2013 MERCEDES-BENZ C-Class SEDAN set clock

Automatic locking feature
The vehicle is locked automatically when the
ignition is switched on and the vehicle's
wheels are turning at a speed in excess of
9 mph (15 km/h).
You could therefore be locke dout if:
R the vehicle is being pushed.
R the vehicle is being towed.
R the vehicle is on a roller dynamometer. X
To deactivate: press and hold button 0002
for about five seconds until a tone sounds.
X To activate: press and hold button 0003for
about five seconds until a tone sounds.
i If you press one of th etwo buttons and
do not hear a tone, the relevant setting has
already been selected.
You can also switch the automatic locking
function on and off using the on-board
computer (Y page 211). Unlocking the driver's door
(mechanical key)
If the vehicle can no longer be unlocked with
the SmartKey, use the mechanical key.
If you use the mechanical key to unloc kand
open the driver's door, the anti-thef talarm
system will be triggered ( Ypage 71).
X Take the mechanical key out of the
SmartKey (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
to position 0005.
The door is unlocked.
X Turn the mechanical key back and remove
it.
X Insert the mechanical key into the
SmartKey. Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the
SmartKey, use the mechanical 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 (Y page 80).
X Check whether the locking knobs on the
front-passenger door and the rear doors
are still visible. Press down the locking
knobs manually, if necessary ( Ypage 79).
X Close the driver's door.
X Take the mechanical key out of the
SmartKey (Y page 76).
X Insert the mechanical key into the lock of
the driver's door as far as it will go. Doors
81Opening and closing Z

Setting the temperature
Dual-zone automatic climate control Different temperatures can be set for the
driver's and front-passenger sides.
X Turn the SmartKey to position 2in the
ignition lock (Y page 141).
X To increase/reduce: turn control0002or
0020 clockwise or counter-clockwise
(Y page 127).
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †).
3-zone automatic climate control 7Automatic climate control zones
You can select different temperature settings
for the driver's and front-passenger sides as
well as for the rear compartment.
X Turn the SmartKey to position 2in the
ignition lock (Y page 141).
X To increase/reduce the temperature in
the front: turn control 0002or0020 clockwise
or counter-clockwise (Y page 130).
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †).
X To increase/reduce the temperature in
the rear compartment using the front
control panel: press the0003button.
The indicator lamp in the 0003button goes
out. X
Turn control 0002clockwise or counter-
clockwise (Y page 130).
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †).
X To increase/reduce the temperature in
the rear compartment using the rear
control panel: press the0003or0004
button on the rear control panel.
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †).
i If you leave the vehicle parked for longer
than 30 minutes, the temperature setting
for the rear compartment then switches
back to 72 ‡ (22 †). Setting the air distribution
Air distribution settings 0019
Directs air through the center and side
air vents
0018 Directs air through the footwell air
vents
001A Directs air through the center, side and
footwell vents
0006 Directs air through the defroster vents
0014 Directs the airflow through the
defroster, center and side air vents 8
0013 Directs air through the defroster and
footwell vents
0015 Directs air through the defroster,
center, side and footwell vents 8
i Regardless of the air distribution setting,
airflow is always directed through the side
air vents. The side air vents can only be
closed when the controls on the side air
vents are turned downwards.
7 Canada only.
8 Canada only. Operating the climate control systems
133Climate control

