2004 MERCEDES-BENZ C320 COUPE heating

93 Controls in detail
Seats
Removing and installing rear seat head
restraints
1Release button
Removing rear seat head restraints

Fold back head restraint (
page 92).

Pull head restraint to its highest posi-
tion.

Press release button1 and pull out
head restraint.
Installing rear seat head restraints

Insert head restraint and push it down
until it engages.

Press release button1 and adjust
head restraint to desired position.
Heated seats*
Both switches for the front seats are locat-
ed in the center console.
1Normal heating
2Rapid heating
Make sure the ignition is switched on.
All the lights in the instrument cluster
come on.
Warning!
G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint so that the head re-
straint supports the back of the head at eye
level. This will reduce the potential for injury
to the head and neck in the event of an ac-
cident or similar situation.
Do not drive the vehicle without the seat
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent.
Do not interchange head restraints from
front and rear seat.

94 Controls in detailSeatsSwitching on seat heating
Press upper switch position1.
A red indicator lamp on the switch
comes on.
Switching off seat heating

Press upper switch position1 again.Switching on rapid seat heating

Press lower switch position2.
Both red indicator lamps on the switch
come on.Switching off rapid seat heating

Press lower switch position2 again.
iThe seat heater will be automatically
switched off after approximately
30 minutes.
iThe system switches over to normal
heating mode after approximately five
minutes. Only one indicator lamp re-
mains lit.
!If one or both of the indicator lamps on
the seat heater switch are flashing,
there is insufficient voltage available
since too many electrical consumers
are turned on. The seat heater switches
off automatically.
The seat heater will switch back on
again automatically as soon as suffi-
cient voltage is available.

157 Controls in detail
Climate control
Ventilated storage compartment
The front center console storage compart-
ment has its own air vent that allows for
cooling ventilation when the climate con-
trol system is activated.
1LeverOpening the air vent

Raise lever1.
Closing the air vent

Lower lever1.
iYou should keep this air vent closed
when outside temperatures are low.
iThe compartment can get very warm
due to its confined space. When storing
heat sensitive objects in the compart-
ment, close the air vent while heating
the passenger compartment.!Do not obstruct the air vent in the stor-
age compartment.

203 Controls in detail
Useful features
Parcel net in front passenger footwell
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.
Ashtrays
Center console ashtray
Opening ashtray
Briefly touch cover plate1.
The ashtray opens automatically.
iVehicles with climate control:
The storage compartment can be heat-
ed or cooled.
The compartment can get very warm
due to its confined space. When storing
heat sensitive objects in the compart-
ment, close the air vent (
page 157)
while heating the passenger compart-
ment.
!Vehicles with climate control:
Do not obstruct the air vent in the
storage compartment.
Warning!
G
Do not place heavy or fragile objects, or ob-
jects having sharp edges, in the parcel net.
In an accident, during hard braking or sud-
den maneuvers, they could be thrown
around inside the vehicle, and cause injury
to vehicle occupants.

205 Controls in detail
Useful features
Telephone*
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.
Warning!
G
Never touch the heating element or sides of
the cigarette lighter; they are extremely hot.
Hold the knob only.
When leaving the vehicle, always remove the
SmartKey from the starter switch and lock
your vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment may cause an accident
and/or serious personal injury.iThe cigarette lighter socket can be
used to accommodate electrical acces-
sories up to a maximum 85 W.
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/or serious
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.
1Observe all legal requirements.


