lights MERCEDES-BENZ C CLASS 2016 Owner's Manual

Exterior lighting
General notes If you wish to drive during the daytime without
lights, switch off the daytime running lamps
function in the on-board computer
( Y
page 250).
Setting the exterior lighting
Setting options Exterior lighting can be set using the: R
light switch R
combination switch ( Y
page 119)R
on-board computer ( Y
page 250)
Light switch Operation
G c
Left-hand standing lampsH d
Right-hand standing lampsI `
Parking lamps, license plate and
instrument cluster lightingJ X
Automatic headlamp mode, controlled
by the light sensor
K X
Low-beam/high-beam headlamps

light switch to the ` position, the daytime
running lamps and parking lamps switch on.
If the engine is running and you turn the light
switch to the X position, the manual settings
take precedence over the daytime running
lamps.
USA only:
The daytime running lamps improve the visibility
of your vehicle during the day. To do this, the
daytime running lamps function must be
switched on using the on-board computer
( Y
page 250).
If the engine is running and you turn the light
switch to the ` or X position, the manual
settings take precedence over the daytime run-
ning lamps.
Low-beam headlamps Even if the light sensor does not detect that it is
dark, the parking lamps and low-beam head-
lamps switch on when the ignition is switched on
and the light switch is set to the X position.
This is a particularly useful function in the event
of rain and fog. X
To switch on the low-beam headlamps:
turn the SmartKey in the ignition lock to posi-
tion 2 or start the engine.X
Turn the light switch to the X position.
The green X indicator lamp in the instru-
ment cluster lights up.
Rear fog lamp The rear fog lamp improves visibility of your
vehicle for the traffic behind in the event of thick
fog. Please take note of the country-specific
regulations for the use of rear fog lamps. X
To switch on the rear fog lamp: turn the
SmartKey in the ignition lock to position 2 or
start the engine. X
Turn the light switch to the X or X
position. X
Press the ^ button.
The yellow ^ indicator lamp in the instru-
ment cluster lights up. X
To switch off the rear fog lamp: press the
^ button.
The yellow
^ in dicator lamp in the instru-
ment cluster goes out. Parking lamps
! If the battery has been excessively dis-
charged, the parking lamps or standing lamps
are automatically switched off to enable the
next engine start. Always park your vehicle
safely and sufficiently lit according to legal
standards. Avoid the continuous use of the
` parking lamps for several hours. If pos-
sible, switch on the d right or the c left
standing lamp. X
To switch on: turn the light switch to the
` position.
The green ` indicator lamp in the instru-
ment cluster lights up.
Standing lamps Switching on the standing lamps ensures the
corresponding side of the vehicle is illuminated. X
To switch on the standing lamps: the
SmartKey should not be in the ignition lock or
it should be in position 0 .X
Turn the light switch to the c (left-hand
side of the vehicle) or d ((right-hand side
of the vehicle) position.
Combination switch
C
High-beam headlamps
D
Turn signal, right

Control panel in the grab handle (rear
compartment)
C
Reading lampD
= To switch the reading lamp on/off
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 when the SmartKey is in position 2 in the
ignition lock.
The color, brightness and display lighting for the
ambient lighting are set using the multimedia
system (see the separate operating instruc-
tions).
Automatic interior lighting control X
To switch on/off: press the 3 button.
When the automatic interior lighting control is
activated, 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 SmartKey from the ignition lock
The interior light is activated for a short while
when the SmartKey is removed from the ignition
lock. This delayed switch-off can be adjusted via
the multimedia system (see the separate oper-
ating instructions). Replacing bulbs
Important safety notes
G WARNING
Bulbs, lamps and connectors can get very hot
when operating. If you change a bulb, you
could burn yourself on these components.
There is a risk of injury.
Allow these components to cool down before
changing a bulb.
Do not use a bulb that 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
Only operate bulbs in enclosed lamps designed
for that purpose. Only install 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.
Only replace the bulbs listed ( Y
page 123).
Have the bulbs that you cannot replace 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.
Veh icles with LED headlamps: t he front and
rear light clusters of your vehicle are equipped
with LED light bulbs. Do not replace the bulbs
yourself. Contact a qualified specialist work-
shop which has the necessary specialist knowl-
edge and tools to carry out the work required.122
Replacing bulbs
Lights and windshield wipers

X
Turn bulb holder D counter-clockwise and
pull out. X
Pull the bulb out of bulb holder D .X
Insert the new bulb into bulb holder D .X
Insert bulb holder D and turn it clockwise.X
Press on housing cover C and turn it to the
right.
High-beam headlamps X
Switch off the lights. X
Open the hood. X
Turn housing cover C counter-clockwise and
remove it. X
Turn bulb holder D counter-clockwise and
pull out. X
Pull the bulb out of bulb holder D .X
Insert the new bulb into bulb holder D .X
Insert bulb holder D and turn it clockwise.X
Press on housing cover C and turn it clock-
wise.
Turn signal X
Remove the cover in the front wheel housing
( Y
page 123). X
Turn housing cover C counter-clockwise and
remove it. X
Turn bulb holder D counter-clockwise,
unlock it and pull out. X
Pull the bulb out of bulb holder D .X
Insert the new bulb into bulb holder D .X
Insert bulb holder D and turn it clockwise.X
Press on housing cover C turn clockwise and
lock. X
Replace the cover in the front wheel housing
( Y
page 123).
Changing the rear bulbs
Opening and closing the side trim pan-
els
Example: right-hand side paneling
You must open the side paneling in the trunk
before you can replace the bulbs in the tail
lamps. X
To open: release right or left side paneling C
at the top and fold it down in the direction of
the arrow. X
To close: insert side paneling C .
Tail lamps X
Switch off the lights. X
Open the trunk. X
Open the side trim panel ( Y
page 124).124
Replacing bulbs
Lights and windshield wipers

