
Adjusting
44 Also on the passenger side, do not recline the 
backrest too far to the rear while the vehicle is 
being driven; otherwise, there is a danger in the 
event of an accident of 'sliding under' the safety 
belt, eliminating the protection normally pro-
vided by the belt.<
Please note the information on damage to 
safety belts provided on page49 and the infor-
mation on the active head restraints on 
page47.
The concept
You adjust the seat in two stages:
1Preselect the function: the button lights up 
brightly
2Adjustments: control knob
>slide forward or back
>slide up or down
>turn
Seat adjustment
You can use the control knob to adjust the set-
tings after selecting the desired function with 
the buttons.
To ensure that the safety systems con-
tinue to provide optimized protection, please follow the adjustment instructions on 
page43.<
3Forward and back:  
Height:  
Backrest:  
This button is basically always active.
4Thigh support:  
Height:  
Tilt:
5Lumbar support
*, refer to Lumbar support 
adjustment
6Height of the head restraint:
Front comfort seat* adjustment
With this seat, you can also adjust:
5Backrest width: increase or decrease lateral 
support 
6Shoulder support, refer to Shoulder support 
adjustment 
Backrest:
Automatic backrest width adjustment
The backrest automatically moves to the widest 
possible position to make it easier to enter and 
exit the vehicle, before then returning to the 
standard position or the stored memory setting.
This automatic system is influenced on each of 
the two seats by their respective door, as well 
as on the driver's seat, by the ignition and on the 
front passenger's seat, by the safety belt 
buckle.
Lumbar support adjustment
5Lumbar support
You can also adjust the contour of the backrest 
to obtain additional support in the lumbar 
region.
The upper hips and spinal column receive sup-
plementary support to help you maintain a 
relaxed, upright sitting position.
>Increase or decrease curvature
>Shift curvature up or down 

Controls
 45Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Shoulder support adjustment
6Adjustment of the tilt angle of the shoulder 
support:
The shoulder support provides support to your 
back in the shoulder region as well. This pro-
vides a relaxed driving position and helps 
relieve stress on the shoulder muscles.
Rear comfort seat* adjustment
You can use the control knob to adjust the set-
tings after selecting the desired function with 
the buttons.
1Forward and back:  
Tilt:  
Backrest:  
This button is basically always active.
2Lumbar support, refer to Lumbar support 
adjustment
3Shoulder support:  
Height of head restraint:  
Backrest:
It is not possible to adjust the comfort 
seats if the safety switch for the power 
windows has been pressed, refer to page40.<
Adjusting passenger seat from rear
The front passenger's seat can be adjusted 
from the rear sitting positions, for instance, 
when a rear passenger desires more legroom. 
Press the button to activate this function, refer 
to arrow.
You can use the control knob to adjust the set-
tings after selecting the desired function with 
the buttons.
1Forward and back:  
Height:  
Tilt:
2Height of head restraint:
Backrest:
Press the button again, refer to arrow, to deac-
tivate this function.
Resetting to standard position
You can use this button to return the rear seats 
to their standard positions. Maintain pressure 
on the button until the system completes the 
adjustment.
The rear seats must be returned to their 
standard position before using a child 
restraint system, refer to page54.< 

Adjusting
46
Seat, mirror and steering 
wheel memory
You can store and select two different adjust-
ment settings for the driver's seat, exterior mir-
rors and steering wheel.
With comfort seats, you can also use the mem-
ory to store and recall two seat positions for 
each additional seat.
The adjustment of the lumbar support is not 
stored in the memory.
Storing
1.Switch on radio ready state or ignition, refer 
to page57.
2.Set desired seat position; for driver's seat 
also set the exterior mirror and steering 
wheel position.
3.Press 
MEMORY button: 
The LED in the button lights up.
4.Press the desired memory button1 or2: 
The LED goes out.
Requesting
Do not request a position from the mem-
ory while the vehicle is moving. There is a 
risk of accident from unexpected movement of 
the seat or steering wheel.<
Comfort mode
1.With driver's door open after unlocking or 
with radio ready state switched on.
2.Briefly press the desired memory button 1 
or2.The adjusting procedure is immediately inter-
rupted when you touch a seat adjustment 
switch or one of the memory buttons.
Safety mode
1.With driver's door closed and ignition 
switched either on or off.
2.Press the desired memory button 1or2 
and maintain pressure until the adjustment 
process has been completed.
If you press the 
MEMORY button accidentally: 
Press the button again; the LED goes out.
Head restraints
A correctly adjusted head restraint reduces the 
risk of injury to cervical vertebrae in the event of 
an accident.
Adjust the head restraint so that its center 
is approx. at ear level. Otherwise, there is 
increased danger of injury in the event of an 
accident. Only remove the head restraint if no 
one will be sitting on the seat in question. Rein-
stall the head restraint before transporting any-
one in the seat. Otherwise, the protective func-
tion of the head restraint is unavailable.<
Front: height adjustment
1.Select head restraint, button1.
2.Adjust height, arrow2.
Removing
1.Raise head restraint all the way.
2.Pull out the head restraint all the way out 
with a firm tug. 

