Mercedes-Benz 2007 R 320 CDI Operator's Manual page 70

Locking with KEYLESS-GO*
1 Lock button on the outside door handle
Press lock button 1 on an outside
door handle.
With the tailgate and all doors closed,
the turn signal lamps flash three times.
The locking knobs on the doors move
down. The anti-theft alarm system is
armed.
For more information, see "Locking and
unlocking" ( page 112).
Getting started
Parking and locking
69