2015 MERCEDES-BENZ CLA-Class clock

Unlocking the driver's door (mechan-
ical key)
If the vehicle can no longer be locked or
unlocked with the SmartKey or KEYLESS-GO,
use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered (Y page 71).
X Take the mechanical key out of the Smart-
Key (Y page 76).
X Insert the mechanical key into the lock of
the driver's door as far as it will go. X
Turn the mechanical key counter-clockwise
as far as it will go to position 1.
The door is unlocked.
X Turn the mechanical key back and remove
it.
X Insert mechanical key into the SmartKey
(Y page 77). Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the
SmartKey or KEYLESS-GO, use the mechani-
cal key.
X Open the driver's door.
X Close the front-passenger door, the rear
doors and the trunk lid.
X Press the locking button on the driver’s
door (Y page 82).
X Check whether the locking knobs on the
front-passenger door and the rear doors are still visible. Press down the locking
knobs by hand, if necessary.
X Close the driver's door.
X Take the mechanical key out of the Smart-
Key (Y page 76).
X Insert the mechanical key into the lock of
the driver's door as far as it will go. X
Turn the emergency key element clockwise
as far as it will go to position 1.
X Turn the mechanical key back and remove
it.
X Make sure that the doors and the trunk lid
are locked.
X Insert mechanical key into the SmartKey
(Y page 77).
i If you lock the vehicle as described above,
the fuel filler flap is not locked. The anti-
theft alarm system is not armed. Trunk
Important safety notes
G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the
trunk lid is open when the engine is running,
especially if the vehicle is in motion. There is a risk of poisoning.
Always switch off the engine before opening
the trunk lid. Never drive with the trunk lid
open. Trunk
83Opening and closing Z

Changing the front bulbs
Removing and installing the cover in the
front wheel housing You must remove the cover of the front wheel
housing before you can change the front turn signal lamp.
X To remove: switch off the lights.
X Turn the front wheels inwards.
X Turn rotary knob :through 90°.
Cover ;is released.
X Push cover ;down.
X To install: push cover ;up.
X Turn rotary knob :through 90°.
Cover ;is locked.
Low-beam headlamps (halogen head-
lamps) X
Remove the cover in the front wheel hous-
ing (Y page 118).
X Turn housing cover :counter-clockwise
and remove it. X
Turn bulb holder ;counter-clockwise and
pull out.
X Take the bulb out of bulb holder ;.
X Insert the new bulb into bulb holder ;.
X Insert bulb holder ;and turn it clockwise.
X Press on housing cover :and turn it to the
right.
X Replace the cover in the front wheel hous-
ing (Y page 118).
High-beam headlamps/daytime run-
ning lamps/parking lamps and stand-
ing lamps (vehicles with halogen head-
lamps) X
Switch off the lights.
X Open the hood.
X Turn housing cover :counter-clockwise
and remove it.
X Turn bulb ;counter-clockwise and pull
out.
X Insert the new bulb and engage it to the
stop.
X Press on housing cover :and turn it to the
right. 118
Replacing bulbsLights and windshield wipers

Turn signals (halogen headlamps)
X
Switch off the lights.
X Open the hood.
X Turn bulb holder :counter-clockwise and
pull out.
X Take the bulb out of bulb holder :.
X Insert the new bulb into bulb holder :.
X Insert bulb holder :and turn it clockwise
until it engages.
Cornering light function (xenon bulbs) X
Switch off the lights.
X Open the hood.
X Turn housing cover :counter-clockwise
and remove it.
X Turn bulb holder ;counter-clockwise and
pull out.
X Take the bulb out of bulb holder ;.
X Insert the new bulb into bulb holder ;.
X Insert bulb holder ;and turn it clockwise.
X Press on housing cover :and turn it to the
right. Changing the rear bulbs
Opening and closing the side trim pan-
els View of right-hand side trim panel
You must open the side trim panel in the trunk
before you can change the bulbs in the tail
lamps.
X To open: release right or left side trim
panel :at the top and fold it down in the
direction of the arrow.
X To close: insert side panel :.
Tail lamps X
Switch off the lights.
X Open the trunk.
X Open the side trim panel (Y page 119). X
Press retaining clips :at the same time in
the direction of the arrows.
X Carefully remove the bulb holder with the
contacted connectors and the bulbs. Replacing bulbs
119Lights andwindshield wipers Z

