BMW Z4 Roadster Owner's Handbook Manual page 254

DRIVING HINTS
Radio signals
WARNING
Certain vehicle functions may be affected by in‐
terference from high-frequency radio signals.
Such signals originate from various transmitter
systems, for example, from air traffic beacons
or relay stations for mobile telecommunica‐
tions.
We recommend you consult a Service Partner
should you experience any difficulties in this re‐
gard.
Mobile communication in the
vehicle
WARNING
There is a possibility of reciprocal interference
between the vehicle electronics and mobile
radio devices. Radiation is generated when mo‐
bile radio devices are transmitting. There is a
danger of injury or damage to property. If possi‐
ble, only use mobile radio devices, for example
mobile telephones, in the interior if they are
connected directly to an external antenna in or‐
der to eliminate reciprocal interference and to
dissipate the radiation from vehicle's interior.
Aquaplaning
On wet or slushy roads, a wedge of water can
form between the tyres and the road.
This situation, known as aquaplaning, means that
the tyre can actually lose contact completely with
the road surface and the vehicle can neither be
steered, nor the brakes properly applied.
Driving through water
General
Please comply with the following when driving
through water:
254
Driving precautions
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Safety note
Driving through excessively deep water too fast
can result in water entering the engine com‐
partment, electrical system or transmission.
There is a danger of damage to property. When
driving through water, do not exceed the maxi‐
mum water depth and speed specified above.
Safe braking
General
The vehicle is equipped with the Anti-lock Brake
System ABS as standard.
Perform full braking in situations that require it.
The vehicle remains steerable. Any obstacles
can be avoided by performing steering move‐
ments as smoothly as possible.
A pulsing of the brake pedal and hydraulic regu‐
lating sounds indicate that the Anti-lock Brake
System ABS is regulating.
In certain braking situations, the perforated brake
discs can cause functional noise. However, func‐
tional noises have no effect on the efficiency and
operational safety of the brakes.
Objects in the range of movement of
the pedals
Objects in the driver's footwell can restrict the
pedal travel or block a pedal that has been
pressed. There is a danger of accidents. Stow
items in the vehicle so that they are secure and
cannot get into the driver's footwell. Only use
Online Edition for Part no. xxx - X/18
Only drive through still water.
Only drive through water up to a max. depth
of 25 cm, 9.8 in.
Drive through water at a walking speed of no
more than 5 km/h, 3 mph.
NOTE
WARNING