▷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.▷Excessive cooling of the car's interior when
the heating is switched on.▷If window condensation is imminent.▷The steering wheel is turned.▷Change from selector lever position D to N
or R.▷Change from selector lever position P to N,
D or R.▷Vehicle battery is heavily discharged.▷Start of an oil level measurement.Activating/deactivating the system
manually
Using the button
Press button.
▷LED comes on: Auto Start/Stop function is
deactivated.
The engine is not automatically switched
off.
The engine is started during an automatic
engine stop.
The Auto Start/Stop function is deacti‐
vated in selector lever position M/S or in
SPORT drive mode.▷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.▷Drive readiness is switched off.▷Operating readiness is switched on.▷Selector lever position P is engaged
automatically.2.Set the parking brake.Seite 99DrivingControls99
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Automatic deactivation
In certain situations, Auto Start/Stop function
is deactivated automatically for safety reasons
as if the driver were absent.
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.
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.
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.◀
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.◀
Overview
Parking brake
Setting Pull the switch.
LED on the switch lights up.
The indicator lamp in the instrument
cluster lights up red. The parking brake
is set.
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
With drive readiness switched on:
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Overview
Automatic Hold
Establishing function readiness from
Automatic Hold
Press the button while pressing on the
brake pedal.
The LED on the button lights up.
The indicator lamp lights up green.
Automatic Hold is functional.
After every new vehicles start, the last
selected setting is active.
Automatic Hold holding the vehicle Function readiness is established.
After stepping on the brake pedal, e.g. when
stopping at a traffic light, the vehicle is auto‐
matically secured against rolling.
The indicator lamp lights up green.
Step on the accelerator pedal to drive
off.
The brake is released automatically.
The indicator lamp goes out.
Parking
The parking brake is engaged automatically if
the vehicle is stopped with Automatic Hold and
the drive-ready state is deactivated.
The indicator lamp changes from green
to red.
The parking brake is not set if the drive-ready
state is deactivated while the vehicle is coast‐
ing to a halt. Automatic Hold is deactivated.
Automatic Hold remains active during the en‐
gine stop brought about by the Auto Start/
Stop function.
Switching function readiness off Press button.
The LED on the button goes out.
The indicator lamp goes out.
Automatic Hold is switched off.
If the vehicle is being held by Automatic Hold,
press on the brake pedal to switch it off.
Malfunction
In the event of a failure or malfunction of the
parking brake, secure the vehicle against roll‐
ing using a wheel chock, e.g., when leaving it.
After a power failure
Putting the parking brake into
operation1.Turn on operations.2. Pull the switch while stepping on the
brake pedal or selector lever position P is
set and then push.
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.
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General information
The use of Launch Control causes premature
component wear since this function represents
a very heavy load for the vehicle.
Do not use Launch Control during the break-in,
refer to page 234, period.
To increase vehicle stability, activate DSC again as soon as possible.
An experienced driver may be able to achieve
better acceleration values in DSC OFF mode.
Requirements
Launch 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 controlWhile the engine is running:1. Press button.
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, allow the trans‐
mission to cool down for approx. 5 minutes.
Launch Control adjusts to the surrounding
conditions, e.g., wet pavement, when used
again.
Driving Dynamics Control
The conceptThe Driving Dynamics Control influences the
driving dynamics properties of the vehicle. The
vehicle can be adjusted depending on the sit‐
uation using various driving modes.
The following systems are affected:▷Engine characteristics.▷Steptronic transmission.▷Dynamic Damping Control.▷Air suspension▷Active roll stabilization.▷Integral Active Steering.▷Display in the instrument cluster.▷Cruise control.▷Backrest width for comfort seats.
Overview
Controls
Drive modes
Press but‐
tonDrive modeConfigurationSPORTINDIVIDUALCOMFORTPLUSECO PROINDIVIDUALADAPTIVESeite 110ControlsDriving110
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Red lightsSafety belt reminder Flashing or illuminated: safety belt on
the driver or passenger side is not
buckled. The safety belt reminder can
also be activated if objects are placed on the
front passenger seat.
Make sure that the safety belts are positioned
correctly.
Airbag system Airbag system and belt tensioner are
not working.
Have the vehicle checked immediately
by a dealer’s service center or another quali‐
fied service center or repair shop.
Parking brake The parking brake is set.
For additional information, refer to Re‐
lease parking brake, refer to page 100.
Brake system Braking system disrupted. Continue to
drive moderately.
Have the vehicle checked immediately
by a dealer’s service center or another
qualified service center or repair shop.
Yellow lights
Anti-lock Braking System ABS Avoid sudden braking as much as pos‐
sible. Braking force boost may not be
working. Stop cautiously. Take into ac‐
count the longer brake distance. Have
checked immediately by a dealer’s
service 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 system checked
immediately 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 163.
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 163, and
Dynamic Traction Control DTC, refer to
page 164.
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 268.
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.Seite 115DisplaysControls115
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WARNING
Due to system limits, individual functions
can malfunction during tow-starting/towing
with the Intelligent Safety systems activated,
e.g. approach control warning with light brak‐
ing function. There is risk of an accident.
Switch all Intelligent Safety systems off prior to
tow-starting/towing.◀
Overview
Button in the vehicle
Intelligent Safety
Switching on/off Some Intelligent Safety systems are automati‐
cally active after every departure. Some Intelli‐
gent Safety systems activate according to the
last setting.
Press
buttonStatusButton lights up green: all Intelli‐
gent Safety systems are
switched on.Button lights up orange: some In‐
telligent Safety systems are
switched off or settings for the
sub-functions were changed.Button does not light up: all Intel‐
ligent Safety systems are
switched off.Press button:
The menu for the intelligent safety
system is displayed.
