2004 MERCEDES-BENZ C320S wheel

90 Controls in detailLocking and unlockingSeparately unlocking the trunk
Pull the mechanical key out of the
SmartKey (
page 305).

Insert the mechanical key in the trunk
lid lock.

Turn the mechanical key
counterclockwise to neutral
position1 (
page 89).
You can now open the trunk (
page 86).
A minimum height clearance of 5.71 ft
(1.74 m) is required to open the trunk lid.
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 ap-
proximately 9mph (15km/h) or more.
You can open a locked door from the in-
side. Open door only when conditions are
safe to do so.For more information on towing the vehi-
cle, see see “Towing the vehicle”
(
page 328).
You can deactivate the automatic locking
mode using the control system, see “Set-
ting automatic locking” (
page 133).
iYou can only cancel the separate trunk
locking mode by means of the mechan-
ical key.
Warning!
G
Only drive with the trunk closed. Among
other dangers, such as your view being
blocked, exhaust fumes may enter the
vehicle interior.
iThe doors unlock automatically after an
accident if the force of the impact
exceeds a preset threshold.
The vehicle automatically locks when
the ignition is switched on and the
wheels are turning at vehicle speeds of
approximately 9 mph (15 km/h) or
more. You could therefore lock yourself
out when the vehicle

is pushed or towed


is on a test stand

92 Controls in detailSeats
SeatsFor information on seat adjustment, see
“Seats” (
page 32).
Easy-entry/exit feature*
With the easy-entry/exit feature activated,
the steering wheel tilts upwards and the
driver’s seat moves to the rear.
This allows easier entry into and exit from
the vehicle when the driver’s door is
opened. However, the engine must be
turned off.
When the SmartKey is inserted in the
starter switch and the driver’s door is
closed, the steering wheel and the driver’s
seat return to their last set positions.You can activate the following functions:


Steering column:
Only the steering column is adjusted.


Steering column and seat:
The steering column and the seat are
adjusted.
The easy-entry/exit feature can be
switched on or off in the convenience
submenu of the control system
(
page 133).
Warning!
G
You must make sure no one can become
trapped or injured by the moving steering
wheel and the driver’s seat when the
easy-entry/exit feature* is activated, the
driver’s door is being opened and the engine
is turned off or the SmartKey is removed
from the starter switch.
Do not leave children unattended in the
vehicle, or with access to an unlocked
vehicle. Children could open the driver’s
door and unintentionally activate the
easy-entry/exit feature*, which could result
in an accident and/or serious personal
injury.
iTo cancel seat/steering wheel
movement, do one of the following:

Press the seat adjustment switch*
(page 28)


Move the steering column stalk*
(page 37)


Press the memory button*
(page 28)

99 Controls in detail
Memory function*
Memory function*
The memory button and stored position
switch are located on the door.
You can store up to three different settings
per SmartKey.
The following settings are saved for each
stored position:

Driver’s seat and backrest position


Steering wheel position


Driver’s side exterior rear view mirror
position


Passenger side exterior rear view mir-
ror position


Front passenger seat position
These key-dependent memory settings
can be deactivated if desired
(
page 135).
!Prior to operating the vehicle, the driv-
er should check and adjust the seat
height, seat position fore and aft, and
seat backrest angle if necessary, to
ensure adequate control, reach and
comfort. The head restraint should also
be adjusted for proper height. See also
the section on airbags (
page 55) for
proper seat positioning.
In addition, adjust the steering wheel to
ensure adequate control, reach, opera-
tion and comfort. Both the interior and
exterior rear view mirrors should be
adjusted for adequate rear vision.
Fasten seat belts. Infants and small
children should be seated in a properly
secured restraint system that complies
with U.S. Federal Motor Vehicle Safety
Standards 213 and 225 and Canadian
Motor Vehicle Safety Standards 213
and 210.2.
Warning!
G
Do not activate the memory function while
driving. Activating the memory function
while driving could cause the driver to lose
control of the vehicle.

100 Controls in detailMemory function*The memory button and stored position
button are located on the door.
1Memory button
2Stored position button
Make sure the ignition is switched on
or the relevant door is open and the
SmartKey is inserted in the starter
switch.
Storing positions into memory
Adjust the seats, steering wheel and
rear view mirrors to the desired posi-
tion (
page 32).

Turn button2 to selected memory
position.

Press memory button1.

Release memory button and push
button2 within three seconds.
All the settings are stored at the
selected position.
Recalling positions from memory
Turn button2 to selected memory
position.

