2016 MERCEDES-BENZ C-CLASS CABRIOLET ignition

Exterior lighting
General notes
For reasons of safety, Mercedes-Benz recom-
mends that you drive with lights switched on
even during the daytime. In some countries,
operation of the headlamps varies due to legal
requirements and voluntary recommendations. Driving abroad
Vehicles with halogen or static LED
headlamps It is not necessary to switch your headlamps to
symmetrical dipped beam when driving in coun- tries where vehicles are driven on the opposite
side of the road to the country in which the vehi-
cle is registered. Legal requirements are fulfilled
without switching the headlamps to symmetri-
cal dipped beam.
Vehicles with Intelligent Light System It is necessary to switch your headlamps to sym-
metrical dipped beam before crossing the bor-
der into countries where vehicles are driven on
the opposite side of the road. This prevents
oncoming traffic from being dazzled.
You can switch the headlamps to symmetrical or
asymmetrical dipped beam using the "dipped-
beam headlamps for driving on the right/left"
function via the on-board computer
(Y page 236). This must be switched back to
asymmetrical dipped beam upon your return.
Symmetrical lights do not illuminate as large an
area of the edge of the carriageway. In this case,
"highway mode" and "extended-range fog
lamps" are not available. Setting the exterior lighting
Setting options Exterior lighting can be set using the:
R light switch (Y page 114)
R combination switch (Y page 116)
R headlamp range control for vehicles with hal-
ogen headlamps (Y page 116)
R on-board computer (Y page 235) Light switch Operation
1
W
Left-hand parking lamps
2 X
Right-hand parking lamps
3 T
Side lamps, licence plate and instru-
ment cluster lighting
4 Ã
Automatic headlamp mode, controlled
by the light sensor
5 L
Dipped-beam/main-beam headlamps
B R
Rear fog lamp
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
X Turn the light switch to the Ãposition.
The exterior lighting, except the side/parking
lamps, switches off automatically if you: R remove the key from the ignition lock
R open the driver's door with the key in posi-
tion 0in the ignition lock
Automatic headlamp mode G
WARNING
When the light switch is set to Ã, the
dipped-beam headlamps may not be switched on automatically if there is fog, snow or othercauses of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
L.
The automatic headlamp feature is only an aid.
The driver is responsible for the vehicle lighting at all times.
à is the preferred light switch position. 114
Exterior lightingLights and windscreen wipers

The light setting is automatically selected
according to the brightness of the ambient light,
but not in the event of poor visibility due to
weather conditions such as fog, snow or spray.
R With the key in position 1in the ignition lock,
the side lamps are switched on or off auto-
matically depending on the brightness of the
ambient light.
R The daytime driving lights or the side lamps
and dipped-beam headlamps are switched on or off automatically while the engine is run-
ning depending on the ambient light condi-
tions.
X To switch on the automatic headlamps:
turn the light switch to the
Ãposition.
The daytime driving lights improve the visibility
of your vehicle during the day.
When the side lamps and dipped-beam head-
lamps are switched on, the green Tside
lamps and Ldipped-beam headlamps indi-
cator lamps on the instrument cluster light up.
Dipped-beam headlamps G
WARNING
When the light switch is set to Ã, the
dipped-beam headlamps may not be switched on automatically if there is fog, snow or othercauses of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
L.
When the ignition is switched on and the light
switch is in the Lposition, the side lamps
and dipped-beam headlamps are switched on
even if the light sensor does not sense dark
ambient light conditions. This is advantageous
when there is fog or rain.
X To switch on the dipped-beam headlamps:
turn the key in the ignition lock to position 2
or start the engine.
X Turn the light switch to the Lposition.
The green Lindicator lamp on the instru-
ment cluster lights up.
Rear fog lamp The rear fog lamp improves the visibility of your
vehicle for the traffic behind in the event of
heavy fog. You must observe the legal require- ments for the country in which you are currently
driving when operating the rear fog lamp.
X To switch on the rear fog lamp: turn the key
in the ignition lock to position 2or start the
engine.
X Turn the light switch to the LorÃ
position.
X Press the Rbutton.
The yellow Rindicator lamp on the instru-
ment cluster lights up.
Side lamps
! When the battery is discharged heavily, the
side lamps or parking lamps are automatically
switched off to facilitate an engine start.
Always park your vehicle safely and in a well lit area, in accordance with the relevant legal
stipulations. Avoid using the Tside lamps
for periods lasting several hours. Where pos-
sible, switch on the right Xor left W
parking lamp.
X To switch on the side lamp: turn the light
switch to the Tposition.
The green Tindicator lamp on the instru-
ment cluster lights up.
Parking lamps Switching on the parking lamps ensures that the
corresponding side of the vehicle is illuminated.
X To switch on the parking lamp: turn the key
to position 0in the ignition lock or remove the
key.
X Turn the light switch to the W(left-hand
side of the vehicle) or X(right-hand side of
the vehicle) position. Exterior lighting
115Lights and windscreen wipers Z

