BMW Z4 Roadster Owner's Handbook Manual page 216

CONTROLS
When reversing, pay attention to the vehicle
surroundings and observe the PDC informa‐
tion. Brake if necessary.
5. Follow the instructions on the Control Display
as applicable.
6. Stop when you reach normal road traffic at
the latest and take over control of the vehicle,
for example by engaging a forward gear.
At the end of the saved stretch of road, a sig‐
nal sounds and a message appears prompt‐
ing you to take over control of the vehicle.
Cancelling the system
The system automatically cancels in situations
such as the following:
▷ If the driver grasps the steering wheel or
steers the vehicle.
▷ When a forward gear is engaged.
▷ If the vehicle is stationary for several minutes.
▷ If the vehicle leaves the stored lane during re‐
versing; for example, at the maximum steer‐
ing angle.
Limits of the reversing assistant
▷ When you reach normal road traffic or if you
suddenly encounter an obstacle, stop imme‐
diately and take over control of the vehicle.
▷ The maximum speed when reversing is limi‐
ted to approx. 9 km/h/6 mph.
If the maximum speed is exceeded, a warning
is issued and the function may be cancelled.
System limits
Safety note
WARNING
The system may not respond at all, or may re‐
spond too late, incorrectly or without justifica‐
tion due to limits of the system. There is a dan‐
ger of accidents or damage to property.
216
Driver Assistance Systems
Observe the information on the system limits
and intervene actively if necessary.
No parking assistance
The Park Assistant does not provide assistance
in the following situations:
▷
▷
Functional limitations
The system may have limited functionality in the
following situations, for example:
▷
▷
▷
▷
▷
▷
▷
Limits of ultrasound measurement
Certain conditions and objects may push ultra‐
sound measurement to its limits, including the
following:
▷
▷
▷
▷
▷
Online Edition for Part no. xxx - X/18
On sharp bends.
In angled parking spaces.
On uneven road surfaces, for example gravel
roads.
On slippery surfaces.
On steep upward or downward gradients.
If leaves have collected or snow has drifted or
been piled up in the parking space.
If the emergency wheel has been fitted.
If there is a change in a measured parking
space.
If there are ditches or sudden drops, for ex‐
ample a quayside.
Small children and animals.
Persons wearing certain types of clothing, for
example a coat.
External interference with the ultrasound, for
example by passing vehicles or loud ma‐
chines.
Sensors which are dirty, iced up, damaged or
incorrectly adjusted.
Certain weather conditions, for example high
humidity, wet conditions, snowfall, extreme
heat or strong wind.