Page 105 of 416

105 Controls in detailSeats
You can activate the following functions:
Steering column
Only the steering column is adjusted.
Steering column and seat
Both the steering column and the seat
are adjusted.
The easy-entry/exit feature can be
switched on or off in the Settings menu of
the Control System (
page 156).
Head restraints
Information on head restraint adjustment
can be found in the “Getting started” sec-
tion (
page 37).Front seat head restraints
Removing front head restraints
Press switch1 upwards and hold until
the head restraint is fully extended.
Pull out head restraint.
Warning!
G
You must ensure that no one can become
trapped or injured by the moving steering
wheel and driver’s seat when the
easy-entry / exit feature is activated, the
driver’s door is being opened, and the en-
gine is turned off or the SmartKey removed
from the starter switch. Do not leave chil-
dren unattended in the vehicle, or with ac-
cess to an unlocked vehicle. Unsupervised
use of vehicle equipment may cause an
accident and/or serious personal injury.
Warning!
G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint to support the back of
the head approximately at ear level.
Do not drive the vehicle without the seat
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent.iTilt the seat backrest to the rear for
easier removal and installation of the
head restraints.
Page 106 of 416

106 Controls in detailSeatsInstalling front head restraints:
Press switch1 upwards and hold for
about five seconds.
Push the head restraint down until it
engages.
Adjust head restraint to desired posi-
tion (
page 35).
Rear seat head restraintsFolding rear head restraints back
Make sure the ignition is switched on.
All the lamps in the instrument cluster
should light up.
Press switch1.
The rear head restraints will fold back-
ward.Placing rear head restraints upright
Pull the rear head restraint forward un-
til it locks into position.
Rear head restraint tilt
The read head restraint angle can be ad-
justed manually.
Warning!
G
For safety reasons, always drive with the
rear head restraints in the upright position
when the rear seats are occupied.
Keep the area around head restraints clear
of articles (e.g. clothing) to not obstruct the
folding operation of the head restraints.iYou can adjust the angle manually by
pulling or pushing the head restraints
by hand.
!Make sure that the head restraints en-
gage when adjusting them manually.
Otherwise, their protective function
cannot be ensured.
Page 107 of 416

107 Controls in detailSeats
Power head restraints, rear*
You can fold the rear head restraints back-
ward or forward using head restraint fold-
ing switch. The switches are located
on the front center console
(page 106):
Make sure the ignition is switched
on.
All the lamps in the instrument clus-
ter should light up
Press switch1 briefly.
The rear head restraints will fold
backward.
Press switch1 and hold.
The rear head restraints will fold up-
right.
on the rear section of the door for ad-
justing the respective head restraint:
Make sure the ignition is switched
on.
All the lamps in the instrument clus-
ter should light up
Press switch1 up.
The rear head restraints will fold up-
right.
Press switch1 down.
The rear head restraints will fold
backward.
Multicontour seat*
The multicontour seat has a movable seat
cushion and inflatable air cushions built
into the seat backrest to provide additional
lumbar and side support.
The seat cushion movement and the seat
backrest cushion height and curvature can
be continuously varied with regulators on
the right side of the seat after turning the
SmartKey in the starter switch to
position2 or pressing the KEYLESS-GO*
start/stop button twice.
Page 108 of 416
108 Controls in detailSeats1Shoulder region support
2Side bolster adjustment
3Massage function (PULSE)
4Lumbar region support
Adjusting the multicontour seat in the or-
der listed above is recommended.
Make sure that the ignition is switched
on.
All lamps in the instrument cluster light
up.Shoulder region support
Press
æ
or
ç
on switch1.
The air cushion inflates or deflates.
Lumbar region support
Press
k
or
j
on rocker
switch4.
This selects the air cushion you wish to
adjust.
Press
æ
or
ç
on rocker
switch4.
The air cushion inflates or deflates.Side bolsters adjustment
Adjust the side bolsters so that they
provide good lateral support using
switch 2.iWhen the engine is turned off, the last
cushion setting is retained in memory
and the cushion is automatically ad-
justed to this setting when the engine
is restarted.
Page 109 of 416

