2011 MERCEDES-BENZ C-Class clock

Child-proof locksRear doors ....................................... 60
Children
In the vehicle ................................... 55
Restraint systems ............................ 56
Child seat
Automatic recognition .....................46
Automatic recognition/air bag
deactivation, self-test ......................48
Display message ............................ 185
LATCH-type (ISOFIX ) child seat
anchors ............................................ 58
Special seat belt retractor ...............58
Top Tether ....................................... 59
Troubleshooting ............................... 49
Cigarette lighter ................................ 224
Classification system for
occupants (OCS) Faults ............................................... 45
Operation ......................................... 41
System self-test ............................... 44
Climate control
Activating/deactivating .................122
Activating/deactivating air-
recirculation mode .........................125
Controlling automatically ...............123
Cooling with air dehumidification ..122
Defrosting the windshield ..............124
Demisting the windows .................. 125
Dual-zone automatic climate
control ........................................... 121
Important safety information .........120
Indicator lamp ................................ 123
Maximum cooling .......................... 124
Problems with "cooling with air
dehumidification" ........................... 123
Problems with the rear window
heating .......................................... 125
Refrigerant ..................................... 309
Setting the air distribution .............123
Setting the airflow .........................124
Setting the air vents ......................126
Setting the temperature ................123
Switching the MONO function on/
off .................................................. 124
Switching the rear window
heating on/off ............................... 125
Clock (on-board computer) ............... 179Cockpit ................................................. 25
Combination switch .......................... 108
Compass ............................................ 235
Consumption statistics (on-board
computer) .......................................... 170
Convenience closing feature .............. 84
Convenience opening feature ............ 84
Coolant (engine) Checking the level .........................240
Display message ............................ 194
Notes ............................................. 310
Temperature (on-board computer) . 171
Temperature gauge ........................ 166
Warning lamp ................................. 210
Cooling
see Climate control
Cornering light (display message) ... 191
Crash-responsive emergency
lighting ............................................... 111
Cruise control Cruise control lever .......................156
Display message ............................ 197
Function/notes ............................. 156
Cup holder ......................................... 220
Center console .............................. 221
Rear compartment .........................221
Current fuel consumption (on-
board computer) ............................... 170
Customer Assistance Center (CAC) ............................................... 21
Customer Relations Department ....... 21
D
Dashboard see Cockpit
Date (on-board computer) ................ 179
Daytime running lamps Display message ............................ 194
Switching on/off (on-board
computer) ...................................... 180
Delayed switch-off
Exterior lighting (on-board
computer) ...................................... 180
Interior lighting (on-board
computer) ...................................... 180
Digital speedometer ......................... 171
Display (cleaning instructions) ........ 247
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Instrument cluster
Overview
FunctionPage:Fuel gauge;Coolant temperature gauge166=Speedometer167?Segments167AMultifunction display168BTachometer167COutside temperature3167DOutside temperature167Additional speedometer 3179FunctionPageEGear indicator and drive
program display 3
139
FClock179GBrightness control knob for
the instrument cluster
lighting: turn clockwise or
anti-clockwise3 Vehicles with automatic transmission.26Instrument clusterAt a glance
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lock yourself out if the vehicle is being
pushed, towed, or located on a test rig.
XTo deactivate: press and hold button :
for about five seconds until a tone sounds.
XTo activate: press and hold button ; for
about five seconds until a tone sounds.
iWhen you push either of the two buttons
and an audible warning signal does not
sound, the relevant setting has already
been selected.
On vehicles with a luxury multifunction
steering wheel, you can also activate and
deactivate the automatic locking using the
on-board computer (Y page 181).
Unlocking the driver's door
(mechanical key)
If the vehicle can no longer be unlocked
centrally with the SmartKey or KEYLESS-GO:
XTake the mechanical key out of the
SmartKey (Y page 73).
XInsert the mechanical key into the lock of
the driver's door as far as it will go.
XTurn the mechanical key counter-clockwise
to position 1.
The door is unlocked.
XTurn the mechanical key back and remove
it.
Locking the vehicle (mechanical key)
Emergency locking
If the vehicle can no longer be locked
centrally with the SmartKey or KEYLESS-GO:
XOpen the driver's door.XClose the front-passenger door, the rear
doors and the trunk lid.
