Controls and features -> Technology: DSC, Dynamic Performance, Tire Monitor for Your BMW Z8 Roadster First Generation (2000-2003)

Dynamic Stability Control (DSC)  
65n  
The concept  
Indicator lamp  
DSC maintains vehicle stability even in  
critical driving situations.  
The indicator lamp in the instru-  
ment cluster goes out shortly  
after you switch on the ignition.  
DSC maintains optimal, predictable  
response while maximizing traction  
when you accelerate from a standing  
start or speed up while already  
Refer to page 22.  
The indicator lamp flashes:  
The system is actively regulating drive  
torque and braking force.  
underway. The system recognizes any  
tendency for the vehicle to assume an  
instable attitude such as oversteer and  
understeer, and counteracts this  
tendency with a combination of gradu-  
ated reductions in engine torque and  
braking intervention at individually  
selected wheels. DSC provides optimal  
stability – within the limits defined by  
the laws of physics.  
The indicator lamp does not go out  
after the engine is started, or it comes  
on during normal driving and stays on:  
There is a system malfunction or the  
system was deactivated with the  
button. You can continue to drive the  
vehicle normally, but without DSC.  
Please respond to any suspected  
defects by referring the problem to your  
BMW center.  
To deactivate the system  
Press the button, the indicator lamp  
comes on and stays on.  
When DSC is deactivated, you are  
operating the vehicle in the conven-  
tional drive mode.  
The system automatically assumes  
operational status each time the engine  
is started.  
In the following rare circumstances, it  
may be effective to deactivate the DSC  
for a short period of time:  
> When rocking the vehicle or starting  
off in deep snow or on loose  
surfaces.  
To maintain vehicle stability,  
always drive with the system  
switched on when possible.<  
66nDynamic Stability Control (DSC)  
Dynamic Performance  
To reactivate the system  
Press the button again; the indicator  
lamp goes out.  
Not even DSC can suspend the  
laws of physics. Responsibility for  
careless driving remains in the hands  
(and feet) of the driver. Never use the  
added safety provided by DSC as an  
excuse for taking unnecessary risks.  
Do not make any modifications to the  
DSC system. Service procedures on  
the system are to be performed by  
authorized technicians only.<  
The system reacts to current conditions  
with an instantaneous recalibration. It  
revises the accelerator's standard  
response designed to furnish an ideal  
combination of comfort and perfor-  
mance orientation – with a more perfor-  
mance-oriented response program. The  
result is crisper, faster reaction to  
throttle inputs (Sport mode).  
For additional information concerning  
DSC, please refer to the chapter  
"Advanced technology" on page 151.  
The system resets to the standard  
response mode, with its combination of  
comfort and performance orientation,  
each time the engine is restarted.  
Dynamic Performance  
Flat Tire Monitor  
67n  
Sport mode recognition  
The concept  
Activating:  
In ignition position 2, press the button.  
The indicator lamp will come on.  
The Flat Tire Monitor keeps track of the  
inflation pressures in all four wheels as  
you drive. The system provides an alert  
whenever the inflation pressure has  
dropped significantly in one of the tires.  
Deactivating:  
Whenever the indicator lamp is on, it  
will go out if you press the button again. To initialize the Flat Tire Monitor with  
the correct inflation pressures, start by  
ensuring that all of the vehicle's tires  
are inflated to the pressures specified  
in the inflation pressure table on  
page 27. Now you can activate the  
system.  
To activate the system  
1. Turn the ignition key to position 2  
The indicator lamp within the  
instrument cluster flashes to  
alert you to substantial pres-  
sure loss in any of the tires.  
2. Press the button long enough for the  
indicator lamp in the instrument  
cluster to light up red for a few  
seconds  
3. As you drive, the Flat Tire Monitor  
automatically enters the system  
initialization mode in which it stores  
the current pressures as its reference  
figures. The initialization process  
lasts for ten minutes or somewhat  
longer. Once it has been completed  
the Flat Tire Monitor is able to detect  
and warn of flat tires.  
68nFlat Tire Monitor  
Repeat this process after any changes  
in tire inflation pressure, tire rotation or  
replacement.  
Check tire pressure on a regular  
basis and correct it as required.  
System interference  
The red indicator lamp in the instrument  
cluster will stay on for as long as there  
is a malfunction.  
Refer to page 26.  
Do not reactivate the system after peri- Do not activate the system when driving  
odic corrections of inflation pressures  
to maintain them at the levels stored  
during an earlier initialization process.  
on snow chains or when operating the  
vehicle on a closed racing circuit. False  
alarms and undetected pressure loss  
are both possible under these condi-  
tions.  
The indicator lamp will come on if the  
system malfunctions.  
Please contact your BMW center for  
additional information.  
In the event of a flat tire  
In certain circumstances, there could  
be a delayed detection of any loss in  
inflation pressure while driving on  
snow-covered or slippery road  
surfaces.  
The red indicator lamp will flash in the  
event of a flat tire.  
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.  
Performance-oriented driving (slip at  
the drive wheels, high levels of lateral  
acceleration) can also delay the  
appearance of status reports in the Flat  
Tire Monitor's display panel.<  
For additional details, refer to  
page 137.  
The Flat Tire Monitor cannot alert  
you to severe and sudden tire  
damage caused by external factors.  
Another factor which the Flat Tire  
Monitor does not recognize is the  
balanced and very gradual pressure  
loss that takes place in all tires over an  
extended period of time.<