light MERCEDES-BENZ S-Class 2013 W221 Service Manual

X
Make sure that the rear roller sunblind can
be opened fully again (Y page 101).
X If this is not the case, repeat the steps
above again. Problems with the sliding sunroof
Your vehicle may be equipped with a sliding
sunroof or a panorama roof with power tilt/
sliding panel. In the following section, the
term "sliding sunroof" refers to both types of
sliding sunroof.
Problem: the sunroof cannot be closed
and you cannot see the cause. G
WARNING
You could be severely or even fatally injured
when closing the sliding sunroof with
increased closing force or if the anti-
entrapmentf eature is deactivated. Make sure
that nobody can become trapped when
closing the sliding sunroof.
If the sliding sunroof is obstructed during
closing and reopens again slightly:
X Immediately after the sliding sunroof
blocks, pull the 0003switch in the
overhead control panel down to the point
of resistance and hold it until the sliding
sunroof is closed.
The sliding sunroof is closed with increased
force.
If the sliding sunroof is obstructed again
during closing and reopens again slightly:
X Immediately after the sliding sunroof
blocks, pull the 0003switch in the
overhead control panel down to the point
of resistance and hold it until the sliding
sunroof is closed.
The sliding sunroof is closed without the
anti-entrapment feature. G
WARNING
Pressing and holding the sliding sunroof
switch to close the sliding sunroof
immediately after it had been blocked two times will cause the sliding sunroof to close
without the anti-entrapment feature for as
long as you hold the switch.
! If the sliding sunroof still cannot be
opened or closed as a result of a
malfunction, contact a qualified specialist
workshop. Sliding sunroof
103Opening/closing Z

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 Please read the information on qualified
specialist workshops (Y page 31).Correcting the driver's seat position
Observe the safety guidelines on seat
adjustment (Y
page 107).
X Make sure that seat 0026is adjusted
properly.
Electrical seat adjustment (Y page 108)
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 (Y page 110).
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.
Observe the safety guidelines on steering
wheel adjustment (Y page 114).
X Make sure that steering wheel 0002is
adjusted properly.
Adjusting the steering wheel electrically
(Y page 114)
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
instrumen tcluste rclearly.
Observe the safety guidelines for seat belts
(Y page 61).
X Check whether you have fastened seat
belt 0003properly (Y page 63).
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
(Y page 116) in such a way that you have
a good view of road and traffic conditions.
X Vehicles with a memory function: save
the seat, steering wheel and exterior mirror
settings (Y page 118).106
Correcting the driver's seat positionSeats, steering wheel and mirrors

Seats
Important safety notes
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.T his 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
The electrically adjustable seats can be
operated at any time. Therefore, do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Achild's
unsupervised access to a vehicle 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.
Ac hild'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. G
WARNING
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 potential for
injury to the head and neck in the event of an
accident or similar situation. Seats
107Seats, steering wheel and mirrors
Z

You can use the override button to disable
this function (Y
page 71).
The button is located in the rear door on the
front-passenge rside. 0002
To selec tthe front-passenger seat or rear-
compartment seat
0003 Seat height
0026 Head restraint height
0025 Backrest angle
0023 Seat fore-and-aft adjustment
X To selectt he front-passenge rseat:
press button 0002.
The front-passenger seat is selected if the
indicator lamp in the button lights up.
X Adjust the front-passenger seat with
buttons 0003,0026,0025and 0023.
X To select the rear-compartment seat:
press button 0002.
The rear-compartment seat is selected
again. Adjusting the head restraints
Adjusting the head restraint height
electrically X
To adjust th ehead restraint height: slide
the switch for head restrain tadjustment
(Y page 108 )up or down in the direction of
the arrow. Adjusting the NECK-PRO head
restraints Adjusting
X
Pull or push the bottom of NECK-PRO head
restraint 0002.
Resetting
The NECK-PRO head restraints are moved
forwards in the event of a rear collision in the
direction of travel and have to be reset
afterwards (Y page 60).
Adjusting NECK-PRO luxury head
restraints Adjusting
G
WARNING
When folding back the side cushions, do not
hold the area between the side cushion and
the cushion holder. There is a danger of
becoming trapped. You can adjust side bolsters
0002of the NECK-
PRO luxury head restraints individually. 110
SeatsSeats, steering wheel and mirrors

