2006 BMW 323i flat tire

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Malfunction in driving stability control
systems
The warning lamps come on. DSC
including DTC and DBC is malfunc-
tioning.
The vehicle remains operational.
Have the system checked as soon as possible.
Drive cautiously and think well ahead,
otherwise unstable driving conditions
could result.<
323i*, 325i, 330i
The warning lamps for the brake sys-
tem come on in red, together with the
yellow indicator lamps for driving sta-
bility control systems and FTM:
The driving stability control systems
and the Flat Tire Monitor have failed.
All warning lamps come on in yellow:
The driving stability control systems and the
Flat Tire Monitor have failed. The electronic
brake-force distribution is still active.
Have the system checked as soon as possible.
Drive cautiously, think well ahead and
avoid full brake applications, otherwise
accidents could result.<
Display
* of this malfunction on Cana-
dian models.
Display
* of this malfunction on Cana-
dian models.
With xDrive 325xi, 330xi
If one of the malfunctions described
below occurs, drive cautiously and think
well ahead. Also avoid situations that require full
braking, otherwise accidents could result.
Avoid driving on rough tracks and pressing the
accelerator pedal down to full throttle or kick-
down position, otherwise the drive system
could be damaged. tem come on in red, together with the
yellow indicator lamps for driving sta-
bility control systems and FTM:
The driving stability control systems
and the Flat Tire Monitor have failed.
All warning lamps come on in yellow:
The driving stability control systems and the
Flat Tire Monitor have failed. The electronic
brake-force distribution is still active.
Have the system checked as soon as possible.
Display
* of this malfunction on Cana-
dian models.
Display
* of this malfunction on Cana-
dian models.
Drive-off assistant
The drive-off assistant enables you to drive off
smoothly on uphill gradients. It is not necessary
to use the handbrake for this.
1.Hold the car in place by depressing the
brake.
2.Release the brake and drive off without
delay.
The drive-off assistant holds the car in
place for approx. 2 seconds after the
brake is released. Depending on vehicle load,
the car may roll backwards a little during this
time span. Drive off without delay after releas-
ing the brake. Otherwise, the drive-off assistant
will no longer hold the car in place after approx.
2 seconds and the car will start to roll back-
wards.<

Technology for driving comfort and safety
88
Malfunction
The warning lamps for the brake sys-
tem light up in yellow. The drive-off
assistant has failed. The car will not
be held in place after the brake is
released. Have the system checked as soon as
possible.
Canadian models display these warn-
ing lamps.
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.
If a tire loses pressure, its rolling radius
changes, and this in turn alters the speed of
rotation. This change is detected and is
reported as a flat tire.
Functional requirement
In order to assure the reliable reporting of a flat
tire, the system must be initialized for the cor-
rect tire inflation pressure.
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.<
In the following situations, the system could be
delayed or malfunction:
>System has not been initialized
>Driving on snowy or slippery road surface
>Performance-oriented style of driving: slip
in the drive wheels, high lateral acceleration>If snow chains are attached
Initializing the system
The initialization is completed during driv-
ing, which can be interrupted at any time.
When driving resumes, the initialization is con-
tinued automatically.
Do not initialize the system while snow chains
are attached.<
iDrive concept, refer to page16.
1.Press the button.
This opens the start menu.
2.Press the controller to open the menu.
3.Select "Vehicle settings" and press the
controller.
4.If necessary, move the highlight marker to
the uppermost field. Turn the controller
until "FTM" is selected and press the con-
troller.
5.Start the engine, but do not start driving.
6.Select "Set tire pressure" and press the
controller.
7.Select "Yes" and press the controller.
8.Start to drive.
"Status: FTM active" reappears in the Con-

