Flat tire monitor, Dynamic stability control (dsc) – BMW M3 Coupe 2004 User Manual

Page 84

To deactivate DSC

Press the button briefly; the indicator
lamp comes on and stays on.

The vehicle does not execute the stabil-
ity-enhancement and traction-control
functions when DSC is deactivated.

We recommend that you deactivate
DSC for increased traction:
> When rocking the vehicle or starting

off in deep snow or on loose surfaces

> When driving with snow chains

> When driving on snow-covered

grades, in deep snow, or on a snow-
covered surface that has been
packed down from being driven on.

To maintain vehicle stability,
always drive with the DSC acti-

vated on whenever possible.

To reactivate DSC

Press the button again; the indicator
lamp goes out.

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 sig-
nificantly below the pressure of another
tire.

Controlling the tire pressure is based
on monitoring the rpm that the tires
have relative to each other. A flat tire is
detected and reported because the rpm
suddenly deviate drastically from one
another.

Functional 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 them with the tire inflation

pressure table on page

and cor-

rect them, if necessary

3. Initialize the system.

Dynamic Stability Control (DSC)