InformationCAUTION
The mounting points for the upper re‐
taining straps of child restraint systems are
only provided for these retaining straps. When
other objects are mounted, the anchors can be
damaged. There is risk of property damage.
Only mount child restraint systems to the up‐
per retaining straps.◀
Retaining strap guide WARNING
If the upper retaining strap is incorrectly
used for the child restraint system, the protec‐
tive effect can be reduced. There is risk of inju‐
ries. Make sure that the upper retaining strap is
not guided across sharp edges and without
twisting to the upper retaining strap.◀1Direction of travel2Head restraint3Hook for upper retaining strap4Mounting point5Rear window shelf6Seat backrest7Upper retaining strap
Attaching the upper retaining strap to
the mounting point
1.Remove the mounting point cover.2.Raise the head restraint.3.Guide the upper retaining strap between
the supports of the head restraint.Guide it over the head restraint of the mid‐
dle seat.4.Attach the hook of the retaining strap to
the anchor.5.Tighten the retaining strap by pulling it
down.6.Lower and lock head restraints as needed.
Locking the doors and
windows in the rear
Doors
Push the locking lever on the rear doors up.
The door can now be opened from the outside
only.
Safety switch for the rear Press button on the driver's door if
children are being transported in the
rear.
This locks various functions so that they can‐
not be operated from the rear: safety switch,
refer to page 71.
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DrivingVehicle features and options
This 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.
Start/Stop button The concept Pressing the Start/Stop button
switches drive readiness on or
off.
Drive readiness starts with the
brake pedal pressed when you
press the Start/Stop button.
Pressing the Start/Stop button again switches
drive readiness back off and operating readi‐
ness, refer to page 19, is switched back on.
Drive readiness
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
exhaust 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, e.g. 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.◀
Switching on drive readiness
Steptronic transmission
1.Depress the brake pedal.2.Press the Start/Stop button.
The ignition is activated automatically for a
certain time and is stopped as soon as the en‐
gine starts.
Most of the indicator and warning lights in the
instrument cluster light up for a varied length
of time.
Switch off drive readiness
Steptronic transmission
1.Engage selector lever position P with the
vehicle stopped.2.Press the Start/Stop button.
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3.Set the parking brake.
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 291.
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 traffic congestion or at traffic lights. Drive readiness remains switched on.
The engine starts again automatically for driv‐
ing off.
Information After every engine start via the Start/Stop but‐
ton, the Auto Start/Stop function is activated or
deactivated, according to the last setting, refer
to page 99. If the Auto Start/Stop function is
active, it is available as soon as a speed of ap‐
prox. 3 mph, approx. 5 km/h is exceeded.
Engine stop
The engine is switched off automatically dur‐
ing a stop under the following conditions:
▷The selector lever is in selector lever posi‐
tion 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 from the air conditioner is reduced
when the engine is switched off.
Displays in the instrument cluster
The display in the tachometer
indicates that the Auto Start/
Stop function is ready for an Au‐
tomatic 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:▷In case of a steep downhill grade.▷Brake not engaged strongly enough.▷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.▷If window condensation is imminent.▷Engine or other parts not at operating tem‐
perature.▷Engine cooling is required.▷The wheels are at a sharp angle or the
steering wheel is being turned.▷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 position in N or R.▷After driving in reverse.▷Use of fuel with high ethanol content.
Starting the engine
The engine starts automatically under the fol‐
lowing conditions:
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▷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
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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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Press the switch while stepping on the
brake pedal or selector lever position P is
set.
The LED and indicator lamp go out.
The parking brake is released.
Automatic release
The parking brake is released automatically
when you drive away.
The LED and indicator lamp go out.
Automatic Hold
The concept
This system assists the driver by automatically
setting and releasing the brake, such as when
moving in stop-and-go traffic.
The vehicle is automatically held in place when
it is stationary.
On inclines, the system prevents the vehicle
from rolling backward when driving off.
General information
Under the following conditions, the parking
brake is automatically engaged:▷Drive readiness is deactivated.▷The driver's door is opened while the vehi‐
cle is stationary.▷The moving vehicle is brought to a stand‐
still using the parking brake.
The indicator lamp changes from green
to red.
The indicator lamp goes out.
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.◀
CAUTION
If the vehicle is stationary, Automatic
Hold engages the parking brake. It prevents
the vehicle from rolling in a car wash. There is
risk of property damage. Deactivate Automatic
Hold prior to entering the car wash.◀
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.◀
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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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Turn signal, high beams,
headlight flasher
Turn signal
Turn signal in exterior mirror
When driving and during operation of the turn
signals or hazard warning system, do not fold
in the exterior mirrors, so that the signal lights on the exterior mirror are easy to see.
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 triple turn signal duration can be adjusted.
About iDrive:
1."My Vehicle"2."Vehicle settings"3."Lighting"4."Exterior lighting"5."One-touch turn signal"6.Select desired setting.
The setting is stored for the drive profile cur‐
rently used.
Signaling briefly
Press the lever to the resistance point and hold
it there for as long as you want the turn signal
to flash.
High beams, headlight flasher▷High beams, arrow 1.▷High beams off/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 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.◀
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