224 OperationDriving instructionsBrakes
To help prevent brake disk corrosion after
driving on wet road surfaces (particularly
salted roads), it is advisable to brake the
vehicle with considerable force prior to
parking. The heat generated serves to dry
the brakes.
If your brake system is normally only sub-
jected to moderate loads, you should occa-
sionally test the effectiveness of the
brakes by applying above-normal braking
pressure at higher speeds. This will also
enhance the grip of the brake pads. If the parking brake is released and the
brake warning lamp in the instrument clus-
ter stays on, the brake fluid level in the res-
ervoir is too low.
Brake pad wear or a leak in the system may
be the reason for low brake fluid in the res-
ervoir.
Have the brake system inspected by quali-
fied technicians immediately. Contact your
authorized Mercedes-Benz Center.
All checks and service work on the brake
system should be carried out by qualified
technicians only. Contact your authorized
Mercedes-Benz Center.
Install only brake pads and brake fluid rec-
ommended by Mercedes-Benz.Warning!
G
After driving in heavy rain for some time
without applying the brakes or through wa-
ter deep enough to wet brake components,
the first braking action may be somewhat
reduced and increased pedal pressure may
be necessary to obtain expected braking ef-
fect. Maintain a safe distance from vehicles
in front.
Resting your foot on the brake pedal will
cause excessive and premature wear of the
brake pads.
It can also result in the brakes overheating,
thereby significantly reducing their effec-
tiveness. It may not be possible to stop the
vehicle in sufficient time to avoid an acci-
dent.
!Be very careful not to endanger other
road users when you apply the brakes.
Refer to the description of the Brake
Assist System (BAS), (
page 74).

225 Operation
Driving instructions
After hard braking, it is advisable to drive
on for some time, rather than immediately
parking, so that the air stream will cool
down the brakes faster.
Driving off
Apply the brakes to test them briefly after
driving off. Perform this procedure only
when the road is clear of other traffic.
Warm up the engine smoothly. Do not
place full load on the engine until the oper-
ating temperature has been reached.
When starting off on a slippery surface, do
not allow a wheel to spin for an extended
period with the ESP switched off. Doing so
may cause serious damage to the drive
train which is not covered by the
Mercedes-Benz Limited Warranty.
Parking
Warning!
G
If other than recommended brake pads are
installed, or other than recommended brake
fluid is used, the braking properties of the
vehicle can be degraded to an extent that
safe braking is substantially impaired. This
could result in an accident.!When driving down long and steep
grades, relieve the load on the brakes
by shifting into a lower gear to use the
engine’s braking power. This helps pre-
vent overheating of the brakes and re-
duces brake pad wear
!Simultaneously depressing the acceler-
ator pedal and applying the brake re-
duces engine performance and causes
premature brake and drivetrain wear.
!Set the parking brake whenever park-
ing or leaving the vehicle. In addition,
move gear selector lever to positionP
(manual transmission: first or reverse
gear).
When parking on hills, always turn front
wheel towards the curb.Warning!
G
Do not park this vehicle in areas where com-
bustible materials such as grass, hay or
leaves can come into contact with the hot
exhaust system, as these materials could be
ignited and cause a vehicle fire.


364 IndexPower windows 186
Side windows 186
Synchronizing 188
Practical hints
First aid kit 284
Fuses 317
Lamp in center console 263
Lamps in instrument cluster 258
Messages in the display 264
Spare wheel 285
Spare wheel bolts 287
Symbol messages 268
Text messages 265
Towing the vehicle 313
Vehicle jack 286
Vehicle tool kit 285
Premium unleaded gasoline 333
Problems
While driving 50
Program mode selector switch 344Automatic transmission 144
Programme type ID
see PTY ID
PTY ID 168
Q
Quick search
Phone book* 136
R
Radio
Selecting stations 115
Station search 115
Station selection setting 128
Radio operation 165
Radio see Radio operation
Radio transmitters
Control and operation 230
Range (distance to empty)
Calling up 134
Rapid seat heating
Switching on 94RDS
Programme type ID 168
PTY ID 168
Reading lamp 27
Rear bench seat
Foldable 197
Rear fog lamp 294
Bulb 294
Switching on 101
Rear head restraint tilt 92
Rear lamp bulbs
Replacing 298
Rear lamps see Tail lamps
Rear passenger compartment
Adjustable air outlets 158
Rear seat head restraints 91, 93
Adjusting 91
Folding back 92
Installing 93
Placing upright 92