Page 377 of 769

376 Controls in detailSeatsSeat ventilation*
The buttons for seat ventilation are located
on the respective door. The blue indicator
lamps on the button come on show the
ventilation level selected.
1Seat ventilation button
Switch on the ignition (
page 365).
Switching on: Press button1 repeat-
edly until the desired ventilation level is
set.
One or more blue indicator lamps on
the button show the selected ventila-
tion level.
Switching off: Press button1 repeat-
edly until all indicator lamps go out.
Head restraints
Level3
Three indicator lamps on
(highest level)
2
Two indicator lamps on
1
One indicator lamp on
(lowest level)
off
No indicator lamp on
i
The seat ventilation for the driver’s seat can
be activated using summer opening feature
(
page 404).
i
If one or more of the lamps on the seat ven-
tilation button are flashing, there is insufficient
voltage available since too many electrical con-
sumers are turned on. The seat ventilation
switches off automatically.
The seat ventilation will switch back on again au-
tomatically as soon as sufficient voltage is avail-
able.Warning!
G
For your protection, drive only with properly
positioned head restraints.
Adjust the head restraint so that it is as
close to the head as possible and the center
of the head restraint supports the back of
the head at eye level. This will reduce the po-
tential for injury to the head and neck in the
event of an accident or similar situation.
Do not drive the vehicle without the seat
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent.
Page 378 of 769
377 Controls in detailSeats
Front power head restraints
Head restraint height
1Head restraint height
Press the switch up or down in the di-
rection of arrow1.Head restraint tilt
Manually adjust the angle of the head re-
straint.
Push or pull on the upper edge of the
head restraint cushion.Rear seat head restraints
i
Adjust the head restraint in such a way that
it is as close to the head as possible.
i
Depending on the seat’s set fore and aft po-
sition, the head restraint height is automatically
pre-set.
Warning!
G
For safety reasons, always drive with the
rear head restraints in the upright position
when the rear seats are occupied.
Otherwise, the back of the head will not be
supported in the event of a collision. That
could cause serious or even fatal injuries.
Rear seat occupants can be seriously in-
jured or killed.Warning!
G
Keep the area around head restraints clear
of articles (e.g. clothing) to not obstruct the
folding operation of the head restraints.
Page 379 of 769

378 Controls in detailSeatsFolding head restraints back
The rear seat head restraints can be folded
backward for increased visibility.
1Switch in the front center console
Switch on the ignition (
page 365).
Press switch1 in the front center con-
sole briefly.
The rear seat head restraints will fold
backward.Placing head restraints upright
Switch on the ignition (
page 365).
Press and hold switch1 in the front
center console (
page 378).
The rear seat head restraints will place
upright.Manually placing head restraints
upright
Pull the rear seat head restraint upright
until it locks into place.
i
When fasten a rear seat belt (
page 388),
the respective rear seat head restraint places
upright automatically.
Warning!
G
Make sure the rear seat head restraints en-
gage when placing them upright manually.
Otherwise their protective function cannot
be ensured.
The back of the head will not be supported
in the event of a collision. That could cause
serious or even fatal injuries. Rear seat oc-
cupants can be seriously injured or killed.
Page 380 of 769

379 Controls in detail
Steering wheel
Steering wheel
Make sure that
you can reach the steering wheel with
your arms slightly bent at the elbows
you can move your legs freely
all displays (including malfunction and
indicator lamps) on the instrument
cluster are clearly visible
Steering wheel adjustment
1Adjusting steering wheel, in or out
2Adjusting steering column, up or down
Adjusting steering wheel in or out:
Move stalk forward or back in the direc-
tion of arrow1 until a comfortable
steering wheel position is reached with
your arms slightly bent at the elbow.
Adjusting steering wheel up or
down: Move stalk up or down in the di-
rection of arrow2.
Warning!
G
Do not adjust the steering wheel while driv-
ing. Adjusting the steering wheel while driv-
ing could cause the driver to lose control of
the vehicle.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle.
Even with the SmartKey or SmartKey with
KEYLESS-GO* removed from the starter
switch or the SmartKey with KEYLESS-GO*
removed from the vehicle, the steering
wheel adjustment feature can be operated.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. A child’s unsupervised access to a
vehicle could result in an accident and/or
serious personal injury.
i
The memory function (
page 385) lets you
store settings for the steering wheel together
with the settings for the seat position and the ex-
terior rear view mirrors.
Page 381 of 769

