2018 MERCEDES-BENZ C-CLASS SEDAN warning

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

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

Switching the seat ventilation on/off
Switching on/off
The blue indicator lamps in the button indicate
the ventilation level you have selected.
XTurn the SmartKey to position 1or2 in the
ignition lock (Ypage 136).
XTo switch on: press button:repeatedly
until the desired ventilation level is set.
XTo switch off: press button:repeatedly
until all the indicator lamps go out.
iIf the battery voltage is too low, the seat
ventilation may switch off.
iYou can open the side windows and the slid-
ing sunroof using the "Convenience opening"
feature (
Ypage 92). The seat ventilation of
the driver's seat automatically switches to the
highest level.
iWhen the vehicle is stationary, the fan
speed can be reduced automatically. This
reduces the noises of the seat ventilation.
Problems with the seat heating/seat ventilation
ProblemPossible causes/consequences and MSolutions
The seat heating or seat
ventilation has switched
off prematurely or can-
not be switched on.The on-board voltage is too low because too many electrical consum-
ers are switched on.
XSwitch off electrical consumers that you do not need, such as the
rear window defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating or seat
ventilation can be switched back on manually.
Steering wheel
Important safety notes
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
Children could injure themselves if they
adjust the steering wheel. 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 electrically adjustable steering wheel can
still be adjusted when there is no key in the igni-
tion lock.
Steering wheel105
Seats, steering wheel and mirrors
Z

Problems with the steering wheel heating
ProblemPossible causes/consequences andMSolutions
The steering wheel heat-
ing has switched off pre-
maturely or cannot be
switched on.The on-board voltage is too low because too many electrical consum-
ers are switched on.
XSwitch off electrical consumers that you do not need, such as the
rear window defroster or interior lighting.
EASY-ENTRY/EXIT feature
Important safety notes
GWARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel, you and other vehicle
occupants – particularly children – could
become trapped. There is a risk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has
any body parts in the sweep of the steering
wheel.
Move the steering wheel adjustment lever if
there is a risk of entrapment by the steering
wheel. The adjustment process is stopped.
You can stop the adjustment process by press-
ing one of the memory function's position but-
tons. This function is only available on vehicles
with memory function.
GWARNING
If children activate the EASY-ENTRY/EXIT fea-
ture, they can become trapped, 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.
GWARNING
If you drive off while the EASY-ENTRY/EXIT
feature is making adjustments, you could lose
control of the vehicle. There is a risk of an
accident.
Always wait until the adjustment process is
complete before driving off. The EASY-ENTRY/EXIT feature makes getting in
and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature using the multimedia sys-
tem (see the Digital Operator's Manual)
Position of the steering wheel when the
EASY-ENTRY/EXIT feature is active
The steering wheel swings up when you:
Rremove the SmartKey from the ignition lock
Rwith KEYLESS-GO or KEYLESS-GO start
function:
open the driver's door; the voltage
supply must be switched on
Rwith the SmartKey: open the driver's door;
the SmartKey must be in position gor1 in
the ignition lock (
Ypage 136)
Ropen the driver's door when the ignition is
switched off
iThe steering wheel only tilts up if the driving
position is stored after the steering column
adjustment has been adjusted (
Ypage 111).
The most recent driving position of the steering
wheel is stored if:
Rthe ignition is switched off
Rthe setting is stored using the memory func-
tion (Ypage 111)
iThe steering wheel only moves up if it has
not already reached the upper steering lim-
iter.
Steering wheel107
Seats, steering wheel and mirrors
Z