Bulb holder
;
Brake lamp
= Brake lamp
? Rear fog lamp
A Backup lamp
B Turn signal
X Brake lamp/rear fog lamp/backup
lamp: remove the corresponding bulb from
the bulb holder.
X Insert the new bulb into the bulb holder.
X Turn signal: press the bulb gently into the
bulb holder, turn it counter-clockwise and
remove it from the bulb holder.
X Insert the new bulb into the bulb holder and
turn it clockwise.
X Reinsert the bulb holder and engage on
retaining clips :.
X Close the side trim panel (Y page 119).Windshield wipers
Switching the windshield wipers
on/off
! Do not operate the windshield wipers
when the windshield is dry, as this could
damage the wiper blades. Moreover, dust
that has collected on the windshield can
scratch the glass if wiping takes place when the windshield is dry.
If it is necessary to switch on the windshield wipers in dry weather conditions, always
use washer fluid when operating the wind-
shield wipers. !
If the windshield wipers leave smears on
the windshield after the vehicle has been
washed in an automatic car wash, wax or
other residues may be the reason for this.
Clean the windshield using washer fluid
after washing the vehicle in an automatic
car wash. Combination switch
1
$ Windshield wiper off
2 Ä Intermittent wipe, low (rain sensor
set to low sensitivity)
3 Å Intermittent wipe, high (rain sensor
set to high sensitivity)
4 ° Continuous wipe, slow
5 ¯ Continuous wipe, fast
B í Single wipe/î Wipes the wind-
shield using washer fluid
X Switch on the ignition.
X Turn the combination switch to the corre-
sponding position.
! Vehicles with a rain sensor: if the wind-
shield becomes dirty in dry weather condi-
tions, the windshield wipers may be activa-
ted inadvertently. This could then damage
the windshield wiper blades or scratch the
windshield.
For this reason, you should always switch
off the windshield wipers in dry weather.
Vehicles with a rain sensor: in the Äor
Å position, the appropriate wiping fre-
quency is automatically set according to the
intensity of the rain. In the Åposition, the
rain sensor is more sensitive than in the Ä120
Windshield wipersLights and windshield wipers

?
Activates/deactivates air-recirculation mode (Y page 135)
A Sets the airflow (Y page 132)
B Switches cooling with air dehumidification on/off (Y page 129)
C Switches the rear window defroster on/off (Y page 134)Notes on using the air-conditioning
system
Air-conditioning system Below, you can find a number of notes and
recommendations to help you use the air-
conditioning system optimally.
R Switch on the air-conditioning system by
turning control knob Aclockwise to the
desired position (except position 0).
R Set the temperature to 72 ‡ (22 †).
R Recommendation for avoiding misted
windows at low exterior temperatures
or in rain: switch on the ¿cooling with
dehumidification function (Y page 129).
Set air distribution to ¯and if possible
switch off PandO (Ypage 132).
Deactivate air-recirculation mode e
(Y page 135).
Set airflow control Ato a setting between
3 and 6(Y page 132).
R Recommendation for rapid cooling or
heating of the vehicle interior: briefly set
airflow control Ato a setting between 3
and 6(Y page 132).
R Recommendation for a constant vehi-
cle interior temperature: set airflow con-
trol Ato a setting between 1and 3
(Y page 132).
R Recommendation for air distribution in
winter: select the Oand¯ settings
(Y page 132).
Recommendation for air distribution in
summer: select the PorP and
¯ settings (Y page 132).
R Only use the "Windshield defrosting" func-
tion 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 oth-
erwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
R If you change the settings of the climate
control system, the climate status display
appears for approximately three seconds
at the bottom of the screen in the Audio/
COMAND display (see separate operating
instructions). You will see the current set-
tings of the various climate control func-
tions.
ECO start/stop function During automatic engine switch-off, the cli-
mate control system only operates at a
reduced capacity. If you require the full cli-
mate control output, you can switch off the
ECO start/stop function by pressing the ECO button (Y page 146). 126
Overview of climate control systemsClimate control

R
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 deac- tivated with the ignition switched off.
R If you change the settings of the climate
control system, the climate status display
appears for approximately three seconds
at the bottom of the screen in the Audio/
COMAND display (see separate operating
instructions). You will see the current set-
tings of the various climate control func-
tions.
ECO start/stop function During automatic engine switch-off, the cli-
mate control system only operates at a
reduced capacity. If you require the full cli-
mate control output, you can switch off the
ECO start/stop function by pressing the ECO
button (Y page 146). Operating the climate control sys-
tems Switching climate control on/off
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
Air-conditioning system X
Turn the SmartKey to position 2in the igni-
tion lock (Y page 141).
X To switch on: turn controlAclockwise to
the desired position (except position 0)
(Y page 125).
X To switch off: turn controlAcounter-
clockwise to position 0(Y page 125). Dual-zone automatic climate control X
Turn the SmartKey to position 2in the igni-
tion lock (Y page 141).
X To activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to
automatic mode.
or
X Press the ^button.
The indicator lamp in the ^button goes
out. The previously selected settings are
restored.
X To deactivate: press the^button.
The indicator lamp in the ^button lights
up.
i Dual-zone automatic climate control:
switch on climate control primarily using
the à button. Activating/deactivating cooling with
air dehumidification
General notes If you deactivate the "Cooling with air-dehu-
midification" function, the air inside the vehi-
cle will not be cooled. The air inside the vehi-cle will also not be dehumidified. The win-
dows can fog up more quickly. Therefore, only
deactivate the "Cooling with air-dehumidifi-
cation" function briefly.
The "Cooling with air dehumidification" func-
tion is only available when the engine is run-
ning. 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 malfunc- tion. Operating the climate control systems
129Climate control

