Mercedes-Benz 2008 R 320 CDI 4MATIC Operator's Manual page 56

Gasoline engine
Make sure the automatic transmission
is set to P.
The transmission position indicator in
the multifunction display should be
on .
P
Depress the brake pedal during the
starting procedure.
Do not depress the accelerator.
Press the KEYLESS-GO start/stop
button once.
The engine starts if the SmartKey with
KEYLESS-GO is in the vehicle.
Diesel engine
Make sure the automatic transmission
is set to P.
The transmission position indicator in
the multifunction display should be
on .
P
Depress the brake pedal during the
starting procedure.
Do not depress the accelerator.
Press the KEYLESS-GO start/stop
button once.
The engine preglows and starts if the
SmartKey with KEYLESS-GO is in the
vehicle.
i
If the engine is at operating temperature,
the time the engine needs to preglow is reduced.
Getting started
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.
If you are starting the engine with
KEYLESS-GO*: Close any doors that
may be open to allow for better
detection of the SmartKey with
KEYLESS-GO.
or
Remove KEYLESS-GO start/stop
button from starter switch.
Start the engine with the SmartKey as
radio signals from another source may
be interfering with the SmartKey with
KEYLESS-GO*.
Driving
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