2003 MERCEDES-BENZ CLK320 COUPE engine

133 Controls in detail
Control system

Press
æ
or
ç
to select the de-
sired station selection mode. You can
select:


freq.


memory
selects next stored station
Setting automatic locking
Use this function to activate or deactivate
the automatic central locking. With the au-
tomatic central locking system activated,
the vehicle is centrally locked at vehicle
speeds of approximately 9 mph
(15 km/h).

Move the selection marker with
the
æ
or
ç
button to the
Vehi-
cle
submenu.

Press button
j
or
k
repeatedly
until you see this message in the dis-
play:
Automatic door lock
.
The selection marker is on the current
setting.

Press
æ
or
ç
to switch
Automatic door lock
on or
off
.Convenience submenu
Access the
Convenience
submenu via the
Settings
menu. Use the
Convenience
sub-
menu to change the settings for a number
of convenience features. The following
functions are available:
Activating easy-entry/exit feature
Use this function to activate and deacti-
vate the easy-entry/exit feature. When the
feature is activated, the steering wheel and
driver’s seat will move back to facilitate ex-
iting when you


remove the key from the starter switch


open the driver’s door
However, the engine must be turned off.
Function
Page
Activate easy-entry/exit feature
see
below
Set key dependency
135
Set parking position for exterior
rear view mirror
135

138 Controls in detailControl systemTEL menu*
You can use the functions in the
Tel
menu
to operate your telephone, provided it is
connected to a hands-free system and
switched on.

Switch on the telephone and Audio or
COMAND*.

Press button
ÿ
or
è
on the
steering wheel repeatedly until you see
the
Tel
menu in the display.Which messages will appear in the display
field depends on whether your telephone is
switched on or off:


If the telephone is off, the message in
the multifunction display is:
Tel off
.


If the telephone is on:
The telephone will then search for a
network. During this time the display is
empty.
As soon as the telephone has found a
network,
READY
is indicated in the dis-
play.
1Signal strength
This standby message indicates that your
telephone is ready for use and you can op-
erate it using the control system.
Warning!
G
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-
o m m e n d t h a t y o u p u l l o v e r t o a s a f e l o c a t i o n
and stop before placing or taking a tele-
phone call. If you choose to use the tele-
phone while driving, please use the
hands-free device and only use the tele-
phone when weather, road, and traffic con-
ditions permit.
Some jurisdictions prohibit the driver from
using a cellular telephone while driving a ve-
hicle.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of approximately
44 feet (approximately 13.5 m) every sec-
ond.
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
personal injury.

141 Controls in detail
Automatic transmission
Automatic transmission
Information for driving with an automatic
transmission is found in the “Getting start-
ed” section (
page 43).
Your transmission adapts its gear shifting
process to your individual driving style by
continually adjusting the shift points up or
down. These shift point adjustments are
performed based on current operating and
driving conditions.
If the operating conditions change the au-
tomatic transmission reacts by adjusting
its gear shift program.The automatic transmission selects indi-
vidual gears automatically, depending on


the selector lever positionD with gear
ranges4, 3, 2, 1 (
page 143)


the selected shift program (W/S)
(page 145) or
(M/C/S)(CLK55AMG)(
page 147)


the position of the accelerator pedal
(page 146)


the vehicle speed
The current selector lever position and
shift program (W/S) or
(M/C/S) (CLK 55 AMG) appear in the
speedometer display (
page 114).When the selector lever is in positionD,
you can influence transmission shifting by


limiting the gear range


changing gears yourself
iDuring the brief warm-up the transmis-
sion upshifting is delayed. This allows
the catalytic converter to heat up more
quickly to operating temperatures.
Warning!
G
It is dangerous to shift the selector lever out
of P or N if the engine speed is higher than
idle speed. If your foot is not firmly on the
brake pedal, the vehicle could accelerate
quickly forward or reverse. You could lose
control of the vehicle and hit someone or
something. Only shift into gear when the en-
gine is idling normally and when your right
foot is firmly on the brake pedal.

142 Controls in detailAutomatic transmissionOne-touch gearshifting
Even with an automatic transmission you
can change the gears yourself when the
selector lever is in positionD.
Downshifting
Briefly press the selector lever to the
left in the D–direction.
The transmission will shift from the current
gear to the next lower gear. This action si-
multaneously limits the gear range of the
transmission (
page 143).Upshifting

Briefly press the selector lever to the
right in the D+direction.
The transmission will shift from the current
gear to the next higher gear as permitted
by the shift program. This action simulta-
neously extends the gear range of the
transmission.Canceling gear range limit

Press and hold the selector lever in the
D+direction until D reappears in the
tachometer display field.
The transmission will shift from the current
gear range directly to gear rangeD.
Shifting into optimal gear range

Press and hold the gear selector lever
in the D–direction.
The transmission will automatically select
the gear range suited for optimal accelera-
tion and deceleration. This will involve
shifting down one or more gears.
Warning!
G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced vehi-
cle control. Your vehicle’s ABS will not pre-
vent this type of loss of control.
iTo avoid overrevving the engine when
the selector lever is moved in the
D–direction, the transmission will not
shift to a lower gear if the engine's
max. speed would be exceeded.