X
Press the 0004button.
The indicator lamp in the 0007button goes
out. Airflow and air distribution are set to
automatic mode.
or
X Turn temperature control 0002or0020
clockwise or counter-clockwise
(Y page 127), (Y page 130).
or
X Press the 0017or0016 button. MAX COOL maximum cooling
The MAX COOL function is only available in
vehicles for the USA.
MAX COOL is only operational when the
engine is running.
When you activate MAX COOL, climate
control switches to the following functions:
R maximum cooling
R maximum airflow
R air-recirculation mode on
X To activate: press the0001button.
The indicator lamp in the button lights up.
X To activate: press the0001button again.
The indicator lamp goes out. The previously
selected settings are restored. Defrosting the windows
Windows fogged up on the inside X
Activate the 0005cooling with air
dehumidification function.
X Activate automatic mode 0004.
X Adjust the side air vents so that the warmed
air is directed to the side windows.
X If the windows continue to fog up, activate
the "windshield defrosting" function
(Y page 134).
i You should only select this setting until
the windshield is clear again. Windows fogged up on the outside X
Activate the windshield wipers.
X Press the 0015button repeatedly until the
0018 or0019 symbol appears in the
display.
X Adjust the side air ventss o that no air is
directed to the side windows. Rear window defroster
Activating/deactivating The rear window defroster has a high current
draw. You should therefore switch it off as
soon as the rear window is clear. Otherwise,
the rear window defroster switches off
automatically after several minutes.
If the battery voltage is too low, the rear
window defroster may switch off.
X
Turn the SmartKey to position 2in the
ignition lock (Y page 141).
X Press the 000Bbutton.
The indicator lamp in the 000Bbutton lights
up or goes out. Operating the climate control systems
135Climate control

depends on the airflow and air distribution
settings.
! Close the air vent when heating the
vehicle.
At high outside temperatures, open the air
vent and activate the "cooling with air
dehumidification" function .Otherwise,
temperature-sensitive items stored in the
glove bo xcould be damaged. 0002
Air vent thumbwheel
0003 Air vent
X To open/close: turn thumbwheel 0002
clockwise or counter-clockwise. Setting the rear-compartment air
vents 0002
Rear-compartment air vent thumbwheel
0003 Rear-compartment air vent, right
0022 Rear control unit, only with 3-zone
automatic climate control 10
0021 Rear-compartment air vent, left X
To open/close: turn thumbwheel 0002up or
down.
10 Only for Canada. 138
Setting the air ventsClimate control

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 25).Important safety notes
G
WARNING
If you operate information systems and
communication equipment integrated in the
vehicle while driving, you will be distracted
from traffic conditions. You could also lose
control of the vehicle. There is a risk of an
accident.
Only operate the equipment when the traffic
situatio npermits .Ifyou are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the
equipment when the vehicle is stationary. G
WARNING
If the instrument cluster has failed or
malfunctioned, you may not recognize
function restrictions in systems relevant to
safety. The operating safety of your vehicle
may be impaired. There is a risk of an
accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop
immediately.
You must observe the legal requirements for
the country in which you are currently driving
when operating the on-board computer.
The on-board computer only shows messages
or warnings from certain systems in the multifunction display
.You should therefore
make sure your vehicle is operating safely at
all times. Otherwise, a vehicle that is not
operating safely may cause an accident.
For an overview, see the instrument panel
illustration (Y page 31). Displays and operation
Instrument cluster lighting
The lighting in the instrument cluster, in the
displays and the controls in the vehicle
interior can be adjusted using the brightness
control knob.
The brightness control knob is located on the
bottom left of the instrument cluster
(Y page 31).
X Turn the brightness control knob clockwise
or counter-clockwise.
If the light switch is set to 0004,0014or
000B, the brightness is dependent upon
the brightness of the ambient light.
i The light sensor in the instrument cluster
automatically controls the brightness of
the multifunction display.
In daylight, the displays in the instrument
cluster are not illuminated. Coolant temperature display
G
WARNING
Opening the hood when the engine is
overheated or when there is a fire in the
engine compartment could expose you to hot
gases or other service products. There is a
risk of injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
The coolant temperature gauge is in the
instrument cluster on the left-hand side. 198
Displays and operationOn-board computer and displays

