tire pressure reset BMW 128I COUPE 2008 E82 Owner's Manual

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83Reference
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assistant will no longer hold the car in place
after approx. 2 seconds and the car will start to
roll backwards.<
Flat Tire Monitor FTM*
The concept
The Flat Tire Monitor detects pressure loss in a
tire by comparing the rotating speeds of the
individual tires while moving.
In the event of pressure loss, the rolling circum-
ference changes and, thus, the rotating speed
of the affected wheel. 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
>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. 1.Press the button.
This opens the start menu.
2.Press the controller to open the menu.
3.Select "Settings" and press the controller.
4.Select "Vehicle / Tires" and press the con-
troller.
5.If necessary, move the highlight marker to
the uppermost field. Turn the controller
until "FTM" is selected and press the con-
troller.
6.Start the engine, but do not start driving.
7.Select "Reset" and press the controller.
8.Select "Yes" and press the controller.
9.Start to drive.
Initialization is completed while the car is on
the move, without any feedback.

Technology for driving comfort and safety
84
Indication of a flat tire
The warning lamps come on in yellow
and red. A message appears on the
Control Display. In addition, a signal
sounds. There is a flat tire or substan-
tial loss of tire pressure.
1.Cautiously reduce speed to below 50 mph/
80 km/h. Avoid sudden braking and steer-
ing maneuvers. Do not exceed a speed of
50 mph/80 km/h.
If the car is not equipped with Run-
Flat Tires, refer to page207, the stan-
dard equipment by design, do not continue
driving. A severe accident could result if you
continue driving 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 distance
for which you can continue 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, cargo bay full, or 4 persons
without luggage:
approx. 90 miles/150 km
>With a full load:
4 persons, cargo bay full:
approx. 30 miles/50 km
Drive cautiously and do not exceed a
speed of 50 mph/80 km/h, otherwise
there is a risk of an accident. 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 as soon as possible at a suitable location. Otherwise
parts of the tire could come loose, resulting
in an accident. Do not continue driving.
Instead, contact your BMW center.<
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.
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.
Each time a tire inflation pressure has
been corrected or a wheel or tire has been
changed, reset the system.<
System limitations
TPM cannot warn you in advance of sud-
den severe tire damage caused by out-
side influences.<
The system does not work correctly if it has not
been reset; for example, a flat tire may be indi-
cated even though the tire inflation pressures
are correct.
The system is inactive and cannot indicate a flat
tire if a wheel without TPM electronics, such as
a compact spare wheel, has been mounted, or if
TPM is temporarily malfunctioning due to other
systems or devices using the same radio fre-
quency.

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Status indicator on the Control Display
The color of the tires represents the status of
the tires and the system.
TPM takes into account that tire pressures
change while the vehicle is being driven. The
tire pressures do not need to be corrected
unless the TPM instructs you to do so by means
of color indicators.
Green
The tire inflation pressure corresponds to the
established target value.
"TPM active" appears on the Control Display.
One wheel yellow
There is a flat tire or substantial loss of tire pres-
sure in the indicated tire. A message appears on
the Control Display.
All wheels yellow
There is a flat tire or substantial loss of tire pres-
sure in several tires. A message appears on the
Control Display.
Gray
The system cannot detect a puncture.
Possible reasons for this:
>TPM is being reset
>Temporary malfunction caused by systems
or devices using the same radio frequency
>Malfunction
Resetting the system
Each time a tire inflation pressure has
been corrected or a wheel or tire has been
changed, reset the system.<
iDrive, for operating principle refer to page16.
1.Press the button
The start menu is called up.
2.Press the controller to open the menu.3.Select "Settings" and press the controller.
4.Select "Vehicle / Tires" and press the con-
troller.
5.If necessary, move the highlight marker to
the uppermost field. Turn the controller
until "TPM" is selected and press the con-
troller.
6.Start the engine, but do not start driving.
7.Select "Reset" and press the controller.
8.Select "Yes" and press the controller.
9.Start to drive.
The tires are shown in gray and "Resetting
TPM..." is displayed.
After driving a few minutes, the set inflation
pressures in the tires are accepted as the target
values to be monitored. The system reset is
completed during your drive, and can be inter-
will be adapted
will be adapted

