Active cruise control, Driving – BMW 328i Coupe 2011 User Manual

Page 66

Driving

Resuming a speed stored beforehand

Press the button, arrow

4. The last stored

speed is resumed and maintained.
In the following instances, the stored speed is
deleted and can no longer be resumed:

When driving stability control systems are
intervening

In cars with manual transmission: when you
shift gears very slowly or shift to neutral

In cars with automatic transmission: when
you engage selector lever position N

In cars with Sports automatic transmission
with double clutch: when you engage selec-
tor lever position N

When the ignition is switched off

Displays in the instrument cluster

1 Stored speed
2 Selected speed is displayed briefly

If --- mph or --- km/h temporarily appears
in the instrument cluster display, it is pos-

sible that the system prerequisites for operation
are currently not met.
Calling up Check Control messages, refer to
page

Malfunction

The warning lamp comes on when
the system has failed. More informa-
tion can be found beginning on

page

164

Active cruise control*

The concept

With active cruise control, you can select a
desired speed which is not only automatically
maintained when driving on open roadways, but
also varied to maintain a selected distance set-
ting as slower traffic is encountered.
Active cruise control is a technological advance
over the familiar cruise control and is a welcome
relief from the constant adjustment of speed
that can accompany driving in traffic on high-
ways or other high-speed thoroughfares. Espe-
cially on longer trips, the system can reduce
fatigue and tension, while increasing your
enjoyment of driving. Please use it safely and
responsibly.
Within the limits of its capability, the system
automatically adapts the car's speed to that of a
slower vehicle in front of you. You can specify
the distance to be maintained from the vehicle
in front in four stages. For safety reasons, the
distance is speed-dependent. Based on your
selected distance setting, the system automat-
ically decreases the throttle setting and lightly
applies the brakes if necessary. The vehicle
brake lamps will automatically illuminate to
signal a following driver to take action. In addi-
tion, it may be necessary for the vehicle or the
driver to downshift, depending on the kind of
transmission your vehicle is equipped with, to
maintain the distance setting selected. If the
vehicle ahead speeds up or when the lane
ahead becomes clear, your vehicle will acceler-
ate to the speed you have selected by increas-
ing the throttle setting and shifting gears auto-
matically or by the driver as needed. Your
selected speed will be held when driving down-
hill, too.
Since this active cruise control system is a new
technology and operates differently from con-
ventional cruise control systems which you may
be accustomed to, you are strongly urged to
read all of the pages relating to this system
before use. Pay special attention to the System
limitations section beginning on page