BMW 2006 Z4 Coupe Manual Do Proprietário

Malfunction

The warning lamp for the brake system
lights up in yellow. The drive-off assis-
tant has failed. The car will not be held

in place after the brake is released. Have the
system checked as soon as possible.

Flat Tire Monitor FTM

The concept

The Flat Tire Monitor monitors tire pressures
while the car is being driven. The system
reports any significant loss of pressure in one
tire in relation to another.
In the event of tire pressure loss, the rolling
radius of the tire changes, thereby affecting the
rotational speed of the wheels. This change is
detected, and a flat tire warning is issued to the
driver.

System requirements

To ensure a reliable flat tire warning, the system
must be initialized with the correct tire inflation
pressures.

The system must be reinitialized each
time a tire inflation pressure has been cor-

rected or a wheel or tire has been changed.

System limitations

The Flat Tire Monitor is unable to warn
the driver of sudden, severe tire damage

caused by external factors, nor can it identify
the gradual loss of pressure that will inevitably
occur in all four tires over a lengthy period of
time.

The system could issue a false warning or func-
tion in a delayed manner in the following situa-
tions:

System was not initialized

Driving on a snow-covered or slippery road
surface

Performance-oriented driving: slip at the
drive wheels, high levels of lateral accelera-
tion

Driving with snow chains attached

Initializing the system

The initialization is completed while you
are driving, and can be interrupted at any

time. Initialization is continued automatically
when you continue driving.
When driving with snow chains, do not initialize
the system.

Start the engine immediately before pulling
away, but do not drive off yet.

Press the button until the yellow indicator
lamp in the instrument cluster lights up for a
few seconds.

Drive off.
Initialization is completed during the drive,
without any feedback issued.

Flat tire warning

The warning lamp in the instrument
cluster lights up in red. A signal also
sounds. There is a flat tire or a signifi-

cant loss of tire pressure.

Cautiously reduce speed to 50 mph/
80 km/h or lower. Avoid strong braking and
steering maneuvers. Do not exceed a maxi-
mum speed of 50 mph/80 km/h.

If the car is not equipped with Run-
Flat Tires, refer to page

, the stan-

dard equipment by design, do not continue
driving. Otherwise a severe accident could
result after a tire puncture.

At the next opportunity, check the air pres-
sure in all four tires.

If the inflation pressure is correct in all
four tires, it is possible that the Flat

Tire Monitor was not initialized. In this case,
initialize the system.