2006 MERCEDES-BENZ C230 telephone

239 Controls in detail
Audio system
TDMA/CDMA network phones
Placing a “911” emergency call using
audio head unit with the phone locked
Press hbutton to switch to
telephone operation. CODE?
appears in the audio display.

Enter 911 using the number keypad on
the audio head unit.

Press
OK soft key or sbutton for
dialing to begin.
DIALING
appears in the audio display
while the telephone establishes the
connection.

Wait until the emergency call center
answers, then describe the emergency. Placing a “911” emergency call using
audio head unit with the phone
unlocked

Press hbutton to switch to
telephone operation.

Enter 911 using the number keypad on
the audio head unit.

Press sbutton for dialing to begin. DIALING
appears in the audio display
while the telephone establishes the
connection.

Wait until the emergency call center
answers, then describe the emergency.

258 Controls in detailUseful featuresArmrest storage compartments
1Handle
2Button, passenger side
3Button, driver’s side
Opening storage compartment
Pull handle1 and lift armrest.
Closing storage compartment

Press armrest down until it engages
into place.Opening telephone compartment

Press button3 on driver’s side or
button2 on passenger side and lift
armrest.
Closing telephone compartment

Press armrest down until it engages
into place.
Armrest in the rear passenger
compartment

Pull the top of the armrest out and fold
it down.Parcel net in front passenger footwell
(all models, except C 280 4MATIC and
C 350 4MATIC)
A small convenience parcel net is located
in the front passenger footwell. It is for
small and light items, such as road maps,
mail, etc.
Warning!
G
The parcel net is intended for storing
light-weight items only.
Heavy objects, objects with sharp edges or
fragile objects may not be transported in the
parcel net. In an accident, during hard brak-
ing, or sudden maneuvers, they could be
thrown around inside the vehicle and cause
injury to vehicle occupants.
The parcel net cannot protect transported
goods in the event of an accident.

264 Controls in detailUseful featuresTelephone*
Radio transmitters, such as a portable tele-
phone or a citizens band unit, should only
be used inside the vehicle if they are con-
nected to an antenna that is installed on
the outside of the vehicle.
The external antenna must be approved by
Mercedes-Benz. Please contact an autho-
rized Mercedes-Benz Center for informa-
tion on the installation of an approved
external antenna. Refer to the radio trans-
mitter operation instructions regarding use
of an external antenna.You can take and place telephone calls
using thes andt buttons on the
steering wheel. To carry out other tele-
phone functions, use the control system
(
page 157).
See separate operating manual for instruc-
tions on how to use the telephone.
Warning!
G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and personal
injury.
Warning!
G
Please do not forget that your primary re-
sponsibility is to drive the vehicle. A driver’s
attention to the road must always be
his/her primary focus when driving. For
your safety and the safety of others, we rec-
ommend that you pull over to a safe location
and stop before placing or taking a tele-
phone call.
If you choose to use the telephone
1 while
driving, please use the hands-free device
and only use the telephone when road,
weather and traffic conditions permit. Some
jurisdictions prohibit the driver from using a
cellular telephone while driving a vehicle.
Only operate the COMAND* (Cockpit Man-
agement and Data System)
1 if road, weather
and traffic conditions permit.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet
(approximately 14 m) every second.
1Observe all legal requirements.

291 Operation
Driving instructions
Control and operation of radio transmitters
COMAND*, radio and telephone*Telephones* and two-way radios
Radio transmitters, such as a portable
telephone or a citizens band unit should
only be used inside the vehicle if they are
connected to an antenna that is installed
on the outside of the vehicle.
Refer to the radio transmitter operation
instructions regarding use of an external
antenna.
Catalytic converter
Your Mercedes-Benz is equipped with
monolithic-type catalytic converters, an
important element in conjunction with the
oxygen sensors to achieve substantial
control of the pollutants in the exhaust
emissions. Keep your vehicle in proper
operating condition by following our
recommended maintenance instructions
as outlined in your Maintenance Booklet.
Warning!
G
Please do not forget that your primary
responsibility is to drive the vehicle safely.
Only operate the COMAND (Cockpit
Management and Data System), radio or
telephone
1 if road, weather and traffic
conditions permit.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet
(approximately 14 m) every second.
1Observe all legal requirements.
Warning!
G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system,
possibly resulting in an accident and
personal injury.
!To prevent damage to the catalytic
converters, only use premium unleaded
gasoline in this vehicle.
Any noticeable irregularities in engine
operation should be repaired promptly.
Otherwise, excessive unburned fuel
may reach the catalytic converter,
causing it to overheat and potentially
start a fire.

