Page 65 of 246

▷After approx. 8 minutes.▷When the vehicle is locked using the central
locking system.
▷Shortly before the battery is discharged
completely, so that the engine can still be
started.
The radio-ready state remains active if, for ex‐
ample, the ignition is automatically switched off
for the following reasons:
▷Opening or closing the driver's door.▷Unfastening of the driver's safety belt.▷When automatically switching from low
beams to parking lights.
If the engine is switched off and the ignition is
switched on, the system automatically switches
to the radio-ready state if the lights are turned
off or, if correspondingly equipped, the day‐
time running lights are activated.
Starting the engine
Information
DANGER
If the exhaust pipe is blocked or ventila‐
tion is insufficient, harmful exhaust gases can
enter into the vehicle. The exhaust gases con‐
tain carbon monoxide, an odorless and color‐
less but highly toxic gas. In enclosed areas, ex‐
haust gases can also accumulate outside of the
vehicle. There is danger to life. Keep the ex‐
haust pipe free and ensure sufficient ventila‐
tion.◀
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, for example with a wheel
chock.◀
CAUTION
In the case of repeated starting attempts
or repeated starting in quick succession, the
fuel is not burned or is inadequately burned.
The catalytic converter can overheat. There is
risk of property damage. Avoid repeated start‐
ing in quick succession.◀
Steptronic transmission
Starting the engine
1.Depress the brake pedal.2.Engage selector lever position P or N.3.Press the Start/Stop button.
The ignition is activated automatically for a cer‐
tain time and is stopped as soon as the engine
starts.
Manual transmission
Starting the engine
1.Depress the brake pedal.2.Press on the clutch pedal and shift to neu‐
tral.
3.Press the Start/Stop button.
The ignition is activated automatically for a cer‐
tain time and is stopped as soon as the engine
starts.
Engine stop
Information
WARNING
Unattended children or animals can move
the vehicle and endanger themselves and traf‐
fic, for example with the following actions:
Seite 65DrivingCONTROLS65
Online Edition for Part no. 01 40 2 964 571 - X/15
Page 66 of 246

▷Pressing the Start/Stop button.▷Releasing the parking brake.▷Opening and closing of doors or windows.▷Engaging selector lever position N.▷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.◀
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, for example with a wheel
chock.◀
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 221.
Steptronic transmission
Switching off the engine
1.Engage selector lever position P with the
vehicle stopped.
2.Press the Start/Stop button.
The engine is switched off.
The radio-ready state is switched on.
3.Set the parking brake.Manual transmission
Switching off the engine
1.With the vehicle at a standstill, press the
Start/Stop button.
The engine is switched off.
The radio-ready state is switched on.
2.Shift into first gear or reverse.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, for example, in traffic congestion or at
traffic lights. The ignition remains switched on.
The engine starts again automatically for driv‐
ing off.
Information
After every start of the engine using the Start/
Stop button, the Auto Start/Stop function is in
the last selected state, refer to page 68. When
the Auto Start/Stop function is active, it is avail‐
able when the vehicle is traveling faster than
about 3 mph, approx. 5 km/h.
Depending on the selected driving mode, refer
to page 119, the system is automatically acti‐
vated or deactivated.
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.
Steptronic transmission:
Seite 66CONTROLSDriving66
Online Edition for Part no. 01 40 2 964 571 - X/15
Page 67 of 246

▷The selector lever is in selector lever posi‐
tion D.
▷Brake pedal remains depressed while the
vehicle is stopped.
▷The driver's safety belt is buckled or the
driver's door is closed.
In order to be able to release the brake pedal,
engage lever in position P. The engine remains
off.
To continue driving depress the brake pedal.
When a gear is engaged, the engine starts au‐
tomatically.
The air flow from 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 met.
Functional limitations
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 car's interior 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
steering wheel is being turned.
▷After driving in reverse.▷Fogging of the windows when the auto‐
matic climate control is switched on.
▷The vehicle battery charge is very low.▷At higher elevations.▷The engine compartment lid is unlocked.▷The parking assistant is activated.▷Stop-and-go traffic.▷Selector lever in selector lever position R, N
or M/S.
Starting the engine
The engine starts automatically under the fol‐
lowing conditions:
▷Manual transmission:
The clutch pedal is pressed.
▷Steptronic transmission:
By releasing the brake 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 selec‐
tor lever position D to R, N or M/S.
Seite 67DrivingCONTROLS67
Online Edition for Part no. 01 40 2 964 571 - X/15
Page 68 of 246

