923-1. CONTROLS
3"Doors/Key"
4 "Turn off after door opening"
Opening the front doors establishes
the idle state, refer to page 43.
When the vehicle is locked, the
vehicle alarm system reacts to
the following changes:
• Opening a door, the hood or
the trunk lid.
• Movements in the car's inte- rior.
• Changes in the vehicle tilt, e. g., during attempts at stealing
a wheel or when towing the
vehicle.
• Disconnected battery voltage.
• Improper use of the socket for OBD Onboard Diagnosis.
• Locking the vehicle while a device is connected to the
socket for the OBD Onboard-
Diagnosis. For socket for the
OBD Onboard Diagnosis,
refer to page 302.
The alarm system signals the
following changes visually and
acoustically:
• Acoustic alarm: Depending on local regulations, the acoustic
alarm may be suppressed.
• Visual alarm: By flashing of the hazard warning system
and headlights, where
required. Do not modify the system to
ensure function of the alarm
system.
When you unlock and lock the
vehicle, either with the remote
control or with Comfort entry, the
alarm system is switched off and
on at the same time.
The alarm system is triggered
when a door is opened if the
door was unlocked using the
integrated key in the door lock.
Switching off the alarm, refer to
page 94.
The trunk lid can be opened
even when the alarm system is
switched on.
After the trunk lid is closed, it is
locked and monitored again pro-
vided the doors are locked. The
hazard warning system flashes
once.
You can trigger the alarm sys-
tem if you find yourself in a dan-
Alarm system
General information
Switching on/off
Opening the doors with
the alarm system switched
on
Opening the trunk lid with
the alarm system switched
on
Panic mode
933-1. CONTROLS
3
CONTROLS
gerous situation.
To switch off the alarm: press
any button.
• The indicator light flashes briefly every 2 seconds: The
alarm system is switched on.
• Indicator light flashes for approx. 10 seconds, then it
flashes briefly every 2 sec-
onds: Interior motion sensor
and tilt alarm sensor are not
active, as doors, hood, or
trunk lid are not correctly
closed. Correctly closed
access points are secured.
When the still open access points
are closed, interior motion sensor
and tilt alarm sensor will be
switched on.
• The indicator light goes out
after unlocking: The vehicle has not been tampered with.
• The indicator light flashes after unlocking until
drive-ready state is switched
on, but no longer than approx.
5 minutes: An alarm has been
triggered.
The tilt of the vehicle is moni-
tored.
The alarm system responds in
situations such as attempts to
steal a wheel or when the vehi-
cle is towed.
The car's interior is monitored to
the height of the seats. The
alarm system is switched on
together with the interior motion
sensor even when the window is
open. Falling objects such as
leaves can trigger the alarm
unintentionally.
The tilt alarm sensor and interior
motion sensor can trigger an
alarm, although no unauthorized
action occurred.
Possible situations for an
unwanted alarm:
• In automatic vehicle washes.
• Press the button on the remote control and hold
for at least 3 seconds.
• Briefly press the button on the remote control
three times in succes-
sion.
Indicator light on the inte-
rior mirror
Tilt alarm sensor
Interior motion sensor
Avoiding unintentional
alarms
General information
963-1. CONTROLS
This chapter describes all stan-
dard, country-specific and
optional features offered with
the series. It also describes fea-
tures and functions that are not
necessarily available in your
vehicle, e.g., due to the selected
options or country versions. This
also applies to safety-related
functions and systems. When
using these functions and sys-
tems, the applicable laws and
regulations must be observed.
An ideal seating position that
meets the needs of the occu-
pants can make a vital contribu-
tion to relaxed, fatigue-free
driving.
In the event of an accident, the
correct seating position plays an
important role. Follow the infor-
mation in the following chapters:
• Seats, refer to page 96.
• Safety belts, refer to page 100.
• Head restraints, refer to page 104.
• Airbags, refer to page 160.
Seats, mirrors, and
steering wheel
Vehicle features and
options
Sitting safely
Seats
Safety information
WARNING
Seat adjustments while driving
can lead to unexpected move-
ments of the seat. Vehicle control
could be lost. There is a risk of an
accident. Only adjust the seat on
the driver's side when the vehicle
is stationary.
WARNING
With a backrest inclined too far to
the rear, the efficacy of the safety
belt can no longer be ensured.
There is a risk of sliding under the
safety belt in an accident. There is
a risk of injuries or danger to life.
Adjust the seat prior to starting the
trip. Adjust the backrest so that it
is in the most upright position as
possible and do not adjust again
while driving.
WARNING
There is a risk of jamming when
moving the seats. There is a risk
of injury or risk of damage to prop-
erty. Make sure that the area of
movement of the seat is clear
prior to any adjustment.
1023-1. CONTROLS
Position the head restraint so that the center of it is at the same
height as the top of your ears
Make sure that the seat belt is not twisted
Adjust the seat so that your arms bend slightly at the elbow when
gripping the upper part of the steering wheel
Make sure that the seat belt is snug and not loose at any point
Position the lap belt as low as possible over the hips
Sit well back in the seat with the seatback upright
Sit so your entire back is in contact with the seatback
Position the shoulder belt so that it does not contact your neck or
slide off your shoulder Correct driving posture and use of the seat beltsA
B
C
D
E
F
G
H
WARNING
Do not recline the seatback
excessively while driving.