XPress the locking button (Y page 78).XMake sure that the locking knobs on the
doors are still visible. Press down the
locking knobs by hand, if necessary.
XClose the driver's door.XTake the mechanical key out of the
SmartKey (Y page 73).
XInsert the mechanical key into the lock of
the driver's door as far as it will go.
XTurn the mechanical key clockwise as far
as it will go to position 1.
XTurn the mechanical key back and remove
it.
XMake sure that the doors and the trunk lid
are locked.
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Locking the trunk separately
You can lock the trunk separately. If you then
unlock the vehicle centrally, the trunk
remains locked and cannot be opened.
XClose the trunk lid.XTake the mechanical key out of the
SmartKey (Y page 73).
XInsert the mechanical key into the trunk lid
lock as far as the stop.
XTurn the mechanical key clockwise from
position 1 to position 2.
XRemove the mechanical key.
Unlocking the trunk (mechanical key)
! The trunk lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the trunk lid.
If the trunk can no longer be unlocked with
the SmartKey or KEYLESS-GO:
XTake the mechanical key out of the
SmartKey (Y page 73).
XInsert the mechanical key into the trunk lid
lock as far as the stop.
XTurn the mechanical key counter-clockwise
as far as it will go to position 2.
The trunk is unlocked.
XTurn the mechanical key back to basic
position 1 and remove it.
Emergency trunk release
You can open the trunk lid from inside the
vehicle with the emergency release button.
The trunk lid can be unlocked and opened
with the trunk lid emergency release when
the vehicle is stationary or while driving.
Trunk lid emergency release light:
RThe button flashes for 30 minutes after the
trunk lid is opened.
RThe button flashes for 60 minutes after the
trunk lid is closed.
The trunk lid emergency release does not
open the trunk lid if the battery is
disconnected or discharged.
82TrunkOpening and closing
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=Parking lamp/standing lamp: W 5 W?Turn signal lamp: 3457A
Tail lamp with/without LED
:Fog lamp/tail lamp (driver's side), tail
lamp (passenger side): P 21 W
;Side marker lamp: W 5 W=Turn signal lamp10: PY 21 W?Brake lamp/tail lamp: P 21 WABrake lamp/tail lamp: P 21 WBBackup lamp: P 21 W
Changing the front bulbs
Low-beam headlamp (halogen
headlamp)
XSwitch off the lights.XOpen the hood.XTurn housing cover : counter-clockwise
and pull it out.
XPull connector ; from bulb ?.XDetach retaining spring = downwards.XPull out bulb ?.XInsert the new bulb.XAttach retaining spring =.XAttach connector ; to bulb ?.XPlace housing cover : and turn it
clockwise until it engages.
High-beam headlamps
XSwitch off the lights.XOpen the hood.XTurn housing cover : counter-clockwise
and pull it out.
XPush bulb = on connector ; down until
it is released.
XPull connector ; from bulb =.XAttach connector ; to new bulb =.XAlign new bulb = at the bottom and push
connector ; upwards until it engages.
XAlign housing cover : and turn it
clockwise until it engages.10Vehicles with LED turn signal lamps: the bulb cannot be changed.Changing bulbs113Lights and windshield wipersBA 204 USA, CA Edition A 2011; 1; 5, en-UShereepeVersion: 3.0.3.62010-05-20T09:17:30+02:00 - Seite 113Z

Standing lamps/parking lampsXSwitch off the lights.XOpen the hood.XTurn housing cover : counter-clockwise
and pull it out.
XPull out bulb holder ;.XTake the bulb out of bulb holder ;.XInsert the new bulb into bulb holder ;.XInsert bulb holder ;.XAlign housing cover : and turn it
clockwise until it engages.
Turn signals
XSwitch off the lights.XOpen the hood.XTurn bulb holder : counter-clockwise and
pull it out.
XTurn the bulb counter-clockwise, applying
slight pressure, and remove it from bulb
holder :.
XInsert the new bulb into bulb holder : and
turn it clockwise while applying slight
pressure.
XPlace bulb holder : in the headlamp so
that retainer = is upright and mark ; is
at the top.
XInsert bulb holder : into the lamp and turn
it clockwise.
Changing the rear bulbs
Opening/closing the side trim
You must open the side trim panel in the trunk
before you can change the bulbs in the tail
lamps.