Controls
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trol Display. Initialization is then completed
while the car is in motion.
Indication of a flat tire
The warning lamps come on in yellow
and red. A message appears on the
Control Display. In addition, an
acoustic signal sounds. There is a flat
tire or substantial loss of tire pressure.
1.Cautiously reduce speed to below 50 mph
or 80 km/h. Avoid sudden braking and
steering maneuvers. Do not exceed a speed
of 50 mph or 80 km/h.
If the car is not equipped with Run-
Flat Tires, refer to page196, the stan-
dard equipment by design, do not continue
driving. Otherwise a severe accident could
result after a tire puncture.<
2.At the next opportunity, check the air pres-
sure in all four tires.
If all four tires are inflated to the cor-
rect pressures, the Flat Tire Monitor
might not have been initialized. The system
must then be initialized.<
3.In the event of complete tire pressure loss,
0 psi/0 kPa, you can estimate the possible
distance for continued driving on the basis
of the following guidelines:
>With a light load:
1 to 2 persons without luggage:
approx. 155 miles/250 km
>With a medium load:
2 persons, luggage compartment full, or
4 persons without luggage:
approx. 90 miles/150 km
>With a full load:
4 or more persons, luggage compart-
ment full:
approx. 30 miles/50 km
Drive cautiously and do not exceed a
speed of 50 mph or 80 km/h. In the event
of pressure loss, vehicle handling changes. This
includes reduced tracking stability in braking,
extended braking distance and altered natural
steering characteristics.
If unusual vibration or loud noises occur during the journey, this may be an indication that the
damaged tire has finally failed. Reduce your
speed and pull over to the side of the road at the
earliest opportunity. Otherwise, parts of the tire
could come loose and cause an accident. Do
not continue driving. Contact your BMW Cen-
ter.<
Malfunction
The warning lamps come on in yel-
low. A message appears on the Con-
trol Display. The Flat Tire Monitor has
a malfunction or has failed. Have the
system checked as soon as possible.
Active steering*
The concept
Active steering varies the turning angle of the
front wheels in relation to steering wheel move-
ments. It also varies the steering force required
to turn the wheels depending on the speed at
which you are driving.
When you are driving in the low road-speed
range, e.g. in a town or when parking, the steer-
ing angle increases, i.e. the steering becomes
very direct, and less effort is required to turn the
wheels. In the higher speed range, on the other
hand, the steering angle is reduced more and
more. This improves the handling capability of
your BMW over the entire speed range.
In critical situations, the system can make tar-
geted corrections to the steering angle pro-
vided by the driver and thus stabilize the vehicle
before the driver intervenes. This stabilizing
intervention is simultaneously deactivated
when DSC is switched off, refer to page85.
Malfunction
The warning lamps come on. Active
steering is no longer operational. At
low speeds, greater steering wheel
movements are required, whereas at
higher speeds the vehicle reacts more sensi-
tively to steering wheel movements. Drive cau-

Wheels and tires
188
Wheels and tires
Tire inflation pressures
Information for your safety
It is not merely the tires' service life, but also
driving comfort and, to a great extent, driving
safety that depend on the condition of the tires
and the maintenance of the specified tire pres-
sure.
Check the tire inflation pressure regularly
and correct it, if necessary: at least twice a
month and before starting long trips. If you fail
to observe this precaution you may be driving
on tires with incorrect tire pressures, a condi-
tion that can not only compromise your vehi-
cle's driving stability, but also lead to tire dam-
age and the risk of an accident. Do not drive
with deflated, i.e. flat tires, except when using
Run-Flat Tires. A flat tire will seriously impair
your vehicle's handling and braking response.
Attempts to drive on a flat tire can lead to loss of
control over the vehicle.<
Checking pressure
Only check tire inflation pressure when the
tires are cold. This means after a maximum of
1.25 miles/2 km driving or when the vehicle has
been parked for at least 2 hours. When tires are
warm, the tire inflation pressure is higher.
After correcting tire inflation pressures,
always reinitialize the Flat Tire Monitor,
refer to page88.<
Inflation pressure specifications
The tables below provide all the correct inflation
pressures for the specified tire sizes at ambient
temperature.
The inflation pressures apply to the tire
sizes approved and tire brands recom-
mended by BMW; a list of these is available
from your BMW Center.<
For correct identification of the right tire infla-
tion pressures, observe the following:
>Tire sizes for your vehicle>Load conditions
>Maximum allowable driving speed
Tire inflation pressures for driving up to
100 mph or 160 km/h
For normal driving up to 100 mph or 160 km/h
and to achieve optimum driving comfort, adjust
pressures to the respective tire inflation pres-
sures listed on the following pages in the col-
umns for traveling speeds up to a maximum of
100mph or 160km/h.
These tire inflation pressures can also be found
on the driver's-side door post when the driver's
door is open.
The maximum permissible speed for
these tire pressures is 100 mph or
160 km/h. Do not exceed this speed, otherwise
tire damage and accidents could occur.<
Tire inflation pressures for driving
above 100 mph or 160 km/h
In order to drive at maximum speeds in
excess of 100 mph or 160 km/h, adjust
pressures to the respective tire inflation pres-
sures listed on the following pages in the col-
umns for traveling speeds including those
exceeding 100 mph or 160 km/h. Otherwise tire
damage and accidents could occur.<
Observe all national and local maximum speed
limits, otherwise violations of the laws could
occur.

