2005 BMW 330I SEDAN flat tire

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DTC Dynamic Traction Control
DTC is a version of DSC in which the drive out-
put is optimized for particular road conditions,
e.g. unplowed snow-covered roads. The sys-
tem assures the maximal drive output, but with
reduced driving stability. It is therefore neces-
sary to drive with appropriate caution.
You may find it useful to briefly activate DTC
under the following special circumstances:
>When driving uphill on snow-covered roads,
in slush or on unplowed, snow-covered
roads
>When rocking a stuck vehicle free or start-
ing off in deep snow or on loose ground
>When driving with snow chains
Activating DTC
Briefly press the button; the DTC indicator
lamps in the instrument cluster come on.
Deactivating DTC again
Press the button again; the DTC indicator
lamps in the instrument cluster go out.
Deactivating DTC and DSC together
Press the button and hold it down for at least
3 seconds; the DSC indicator lamps in the instrument cluster light up. Stabilizing and
drive-output promoting actions are no longer
executed.
To increase vehicle stability, activate DSC again
as soon as possible.
Reactivating DSC
Briefly press the button; the indicator lamps in
the instrument cluster go out.
To control
If the indicator lamp flashes:
DSC or DTC controls the drive forces
and brake forces.
If the indicator lamps are on:
Both DTC and DSC have been deac-
tivated with the DTC button.
If the indicator lamps are on:
DTC has been activated with the DTC
button.
Malfunction in driving stability control
systems
These warning lamps come on:
The driving stability control systems
and the Flat Tire Monitor have failed.
Proceed cautiously and drive defen-
sively, avoiding full brake applica-
tions. Have the system checked as
soon as possible.
Display
* of this malfunction on Cana-
dian models.
Display
* of this malfunction on Cana-
dian models.

Technology for driving comfort and safety
80 If the warning lamps for DSC come
on. DSC including DTC and DBC is
malfunctioning.
The stabilizing action and brake-
servo boost are no longer available. The vehicle
remains operational. Have the system checked
as soon as possible.
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 pressing the brake
pedal.
2.Release the brake pedal and drive off with-
out delay.
The drive-off assistant holds the car in
place for approx. 2 seconds after the
brake pedal is released. Depending on vehicle
load, the car may roll backwards a little during
this time span. Drive off without delay after
releasing the brake pedal. Otherwise, the drive-
off assistant will no longer hold the car in place
after approx. 2 seconds and the car will start to
roll backwards.<
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 pedal
is released. Have the system checked as soon
as possible.
Display of this malfunction on Cana-
dian models.
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.

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4.Select "FTM" and press the controller.
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: Active" reappears in the Control
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 page178, the stan-
dard equipment by design, do not continue
driving. Any attempt to drive on after a
puncture can result in a severe accident.<
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 reservedly 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-

Wheels and tires
170
Wheels and tires
Tire inflation pressure
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 page80.<
Inflation pressure specifications for
factory-installed tires
The inflation pressures for your factory-
installed tires at ambient temperature can be
found on the door post when you open the
driver's door.
Inflation pressure specifications for
other tire sizes
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
adjust pressures to the respective tire inflation
pressures listed on the following pages in the
traveling speeds column for normal driving at
speeds up to a maximum of 100 mph or
160 km/h to achieve optimum driving comfort.
The maximum permissible speed for
these tire pressures is 100 mph or

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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, please
observe, and, if necessary, adjust tire pressures
for speeds exceeding 100 mph or 160 km/h
from the relevant table on the following pages.
Otherwise tire damage and accidents could oc-
cur.<
Observe all national and local maximum speed
limits, otherwise violations of the laws could
occur.

Wheels and tires
172
Tire inflation pressures for 325i without Sports package
Tire size Pressure specifications in psi/kPa
Traveling speeds
up to a max. of
100 mph / 160 km/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
225/50 R 16 92 V
205/55 R 16 91 H M+S
225/45 R 17 91 H M+S
225/45 R 17 94 V M+S XL29/200 35/240 29/200 35/240 32/220 39/270
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: 225/40 R 18 88 W 32/220 - 29/200 - 32/220 -
Rear: 255/35 R 18 90 W - 35/240 35/240 - 39/270
Front: 225/35 R 19 88 Y XL 35/240 - 32/220 - 35/240
Rear: 255/30 R 19 91 Y XL - 39/270 - 35/240 39/270
More details on the permissible load and weights can be found on page201.

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Tire inflation pressures for 325i with Sports package*
Tire size Pressure specifications in psi/kPa
Traveling speeds
up to a max. of
100 mph / 160 km/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
225/50 R 16 92 V
225/45 R 17 94 V M+S XL29/200 35/240 29/200 36/250 35/240 42/290
205/55 R 16 91 H M+S
225/45 R 17 91 H M+S29/200 35/240 29/200 35/240 32/220 39/270
Front: 225/45 R 17 91 V 29/200 - 29/200 - 35/240 -
Rear: 255/40 R 17 94 V - 32/220 - 33/230 - 38/260
Front: 225/40 R 18 88 W 32/220 - 33/230 - 38/260 -
Rear: 255/35 R 18 90 W - 35/240 36/250 - 42/290
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 page201.

Wheels and tires
174
Tire inflation pressures for 330i without Sports package
Tire size Pressure specifications in psi/kPa
Traveling speeds
up to a max. of
100 mph / 160 km/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
225/45 R 17 91 H M+S
225/45 R 17 94 V M+S XL29/200 36/250 29/200 36/250 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: 225/35 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
More details on the permissible load and weights can be found on page201.