▷Steptronic transmission: change from selec‐
tor lever position P to R, N, D or M/S.
▷The vehicle begins rolling.▷Fogging of the windows when the auto‐
matic climate control is switched on.
▷The vehicle battery charge is very low.▷Excessive cooling of the car's interior when
the heating is switched on.
▷Manual transmission: low brake vacuum
pressure; this can occur, for example, if the
brake pedal is depressed a number of times
in succession.
Switching the system on/off
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.
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.
Steptronic transmission:1.Engage selector lever position P.2.Press the Start/Stop button. The ignition is
switched off. The Auto Start/Stop function is
deactivated.
3.Set the parking brake.
Manual transmission:
1.Press the Start/Stop button. The ignition is
switched off. The Auto Start/Stop function is
deactivated.
2.Shift into first gear or reverse.3.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, as it is detected that no driver is present.
Malfunction
The Auto Start/Stop function no longer switches
off the engine automatically. A Check Control
message is displayed. It is possible to continue
driving. Have the system checked by a dealer’s
service center or another qualified service cen‐
ter or repair shop.
Parking brake
The concept
The parking brake is used to prevent the vehi‐
cle from rolling when it is parked.
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.
Seite 68CONTROLSDriving68
Online Edition for Part no. 01 40 2 964 571 - X/15
Page 69 of 246

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, for example with a wheel
chock.◀
WARNING
Unattended children or animals can move
the vehicle and endanger themselves and traf‐
fic, for example with the following actions:
▷Pressing the Start/Stop button.▷Releasing the parking brake.▷Opening and closing of doors or windows.▷Engaging selector lever position N.▷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.◀
Overview
Parking brake
Setting
Pull the switch.
The LED lights up.
The indicator lamp lights up red. The
parking brake is set.
Depending on the stopping situation, the park‐
ing brake is engaged automatically.
Steptronic transmission: In some parking situa‐
tions, the parking brake is automatically en‐
gaged, when selector lever position P is en‐
gaged. In these cases, the parking brake is
released automatically when you leave the se‐
lector lever position P.
While driving
Use as emergency brake while driving:
Pull the switch and hold it. The vehicle brakes
hard while the switch is being pulled.
The indicator lamp lights up red, a sig‐
nal sounds and the brake lights light up.
A Check Control message is displayed.
If the vehicle is slowed down to a speed of ap‐
prox. 2 mph/3 km/h the parking brake is set.
Releasing
WARNING
Unattended children or animals can move
the vehicle and endanger themselves and traf‐
fic, for example with the following actions:
▷Pressing the Start/Stop button.▷Releasing the parking brake.▷Opening and closing of doors or windows.▷Engaging selector lever position N.▷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.◀
With the ignition switched on:
Manual transmission: Press the switch
while the brake pedal is pressed.
Steptronic transmission: Press the switch while
the brake is pressed or selector lever position P
is set.
The LED and indicator lamp go out.
Seite 69DrivingCONTROLS69
Online Edition for Part no. 01 40 2 964 571 - X/15
Page 70 of 246

