BMW 2009 M3 Sedan Manual Do Proprietário

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Technology for driving comfort and safety
Park Distance Control PDC*
The concept
The PDC assists you with maneuvering in tight 
parking spaces. Acoustic signals and a visual 
indicator
 
warn you of the presence of an object 
behind your vehicle. To measure the distance, 
there are four ultrasonic sensors in the 
bumpers.
These sensors have a range of approx. 6.5 ft/
2 m. However, an acoustic warning does not 
sound until an object is approx. 24 in/60 cm 
from the corner sensors, or approx. 5 ft/1.50 m 
from the center sensors.
PDC is a parking aid that can indicate 
objects when they are approached 
slowly, as is usually the case when parking. 
Avoid approaching an object at high speed, oth-
erwise physical circumstances may lead to the 
system warning being issued too late.
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Switching on automatically
With the engine running or the ignition switched 
on, the system is activated after approx. 1 sec-
ond when you engage reverse gear. Wait this 
short period before driving.
Switching off automatically
After approx. 165 ft/50 m of driving or over 
approx. 20 mph/30 km/h, the system switches 
off and the LED goes out.
Signal tones
When nearing an object, its position is indicated 
correspondingly by an interval tone. As the dis-
tance between vehicle and object decreases, 
the intervals between the tones become 
shorter. If the distance to the nearest object 
falls to below roughly 1 ft/30 cm, then a contin-
uous tone sounds.
An interval tone is interrupted after approx. 
3 seconds
>
if you stop in front of an object that has been 
detected by only one of the corner sensors
>
if you are driving parallel to a wall.
Malfunction
The indicator lamp in the instrument 
cluster comes on. PDC is malfunc-
tioning. A message appears on the 
Control Display. Have the system checked.
To avoid this problem, keep the sensors clean 
and free of ice or snow in order to ensure that 
they will continue to operate effectively. When 
using a high-pressure cleaner, do not spray the 
sensors for extended periods of time and only 
from a distance of at least 4 in/10 cm.
PDC with visual warning
The approach of the vehicle to an object is 
shown on the Control Display. Objects that are 
farther away are displayed on the Control Dis-
play before a signal tone sounds. The display 
appears on the Control Display as soon as PDC 
is activated.
System limitations
Even with PDC, final responsibility for 
estimating the distance between the 
vehicle and any obstructions always remains 
with the driver. Even when sensors are pro-
vided, there is a blind spot in which objects can 
no longer be detected. The system is also sub-
ject to the physical limits that apply to all forms 
of ultrasonic measurement, such as those 
encountered with trailer towbars and hitches, 
thin or wedge-shaped objects, etc. Low objects 
that have already been displayed, e.g. curbs, 
can disappear again from the detection area of 
the sensors before or after a continuous tone 
sounds. Higher, protruding objects, e.g. ledges, 
cannot be detected. Loud sound sources out-
side or inside the car can drown out the PDC 
signal. Therefore, always drive cautiously, oth-
erwise there is a risk of personal injury or prop-
erty damage.
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