2004 MERCEDES-BENZ CLK55AMG COUPE ESP

86 Controls in detailLocking and unlocking
In the “Controls in detail” section you will
find detailed information on how to oper-
ate the equipment installed on your vehi-
cle. If you are already familiar with the
basic functions of your vehicle, this section
will be of particular interest to you.
To quickly familiarize yourself with the ba-
sic functions of the vehicle, refer to the
“Getting started” section of this manual.
The corresponding page numbers are giv-
en at the beginning of each segment.
Locking and unlocking
SmartKeys
Your vehicle comes supplied with two
SmartKeys, each with remote control and
a removable mechanical key. The locking
tabs for the mechanical key portion of the
two SmartKeys are a different color to help
distinguish each SmartKey unit.
The SmartKey provides an extended oper-
ating range. To prevent theft, however, it is
advisable to only unlock the vehicle when
you are in close proximity to it.
The SmartKey centrally locks and unlocks:

the doors


the trunk


the fuel filler flap
SmartKey with remote controls1‹ Lock button
2Š Opening button for trunk lid
3Mechanical key locking tab
4ΠUnlock button
5Battery check lamp
6Â Panic button (
page 75)
!To prevent possible malfunction, avoid
exposing the SmartKey to high levels of
electromagnetic radiation.
iYou can also open and close the power
windows (
page 212) and slid-
ing/pop-up roof* (
page 216) using
the SmartKey.

97 Controls in detail
Locking and unlocking
Opening the trunk from the inside
You can open the trunk from the inside if
the vehicle is stationary.
A minimum height clearance of 5.71 ft
(1.74 m) is required to open the trunk lid.
The switch is located on the driver’s door.
1Remote trunk lid switch with indicator
lamp
Press remote trunk lid switch1.
The trunk lid opens. The indicator lamp
in the switch remains lit as long as the
trunk is open.The trunk can also be opened using the
SmartKey (
page 88) or from its inside in
an emergency, see “Trunk lid emergency
release” (
page 103).
Closing the trunk
1Handle
Lower trunk lid by pulling firmly on
handle1.

Close trunk lid with hands placed flat
on it.
!The trunk lid swings open upwards au-
tomatically. Always make sure there is
sufficient overhead clearance.iIf the trunk lid does not open, it is still
locked separately (if applicable)
(page 104)
If the vehicle was previously centrally
locked, the trunk lid will lock automati-
cally when closed (
page 97). The
turn signals will flash three times to
confirm locking.
Warning!
G
To prevent possible personal injury, always
keep hands and fingers away from the trunk
lid opening when closing the trunk. Be espe-
cially careful when small children are
around.

100 Controls in detailLocking and unlockingClosing the trunk from the outside
(vehicles without KEYLESS-GO*)
1Trunk lid closing switch
Press trunk lid closing switch1 brief-
ly.
The trunk lid closes.
If the trunk lid comes into contact with an
object while closing (e.g. luggage that has
been piled too high), the closing procedure
is stopped and the trunk reopens slightly.
Warning!
G
Monitor the closing procedure carefully to
ensure that no one is in danger of being in-
jured. To prevent possible personal injury,
always keep hands and fingers away from
the trunk opening when closing the trunk.
Be especially careful when small children
are around. To stop the closing procedure,
press the remote trunk lid opening or clos-
ing switch (on driver’s door), the trunk lid
closing switch1, or the Š button on the
SmartKey.
When leaving the vehicle, always remove the
SmartKey from the starter switch, take the
SmartKey with you and lock your vehicle. Do
not leave children unattended in the vehicle,
or with access to an unlocked vehicle. Unsu-
pervised use of vehicle equipment may
cause an accident and/or serious personal
injury.
Warning!
G
Only drive with the trunk closed. Among oth-
er dangers, such as your view being blocked,
exhaust fumes may enter the vehicle
interior.iDo not place the SmartKey in the open
trunk. You may lock yourself out.

101 Controls in detail
Locking and unlocking
Closing the trunk from the outside
(vehicles with KEYLESS-GO*)
1Trunk lid closing switch
Make sure you have the SmartKey with
KEYLESS-GO with you.

Press trunk lid closing switch1 brief-
ly.
The trunk lid closes.
If the trunk lid comes into contact with an
object while closing (e.g. luggage that has
been piled too high), the closing procedure
is stopped and the trunk reopens slightly.
iTo prevent a possible inadvertent lock-
out, the trunk lid will open automatical-
ly if a SmartKey with KEYLESS-GO* is
recognized inside the vehicle or in the
trunk.Warning!
G
Only drive with the trunk closed. Among oth-
er dangers, such as your view being blocked,
exhaust fumes may enter the vehicle
interior.
Warning!
G
Monitor the closing procedure carefully to
ensure that no one is in danger of being in-
jured. To prevent possible personal injury,
always keep hands and fingers away from
the trunk opening when closing the trunk.
Be especially careful when small children
are around. To stop the closing procedure,
press the remote trunk lid opening or clos-
ing switch (on driver’s door), the trunk lid
closing switch1, or the Š button on the
SmartKey with KEYLESS-GO.
When leaving the vehicle, always remove the
SmartKey from the starter switch, take the
SmartKey with KEYLESS-GO with you and
lock your vehicle. Do not leave children un-
attended 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.

