warning MERCEDES-BENZ C-Class COUPE 2015 CL205 Repair Manual

R
open the panorama roof with power tilt/
sliding panel and the roller sunblind
R switch on the seat ventilation for the driv-
er's seat
i The convenience opening feature can
only be operated using the SmartKey. The
SmartKey must be close to the driver's
door handle.
X Point the tip of the SmartKey at the driver's
door handle.
X Press and hold the 0036button until the
side windows and the panorama roof with
power tilt/sliding panel are in the desired
position.
If the roller sunblind of the panorama roof
with power tilt/sliding panel is closed, the
roller sunblind is opened first.
X Press and hold the 0036button again until
the panorama roof with power tilt/sliding
panel is in the desired position.
X To interrupt convenience opening:
release the 0036button. Convenience closing feature
General notes When you lock the vehicle, you can simulta-
neously:
R close the side windows
R close the panorama roof with power tilt/
sliding panel
You can then close the roller sunblind. 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.
Proceed as follows if someone is trapped: With the SmartKey:
R release the 0037button.
R press and hold the 0036button until the
side windows and the sliding sunroof or the
panorama roof with power tilt/sliding
panel open again.
Using KEYLESS-GO:
R release the sensor surface on the door han-
dle.
R pull the door handle immediately and hold
it.
The side windows and the sliding sunroof or
the panorama roof with power tilt/sliding
panel open.
Using the SmartKey i
The SmartKey must be close to the driv-
er's door handle.
X Point the tip of the SmartKey at the driver's
door handle.
X Press and hold the 0037button 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 Press and hold the 0037button again until
the roller sunblind of the panorama roof
with power tilt/sliding panel closes.
X To interrupt convenience closing:
release the 0037button.
Using KEYLESS-GO The KEYLESS-GO key must be outside the
vehicle. All the doors must be closed. Side windows
87Opening and closing Z

X
Touch recessed sensor surface 0043on 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 sen-
sor surface 0043.
X Make sure that all the side windows and the
panorama roof with power tilt/sliding
panel are closed.
X Touch recessed sensor surface 0043on the
door handle again until the roller sunblind
of the panorama roof with power tilt/slid-
ing panel closes.
X To interrupt convenience closing:
release recessed sensor surface 0043on the
door handle. Resetting the side windows
You must reset each side window if a side
window can no longer be closed fully. X Close all the doors.
X Turn the SmartKey to position 1or 2in the
ignition lock.
X Pull the corresponding switch on the door
control panel until the side window is com-
pletely closed (Y page 86).
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 win-
dow is completely closed (Y page 86).
X Hold the switch for an additional second.
X If the corresponding side window remains
closed after the button has been released,
the side window has been reset correctly. If this is not the case, repeat the steps aboveagain. Problems with the side windows
Problem: 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.
Problem: a side window cannot be closed
and you cannot see the cause. 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 clos-
ing 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 toreopen the side window.
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. 88
Side windowsOpening and closing

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 side window is closed without the anti-
entrapment feature. Sliding sunroof
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.
! 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
sliding sunroof is closed when you leave the
vehicle. The vehicle electronics can be
damaged if water enters the vehicle inte-
rior.
i Resonance noises can occur in addition to
the usual airflow noises when the sliding
sunroof is open. They are caused by minor
pressure fluctuations in the vehicle interior.
Change the position 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 opensagain automatically. However, the automatic
reversing feature is only an aid and does not
relieve you of the responsibility of paying
attention when closing the sliding sunroof. 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 during automatic operation, push the
switch briefly in any direction
The closing process is stopped. Sliding sunroof
89Opening and closing Z

