2018 MERCEDES-BENZ C-CLASS SEDAN Owner's Manual

the sweep of the sliding sunroof whilst the
vehicle is in motion.
If somebody becomes trapped, immediately
pull back the sliding sunroof switch. The slid-
ing sunroof lifts during opening.
Sliding sunroof reversing feature
Your vehicle may be equipped with a sliding
sunroof or a panorama roof with power tilt/slid-
ing panel. In this section, the term "sliding sun-
roof" refers to both types of sliding sunroof.
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.
GWARNING
The reversing feature does not react:
Rto soft, light and thin objects, e.g. small fin-
gers
Rover the last 1/6 in (4 mm) of the closing
movement
Rduring resetting
Rwhen 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:
Rrelease the switch immediately, or
Rpress the switch in any direction during the
automatic closing process
The closing process is stopped.
Operating the sliding sunroof
Opening and closing
:To raise
;To open
=To close/lower
XTurn the SmartKey to position 1or2 in the
ignition lock.
XPress or pull the 3switch in the corre-
sponding direction.
If you press or pull the 3switch beyond the
pressure point, automatic operation is started in the corresponding direction. You can stop auto-
matic operation by pressing or pulling again.
When opening and raising the roof, automatic
operation is only available if the sliding sunroof
is in the closed position.
The sun protection cover automatically opens
along with the sliding sunroof. You can open or
close the sun protection cover manually when
the sliding sunroof is raised or closed.
You can continue to operate the sliding sunroof
after switching off the engine or removing the
SmartKey from the ignition lock. This function isavailable for up to five minutes or until the driv-
er's or front-passenger door is opened.
Resetting
!If the sliding sunroof still cannot be opened
or closed fully after resetting, contact a quali- fied specialist workshop.
Reset the sliding sunroof if it does not move
smoothly.
XTurn the SmartKey to position 1or2 in the
ignition lock.
XRaise the sliding sunroof fully at the rear
(Ypage 95).
Sliding sunroof95
Opening and closing
Z

XKeep the3switch pressed for another
second.
XMake sure that the sliding sunroof can be fully opened and closed again (Ypage 95).
XIf this is not the case, repeat the steps above.
Operating the panorama roof with
power tilt/sliding panel
Opening and closing
:To raise
;To open
=To close/lower
The panorama roof with power tilt/sliding panel
can only be operated when the roller sunblind is
open.
XTurn the SmartKey to position 1or2 in the
ignition lock.
XPress or pull the 3switch in the corre-
sponding direction.
If you press or pull the 3switch beyond the
pressure point, automatic operation is started in the corresponding direction. You can stop auto-
matic operation by pressing or pulling again.
If the panorama roof with power tilt/sliding
panel is raised at the rear, it automatically low-
ers slightly at higher speeds. The noise level in
the vehicle interior is reduced as a result. At low
speeds it raises again automatically.
You can also temporarily deactivate automatic
lowering. To do so, press the 3switch. The
panorama roof with power tilt/sliding panel rai-
ses again automatically.
You can continue to operate the panorama roof
with power tilt/sliding panel after you switch off the engine or remove the SmartKey. This func-
tion remains active for five minutes or until you
open a front door. When a roof carrier is mounted the panorama
roof with power tilt/sliding panel cannot be
opened. The panorama roof with power tilt/slid-
ing panel can still be raised to allow ventilation
of the vehicle interior. If the panorama roof with
power tilt/sliding panel makes contact with a
roof carrier approved by Mercedes-Benz, the
sunroof will lower slightly but remain raised at
the rear.
Rain-closing feature
The raised panorama roof with power tilt/sliding
panel automatically lowers when driving if it
starts to rain. The sliding sunroof is lowered
depending on:
Rthe road speed
Rthe intensity of the rain
You can manually cancel the automatic closing
procedure. Press or pull the 3switch in any
direction.
To raise the panorama roof with power tilt/slid- ing panel again, press the 3switch in direc-
tion :.
The rain-closing feature is then deactivated until
you:
Rpress or pull the 3switch in any direction
or
Rturn the SmartKey to another position in the
ignition lock (Ypage 136)
Operating the roller sunblinds for the
panorama roof with power tilt/sliding
panel
Important safety notes
GWARNING
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.
96Sliding sunroof
Opening and closing

