87 Technology for safety and driving convenience
Park Distance Control (PDC)*The conceptPDC provides extra safety and conve-
nience during parking maneuvers. 
Acoustic signals alert you to the 
momentary distance to an object 
behind your vehicle. The system fea-
tures four ultrasonic sensors mounted 
in your rear bumper. The monitoring 
range for the two corner sensors 
extends outward roughly 2 ft/60 cm, 
while two centrally located sensors 
detect objects at distances of up to 
approx. 5 ft/1.50 m.
PDC is a parking aid that can 
identify objects if they are 
approached slowly, as is generally the 
case when parking. Avoid driving 
towards objects rapidly; due to underly-
ing physical principles, the system may 
otherwise alert you too late for you to 
take evasive steps.<
The system starts to operate automati-
cally approx. one second after you 
select Reverse or move the selector 
lever into the R position with the igni-
tion key in position 2. 
Let this short period elapse before 
driving backwards.<
PDC is deactivated when you shift back 
out of Reverse.
You can have a signal set to con-
firm that the PDC has been acti-
vated.
indicated by a tone sounding at various 
intervals. As the distance between vehi-
cle and object decreases, the intervals 
between the tones become shorter. A 
continuous tone indicates the pres-
ence of an object less than 1 ft/30 cm 
away.
The warning signal is canceled after 
approx. three seconds if the distance to 
the object remains constant during this 
time – if you are moving parallel to 
a wall, for instance.
System malfunctions will be indicated 
by a continuous high-pitched tone 
when the system is activated the first 
time. Please have the problem fixed by 
your BMW center.
PDC does not replace the driver's 
personal responsibility for evaluat-
ing the distance between the vehicle 
and any objects. Always remember that 
the sensors can neither detect nor pro-
vide warnings of obstacles located 
within their blind angles. This applies 
especially in those cases where the 
system approaches the physical limits 
of ultrasonic measurement, as occurs 
with tow bars and trailer couplings, and 
in the vicinity of thin or wedge-shaped 
objects. Moreover, low objects that 
have already been detected – such as a 
curb edge – can disappear out of the 
detection range of the sensors before a 
continuous tone sounds.
Loud sources of sound from outside or 
inside the vehicle could drown out the 
PDC signal tone.<
Keep the sensors clean and free 
of ice or snow in order to ensure 
that they will continue to operate effec-
tively.
Do not apply high pressure spray to the 
sensors for a prolonged period of time.
Always maintain a distance of more 
than 4 in/10 cm.<
OverviewControlsMaintenanceRepairsDataIndex
handbook.book  Page 87  Wednesday, July 31, 2002  9:29 AM