109 Controls in detailSeats
Massage function (PULSE)
You can reduce muscle tension during long
trips by periodically using the massage
function.
Press button3.
The indicator lamp on button3 lights
up. The air cushions in the lumbar re-
gion inflate and deflate (pulse).
Drive-dynamic seat*
The drive-dynamic seat automatically ad-
justs the lateral support provided by the
seat backrest to your driving style.
1Activate drive-dynamic function
The drive-dynamic seat electronically con-
trols the air pressure in the air chambers of
the seat backrest side bolsters. This func-
tion improves driving comfort and plea-
sure.Activating
Press button1.
The indicator lamp in the button lights
up.
Deactivating
Press button1 again.
The indicator lamp in the button goes
out.
iThe massage function switches off au-
tomatically after approximately eight
minutes. The indicator lamp extinguish-
es.
iYou can adjust the characteristics of
the drive-dynamic seat using the con-
trol system (
page 159).
Page 110 of 416

110 Controls in detailSeatsSeat ventilation*
The switch is located on the door. Seat
ventilation can be activated manually with
the SmartKey in starter switch position1
or2 (
page 31) or by the summer open-
ing feature (
page 190).
The blue indicator lamps on the switch
show the ventilation level selected:
1Seat ventilation switch
Make sure the ignition is switched on.
All lamps in the instrument cluster light
up.
Switching on seat ventilation
Press switch1.
Three blue indicator lamps above the
switch light up.
Continue pressing switch until the de-
sired seat ventilation level is reached.Switching off seat ventilation
Press switch1 repeatedly until all indi-
cator lamps go out.
Level3
Three indicator lamps lit
2
Two indicator lamps lit
1
One indicator lamp lit
off
No indicator lamp lit
iThe seat ventilation is automatically set
to the highest level if activated via sum-
mer opening feature (
page 190).
!If one or all of the lamps blink on the
seat ventilation switch, there is insuffi-
cient voltage since too many electrical
consumers are switched on. The seat
ventilation switches off automatically.
The seat ventilation will switch back on
again automatically as soon as suffi-
cient voltage is available.
Page 111 of 416
111 Controls in detailSeats
Seat heating*
Vehicles without seat ventilation*
The switch is located on the door.
1Normal heating
2Rapid heating
Make sure that the ignition is switched
on.
All the lamps in the instrument cluster
light up.Switching on seat heating
Press switch1.
A red indicator lamp above the switch
lights up.
Switching off seat heating
Press switch1 again. Rapid seat heating mode
Press switch2.
Both red indicator lamps above the
switch light up.
iThe seat heating will be automatically
switched off after approximately
30 minutes.
iThe system switches over to normal
heating mode after approximately five
minutes. Only the right-hand indicator
lamp remains lit.
Page 112 of 416
112 Controls in detailSeatsSwitching off rapid seat heating mode
Press switch2 again. Vehicles with seat ventilation*
The switch is located on the door. The red
indicator lamps on the switch show the
heating level selected:
1Seat heating switch
Make sure the ignition is switched on.
All the lamps in the instrument cluster
light up.
Switching on seat heating
Press switch1 twice.
A red indicator lamp above the switch
lights up.
Switching off seat heating
Press switch1 again.
!If one or both of the lamps on the seat
heating switch are blinking, there is in-
sufficient voltage available since too
many electrical consumers are turned
on. The seat heating switches off auto-
matically.
The seat heating will switch back on
again automatically as soon as suffi-
cient voltage is available.
Level2
Two indicator lamps lit
1
One indicator lamp lit
off
No indicator lamp lit
iThe seat heating will be automatically
switched off after approximately
30 minutes.