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Tire inflation pressures for the 323i, for Canada only
Tire size Pressure specifications in psi/kPa
Traveling speeds
up to a max. of
100 mph / 160 km/hTraveling speeds
including those exceeding
100mph / 160km/h
All pressure specifications in
the table are indicated in
psi/kilopascal with cold tires.
Cold = ambient temperature
without Sports package
225/50 R 16 92 V
225/50 R 16 92 H M+S
205/55 R 16 91 H M+S
225/45 R 17 91 H M+S29/200 33/230 29/200 33/230 30/210 38/260
225/45 R 17 94 V M+S XL 29/200 35/240 29/200 35/240 32/220 39/270
Front: 225/35 R 19 88 Y XL 35/240 - 30/210 - 35/240 -
Rear: 255/30 R 19 91 Y XL - 39/270 - 33/230 - 39/270
with Sports package
225/50 R 16 92 V
225/50 R 16 92 H M+S
205/55 R 16 91 H M+S
225/45 R 17 91 H M+S29/200 33/230 29/200 35/240 35/240 42/290
225/45 R 17 94 V M+S XL 29/200 35/240 30/210 38/260 36/250 45/310
Front: 225/35 R 19 88 Y XL 35/240 - 33/230 - 38/260 -
Rear: 255/30 R 19 91 Y_XL - 39/270 - 36/250 - 42/290
More details on the permissible load and weights can be found on page220.

Wheels and tires
190
Tire inflation pressures for the 325i
Tire size Pressure specifications in psi/kPa
Traveling speeds
up to a max. of
100mph / 160km/hTraveling speeds
including those exceeding
100 mph / 160 km/h
All pressure specifications in
the table are indicated in
psi/kilopascal with cold tires.
Cold = ambient temperature
without Sports package
225/50 R 16 92 H M+S
205/55 R 16 91 H M+S
225/45 R 17 91 H M+S
225/45 R 17 94 V M+S XL33/230 41/280 - - 33/230 41/280
Front: 225/45 R 17 91 V 29/200 - 29/200 - 32/220 -
Rear: 255/40 R 17 94 V - 32/220 - 32/220 - 35/240
Front: 225/35 R 19 88 Y XL 35/240 - 32/220 - 35/240 -
Rear: 255/30 R 19 91 Y XL - 41/280 - 35/240 - 41/280
with Sports package
225/50 R 16 92 H M+S
225/45 R 17 91 H M+S
205/55 R 16 91 H M+S33/230 41/280 - - 35/240 42/290
225/45 R 17 94 V M+S XL 33/230 41/280 - - 38/260 45/310
Front: 225/45 R 17 91 V 29/200 - 29/200 - 35/240 -
Rear: 255/40 R 17 94 V - 32/220 - 33/230 - 39/270
Front: 225/35 R 19 88 Y XL 35/240 - 33/230 - 38/260 -
Rear: 255/30 R 19 91 Y XL - 41/280 - 36/250 - 42/290
More details on the permissible load and weights can be found on page220.

