2006 MERCEDES-BENZ C230 152

107 Controls in detail
Locking and unlocking

Pull the mechanical key out of the
SmartKey (
page 389).

Insert the mechanical key in the trunk
lid lock.

Turn the mechanical key clockwise to
position2 and remove the mechani-
cal key in that position to lock the
trunk.
The trunk remains locked even when the
vehicle is centrally unlocked.

Insert the mechanical key in the trunk
lid lock.

Turn the mechanical key counterclock-
wise to neutral position1 and remove
the mechanical key in that position to
unlock the trunk.
You can now open the trunk
(page 103).
Automatic central locking
The doors and the trunk automatically lock
when the ignition is switched on and the
wheels are turning at vehicle speeds of
approximately 9 mph (15 km/h) or more.
You can open a locked door from the
inside. Open door only when conditions
are safe to do so.
You can deactivate the automatic locking
mode using the control system, see “Set
automatic locking” (
page 152).
Locking and unlocking from the inside
You can lock or unlock the doors and the
trunk from inside using the central locking
or unlocking switch. This can be useful, for
example, if you want to lock the vehicle
before starting to drive.
You cannot lock or unlock the fuel filler flap
with the central locking or unlocking
switch.
iYou can only cancel the separate trunk
locking mode by means of the
mechanical key.
iThe doors unlock automatically after an
accident if the force of the impact
exceeds a preset threshold.
To prevent the vehicle door locks from
locking, deactivate the automatic
central locking when the vehicle

is pushed or towed


is on a test stand
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Unsuper-
vised use of vehicle equipment may cause
an accident and/or serious personal injury.

125 Controls in detail
Lighting
Switching on hazard warning flasher
Press hazard warning flasher
switch1.
All turn signals are flashing.
Switching off hazard warning flasher

Press hazard warning flasher switch1
again.
Interior lighting
The controls are located in the overhead
control panel.
1Rear interior lights on/off
2Right front reading lamp on/off
3Rocker switch for automatic control
system
4Left front reading lamp on/offAutomatic control
Activating

Press rocker switch3 to center
position.
Interior lamps are switched on in
darkness, when you

unlock the vehicle


open a door


remove the SmartKey from the
starter switch
The interior lamps are switched off after a
preset time, see “Set interior lighting de-
layed shut-off” (
page 152).
iWith the hazard warning flasher
activated and the combination switch
set for either left or right turn, only the
respective turn signals will operate
when the SmartKey is in the starter
switch position1 or 2.iIf the hazard warning flasher has been
activated automatically, press hazard
warning flasher switch1 once to
switch it off.
iLeaving an interior light switch in the
ON position for extended periods of
time with the engine turned off could
result in a discharged battery.
iIf the door remains open, the interior
lamps switch off automatically after
approximately 5 minutes, when the
SmartKey is removed or in starter
switch position0.

149 Controls in detail
Control system
The selection marker is on the year
setting.

Press buttonæ orç to set the
year.Lighting submenu
Access the
Lighting
submenu via the
Settings
menu. Use the
Lighting
submenu to change the lamp and lighting
settings on your vehicle.
The following functions are available:Set daytime running lamp mode
(USA only)

Move the selection marker with
buttonæ orç to the
Lighting

submenu.

Press buttonj ork repeatedly
until the message
Hdlamp mode
appears
in the multifunction display.
Function
Page
Set daytime running lamp mode
(USA only)
149
Set locator lighting
150
Set night security illumination
151
Set interior lighting delayed
shut-off
152
iThis function is not available in
countries where the daytime running
lamp mode is mandatory and therefore
in a constant mode.


152 Controls in detailControl system
Press buttonæ orç to switch
the delayed shut-off feature
off
or
on.

Turn the exterior lamp switch to
positionU before turning off the
engine (
page 118).
The headlamps delayed shut-off
feature is activated.
You can temporarily deactivate the
delayed shut-off feature:

Before exiting the vehicle, turn the
SmartKey in the starter switch to
position0.

Then turn it to position2 and back to
position0.
The delayed shut-off feature is
deactivated. It will reactivate as soon
as you reinsert the SmartKey in the
starter switch.Set interior lighting delayed shut-off
Use this function to set whether or not the
interior lighting to remains lit during dark-
ness for appriximately 10 seconds after
you have removed the SmartKey from the
starter switch.

Move the selection marker with
buttonæ orç to the
Lighting
submenu.

Press buttonj ork repeatedly
until the message
Int. light delay
off
appears in the multifunction
display.
The selection marker is on the current
setting.

Press buttonæ orç to switch
the delayed shut-off feature
off
or
on.
Vehicle submenu
Access the
Vehicle
submenu via the
Settings
menu. Use the
Vehicle
submenu
to make general vehicle settings.
The following function is available:
Set automatic locking
Use this function to activate or deactivate
the automatic central locking. With the
automatic central locking system
activated, the vehicle is centrally locked at
vehicle speeds of approximately 9 mph
(15 km/h).

