BMW x3 2004 用户手册

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页码 132
 49
Technology for comfort, convenience 
and safety
Park Distance Control PDC*
The concept
PDC provides extra safety and conven-
ience during parking maneuvers. Signal 
tones indicate the current distance to an 
object behind or in front of your vehicle. 
Four ultrasonic sensors in both the 
bumpers monitor the distance to the near-
est object. 
The front and rear sensors on the corners 
have a range of approx. 2 ft/60 cm. The 
two rear middle sensors have a range of 
approx. 5 ft/1.50 m and the two front mid-
dle sensors of approx. 2.6 ft/80 cm.
PDC is a parking aid that can indicate 
objects when they are approached 
slowly, as is usually the case when parking. 
Avoid approaching objects too fast, other-
wise the system may give warning of phys-
ical obstacles too late.
<
If you are driving with a trailer, the rear sen-
sors are unable to make proper measure-
ments – so they do not switch on.
Automatic mode
As of ignition key position 2, the system 
automatically assumes operational status 
after a few seconds each time you engage 
reverse gear or selector-lever position R. 
Wait this short period before park-
ing.
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You can have a signal tone pro-
grammed into the system to verify 
that the PDC is active.
<
Automatic deactivation
After driving a distance of more than 
approx. 160 ft/50 m or exceeding a speed 
of approx. 20 mph/30 km/h, the system 
switches off and the indicator lamp goes 
out. You can reactivate the system manu-
ally as needed. 
Manual mode
Press the button; the indicator lamp comes 
on. 
Manual deactivation 
Press the button again; the indicator lamp 
goes out. 
Signal tones
The distance to an object behind the vehi-
cle is signaled in accordance with the posi-
tion by an intermittent tone from a loud-
speaker in the rear-end.
The distance to an object in front of the 
vehicle is signaled by an intermittent tone 
from a loudspeaker beneath the instrument 
cluster.
As the distance between vehicle and object 
decreases, the intervals between the tones 
become shorter. The signal tone becomes 
continuous once the distance to the near-
est object falls to below roughly 1  ft/30 cm. 
The warning signal is canceled after 
approx. 3 seconds when the distance to an 
object remains constant during this time, 
if you are moving parallel to a wall, for 
instance.
Malfunction
The indicator lamp flashes and a short 
steady signal tone is sounded.
Switch the system off and have the cause 
of the malfunction corrected by your BMW 
Sports Activity Vehicle Center. 
Online Edition for Part No. 01 41 0 157 631 - © 07/03 BMW AG