Problems with the windshield wipers Problem
Possible causes/consequences and P Solutions
The windshield wipers
are jammed. Leaves or snow, for example, may be obstructing the windshield wiper
movement. The wiper motor has been deactivated. X
For safety reasons, you should remove the SmartKey from the igni-
tion lock.
or X
Switch off the engine using the Start/Stop button and open the
driver's door. X
Remove the cause of the obstruction. X
Switch the windshield wipers back on.
The windshield wipers
fail completely. The windshield wiper drive is malfunctioning. X
Select another wiper speed on the combination switch. X
Have the windshield wipers checked at a qualified specialist work-
shop.
The windshield washer
fluid from the spray noz-
zles no longer hits the
center of the windshield. The spray nozzles are misaligned. X
Have the spray nozzles adjusted at a qualified specialist workshop.128
Windshield wipers
Lights and windshield wipers

Notes on using automatic climate
control
Optimum use of the automatic climate
control The following contains notes and recommenda-
tions on optimum use of the dual-zone or 3-zone
automatic climate control. R
Activate climate control using the X
rocker switch. The indicator lamp above the
X rocker switch lights up. The "Cooling
with air dehumidification" function is not acti-
vated automatically in automatic mode. If
necessary, activate this function
( Y
page 133).R
Set the temperature to 72 ‡ (22 †). R
Only use the "Windshield defrosting" function
briefly until the windshield is clear again. R
Only use air-recirculation mode briefly, e.g. if
there are unpleasant outside odors or when in
a tunnel. The windows could otherwise fog up,
since no fresh air is drawn into the vehicle in
air-recirculation mode. R
Vehicles with 3-zone automatic climate con-
trol or PLUG-IN HYBRID: use the "residual
heat" function if you want to heat or ventilate
the vehicle interior when the ignition is
switched off. The residual heat function can
only be activated or deactivated with the igni-
tion switched off. The residual heat function is
switched off when the ignition is switched on.
DYNAMIC SELECT switch (except
Merc edes-AMG vehicles)You can choose between various drive programs
with the DYNAMIC SELECT switch
( Y
page 154).
If you have selected drive program E :R
the cooling output is reduced when cooling R
when heating, the electrical heater booster is
deactivated and heat output is reduced as a
result R
the rear window defroster running time is
reduced
If you have selected drive program C , S or S+ ,
the current climate settings are maintained. ECO start/stop function During automatic engine switch-off, the climate
control system only operates at a reduced capa-
city. If you require the full climate control output,
you can switch off the ECO start/stop function
by pressing the ECO button ( Y
page 151).
Operating the climate control sys-
tems
Activating/deactivating climate con-
trol
General notes When the climate control is switched off, the air
supply and air circulation are also switched off.
The windows could fog up. Therefore, switch off
climate control only briefly
Switch on climate control primarily using the
X rocker switch ( Y
page 133).
Switching on/off X
Turn the SmartKey to position 2 in the ignition
lock ( Y
page 146). X
To switch on: set the airflow to level 1 or
higher using the H rocker switch.X
To switch off: set the airflow to level 0 using
the H rocker switch.
i 3-zone automatic climate control: when cli-
mate control is switched off, "OFF" appears in
the rear-compartment display.132
Operating the climate control systems
Climate control

Switching cooling with air dehumidification on/off
General notes If you deactivate the "Cooling with air-dehumidification" function, the air inside the vehicle will not
be cooled. The air inside the vehicle will also not be dehumidified. The windows can fog up more
quickly. Therefore, deactivate the cooling with air-dehumidification function only briefly.
For vehicles without a hybrid drive system, the "Cooling with air dehumidification" function is avail-
able when the engine is running. For hybrid vehicles, the "Cooling with air dehumidification" function
is also available via the electric refrigerant compressor when the engine is not running. The air inside
the vehicle is cooled and dehumidified according to the temperature selected.
Condensation may drip from the underside of the vehicle when it is in cooling mode. This is normal
and not a sign that there is a malfunction.
Activating/deactivating X
Press the Z rocker switch up or down.
The indicator lamp above the rocker switch lights up or goes out.
Problems with the "Cooling with air dehumidification" function Problem
Possible causes/consequences and P Solutions
The indicator lamp over
the Z rocker switch
flashes three times or
remains off. The cooling
with air dehumidification
function cannot be acti-
vated via the multimedia
system any longer
( Y
page 303). Cooling with air dehumidification has been deactivated due to a mal-
function. X
Visit a qualified specialist workshop.
Setting climate control to automatic
General notes In automatic mode, the set temperature is main-
tained automatically at a constant level. The
system automatically regulates the temperature
of the dispensed air, the airflow and the air dis-
tribution.
The "Cooling with air dehumidification" function
is activated automatically in automatic mode. Automatic control X
Turn the SmartKey to position 2 in the ignition
lock ( Y
page 146). X
Set the desired temperature using the