Mobility
191Reference
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Tire inflation pressures for the 325xi
Tire size Pressure specifications in psi/kPa
Traveling speeds
up to a max. of
100 mph / 160 km/hTraveling speeds
including those exceeding
100mph / 160km/h
All pressure specifications in
the table are indicated in
psi/kilopascal with cold tires.
Cold = ambient temperature
without Sports package:
205/55 R 16 91 H M+S
225/45 R 17 91 H M+S
225/50 R 16 92 H M+S
225/45 R 17 94 V M+S XL30/210 36/250 30/210 33/230 35/240 41/280
Front: 225/45 R 17 91 V 30/210 - 30/210 - 35/240 -
Rear: 255/40 R 17 94 V - 32/220 32/220 - 35/240
Front: 225/35 R 19 88 Y XL 39/270 - 35/240 - 39/270 -
Rear: 255/30 R 19 91 Y XL - 41/280 - 35/240 - 41/280
with Sports package:
205/55 R 16 91 H M+S
225/50 R 16 92 H M+S
225/45 R 17 91 H M+S30/210 36/250 30/210 33/230 35/240 41/280
225/45 R 17 94 V M+S XL 30/210 36/250 35/240 38/260 39/270 45/310
Front: 225/45 R 17 91 V 30/210 - 33/230 - 38/260 -
Rear: 255/40 R 17 94 V - 32/220 - 33/230 - 39/270
Front: 225/35 R 19 88 Y XL 39/270 - 38/260 - 42/290 -
Rear: 255/30 R 19 91 Y XL - 41/280 - 38/260 - 44/300
More details on the permissible load and weights can be found on page220.

Wheels and tires
192
Tire inflation pressures for the 330i
Tire size Pressure specifications in psi/kPa
Traveling speeds
up to a max. of
100mph / 160km/hTraveling speeds
including those exceeding
100 mph / 160 km/h
All pressure specifications in
the table are indicated in
psi/kilopascal with cold tires.
Cold = ambient temperature
without Sports package:
225/45 R 17 91 H M+S
225/45 R 17 94 V M+S XL33/230 41/280 - - 33/230 41/280
Front: 225/45 R 17 91 V 29/200 - 29/200 - 33/230 -
Rear: 255/40 R 17 94 V - 32/220 - 32/220 - 36/250
Front: 225/40 R 18 88 W 32/220 - 32/220 - 36/250 -
Rear: 255/35 R 18 90 W - 36/250 - 36/250 - 41/280
Front: 225/40 R 18 88 Y - - 29/200 - 30/210 -
Rear: 255/35 R 18 90 Y - - - 32/220 - 36/250
Front: 225/35 R 19 88 Y XL 36/250 - 32/220 - 36/250 -
Rear: 255/30 R 19 91 Y XL - 41/280 - 36/250 - 41/280
with Sports package:
225/45 R 17 91 H M+S
225/45 R 17 94 V M+S XL33/230 41/280 - - 38/260 45/310
Front: 225/45 R 17 91 V 29/200 - 32/220 - 38/260 -
Rear: 255/40 R 17 94 V - 32/220 - 35/240 - 41/280
Front: 225/40 R 18 88 W 32/220 - 35/240 - 38/260 -
Rear: 255/35 R 18 90 W - 36/250 - 38/260 - 45/310
Front: 225/40 R 18 88 Y - - 30/210 - 33/230 -
Rear: 255/35 R 18 90 Y - - - 33/230 - 39/270
Front: 225/35 R 19 88 Y XL 36/250 - 35/240 - 38/260
Rear: 255/30 R 19 91 Y XL - 41/280 - 38/260 - 45/310
More details on the permissible load and weights can be found on page220.