2007 BMW 525I tire pressure reset

Controls
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workshop that works according to BMW repair
procedures with correspondingly trained per-
sonnel.
Flat Tire Monitor FTM*
The concept
The Flat Tire Monitor keeps track of the infla-
tion pressures in the tires as you drive. The sys-
tem provides an alert whenever the inflation
pressure drops significantly in relation to the
pressure in another tire.
In the event of a pressure loss, the rolling radius
and therefore the rotation speed of the wheels
change. 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 initialization must be repeated after
each time the tire inflation pressure is cor-
rected and after every tire or wheel change.<
System limits
The Flat Tire Monitor cannot indicate
sudden severe tire damage caused by
outside factors and does not detect a natural,
even pressure drop in all four tires.<
In the following situations, the system could be
delayed or malfunction:
>System has not been initialized
>Driving on snowy or slippery road surface
>Sporty driving style: slip in the drive wheels,
high lateral acceleration
>Driving with snow chains
*
When you are driving with the compact wheel*
the Flat Tire Monitor is unable to function.
Initializing system
The initialization finishes during driving,
which can be interrupted at any time.
When driving resumes, the initialization is con-
tinued automatically. Do not initialize the sys-
tem when driving with snow chains
* or com-
pact wheel
*.<
iDrive, for explanation of principle, refer to
page16.
1.Press the button.
This opens the start menu.
2.Press the controller to open the menu.
3.Turn the controller until "Settings" is
selected and press the controller.
4.Select "Vehicle / Tires" and press the con-
troller.
5.Change to upper field if necessary. Turn the
controller until "FTM" is selected and press
the controller.
6.Start the engine, but do not start driving.
7.Select "Reset" and press the controller.

Technology for comfort, convenience and safety
92 8.Select "Yes" and press the controller.
9.Start to drive.
The message "resetting FTM …" is dis-
played.
The initialization finishes during driving. Then
the message "Status: active" appears on the
Control Display again.
Indication of a flat tire
The warning lamp lights up red. A mes-
sage appears on the Control Display.
In addition, an acoustic signal sounds.
There is a flat tire or extensive inflation pressure
loss.
1.Reduce speed and stop the vehicle care-
fully. Avoid sudden braking and steering
maneuvers.
2.Identify damaged tire.
If identification is not possible, con-
tact a BMW center.<
3.Replace the damaged wheel, refer to
Changing wheels on page226.
Run-flat tires*
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 vehicle is not equipped with run-
flat tires, refer to page213, do not
continue driving. Continuing to drive with a
flat tire could cause severe accidents.<
2.At the next opportunity, check the air pres-
sure in all four tires.If the tire inflation pressure in all four
tires is correct, the Flat Tire Monitor
may 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 guide values:
>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. 94 miles/150 km
>With a full load:
4 or more persons, cargo bay full:
approx. 30 miles/50 km
Drive reservedly 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 vibrations or loud noises occur while
the vehicle is being driven, this can indicate final
failure of the damaged tire. Reduce speed and
stop at a suitable location as soon as possible,
otherwise pieces of the tire could become
detached and cause an accident. Do not con-
tinue driving, but instead contact your BMW
center. The concept
TPM checks the tire inflation pressure in the
four mounted tires. The system reports when
the tire inflation pressure has dropped consid-
erably in one or several tires.
Functional requirement
In order to assure the reliable reporting of a flat
tire, the system must have been reset with the
correct tire inflation pressure.

