BMW 2009 M5 Owner's Manual page 68

Every time you press the lever, the vehicle's
speed increases by roughly 1 mph/1 km/h.
Press lever to resistance point for a longer time:
The vehicle accelerates without pressure on
the accelerator pedal. The system maintains
and stores your current speed as soon as you
release the lever.
Press the lever beyond the resistance point:
The speed is increased to the next fives posi-
tion in the mph display or the next tens position
in the km/h display.
Press and hold the lever beyond the resistance
point:
The vehicle accelerates more quickly.
Maintaining speed, storing speed, and
decelerating
Pull the lever, arrow 2:
Functions are the same as 1; the speed is
reduced.
Interrupting system
Press the lever up or down, arrow 3: the
display 1 in the speedometer changes color.
In addition, the system is interrupted:
> when you apply the brakes, even with the
handbrake
>
when you clutch
> when you shift using the shift paddles or the
selector lever
> when the DSC comes on
Resuming stored speed
Press button 4:
The stored speed is resumed and maintained.
Deactivating system
> Press the lever up or down twice, arrow 3
> Switch off the ignition
The speed stored in the memory is deleted.
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Online Edition for Part no. 01 41 2 600 738 - © 08/08 BMW AG
Displays in instrument cluster
1 Stored speed
2 Selected speed is displayed briefly