eco MERCEDES-BENZ S CLASS 2017 Service Manual

Before opening or closing the side windows, a
check is carried out to see whether a valid
SmartKey is in the vehicle. The check is carried
out if you use the start/stop button instead of a
SmartKey in the ignition and you press or pull a
button while the engine is switched off. This is
carried out by means of a brief radio connection
between the vehicle and the SmartKey.
Information on opening and closing the roller
sunblinds on the rear side windows
( Y
page 293).
Convenience opening
General notes If the SmartKey is in close proximity to the vehi-
cle, the convenience opening function is availa-
ble.
You can ventilate the vehicle before you start
driving.
To do this, the SmartKey is used to carry out the
following functions simultaneously: R
unlock the vehicle R
open the side windows R
open the panorama roof with power tilt/slid-
ing panel and the roller sunblinds R
switch on the seat ventilation for the driver's
seat
The "convenience opening" feature is also avail-
able when the vehicle is unlocked.
Convenience opening X
Press and hold the 6 button until the side
windows and the panorama sunroof are in the
desired position.
If the roller sunblinds of the panorama roof
with power tilt/sliding panel are closed, the
roller sunblinds are opened first. X
Keep the 6 button pressed until the pan-
orama roof with power tilt/sliding panel is in
the desired position. X
To interrupt convenience opening: release
the 6 button. Convenience closing feature
Important safety notes
G WARNING
When the convenience closing feature is oper-
ating, parts of the body could become trapped
in the closing area of the side window and the
sliding sunroof. There is a risk of injury.
Observe the complete closing procedure
when the convenience closing feature is oper-
ating. Make sure that no body parts are in
close proximity during the closing procedure.
When you lock the vehicle, you can simultane-
ously: R
close the side windows R
close the panorama roof with power tilt/slid-
ing panel
On vehicles with a panorama roof with power
tilt/sliding panel, you can then close the roller
sunblinds.
i Notes on the automatic reversing feature
for: R
the side window ( Y
page 91)R
the panorama roof with power tilt/sliding
panel ( Y
page 95) R
the roller sunblinds ( Y
page 96)
Using the SmartKey X
Press and hold the 7 button until the side
windows and the panorama roof with power
tilt/sliding panel are fully closed. X
Make sure that all the side windows and the
panorama roof with power tilt/sliding panel
are closed. X
On vehicles with a panorama roof with
power tilt/sliding panel: press and hold the
7 button again until the roller sunblinds of
the panorama roof with power tilt/sliding
panel close. X
To interrupt convenience closing: release
the 7 button.
Using KEYLESS-GO
The SmartKey must be outside the vehicle. All
the doors must be closed.92
Side windows
Opening and closing

X
Touch recessed sensor surface C on the
door handle until the side windows and the
panorama roof with power tilt/sliding panel
are fully closed.
i Make sure you only touch recessed sensor
surface C .X
Make sure that all the side windows and the
panorama roof with power tilt/sliding panel
are closed. X
Vehicles with a panorama roof with
power tilt/sliding panel: touch recessed
sensor surface C on the door handle again
until the roller sunblinds of the panorama roof
with power tilt/sliding panel close. X
To interrupt convenience closing: release
recessed sensor surface C on the door han-
dle. Resetting the side windows If a side window can no longer be closed fully,
you must reset it. X
Close all the doors. X
Turn the SmartKey to position 1 or 2 in the
ignition lock. X
Pull the corresponding switch on the door
control panel until the side window is com-
pletely closed ( Y
page 91). X
Hold the switch for an additional second.
If the side window opens again slightly: X
Immediately pull the corresponding switch on
the door control panel until the side window is
completely closed ( Y
page 91).X
Hold the switch for an additional second. X
If the respective side window remains closed
after the button is released, then it has been
set correctly. If this is not the case, repeat the
steps above.
Problems with the side windows
G WARNING
If you close a side window again immediately after it has been blocked or reset, the side window
closes with increased or maximum force. The reversing feature is then not active. Parts of the
body could be trapped in the closing area in the process. This poses an increased risk of injury or
even fatal injury.
Make sure that no parts of the body are in the closing area. To stop the closing process, release
the switch or push the switch again to reopen the side window. Side windows 93
Opening and closing Z

