BMW Z4 sDrive30i Owner's Manual page 84

If the distance to a detected object is less than
approx. 12 in/30 cm, a continuous tone is
sounded.
If objects are located both in front of and behind
the vehicle, an alternating continuous signal is
sounded.
The intermittent tone is interrupted after approx.
3 seconds:
▷ If the vehicle stops in front of an object that
is detected by only one of the corner sen‐
sors.
▷ If moving parallel to a wall.
The signal tone is switched off:
▷ When the vehicle moves away from an ob‐
ject by more than approx. 4 in/10 cm.
▷ When selector lever position P is engaged.
Malfunction
The indicator lamp in the instrument
cluster comes on. PDC has failed.
Have the system checked.
To ensure full operability:
▷ Keep the sensors clean and free of ice.
▷ When using high-pressure washers, do not
spray the sensors for long periods and main‐
tain a distance of at least 12 in/30 cm.
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