If somebody becomes trapped:
Rrelease the switch immediately, or
Rduring 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 roller sunblinds can only be
opened and closed when the panorama roof
with power tilt/sliding panel 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. However, the automatic reversing
feature is only an aid and is not a substitute of
your attentiveness when closing the roller sun-
blind.
GWARNING
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:
Rrelease the switch immediately, or
Rpress the switch in any direction during the
automatic closing process
The closing process is stopped.
Opening and closing the roller sun-
blinds
:To open
;To open
=To close
You can only close the roller sunblinds when the
panorama roof with power tilt/sliding panel is
closed.
XTurn the SmartKey to position 1or2 in the
ignition lock.
XPress the 3switch in direction :.
Both roller sunblinds open, then the pano-
rama roof with power tilt/sliding panel is
raised.
XPull the 3switch in direction ;.
The sunblinds open.
XPull the 3switch in direction =.
The roller sunblinds close when the panorama
roof with power tilt/sliding panel is closed.
If you press or pull the 3switch beyond the
pressure point, automatic operation is started in the corresponding direction. You can stop auto-
matic operation by pressing or pulling again.
Resetting the panorama roof with
power tilt/sliding panel or the front
roller sunblind
!
If the panorama roof with power tilt/sliding
panel and the roller sunblinds cannot be fully
opened or closed after resetting, contact a
qualified specialist workshop.
Sliding sunroof97
Opening and closing
Z

Reset thepanoram aroo fwit hpower tilt/slidin g
panel or th eroller sunblinds if th epanoram a
roo fwit hpower tilt/slidin gpanel or th efron t
roller sunblin ddoes no tmov esmoothly.
XTurn th eSmartKey to position 1or2 in th e
ignition lock.
XPull th e3 switch repeatedly to th epoin tof
resistanc ein th edirection of arrow :until
th epanoram aroo fwit hpower tilt/slidin g
panel is fully closed.
XKee pth e3 switch pulled for an additional
second.
XPull th e3 switch several times in th e
direction of arrow :until th eroller sunblinds
are closed.
XKee pth e3 switch pulled for an additional
second.
XMak esur ethat th epanoram aroo fwit hpowe r
tilt/slidin gpanel and th eroller sunblinds can
be fully opened and closed again .
XIf this is notth ecase, repeat th esteps abov e
again .
Problems with the sliding sunroof
Your vehicl emay be equipped wit h asliding sunroo for apanoram aroo fwit hpowe rtilt/slidin g
panel. In this section ,th eterm "sliding sunroof" refers to bot htypes of sliding sunroof.
GWARNIN G
If you close th esliding sunroo fagain immediately after it has been blocke dor reset ,th esliding
sunroo fcloses wit hincreased or maximum force .The reversing feature is then no tactive .Part s
of th ebody could be trapped in th eclosin garea in th eprocess. This poses an increased ris kof
injury or eve nfatal injury.
Mak esur ethat no part sof th ebody are in th eclosin garea.
If somebod ybecome strapped :
Rrelease th eswitch immediately, or
Rpress th eswitch in any direction during th eautomatic closin gprocess
The closin gprocess is stopped.
!If th esliding sunroo fstill canno tbe opened or closed as aresult of amalfunction ,contact a
qualified specialist workshop.
98Sliding sunroof
Opening and closing

ProblemPossible causes/consequences andMSolutions
The sliding sunroof or
panorama roof with
power tilt/sliding panel
cannot be closed and
you cannot see the
cause.If the sliding sunroof or panorama roof with power tilt/sliding panel is
obstructed during closing and reopens again slightly:
XImmediately after it blocks, pull the3switch down again to the
point of resistance until the sliding sunroof or panorama roof with
power tilt/sliding panel is closed.
The sliding sunroof or panorama roof with power tilt/sliding panel is
closed with more force.
If the sliding sunroof or panorama roof with power tilt/sliding panel is
obstructed again during closing and reopens again slightly:
XImmediately after it blocks, pull the 3switch down again to the
point of resistance until the sliding sunroof or panorama roof with
power tilt/sliding panel is closed.
The sliding sunroof or panorama roof with power tilt/sliding panel is
closed without the automatic reversing feature.
Sliding sunroof99
Opening and closing
Z

