Page 97 of 376
Useful information ..............................
96
Correcting the driver's seat posi-
tion ....................................................... 96
Seats .................................................... 97
Steering wheel .................................. 103
Mirrors ............................................... 105
Memory function .............................. 107 95Seats, steering wheel and mirrors
Page 98 of 376

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific 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.
i Read the information on qualified
specialist workshops: ( Y page 24).Correcting the driver's seat position
X
Observe the safety guidelines on seat
adjustment ( Y page 97).
X Make sure that seat = is adjusted
properly.
Electrical seat adjustment ( Y page 98)
When adjusting the seat, make sure that:
R you
are as far away from the driver's air bag
as possible.
R you are sitting in a normal upright position.
R you can fasten the seat belt properly. R
you
have moved the backrest to an almost
vertical position.
R you have set the seat cushion angle so that
your thighs are gently supported.
R you can depress the pedals properly.
X Check whether the head restraint is
adjusted properly.
When doing so, make sure that you have
adjusted
the head restraint so that the back
of your head is supported at eye level by
the center of the head restraint.
X Observe the safety guidelines on steering
wheel adjustment ( Y page 103).
X Make sure that steering wheel : is
adjusted properly.
Adjusting the steering wheel electrically
(Y page 103)
When adjusting the steering wheel, make
sure that:
R you can hold the steering wheel with your
arms slightly bent.
R you can move your legs freely.
R you can see all the displays in the
instrument cluster clearly.
X Observe the safety guidelines for seat belts
(Y page 53).
X Check whether you have fastened seat
belt ; properly
(Y page 55).
The seat belt should:
R fit snugly across your body
R be routed across the middle of your
shoulder
R be
routed in your pelvic area across the hip
joints
X Before starting off, adjust the rear-view
mirror and the exterior mirrors in such a
way
that you have a good view of road and
traffic conditions (Y page 105).
X Vehicles with a memory function: save
the
seat, steering wheel and exterior mirror
settings with the memory function
(Y page 107). 96
Correcting the driver's seat position
Seats, steering wheel and mirrors
Page 99 of 376

Seats
Important safety notes
G
WARNING
The seats can still be adjusted when there is
no key in the ignition lock. For this reason,
children should never be left unsupervised in
the vehicle. They could otherwise become
trapped when adjusting the seat. G
WARNING
Make sure that the back of your head is
supported at eye level by the central area of
the head restraint. If your head is not
supported
correctly by the head restraint, you
could suffer a severe neck injury in the event
of an accident. Never drive if the head
restraints are not engaged and set correctly. G
WARNING
In order to avoid possible loss of vehicle
control, all seat, head restraint, steering
wheel and rear view mirror adjustments, as
well as fastening of seat belts, must be done
before setting the vehicle in motion. G
WARNING
Do not adjust the driver's seat while driving.
Adjusting the seat while driving could cause
the driver to lose control of the vehicle.
Never
travel in a moving vehicle with the seat
backrest in an excessively reclined position as
this can be dangerous. You could slide under
the seat belt in a collision. If you slide under
it, the seat belt would apply force at the
abdomen or neck. This could cause serious or
fatal injuries. The seat backrest and seat belts
provide the best restraint when the wearer is
in a position that is as upright as possible and
seat belts are properly positioned on the
body. G
WARNING
Your seat belt must be adjusted so that you
can correctly fasten your seat belt. Observe the following points:
R
adjust
the seat backrest until your arms are
slightly angled when holding the steering
wheel.
R adjust the seat to a comfortable seating
position that still allows you to reach the
accelerator/brake pedal safely. The
position should be as far back as possible
with the driver still able to operate the
controls properly.
R 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.
R never place hands under the seat or near
any moving parts while a seat is being
adjusted.
Failure to do so could result in an accident
and/or serious personal injury. G
WARNING
According to accident statistics, children are
safer when properly restrained on the rear
seats
than on the front-passenger seat. Thus,
we strongly recommend that children be
placed in the rear seat whenever possible.
Regardless of seating position, children 12
years old and under must be seated and
properly secured in an appropriately sized
child restraint system or booster seat
recommended for the size and weight of the
child. For additional information, see the
"Children in the vehicle" section.
A child's risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and/
or the child is not properly secured in the child
restraint.
! To avoid damage to the seats and the seat
heating, observe the following information:
R keep liquids from spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
R if the seat covers are damp or wet, do not
switch on the seat heating. The seat Seats
97
Seats, steering wheel and mirrors Z
Page 100 of 376