Technology for driving comfort and safety
86 rupted at any time. When driving resumes, the
reset is continued automatically. On the Control
Display, the tires are shown in green and "Sta-
tus: TPM active" is displayed again.
If a flat tire is detected while the system is
resetting and determining the inflation
pressures, all tires on the Control Display are
displayed in yellow. The message "Tire low!" is
shown.<
Message for low tire inflation pressure
The warning lamps come on in yellow
and red. A message appears on the
Control Display. In addition, a signal
sounds. There is a flat tire or substan-
tial loss of tire pressure.
1.Cautiously reduce speed to below 50 mph/
80 km/h. Avoid sudden braking and steer-
ing maneuvers. Do not exceed a speed of
50 mph/80 km/h.
If the car is not equipped with Run-
Flat Tires, refer to page207, the stan-
dard equipment by design, do not continue
driving. Otherwise a severe accident could
result after a tire puncture if you continue
driving.<
2.In the event of complete 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, cargo bay full, or 4 persons
without luggage:
approx. 95 miles/150 km
>With a full load:
4 persons, cargo bay full:
approx. 30 miles/50 km
Drive cautiously and do not exceed a
speed of 50 mph/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 as soon as possible at a
suitable location. Otherwise parts of the tire
could come loose, resulting in an accident. Do
not continue driving. Instead, contact your
BMW center.<
Malfunction
The small warning lamp flashes in
yellow and then lights up continu-
ously; the larger warning lamp comes
on in yellow. On the Control Display,
the tires are shown in gray and a message
appears. No punctures can be detected.
This type of message is shown in the following
situations:
>If there is a malfunction
Have the system checked.
>If a wheel without TPM electronics has
been mounted
>If TPM is temporarily malfunctioning due to
other systems or devices using the same
radio frequency.
Message for unsuccessful system
reset
The warning lamp lights up yellow. A
message will appear on the Control
Display. The system is not reset after
a tire has been changed, for example.
Check the tire inflation pressure and reset the
system, refer to page85.
Declaration according to NHTSA/
FMVSS 138
Tire Pressure Monitoring Systems
Each tire should be checked monthly when cold
and inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure label. If
your vehicle has tires of a different size than the
size indicated on the vehicle placard or tire infla-
tion pressure label, you should determine the
proper tire inflation pressure for those tires. As
an added safety feature, your vehicle has been

Reference 249
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Controls
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Entertainment
Mobility
O
OBD socket, refer to Socket
for On-Board Diagnosis215
Octane ratings, refer to Fuel
specifications200
Odometer66
Oil, refer to Engine oil210
Oil consumption210
Oil level210
Old batteries, refer to
Disposal220
"On a new destination" in
navigation130
"Onboard info"68
Onboard tool kit216
"On destination"130
"On location"130
Opening and closing
– convenient access36
– from inside32
– from outside29
– using the door lock32
– via the remote control29
Operation by voice for mobile
phone187
– adjusting volume188
– canceling187
– correcting phone
number188
– dialing phone number188
– placing a call188
– redialing188
– voice commands187
– voice phone book188
"Options"195
Orientation menu, refer to
Start menu17
Outlets, refer to Ventilation99
Output, refer to Engine
data230
Outside temperature
display66
– changing unit of measure70
– on computer70
Outside temperature
warning66
Overriding selector lever
lock62
P
Park assistant, refer to Park
Distance Control80
Park Distance Control PDC80
"Parked car operation"100
"Parked car ventilation"100
Parked car ventilation100
– activating switch-on
time101
– preselecting switch-on
times100
– switching on and off
directly100
Parking
– vehicle59
Parking aid, refer to Park
Distance Control PDC80
Parking brake59
– indicator lamp60
Parking lamps/low beams91
– replacing bulbs217
Parts and accessories, refer to
The individual vehicle5
Passenger-side mirror tilt
function52
"Pathway lighting"92
Pathway lighting92
"PDC"80
Personal Profile28
"Perspective"138
Phone book181
Phone numbers
– deleting from phone
book185
– dialing183
– most recent numbers184
– selecting in phone book184
– Top 8184
Pinch protection system
– glass roof, electric40
– windows39
Placing a call, refer to
telephone owner's manual
"Play" for satellite radio161
Pollen, refer to Microfilter/
activated-charcoal filter100Position
– displaying144
– saving, refer to Storing
current position132
Power windows38
Power windows, refer to
Windows38
"Presets", displaying with the
radio154
"Presets" for satellite
radio161
Pressure, tires202
Pressure monitoring of tires,
refer to Flat Tire Monitor83
Pressure monitoring of tires,
refer to Tire Pressure
Monitor TPM
84
"Profile"197
Programmable buttons on the
steering wheel11
Programmable memory
keys21
Protection function, refer to
Pinch protection system
– glass roof, electric40
– windows39
Providing medical assistance,
refer to First add pouch223
Puncture
– Flat Tire Monitor83

