BMW Z4 Roadster 2.5i 2004 - Manual (Page 56)

Technology for safety and driving convenience
54
The display has two levels:
> Normal braking:
Brake lamp 1 lights up on both sides of
the vehicle together with the center
brake lamp
> Forceful braking and braking with ABS:
Brake lamps 1 and 2 light up on both
vehicle sides together with the center
brake lamp.
Antilock Brake System ABS
The concept
ABS keeps the wheels from locking during
braking, thereby enhancing active driving
safety.
Malfunctions
If the yellow indicator lamp for the
Antilock Brake System ABS comes
on together with the brake warning
lamp and the indicator lamp for the
Dynamic Stability Control DSC:
The entire ABS and DSC control
system has failed. Continue driving
cautiously and defensively. Avoid
hard brake applications. Please have the
system checked by your BMW center as
soon as possible.
Indicator lamp for the Antilock
Brake System ABS with the brake
warning lamp and the indicator
lamp for the Dynamic Stability Con-
trol DSC for Canadian models.
Braking with ABS
If you are in a situation which requires full
braking, you will exploit the full benefits of
the ABS system if you apply maximum
brake pressure: panic stop.
Pulsation at the brake pedal combines with
sounds from the hydraulic circuits to indi-
cate to the driver that ABS is in its active
mode.
Flat Tire Monitor
The concept
As you drive, the Flat Tire Monitor keeps
track of pressure levels in all four tires. The
system alerts you whenever the inflation
pressure of a tire falls significantly below
the pressure of another tire.
The system actually detects pressure loss
by monitoring differences in the relative
speeds of the four wheels. It interprets vari-
ations outside specified limits as severe
pressure loss, and then responds by gen-
erating a warning.
System requirements
In order for the Flat Tire Monitor to learn the
correct tire inflation pressure, please do the
following:
1. Check the tire inflation pressures in all
tires
2. Compare to the inflation pressure table,
refer to page
76 , and correct if neces-
sary
3. Initialize the system.
If the system is not initialized,
undetected losses in pressure or
false warnings that indicate a non-exis-
tent flat tire are possible.
<
System limitations
The Flat Tire Monitor cannot provide
you with advance warning of sudden
and severe tire damage caused by external
factors and does not detect the balanced
and very gradual pressure loss that takes
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