Problems with the "Cooling with air dehumidification" function
Problem
Possible causes/consequences and
M
MSolutions The indicator lamp in
the
¿ button
flashes three times or
remains off. The "Cool-
ing with air dehumidifi-
cation" function cannot
be switched on. Cooling with air dehumidification has been deactivated due to a
malfunction.
X Visit a qualified specialist workshop. Setting climate control to automatic
General notes The automatic function is only available in
conjunction with dual-zone automatic climate
control.
In automatic mode, the set temperature is
maintained automatically at a constant level. The system automatically regulates the tem-
perature of the dispensed air, the airflow and
the air distribution.
The automatic mode functions optimally
when the "Cooling with air dehumidification"
function is activated. If necessary, cooling
with air dehumidification can be deactivated.
If you deactivate the "Cooling with air-dehu-
midification" function, the air inside the vehi-
cle will not be cooled. The air inside the vehi- cle will also not be dehumidified. The win-
dows can fog up more quickly. Therefore, only deactivate the "Cooling with air-dehumidifi-
cation" function briefly.
Setting climate control to automatic X
Turn the SmartKey to position 2in the igni-
tion lock (Y page 141).
X Set the desired temperature.
X To activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Automatic air distribution and airflow
are activated. X
To switch to manual mode: press the
É orË button.
or X Press the KorI button.
The indicator lamp in the Ãbutton goes
out. Automatic air distribution and airflow
are deactivated. Setting the temperature
Air-conditioning system You can set the temperature for the entire
vehicle. The set temperature is automatically
maintained at a constant level.
X Turn the SmartKey to position 2in the igni-
tion lock (Y page 141).
X To increase/reduce: turn control:
clockwise or counter-clockwise
(Y page 125). Only change the temperature
setting in small increments. Start at 72 ‡
(22 †).
Dual-zone automatic climate control Different temperatures can be set for the
driver's and front-passenger sides. The set
temperature is automatically maintained at a
constant level.
X Turn the SmartKey to position 2in the igni-
tion lock (Y page 141).
X To increase/reduce: turn thumbwheel:
or E to the left or right (Y page 127). Only Operating the climate control systems
131Climate control

change the temperature setting in small
increments. Start at 72 ‡ (22 †). Setting the air distribution
Air-conditioning system Air distribution settings
¯
Directs air through the defroster vents
P Directs air through the center and side
air vents
O Directs air through the footwell air
vents
i You can also activate several air distribu-
tion settings simultaneously. To do this,
press multiple air distribution buttons. The air is then directed through various vents.
i Regardless of the air distribution setting,
airflow is always directed through the side
air vents. The side air vents can only be
closed if the adjusters are turned clockwise until they engage.
Setting the air distribution X Turn the SmartKey to position 2in the igni-
tion lock (Y page 141).
X Press one or more of the P,O,¯
buttons.
The corresponding indicator lamp lights up briefly.
Dual-zone automatic climate control Air distribution settings
¯
Directs air through the defroster vents
P Directs air through the center and side
air vents
O Directs air through the footwell air
vents
S Directs air through the center, side and
footwell vents
b Directs air through the defroster, cen-
ter and side air vents a
Directs air through the defroster and
footwell vents
_ Directs air through the defroster, cen-
ter, side and footwell vents
i Regardless of the air distribution setting,
airflow is always directed through the side
air vents. The side air vents can only be
closed if the adjusters are turned clockwise until they engage.
Setting the air distribution
X Turn the SmartKey to position 2in the igni-
tion lock (Y page 141).
X Press the ÉorË button repeatedly
until the desired symbol appears in the dis- play. Setting the airflow
Air-conditioning system X
Turn the SmartKey to position 2in the igni-
tion lock (Y page 141).
X To increase/reduce: turn controlA
clockwise or counter-clockwise
(Y page 125).
Dual-zone automatic climate control X
Turn the SmartKey to position 2in the igni-
tion lock (Y page 141).
X To increase/reduce: press theKor
I button. Switching the ZONE function on/off
This function is only available with dual-zone
automatic climate control.
X To activate: press theábutton.
The indicator lamp in the ábutton lights
up.
The temperature setting for the driver's
side is not adopted for the front-passenger
side. 132
Operating the climate control systemsClimate control