BMW Z4 Roadster Owner's Handbook Manual page 98

CONTROLS
Convertible top
General
The convertible top can be opened or closed
while travelling at speeds up to approximately
50 km/h, 30 mph.
If you exceed a speed of approximately 50 km/h,
30 mph while the convertible top is moving, the
movement will be halted.
Comply with the following notes:
▷ Close the convertible top when the vehicle is
parked. A closed convertible top protects the
vehicle against weather damage and, to a
limited extent, against theft.
▷ Even if the convertible top is closed, always
stow valuable items in the locked boot.
▷ At higher speeds, the negative pressure gen‐
erated in the interior of the vehicle can cause
the convertible top to start wobbling. Use the
ventilation system to increase the air flow so
that no partial vacuum is created in the vehi‐
cle.
▷ The engine cannot be started at the same
time the convertible top is operated. When
starting the motor using the start/stop button
or through the Auto Start Stop function, the
roof movement is briefly interrupted.
▷ Closing of the convertible top is interrupted
when a door is opened.
▷ To save battery power, move the convertible
top only when the engine is running.
▷ Before opening the convertible top, remove
any objects stored in its compartment.
▷ Before closing the convertible top, remove
any foreign objects from the windscreen
frame, otherwise they may prevent the top
from closing.
98
Opening and closing
Safety notes
Parts of the body can become trapped when
opening and closing the convertible top. There
is a danger of injury. When opening and closing
the convertible top, observe its movement and
keep the area of movement clear.
When operating the convertible top during the
journey, the rear view may be obstructed. The
convertible top stops in its current position
when the vehicle speed exceeds above
50 km/h, approximately 30 mph. There is a
danger of accidents and damage to property.
When operating the convertible top during the
journey, pay close attention to traffic conditions
and reduce speed if necessary. Do not operate
while driving in reverse or in windy conditions.
The convertible top is not suitable for installing
roof rack systems. The roof rack system could
become loose. There is a danger of accidents.
Do not install any roof rack systems on the
convertible top.
If the convertible top is not fully open or closed,
it will not be locked and consequently it may
come open of its own accord as a result of the
airstream. There is a danger of injury or dam‐
age to property. Make sure that the convertible
top is fully opened or closed.
Online Edition for Part no. xxx - X/18
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