Press and hold button2 until the seat,
steering wheel and rear view mirrors
have fully moved to the stored posi-
tions.iReleasing the button immediately
stops movement to the stored posi-
tions.Warning!
G
Do not operate the power seats using the
memory button if the seat backrest is in an
excessively reclined position. Doing so
could cause damage to front or rear seats.
First move backrest to an upright position.

101 Controls in detail
Memory function*
Storing exterior rear view mirror parking position
For easier parking, you can adjust the
passenger-side exterior rear view mirror so
that you can see the right rear wheel as
soon as you engage reverse gearR.
For information on activating the parking
position feature, see “Setting parking posi-
tion* for exterior rear view mirror”
(page 136).1Memory button
2Adjustment button
3Passenger-side exterior rear view
mirror button

Stop the vehicle.

Switch on ignition (if not already on).

Press button3.
The passenger-side exterior rear view
mirror is selected.

Adjust the exterior rear view mirror
with button2 so that you see the rear
wheel and the road curb.

Press memory button1.

Within three seconds, press bottom of
adjustment button2.
The parking position is stored if the
mirror does not move.
iYou can store a parking position for the
passenger-side exterior rear view
mirror for each SmartKey.
iIf the mirror does move, repeat the
above steps. After the setting is stored,
you can move the mirror again.

102 Controls in detailLighting
LightingFor notes on how to switch on the head-
lamps and use the turn signals, see the
“Getting started” section (
page 46).
Exterior lamp switch
The exterior lamp switch is located on the
dashboard to the left of the steering wheel.MOff
UAutomatic headlamp mode
CParking lamps (also side marker
lamps, tail lamps, license plate
lamps, instrument panel lamps)
Canada only:
When engine is running, the low
beam is also switched on.
BLow beam plus parking lamps or
high beam headlamps (combination
switch pushed forward).
ˆStanding lamps, right (turn left one
stop)
‚Standing lamps, left (turn left two
stops)
iIf you drive in countries where vehicles
drive on the other side of the road than
the country where the vehicle is regis-
tered, you must have the headlamps
modified for symmetrical low beams.
Relevant information can be obtained
at your authorized Mercedes-Benz
Center.

110 Controls in detailInstrument clusterCoolant temperature display
Turn the SmartKey in the starter switch to
position1 or2.

Call up the trip odometer and main
odometer by pressing buttonè
orÿ on the multifunction steering
wheel (
page 114).

Press buttonj ork until the
coolant temperature display appears.During severe operating conditions, e.g.
stop-and-go traffic, the coolant tempera-
ture may rise close to 248°F (120°C).
The engine should not be operated with
the coolant temperature above 248°F
(120°C). Doing so may cause serious en-
gine damage which is not covered by the
Mercedes-Benz Limited Warranty.
Warning!
G


Driving when your engine is badly
overheated can cause some fluids which
may have leaked into the engine
compartment to catch fire. You could be
seriously burned.


Steam from an overheated engine can
cause serious burns and can occur just
by opening the hood. Stay away from
the engine if you see or hear steam com-
ing from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until the
engine has cooled down.
iExcessive coolant temperature triggers
a warning in the multifunction display.

111 Controls in detail
Instrument cluster
Trip odometer
Make sure you are viewing the trip
odometer and main odometer in the
multifunction display (
page 113).

If it is not displayed, press buttonè
orÿ on the multifunction steering
wheel until the trip odometer appears
(page 114).

Press and hold the reset button on the
instrument cluster (
page 22) until
the trip odometer is reset.
Tachometer
The red marking on the tachometer
denotes excessive engine speed.
To help protect the engine, the fuel supply
is interrupted if the engine is operated
within the red marking.
Outside temperature indicator
The outside temperature is indicated in the
multifunction display (
page 23). For
information on how to select the unit of the
indicated temperature, i.e. degrees
Celsius (°C) or degrees Fahrenheit (°F),
see “Selecting temperature display mode”
(
page 127).
!Avoid driving at excessive engine
speeds, as it may result in serious
engine damage that is not covered by
the Mercedes-Benz Limited Warranty.
Warning!
G
The outside temperature indicator is not de-
signed to serve as an ice-warning device and
is therefore unsuitable for that purpose.
Indicated temperatures just above the freez-
ing point do not guarantee that the road sur-
face is free of ice. The road may still be icy,
especially in wooded areas or on bridges.