If all Intelligent Safety systems were switched
off, all systems are now switched on.
"Configure INDIVIDUAL": depending on the
equipment version, the Intelligent Safety sys‐
tems can be individually configured. The indi‐
vidual settings are activated and stored for the
profile currently used. As soon as a setting is
changed on the menu, all settings of the menu
are activated, the button lights up orange.
Press button repeatedly. It is switched
between the following settings:
"ALL ON" All Intelligent Safety systems are
switched on. For the sub-functions, e.g. set‐
ting for warning time, basic settings are acti‐
vated.
"INDIVIDUAL": the Intelligent Safety systems
are switched on according to the individual
settings.
Some Intelligent Safety systems cannot be in‐
dividually switched off.
Press and hold this button:
All Intelligent Safety systems are
turned off.
Collision warning with
braking function
The concept The system can help prevent accidents. If an
accident cannot be prevented, the system will
help reduce the collision speed.
The system sounds a warning before an immi‐
nent collision and actuates brakes independ‐
ently if needed.
The system is controlled using a camera.
If the vehicle is equipped with Active Cruise
Control with Stop & Go function, ACC, theSeite 140ControlsSafety140
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SymbolMeasureSymbol lights up red: prewarning.
Brake and increase distance.Symbol flashes red and an acoustic
signal sounds: acute warning.
You are requested to intervene by
braking or make an evasive maneu‐
ver.
Prewarning
This warning is issued, e.g., when there is the
impending danger of a collision or the distance
to the vehicle ahead is too small.
The driver must intervene actively when there
is a prewarning.
Acute warning with braking function
Acute warning in displayed in case of the immi‐
nent danger of a collision when the vehicle ap‐
proaches another object at a relatively high dif‐
ferential speed.
The driver must intervene actively when there
is an acute warning. If necessary, the driver is
assisted by an automatic braking intervention
in a possible risk of collision.
Acute warnings can also be triggered without
previous forewarning.
Brake intervention, City braking
function
The warning prompts the driver himself/herself
to react. During a warning, the maximum brak‐
ing force is used when the brake is actuated.
Premise is sufficiently quick and hard stepping
on the brake pedal.
The system can additionally assist possibly
with automatic braking intervention if there is
risk of a collision.
At low speeds the vehicle can be decelerated
to a complete stop.
The braking intervention takes place up to ap‐
prox. 50 mph/80 km/h.
The braking intervention is executed only if
DSC Dynamic Stability Control is switched on.
The braking intervention can be interrupted by
stepping on the accelerator pedal or by ac‐
tively moving the steering wheel.
Object detection can be restricted. Limitations
of the detection range and functional restric‐
tions are to be considered.
With radar sensor and Active CruiseControl: braking intervention
The warning prompts the driver himself/herself
to react. During a warning, the maximum brak‐
ing force is used when the brake is actuated.
Premise is sufficiently quick and hard stepping
on the brake pedal.
The system can assist with automatic braking
intervention if there is risk of a collision.
The intervention can bring the vehicle to a
complete stop.
The braking intervention is executed only if
DSC Dynamic Stability Control is switched on.
Above approx. 130 mph/210 km/h the braking
intervention occurs as a brief braking pressure.
No automatic delay occurs.
The braking intervention can be interrupted by
stepping on the accelerator pedal or by ac‐
tively moving the steering wheel.
Object detection can be restricted. Limitations
of the detection range and functional restric‐
tions are to be considered.
System limits
Detection range
The system's detection potential is limited.
Thus a system reaction might not come or
might come late.
E. g. the following situations may not be de‐
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Some Intelligent Safety systems cannot be in‐
dividually switched off.
Press and hold this button:
All Intelligent Safety systems are
turned off.Press
buttonStatusButton lights up green: all Intelli‐
gent Safety systems are
switched on.Button lights up orange: some In‐
telligent Safety systems are
switched off or settings for the
sub-functions were changed.Button does not light up: all Intel‐
ligent Safety systems are
switched off.
Warning with braking function
Display
If a collision with a person detected in this way
is imminent, a warning symbol appears on the
instrument cluster and in the Head-up Display.
The red symbol is displayed and a sig‐
nal sounds.
Intervene immediately by braking or make an
evasive maneuver.
Braking intervention
The warning prompts the driver himself/herself
to react. During a warning, the maximum brak‐
ing force is used when the brake is actuated.
Premise for the brake booster is sufficiently
quick and hard stepping on the brake pedal.
The system can additionally assist with braking
intervention if there is risk of a collision.
At low speeds the vehicle can be decelerated
to a complete stop.
The braking intervention is executed only if
DSC Dynamic Stability Control is switched on.
The braking intervention can be interrupted by
stepping on the accelerator pedal or by ac‐
tively moving the steering wheel.
Object detection can be restricted. Limitations
of the detection range and functional restric‐
tions are to be considered.
System limits
Detection range
The detection potential of the camera is lim‐
ited.
Thus a warning might not be issued or be is‐
sued late.
E. g. the following situations may not be de‐
tected:▷Partially covered pedestrians.▷Pedestrians that are not detected as such
because of the viewing angle or contour.▷Pedestrians outside of the detection range.▷Pedestrians having a body size less than
32 in/80 cm.
Functional limitations
The system may not be fully functional or may
not be available in the following situations:
▷In heavy fog, rain, sprayed water or snow‐
fall.▷In tight curves.▷If the driving stability control systems are
deactivated, e.g. DSC OFF.▷If the field of view of the camera or the front
windshield are dirty or covered.▷Up to 10 seconds after the start of the en‐
gine, via the Start/Stop button.▷During calibration of the camera immedi‐
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