Mercedes-Benz 2008 R 320 CDI 4MATIC Operator's Manual page 193

Controls in detail
Automatic transmission
Shifting from P to R
With the vehicle at a standstill, depress
the brake pedal and keep it pressed.
Move gear selector lever up past the
resistance point to select reverse
gear R.
i
The gear selector lever returns to its original
position.
Release the parking brake ( page 56).
Release the brake pedal.
Carefully depress the accelerator pedal
to drive off when it is safe to do so.
192
Shifting from P to D
With the vehicle at a standstill, depress
the brake pedal and keep it pressed.
Move gear selector lever down past the
resistance point to select drive
position D.
i
The gear selector lever returns to its original
position.
Release the parking brake ( page 56).
Release the brake pedal.
Carefully depress the accelerator pedal
to drive off when it is safe to do so.
Shifting from D, R, or N to P
If you want to select park position P with
the transmission being in drive position D,
reverse gear R or neutral position N:
With the vehicle at a standstill, depress
the brake pedal and keep it pressed.
Step firmly on parking brake pedal
( page 65).
Press button on gear selector lever in
direction of arrow ( page 190) to
select park position P.
Release the brake pedal.
!
Shift the automatic transmission directly
from drive position D to reverse gear R, from
reverse gear R to drive position D or directly to
park position P only when the vehicle is stopped.
Otherwise the automatic transmission could be
damaged.
When trying to free a vehicle stuck in mud or
snow, see "Rocking the vehicle" ( page 198).