Controls
93Reference
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Mobility
Always use wheels with TPM electronics, oth-
erwise fault-free operation of the system is not
ensured.
Reset the system again after each correc-
tion of the tire inflation pressure and after
every tire or wheel change.<
System limits
TPM cannot announce sudden serious
tire damage caused by external influ-
ences.<
The system does not function properly if it has
not been reset, e.g. a flat tire is reported despite
correct tire inflation pressures.
The system is inactive and cannot display a flat
tire if a wheel has been mounted without TPM
electronics, e.g. a compact wheel, or if TPM is
temporarily interfered with by other systems or
devices which use the same radio frequency.
Status display on Control Display
The tire and system status is indicated by the
color of the tires.
TPM takes the fact that the tire pressure
changes during driving into account. A correc-
tion is only required if requested by TPM with
the color.
Green
The tire pressure matches the learned set state.
"TPM active" is displayed on the Control Dis-
play.
One wheel is yellow
Flat tire or a major drop in inflation pressure in
the indicated tire. A message appears on the
Control Display.
All wheels are yellow
Flat tire or a major drop in inflation pressure in
several tires. A message appears on the Control
Display.
Gray
The system cannot detect a flat tire.
Reasons for this can be:
>TPM is being reset
>Temporary interference due to systems or
devices which use the same radio fre-
quency
>Malfunction
Resetting system
Reset the system again after each correc-
tion of the tire inflation pressure and after
every tire or wheel change.<
Resetting finishes during driving, which can be
interrupted at any time. When driving resumes,
resetting is continued automatically.Do not
reset the system when driving with a compact
wheel
*.
iDrive, for explanation of principle, refer to
page16.
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.Change to upper field if necessary. Turn the
controller until "TPM" is selected and press
the controller.
6.Start the engine, but do not start driving.
7.Select "Reset" and press the controller.

Technology for comfort, convenience and safety
94 8.Select "Yes" and press the controller.
9.Start to drive.
The tires are shown in gray and "Resetting
TPM..." is displayed.
After a few minutes of driving, the set tire infla-
tion pressures in the tires are applied as the set
values to be monitored. Resetting finishes dur-
ing driving. The tires are shown in green on the
Control Display and "Status: TPM active" is dis-
played again.
If a flat tire is detected during resetting
and applying the tire inflation pressures,
all tires are shown in yellow on the Control Dis-
play. The message "Tire low!" is displayed.<
Message with low tire inflation
pressure
The warning lamp lights up yellow. A
message appears on the Control Dis-
play. In addition, an acoustic signal
sounds. There is a flat tire or extensive inflation
pressure loss.
1.Reduce speed and stop the vehicle care-
fully. Avoid sudden braking and steering
maneuvers.
2.Check whether your vehicle is equipped
with standard tires or run-flat tires.
You will recognize run-flat tires by a
circular symbol containing the letters
RSC on the side of the tire, refer to
page213.<
Standard tires
1.If all four wheels are shown in yellow, iden-
tify the damaged tire on the vehicle.
2.Replace the damaged wheel or wheels,
refer to Changing wheels on page226.
In contrast to a compact wheel, a spare wheel is
equipped with the necessary TPM electronics
and also monitored after mounting and after
resetting the system.
Have the tire replaced by a BMW center or a
workshop informed on handling TPM which
works according to BMW repair procedures
with correspondingly trained personnel.
Run-flat tires*
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 vehicle is not equipped with run-
flat tires, refer to page213, do not
continue driving. Continuing to drive with a
flat tire could cause severe accidents.<
2.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 guide values:
>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 or more persons, cargo bay full:
approx. 30 miles/50 km
Drive reservedly 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 vibrations or loud noises occur while
the vehicle is being driven, this can indicate final
failure of the damaged tire. Reduce speed and

Wheels and tires
208
Wheels and tires
Tire inflation pressure
Information for your safety
The condition of the tires and the maintenance
of the specified tire pressure are crucial not only
to the tire's service life, but also to driving com-
fort and most importantly, driving safety.
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 increases.
Check the tire inflation pressure regularly
and correct it as needed, even on the
compact tire
*: at least twice a month and before
starting long trips. Otherwise driving instability
or tire damage, and therefore accidents, can
result from incorrect tire inflation pressures.
Do not drive with depressurized, i.e. flat tires,
except 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 a loss of control over the vehicle.<
After correcting the tire inflation pressure,
reinitialize the Flat Tire Monitor, refer to
page91, or reset the Tire Pressure Monitor,
refer to page93.<
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 and tire brands respectively
approved and recommended by BMW; a list of
these is available from your BMW center.<
For correct identification of the right tire infla-
tion pressure for your tires, observe the follow-
ing:
>Tire sizes of your vehicle>Load conditions
>Maximum allowable driving speed
Tire inflation pressures for speeds
up to 100 mph/160 km/h
For normal driving up to 100 mph/160 km/h,
adjust pressures to the respective tire inflation
pressures listed on the following pages in the
column Traveling speeds up to max. 100 mph/
160 km/h to achieve optimum driving comfort.
These pressure specifications can be found on
the door post when you open the driver's door.
The permissible top speed for these tire
inflation pressures is 100 mph/160 km/h.
Do not exceed this speed, otherwise tire dam-
age and accidents may result.<
Tire inflation pressures for speeds
above 100 mph/160 km/h
In order to drive at maximum speeds in
excess of 100 mph/160 km/h, please
observe, and, if necessary, adjust tire pressures
for speeds exceeding 100 mph/160 km/h from
the relevant table on the following pages. Oth-
erwise tire damage and accidents could
occur.<
Observe all national and local maximum speed
limits, otherwise violations of the law could
occur.

