Mercedes-Benz 2009 SLR McLaren Roadster Operator's Manual page 144

Controls in detail
Control system
Redialing
The control system stores the most recent-
ly dialed phone numbers. This eliminates
the need to search through your entire
phone book.
Press button ÿ or è repeatedly
until you see the TEL menu in the left
multifunction display.
In the right multifunction display you
will see the standby message.
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Press button s.
In the right multifunction display you
see the first number in the redial
memory.
Press button j or k repeatedly
until you see the desired name in the
right multifunction display.
Press button s.
The control system dials the selected
phone number.