382 Practical hintsWhat to do if …Display symbol
Display message
Possible cause/consequence
Possible solution
K
Close slid./pop-up
sunroof
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the sliding portion of the
tilt/sliding sunroof* open.

Close the tilt/sliding sunroof*
(page 244).
J
Close slid./pop-up
sunroof
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the tilting portion of the
tilt/sliding sunroof* open.

Close the tilt/sliding sunroof*
(page 244).
L
Tele Aid malfunction.
Drive to workshop
One or more main functions of the Tele
Aid system* are malfunctioning.

Have the Tele Aid system* checked by
an authorized Mercedes-Benz Center.
t
Function unavailable
This display appears if buttont
ors on the multifunction steering
wheel is pressed and the vehicle is not
equipped with a telephone*.
Ê
Trunk open
You are attempting to drive with the trunk
open.

Close the trunk.
W
Washer fluid
please refill
The fluid level has dropped to
about
1/3of total reservoir capacity.

Add washer fluid (
page 303).

449 Technical terms
ABS
(A
ntilock B
rake S
ystem)
Prevents the wheels from locking up
during braking so that the vehicle can
continue to be steered.
Accessory weight
(
page 331)
Air pressure
(page 331)
Alignment bolt
Metal pin with thread. The centering
pin is an aid used when changing a tire
to align the wheel with the wheel hub.
Aspect ratio
(page 331)
Bar
(page 331)
BAS
(Brake A
ssist S
ystem)
System for potentially reducing braking
distances in emergency braking
situations. The system is activated
when it senses an emergency based on
how fast the brake is applied.Bead
(
page 331)
Bi-Xenon headlamps*
Headlamps which use an electric arc as
the light source and produce a more
intense light than filament headlamps.
Bi-Xenon headlamps produce low
beam and high beam.
CAC
(Customer A
ssistance C
enter)
Mercedes-Benz customer service
center, which can help you with any
questions about your vehicle and
provide assistance in the event of a
breakdown.
CAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control
vehicle functions such as door locking
or windshield wiping depending on
vehicle settings and/or ambient
conditions.Cockpit
All instruments, switches, buttons and
indicator/warning lamps in the
passenger compartment needed for
vehicle operation and monitoring.
Cold tire inflation pressure
(
page 331)
COMAND*
(Cockpit M
anagement and D
ata
System)
Information and operating center for
vehicle sound and communications
systems, including the radio and the
navigation system, as well as other
optional equipment (CD changer*,
telephone*, etc.).

455 Index
A
ABS 25, 87, 449
Indicator lamp 350
Messages in display 360
Accelerator position,
automatic transmission* 165
Accessory weight 331
Accident
In case of 56
Active head restraints
see Head restraints
Additional turn signals 398
Air bags 63
Children 64
Front passenger front air bag off
indicator lamp 27, 80, 356
Front, Driver 67
Front, Passenger 67
Passenger 67
Safety guidelines 66
Side impact (front and rear*) 68
Window curtain 68
Air conditioning refrigerant 442Air conditioning system
Automatic climate control*
(Canada only) 186
Climate control 176
Air conditioning, Cooling
Automatic climate control*
(Canada only) 196
Climate control 183
Air distribution
Automatic climate control*
(Canada only) 190
Climate control 180
Air pressure see Tire inflation pressure
Air recirculation mode
Automatic climate control*
(Canada only) 192
Climate control 182
Air vents, Front
Automatic climate control*
(Canada only) 187
Climate control 177
Air vents, Rear
Automatic climate control*
(Canada only) 198
Climate control 185Air volume
Automatic climate control*
(Canada only) 191
Climate control 180
Alignment bolt (vehicle tool kit) 408, 449
Anticorrosion/antifreeze 446, 447
Antiglare, Rear view mirror 170
Anti-theft systems 93
Anti-theft alarm system* 93
Immobilizer 93
Tow-away alarm* 95
Aquaplaning see Hydroplaning
Armrest 258
Ashtrays 261
Aspect ratio 331
ATF (Automatic transmission fluid) 300
AUDIO menu (Control system) 136
Audio system 199
Audio and telephone, operation 199
Button and soft key operation 202
CD changer* with MP3 218
CD operation 216

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