Mobility
229Reference
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tion. Dirt in valve stems is a frequent source
of gradual air loss.<
4.Initialize the Flat Tire Monitor, refer to
page91, or reset the Tire Pressure Monitor,
refer to page93.
5.Replace the damaged tire as soon as possi-
ble and have the new wheel/tire balanced.
Driving with compact wheel
Drive reservedly and do not exceed a speed of
50 mph/80 km/h.
The driving characteristics change, for example
reduced track stability on braking, extended
braking distance, and altered self-steering
characteristics in the limit range. In conjunction
with winter tires, these characteristics are more
pronounced.
Only one compact wheel may be
mounted. You should re-equip with
wheels and tires of the original size as quickly as
possible.<
Vehicle battery
Battery care
The battery is 100 % maintenance-free, i.e., the
electrolyte will last for the life of the battery
when the vehicle is operated in a temperate cli-
mate. Your BMW center will be glad to advise in
all matters concerning the battery.
Charging battery
Only charge the battery in the vehicle via the
terminals in the engine compartment with the
engine switched off. Connections, refer to
Jump starting on page232.
Disposal
Have old batteries disposed of by your
BMW center or hand them in to a recy-
cling center. Maintain the battery in an upright
position for transport and storage. Always
restrain the battery to prevent it from tipping
over during transport.<
Power failure
After a temporary power loss, the functioning of
some equipment may be limited and require
reinitialization. Individual settings are also lost
and must be updated:
>Seat, mirror and steering wheel memory
The positions must be stored again, refer to
page47.
>Time and Date
The values must be updated, refer to
page83.
>Radio
Stations must be stored again if necessary,
refer to page166.
>Navigation system
Wait until the system starts, refer to
page134.
Fuses
Never attempt to repair a blown fuse and
do not replace a defective fuse with a sub-
stitute of another color or amperage rating, as
this could lead to a circuit overload, ultimately
resulting in a fire in the vehicle.<
Sedan
Spare fuses, plastic tweezers and fuse alloca-
tion diagram are located in the compartment for
the onboard tool kit, refer to page222.
Sports Wagon
Spare fuses and a pair of plastic tweezers are
contained in the onboard tool kit, refer to
page222. A fuse allocation diagram is located
in the cargo bay behind the right-hand side
panel.

Reference 261
At a glance
Controls
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Mobility
Pollen, refer to Microfilter/
activated charcoal filter111
Position
– displaying154
– storing143
Power failure229
Power windows, refer to
Windows40
Preselecting activation times
of the parked car
ventilation111
"Presets" on the
radio164,170
Pressure, tires208
Pressure monitoring of tires,
refer to TPM Tire Pressure
Monitor92
"Profile"202
Programmable buttons on
steering wheel53
Protective function, refer to
Pinch protection system
– glass sunroof, electric42
– panorama glass sunroof44
– windows41
R
Radio
– Autostore165
– controls160
– High Definition Radio168
– sampling stations165
– satellite radio169
– selecting frequency
manually165
– selecting
waveband160,164
– station search165
– station selection164
– station with the best
reception165
– storing stations166
– switching on/off160
– tone control161
– volume161
– Weather Band, refer to
Weather news flashes167Radio key, refer to Keys/
remote control28
Radio position, refer to Radio
readiness59
Radio readiness59
– switched off60
– switched on59
– with comfort access40
Rain sensor66
"Random", random play
sequence176
"Random all" in audio
mode176
"Random directory" in audio
mode176
"RDS"167
Reading lamps106
Rear armrest, refer to Center
armrest, rear118
Rear lamps, refer to Tail
lamps225
– replacing bulbs225
Rear seats
– adjusting head restraints49
– folding over backrest119
– heating51
– removing head restraints50
Rear socket118
Rear ventilation111
Rearview mirror52
Rear window
– changing wiper blade222
– heating109
– opening and closing on
Sports Wagon35
– roller sun blind, refer to Sun
blinds114
– window wiper on Sports
Wagon
67,128
Rear window safety switch41
"Received calls"188
Reception
– quality167
– radio stations167
– regional station165
Reception level of mobile
phone, refer to Status
information20Rechargeable flashlight115
Recirculated-air mode110
– air recirculation110
– AUC Automatic
recirculated-air control110
Reclining seat, refer to
Seats46
Recording times, refer to
Stopwatch82
"Redial" for mobile phone188
Redialing with mobile
phone194
Reflectors, refer to Tail
lamps225
Refueling206
Releasing, hood216
Releasing the locks, refer to
Unlocking39
"Relock door if not
opened"33
Remaining distance, refer to
Cruising range76
Remaining distance to
destination, refer to
Computer77
Remote control28
– comfort access38
– garage door opener113
– luggage compartment lid31
– malfunction32,40
– replacing battery40
– tailgate31
Removing condensation on
the windows109
"Repeat directory" in audio
mode176
"Repeat" in audio mode176
"Repeat track" in audio
mode176
Replacement fuses229
Replacement of tires, refer to
Changing wheels226
Replacement remote control,
refer to New remote
controls28
Replacing bulbs, refer to
Lamps and bulbs223
Replacing tires214