You can adjust side bolsters
0002of the luxury
head restraint individually.
X To adjust the side bolsters of the head
restraint: push or pull side bolsters 0002into
the desired position.
X To adjust the head restraint angle: hold
the head restraint by the upper edge and
slide it forwards or back in the direction of
arrow 0003. Adjusting the multicontour seat
You can adjust the multicontour seat using
COMAND (Y page 274). Adjusting the multicontour seat in the
rear compartment
You can use the buttons on the center
console to adjust the multicontour seats for
the outer seats in the rear compartment. X
To select a rear-compartment seat: push
or pull rocker switch 0002or0014 forwards or
backwards.
The indicator lamp in the selected button
lights up briefly.
X To adjust the side bolsters of the seat
backrest: push or pull rocker switch 0024
forwards or backwards.
X To adjust the backrest contour: push or
pull rocker switch 0023forwards or
backwards.
X To adjust the position of the backrest
contour: push or pull rocker switch 0025
forwards or backwards.
X To activate/deactivate the gentle
massage function: push or pull rocker
switch 0026forwards or backwards.
X To activate/deactivate the strong
massage function: push or pull rocker
switch 0003forwards or backwards. Adjusting the active multicontour
seat
You can adjust the active multicontour seat
using COMAND (Y page 276).
i If PRE-SAFE ®
has been activated, the air
pressure in the air chambers of the
multicontour seat or active multicontour
seat is increased. These air chambers are
located in the side bolsters of the seat
cushio nand backrest. Adjusting the lumbar support
You can adjus tthe lumbar support using
COMAND (Y page 274).112
SeatsSeats, steering wheel and mirrors

Switching the seat heating on/off
Switching on/off 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 3repeatedly.
The three red indicator lamps in the button
indicate the heating level you have selected.
i If the battery voltage is too low, the seat
heating may switch off. The system automatically switches down
from level
3to level 2after approximately
eight minutes.
The system automatically switches down
from level 2to level 1after 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
1or 2in the ignition lock.
X To switch on: press button0002repeatedly
until the desired heating level is set.
X To switch off: press button0002repeatedly
until all the indicator lamps go out. Problems with the seat heating The seat heating has switched itself off
prematurely. 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
Switching on/off The three blue indicator lamps in the buttons
indicate the ventilation level you have
selected.
i
If the battery voltage is too low, the seat
ventilation may switch off. X
Make sure that the SmartKey is in position
2in the ignition lock.
X To switch on: press button0002repeatedly
until the desired ventilation level is set.
i You can open the side windows and the
sliding sunroof using the "Convenience
opening" feature (Y page 96). The seat
ventilation of the driver's seat
automatically switches to the highest level.
X To switch off: press button0002repeatedly
until all the indicator lamps go out. Seats
113Seats, steering wheel and mirrors Z

Problems with the seat ventilation
The seat ventilation has switched off
prematurely. The vehicle's electrical system
voltage is too low because too many electrical
consumers are switched on.
X Switch off electrical consumers which you
do not need, such as the rear window
defroster or interior lighting. Steering wheel
Important safety notes
G
WARNING
Do not adjust the steering wheel while driving.
Adjusting the steering wheel while driving
could cause the driver to lose control of the
vehicle.
The electrical steering wheel adjustment
feature can be operated at any time.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. Achild's unsupervised access to a
vehicle could result in an accident and/or
serious personal injury. Adjusting the steering wheel
0002
To adjust the steering wheel position
(fore-and-aft adjustment)
0003 To adjust the steering wheel height i
Other topics:
R EASY-ENTRY/EXIT feature
(Y page 115)
R storing settings (Y page 118)
R operating the on-board computer
(Y page 375) Steering wheel heating
Switching on/off The steering-wheel heating heats the leather
areas of the steering wheel.
X
Make sure that the SmartKey is in position
2in the ignition lock.
X To switch on/off: turn the lever in the
direction of arrow 0002or0003.
Indicator lamp 0026lights up or goes out.
Vehicles without KEYLESS-GO: when you
remove the SmartKey from the ignition lock,
the steering wheel heating is deactivated.
Vehicles with KEYLESS-GO: when you switch
off the ignition and open the driver's door, the
steering wheel heating is deactivated.
i The steering wheel heating is deactivated
when the temperature in the vehicle
interior is higher than 86 ‡ (30 †).
i The steering wheel heating is switched off
automatically after about 24 minutes. 114
Steering wheelSeats, steering wheel and mirrors

