2006 MERCEDES-BENZ C55AMG reset

70 Safety and Security
Occupant safety

and the vehicle speed exceeds 15 mph
(25 km/h), the seat belt telltale <
starts flashing and a warning chime
sounds with increasing intensity until
both the driver’s and front passenger’s
seat belt are fastened, or for a maxi-
mum of 60 seconds from the time the
vehicle speed exceeded 15 mph
(25 km/h) if either the driver’s or front
passenger’s seat belt remains unfas-
tened.
If the driver’s or front passenger’s seat
belt remains unfastened after 60 sec-
onds, the seat belt telltale< stops
flashing and the warning chime stops
sounding. The seat belt telltale <
then continues to be illuminated for as
long as either the driver’s or front pas-
senger’s seat belt are not fastened.
The seat belt telltale < will only go out
if both the driver and front passenger’s
seat belt (with the front passenger seat oc-
cupied) are fastened, or the vehicle is
standing still and a front door is opened. For more information on the seat belt
telltale<, see “Practical hints”
(
page 355).
Emergency tensioning device (ETD),
seat belt force limiter
The seat belts for the front and rear outer
seats are equipped with emergency
tensioning devices and belt force limiters.
The ETD is designed to activate in the
following cases:

in frontal or rear-end impacts
exceeding a preset severity level.

if the restraint systems are operational
and functioning correctly.
See 1indicator lamp (
page 60).In an impact, emergency tensioning
devices remove slack from the belts in
such a way that the seat belts fit more
snugly against the body. Belt force limiters
reduce the force exerted by the seat belts
on occupants during a crash.
i
The ETDs for the front seats will only
activate if the respective front seat belt
is fastened (latch plate properly
inserted into buckle).
The ETDs for the rear outer seats will
activate with or without the respective
seat belt fastened.
Warning!G
An emergency tensioning device (ETD) that
was activated must be replaced.
When scrapping the emergency tensioning
device, our safety instructions must be
followed. These are available at your
authorized Mercedes-Benz Center.

71 Safety and Security
Occupant safety
Active head restraint
The active head restraints are intended to
offer the driver and front passenger in-
creased protection from head and neck in-
jury. In the event of a rear-end collision,
the active head restraints on the driver’s
and front passenger’s seats are designed
to move forward in the direction of travel,
providing the head with increased support
earlier on in the collision sequence. The ac-
tive head restraints move forward whether
the seat is occupied or not.
For information on resetting the activated
active head restraints, see “Resetting acti-
vated head restraints” (
page 391).You cannot remove the active head re-
straints on the driver’s and passenger’s
seats.
For removal of the active head restraints
we recommend that you contact an autho-
rized Mercedes-Benz Center.
!
Do not place objects heavier than
20 lbs (9 kg) on the front passenger
seat. This could cause the front or side
impact air bag on the front passenger
side and, with the seat belt fastened to
secure the object, the ETD to deploy in
a crash which exceeds the system’s de-
ployment threshold.
Warning!G
Do not attach any objects (e.g. hangers) to
the head restraint posts. Otherwise, the ac-
tive head restraints may not be able to func-
tion properly or offer the intended degree of
protection in the event of an accident.
Warning!G
Only use seat- or head restraint covers
which have been tested and approved by
Mercedes-Benz for your vehicle model.
Using other seat- or head restraint covers
may interfere with or prevent the activation
of the active head restraints. Contact your
authorized Mercedes-Benz Center for avail-
ability.

103 Controls in detail
Locking and unlocking
Valet locking
The lock is located next to the handle
above the rear license plate recess.
1Neutral position
2Locked
Close the trunk (page 101).
Pull the mechanical key out of the
SmartKey (
page 386).
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 99).
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 147).
i
To deny any unauthorized person ac-
cess to the trunk, lock it separately
with the mechanical key. Leave only
the SmartKey less its mechanical key
with the vehicle.
i
You can only cancel the separate trunk
locking mode by means of the
mechanical key.
i
The 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

120 Controls in detail
Lighting
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/offDeactivating automatic control
Press the= symbol on rocker
switch3.
The interior lighting remains switched
off in darkness, even when you

unlock the vehicle

open a door

remove the SmartKey from the
starter switchActivating automatic control
Press rocker switch3 to center
position.
The interior lighting switches on in
darkness, when you

unlock the vehicle

open a door

remove the SmartKey from the
starter switch
The interior lighting switches off after a
preset time (
page 147).
!
Leaving an interior light switch in the
ON position for extended periods of
time with the engine turned off could
result in a discharged battery.
i
If the door remains open, the interior
lamps switch off automatically after
approximately 5 minutes, when the
SmartKey is removed or in starter
switch position0.
An interior lamp switched on manually
does not go out automatically.

