cle occupants. There is a risk of an accident
and injury.
Never leave animals unattended in the vehi-
cle. Always secure animals properly during
the journey, e.g. use a suitable animal trans-
port box.
Driving safety systems
Overview of driving safety systems
In this section, you will find information about
the following driving safety systems:
RABS (Anti-lock Braking System)
(Ypage 68)
RBAS ( Brake Assist System) (Ypage 69)
RBAS PLUS ( BrakeAssist System PLUS) with
Cross-Traffic Assist (Ypage 69)
RCOLLISION PREVENTION ASSIST PLUS
(Ypage 71)
RESP®( E lectronic StabilityProgram)
(Ypage 73)
REBD ( Electronic Brake force Distribution)
(Ypage 75)
RADAPTIVE BRAKE (Ypage 75)
RPRE-SAFE®Brake (Ypage 75)
RSTEER CONTROL (Ypage 77)
Important safety notes
If you fail to adapt your driving style or if you are
inattentive, the driving safety systems can nei-
ther reduce the risk of an accident nor override the laws of physics. Driving safety systems are
merely aids designed to assist driving. You are
responsible for maintaining the distance to the
vehicle in front, for vehicle speed, for braking in
good time, and for staying in lane. Always adapt
your driving style to suit the prevailing road and weather conditions and maintain a safe distance
from the vehicle in front. Drive carefully.
The driving safety systems described only work as effectively as possible when there is ade-
quate contact between the tires and the road
surface. Pay particular attention to the informa-
tion regarding tires, recommended minimum
tire tread depths etc. in the "Wheels and tires"
section (
Ypage 384). In wintry driving conditions, always use winter
tires (M+S tires) and if necessary, snow chains.
Only in this way will the driving safety systems
described in this section work as effectively as
possible.
ABS (Anti-lock Braking System)
General information
ABS regulates brake pressure in such a way that
the wheels do not lock when you brake. This
allows you to continue steering the vehicle when
braking.
The ! ABS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out when the engine is running.
ABS works from a speed of about 5 mph
(8 km/h), regardless of road-surface conditions.
ABS works on slippery surfaces, even when you
only brake gently.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 68).
GWARNING
If ABS is faulty, the wheels could lock when
braking. The steerability and braking charac-
teristics may be severely impaired. Addition-
ally, further driving safety systems are deac-
tivated. There is an increased danger of skid-
ding and accidents.
Drive on carefully. Have ABS checked imme-
diately at a qualified specialist workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information
on the ABS warning lamp (
Ypage 316) and dis-
play messages which may be shown in the
instrument cluster (
Ypage 278).
Braking
XIf ABS intervenes: continue to depress the
brake pedal vigorously until the braking sit-
uation is over.
XTo make a full brake application: depress
the brake pedal with full force.
68Driving safety systems
Safety
Important safety notes
GWARNING
If road and weather conditions are poor,
trailer stabiliz ationwillnotbe able to prevent
the veh icle/trailer co mbination from swerv-
ing. Trailers with a high center of gravity can
tip over before ESP
®can detect this. There is
a risk of an acc ident.
Always adapt your driving style to the prevail-
ing road and weather conditions.
If your veh icle with trailer (veh icle/trailer com-
bin ation) begins to lurch, you can only stabilize
the veh icle/trailer co mbination by depr essing
the brake firmly.
ESP
®trailer stabiliz ationisactive above speeds
of about 65 km/h.
ESP
®trailer stabiliz ation does not work ifESP®
is deactivated or disabled because of a malfunc-
tion.
Crosswind Assist (vehicles without
MAGIC BODY CONTROL)
General information
Vehicle swit h MAGIC BODY CONTROL: informa-
tion on stabiliz ing the vehicle inthe event of
crosswin d (
Ypage 210).
St rong crosswinds can cause your veh icleto
deviate from a straight course. The crosswin d
driv ing assistance function integrated inESP
®
noticeably reduces these impairments.
ESP®intervenes automatical lyaccording to the
dire ction and intensity of the crosswinds affect-
ing your veh icle.
