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

XTo open all side windows fully:press
switch :beyond the pressure point.
XTo close all side windows: pull and hold
button :.
Using KEYLESS-GO
GWARNING
When using the convenience closing feature,
parts of the body could be trapped in the clos-
ing area when a side window is being closed.
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.
The SmartKey must be outside the vehicle. All
the doors must be closed.
XConvenience closing feature: touch
recessed sensor surface :on the door han-
dle until the side windows are fully closed.
iMake sure you only touch recessed sensor
surface :.
XTo interrupt convenience closing: release
recessed sensor surface :on the door han-
dle.
Resetting the side windows
If a side window can no longer be closed fully,
you must reset it.
XClose all the doors.
XTurn the SmartKey to position 1or2 in the
ignition lock.
XClose the soft top (Ypage 89).
XPull the corresponding switch on the door
control panel until the side window is com-
pletely closed (
Ypage 86).
XHold the switch for an additional second.
If the side window opens again slightly:
XImmediately pull the corresponding switch on
the door control panel until the side window is
completely closed (
Ypage 86).
XHold the switch for an additional second.
XIf 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
GWARNING
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.
Side windows87
Opening and closing
Z

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.
ProblemPossible causes/consequences andMSolutions
A side window cannot be
closed because it is
blocked by objects, e.g.
leaves in the window
guide.XRemove the objects.
XClose 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:
XImmediately 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:
XImmediately after the window blocks, pull the corresponding switchagain until the side window has closed.
The side windows are closed without the automatic reversing fea-
ture.
Soft top
Important safety notes
GWARNING
If you do not fully open/close the soft top, the
soft-top hydraulics depressurize after a short
time. This causes the soft top to lower unex-
pectedly and may cause you or others to be
trapped. There is a risk of injury.
Always open or close the soft top completely.
!Never sit on the soft-top compartment
cover or stow heavy objects there. You will
otherwise damage the soft top and soft-top
compartment cover of the vehicle.
!When opening and closing the soft top,
make sure that:
Rthere is sufficient clearance above it, as the soft top swings upwards.
Rthe trunk is only loaded to below the trunk
partition.
Rthe trunk partition is not pushed up by the
load.
Rthe trunk lid is closed.
Rthere are no objects on the soft-top com-
partment cover
Rthe fabric is not dirty, wet or frozen.
You could otherwise damage the soft top,
trunk and other parts of the vehicle.
Take the height of the vehicle into account when
opening and closing the soft top (
Ypage 345).
Make sure that the soft top is dry and clean
before opening it. Otherwise, water or dirt could
enter the vehicle interior or trunk.
You can open or close the soft top:
Rwhen the vehicle is stationary or
Rwhen you are not exceeding a speed of
30 mph (50 km/h) (Max. 35 mph (60 km/h),
to avoid interrupting the closing process while
slightly exceeding the speed limit).
If there is a strong head wind, it may not be pos-
sible to close the soft top fully. In this case,
reduce speed or stop in order to close the soft
top fully.
For safety reasons, Mercedes-Benz recom-
mends that you only open or close the soft top
when the vehicle is stationary.
88Soft top
Opening and closing

If the soft top does not open or close fully, the
soft-top hydraulics are depressurized and the
soft top is lowered:
Rafter approximately 7 minutes when the igni-
tion is switched on
Rafter about
20 seconds if the ignition is switched off
Opening/closing with the soft top
switch
Important safety notes
GWARNING
When opening or closing the soft top, there is a risk that parts of the body could become
trapped by moving parts such as the roof
mechanism, the trunk lid, or the side win-
dows. There is a risk of injury.
When opening or closing the roof, make sure
that no parts of the body are in the vicinity of
moving parts. Release the switch if somebody
becomes trapped.
GWARNING
If the vehicle speed exceeds 35 mph
(60 km/h), the soft top stops during the open- ing or closing process. This impairs your view
to the rear. There is a risk of an accident.
Reduce your speed to below 35 mph
(60 km/h) or stop the vehicle in accordance
with the traffic conditions. Press or pull the
soft-top switch again in order to open or close
the soft top fully.
Opening and closing
XMake sure that the trunk partition is closed
(Ypage 90).
XClose the trunk lid.
XTurn the SmartKey to position 2in the igni-
tion lock.
XWhen the vehicle is stationary, depress the
brake pedal and keep it depressed.
XTo open: pull and hold soft top switch :until
the entire soft top is stowed away in the trunk.
The multifunction display shows the opening
process of the soft top.
If, when opening, you drive at speeds above
35 mph (60 km/h), the opening process is
stopped. The Open/Close Convertible
Top Completelymessage is shown in the
multifunction display. In order to open the
soft top fully, reduce your speed again to
below 35 mph (60 km/h) and pull the soft-top
switch again.
XTo close: pull and hold soft top switch :until
the soft top is completely closed.
The multifunction display shows the closing
process of the soft top.
If, when closing, you drive at speeds above
35 mph (60 km/h), the closing process is
stopped. The Open/Close Convertible
Top Completelymessage is shown on the
multifunction display. In order to close the
soft top fully, reduce your speed again to
below 35 mph (60 km/h) and press the soft-
top switch again.
Opening/closing using the SmartKey
Important safety notes
GWARNING
When opening or closing the soft top, there is a risk that parts of the body could become
trapped by moving parts such as the roof
mechanism, the trunk lid, or the side win-
dows. There is a risk of injury.
When opening or closing the roof, make sure
that no parts of the body are in the vicinity of
Soft top89
Opening and closing
Z