Mirrors
Exterior mirrors
Adjusting the exterior mirrors G
WARNING
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 you rinterior
rear view mirror and glance over your
shoulde rbefore changing lanes.
The exterior mirrors are automatically heated
if the rear window defroster is switched on
and the outside temperature is low. X
Make sure that the SmartKey is in position
1or 2in the ignition lock.
X Press button 0003for the right-hand exterior
mirror or button 0026for the left-hand
exterior mirror.
The indicator lamp lights up in the button
that has been pressed.
X Press adjustment button 0002up, down, to
the left or right until you have adjusted the
exterior mirror to the correct position .You
should have a good overview of traffic
conditions. Folding the exterior mirrors in or out
electrically
X
Make sure that the SmartKey is in position
1or 2in the ignition lock.
X Briefly press button 0002.
Both exterior mirrors fold in or out.
i Make sure that the exterior mirrors are
always folded out fully while driving. They
could otherwise vibrate.
Folding the exterior mirrors in or out
automatically When the "Automatic mirror folding" function
is activated in COMAND (Y
page 266):
R the exterior mirrors fold in automatically as
soon as you lock the vehicle from the
outside.
R the exterior mirrors fold out again
automatically as soon as you unlock the
vehicle and then open the driver's or front-
passenger door.
i If the exterior mirrors have been folded in
manually, they do not fold out.
Exterior mirror out of position If an exterior mirror has been pushed out of
position, proceed as follows:116
MirrorsSeats, steering wheel and mirrors

X
Press the mirror-folding button
(Y page 116) repeatedly until you hear the
mirror engage in position.
The mirror housing is engaged again and
you can adjust the exterior mirrors as usual
(Y page 116). Automatic anti-glare mirrors
G
WARNING
If inciden tlight fro mheadlamps is prevented
from striking the sensor in the rear-view
mirror, for instance, by luggage piled too high
in the vehicle, the mirror's automatic anti-
glare function will not operate.
Incident light could then blind you. This may
distract you from the traffic conditions and,
as a result, you may cause an accident.
The rear-view mirror and the exterior mirror
on the driver's side automatically go into anti-
glare mode if the ignition is switched on and
inciden tlight fro mheadlamps strikes the
sensor in the rear-view mirror.
The mirrors do not go into anti-glare mode if
reverse gear is engaged or the interior lighting
is switched on. Parking position for the exterior
mirror on the front-passenger side
Setting and storing the parking position You can position the front-passenger side
exterior mirror in such a way that you can see
the rear wheel on that side as soon as you
engage reverse gear. You can store this
position. X
Make sure that the vehicle is stationary and
that the SmartKey is in position 2in the
ignition lock.
X Press button 0026for the exterior mirror on
the front-passenger side.
X Engage reverse gear.
The exterior mirror on the front-passenger
side moves to the preset parking position.
X Use adjustment button 0003to adjust the
exterior mirror .You should see the rear
wheel and the curb in the exterior mirror.
The parking position is stored.
i If you shift the transmission to another
position, the exterior mirror on the front-
passenger side returns to the driving
position.
i You can also store the parking position
using memory button M0002.
X Make sure that the SmartKey is in
position 2in the ignition lock.
X With the exterior mirror on the front-
passenger side activated, use
adjustment button 0003to adjust the
exterior mirror. You should see the
rear wheel and the curb in the exterior
mirror on the front-passenger side.
X Press memory button M0002 and one of
the arrows on adjustment button 0003
within three seconds.
The parking position is stored if the
exterior mirror does not move.
If the mirror moves out of position, repeat
the steps. Mirrors
117Seats, steering wheel and mirrors Z

Navi Audio Telephone Video Vehicle
Mode FM/AM radio Video DVD ECO
Map orientation Sat radio AUX Multicontour
seat/lumbar
settings
Point of interest
symbols on the map Disc Video off Rear window
blind
Traffi
csymbols on the
map Memory card EASY-ENTRY/
EXIT system
Text information on
map MUSIC
REGISTER Exterior
lighting
delayed
switch-off
000A
Topographical
map Media
Interface Interior
lighting
delayed
switch-off
000A
City view USB Ambient
lighting
000A
Freeway
information Rear 000A
Automatic
mirror fold-in
function 000A
Volume reduction AUX 000A
Locator
lighting SIRIUS service Audio off 000A
Automatic
locking Map version 000A
Interior
motion sensor 000A
Tow-away
alarm 000A
Trunk lid
opening height
restriction SPLITVIEW
SPLITVIEW allows you to simultaneously use
different COMAND functions on the front-
passenger side and on the driver's side.
Depending on the viewing angle of the display
(from the driver's seat or from the front-
passenger seat), you will see two different
displays.126
At
ag lanceCOMAND