above the X rocker switch goes out. The
function which has not been changed manually,
however, continues to be controlled automati-
cally. When the manually set function switches
back to automatic mode, the indicator lamp
above the X rocker switch lights up again.
Adjusting the climate mode settings This function is only available with dual-zone
automatic climate control on vehicles for Can-
ada.
In automatic mode you can select the following
airflow settings for the driver's and front-
passenger areas:
FOCUS high airflow, slightly cooler setting
MEDIUM medium airflow, standard setting
DIFFUS El ow airflow, slightly warmer and draft-
free settingX
To set: set the climate mode using the mul-
timedia system ( Y
page 303).
Setting the temperature
Dual-zone automatic climate control Dual-zone automatic climate control: the tem-
perature for the driver's and front-passenger
side can be set individually. X
Turn the SmartKey to position 2 in the ignition
lock ( Y
page 146).X
To increase or reduce: press the

Defrosting th e windows
Windows fogged up on th e insideX
Activat e th e "Coolin g wit h air dehumidifica-
tion " function wit h th e Z rocker switch .X
Switc h on automatic mode usin g th e X
rocker switch .X
If th e windows continue to fo g up, activat e th e
"Windshield defrosting" function usin g th e
d rocker switch .
i You should only selec t this setting until th e
windshield is clear again .
Windows fogged up on th e outsid eX
Activat e th e windshield wipers .X
Switc h on automatic mode usin g th e X
rocker switch .
i If you clean th e windows regularly, they do
no t fo g up so quickly.
Rea r window defroster
General notes The rea r window defroster has a hig h curren t
draw. You should therefore switch it of f as soo n
as th e rea r window is clear . Otherwise , th e rea r
window defroster switches of f automatically
after severa l minutes.
If th e battery voltage is to o low, th e rea r window
defroster may switch off.
Switchin g on/of fX
Tur n th e SmartKey to position 2 in th e ignition
loc k ( Y
page 146).X
Press th e l rocker switch up or down .
The indicator lamp abov e th e l rocker
switch lights up or goe s out .136
Operating the climate control systems
Climate control

Problems with the rear window defroster Problem
Possible causes/consequences and P Solutions
The rear window
defroster has deactiva-
ted prematurely or can-
not be activated. The battery has not been sufficiently charged. X
Switch off any consumers that are not required, e.g. reading lamps,
interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window defroster
can be activated again.
Switching air-recirculation mode
on/off
General notes You can also temporarily deactivate the flow of
fresh air manually if unpleasant odors are enter-
ing the vehicle from outside. The air already
inside the vehicle will then be recirculated.
If you switch on air-recirculation mode, the win-
dows can fog up more quickly, in particular at
low temperatures. Only use air-recirculation
mode briefly to prevent the windows from fog-
ging up.
Switching on/off X
Turn the SmartKey to position 2 in the ignition
lock ( Y
page 146).X
To activate: press the r rocker switch up
or down.
The indicator lamp above the r rocker
switch lights up.
Air-recirculation mode switches on automati-
cally: R
at high outside temperatures R
at high levels of pollution (3-zone automatic
climate control only) R
in a tunnel (vehicles with a navigation system
only)
The indicator lamp above the r rocker
switch is not lit when automatic air-recirculation
mode is activated. Outside air is added after
about 30 minutes. X
To deactivate: press the r rocker switch
up or down.
The indicator lamp above the r rocker
switch goes out. Air-recirculation mode deactivates automati-
cally: R
after approximately five minutes at outside
temperatures below approximately 41 ‡
(5 †) R
after approximately five minutes if cooling
with air dehumidification is deactivated R
after approximately 30 minutes at outside
temperatures above approximately 41 ‡
(5 †) if the "Cooling with air dehumidifica-
tion" function is activated
Switching the residual heat on or off
General notes The residual heat function is only available with
3-zone automatic climate control on vehicles for
Canada.
Once the engine is switched off, it is possible to
make use of the residual heat of the engine to
continue heating or ventilating the front com-
partment of the vehicle for approximately
30 minutes. The heating or ventilation time
depends on the interior temperature that has
been set.
Switching on/off X
Turn the SmartKey to position 0 in the ignition
lock or remove it ( Y
page 146).X
To switch on: press the ! rocker switch
up or down.
The indicator lamp above the ! rocker
switch lights up.
The blower will run at a low speed regardless of
the airflow setting.
If you activate the residual heat function at high
temperatures, only the ventilation will be acti-
vated. The blower runs at medium speed.Operating the climate control systems 137
Climate control