ESP intervenes with stabiliz ing braking to assist
you inkeepin g the veh icle inthe lane.
Cros swind Assist isactive at veh iclespeeds
above 50 mph (80 km/h) when driving straight
ahead or cornering gently.
Important safety notes
Cros swind Assist does not work ifESP®is
swit ched off or deactivated because of a mal-
function.
EBD (electronic brake force distribu-
tion)
General information
EBD monitors and controls the brake pressure
on the rear wheels to improve driving stability
while braking.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 68).
GWARNING
If EBD ismalfunctioning, the rear wheels can
lock, e.g. under full braking. This increases the
risk of skidding and an accident.
You should therefore adapt your driving style
to the different handlin g characteristics. Have
the brake system checked at a qualified spe-
cialist workshop.
Observe information regarding indicator and
warning lamps (
Ypage 316) as wellas display
messages (Ypage 280).
ADAPTIVE BRAKE
ADAPTIVE BRAKE enhances braking safety and
offers increased braking comfort. In addition to
the braking function, ADAPTIVE BRAKE also has
the HOLD function (
Ypage 208) and hillstart
assist (Ypage 165).
PRE-SAFE®Brake
General information
PRE-SAFE®Brake can help you to minimize the
risk of a collision with a vehicle ahead or a
pedestrian, and reduce the effects of such a
collision. If PRE-SAFE
®Brake has detected a risk
of collision, you willbe warned visually and
acoustically as wellas by automatic braking.
iPay attention to the important safety notes
in the "Driving safety systems" section
(
Ypage 68).
PRE‑ SAFE
®Brake isonly availab le invehicles
wit h the Driving Assistance Plus package.
Driving safety systems75
Safety
Z
For PRE-SAFE®Brake to assist you when driving,
the radar sensor system and the camera system
must be switched on and be operational.
With the help of the radar sensor system and the
camera system, PRE-SAFE
®Brake can detect
obstacles that are in front of your vehicle for an
extended period of time.
In addition, pedestrians in the path of your vehi-
cle can be detected.
PRE-SAFE
®Brake detects pedestrians using
typical characteristics such as the body con-
tours and posture of a person standing upright.
iObserve the restrictions described in the
"Important safety notes" sec-
tion“ (
Ypage 76).
Important safety notes
GWARNING
PRE-SAFE
®Brake will initially brake your vehi-
cle by a partial application of the brakes if a
danger of collision is detected. There may be
a collision unless you brake yourself. Even
after subsequent full application of the brakes
a collision cannot always be avoided, partic-
ularly when approaching at too high a speed.
There is a risk of an accident.
Always apply the brakes yourself and try to
take evasive action, provided it is safe to do
so.
In the event of a partial application of the brakes,
the vehicle is braked with up to 50% of the full
braking pressure.
GWARNING
PRE-SAFE
®Brake cannot always clearly iden-
tify objects and complex traffic conditions.
In these cases, PRE-SAFE
®Brake may:
Rgive an unnecessary warning and then
brake the vehicle
Rnot give a warning or intervene
There is a risk of an accident.
Always pay particular attention to the traffic
situation and be ready to brake, especially if
PRE-SAFE
®Brake warns you. Terminate the
intervention in a non-critical driving situation.
GWARNING
PRE-SAFE
®Brake cannot always clearly iden-
tify people, especially if they are moving. In
these cases, PRE-SAFE
®Brake cannot inter-
vene. There is a risk of an accident.
Always pay particular attention to the traffic
situation and be ready to brake, especially if
PRE-SAFE
®Brake warns you.
In order to maintain the appropriate distance to
the vehicle in front and thus prevent a collision,
you must apply the brakes yourself.
GWARNING
PRE-SAFE
®Brake does not react:
Rto small people, e.g. children
Rto animals
Rto oncoming vehicles
Rto crossing traffic
Rwhen cornering
As a result, PRE-SAFE
®Brake may neither
give warnings nor intervene in all critical sit-
uations. There is a risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake.
In the event of snowfall or heavy rain, the rec-
ognition can be impaired.
