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EnglishControls and features -> Tire Pressure Control (RDC) for your BMW 7 Series 2001-2007
98nTire Pressure Control (RDC)*
The concept
Loss of tire pressure
RDC monitors the tire pressures at all
four wheels, even when the vehicle is
moving. The system provides an alert
whenever the inflation pressure drops
significantly below the specified pres-
sure in one or more tires.
If, after a certain period of time, the air
pressure has gone down significantly
(which is normal for any tire), the mes-
sage "CHECK TIRE PRESSURE" ap-
pears in the Check Control.
This alerts you that you should have the
tires inflated to the specified pressures
as soon as possible.
In order for the RDC to "learn" the cor-
rect tire inflation pressure, check the in-
flation pressure in all tires. Refer to the
table of "Tire inflation pressures" on
page 29 and make corrections if neces-
If you are prompted to check the
tire pressure shortly after a cor-
Activate the system
sary. Then activate the system.
rection has been made, this indicates
that the corrected values were not ac-
curate. Please check the inflation pres-
sure again and make corrections ac-
cording to the inflation pressure table.<
1 Turn the ignition key to position 2
(do not start the engine)
The Check Control will inform you if the
tire pressure is not correct.
2 Press and hold the button (arrow) un-
til the message "SET TIRE PRES-
SURE" appears in the Check Control
3 After you have driven for a few min-
utes, the RDC will import the current
inflation pressure in the tires as the
target values which the system will
monitor.
You will only have to repeat this proce-
dure if the tire inflation pressure must
be corrected. Otherwise, the RDC func-
tions automatically when the ignition
key is in position 2, and thus operates
whenever the vehicle is driven.
Online Edition for Part No. 01 41 0 004 597 - © 08/99 BMW Group
Tire Pressure Control (RDC)*
99n
The RDC cannot alert you to se-
vere and sudden tire damage
caused by external factors.<
Flat tire
System interference
If there is a tire failure with a loss of air
During the period of the malfunction,
the message "TIRE CONTROL INAC-
TIVE" appears in the Check Control.
pressure, the message "TIRE DEFECT"
appears in the Check Control. In addi-
tion, a gong sounds.
Have the tires changed by your
BMW center.
You will also see the same message
If this occurs, reduce vehicle speed im-
mediately and stop the vehicle in a safe
location. Avoid hard brake applications.
Do not oversteer. Replace the wheel
and flat tire.
> in the event of a system fault
> if a wheel is mounted without the
RDC electronics
Your BMW center has been trained to
work with the RDC system and is
equipped with the necessary special
tools to do so.<
> if, in addition to the spare tire, addi-
tional wheels with RDC electronics
are on board.
The spare tire which is available in
your vehicle as standard equip-
ment is equipped with the electronics
required for RDC and, following activa-
tion of the system, is also monitored af-
ter it is mounted.<
Please contact your BMW center for
additional information.
Online Edition for Part No. 01 41 0 004 597 - © 08/99 BMW Group