1073-1. CONTROLS
3
CONTROLS
automatically.
Photocells are used for control:
• In the mirror glass.
• On the back of the mirror.
• Keep the photocells clean.
• Do not cover the area between the interior mirror
and the windshield. 1
Fold the lever down.
2 Move the steering wheel to
the preferred height and
angle to suit your seating
position.
3 Fold the lever back up.
The following settings can be
stored and, if necessary,
retrieved using the memory
function:
• Seat position.
• Exterior mirror position.
• Height of the Head-up Dis- p l a y.
Two memory locations with dif-
ferent settings can be set for
each driver profile, refer to page
65.
The following settings are not
stored:
Overview
Functional requirements
Steering wheel
Safety information
WARNING
Steering wheel adjustments while
driving can lead to unexpected
steering wheel movements. Vehi-
cle control could be lost. There is
a risk of an accident. Adjust the
steering wheel while the vehicle is
stationary only.
Manual steering wheel
adjustment
Memory function
Concept
General information
1173-1. CONTROLS
3
CONTROLS
■General information
The engine is not switched off
automatically in the following sit-
uations:
In case of a steep downhill
grade.
Brake not engaged strongly
enough.
The external temperature is
high and automatic air condi-
tioning is running.
The car's interior has not yet
been heated or cooled to the
required level.
Where there is a risk of win-
dow condensation when the
automatic air conditioning is
switched on.
Engine or other parts not at
operating temperature.
Engine cooling is required.
The wheels are at a sharp angle or the steering wheel is
being turned.
Vehicle battery is heavily dis-
charged.
At higher elevations.
The hood is unlocked.
The parking assistant is acti-
vated.
Stop-and-go traffic.
Selector lever position in N or
R.
After driving in reverse.
Use of fuel with high ethanol
content.
The engine starts automatically
under the following precondi-
tions:
By releasing the brake pedal.
After the engine starts, acceler-
ate as usual.
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
Displays in the instrument
cluster
The display in the
instrument cluster indi-
cates that the Auto
Start/Stop function is
ready for automatically
starting the engine.
The display indicates
that the conditions for
an automatic engine
stop have not been
met.
Functional limitations
Starting the engine
Functional requirements
Driving off
Safety mode
1183-1. CONTROLS
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.
Even if driving off was not
intended, the deactivated
engine starts up automatically in
the following situations:
Excessive warming of the
car's interior when the air con-
ditioning is switched on.
Excessive cooling of the car's
interior when the heating is
switched on.
Where there is a risk of win-
dow condensation when the
automatic air conditioning is
switched on.
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 dis-
charged.
Start of an oil level measure-
ment.
Depending on the vehicle equip- ment and country-specific ver-
sion, the vehicle features a
variety of sensors for assessing
the traffic situation. The Auto
Start/Stop function uses this
information to adapt to various
traffic situations in a proactive
manner.
For instance, this applies to the
following situations:
If a situation is detected in
which the stopping time is
expected to be very short, the
engine is not switched off
automatically. A message
appears on the Control Dis-
play, depending on the situa-
tion.
If a situation is detected in
which the vehicle needs to
drive off immediately, the
engine is started automati-
cally.
The function may be restricted if
the navigation data is invalid,
outdated or not available, for
example.
The engine is not automatically
switched off.
The engine is started during an
automatic engine stop.
System limits
Additional functions Auto
Start/Stop
Activating/deactivating the
system manually
Concept
1203-1. CONTROLS
■General information
To use as emergency brake
while driving:
Pull the switch and hold it. The
vehicle brakes hard while the
switch is being pulled.
A vehicle message is displayed.
If the vehicle is slowed down to
Safety information
WARNING
An unsecured vehicle can begin
to move and possibly roll away.
There is a risk of an accident.
Before exiting, secure the vehicle
against rolling.
In order to ensure that the vehicle
is secured against rolling away,
follow the following:
●Set the parking brake.
●On uphill grades or on a down-
hill slope, turn the front wheels
in the direction of the curb.
●On uphill grades or on a down-
hill slope, also secure the vehi-
cle, for instance with a wheel
chock.
WARNING
Unattended children or animals in
the vehicle can cause the vehicle
to move and endanger them-
selves and traffic, for instance due
to the following actions:
●Pressing the Start/Stop button.
●Releasing the parking brake.
●Opening and closing the doors
or windows.
●Engaging selector lever position
N.
●Using vehicle equipment.
There is a risk of accidents or inju-
ries. Do not leave children or ani-
mals unattended in the vehicle.
Take the remote control with you
when exiting and lock the vehicle.
Overview
Parking brake
Setting
With a stationary vehicle
Pull the switch.
The LED lights up.
The indicator light in the
instrument cluster illumi-
nates red. The parking
brake is set.
While driving
The indicator light in the
instrument cluster illumi-
nates red, a signal
sounds, and the brake
lights illuminate.