Controls
 47Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Installing
1.Press the button upward, refer to arrow2, 
for a maximum of approx. 10 seconds, but if 
possible, only until the humming sound 
changes, indicating that the mounting 
socket has reached the top.
2.Insert the head restraint and press down 
until you hear and feel it engage on both 
sides.
Front: tilt angle adjustment
Tilt the head restraint.
With the comfort seat, adjust the distance 
to the back of the head via the shoulder 
support adjusting button, refer to page45.<
Front: side extensions adjustment
You can fold the side extensions on the head 
restraint forward for increased lateral support in 
the resting position.
Front head restraints, active*
The comfort seats are equipped with an active 
head restraint.
In the event of a rear-end collision of corre-
sponding severity, the active head restraint 
reduces the distance from the head.Do not use seat or head restraint covers 
and do not hang objects, e.g. clothes 
hangers, on the head restraints or attach any 
accessories to the seat or head restraint. Other-
wise, the protective function of the active head 
restraint will be impaired and personal safety 
endangered.<
Rear: height adjustment
Mechanically
>To raise: pull.
>To lower: press the button, arrow1, and 
slide the head restraint downward.
Removing:
1.Pull the head restraint upward till it reaches 
the stop.
2.Press the button, arrow1, and pull the head 
restraint all the way out.
Electrically*
The head restraints at the outer sitting posi-
tions extend automatically whenever a passen-
ger in the rear seat fastens his safety belt. You 
can also adjust the height of the head restraint 
electrically. 

Adjusting
48 To prevent possible personal injury and 
property damage, always ensure that the 
area above the head restraints is clear and 
unobstructed before extending them upward.<
You can use the safety switch, refer to 
page40, to deactivate the height adjust-
ment of the head restraints.<
Removal and installation: the same as with the 
front head restraints.
Middle head restraint
Pull out the lowered head restraint until it 
engages before the center rear seat is 
occupied. Otherwise, the level of occupant pro-
tection can be reduced.<
Rear: side extension adjustment*
You can fold the side extensions on the head 
restraint forward for increased lateral support in 
the resting position.
Safety belts
To ensure that the safety systems con-
tinue to provide optimized protection, 
please follow the adjustment instructions on 
page43.<
Fasten safety belts on all occupied seats before 
every trip. Although airbags enhance safety by 
providing added protection, they are not a sub-
stitute for safety belts.
Fastening
Make sure you hear the latch plate engage in 
the belt buckle.
Releasing
1.Hold the belt firmly.
2.Press the red button in the belt buckle.
3.Guide the belt back into its reel.
The shoulder strap's anchorage point will be in 
the correct position for adults of every build if 
the seat is correctly adjusted, refer to page43.
The two rear safety belt buckles integrated into 
the rear seat are for passengers sitting on the 
left and right. The belt buckle embossed with 
the word CENTER is intended exclusively for 
use by passengers riding in the center position.
Safety belt reminder for front seats
The indicator lamp flashes or lights up. 
In addition, a signal sounds. Please 
make sure that the safety belts are 
positioned correctly.
The safety belt reminder is active at speeds 
above approx. 5 mph/8 km/h. It can also be acti-
vated if objects are placed on the passenger's 
seat. 