Operating the sliding sunroof
Overhead control panel
0043
To raise
0044 To open
0087 To close/lower
The sliding sunroof can only be operated
when the roller sunblind is open. X Turn the SmartKey to position 1or 2in the
ignition lock.
X Press or pull the 0057switch in the corre-
sponding direction.
i If you press the
0057switch beyond the
point of resistance, an automatic opening/ closing process is started in the corre-
sponding direction. You can stop automatic
operation by pressing/pulling the switch
again. Operating the roller sunblind for the
sliding sunroof
General notes The roller sunblind shields the vehicle interior
from sunlight. The roller sunblind can only be opened and closed when the sliding sunroof
is closed. G
WARNING
When opening or closing the roller sunblind,
parts of the body could be trapped between
the roller sunblind and the frame or sliding
sunroof. There is a risk of injury. When opening or closing make sure that no
parts of the body are in the sweep of the roller sunblind.
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.
Roller sunblind reversing feature The roller sunblind is equipped with an auto-
matic reversing feature. If a solid object
blocks or restricts the roller sunblind during
the closing process, the roller sunblind opens
again automatically. The automatic reversing
feature is only an aid and is not a substitute
for your attentiveness to the roller sunblind
while it is closing. G
WARNING
The reversing feature does not react:
R to soft, light and thin objects, e.g. small fin-
gers
R when closing the roller sunblind 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.
When closing make sure that no parts of the
body are in the sweep of the roller sunblind.
If somebody becomes trapped:
R release the switch immediately, or
R during automatic operation, push the
switch briefly in any direction
The closing process is stopped. 90
Sliding sunroofOpening and closing

Opening and closing
Overhead control panel
0043
Opens
0044 Opens
0087 Closes
X Turn the SmartKey to position 1or 2in the
ignition lock.
X Press or pull the 0057switch in the corre-
sponding direction.
i If you press the
0057switch beyond the
point of resistance, an automatic opening/ closing process is started in the corre-
sponding direction. You can stop automatic
operation by pressing/pulling the switch
again.
Resetting the sliding sunroof and the
roller sunblind Reset the sliding sunroof and the roller sun-
blind if the sliding sunroof or the roller sun-
blind does not move smoothly.
X Turn the SmartKey to position 1or 2in the
ignition lock.
X Pull the 0057switch repeatedly to the point
of resistance in the direction of arrow 0087
until the sliding sunroof is fully closed.
X Keep the 0057switch pulled for an addi-
tional second.
X Pull the 0057switch repeatedly to the point
of resistance in the direction of arrow 0087
until the roller sunblind is fully closed.
X Keep the 0057switch pulled for an addi-
tional second. X
Make sure that the sliding sunroof
(Y page 90) and the roller sunblind
(Y page 91) can be fully opened again.
X If this is not the case, repeat the steps
above again.
! If the sliding sunroof and the roller sun-
blind cannot be fully closed or reset, con-
tact a qualified specialist workshop. Problems with the sliding sunroof
Problem: the sunroof cannot be closed
and you cannot see the cause. G
WARNING
If you close the sliding sunroof again immedi- ately after it has been blocked or reset, the
sliding sunroof closes with increased or max- imum 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 during automatic operation, push the
switch briefly in any direction
The closing process is stopped.
If the sliding sunroof is obstructed during
closing and reopens again slightly:
X Immediately after the sliding sunroof
blocks, pull the 0057switch in the over-
head control panel down to the point of
resistance and hold it until the sliding sun-
roof is closed.
The sliding sunroof is closed with increased
force.
If the sliding sunroof is obstructed again dur-
ing closing and then reopens slightly:
X Immediately after the sliding sunroof
blocks, pull the 0057switch in the over-
head control panel down to the point of Sliding sunroof
91Opening and closing Z

settings with the memory function
(Y
page 105). Seats
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 there is
no SmartKey in the ignition lock. 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 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 engine. G
WARNING
If you adjust the seat height carelessly, you or other vehicle occupants could be trapped andthereby 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
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 42) and "Children in the vehicle"
(Y page 58).
! 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 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 mate- rials, e.g. blankets, coats, bags, seat cov-
ers, child seats or booster seats.
! Make sure that there are no objects in the
footwell under or behind the seats when
moving the seats back. There is a risk that
the seats and/or the objects could be dam-
aged.
i Vehicles without the through-loading fea-
ture: the head restraints cannot be
removed from the rear compartment seats.
For more information, contact a qualified
specialist workshop. Seats
95Seats, steering wheel and mirrors Z