heating should also not be used to dry
the seats.
R clean the seat covers as recommended;
see the "Interior care" section.
R do not transport heavy loads on the
seats.
Do not place sharp objects on the
seat cushions, e.g. knives, nails or tools.
The seats should only be occupied by
passengers, if possible.
R when the seat heating is in operation, do
not cover the seats with insulating
materials, e.g. blankets, coats, bags,
seat covers, child seats or booster seats.
! To avoid damage to the seats and the seat
heating, observe the following information:
R keep liquids from spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
R if the seat covers are damp or wet, do not
switch on the seat heating. The seat
heating should also not be used to dry
the seats.
R clean the seat covers as recommended;
see "Interior care".
R do not transport heavy loads on the
seats. Do not place sharp objects on the
seat cushions, e.g. knives, nails or tools.
The seats should only be occupied by
passengers, if possible.
R when the seat heating is in operation, do
not cover the seats with insulating
materials, e.g. blankets, coats, bags,
seat covers, child seats or booster seats.
! Make sure that there are no objects in the
footwell or behind the seats when resetting
the seats. There is a risk that the seats
and/or the objects could be damaged.
i The head restraints in the front seats are
installed with the NECK-PRO system
(Y page 51). For this reason, it is not
possible to remove the head restraints
from the front seats.
For more information, contact a qualified
specialist workshop. i
Further related subjects:
R Rear
bench seat through-loading feature
(Y page 273) Adjusting the seats electrically
:
Head restraint height
; Seat cushion angle
= Seat height
? Seat fore-and-aft adjustment
A Backrest angle
i If PRE-SAFE ®
is triggered, the front-
passenger seat will be moved to a better
position if it was previously in an
unfavourable position.
i You can store the seat settings using the
memory function ( Y page 107).
i Vehicles with the through-loading
feature: if you fold down a rear seat
backrest, the respective front seat is
moved forwards slightly in order to avoid
contact. 98
Seats
Seats, steering wheel and mirrors
Page 101 of 376

Adjusting the head restraints
Adjusting the head restraints
electrically X
To adjust the head restraint height: slide
switch for head restraint adjustment : up
or down in the direction of the arrow.
Adjusting the luxury head restraints G
WARNING
When folding back the head restraint side
bolsters, do not put your hands between the
side bolster and the cushion holder. There is
a danger of becoming trapped. X
To adjust the side bolsters of the head
restraint: push or pull right and/or left-
hand side bolster : into the desired
position.
X To adjust the angle of the head
restraint:
push or pull the head restraint in
the direction of arrow ;. Rear seat head restraints Important safety notes
G
WARNING
For your protection, drive only with properly
positioned head restraints.
Adjust
the head restraints so that they are as
close as possible to your head. This will
reduce the potential for injury to the head and
neck in the event of an accident or similar
situation.
Whenever the rear seats are occupied, only
drive the vehicle with the head restraints
installed and engaged. Head restraints are
intended to help reduce injuries during an
accident. G
WARNING
Make sure that the rear seat head restraints
are engaged. Otherwise, their protective
function cannot be guaranteed.
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 could be severely or
even fatally injured.
Adjusting the rear seat head restraint
angle
X
Pull or push the top of the head restraint
until it is in the desired position. Seats
99
Seats, steering wheel and mirrors Z
Page 102 of 376