Correct driver's seat position
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten 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.
Observe the following when adjusting steering
wheel :, seat belt ;and driver's seat =:
Ryou are as far away from the driver's air bag as
possible
Ryou are sitting in a normal upright position
Ryour thighs are slightly supported by the seat
cushion
Ryour legs are not entirely stretched and you
can depress the pedals properly
Rthe back of your head is supported at eye level
by the center of the head restraint
Ryou can hold the steering wheel with your
arms slightly bent
Ryou can move your legs freely
Ryou can see all the displays in the instrument
cluster clearly
Ryou should have a good overview of traffic
conditions
Rthe seat belt is pulled snugly against the body and is routed across the center of your shoul-
der and across your hips in the pelvic area
Further related subjects:
RAdjusting the seats electrically (Ypage 102).
RAdjusting the steering wheel mechanically
(Ypage 106).
RAdjusting the steering wheel electrically
(Ypage 106).
RFastening the seat belt correctly (Ypage 48).
RAdjusting the rear-view mirror and exterior
mirrors (Ypage 108).
RStoring the seat, steering wheel, exterior mir-
ror and head-up display settings with the
memory function (
Ypage 111).
Seats
Important safety notes
GWARNING
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 there is no
SmartKey in the ignition lock.
GWARNING
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"
(
Ypage 49) and "Children in the Vehicle"
(Ypage 60).
GWARNING
If the head restraints are not installed or not
adjusted correctly, they cannot provide pro-
tection as intended. There is an increased risk
100Seats
Seats, steering wheel and mirrors

of injury in the head and neck area, e.g. in theevent of an accident or when braking.
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 cor-
rectly.
Using the fore-and-aft adjustment, adjust the
head restraint so that it is as close as possible to
your head.
GWARNING
If the driver's seat is not engaged, it could
move unexpectedly while the vehicle is in
motion. This could cause you to lose control of the vehicle. There is a risk of an accident.
Always make sure that the driver's seat is
engaged before starting the vehicle.
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten 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.
GWARNING
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.
GWARNING
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:
Rkeep liquids from spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
Rif 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.
Rclean the seat covers as recommended;
see "Interior care".
Rdo 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.
Rwhen 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.
iThe rear-compartment head restraints can
be removed (Ypage 103).
Vehicles without the through-loading feature:
the head restraints cannot be removed from
the rear compartment seats.
For more information, contact a qualified spe-
cialist workshop.
iRelated topic:
RRear bench seat through-loading feature
(Ypage 283)
Seats101
Seats, steering wheel and mirrors
Z

Adjusting the seats electrically
Electrically adjustable seatswit hmemory
function
:Hea drestrain theight
;Backrest angle
=Seat height
?Seat cushion lengt h
ASeat cushion angle
BSeat fore-and-aftadjustmen t
iFurther relate dsubjects :
RYou can store th eseat setting susin gth e
memory function (Ypage 111).
RIf PRE-SAFE®is triggered ,th efront-
passenger seat will be moved to abette r
position if it was previously in an unfavora-
ble position (
Ypage 58).
RWhen theseat is moved forward or back,
th eheadres tis moved up or down auto -
matically.
Vehicles wit hAM GPerformance seat :th eheight
of th ehead restraints canno tbe adjusted.
Electrically adjustable seat swithout mem -
ory function
:Backrest angle
;Seat height
=Seat cushion angle
?Seat fore-and-af tadjustmen t
Adjusting the head restraints
Import ant safety notes
GWARNIN G
You could lose control of your vehicl eif you do
th efollowin gwhile driving:
Radjust th edriver's seat ,head restraint,
steering whee lor mirror s
Rfastenth eseat belt
There is aris kof an accident.
Adjus tth edriver's seat ,head restraint, steer -
ing whee land mirror and faste nyour seat belt
before starting th eengine.
GWARNIN G
If th ehead restraints are no tinstalled or no t
adjusted correctly, they canno tprovid epro -
tection as intended. There is an increased ris k
of injury in th ehead and neck area, e.g. in th e
event of an acciden tor when braking .
Always drive wit hth ehead restraints instal -
led. Befor edrivin goff ,mak esur efor every
vehicl eoccupant that th ecenter of th ehead
restrain tsupport sth ebac kof th ehead at
about eye level.
Genera l notes
Pay attention to th eimportant safet ynote s
(Ypage 100).
Do no trotate th ehead restraints of th efron tand
rear seats. Otherwise ,you canno tadjust th e
height and angle of th ehead restraints to th e
correc tposition .
102Seats
Seats, steering wheel and mirrors