combination switch, only the indicator lamp
on the corresponding side of the vehicle will
flash.
The hazard warning lamps switch on automati-
cally if:
R an airbag has been triggered or
R the vehicle decelerates rapidly from a speed
of above 70 km/h and comes to a standstill
The hazard warning lamps switch off automati-
cally if the vehicle reaches a speed of above
10 km/h again after a full brake application.
The hazard warning lamps continue to operate
even if the ignition is switched off. Intelligent Light System
General notes The Intelligent Light System is a system that
adjusts the headlamps to suit the prevailing
driving and weather conditions. It offers
advanced functions for improved illumination of
the road surface, e.g. depending on the vehicle
speed or weather conditions. The system
includes the active light function, cornering light
function, motorway mode and extended-range
fog lamps. The system is active only when it is
dark.
You can activate/deactivate the Intelligent Intelligent
Light System
Light System function using the on-board
computer (Y page 235).
Active light function The active light function is a system that moves
the headlamps according to the steering move- ments of the front wheels. In this way, relevant
areas remain illuminated while you are driving.
This allows you to recognise pedestrians,
cyclists and animals sooner.
Active: when the lights are switched on.
Cornering light function The cornering light function improves the illu-
mination of the road over a wide angle in the
direction you are turning, enabling better visi-
bility in tight bends, for example. It can be acti-
vated only when the dipped-beam headlamps
are switched on. Active:
R if you are driving at speeds below 40 km/h
and switch on the turn signal or turn the steer-
ing wheel
R if you are driving at speeds between 40 km/h
and 70 km/h and turn the steering wheel
The cornering light function may remain lit for a short time, but is automatically switched off
after no more than three minutes.
Motorway mode Motorway mode increases the range of the
beam.
Active:if you are driving at a speed above
110 km/h and do not make any large steering
movements for at least 1000 m or if you are
driving at a speed above 130 km/h.
Not active: if you are driving at speeds below
80 km/h following activation.
Extended range fog lamps The extended-range fog lamps reduce the glare
experienced by the driver and improve the illu-
mination of the edge of the carriageway.
Active: if you are driving at speeds below
70 km/h and you switch on the rear fog lamp.
Not active: if, following activation, you are driv-
ing at speeds above 100 km/h or if you switch
off the rear fog lamp. Adaptive Highbeam Assist Plus
General notes With Adaptive Highbeam Assist Plus, you can
automatically switch between dipped-beam,
partial main-beam and main-beam headlamps.
Partial main-beam illumination is a form of illu-
mination whereby the main beam is directed
past other road users. Other road users are kept
out of the main beam. This prevents glare. If
there is a vehicle in front, for example, the main-
beam headlamps illuminate the areas to its right
and left, and the vehicle in front is illuminated by the dipped-beam headlamps.
The system automatically adapts the dipped-
beam headlamp range depending on the dis-
tance to the other vehicle. Once the system no
longer detects any other vehicles, it switches on the main-beam headlamps again. Exterior lighting
117Lights andwindscreen wipers Z