Everything from A to Z
262 Replacing wheels/tires, refer
to New wheels and tires214
Reporting safety defects7
Reserve
– warning, refer to Fuel
gauge76
"Reset"91,93
Reset, refer to Resetting tone
settings163
"Reset" of tone settings163
"Reset" stopwatch82
"resetting FTM …"92
Residual heat110
Restraint systems
– for children55
– refer to Safety belts50
Retaining straps, refer to
Storage area package,
Sports Wagon121
Retreaded tires214
Reverse, fast
– CD changer177
– CD player177
Reverse gear
– automatic transmission with
Steptronic64
– manual transmission62
– SMG Sequential Manual
Transmission63
Road map148
"Roadside
Assistance"190,197
Roadside Assistance232
Roadside parking lamps105
– replacing bulbs224
Roller sun blind, refer to Sun
blinds114
Roll-up cover, Sports
Wagon119
Roof load capacity241
Roof-mounted luggage
rack130
Rope, refer to Tow-starting
and towing233
Rotary/pushbutton, refer to
iDrive16Route145
– bypassing sections151
– changing151
– changing criteria145
– displaying148
– displaying arrow display148
– displaying map view148
– displaying streets or towns/
cities149
– selecting145
Route information, refer to
Destination guidance with
voice instructions
150
Route map, refer to Displaying
map view148
Route selection145
RSC Runflat System
Component, refer to Run-
flat tires213
Rubber parts, refer to Caring
for your vehicle brochure
Run-Flat Tires
– Flat Tire Monitor91
Run-flat tires213
– continuing driving with a
damaged tire92,94
– flat tire92,94
– new wheels and tires214
– tire inflation
pressure92,94,208
– Tire Pressure Monitor92
– tire replacement214
– winter tires214
S
Safety5
Safety belts50
– damage50
– refer to Caring for your
vehicle brochure
– sitting safely45
– warning lamp50
Safety belt tensioners
– refer to Airbags96
– refer to Safety belts50Safety systems
– ABS Antilock Brake
System87
– airbags96
– driving stability control
systems87
– safety belts50
Safety tires, refer to Run-flat
tires213
Satellite radio169
– enabling channel169
– selecting channel170
– storing channel170
"SAT" for radio161,169
"Save current
destination"144
"Scan"
– music tracks on CD175
– stations with radio165
Scan
– CD changer175
– CD player175
– radio165
"Scan all" in audio mode175
"Scan directory" in audio
mode175
Screen, refer to iDrive16
Screw thread for tow
fitting234
SDARS, refer to Satellite
radio169
"Seat heater distribution"51
Seats46
– active backrest width
adjustment47
– adjusting the seats46
– comfort seat46
– easy entry/exit47
– heating50
– lumbar support47
– memory, refer to Seat, mirror
and steering wheel
memory47
– shoulder support46
– sitting safely45
– storing the setting47
– thigh support46
– ventilation, refer to Active
seat ventilation51