BMW 528I User Manual download pdf (Page 90)

90n

The PDC assists you when you are

parking. A signal warns you of the real

distance to an obstacle. To do this, four

ultrasonic sensors in the rear bumper

measure the distance from the nearest

object. The monitoring range for the

two corner sensors ends approx. 2 feet

(60 cm) beyond the respective bumper.

The range of the two middle sensors is

approx. 4.9 feet (1.50 meters) outward.

The system starts to operate automati-

cally about one second after you select

reverse with the ignition key in posi-

tion 2. It is similarly deactivated when

you engage reverse gear or move the

selector lever position from the "R" po-

sition.

Acoustical signals

The distance to the nearest object is in-

dicated 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 presence

of an object less than 1 ft. (30 cm)

away.

The warning signal will be canceled af-

ter approx. 3 seconds if the distance to

the obstruction 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 cause checked

and corrected by your authorized BMW

center.

The PDC does not remove the

driver's personal responsibility for

evaluating the distance between the ve-

hicle and any obstacles. Even when

sensors are involved, there is a blind

spot in which objects cannot be de-

tected. This applies especially in those

cases where the system approaches

the physical limits of ultrasonic mea-

surement, as occurs with tow bars and

trailer couplings, and in the vicinity of

thin and painted objects.

Certain sources of sound, such as a

loud radio, could drown the PDC signal

tone.<

Keep the sensors clean and free

of ice or snow in order to ensure

that they continue to operate effectively.

Do not apply high pressure spray to the

sensors for a prolonged period of time.

Maintain an adequate distance of more

than approx. 4 inches (10 cm).<

Park Distance Control (PDC)*

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