Problem
Possible causes/consequences and P Solutions
A side window cannot be
closed because it is
blocked by objects, e.g.
leaves in the window
guide. X
Remove the objects. X
Close the side window.
A side window cannot be
closed and you cannot
see the cause. If a side window is obstructed during closing and reopens again
slightly: X
Immediately after the window blocks, pull the corresponding switch
again until the side window has closed.
The side window is closed with increased force.
If a side window is obstructed again during closing and reopens again
slightly: X
Immediately after the window blocks, pull the corresponding switch
again until the side window has closed.
The sliding sunroof is closed without the automatic reversing fea-
ture.
Panorama roof with power tilt/sliding
panel
Important safety notes In the following section, the term "sliding sun-
roof" refers to the panorama roof with power
tilt/sliding panel.
G WARNING
While opening and closing the sliding sunroof,
body parts in close proximity could become
trapped. There is a risk of injury.
Make sure that no body parts are in close
proximity during the opening and closing pro-
cedures.
If somebody becomes trapped: R
release the switch immediately, or R
during automatic operation, push the
switch briefly in any direction
The opening or closing procedure will be stop-
ped.
G WARNING
If children operate the sliding sunroof they
could become trapped, particularly if they are
left unsupervised. There is a risk of injury. When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
G WARNING
At high speeds the raised sliding sunroof auto-
matically lowers slightly at the rear. This could
trap you or other persons. There is a risk of
injury. Make sure that nobody reaches into
the sweep of the sliding sunroof whilst the
vehicle is in motion.
If somebody becomes trapped, immediately
push the sliding sunroof switch up or pull it
back. The sliding sunroof raises at the rear.
! Only open the sliding sunroof if it is free of
snow and ice. Otherwise, malfunctions may
occur.
Do not allow anything to protrude from the
sliding sunroof. Otherwise, the seals could be
damaged.
! The weather can change abruptly. It could
start to rain or snow. Make sure that the slid-
ing sunroof is closed when you leave the vehi-
cle. The vehicle electronics can be damaged if
water enters the vehicle interior.
! When the sliding sunroof is open, water can
get into the vehicle and cause damage. The94
Panorama roof with power tilt/sliding panel
Opening and closing

vehicle electronics can be damaged if water
enters the vehicle interior. Only clean the slid-
ing sunroof when it is closed.
Resonance noises can occur in addition to the
usual airflow noises when the sliding sunroof is
open. They are caused by minor pressure fluc-
tuations in the vehicle interior. Change the posi-
tion of the sliding sunroof or open a side window
slightly to reduce or eliminate these noises.
Sliding sunroof reversing feature The sliding sunroof is equipped with an auto-
matic reversing feature. If a solid object blocks
or restricts the sliding sunroof during the closing
process, the sliding sunroof opens again auto-
matically. The automatic reversing feature is
only an aid and is no substitute for your attention
when closing the sliding roof.
G WARNING
The reversing feature does not react: R
to soft, light and thin objects, e.g. small fin-
gers R
over the last 1/6 in (4 mm) of the closing
movement R
during resetting R
when closing the sliding sunroof again man-
ually immediately after automatic reversing
This means that the reversing feature cannot
prevent someone being trapped in these sit-
uations. There is a risk of injury.
Make sure that no body parts are in close
proximity during the closing procedure.
If somebody becomes trapped: R
release the switch immediately, or R
press the switch in any direction during the
automatic closing process
The closing process is stopped. Operating the sliding sunroof
Opening and closing
C
To raise D
To open

and R
the Start/Stop button is used instead of the
SmartKey in the ignition lock
and R
the engine is not running
This is carried out by means of a brief radio con-
nection between the vehicle and the SmartKey.
Rain-closing feature The raised sliding sunroof automatically lowers
at the rear when driving if it starts to rain. The
sliding sunroof is lowered depending on: R
the road speed and R
the intensity of the rain
You can manually cancel the automatic closing
procedure. Press or pull the W switch in any
direction.
To raise the sliding sunroof again, press the
W switch in direction C . The rain-closing
feature remains activated.
Operating the roller sunblinds for the
sliding sunroof
Important safety notes
G WARNING
Parts of the body could become trapped
between the roller sunblind and frame or slid-
ing sunroof during automatic opening or clos-
ing. There is a risk of injury.
When opening or closing, make sure that no
body parts are in the sweep of the roller sun-
blind.
If somebody becomes trapped: R
release the switch immediately, or R
during automatic operation, push the
switch briefly in any direction
The opening or closing procedure will be stop-
ped.
The roller sunblinds shield the vehicle interior
from sunlight. The front roller sunblind can only
be opened and closed when the sliding sunroof
is closed. Roller sunblind reversing feature The roller sunblinds are equipped with an auto-
matic reversing feature. If a solid object blocks
or restricts a roller sunblind during the closing
process, the roller sunblind opens again auto-
matically. The automatic reversing feature is
only an aid and is not a substitute for your atten-
tion when closing the roller sunblinds.
G WARNING
The reversing feature does not react in par-
ticular to soft, light and thin objects, e.g. small
fingers. This means that the reversing feature
cannot prevent someone being trapped in
these situations. There is a risk of injury.
When closing the roller sunblind, make sure
that no body parts are in the sweep area.
If somebody becomes trapped: R
release the switch immediately, or R
press the switch in any direction during the
automatic closing process
The closing process is stopped.
Opening and closing the front roller sun-
blind
The front roller sunblind can only be closed
when the sliding sunroof is closed. X
Turn the SmartKey to position 1 or 2 in the
ignition lock. X
Press the W switch in direction C .
The front roller sunblind opens, then the slid-
ing roof is raised. X
Pull the W switch in direction D .
The front roller sunblind opens. X
Pull the W switch in direction