Interior lighting
Overview of interior lighting
Front overhead control panel :
p Left-hand front reading lamp
; c Front interior lighting
= | Automatic interior lighting control
? p Right-hand front reading lamp Interior lighting control
General notes In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatically deactivated after some time
except for when the key is in position 2in the
ignition lock.
The colour and brightness of the ambient light-
ing are set using the multimedia system (see
Digital Owner's Manual).
Automatic interior lighting control X
To switch on or off: press the|button.
When the automatic interior lighting control is
switched on, the button is flush with the over- head control panel.
The interior lighting automatically switches on if
you:
R unlock the vehicle
R open a door
R remove the key from the ignition lock
The interior lighting is activated for a short time
when the key is removed from the ignition lock. This delayed switch-off can be adjusted via the
multimedia system (see Digital Owner's Man-
ual). Replacing bulbs
Important safety notes
G
WARNING
Bulbs, lamps and plug connectors can
become very hot during use. When replacing a bulb, you could burn yourself on these com-
ponents. There is a risk of injury.
Allow these components to cool down before replacing the bulb.
Do not use a bulb if it has been dropped or if its
glass tube has been scratched.
The bulb may explode if:
R you touch it
R it is hot
R you drop it
R you scratch it
Use bulbs only in closed lamps that have been
designed for this purpose. Fit only spare bulbs of the same type and the specified voltage.
Marks on the glass tube reduce the service life
of the bulbs. Do not touch the glass tube with
your bare hands. If necessary, clean the glass
tube when cold with alcohol or spirit and rub it
off with a lint-free cloth.
Protect bulbs from moisture during operation.
Do not allow bulbs to come into contact with
liquids.
Replace only the bulbs listed (Y page 120).
Have the bulbs that you cannot change yourself
replaced at a qualified specialist workshop.
If you require assistance replacing bulbs, con-
sult a qualified specialist workshop.
If the new bulb still does not light up, consult a
qualified specialist workshop.
Headlamps and lights are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times. Have
the headlamp setting checked regularly.
Vehicles with LED headlamps: the front and
rear lamp clusters of your vehicle are equipped
with LED bulbs. Do not replace the bulbs your-
self. Contact a qualified specialist workshop
with the necessary specialist knowledge and
tools to carry out the work required. Replacing bulbs
119Lights and windscreen wipers Z

X
Press on housing cover :, turn it to the right
and lock it.
X Replace the cover in the front wheel arch
(Y page 121).
Fitting/removing the cover on the front wheel arch You must remove the cover in the front wheel
arch before you can change the front turn signal
lamp. X
To remove: switch off the lights.
X Turn the front wheels inwards.
X Use a suitable object to turn rotary knob :
180° outwards until it stops.
Cover ;is released.
X Lift cover ;off.
X To fit:insert cover ;into the left, right and
two lower catches.
X Use a suitable object to turn rotary knob :
180° inwards until it stops.
Cover ;is locked. Windscreen wipers
Switching the windscreen wipers on/
off
! Do not operate the windscreen wipers when
the windscreen is dry, as this could damage
the wiper blades. Moreover, dust that has col-
lected on the windscreen can scratch the
glass if wiping takes place when the wind-
screen is dry.
If it is necessary to switch on the windscreen wipers in dry weather conditions, always
operate them using washer fluid. !
If the windscreen wipers leave smears on
the windscreen after the vehicle has been
washed in an automatic car wash, this may be
due to wax or other residue. Clean the wind-
screen with washer fluid after an automatic
car wash.
! Intermittent wiping with rain sensor: due to
optical influences and the windscreen becom-
ing dirty in dry weather conditions, the wind-
screen wipers may be activated inadvertently. This could damage the windscreen wiper
blades or scratch the windscreen.
For this reason, you should always switch off
the windscreen wipers in dry weather. 1
$ Windscreen wipers off
2 Ä Intermittent wiping, normal
3 Å Intermittent wiping, frequent
4 ° Continuous wipe, slow
5 ¯ Continuous wipe, fast
B í Single wipe
î Wipe with washer fluid
X Turn the key to position 1or 2in the ignition
lock (Y page 133).
X Turn the combination switch to the corre-
sponding position.
Vehicles with a rain sensor: in theÅor
Ä position, the appropriate wiping frequency
is automatically set according to the intensity of
the rain. In the Åposition, the rain sensor is
more sensitive than in the Äposition, caus-
ing the windscreen wiper to wipe more fre-
quently.
If the wiper blades are worn, the windscreen will no longer be wiped properly. This could mean
you are unable to observe the traffic conditions. Windscreen wipers
121Lights and windscreen wipers Z