Transporting children safely
54
Transporting children safely
The right place for children
Do not leave children unattended in the 
vehicle; otherwise, they could endanger 
themselves and other persons, e.g. by opening 
the doors.<
Children always in the rear
Accident research shows that the safest place 
for children is in the back seat.
Children younger than 13 years of age or 
with a height under 5 ft/150 cm may only 
be transported in the rear in child restraint sys-
tems which correspond to the age, weight and 
height of the child. Otherwise, there is an 
increased danger of injury in an accident.<
Children 13 years of age or older must wear a 
safety belt as soon as a suitable child restraint 
system can no longer be used due to their age, 
size, and weight.
Exception for front passenger seat
Should it be necessary to use a child 
restraint system on the front passenger 
seat, the front, knee and side airbag on the front 
passenger side must be deactivated. Other-
wise, there is an increased risk of injury for the 
child if the airbags are triggered, even with a 
child restraint system. <
More information on Automatic deactivation of 
front passenger airbags, refer to page95.
Installing child restraint 
systems
Follow the child restraint system manu-
facturer's instructions when selecting, 
installing and using child restraint systems. 
Otherwise the protective effect may be dimin-
ished.<
In the front passenger seat
Before installing a child restraint system 
in the front passenger seat, make sure 
that the front, knee, and side airbags on the 
passenger side are deactivated. Otherwise, 
there is an increased risk of injury when the air-
bags are triggered.<
Backrest width*
The passenger seat backrest width set-
ting must be open all the way. After 
installing the child's seat, no memory position 
may be called up; otherwise, the stability of the 
child's seat on the front passenger seat is 
reduced.<
1.Open backrest width completely, refer to 
Front comfort seat adjustment on page44.
2.Mount child's seat.
Child seat security
All rear safety belts and the safety belt for the 
front passenger can be locked against pulling 
out to secure child restraint systems.
Locking safety belt
1.Secure the child restraint system with the 
belt.
2.Pull out the belt webbing completely.
3.Allow the belt webbing to be pulled in and 
pull taut against the child restraint system. 
The safety belt is locked. 

Reference 239
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
H
Handbrake, refer to Parking 
brake58
– Automatic Hold59
– manual operation58
Hands-free system179
Hazard warning flashers15
"HD", High Definition 
Radio162
Head airbags95
Headlamp control, 
automatic100
Headlamp flasher65
– indicator lamp13
Headlamps100
– care, refer to Caring for your 
vehicle brochure
– cleaning, refer to Wiper 
system65
– replacing bulbs213
Head light, refer to Adaptive 
Head Light100
Headphones22
Head restraints46
– front head restraints, 
active47
– installation, front47
– removal, front46
– sitting safely43
Heating103
– exterior mirrors51
– mirrors51
– rear window, refer to Rear 
window defroster107
– residual heat106
– seats49
– steering wheel52
– when parked, refer to 
Residual heat106
– windshield, refer to 
Defrosting windows and 
removing condensation106
– windshield washer 
nozzles66
Heating and ventilation103Heavy cargo, refer to Stowing 
cargo124
Height, refer to 
Dimensions227
Height adjustment
– seats44
– steering wheel51
"Help"
– assistance window21
– menu guidance19
"Help text", assistance 
window21
Help text on Control 
Display21
"Hide map icons", 
navigation137
"high", automatic climate 
control105
High beams101
– headlamp flasher101
– indicator lamp11
High Definition Radio162
Hills123
Holder for cups115
Home address
– selecting141
– storing140
Hood207
Horn11
Hotel function, refer to 
Locking separately35
Hot exhaust system122
Hour signal activation85
"House number", 
navigation134
Hydraulic brake assistant, 
refer to Brake assistant87
Hydroplaning123
I
ID3 tag, refer to Displaying 
track information167
iDrive16
– assistance window20
– automatic climate 
control104
– changing date and time84
– changing language84
– changing settings84
– changing units of measure 
and display format84
– confirming selection or 
entry19
– controller16
– controls16
– displays, menus17
– menus17
– rear seat screen21
– selecting menu item19
– setting brightness85
– showing help text21
– start menu18
– status lines20
– symbols19
Ignition key30
Ignition lock57
Illuminated vanity mirror51
Imitation leather, refer to 
Caring for your vehicle 
brochure
"Indep. ventil.", automatic 
climate control109
Indicator/warning lamps13
– airbags96
– alarm system37
– DSC88
– DTC88
– Flat Tire Monitor91
– fog lamps101
– safety belt warning48
– Tire Pressure Monitor93
Individually programmable 
buttons11,52
Individual settings, refer to 
Key Memory31