The parking brake is released.
Automatic release in cars with
Steptronic transmission
For automatic release, step on the accelerator
pedal.
The LED and indicator lamp go out.
The parking brake is automatically released
when you step on the accelerator:
▷Engine on.▷Drive mode engaged.▷Driver buckled in and doors closed.
Automatic release in cars with manual
transmission
Drive off as usual. The parking brake disen‐
gages when the clutch pedal is released.
The LED and indicator lamp go out.
Under the following conditions, the parking
brake is automatically released:
▷Engine on.▷Gear engaged.▷Driver buckled in and doors closed.▷Engine power is sufficient to drive off.
Malfunction
In the event of a failure or malfunction of the
parking brake, secure the vehicle against rolling
using a wheel chock, for example, when leav‐
ing it.
After a power failure
Putting the parking brake into
operation
1.Switch on the ignition.2. Press the switch while stepping on the
brake pedal or selector lever position P is
set.
It may take several seconds for the brake to be
put into operation. Any sounds associated with
this are normal.
The indicator lamp in the instrument
cluster goes out as soon as the parking
brake is ready for operation.
Turn signal, high beams,
headlight flasher
Turn signal
Using turn signals
Press the lever beyond the resistance point.
The turn signal lever returns into is starting po‐
sition after actuation.
To switch off manually, slightly tap the lever to
the resistance point.
Triple turn signal activation
Slightly tap lever.
The turn signal flashes three times.
The function can be activated or deactivated.
On the Control Display:
1. "Settings"2."Lighting"3."Triple turn signal"
Settings are stored for the profile currently
used.
Seite 70CONTROLSDriving70
Online Edition for Part no. 01 40 2 964 571 - X/15
Page 71 of 246

Signaling briefly
Press the lever to the resistance point and hold
it there for as long as you want the turn signal
to flash.
Malfunction
Unusually rapid flashing of the indicator lamp
indicates that a turn signal bulb has failed.
High beams, headlight flasher
▷High beams, arrow 1.▷Headlight flasher, arrow 2.
Washer/wiper system
Switching the wipers on/off and brief
wipe
General information
Do not use the wipers if the windshield is dry,
as this may damage the wiper blades or cause
them to become worn more quickly.
Information
WARNING
If the wipers start moving in the folded
away state, body parts can be jammed or dam‐
age may occur to parts of the vehicle. There is
risk of injuries or risk of property damage. Make
sure that the vehicle is switched off when the
wipers are in the folded away state and the
wipers are folded in when switching on.◀
CAUTION
If the wipers are frozen to the windshield,
the wiper blades can be torn off and the wiper
motor overheat on switching on. There is risk of
property damage. Defrost the windshield prior
to switching the wipers on.◀
Switching on
The lever automatically returns to its initial po‐
sition when released.
▷Normal wiper speed: tap up once.
The wipers switch to intermittent operation
when the vehicle is stationary.
▷Fast wiper speed: tap up twice or tap once
beyond the resistance point.
Wipers change to normal speed when vehi‐
cle comes to standstill.
Switching off and brief wipe
The lever automatically returns to its initial po‐
sition when released.
▷Single wipe: press down once.▷To switch off from normal wiper speed:
press down once.
Seite 71DrivingCONTROLS71
Online Edition for Part no. 01 40 2 964 571 - X/15
Page 72 of 246

▷To switch off from fast wiper speed: press
down twice.
Interval mode or rain sensor
The concept
Without the rain sensor, the frequency of the
wiper operation is preset.
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 mirror.
Activating/deactivating
Press button on the wiper lever.
Wiping is started. If the vehicle is equipped with
a rain sensor: LED in wiper lever lights up.
When wipers are frozen to windshield, wiper
operation is deactivated.
CAUTION
If the rain sensor is activated, the wipers
can accidentally start moving in car washes.
There is risk of property damage. Deactivate
the rain sensor in car washes.◀
Setting the frequency or sensitivity of
the rain sensor
Turn the thumbwheel to adjust the frequency
or sensitivity of the rain sensor.
Up: short interval or high sensitivity of the rain
sensor.
Down: long interval or low sensitivity of the rain
sensor.
Washing the windshield
Pull the wiper lever towards you.
The system sprays washer fluid on the wind‐
shield and activates the wipers briefly.
WARNING
The washer fluid can freeze onto the win‐
dow at low temperatures and obstruct the
view. There is risk of an accident. Only use the
washer systems, if the washer fluid cannot
freeze. Use antifreeze if needed.◀
CAUTION
When the wiper water container is empty,
the wash pump cannot work as intended.
There is risk of property damage. Do not use
Seite 72CONTROLSDriving72
Online Edition for Part no. 01 40 2 964 571 - X/15