102 Controls in detailLocking and unlockingClosing the trunk and locking the vehi-
cle from the outside (vehicles with
KEYLESS-GO*)
1KEYLESS-GO locking/closing switch
You can close the trunk lid and lock the ve-
hicle simultaneously.
Make sure you have the SmartKey with
KEYLESS-GO with you.

Press switch1 briefly.
The vehicle is locked and the trunk lid
closes automatically. The turn signals
flash three times to confirm locking.If the trunk lid comes into contact with an
object while closing (e.g. luggage that has
been piled too high), the closing procedure
is stopped and the trunk reopens slightly.
iTo prevent a possible inadvertent lock-
out, the trunk lid will open automatical-
ly if a SmartKey with KEYLESS-GO* is
recognized inside the vehicle or in the
trunk.Warning!
G
Only drive with the trunk closed. Among oth-
er dangers, such as your view being blocked,
exhaust fumes may enter the vehicle
interior.
Warning!
G
Monitor the closing procedure carefully to
ensure that no one is in danger of being in-
jured. To prevent possible personal injury,
always keep hands and fingers away from
the trunk opening when closing the trunk.
Be especially careful when small children
are around. To stop the closing procedure,
press the remote trunk lid opening or clos-
ing switch (on driver’s door), the trunk lid
closing switch1, or the Š button on the
SmartKey with KEYLESS-GO.
When leaving the vehicle, always remove the
SmartKey from the starter switch, take the
SmartKey with KEYLESS-GO with you, and
lock your vehicle. Do not leave children un-
attended 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.

120 Controls in detailLighting
Manual headlamp mode
The low beam headlamps and parking
lamps can be switched on and off with the
exterior lamp switch. For exterior lamp
switch, see “Exterior lamp switch”
(page 119).
Automatic headlamp mode
The parking lamps, low beam headlamps
and license plate lamps switch on and off
automatically depending on the brightness
of the ambient light.

Turn the exterior lamp switch to U.
iIf you remove the SmartKey and open
the driver’s door while the parking
lamps or low beam headlamps are
switched on,

a warning sounds


$ appears in the multifunction
display


the message
Turn off lamps!
ap-
pears in the multifunction display
iWith the daytime running lamp mode
activated and the engine running, the
low beam headlamps cannot be
switched off manually.
Warning!
G
If the exterior lamp switch is set toU,

the headlamps may switch off unexpect-
edly when the system senses bright am-
bient light, for example light from
oncoming traffic.


the headlamps will not be automatically
switched on under foggy conditions.
To minimize risk to you and to others, acti-
vate headlamps by turning exterior lamp
switch to B when driving or when traffic
and / or ambient lighting conditions require
you to do so.
In low ambient lighting conditions, only
switch from position U to B with the
vehicle at a standstill. Switching from U
to B will briefly switch off the head-
lamps. Doing so while driving in low ambient
lighting conditions may result in an acci-
dent.
The automatic headlamp feature is only an
aid to the driver. The driver is responsible for
the operation of the vehicle's lights at all
times.

128 Controls in detailInstrument clusterTachometer
The red marking on the tachometer de-
notes excessive engine speed.
To help protect the engine, the fuel supply
is interrupted if the engine is operated
within the red marking.
CLK 55 AMG
The tachometer of the CLK 55 AMG does
not have a red marking denoting excessive
engine speed.
To help protect the engine, the fuel supply
is interrupted if the engine is operated at
an excessive engine speed.
Outside temperature indicator
The outside temperature is displayed in
the multifunction display (
page 22). For
information on how to select the unit of the
displayed temperature, i.e. degrees Cel-
sius (°C) or degrees Fahrenheit (°F), see
“Selecting temperature display mode”
(
page 142)The temperature sensor is located in the
front bumper area. Due to its location, the
sensor can be affected by road or engine
heat during idling or slow driving. This
means that the accuracy of the displayed
temperature can only be verified by com-
parison to a thermometer placed next to
the sensor, not by comparison to external
displays (e.g. bank signs, etc.).
When moving the vehicle into colder ambi-
ent temperatures (e.g. when leaving your
garage), you will notice a delay before the
lower temperature is displayed.
A delay also occurs when ambient temper-
atures rise. This prevents inaccurate tem-
perature indications caused by heat
radiated from the engine during idling or
slow driving.
!Avoid driving at excessive engine
speeds, as it may result in serious en-
gine 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.

135 Controls in detail
Control system
Select radio station
Turn on the radio (
page 186). Vehi-
cles with COMAND*: Refer to separate
operating instructions.

Press buttonè orÿ repeatedly
until you see the currently tuned sta-
tion in the display.
1Waveband
2Setting for station selection using
memory
3Station frequency

Press buttonk orj repeatedly
until the desired station is found.The type of search depends on the setting
for the station tuning (
page 148):


The next stored station is selected (
SP)


Station searchSelect satellite radio station*
The Sirius -Satellite - Radio is treated as a
radio application.

Select SAT radio with the correspond-
ing softkey in the radio menu.
1SAT mode and preset number
2Setting for station selection using
memory
3Channel name or number

Press buttonk orj repeatedly
until the desired channel is found.
iYou can only store new stations using
the designated feature on the radio
(page 191). Vehicles with
COMAND*: Refer to separate operat-
ing instructions.
You can also operate the radio in the
usual manner.