3 Series E91 330d (M57T2) TOUR
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Visual warning with multi-audio system controller and Car Communication Computer
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Check Control
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System limits
Acoustic warnings
The acoustic warnings are emitted by:
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E70
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Mid-range loudspeaker with CHAMP, M-ASK or CCC
If an object is detected by 2 ultrasonic sensors, the loudspeaker closest to the object is actuated.
The mid-range loudspeakers can be actuated.
(depending on the model concerned, the mid-range loudspeakers in the left/right front doors or
left/right rear doors are actuated, for example)
If an object is detected by the central ultrasonic sensors, the mid-range loudspeakers on the left and
right-hand sides are actuated together.
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E87, E90, E91, E92, E93
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2 acoustic generators (1 front, 1 rear) with radio without audio system
The PDC control unit directly actuates the acoustic generators (front/rear in vehicle interior). Within the
acoustic generator, the control signal is transformed to approx. 48 volts. This voltage excites a piezo-
ceramic element that together with the resonator (housing) generates a warning tone.
Up to 09/2006, the tone is in the frequency range of approximately 1 kHz.
From 09/2006 the tone is in the frequency range of approximately 1.5 kHz (front) or 1.0 kHz (rear).
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Mid-range loudspeaker with RAD 2, M-ASK or CCC
If an object is detected by 2 ultrasonic sensors, the loudspeaker closest to the object is actuated.
The mid-range loudspeakers can be actuated.
(e.g. the mid-range loudspeakers in the front doors, left/right, in the rear shelf, left/right, in the rear
doors, left/right, in the rear shelf, left/right or in the rear side trim, left/right are actuated, depending on
the vehicle model.)
If an object is detected by the central ultrasonic sensors, the mid-range loudspeakers on the left and
right-hand sides are actuated together.
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R56
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1 acoustic generator (rear) with Radio Wave
The PDC control unit directly actuates the acoustic generators (in rear of vehicle interior). Within the
acoustic generator, the control signal is transformed to approx. 48 volts. This voltage excites a piezo-
ceramic element that together with the resonator (housing) generates a warning tone. The tone is in
the frequency range of approximately 1 kHz.
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Mid-range loudspeakers with Radio Wave CD, Radio Boost CD or CCC
If an object is detected by 2 ultrasonic sensors, the loudspeaker closest to the object is actuated. The
mid-range loudspeaker on the left/right can be actuated.
If an object is detected by the central ultrasonic sensors, the mid-range loudspeakers on the left and
right-hand sides are actuated together.
The distance to the object determines the tone sequence for the acoustic warning (the smaller the distance, the
faster the tone sequence).
A distance of less than approx. 25 centimetres is indicated by a continuous tone. The continuous tone is
SBT Park Distance Control E70, E87, E90, E91, E92, E93, R56
BMW AG - TIS
18.02.2013 20:58
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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