Otherwise, the vehicle's electronic
system may be damaged.
R the transmission is locked in position P
after disconnecting the battery. The
vehicle is secured against rolling away.
You can then no longer move the vehicle.
The battery and the cover of the positive
terminal clamp must be installed securely
during operation.
Comply with safety precautions and take
protective measures when handling
batteries. Risk of explosion.
Fire, open flames and smoking are
prohibited when handling the
battery. Avoid creating sparks.
Battery acid is caustic. Avoid
contact with skin, eyes or clothing.
Wear suitable protective clothing,
especially gloves, apron and
faceguard.
Rinse any acid spills immediately
with clear water. Contact a
physicianifn
ecessary. Wear eye protection.
Keep children away.
Observe this Operator's Manual.
In order for the battery to achieve the
maximum possible service life, it must always
be sufficiently charged.
Have the battery condition of charge checked
more frequently if you use the vehicle mainly
for short trips or if you leave it standing idle
for a lengthy period. Consult a qualified specialist workshop if you wish to leave your
vehicle parked for a long period of time.
Like other batteries, the vehicle battery may
discharge over time if you do not use the
vehicle. In this case, have the battery
disconnected at a qualified specialist
workshop. You can also charge the battery
with a charger recommended by Mercedes-
Benz. Contac
taqualified specialist workshop
for further information.
i Remove the SmartKey if you park the
vehicle and do not require any electrical
consumers. The vehicle will then use very
little energy, thus conserving battery
power.
i If the power supply has been interrupted,
e.g. if you reconnec tthe battery, you will
have to:
R set the clock; see the separate operating
instructions.
On vehicles with COMAND and a
navigation system, the clock is set
automatically.
R reset the function for folding the exterior
mirrors in/out automatically by folding
the mirrors out once (Y page 104)11
. Charging the battery
G
WARNING
During charging and jump-starting, explosive
gases can escape from the battery. There is a
risk of an explosion.
Particularly avoid fire, open flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting.
Do not lean over a battery. G
WARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with the skin, eyes or clothing.
Do not inhale any battery gases. Do not lean
over the battery. Keep children away from
11 This function is only available in vehicles for Canada. 300
Battery (vehicle)Breakdown assistance

Installing/removing the towing eye
Installing the towing eye G
WARNING
The exhaust tail pipe may be very hot .There
is a risk of burns when removing the rear
cover.
Do not touch the exhaust pipe. Take particular
care when removing the rear cover.
X Remove the towing eye from the vehicle
tool kit (Y page 296).
The mountings for the removable towing eyes
are located in the bumpers. They are at the
front and at the rear, behind the covers. X
Press the mark on cover 0002inwards in the
direction of the arrow.
X Take cover 0002off the opening.
X Screw in and tighten the towing eye
clockwise to the stop.
Removing the towing eye X
Unscrew and remove the towing eye.
X Attach cover 0002to the bumper and press
until it engages.
X Place the towing eye in the vehicle tool kit. Towing the vehicle with the rear axle
raised
Only possible for vehicles without
4MATIC.
When towing your vehicle with the rear axle
raised, it is important that you observe the
safety instructions (Y page 304).
! The ignition must be switched off if you
are towing the vehicle with the rear axle
raised. Intervention by ESP ®
could
otherwise damage the brake system.
X Switch on the hazard warning lamps
(Y page 113).
X Turn the SmartKey to position 0in the
ignition lock and remove the SmartKey
from the ignition lock.
X When leaving the vehicle, take the
SmartKey or the KEYLESS-GO key with you. Towing
avehicle with both axles on
the ground
It is importan tthat you observe the safety
instructions when towing away your vehicle
(Y page 304).
X Switch on the hazard warning lamps
(Y page 113).
i When towing with the hazard warning
lamps switched on, use the combination
switch as usual to signal a change of
direction. In this case, only the indicator
lamps for the direction of travel flash. After
resetting the combination switch, the
hazard warning lamp starts flashing again.
X Turn the SmartKey to position 2in the
ignition lock.
X When the vehicle is stationary, depress the
brake pedal and keep it depressed.
X Shift the automatic transmission to
position N.
X Release the brake pedal.
X Release the parking brake. Towing and tow-starting
305Breakdown assistance Z