Move the selection marker with
buttonæ orç to the
Vehicle

submenu.
Function
Page
Set automatic locking
152


417 Practical hints
Towing the vehicle
Towing the vehicle
Mercedes-Benz recommends that the
vehicle be transported with all wheels off
the ground using flatbed or appropriate
wheel lift/dolly equipment. This method is
preferable to other types of towing.When circumstances do not permit the
recommended towing methods, the
vehicle may be towed with all wheels on
the ground or front wheels raised (except
vehicles with 4MATIC) only so far as
necessary to have the vehicle moved to a
safe location where the recommended
towing methods can be employed.
!Use flatbed or wheel lift/dolly equip-
ment with the SmartKey in the starter
switch turned to position0.
Do not tow with sling-type equipment.
Towing with sling-type equipment over
bumpy roads will damage radiator and
supports.
To prevent damage during transport,
do not tie down vehicle by its chassis or
suspension parts.
Switch off the tow-away alarm*
(page 95) and deactivate the auto-
matic central locking (
page 152).
!Vehicles with automatic transmission
and/or 4MATIC:
Do not tow-start the vehicle.!Vehicles with 4MATIC:
Do not tow with one axle raised. Doing
so could damage the transfer case,
which is not covered by the
Mercedes-Benz Limited Warranty.
All wheels must be on or off the ground.
Observe instructions for towing the
vehicle with all wheels on the ground.
!If the vehicle is towed with the front
axle raised (not permissible for vehicles
with 4MATIC), the engine must be shut
off (SmartKey in starter switch
position0 or1). Otherwise the ESP
®
will immediately be engaged and will
apply the rear wheel brakes.
When towing the vehicle with all wheels
on the ground, the gear selector lever
must be in positionN (manual trans-
mission: gears disengaged) and the
SmartKey must be in starter switch
position2.
When towing the vehicle with all wheels
on the ground or the front axle raised,
the vehicle may be towed only for
distances up to 30 miles (50 km) and
at a speed not to exceed 30 mph
(50 km/h).

419 Practical hints
Towing the vehicle
Warning!
G
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the ve-
hicle. Adapt your driving accordingly.
!When towing the vehicle with all wheels
on the ground, please note the
following:
With the automatic central locking
activated and the SmartKey in starter
switch position2, the vehicle doors
lock if the left front wheel as well as the
right rear wheel are turning at vehicle
speeds of approx. 9 mph (15 km/h) or
more.
Switch off the tow-away alarm*
(page 95).
To prevent the vehicle doors from
locking, deactivate the automatic
central locking (
page 152).
Towing of the vehicle should only be
done using the properly installed
towing eye bolt. Never attach tow
cable, tow rope or tow rod to vehicle
chassis, frame or suspension parts.
iIf the battery is disconnected or
discharged

the SmartKey will not turn in the
starter switch. For more informa-
tion, see “Battery” (
page 412)
and “Jump starting” (page 415).


the gear selector lever will remain
locked in positionP. For informa-
tion on manually unlocking the
transmission gear selector lever
see (
page 392).

430 Technical dataEngineModel
C 230 (203.052)
1
C 230 Sport (203.052)
1
1The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Center for the corresponding data of all special bodies and special equipment.
C 280 (203.054)
1
C 280 4MATIC (203.092)
1
Engine
272
272
Mode of operation
4-stroke engine, gasoline injection
4-stroke engine, gasoline injection
No. of cylinders
6
6
Bore
3.46 in (88.00 mm)
3.46 in (88.00 mm)
Stroke
2.69 in (68.40 mm)
3.23 in (82.10 mm)
Total piston displacement
152.3 cu in (2 496 cm
3)
182.8 cu in (2 996 cm
3)
Compression ratio
11.2:1
11.1:1
Output acc.
to SAE J 1349
201 hp/6 200 rpm
2
(150 kW/6 200 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
228 hp/6 000 rpm
2
(170 kW/6 000 rpm)
Maximum torque acc.
to SAE J 1349
181 lb-ft/2 700 – 5 000 rpm
(245 Nm/2 700 – 5 000 rpm)
221lb-ft/2700–5000rpm
(300 Nm/2 700 – 5 000 rpm)
Maximum engine speed
6500 rpm
6500 rpm
Firing order
1-4-3-6-2-5
1-4-3-6-2-5
Poly-V-belt
2404 mm
2404 mm

456 Index
Operating and display elements 200
Operating audio system 202
Operating safety 199
Radio operation 207
Telephone* operation 225
Auto-dimming mirror* 171
Automatic central locking
Activating/deactivating
(Control system) 152
Automatic climate control*
(Canada only) 186
Control panel 187
Defrosting, front 191
Rear window defroster 175
Automatic headlamp mode 119
Automatic locking when driving 107
Automatic shift program
Program mode selector switch
(Automatic transmission*) 167
Automatic time change (Standard time,
Daylight Saving time) 147Automatic transmission* 162
Accelerator position 165
Automatic shift program 167
Emergency operation
(Limp Home Mode) 169
Fluid level (ATF) 300
Gear ranges 166
Gear selector lever 162
Gear shifting malfunctions 169
Kickdown 165
Manual shifting 168
One-touch gearshifting 168
Program mode selector switch 167
Starting engine 49
B
Backrest
Driver’s multicontour seat*
(Canada only) 113
Rear seat, folding 254
Seat, manual 36
Seat, power* 38Backup lamps
Messages in display 377
Replacing bulbs 399
Bar 331
BAS 88, 449
Batteries, SmartKey
Changing 396
Checking battery condition 101
Battery, Vehicle 302, 412
Charging 414
Disconnecting and connecting 413
Jump starting 415
Removing and installing 413
Bead 331
Bi-Xenon* headlamps see headlamps
Block heater (Canada only) 337
Bolts, Spare wheel 388
Brake Assist System see BAS
Brake fluid 442
Checking 295
Message in display 370