Removing and installing the rear seat
head restraints
G
WARNING
Occupants should only travel sitting on seats
which have the head restraints installed. This
reduces the risk of injury to occupants in the
event of an accident.
! Make sure that the rear window roller
sunblind has been retracted before the rear
head restraints are removed. You could
otherwise damage the roller sunblind.
X
To remove: pull the head restraint up to
the stop.
X Press release catch : and pull the head
restraint out of the guides.
X To re-install: insert the head restraint so
that the notches on the bar are on the left
when viewed in the direction of travel.
X Push the head restraint down until you hear
it engage in position. Adjusting the multicontour seat
The multicontour seat function is only
available on vehicles for Canada. :
To adjust the thigh cushion
; To adjust the backrest contour in the
lumbar region
= To adjust the backrest contour in the
upper back region
? To adjust the side bolsters of the seat
backrest
You can adjust the contour of the front seats
individually
so as to provide optimum support
for your back and sides.
X Make sure that the SmartKey is in position
2 in the ignition lock. Adjusting the active multicontour
seat
Overview :
To adjust the seat cushion length
; To switch the dynamic function on or off
= To adjust the side bolsters of the seat
backrest
? To switch the massage function on or off100
Seats
Seats, steering wheel and mirrors
Page 103 of 376

A
To adjust the contour of the backrest to
increase/decrease support
B To adjust the height/depth of the
backrest contour
The active multicontour seat on the driver's
side automatically adapts the sides of the
backrest
to your current driving style. You can
adjust the contour of the seats individually so
as to provide optimum support for your back
and sides.
Dynamic function The dynamic function adjusts the air cushions
in the side bolsters of the seat backrests to
ensure ideal lateral support at all times.
X
To switch on: press button ; once or
twice until the desired level is set.
One or two indicator lamps in button ;
light up.
X To switch off: press button ; repeatedly
until
all indicator lamps in button ; go out.
You can choose between two different levels. Level 1 (one
indicator lamp) Standard setting:
slightly increased
lateral support and
slow build-up of air
pressure in the side
bolsters of the seat
backrest.
Level 2 (two
indicator lamps) Sport setting:
increased lateral
support and fast
build-up of pressure
in the side bolsters
of
the seat backrest. Massage function (PULSE)
The massage function helps you to prevent
muscle tension on long journeys. You can
choose between two levels. X
To switch on: press button ? once or
twice until the desired level is set.
One or two indicator lamps in button ?
light up. The air cushions in the lumbar
region vibrate for approximately
20 minutes. Adjusting the 4-way lumbar support
:
To raise the backrest contour
; To soften the backrest contour
= To lower the backrest contour
? To harden the backrest contour
You can adjust the contour of the front seat
backrests individually to provide optimum
support for your back. Switching the seat heating on/off
Activating/deactivating G
WARNING
Repeatedly setting the seat heating to level
3 may result in excessive seat temperatures.
The health of passengers that have limited
temperature sensitivity or a limited ability to
react to excessively high temperatures may
be affected or they may even suffer burn-like
injuries. Therefore, do not use seat heating
level 3 repeatedly. Seats
101
Seats, steering wheel and mirrors Z
Page 104 of 376

Driver's and front-passenger seat
The three red indicator lamps in the button
indicate the heating level you have selected.
The system automatically switches down
from level 3 to level 2 after approximately
eight minutes.
The system automatically switches down
from
level 2 to level 1 after approximately ten
minutes.
The system automatically switches off
approximately 20 minutes after it is set to
level 1.
X Make sure that the SmartKey is in position
1 or 2 in the ignition lock.
X To switch on: press button : repeatedly
until the desired heating level is set.
X To switch off: press button : repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
heating may switch off.
Problems with the seat heating The seat heating has switched off
prematurely or cannot be switched on. The
vehicle's electrical system voltage is too low
because too many electrical consumers are
switched on.
X
Switch off electrical consumers that you do
not need, such as the rear window
defroster or interior lighting. Switching the seat ventilation on/off
Activating/deactivating The three blue indicator lamps in the buttons
indicate the ventilation level you have
selected.
X
Make sure that the SmartKey is in position
2 in the ignition lock.
X To switch on: press button : repeatedly
until the desired ventilation level is set.
X To switch off: press button : repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
ventilation may switch off.
i You can open the side windows and the
sliding sunroof using the "Convenience
opening" feature ( Y page 88). The seat
ventilation of the driver's seat
automatically
switches to the highest level.
Problems with the seat ventilation The seat ventilation has switched off
prematurely or cannot be switched on. The
vehicle's electrical system voltage is too low
because too many electrical consumers are
switched on.
X
Switch off electrical consumers that you do
not need, such as the rear window
defroster or interior lighting.102
Seats
Seats, steering wheel and mirrors