Replacing the wiper blades
Important safety notes G
WARNING
If the windscreen wipers begin to move while
you are changing the wiper blades, you can be trapped by the wiper arm. There is a risk of
injury.
Always switch off the windscreen wipers and
ignition before changing the wiper blades.
! Never open the bonnet if a windscreen
wiper arm has been folded away from the
windscreen.
Never fold a windscreen wiper arm without a
wiper blade back onto the windscreen.
Hold the windscreen wiper arm firmly when
you change the wiper blade. If you release the
windscreen wiper arm without a wiper blade
and it falls onto the windscreen, the wind-
screen may be damaged by the force of the
impact.
Mercedes-Benz recommends that you have
the wiper blades changed at a qualified spe-
cialist workshop.
! To avoid damaging the windscreen wiper
blades, make sure that you touch only the
wiper arm of the windscreen wiper.
Replacing the windscreen wiper blades Moving the wiper blades to the vertical
position
On vehicles without KEYLESS-GO or KEY-
LESS‑GO start function:
X Turn the key to position 1or 2in the ignition
lock (Y page 133).
X Set the windscreen wipers to the °posi-
tion on the combination switch.
X When the wiper arms have reached the verti-
cal position, turn the key to position 0in the
ignition lock and remove it.
X Fold the wiper arm away from the windscreen.
On vehicles with KEYLESS-GO or KEY-
LESS‑GO start function:
X Switch off the engine.
X Remove your foot from the brake pedal. X
Set the windscreen wipers to the °posi-
tion on the combination switch.
X Press the Start/Stop button repeatedly until
the windscreen wipers start.
X When the wiper arms have reached the verti-
cal position, press the Start/Stop button.
X Fold the wiper arm away from the windscreen.
Removing the wiper blades X
Hold on to the wiper arm with one hand. With
the other hand, turn the wiper blade in the
direction of arrow :away from the wiper arm
as far as it will go.
X Slide the catch ;in the direction of arrow =
until it engages in the removal position with a noticeable click. X
Remove the wiper blade in the direction of
arrow ?away from the wiper arm. 122
Windscreen wipersLights and windscreen wipers

Problems with the windscreen wipers
Problem
Possible causes/consequences and
M
MSolutions The windscreen wipers
are jammed. Leaves or snow, for example, are obstructing windscreen wiper move-
ment. The wiper motor has been deactivated.
X Switch off the engine.
X Remove the key from the ignition lock.
or, on vehicles with KEYLESS-GO or KEYLESS ‑GO start function:
X Open the driver's door.
The vehicle electronics now have status 0. This is the same as the
key having been removed.
X Remove the cause of the obstruction.
X Switch the windscreen wipers back on. The windscreen wipers
fail completely. The windscreen wiper drive is malfunctioning.
X Select another wiper speed on the combination switch.
X Have the windscreen wipers checked at a qualified specialist work-
shop. The windscreen washer
fluid from the spray noz-
zles no longer hits the
centre of the wind-
screen. The spray nozzles are misaligned.
X Have the spray nozzles adjusted at a qualified specialist workshop. 124
Windscreen wipersLights and windscreen wipers

A
To demist the windscreen (Y page 128)
B To call up the climate control menu of the multimedia system (Y page 288)
C To switch the rear window heating on/off (Y page 129)
D To activate/deactivate synchronisation (Y page 128)
E To activate/deactivate air-recirculation mode manually (Y page 129)
F To activate/deactivate cooling with dehumidification (Y page 127)
G To set the temperature, right (Y page 128)Notes on using automatic climate
control
Optimum use of automatic climate con-
trol The following contains notes and recommenda-
tions on how best to use THERMATIC automatic
climate control.
R Activate climate control using the Ã
rocker switch. The indicator lamp above the
à rocker switch lights up. The "Cooling
with dehumidification" function is activated in
automatic mode.
R Set the temperature to 22 †.
R Use the "Windscreen demisting" function only
briefly until the windscreen is clear again.
R Use the "Air-recirculation mode" function only
briefly, e.g. if there are unpleasant outside
odours or when in a tunnel. The windows
could otherwise mist up as no fresh air is
drawn into the vehicle in air-recirculation
mode.
DYNAMIC SELECT switch (except
Mercedes-AMG vehicles) You can choose between various drive programs
with the DYNAMIC SELECT switch:
R manual transmission (Y page 141)
R automatic transmission (Y page 141)
If you have selected drive program E:
R during heating, the electrical heater booster
is deactivated and heat output is reduced as a
result
R the rear window heating running time is
reduced If you have selected drive program
C,Sor S+,
the current climate settings are maintained.
ECO start/stop function During automatic engine switch-off, the climate
control operates only at a reduced capacity. If
you require the full climate control output, you
can switch off the ECO start/stop function by
pressing the ECO button (Y page 139). Operating the climate control system
Switching the climate control on/off
General notes When climate control is switched off, the air
supply and air circulation are also switched off.
The windows could mist up. Therefore, switch
off climate control only briefly.
Switch on climate control primarily using the
à rocker switch (Y page 127).
Activating/deactivating X
Turn the key to position 2in the ignition lock
(Y page 133).
X To switch on: set the airflow to level 1or
higher using the Hrocker switch.
X To switch off: set the airflow to level 0using
the H rocker switch. 126
Operating the climate control systemClimate control