BMW Z4 sDrive30i Owner's Manual page 73

4. Press button 2 for approx. 5 seconds until
the display appears:
5. Drive away.
Initialization is completed while the car is on
the move without providing feedback.
Indication of a flat tire
The warning lamps come on in yellow
and red. In addition, a signal sounds.
There is a flat tire or a major loss in tire
inflation pressure.
1. Carefully reduce your speed to a maximum
of 50 mph/80 km/h.
Avoid sudden braking and steering maneu‐
vers. Do not increase the speed again.
Do not continue driving without run-
flat tires
Do not continue driving if the vehicle is not
equipped with run-flat tires; continued driv‐
ing may result in serious accidents.◀
2. Check the air pressure in all four tires at the
next opportunity.
If the tire inflation pressure in all tires is cor‐
rect, the Flat Tire Monitor may not have been
initialized. In this case, initialize the system.
Continued driving with a flat tire
Possible driving distance with complete loss of
tire inflation pressure:
▷ With a light load: 1 person without luggage:
approx. 155 miles/250 km.
▷ With a medium load: 1 person, trunk full, or
2 people without luggage: approx. 94 miles/
150 km.
Online Edition for Part no. 01 41 2 604 213 - 03 10 500
▷ With a full load: 2 people, trunk full: approx.
30 miles/50 km.
If there is minor tire damage, especially on the
tire tread, the distance that you can travel with
the damaged tire can be extended.
After notification, inflate the damaged tire to a
maximum of 43 psi/3.5 bar at the next opportu‐
nity.
Do not reinitialize the Flat Tire Monitor. The ex‐
isting flat tire notification will continue to act as
a reminder of the defective tire. The procedure
can be repeated several times.
Continued driving with a flat tire
Drive moderately and do not exceed a
speed of 50 mph/80 km/h.
A loss of tire inflation pressure results in a
change in the handling characteristics, e.g., re‐
duced lane stability during braking, a longer
braking distance and altered self-steering prop‐
erties.◀
Final tire failure
Vibrations or loud noises while driving can
indicate the final failure of the tire. Reduce speed
and stop; otherwise, pieces of the tire could
come loose and cause an accident. Do not con‐
tinue driving, and contact your service center.◀
Tire Pressure Monitor TPM*
The concept
TPM checks the inflation pressures of the four
mounted tires. The system notifies you if there
is a significant loss of pressure in one or more
tires.
Functional requirement
In order to assure the reliable reporting of a flat
tire, the system must be reset while all tire infla‐
tion pressures are correct.
Always use wheels with TPM electronics. Oth‐
erwise, the system may malfunction.
Reset the system after each correction of the
tire inflation pressure and after every tire or
wheel change.
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