moving parts. Release the switch if somebodybecomes trapped.
Opening and closing
The SmartKey must be in close proximity to the
vehicle.
XClose the trunk partition (Ypage 90).
Otherwise only the side windows open.
XTo open: press and hold the %button in
the SmartKey until the soft top is completely
open.
The multifunction display shows the opening
process of the soft top. The seat ventilation is
switched on.
XTo close: press and hold the &button in
the SmartKey until the soft top is completely
closed.
The multifunction display shows the closing
process of the soft top.
Relocking the soft top
Important safety notes
GWARNING
If you do not fully open/close the soft top, the
soft-top hydraulics depressurize after a short
time. This causes the soft top to lower unex-
pectedly and may cause you or others to be
trapped. There is a risk of injury.
Always open or close the soft top completely.
The soft top is not locked if:
Rthe Open/Close Convertible Top Com‐pletelymessage is shown in the multifunc-
tion display
Ryou hear a warning tone for up to ten seconds
when pulling away or while driving
Locking
You can lock the soft top again if it is not locked
fully.
XPull over and stop the vehicle safely as soon
as possible, paying attention to road and traf-
fic conditions.
XTurn the SmartKey to position 2in the igni-
tion lock.
XPress the soft-top switch (Ypage 89).
Trunk partition
General notes
The trunk partition can be used to cover luggage
and loads in the trunk.
The soft top can be opened only when the man-
ual trunk partition is closed. In vehicles with a
partially electrical trunk partition, this automat-
ically closes when the soft top is opened.
!In order to avoid damaging the soft top or
stowed loads, please adhere to the following
while the soft top is open:
Rwhen the trunk partition is open, do not
place any objects in or behind the net on
the side that are too long. These objects
could obstruct the trunk partition or cause
damage to the open soft top.
Rmake sure that the cargo does not push the
trunk partition upwards.
Opening and closing
Depending on the vehicle equipment, your vehi-
cle is installed with a partially electrical or a
manual trunk partition.
90Soft top
Opening and closing

To open:
XAll vehicles:push trunk partition ;using
the handle against the direction of the arrow
to its upper end position.
To close:
XVehicles with a partially electrical trunk
partition: press button :.
Trunk partition ;closes automatically.
iIf the system fails, the partially electrical
trunk partition can be closed manually.
XVehicles with a manual trunk partition:
pull trunk partition ;by the handle in the
direction of the arrow until it rests on the
sides of the trunk.
AIRCAP
Important safety notes
GWARNING
When retracting the AIRCAP, persons could
become caught in the moving mechanism.
There is a risk of injury.
Ensure that persons do not hold onto the
upper frame of the windshield and do not
touch the AIRCAP wind deflector.
With AIRCAP, four people can travel comfortably
with the soft top open. AIRCAP reduces the draft
for the driver and passengers in both the front
and the rear compartment in a vehicle with the
soft top down.
In particularly turbulent air, e.g. when following
a vehicle or in a crosswind, AIRCAP's effect may
be reduced.
AIRCAP has the following components:
Ra wind deflector above the windshield
Ra wind screen behind the two rear-seat head
restraints
When AIRCAP has been activated, the wind
screen extends up between the two rear-seat
head restraints. At the same time, the wind
deflector extends out along the front wind-
shield.
AIRCAP can be activated or deactivated up to
speeds of approximately 100 mph (160 km/h).
Activating and deactivating AIRCAP
XTurn the SmartKey to position 2in the igni-
tion lock.
XTo activate: pull switch:.
The wind screen behind the rear-seat headr-
ests and the wind deflector in the roof frame
extend simultaneously. The indicator lamp in
switch :lights up.
XTo deactivate: press switch:.
The wind screen behind the rear-seat headr-
ests and the wind deflector in the roof frame
retract simultaneously. The indicator lamp in
switch :goes out.
If you park your vehicle with the soft top down
and remove the SmartKey, the wind deflector
and the wind screen retract automatically.
When you restart your engine after having been
parked, the wind deflector and the wind screen
extend again automatically.
AIRCAP cannot be extended or retracted if the
vehicle speed exceeds approximately 100 mph
(160 km/h).
Folding wind screen
Important safety notes
GWARNING
If you use the wind screen in darkness or in
other conditions offering poor visibility, your
view to the rear is further impaired. There is a
risk of an accident.
Only use the wind screen when visibility con-
ditions are good.
Soft top91
Opening and closing
Z