143 Controls in detail
Automatic transmission
Gear ranges
With the selector lever in positionD, you
can limit the transmission’s gear range by
pressing the lever to the left (D-), and re-
verse the gear range limit by pressing the
lever to the right (D+).
The selected gear range will appear in the
tachometer display field. If you press on
the accelerator when the engine has
reached its rpm limit, the transmission will
upshift beyond any gear range limit
selected.
Gear
range
Effect
é
The transmission shifts
through fourth gear only.
è
The transmission shifts
through third gear only.
With this selection you can
use the braking effect of the
engine.
Gear
range
Effect
ç
The transmission shifts
through second gear only.
Allows the use of engine’s
braking power when driving

on steep downgrades


in mountainous regions


under extreme operating
conditions
æ
The transmission operates
only in first gear.
For maximum use of engine’s
braking effect on very steep
or lengthy downgrades.

145 Controls in detail
Automatic transmission
Program mode selector switch
1Program mode selector switch
S Standard For regular driving
W Winter For winter driving

Press the program mode selector
switch repeatedly until the letter of the
desired shift program appears in the
speedometer display field
(page 114).
Select
Wfor winter driving:


The vehicle starts out in second
gear (both forward and reverse) for
gentler starts. This does not apply if
full throttle is applied or gear
range1 is selected.


Traction and driving stability are im-
proved on icy roads.


Upshifts occur earlier even when
you give more gas. The engine then
operates at lower rpms and the
wheels are less likely to spin.


The power transmission ratio for se-
lector lever positionR changes de-
pending on the program mode
selected (
W or
S).
Warning!
G
When leaving the vehicle, always remove the
key from the starter switch, take the Smart-
Key with KEYLESS-GO* (if so equipped) with
you and lock the vehicle. Do not leave chil-
dren unattended in the vehicle, or with ac-
cess to an unlocked vehicle. Children could
move the selector lever from positionP,
which could result in an accident and/or se-
rious personal injury.
!Never change the program mode when
the selector lever is out of positionP. It
could result in a change of driving char-
acteristics for which you may not be
prepared.

146 Controls in detailAutomatic transmissionAccelerator position
Your driving style influences the transmis-
sion’s shifting behavior:
Less throttle Earlier upshifting
More throttle Later upshifting
Kickdown
Use kickdown when you want maximum
acceleration.
Press the accelerator past the point of
resistance.
The transmission shifts into a lower
gear.

Ease on the accelerator when you have
reached the desired speed.
The transmission shifts up again.Emergency operation (Limp Home
Mode)
If vehicle acceleration worsens or the
transmission no longer shifts, the trans-
mission is most likely operating in limp
home (emergency operation) mode. In this
mode, only 2nd gear and reverse gear can
be activated.
Stop the vehicle.

Move selector lever toP.

Turn off the engine.

Wait at least ten seconds before re-
starting.

Move selector lever to positionD (for
2nd gear) orR.

Have the transmission checked at an
authorized Mercedes-Benz Center as
soon as possible.Steering wheel gearshift control
(Speedshift) and manual shift program
CLK 55 AMG
The CLK 55 AMG can be driven in both the
automatic and manual shift program
modes. In the manual shift program mode,
you can change the gears yourself on the
steering wheel or by using the selector le-
ver.
1Shift button
2Left button: downshift
3Right button: upshift

147 Controls in detail
Automatic transmission
To do so, you must first select the manual
shift program M on the program mode se-
lector switch.
1Program mode selector switch
S SPORT For regular driving
C COMFORT For comfortable driving
M MANUAL For manual gear shifting
The selected shift program (
S/C/M) is indi-
cated in the speedometer display field
(
page 114).Activating steering wheel gearshift
control

Press the program mode selector
switch repeatedly until the
M for manual
shift program appears in the speedom-
eter display field.
Automatic gear shifting is deactivated.Upshifting

Press button 3 located on the right side
of the steering wheel.
or

Briefly press the selector lever to the
right in the D+direction.
The transmission shifts to the next
higher gear.
Warm up the engine gently. Do not place
full load on the engine until the operating
temperature has been reached. Shift into
reverse gear only when the vehicle is
stopped.
!Never change the program mode when
the selector lever is out of positionP. It
could result in a change of driving char-
acteristics for which you may not be
prepared.
!When driving off on slippery road sur-
faces, avoid spinning a drive wheel for
longer periods. This may cause damage
to the drivetrain.