Recognition by the radar sensor system is also
impaired in the event of:
Rthere is dirt on the sensors or anything else
covering the sensors
Rthere is interference by other radar sources
Rthere are strong radar reflections, for exam-
ple in parking garages
Ra narrow vehicle traveling in front, e.g. a
motorbike
Ra vehicle traveling in front on a different line
relative to the center of your vehicle
Recognition by the camera system is also
impaired in the event of:
Rdirt on the camera or if the camera is covered
Rthere is glare on the camera system, e.g. from
the sun being low in the sky
76Driving safety systems
Safety
If you come into contact with the electrolyte,
observe the following:
RRinse off the electrolyte from your skin
immediately with water.
RImmediately rinse the electrolyte out of
your eyes thoroughly with clean water.
RIf the electrolyte is swallowed, immediately
rinse your mouth out thoroughly. Do not
induce vomiting.
RIf electrolyte comes into contact with your
skin or hair or is swallowed, seek medical
attention immediately.
RImmediately change out of clothing which
has come into contact with electrolyte.
RIf an allergic reaction occurs, seek medical
attention immediately.
The rear-view mirror and the exterior mirror on
the driver's side automatically go into anti-glare
mode if the following conditions are met simul-
taneously:
Rthe ignition is switched on
Rincident light from headlamps strikes the sen-
sor in the rear-view mirror.
The mirrors do not go into anti-glare mode if
reverse gear is engaged or if the interior lighting
is switched on.
Parking position for the exterior mir-
ror on the front-passenger side
Setting and storing the parking position
You can position the front-passenger side exte-
rior mirror in such a way that you can see the
rear wheel on that side as soon as you engage
reverse gear. You can store this position.
Using reverse gear
:Memory button M
;Adjustment button
=Button for the front-passenger side exterior
mirror
?Button for the driver's side exterior mirror
XTurn the SmartKey to position 2in the ignition
lock (Ypage 162).
XPress button =for the exterior mirror on the
front-passenger side.
XEngage reverse gear.
The exterior mirror on the front-passenger
side moves to the preset parking position.
XUse adjustment button ;to adjust the exte-
rior mirror to a position that allows you to see
the rear wheel and the curb.
The parking position is stored.
iIf you shift the transmission to another posi-
tion, the exterior mirror on the front-
passenger side returns to the driving position
after approximately ten seconds.
Using the memory button
You can store the parking position of the exte-
rior mirror on the front-passenger side using
memory button M:. The reverse gear must not
be engaged during the process.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 162).
XPress button =for the exterior mirror on the
front-passenger side.
XUse adjustment button ;to adjust the exte-
rior mirror to a position that allows you to see
the rear wheel and the curb.
Mirrors125
Seats, steering wheel and mirrors
Z
Useful information
i
This Operator's Manual describes all models
and all standard and optional equipment of
your vehicle available at the time of publica-
tion of the Operator's Manual. Country-spe-
cific differences are possible. Please note
that your vehicle may not be equipped with all
features described. This also applies to
safety-related systems and functions.
iRead the information on qualified specialist
workshops (Ypage 28).
Overview of climate control systems
General notes
Observe the settings recommended on the fol-
lowing pages. The windows could otherwise fog
up.
To prevent the windows from fogging up:
Rswitch off climate control only briefly
Rswitch on air-recirculation mode only briefly
Rswitch on the cooling with air dehumidifica-
tion function
Rswitch on the defrost windshield function
briefly, if required
Climate control regulates the temperature and
air humidity in the vehicle interior. The air filter
cleans the air, thus improving the interior cli-
mate.
For vehicles with a combustion engine, the
"Cooling with air dehumidification" function is
only available when the engine is running. For
hybrid vehicles, the "Cooling with air dehumidi-
fication" function is also available via the elec-
tric refrigerant compressor when the engine is
not running. Optimum climate control is only
achieved with the side windows and roof closed.
If you start the engine using your smartphone,
the last selected climate control setting is reac-
tivated (
Ypage 164).