380 Controls in detailSteering wheelHeated steering wheel*
The steering wheel heating warms up the
leather area of the steering wheel.
1Switching on
2Switching off
3Indicator lamp
Switch on the ignition (
page 365).
Switching on: T urn s witc h at t he tip of
stalk in the direction of arrow1.
The steering wheel is heated. Indicator
lamp3 comes on.
Switching off: T u r n s w i t c h a t t h e t i p o f
stalk in the direction of arrow2.
The steering wheel heating is turned
off. Indicator lamp3 goes out.
i
The steering wheel heating will not switch
on, when the temperature of the vehicle interior
is above 86°F (30°C).
i
Indicator lamp3 flashes or goes out
in case of power surge or undervoltage
in case of a steering wheel heating
malfunction
i
The steering wheel heating switches off
automatically:
when you remove the SmartKey from the
starter switch
on vehicles with KEYLESS-GO*, when you
switch off the ignition (
page 365) and
open the driver’s door
when the temperature of the vehicle interior
is above 86°F (30°C)
after approximately 30 minutes
Page 382 of 769

381 Controls in detail
Mirrors
Mirrors
Adjust the interior and exterior rear view
mirrors before driving so that you have a
good view of the road and traffic condi-
tions.Interior rear view mirror
Manually adjust the interior rear view
mirror.
For more information, see “Auto-dimming
rear view mirrors” (
page 383).
Exterior rear view mirrors1 Selector switch for right or left exterior
mirror
2Adjustment button
Switch on the ignition (
page 365).
Press button1 repeatedly until de-
sired exterior mirror is selected.
The left or right indicator lamp in
button1 comes on.
Push adjustment button2 up, down,
left, or right according to the desired
setting.
Warning!
G
Exercise care when using the passenger
side exterior rear view mirror. The mirror
surface is convex (outwardly curved surface
for a wider field of view). Objects in mirror
are closer than they appear. Check your in-
terior rear view mirror or glance over your
shoulder before changing lanes.
i
When you press button1 for the first time,
the exterior mirror on the driver’s side is always
selected.
If you do not make adjustments to the selected
exterior rear view mirror within 15 seconds, the
indicator lamp goes out. You will then have to se-
lect the desired exterior rear view mirror again
before any adjustments can be made. Adjust-
ments can only be made with the indicator lamp
for the respective exterior rear view mirror but-
ton illuminated.
i
At low ambient temperatures, the exterior
rear view mirrors will be heated automatically.
i
The memory function (
page 385) lets you
store the setting for the exterior rear view mir-
rors together with the setting for the steering
wheel and the seat positions.
Page 383 of 769

382 Controls in detailMirrorsPower folding exterior rear view mirrors
Folding exterior rear view mirrors in
and out automatically
When the corresponding function in the
COMAND system is activated
(page 262):
The exterior rear view mirrors automat-
ically fold in as soon as the vehicle is
locked from the outside.
The exterior rear view mirrors automat-
ically fold out as soon as the vehicle is
unlocked and the driver’s or passenger
door are subsequently opened.Folding exterior rear view mirrors in
and out manually
The exterior rear view mirrors can vibrate if
they are not folded out completely.
1Folds the exterior mirrors in and out
Switch on the ignition (
page 365).
Folding in: Press button1.
Folding out: Press button1 again.
!
Before driving the vehicle through an auto-
matic car wash, fold the exterior mirrors in. Oth-
erwise they may get damaged.
i
If you are driving at more than approximately
9 mph (15 km/h), you will not be able to fold the
exterior mirrors in.
i
The mirrors do not fold out if they were pre-
viously folded in manually. Please make sure
both mirrors are folded out before driving off.
!
If an exterior rear view mirror housing has
been forcibly pushed forward (hit from the rear),
reposition it manually by applying firm pressure
until it snaps back into place.
If an exterior rear view mirror housing has been
forcibly pushed rearward (hit from the front),
press button1 to fold mirrors in, then press
button1 again to fold mirrors out. Do not force
mirrors by hand as this may damage the adjust-
ment mechanism.
The mirror housing is then properly positioned
and you can adjust the mirror in the usual
manner.
Page 384 of 769

383 Controls in detail
Mirrors
Auto-dimming rear view mirrors
The reflection brightness of the exterior
rear view mirror on the driver’s side and
the interior rear view mirror will respond
automatically to glare when
the ignition is switched on
(page 365)
and
incoming light from headlamps falls on
the sensor in the interior rear view
mirror
The interior rear view mirror will not react if
reverse gear R is engaged
and
the interior lighting is turned on
Warning!
G
The auto-dimming function does not react if
incoming light is not aimed directly at the
sensors in the interior rear view mirror.
The interior rear view mirror and the exterior
rear view mirror on the driver’s side do not
react, for example, if the rear window sun-
shade is in raised position.
Light hitting the mirror(s) at certain angles
(incident light) could blind you. As a result,
you may not be able to observe traffic con-
ditions and could cause an accident.
Warning!
G
Exercise care when using the passen-
ger-side exterior rear view mirror. The mirror
surface is convex (outwardly curved surface
for a wider field of view). Objects in mirror
are closer than they appear. Check your in-
side rear view mirror or glance over your
shoulder before changing lanes.