BMW Z8 2000, Owner'S Manual

Page: 66 / 172

65 n
Index
Data
Technology
Repairs
Car care
Controls
Overview
Tire Pressure Warning (RDW)
The concept
The RDW monitors the tire pressure in
all four wheels while driving. The sys-
tem provides an alert whenever the in-
flation pressure drops significantly in
one of the tires.
For RDW to "learn" the correct tire infla-
tion pressure, check the inflation pres-
sure in all tires, comparing them with
the values in the inflation pressure table
(refer to page
25 ), and make correc-
tions as necessary. Then activate the
system.
This indicator lamp in the instru-
ment cluster will flash to inform
you if the inflation pressure in
one of the tires has dropped signifi-
cantly.
To activate the system
1 Turn the ignition key to position 2
2 Press the switch long enough for the
indicator lamp in the instrument clus-
ter to light up red for a few seconds
3 The RDW undergoes an automatic
"learning" process while you are driv-
ing, and stores this data to aim for op-
timal conditions. This one-time "learn-
ing" process lasts at least 10 minutes,
after which the RDW is able to detect
and report any tire failure.
Repeat this process after any changes
in tire inflation pressure, tire rotation or
replacement.
Once the pressures have been adjusted
to the reference values used in the
"learning" process, do not activate the
system a further time.
520de117
Tire failure
The red indicator lamp will flash in the
event of a tire failure.
A supplementary gong is also heard.
Carefully reduce speed to less than
50 mph (80 km/h), avoiding any hard
braking or steering maneuvers while
doing so.
For additional details, refer to page 135 .
The RDW cannot alert you to
severe and sudden tire damage
caused by external factors.
Nor can it detect the gradual loss of
pressure at all four tires that normally
occurs over a period of time.
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