The residual heat function can only be activated
or deactivated with the ignition switched off
(
Ypage 152).
iVentilate the vehicle for a brief period during
warm weather, e.g. using the convenience
opening feature (
Ypage 95). This will speed
up the cooling process and the desired inte- rior temperature will be reached more
quickly.
iThe integrated filter filters out most parti-
cles of dust and soot and completely filters
out pollen. It also reduces gaseous pollutants
and odors. A clogged filter reduces the
amount of air supplied to the vehicle interior.
For this reason, you should always observe
the interval for replacing the filter, which is
specified in the Maintenance Booklet. As it
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Maintenance Book- let.
iIt is possible that the blower may be activa-
ted automatically 60 minutes after the Smart-
Key has been removed depending on various
factors, e.g. the outside temperature. The
vehicle is then ventilated for 30 minutes to dry
the climate control system.
140Overview of climate control systems
Climate control
Notes on using automatic climate
control
Climate control system
Below, you can find a number of notes and rec-
ommendations to help you use climate control
optimally.
RActivate climate control using the Ã
rocker switch. The indicator lamp in the Ã
rocker switch lights up.
RSet the temperature to 72 ‡ (22 †).
ROnly use the "Windshield defrosting" function
briefly until the windshield is clear again.
ROnly use air-recirculation mode briefly, e.g. if
there are unpleasant outside odors or when in
a tunnel. The windows could otherwise fog up, since no fresh air is drawn into the vehicle in
air-recirculation mode.
RUse the residual heat function if you want to
heat or ventilate the vehicle interior when the
ignition is switched off. The residual heat
function can only be activated or deactivated
with the ignition switched off. The residual
heat function is switched off when the ignition
is switched on.
If you are controlling the rear-compartment cli-
mate control using the front control panel, note
the following:
RIf you set rear-compartment climate control
using the front control panel, the Ysym-
bol appears in the rear-compartment control
panel display.
RIf the rear-compartment climate control is set
using the front control panel, it cannot be set
at the same time using the rear control panel. After completing the settings for the rear-
compartment climate control using the front
control panel, wait five seconds. You will then
be able to control the rear climate control
using the rear control panel.
RAfter selecting the rear compartment set-
tings, the front climate control can be con-
trolled automatically again via the multimedia
system after five seconds.
Alternatively, you can select "Cancel rear
compartment" in the multimedia system air-
conditioning function bar.
ECO start/stop function
During automatic engine switch-off, the climate
control system only operates at a reduced capa-
city. If you require the full climate control output,
you can switch off the ECO start/stop function
by pressing the ECO button (
Ypage 167).
Operating the climate control sys-
tems
Activating/deactivating climate con-
trol
General notes
When the climate control is switched off, the air
supply and air circulation are also switched off.
The windows could fog up. Therefore, switch off
climate control only briefly
Switch on climate control primarily using the
à rocker switch (
Ypage 147).
Activating/deactivating front climate
control using the front control panel
XTurn the SmartKey to position 2in the ignition
lock (Ypage 162).
XTo activate: press thetor! rocker
switch up or down.
The climate control menu opens.
XActivate climate control via the air-condition-
ing setting bar in the multimedia system (see
the separate operating instructions).
XTo deactivate: press thetor!
rocker switch up or down.
The climate control menu opens.
XActivate climate control via the air-condition-
ing setting bar in the multimedia system (see
the separate operating instructions).
Activating/deactivating rear-compart-
ment climate control using the front
control panel
Observe the notes on controlling the rear-com-
partment climate control using the front control
panel (
Ypage 145).
Operating the climate control systems145
Climate control
XTurn the SmartKey to position2in the ignition
lock (Ypage 162).
XTo activate: press thetor! rocker
switch up or down.
The climate control menu opens.
XSelect "Rear adjustment" in the air-condition-
ing setting bar (see the separate operating
instructions).
You can control the rear-compartment cli-
mate control using the front control panel or
via the multimedia system.
XActivate rear-compartment climate control
via the air-conditioning setting bar.
XTo deactivate: press thetor!
rocker switch up or down.
The climate control menu opens.
XSelect "Rear adjustment" in the air-condition- ing setting bar (see the separate operating
instructions).
