Page 107 of 450
Therefore, do not switch the seat heating on
repeatedly.
Driver's and front-passenger seat
Rear seats
The three red indicator lamps in the button indi-
cate the heating level you have selected.
The system automatically switches down from
level3to level 2after approximately eight
minutes.
The system automatically switches down from
level 2to level 1after approximately ten
minutes.
The system automatically switches off approx-
imately 35 minutes after it is set to level 1.
XTurn the SmartKey to position1or 2in the
ignition lock (Ypage 145).
XTo switch on: press button:repeatedly
until the desired heating level is set.
XTo switch off: press button:repeatedly
until all the indicator lamps go out.
iIf the battery voltage is too low, the seat
heating may switch off.
Seats105
Seats, steering wheel and mirrors
Z
Page 108 of 450

Problems with the seat heating
ProblemPossible causes/consequences andMSolutions
The seat heating has
switched off prematurely
or cannot be switched
on.The on-board voltage is too low because too many electrical consum-
ers are switched on.
XSwitch off electrical consumers that you do not need, such as the
rear window defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating will switch
back on automatically.
Switching the seat ventilation on/off
Switching on/off
The three blue indicator lamps in the buttons
indicate the ventilation level you have selected.
XTurn the SmartKey to position 1or 2in the
ignition lock (Ypage 145).
XTo switch on: press button:repeatedly
until the desired ventilation level is set.
XTo switch off: press button:repeatedly
until all the indicator lamps go out.
iIf the battery voltage is too low, the seat
ventilation may switch off.
iYou can open the side windows and the slid-
ing sunroof using the "Convenience opening"
feature (
Ypage 92). The seat ventilation of
the driver's seat automatically switches to the
highest level.
106Seats
Seats, steering wheel and mirrors
Page 110 of 450
Adjusting the steering wheel electri-
cally
:Adjusts th esteering whee lheight
;Adjusts th esteering whee lposition (fore-
and-af tadjustment)
The steering whee lcan also be adjusted when
th eSmartKey is remove dfrom th eignition lock.
iFurther relate dsubjects :
REASY-ENTRY/EXIT feature (Ypage 109)
RStoring settings (Ypage 113)
Steering wheel heating
Switching on/off
XTurn th eSmartKey to position 2in th eignition
loc k (Ypage 145).
XTo switch on/off: turnth elever in th edirec -
tion of arrow :or;.
Indicato rlamp =lights up or goe sout .
Vehicles wit hKEYLESS-GO :when you switch off
th eignition and open th edriver's door ,th e
steering whee lheating is deactivated.
Vehicles without KEYLESS-GO :when you
remove th eSmartKey from th eignition lock, th e
steering whee lheating is deactivated.
108Steering wheel
Seats, steering wheel and mirrors
Page 111 of 450

Problems with the steering wheel heating
ProblemPossible causes/consequences andMSolutions
The steering wheel heat-
ing has switched off pre-
maturely or cannot be
switched on.The on-board voltage is too low because too many electrical consum-
ers are switched on.
XSwitch off electrical consumers that you do not need, such as the
rear window defroster or interior lighting.
EASY-ENTRY/EXIT feature
Important safety notes
GWARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel, you and other vehicle
occupants – particularly children – could
become trapped. There is a risk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has
any body parts in the sweep of the steering
wheel.
Move the steering wheel adjustment lever if
there is a risk of entrapment by the steering
wheel. The adjustment process is stopped.
Press one of the memory function position but-
tons. This function is only available on vehicles
with memory function.
GWARNING
If children activate the EASY-ENTRY/EXIT fea-
ture, they can become trapped, particularly
when unattended. There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
GWARNING
If you drive off while the EASY-ENTRY/EXIT
feature is making adjustments, you could lose
control of the vehicle. There is a risk of an
accident.
Always wait until the adjustment process is
complete before driving off.
The EASY-ENTRY/EXIT feature makes getting in
and out of your vehicle easier. You can activate and deactivate the EASY-
ENTRY/EXIT feature in the on-board computer
(
Ypage 275).
Position of the steering wheel when the
EASY-ENTRY/EXIT feature is active
The steering wheel swings upwards when you:
Rremove the SmartKey from the ignition lock
Ropen the driver's door with KEYLESS-GO in
position
1
Ropen the driver's door and the SmartKey is in
position0or 1in the ignition lock
iThe steering wheel only moves upwards if it
has not already reached the upper stop.
Position of the steering wheel for driv-
ing
The steering wheel is moved to the last selected
position when:
Rthe driver's door is closed
Ryou insert the SmartKey into the ignition lock
or
Ryou press the Start/Stop button once on vehi-
cles with KEYLESS-GO
When you close the driver's door with the igni-
tion switched on, the steering wheel is also
automatically moved to the previously set posi-
tion.
The last position of the steering column is stored
when you:
Rswitch the ignition off
Rsave the setting with the memory function
(Ypage 113).
Steering wheel109
Seats, steering wheel and mirrors
Z
Page 130 of 450
Canada only
Front control panel
:Sets the temperature, left (Ypage 134)
;Defrosts the windshield (Ypage 136)
=Switches the ZONE function on/off (Ypage 136)
?Switches cooling with air dehumidification on/off (Ypage 132)
Switches the residual heat on or off (
Ypage 138)
ASwitches the rear window defroster on/off (Ypage 137)
BSets the temperature, right (Ypage 134)
CSwitches air-recirculation mode on/off (Ypage 138)
DSets the air distribution (Ypage 135)
EIncreases the airflow (Ypage 135)
FReduces the airflow (Ypage 135)
GActivates/deactivates climate control (Ypage 132)
HSets climate control to automatic (Ypage 134)
Rear control panel
:Sets rear-compartment climate control to automatic
;Switches the rear climate control on/off
=Directs the airflow through the rear air vents
?Switches the seat heating on the right-hand side on/off
128Overview of climate control systems
Climate control
Page 131 of 450

