv‐
ing
To prevent the vehicle from creeping after
you select a driving position, maintain pres‐
sure on the brake pedal until you are ready
to start.◀Engaging D, R and N
Briefly push the selector lever in the desired di‐
rection, beyond a resistance point if necessary.
After releasing the selector lever, it returns to its
center position.
Press unlock button, in order to:
▷Engage R.▷Shift out of P.
Engaging P
Press button P.
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With the Business navigation system or no navigation1Clock 77
External temperature 772Messages, e.g. Check Control 743Transmission displays 714Selection lists, e. g. Dynamic Driving Con‐
trol 815Computer 816Service requirements 78Check Control
The concept
The Check Control system monitors functions
in the vehicle and notifies you of malfunctions in
the monitored systems.
A Check Control message is displayed as a
combination of indicator or warning lamps and
text messages in the instrument cluster and in
the Head-up Display.
In addition, an acoustic signal may be output and
a text message may appear on the Control Dis‐
play.Indicator/warning lamps
The indicator and warning lamps can light up in
a variety of combinations and colors.
Several of the lamps are checked for proper
functioning and light up temporarily when the
engine is started or the ignition is switched on.
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▷ Display additional information about the
Check Control message in the integrated
owner's manual.▷ "Service request"
Contact the service partner.▷ "Roadside Assistance"
Contact Roadside Assistance.
Hiding Check Control messages
Press the computer button on the turn signal
lever.
▷Some Check Control messages are dis‐
played continuously and are not cleared un‐
til the malfunction is eliminated. If several
malfunctions occur at once, the messages
are displayed consecutively.
These messages can be hidden for approx.
8 seconds. After this time, they are dis‐
played again automatically.▷Other Check Control messages are hidden
automatically after approx. 20 seconds.
They are stored and can be displayed again
later.
Displaying stored Check Control
messages
1."Vehicle Info"2."Vehicle status"3. "Check Control"4.Select the text message.Messages after trip completion
Special messages that are displayed during
driving are displayed again after the ignition is
switched off.
Fuel gauge The vehicle inclination may
cause the display to vary.
Notes on refueling, refer to
page 152.
Tachometer
Always avoid engine speeds in the red warning
field. In this range, the fuel supply is interrupted
to protect the engine.
Engine oil temperature▷Cold engine: the pointer is at
the low temperature end.
Drive at moderate engine and
vehicle speeds.▷Normal operating tempera‐
ture: the pointer is in the mid‐
dle or in the left half of the
temperature display.▷Hot engine: the pointer is at the high tem‐
perature end. A Check Control message is
displayed in addition.
Coolant temperature
If the coolant along with the engine becomes too
hot, a Check Control message is displayed.
Check the coolant level, refer to page 167.
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