The MAGIC SKY CONTROL voltage transformer
is stamped with a high-voltage symbol, warning
you about the high voltage. The electric cables
of the high-voltage section are color orange.
Operating MAGIC SKY CONTROL from
the front X
Turn the SmartKey to position 1 or 2 in the
ignition lock.
MAGIC SKY CONTROL switches to the status
it was set to before the engine was switched
off. X
To change the degree of transparency:
press button C .
If the rear MAGIC SKY CONTROL element is in a
different state than the front element, the
degree of transparency will change only in the
front element. Both elements will then be in the
same state and any further changes will again
occur synchronously.
At sub-zero temperatures, the change is slower
and uneven. The entire process may take some
time.
Operating the rear MAGIC SKY CON-
TROL element from the rear X
To change the degree of transparency
when the roller sunblind is fully opened:
press switch C . X
To change the degree of transparency
when the roller sunblind is fully closed:
pull switch C .
The degree of transparency will change only
after the roller sunblind is opened.
If the rear roller sunblind closes when the rear
MAGIC SKY CONTROL element is not tinted, this
tints automatically.
Resetting the sliding sunroof and the
roller sunblind
Resetting the sliding sunroof or the
front roller sunblinds
Reset the sliding sunroof or the front roller sun-
blind if the sliding sunroof or the front roller
sunblind does not move smoothly. X
Turn the SmartKey to position 1 or 2 in the
ignition lock. X
Pull the W switch to the point of resistance
in the direction of arrow C until the sliding
sunroof is fully closed. X
Keep the W switch pulled for an additional
second. X
Pull the W switch in the direction of
arrow C until the front roller sunblind is
closed. X
Keep the W switch pulled for an additional
second. X
Make sure that the sliding sunroof and the
front roller sunblind can be fully opened
again. X
If this is not the case, repeat the steps above
again.98
Panorama roof with power tilt/sliding panel
Opening and closing

Resetting the rear sunblind X
Turn the SmartKey to position 1 or 2 in the
ignition lock. X
Pull switch C repeatedly until the rear roller
sunblind is fully closed. X
Keep switch C pulled for an additional sec-
ond. X
Make sure that the rear roller sunblind can be
opened fully again. X
If this is not the case, repeat the steps above
again.
Problems with the sliding sunroof
G WARNING
If you close the sliding sunroof again immediately after it has been blocked or reset, the sliding
sunroof closes with increased or maximum force. The reversing feature is then not active. Parts
of the body could be trapped in the closing area in the process. This poses an increased risk of
injury or even fatal injury.
Make sure that no parts of the body are in the closing area.
If somebody becomes trapped: R
release the switch immediately, or R
press the switch in any direction during the automatic closing process
The closing process is stopped.
! If the sliding sunroof still cannot be opened or closed as a result of a malfunction, contact a
qualified specialist workshop.
Problem
Possible causes/consequences and P Solutions
The sliding sunroof can-
not be closed and you
cannot see the cause. If the sliding sunroof is obstructed during closing and reopens again
slightly: X
Immediately after it blocks, pull the W switch down again to the
point of resistance until the sliding sunroof is closed.
The sliding sunroof is closed with increased force.
If the sliding sunroof is obstructed again during closing and then
reopens slightly: X
Immediately after it blocks, pull the W switch down again to the
point of resistance until the sliding sunroof is closed.
The sliding sunroof is closed without the automatic reversing fea-
ture.Panorama roof with power tilt/sliding panel 99
Opening and closing Z

