Mercedes-Benz 2007 SL 55 AMG Operator's Manual page 54

Starting with KEYLESS-GO*
You can start your vehicle without the
SmartKey in the starter switch using the
KEYLESS-GO start/stop button on the
gear selector lever.
KEYLESS-GO start/stop button
1 USA only
2 Canada only
Make sure the gear selector lever is set
to P.
Depress the brake pedal during the
starting procedure. Do not depress ac-
celerator.
Press the KEYLESS-GO start/stop
button once.
The engine starts if the SmartKey with
KEYLESS-GO is in the vehicle.
For information on turning off the engine
with KEYLESS-GO, see "Turning off with
KEYLESS-GO*" ( page 62).
Starting difficulties
If the engine does not start as described,
carry out the following steps:
If you are starting the engine with the
SmartKey: Turn SmartKey in starter
switch to position 0 and repeat starting
procedure.
Getting started
If you are starting the engine with
KEYLESS-GO*: Close any doors that
may be open to allow for better detec-
tion of the SmartKey with
KEYLESS-GO.
Or:
Start the engine with the SmartKey as
radio signals from another source may
be interfering with the SmartKey with
KEYLESS-GO*.
Repeat the starting procedure
( page 52). Remember that extended
starting attempts can drain the battery.
Get a jump start ( page 419).
If the engine does not start after several
starting attempts, there could be a mal-
function in the engine electronics or in the
fuel supply system.
Contact an authorized Mercedes-Benz
Center.
Driving
53