GWARNING
If the wind screen is incorrectly installed, it
could detach itself during a journey and
endanger other road users. There is a risk of
an accident and injury.
Install the wind screen as described.
!Install or remove the wind screen only when
the soft top is open. You could otherwise
damage the wind screen or the vehicle inte-
rior.
!Observe the backrest position of the front
seats if the wind screen is installed, since the
backrest could collide with the wind screen
here.
!Mercedes-Benz recommends that you only
use wind screens which have been tested and
approved for Mercedes-Benz vehicles. This
helps to prevent damage to the vehicle.
The folding wind screen protects against wind
when driving with the soft top open. It is secured
above the rear bench seats. For this reason, only
the driver and the front passenger can travel in
the vehicle when the folding wind screen is
installed.
The folding wind screen can be installed or
removed from the driver's side or passenger
side.
For operations involving the folding wind screen, it is preferable to be positioned on the side of the
vehicle facing away from the traffic, after stop-
ping the vehicle in accordance with the traffic
conditions.
Installing/removing the folding wind
screen
Installing
The folding wind screen is stowed in a bag. The
bag is attached with a lashing strap to the
through-loading facility behind the rear seats.
If you wish to use the through-loading facility,
loosen the lashing strap attached to the
through-loading facility and stow the folding
wind screen in the trunk. Use the lashing strap
to fasten the bag to one of the luggage hooks in
the trunk.
XOpen all side windows and the soft top.
XFold the rear seats forward (Ypage 265) and
remove the bag containing the folding wind
screen.
XRemove the folding wind screen from the bag.
XFold out folding wind screen :as shown.
XFold out the two brackets ;to the left and
right.
XAlign brackets ;of folding wind screen :
with both rear fixtures =on the vehicle.
92Soft top
Opening and closing

Perform the following steps in sequence on both
sides of the vehicle:
XPull the handle?in the direction of the
arrow.
XAlign folding wind screen :with side fixture
A on the vehicle from above and insert.
XPush handle ?on folding wind screen :
back as far as it will go.
Folding wind screen :is locked.
Removing
XPull handles ?on the left and right one after
the other and slide folding wind screen :out
of fixture Afrom above.
Folding wind screen :is unlocked.
XPull folding wind screen :out of both rear
fixtures =.
XFold in both brackets ;on folding wind
screen :.
XFold folding wind screen :together and
stow it in the bag.
XUse the lashing strap to attach the bag con-
taining the folding wind screen to the through- loading facility behind the rear seats.
Problems with the soft top
ProblemPossible causes/consequences and MSolutions
The soft top will not open
or close.The ignition is not switched on.
XMake sure that the SmartKey is in position 2in the ignition lock.
The trunk lid is open.
XClose the trunk lid (Ypage 83).
The trunk partition is not closed.
XClose the trunk partition (Ypage 90).
The roll bars have been deployed.
XVisit a qualified specialist workshop.
The soft-top mechanism or control system is defective.
XVisit a qualified specialist workshop.
The soft top has been opened and closed several times in a row. The
soft-top drive has been deactivated automatically for safety reasons.
You can open and close the soft top again after approximately ten
minutes.
XSwitch off the ignition and turn it back on.
XRepeat the opening or closing procedure.
Soft top93
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 96).
RAdjusting the steering wheel electrically
(Ypage 101).
RFastening the seat belt correctly (Ypage 47).
RAdjusting the rear-view mirror and exterior
mirrors (Ypage 103).
RStoring the seat, steering wheel, exterior mir-
ror and head-up display settings with the
memory function (
Ypage 106).
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 59).
GWARNING
If the head restraints are not installed or not
adjusted correctly, they cannot provide pro-
tection 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.
94Seats
Seats, steering wheel and mirrors