Reference 253
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Temperature display
– outside temperature66
– outside temperature
warning66
– setting the units70
Tempomat, refer to Cruise
control64
"Terminate services"196
"Text language", refer to
Language of Control
Display79
"Theater" for Tone
control152
Thigh support46
Third brake lamp, refer to
Center brake lamp219
Three-point safety belt51
Through-loading system108
Tilt alarm sensor35
Tilt function, passenger-side
mirror52
"Time / Date"74,75
"Time format"75
Timer, refer to Preselecting
switch-on times100
Tire inflation pressure202
– loss84,85
Tire pressure monitoring,
refer to Flat Tire Monitor83
Tire Pressure Monitor
TPM84
– resetting the system85
– system limitations84
– warning lamp86
Tire puncture, refer to Flat Tire
Monitor84
Tire Quality Grading205Tires
– age205,207
– air loss86
– breaking in114
– changing, refer to Changing
wheels219
– condition206
– damage206
– inflation pressure202
– labels205
– minimum tread depth206
– new tires207
– pressure monitoring, refer to
Flat Tire Monitor83
– pressure monitoring, refer to
Tire Pressure Monitor
TPM84
– puncture84
– retreaded207
– Run-Flat Tires207
– size205
– wear indicators, refer to
Minimum tread depth206
– winter tires208
Tires, FTM83
TMC station, refer to Traffic
information141
"Tone"151
Tone in audio mode
– adjusting151
– middle setting152
Tools, refer to Onboard tool
kit216
"Top 8" for mobile phone184
Torque, refer to Engine
data230
Touch tone dialing186
Tow bar225
Tow fitting224
Tow fittings for tow-starting
and towing away224
Towing224
– car with automatic
transmission224
– methods225
Towing and tow-starting224
Town/city for destination124
"Town / City" in destination
entry124Tow rope225
Tow-starting224
"TPM"85
TPM, refer to Tire Pressure
Monitor84
Tracks
– random play sequence166
– sampling, Scan165
– searching for165
Track width, refer to
Dimensions231
Traction control, refer to
Dynamic Stability Control
DSC81
Traffic information for
navigation
– calling up142
– display on route map143
– during destination
guidance144
– switching on/off141
– symbols143
"Traffic Info settings"142
Traffic jam
– displaying traffic
information141
– driving around144
Transmission
– automatic transmission with
Steptronic60
– manual transmission60
Transporting children
safely55
Transport securing devices,
refer to Securing cargo118
Tread depth, refer to Minimum
tire tread206
Treble, refer to Treble and
bass151
Treble, tone control151
"Trip computer"69
Trip computer69
Trip-distance counter, refer to
Trip odometer66
"Triple turn signal"63
Triple turn signal activation63
Trip odometer66
Trunk, refer to Cargo bay