Left-hand side trim panel
Right-hand side trim panel
114Changing bulbsLights and windshield wipers
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XTo open: turn release knob : 90° in the
direction of the arrow and remove side trim
panel ;.
XTo close: insert side trim panel ; and turn
release knob : 90° in the opposite
direction to the arrow.
Tail lamp
XSwitch off the lights.XOpen the trunk.XOpen the side trim panel (Y page 114).XSimultaneously press retaining lugs : in
the direction of the arrow and slightly pull
out the bulb holder with the bulbs.
XVehicles with LED turn signals:
disconnect the cables of the LED turn
signal from the bulb holder connectors.
XPull the bulb holder out with the bulbs.
Bulb holder without LED turn signal lamp
:Rear fog lamp/side marker lamp ;Side marker lamp =Turn signals ?Parking lamp/standing lamp/brake
lamp/tail lamp
ABrake lamp/tail lamp BBackup lamp XRear fog lamp/turn signal lamp/
parking lamp/standing lamp/brake
lamp/tail lamp/backup lamp: press the
respective bulb back and turn it counter-
clockwise to remove it from the bulb
holder.
XSide marker lamp: remove bulb ; from
the bulb holder.
XRear fog lamp/turn signal/parking
lamp/standing lamp/brake lamp/tail
lamp/backup lamp: insert the new bulb
into the bulb holder and turn it clockwise.
XSide marker lamp: insert the new bulb
into the bulb holder and press it in.
XInsert the bulb holder again and lock it in.XClose the side trim panel (Y page 114).
Windshield wipers
Important safety notes
GWarning!
Wiper blades are components that are subject
to wear and tear. Replace the wiper blades
twice a year, preferably in the spring and fall.
Otherwise the windshield will not be wiped
properly. As a result, you may not be able to
observe surrounding traffic conditions and
could cause an accident.
! 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
windshield wipers.
Windshield wipers115Lights and windshield wipersBA 204 USA, CA Edition A 2011; 1; 5, en-UShereepeVersion: 3.0.3.62010-05-20T09:17:30+02:00 - Seite 115Z

ventilate automatically if the starter battery
is weak.XTo switch on: press the ¿ button.
The indicator lamp in the ¿ button lights
up.XTo switch off: press the ¿ button.
The indicator lamp in the ¿ button goes
out. The cooling with air dehumidification
function has a delayed switch-off feature.
Problems with the "cooling with air
dehumidification" function
If the indicator lamp in the ¿ button does
not go out when switched off, the cooling with
air dehumidification function is switched off
due to a malfunction. You can no longer
activate the cooling with air dehumidification
function.
XConsult a qualified specialist workshop.
Setting climate control to automatic
GWarning
If you switch off the cooling function, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog up
more quickly. Window fogging may impair
visibility and endanger you and others.
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the
temperature of the dispensed air, the airflow
and the air distribution.
Automatic mode will achieve optimal
operation if cooling with air dehumidification
is also activated. If desired, cooling with air
dehumidification can be deactivated.
XTurn the SmartKey to position 2 in the
ignition lock.XSet the desired temperature.XTo activate: press the à button.
The indicator lamp in the à button lights
up. Automatic air distribution and airflow
are activated.XTo deactivate: press the _ button.
or
XPress the K or I button.
The indicator lamp in the à button goes
out. Automatic air distribution and airflow
are deactivated.
Setting the temperature
Different temperatures can be set for the
driver's and front-passenger sides.
XTurn the SmartKey to position 2 in the
ignition lock.XTo increase/reduce: turn controls : and
D clockwise or counter-clockwise
( Y page 121). Only change the temperature
setting in small increments. Start at
72 ‡ (22 †).
Setting the air distribution
Dual-zone automatic climate control: the air
distribution can be set individually for the
driver's and front-passenger sides.
¯directs the airflow through the
defroster ventsPdirects the airflow through the center
and side air ventsOdirects the airflow through the footwell
air ventsSdirects the airflow through the center
and side air vents, as well as the
footwell air vents 1515
USA only.Operating the control systems123Climate controlBA 204 USA, CA Edition A 2011; 1; 5, en-UShereepeVersion: 3.0.3.62010-05-20T09:17:30+02:00 - Seite 123Z