BMW Z4 Roadster 2.5i 2004 - Manual (Page 47)

Reference
At a glance
Controls
Driving tips
Mobility
45
Cruise control*
1 To maintain and store speed/
to accelerate
2 To decelerate
3 To recall the stored setting
4 To deactivate the system
Do not use cruise control on twisting
roads, when high traffic density pre-
vents driving at a constant speed, when the
road surface is slick, e.g. from snow, rain or
ice, nor when the road surface is loose, e.g.
from rocks or sand.
<
To maintain and store speed/
to accelerate
You can maintain and store any desired
speed above approx. 20 mph / 30 km/h.
Press the lever briefly in direction 1:
The system maintains and stores the cur-
rent vehicle speed. Every time you tap the
lever, the speed increases by approx.
0.6 mph / 1 km/h.
Hold the lever in position 1:
The vehicle accelerates without pressure
on the accelerator pedal. As soon as you
release the lever, the system stores and
maintains the current speed.
If, on a downhill grade, the engine
braking effect is not sufficient, the
controlled speed can be exceeded. Speed
can drop on uphill grades if the engine out-
put is insufficient.
<
To decelerate
Press the lever briefly in direction 2:
When the cruise control is active, vehicle
speed is reduced by approx. 0.6 mph /
1 km/h every time you tap the button.
Hold the lever in position 2:
With the cruise control active, the system
automatically reduces the throttle opening
to slow the vehicle. As soon as you release
the lever, the system stores and maintains
the current speed.
To recall the stored setting
Press the lever briefly in direction 3:
The vehicle accelerates to and maintains
the last speed stored.
To deactivate the system
Press the lever briefly in direction 4:
The cruise control is deactivated immedi-
ately.
In addition, the system is automatically
deactivated in response to the following
conditions:
> When you apply the brakes
> When you depress the clutch or move
the automatic selector lever from D to N
> If you exceed or fall below the preset
speed for an extended period, for
example by depressing the accelerator.
You can recall the speed last stored.
Cruise control is also deactivated when the
ignition key is turned to position 0.
The stored speed is cleared in this case.
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