Mercedes-Benz 2008 CL 550 4MATIC Operator's Manual page 304

Controls in detail
Starter switch positions
the engine can be started using the
KEYLESS-GO start/stop button.
The function of the SmartKey overrules the
KEYLESS-GO function.
The SmartKey must be located in the vehicle.
KEYLESS-GO start/stop button
1
Starter switch
2
X
Insert KEYLESS-GO start/stop button
into starter switch
2
already).
i When you switch from SmartKey mode
back to KEYLESS-GO mode, the system
requires 2 seconds of detection time
before you can use the KEYLESS-GO button
as usual.
302
More user manuals on
X
Make sure the automatic transmission is in
park position P.
X
Do not depress the brake pedal.
KEYLESS-GO start/stop button
USA only
=
Canada only
?
Position 0
1
Before you press the KEYLESS-GO start/stop
(if not inserted
button, the vehicle's on-board electronics
have status 0 (as with SmartKey removed).
Position 1
X
Press the KEYLESS-GO start/stop button
once.
This supplies power for some electrical
consumers, such as radio functions.
ManualsBase.com
i If you now press the KEYLESS-GO start/
stop button
once more, the ignition (position 2) is
R
switched on
twice more the power supply is again
R
switched off
Ignition (or position 2)
X
Press the KEYLESS-GO start/stop button
twice.
This supplies power for all electrical
consumers.
All lamps (except high-beam headlamp
indicator lamp and turn signal indicator
lamps unless activated) in the instrument
cluster come on. If a lamp in the instrument
cluster fails to come on when the ignition
is switched on, have it checked and
replaced if necessary. If a lamp in the
instrument cluster remains on after
starting the engine or comes on while
driving, refer to "Lamps in instrument
cluster" ( Y page 527).
i If you now press the KEYLESS-GO start/
stop button once, the power supply is again
switched off.