Driving and operating
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accelerates the vehicle to return to
the stored set speed. If the driver
operates the turn lights to overtake a
slower vehicle, the semi-adaptive
cruise control allows the vehicle to
temporarily approach the vehicle
ahead to help passing it. However,
the set speed will never be exceeded.
If the selected following distance
cannot be maintained anymore
because the vehicle is moving too fast
or the vehicle ahead is moving too
slowly, a warning chime is given and
a message is displayed in the Driver
Information Centre. The message
prompts the driver to take back
control of the vehicle.
The semi-adaptive cruise control can
store set speeds over 25 mph and
93 mph. Additionally at least the third
gear must be engaged on manual
transmission, on automatic
transmission position D / A or the
second or a higher gear in position
M must be selected.
Semi-adaptive cruise
control
9 Warning
The complete driver attention is
always required while driving with
semi-adaptive cruise control. The
driver stays fully in control of the
vehicle because the brake pedal
and the accelerator pedal have
priority over any semi-adaptive
cruise control operation.
The semi-adaptive cruise control is an
enhancement to the conventional
cruise control with the additional
feature of maintaining a certain
following distance to the vehicle
ahead. It uses a camera at the top of
the windscreen and a radar sensor in
the front bumper to detect the
vehicles ahead. If no vehicle is
detected in the driving path, the semi-
adaptive cruise control will behave
like a conventional cruise control.
Switching on the system
The semi-adaptive cruise control can
be switched on at a speed between
25 mph and 93 mph.
A precondition is that semi-adaptive
cruise control is not deactivated in the
vehicle personalisation menu 3 127.
The semi-adaptive cruise control
automatically decelerates the vehicle
when approaching a slower moving
vehicle. It then adjusts the vehicle
speed to follow the vehicle ahead at
the selected following distance. The
vehicle speed increases or decreases
to follow the vehicle ahead, but will
not exceed the set speed. The semi-
adaptive cruise control does not
actively brake the vehicle but uses
engine braking.
If the vehicle ahead accelerates or
changes lane, the semi-adaptive
cruise control progressively