i
Further related subjects:
R Rear bench seat through-loading feature
(Y page 250) Adjusting the seats manually and
electrically
You can only adjust the front-passenger seat
manually and electrically. 0043
Backrest angle
0044 Seat height
0087 Seat cushion angle
0085 Seat fore-and-aft adjustment
i Adjust the seat cushion angle so that your
thighs are lightly supported.
Seat fore-and-aft adjustment X
Lift handle 0085and slide the seat forwards
or rearwards.
X Release lever 0085again.
Make sure that you hear the seat engage in
position.
Seat cushion angle X
Turn handwheel 0087in the desired direction. Adjusting the seats electrically
0043
Head restraint height
0044 Seat cushion angle
0087 Seat height
0085 Seat fore-and-aft adjustment
0083 Backrest angle
i You can store the seat settings using the
memory function (Y page 105). Adjusting the head restraints
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 head restraints are not installed and adjus-
ted correctly, they cannot provide protection
as intended. There is an increased risk of
injury in the head and neck area, e.g. in the
event 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. 96
SeatsSeats, steering wheel and mirrors

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 possibleto your head.
Pay attention to the important safety notes
(Y page 95).
Adjusting the height of the head
restraints electrically X
To adjust the head restraint height: slide
the switch for head restraint adjustment
(Y page 96) up or down in the direction of
the arrow. Folding the front seat backrests
forward/back
Important safety notes G
WARNING
If the backrest is not engaged, it could fold
forwards during a braking maneuver or in the
event of an accident, for example. The seat
backrest will then push the vehicle occupant
against the seat belt. The seat belt can no
longer offer the intended level of protection
and could even cause injuries. There is an
increased risk of injury.
Before each journey, make sure that the back- rest engages fully as described. 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.
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.
Folding the seat backrest forward The seat moves forwards if:
R you have folded the backrest forwards and
R the seat is in the rear half of the adjustment
range.
This makes it easier for passengers to get into and out of the rear compartment. The head
restraint is lowered simultaneously. X
Pull seat release handle 0043forwards and
fold the backrest forwards as far as it will
go.
The seat automatically moves to the fore-
most position and the head restraint is low-
ered.
Folding the seat backrest back X
Swing back the seat backrest.
The seat moves automatically to the stored
position. Seats
97Seats, steering wheel and mirrors Z

Adjusting the 4-way lumbar support
You can adjust the contour of the front seat
backrests individually to provide optimum
support for your back. 0043
To raise the backrest contour
0044 To soften the backrest contour
0087 To lower the backrest contour
0085 To harden the backrest contour Switching the seat heating on/off
Activating/deactivating G
WARNING
Repeatedly switching on the seat heating can
cause the seat cushion and backrest pads to
become very hot. The health of persons with
limited temperature sensitivity or a limited
ability to react to excessively high tempera-
tures may be affected or they may even suffer burn-like injuries. There is a risk of injury.
Therefore, do not switch the seat heating on
repeatedly.
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. Driver's and front-passenger seat
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
1 or 2in the ignition lock (Y page 133).
X To switch on: press button0043repeatedly
until the desired heating level is set.
X To switch off: press button0043repeatedly
until all the indicator lamps go out. 98
SeatsSeats
, steering wheel and mirrors

Problems with the seat ventilation
Problem
Possible causes/consequences and
0050
0050Solutions The seat ventilation has
switched off prema-
turely or cannot be
switched on. The on-board voltage is too low because too many electrical con-
sumers are switched on.
X Switch off electrical consumers that you do not need, such as
the rear window defroster or interior lighting. Steering wheel
Important safety notes
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 the steering wheel is unlocked while the
vehicle is in motion, it could change position
unexpectedly. This could cause you to lose
control of the vehicle. There is a risk of an
accident.
Before starting off, make sure the steering
wheel is locked. Never unlock the steering
wheel while the vehicle is in motion. G
WARNING
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 SmartKey in
the ignition lock. Adjusting the steering wheel man-
ually
G
WARNING
If the steering wheel is unlocked while the
vehicle is in motion, it could change position
unexpectedly. This could cause you to lose
control of the vehicle. There is a risk of an
accident.
Before starting off, make sure the steering
wheel is locked. Never unlock the steering
wheel while the vehicle is in motion. 0043
Release lever
0044 To adjust the steering wheel height
0087 To adjust the steering wheel position
(fore-and-aft adjustment)
X Push release lever 0043down completely.
The steering column is unlocked.
X Adjust the steering wheel to the desired
position.
X Push release lever 0043up completely.
The steering column is locked.
X Check if the steering column is locked.
When doing so, try to push the steering 100
Steering wheelSeats, steering wheel and mirrors