XDeactivate rear-compartment climate control
via the air-conditioning setting bar.
Activating/deactivating rear-compart-
ment climate control using the rear con-
trol panel
XTurn the SmartKey to position 2in the ignition
lock (Ypage 162).
XTo activate: press rocker switch Lup or
down (Ypage 141).
The indicator lamp in rocker switch Lgoes
out. All settings are displayed in full in the
rear-compartment display.
XTo deactivate: press rocker switch Lup or
down (Ypage 141).
The indicator lamp in rocker switch Llights
up. OFF is displayed in the rear-compartment
display.
Switching cooling with air dehumidi-
fication on/off
General notes
If you deactivate the "Cooling with air-dehumid-
ification" function, the air inside the vehicle will
not be cooled. The air inside the vehicle will also
not be dehumidified. The windows can fog up
more quickly. Therefore, deactivate the cooling
with air-dehumidification function only briefly. For vehicles with a combustion engine, the
"Cooling with air dehumidification" function is
available when the engine is running. For hybrid
vehicles, the "Cooling with air dehumidification"
function is also available via the electric refrig-
erant compressor when the engine is not run-
ning. The air inside the vehicle is cooled and
dehumidified according to the temperature
selected.
Condensation may drip from the underside of
the vehicle when it is in cooling mode. This is
normal and not a sign that there is a malfunc-
tion.
Switching on/off
XTo activate: press theÁrocker switch up
or down.
The indicator lamp above the rocker switch
lights up.
or
XActivate the "Cooling with air dehumidifica-
tion" function via the multimedia system (see
the separate operating instructions).
XTo deactivate: press theÁrocker switch
up or down.
The indicator lamp above the rocker switch
goes out.
or
XDeactivate the "Cooling with air dehumidifi-
cation" function via the multimedia system
(see the separate operating instructions).
146Operating the climate control systems
Climate control
Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences andMSolutions
The indicator lamp in the
Ábutton flashes
three times or remains
off. Cooling with air
dehumidification can
also no longer be activa-
ted using the multimedia
system (see the sepa-
rate operating instruc-
tions).Cooling with air dehumidification has been deactivated due to a mal-
function.
XVisit a qualified specialist workshop.
Setting climate control to automatic
General notes
In automatic mode, the set temperature is main-
tained automatically at a constant level. The
system automatically regulates the temperature
of the dispensed air, the airflow and the air dis-
tribution.
The "Cooling with air dehumidification" function
is activated automatically in automatic mode.
Controlling front climate control auto-
matically using the front control panel
XTurn the SmartKey to position 2in the ignition
lock (Ypage 162).
XSet the desired temperature using the w
rocker switch on the front control unit.
or
XSet the desired temperature using the multi-
media system (see the separate operating
instructions).
XTo activate: press rocker switch Ãup or
down.
The indicator lamp in the Ãrocker switch
lights up.
XTo switch to manual operation: press the
K rocker switch up or down.
or
XSet the airflow using the multimedia system
(see the separate operating instructions).
or
XSet the airflow using the multimedia system
(see the separate operating instructions).
The indicator lamp in the Ãrocker switch
goes out. In automatic mode, if you adjust the airflow or
air distribution manually, the indicator lamp on
the
à rocker switch goes out. The function
which has not been changed manually, however, continues to be controlled automatically. When
the manually set function switches back to auto-
matic mode, the indicator lamp on the Ã
rocker switch lights up again.
Controlling rear-compartment climate
control automatically using the front
control panel
Observe the notes on controlling the rear-com-
partment climate control using the front control
panel (
Ypage 145).
XTurn the SmartKey to position 2in the ignition
lock (Ypage 162).
XPress the tor! rocker switch up or
down.
The climate control menu opens.
XSelect "Rear adjustment" in the air-condition-
ing setting bar (see the separate operating
instructions).
You can control the rear-compartment cli-
mate control using the front control panel or
the multimedia system.
XSet the desired temperature using the w
rocker switch on the front control unit.
or
XSet the desired temperature using the multi-
media system (see the separate operating
instructions).
Operating the climate control systems147
Climate control