ADirects the airflow through the footwell vents
BSwitches the seat heating on the left-hand side on/off
Optimum use of dual-zone climate
control
The following contains notes and recommenda-
tions on optimum use of dual-zone climate con-
trol.
RYou can switch on climate control by using the
Ãand¿ orà andÁ buttons.
The indicator lamps in the Ãand
¿ buttons or the ÃandÁ buttons
light 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 ZONE function to adopt the temper-
ature settings on the driver's side for the
front-passenger side as well. The indicator
lamp above the ábutton goes out.
RIf you change the settings of the climate con-
trol system, the climate status display
appears for approximately three seconds at
the bottom of the screen in the multimedia
system display. You will see the current set-
tings of the various climate control functions.
During automatic engine switch-off, the climate
control system only operates at a reduced capa-
city. If you require the full cl
imate control output,
you can switch off the ECO start/stop function
by pressing the ECO button (
Ypage 151).
Overview of climatecont rol systems129
Climate control
Page 132 of 450

Control panel for 3-zone automatic climate control
USAonly
Front control panel
:Sets the temperature, left (Ypage 134)
;Defrosts the windshield (Ypage 136)
=Switches the maximum cooling MAX COOL on or off (Ypage 136)
?Switches cooling with air dehumidification on/off (Ypage 132)
ASwitches the rear window defroster on/off (Ypage 137)
BSets the temperature, right (Ypage 134)
CSwitches the ZONE function on/off (Ypage 136)
DActivates/deactivates climate control (Ypage 132)
ESets the air distribution (Ypage 135)
FIncreases the airflow (Ypage 135)
GReduces the airflow (Ypage 135)
HDisplay
IAdjusts the climate mode settings (Ypage 134)
JSwitches air-recirculation mode on/off (Ypage 138)
KSets climate control to automatic (Ypage 134)
Rear control panel
LIncreases the airflow (Ypage 135)
MSets the temperature (Ypage 134)
NSets rear-compartment climate control to automatic (Ypage 134)
ODirects the airflow through the rear air vents (Ypage 135)
PSwitches the seat heating on the right-hand side on/off (Ypage 104)
QDirects the airflow through the footwell vents (Ypage 135)
RSwitches the rear climate control on/off (Ypage 132)
SReduces the airflow (Ypage 135)
TSwitches the seat heating on the left-hand side on/off (Ypage 104)
130Overview of climate control systems
Climate control
Page 133 of 450

Canada only
Front control panel
:Sets the temperature, left (Ypage 134)
;Defrosts the windshield (Ypage 136)
=Switches the residual heat on or off (Ypage 138)
?Switches cooling with air dehumidification on/off (Ypage 132)
ASwitches the rear window defroster on/off (Ypage 137)
BSets the temperature, right (Ypage 134)
CSwitches the ZONE function on/off (Ypage 136)
DActivates/deactivates climate control (Ypage 132)
ESets the air distribution (Ypage 135)
FIncreases the airflow (Ypage 135)
GReduces the airflow (Ypage 135)
HDisplay
IAdjusts the climate mode settings (Ypage 134)
JSwitches air-recirculation mode on/off (Ypage 138)
KSets climate control to automatic (Ypage 134)
Rear control panel
LIncreases the airflow (Ypage 135)
MSets the temperature (Ypage 134)
NSets rear-compartment climate control to automatic (Ypage 134)
ODirects the airflow through the rear air vents (Ypage 135)
PSwitches the seat heating on the right-hand side on/off (Ypage 104)
QDirects the airflow through the footwell vents (Ypage 135)
RSwitches the rear climate control on/off (Ypage 132)
SReduces the airflow (Ypage 135)
TSwitches the seat heating on the left-hand side on/off (Ypage 104)
Overview of climate control systems131
Climate control