122 Controls in detail
Instrument cluster
For a full view illustration of the instrument
cluster, see “At a glance” (
page 24).
1Reset button
The instrument cluster is activated when
you

open a door

switch on the ignition (page 33)

press reset button1

switch on the exterior lighting
You can change the instrument cluster
settings in the Instrument cluster submenu
of the control system (
page 138).
Instrument cluster illumination
Use reset button1 to adjust the
illumination brightness for the instrument
cluster.
To brighten illumination
Turn reset button1 clockwise.
The instrument cluster illumination will
brighten.
To dim illumination
Turn reset button1 counterclock-
wise.
The instrument cluster illumination will
dim.
Warning!G
No messages will be displayed if either the
instrument cluster or the multifunction dis-
play is inoperative.
As a result, you will not be able to see infor-
mation about your driving conditions, such
as speed or outside temperature, warning/
indicator lamps, malfunction/warning mes-
sages or the failure of any systems. Driving
characteristics may be impaired.
If you must continue to drive, please do so
with added caution. Visit an authorized
Mercedes-Benz Center as soon as possible.
i
The instrument cluster illumination is
dimmed or brightened automatically to
suit ambient light conditions.
The instrument cluster illumination will
also be adjusted automatically when
you switch on the vehicle’s exterior
lamps.

123 Controls in detail
Instrument cluster
Coolant temperature gauge
The coolant temperature gauge is on the
left side in the instrument cluster
(
page 24).
Trip odometer
Make sure you are viewing the trip
odometer and main odometer in the
multifunction display (
page 125).
If it is not displayed, press buttonè
orÿ on the multifunction steering
wheel (
page 126) until the trip
odometer appears in the multifunction
display.
Press and hold the reset button in the
instrument cluster (
page 122) until
the trip odometer is reset.
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.
!
Excessive coolant temperature triggers
a warning in the multifunction display
(
page 368).
The engine should not be operated with
the coolant temperature above 248°F
(120°C). Doing so may cause serious
engine damage which is not covered by
the Mercedes-Benz Limited Warranty.
i
During severe operating conditions,
e.g. stop-and-go traffic, the coolant
temperature may rise close to 248°F
(120°C).

129 Controls in detail
Control system
Menus, submenus and functions
Menu1Menu2Menu3Menu4Menu5Menu6Menu7
Standard
displayAUDIONAV*Vehicle status
message memorySettingsTrip computerTelephone*
(page 130)(page 131)(page 134)(page 134)(page 135)(page 150)(page 152)
Commands/submenus
Run Flat
Indicator*
(Canada only)Select radio
stationShow route guid-
ance instructions,
current direction
traveledCall up vehicle mal-
function, warning and
system status messag-
es stored in memory
1
1The vehicle status message memory menu is only displayed if there is a message stored.
Reset to
factory
settingsFuel consumption
statistics after
startLoad phone
book
Digital speed-
ometer or out-
side temperatureSelect satellite
radio station*
(USA only)Instrument
cluster sub-
menuFuel consumption
statistics since
the last resetSearch for
name in
phone book
Call up main-
tenance service
displayOperate
CD player* Time/Date
submenuDistance to emp-
ty
Check engine oil
levelLighting
submenu
Vehicle
submenu
Convenience
submenu

132 Controls in detail
Control system
Select satellite radio station*
(USA only)
The satellite radio is treated as a radio
application.
Select satellite radio with the
corresponding soft key (SAT) in the
radio menu.
1SAT mode and preset number
2Channel name or number
Press buttonk orj repeatedly
until the desired channel is found.Operate the CD player*
Selecting CD track
Turn on the radio and select CD or
CD changer* (
page 219).
Vehicles with COMAND*:
Refer to separate operating
instructions.
Press buttonè orÿ repeatedly
until the settings for the CD currently
being played appear in the
multifunction display.
1Current CD (for CD changer*)
2Current track
Press buttonk orj repeatedly
until the desired track is selected.
i
For more information on satellite radio
operation, see “Introduction to satellite
radio* (USA only)” (
page 209).
Vehicles with COMAND*:
Refer to separate operating
instructions.
i
The COMAND* system and the CD
changer* can play audio CDs as well as
CDs with MP3 files.
i
To select a CD from the CD changer*
magazine, press a number on the audio
system or the COMAND* system key
pad located in the center dashboard.