Always drive with the head restraints instal-
led. Before driving off, make sure for every
vehicle occupant that the center of the head
restraint supports the back of the head at
about eye level.
Do not rotate the head restraints of the front and
rear seats. Otherwise, you cannot adjust the
height and angle of the head restraints to the
correct position.
Using the fore-and-aft adjustment, adjust the
head restraint so that it is as close as possible to
your head.
G WARNING
You could lose control of your vehicle if you do
the following while driving: R
adjust the driver's seat, head restraint,
steering wheel or mirrors R
fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine.
G WARNING
If you adjust the seat height carelessly, you or
other vehicle occupants could be trapped and
thereby injured. Children in particular could
accidentally press the electrical seat adjust-
ment buttons and become trapped. There is a
risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem.
G WARNING
The seat belt does not offer the intended level
of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing or in the event of an accident, you could
slide underneath the seat belt and sustain
abdomen or neck injuries, for example. This
poses an increased risk of injury or even fatal
injury. Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder.
! 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 heat-
ing 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 passen-
gers, if possible. R
when the seat heating is in operation, do
not cover the seats with insulating materi-
als, e.g. blankets, coats, bags, seat covers,
child seats or booster seats.
! Make sure that there are no objects in the
footwell under or behind the seats when mov-
ing the seats back. There is a risk that the
seats and/or the objects could be damaged.
Adjusting the seats
Vehicles with standard head restraints
or luxury head restraints
C
Head restraint height
D
Head restraint height

! Do not move the front-passenger seat fully
forwards if there are objects in the parcel net
in the front-passenger footwell. The objects
could otherwise be damaged.
Adjusting the front-passenger seat
The power supply or the ignition must be
switched on so that the front-passenger seat
can be selected ( Y
page 146).X
To select the front-passenger seat: press
button C repeatedly until the indicator lamp
in the button lights up.
When the indicator lamp in button C lights up,
for the front-passenger seat you can adjust: R
adjust the seat ( Y
page 101)R
seat heating ( Y
page 112)R
seat ventilation ( Y
page 113)R
the memory function to call up or save set-
tings ( Y
page 120).
Adjusting the front-passenger seat
from the rear
Important safety notes
G WARNING
Children could become trapped if they adjust
the seats, particularly when unattended.
There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The seats can still be adjusted when the power
supply is switched off. G WARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the
seat guide rail. There is a risk of injury.
Make sure when adjusting a seat that no one
has any body parts in the sweep of the seat.
Observe the safety notes on "Air bags"
( Y
page 48) and "Children in the vehicle"
( Y
page 59).
G WARNING
The front-air bags for could also injure the
vehicle occupants in the front If the front
seats are positioned too close to the dash-
board or steering wheel. This poses an
increased risk of injury or even fatal injury.
Always adjust the front seats so that they are
as far from the front air bags as possible. Also
observe the notes on the correct adjustment
of the seats.
! Do not move the front-passenger seat fully
forwards if there are objects in the parcel net
in the front-passenger footwell. The objects
could otherwise be damaged.
i You can use the rear-compartment override
button to disable the setting of the front-
passenger seat from the rear ( Y
page 65).
Adjusting the rear seat
C
Selects rear-compartment seat
D
Head restraint height

The supplementary cushion is in the vehicle.
The supplementary cushion is attached to the
head restraint by three press studs.
Attaching the supplementary cushion: X
Position the head restraint as far forwards as
possible ( Y
page 102).X
Hold supplementary cushion D against the
head restraint and push press studs C into
the counterpieces.
Removing the supplementary cushion: X
Position the head restraint as far forwards as
possible ( Y
page 102).X
Release press studs C and remove supple-
mentary cushion D .
Adjusting the rear center head
restraints
Retracting and extending electrically
X
Press and hold button C until the head
restraint has fully extended or retracted. Folding into position mechanically X
Pull the head restraint up until it engages.
Adjusting the active multicontour
seat You can adjust the active multicontour seats for
the driver and front passenger via the multime-
dia system; see the Digital Operator's Manual.
The driving dynamics settings are only activated
if: R
the seat is occupied R
the seat belt is fastened
Adjusting the active multicontour
seat in the rear compartment You can adjust the multicontour seats for the
outer seats in the rear using the remote control;
see the Digital Operator's Manual.
Adjusting the 4-way lumbar support You can adjust the 4-way lumbar support via the
multimedia system (see the Digital Operator's
Manual).
Switching the seat heating on/off
Switching on/off
G WARNING
Repeatedly switching on the seat heating can
cause the seat cushion and backrest pads to
become very hot. The health of persons with112
Seats
Seats, steering wheel and mirrors