Position of the steering wheel for driv-
ing
The steering wheel is moved to the last selected
position when:
Rthe driver's door is closed and you insert the
SmartKey into the ignition lock
Ryou close the driver's door when the ignition
is switched on
Ryou press the Start/Stop button once in vehi-
cles with KEYLESS-GO or the KEYLESS-GO
start function
iThe steering wheel only returns to the last
set position if the driving position is stored
after the seat or steering column has been
adjusted (
Ypage 111).
The most recent driving position of the steering
wheel is stored if:
Rthe ignition is switched off
Rthe setting is stored using the memory func-
tion (Ypage 111)
Crash-responsive EASY-EXIT feature
If the crash-responsive EASY-EXIT feature is trig-
gered in an accident, the steering column will
move up when the driver's door is opened or the
SmartKey is removed from the ignition lock. This
makes it easier to exit the vehicle and rescue the
occupants.
The crash-responsive EASY-EXIT feature is
operational only if the EASY-EXIT/ENTRY fea-
ture is activated in the multimedia system (see
Digital Operator's Manual).
Mirrors
Rear-view mirror
XAnti-glare mode: flick anti-glare lever :for-
wards or back.
Exterior mirrors
Important safety notes
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
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear.
This means that you could misjudge the dis-
tance from road users traveling behind, e.g.
when changing lane. There is a risk of an acci-
dent.
For this reason, always make sure of the
actual distance from the road users traveling
behind by glancing over your shoulder.
Adjusting the exterior mirrors
XTurn the SmartKey to position 1or2 in the
ignition lock (Ypage 136).
XExterior mirror on the front-passenger side:
press button ;.
108Mirrors
Seats, steering wheel and mirrors

Exterior mirror on the driver's side: press but-
ton=.
The indicator lamp lights up in the button that
has been pressed.
The indicator lamp goes out again after some
time. You can adjust the selected exterior
mirror using button :as long as the indicator
lamp is lit.
XPress button :up, down, or to the left or
right until you have adjusted the exterior mir- ror to the correct position. You should have a
good overview of traffic conditions.
The convex exterior mirrors provide a larger field
of vision.
After the engine has been started, the exterior
mirrors are automatically heated if the rear win-
dow defroster is switched on and the outside
temperature is low.
Folding the exterior mirrors in or out
electrically
XTurn the SmartKey to position 1or2 in the
ignition lock (Ypage 136).
XBriefly press :.
Both exterior mirrors fold in or out.
iMake sure that the exterior mirrors are
always folded out fully while driving. They
could otherwise vibrate.
iIf you are driving faster than 30 mph
(47 km/h), you can no longer fold in the exte-
rior mirrors.
Resetting the exterior mirrors
If the battery has been disconnected or com-
pletely discharged, the exterior mirrors must be
reset. The exterior mirrors will otherwise not
fold in if you have activated the Automatic
Mirror Foldingfunction in the multimedia
system.
XTurn the SmartKey to position 1or2 in the
ignition lock (Ypage 136).
XBriefly press :.
Folding the exterior mirrors in or out
automatically
When theAutomatic Mirror Foldingfunc-
tion is activated in the multimedia system (see
Digital Operator's Manual):
Rthe exterior mirrors fold in automatically as
soon as you lock the vehicle from the outside.
Rthe exterior mirrors fold out again automati-
cally as soon as you unlock the vehicle.
iIf the exterior mirrors have been folded in
manually, they do not fold out.
Exterior mirror pushed out of position
If an exterior mirror has been pushed out of
position, proceed as follows:
XVehicles without electrically folding exte-
rior mirrors: manually move the exterior mir-
ror into the correct position.
XVehicles with electrically folding exterior
mirrors: press and hold button :until you
hear a click and then the mirror engaging in
position (
Ypage 109).
The mirror housing is engaged again and you
can adjust the exterior mirrors as usual
(
Ypage 108).
Automatic anti-glare mirrors
GWARNING
Electrolyte may escape if the glass in an auto-
matic anti-glare mirror breaks. The electrolyte
is harmful and causes irritation. It must not
come into contact with your skin, eyes, res-
piratory organs or clothing or be swallowed.
There is a risk of injury.
Mirrors109
Seats, steering wheel and mirrors
Z