2009 BMW Z4 SDRIVE35I change time

Technology for driving comfort and safety
82
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 person without luggage:
approx. 155 miles/250 km
> With a medium load:
1 person, cargo bay full, or 2 people
without luggage:
approx. 90 miles/150 km
> With a full load:
2 people, cargo bay full:
approx. 30 miles/50 km
Drive cautiously and do not exceed a
speed of 50 mph or 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 lo ud 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. Otherw ise parts of the tire
could come loose, resulting in an accident. Do
not continue driving. Instead, contact your
BMW center. <
Status display
1."Vehicle Info"
2. "Vehicle status"
3. "Flat Tire Monitor"
The status is displayed.
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 re liable 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 TP M 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.
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 vehicl e 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.

Controls
83Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
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 su bstantial 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 page 16.
1. Press the button
The start menu is opened.
2. "Vehicle Info"
3. "Vehicle status"
4. "Reset TPM" 5.
Start the engine, but do not start driving.
6. Start the initializatio n using "Reset TPM".
7. 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-
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 page 195, the stan-
dard equipment by design, do not continue
driving. Otherwise a severe accident could
result after a tire punc ture if you continue
driving. <

Technology for driving comfort and safety
86
Do not attempt to remove
the airbag retention
system from the vehicle. Do not modify the indi-
vidual components of the system or its wiring in
any way. This includes the upholstered covers
of the steering wheel, the dashboard and the
seats. Do not attempt to remove or dismantle
the steering wheel.
Do not touch the individual components imme-
diately after the system has been triggered,
because there is a danger of burns.
In the event of malfunctions, deactivation or
triggering of the airbag restraint system, have
the testing, repair, remo val and disposal of air-
bag generators executed only by a BMW center
or a workshop that works according to repair
procedures of BMW with correspondingly
trained personnel and th at has the required
explosives licenses. Unprofessional attempts to
work on the system could lead to failure in an
emergency or to undesi red airbag activation,
either of which could resu lt in personal injury.<
Warning notices and information about the air-
bags can also be found on the sun visors.
Automatic deactivation of the
passenger airbags
The system determines whether the passenger
seat is occupied by meas uring the resistance of
the human body. Front, knee and side airbags
on the passenger side ar e activated or deacti-
vated accordingly.
Make sure that the passenger keeps his
or her feet in the footwell; otherwise, the
passenger airbags may not function properly. <
The indicator lamp above the interior rearview
mirror shows the current status of the passen-
ger airbags, deactivated or activated, refer to
Status of passenger airbags below.
Before transporting a child on the front
passenger seat, read the safety precau-
tions and handling instructions under Trans-
porting children safely, see page 48.
Malfunction of the automatic
deactivation system
The front, knee and side airbags can also be
deactivated by adolescents and adults sitting in
certain positions; the in dicator lamp for the pas-
senger airbags comes on. In such cases, the
passenger should change his or her sitting
position so that the pa ssenger airbags are acti-
vated and the indicator la mp goes out. If the
desired airbag status cannot be achieved by
changing the sitting posi tion, do not transport
the passenger in the vehicle.
To make sure that occupa tion of the seat cush-
ion can be detected correctly:
> Do not attach seat covers, seat cushion
padding, ball mats or other items to the pas-
senger seat unless they are specifically rec-
ommended by BMW.
> Do not place any items under the seat which
could press against the seat from below. <
Status of passenger airbags
The indicator lamp for the passenger airbags
shows the functional status of the passenger's
front, knee and side airbags in accordance with
whether and how the passenger seat is occu-
pied. The indicator lamp shows whether the
passenger airbags are activated or deactivated.
> The indicator lamp lights up when a child
who is properly seated in a child-restraint
system intended for that purpose is
detected on the seat or the seat is empty.
The front, knee and side airbags for the pas-
senger are not activated.
Most child seats are detected by the sys-
tem, especially child seats required by the
NHTSA at the time of vehicle production.

Climate
94
Rear window defroster
The defroster switches off auto-
matically after a certain time or
when the hardtop is opened.
Temperature
To increase the temperature, turn
the rotary switch clockwise
towards red.
For a lower temperature, turn the
rotary switch counterc lockwise towards blue.
Defrosting windows and removing
condensation
1.Air distribution 1 in position .
2. Deactivate recirc ulated-air mode 2.
3. Switch on cooling function 3.
4. Temperature 4 to the right, red.
5. Set the air flow rate 5 to the maximum level.
6. Switch on rear window defroster 6 to
defrost the rear window .
Ventilation
1 Use the lever to change the direction of the
air flow
2 Use the knurled wheels to smoothly open
and close the air vents
Ventilation for cooling
Adjust the vent outlets to direct the flow of cool
air in your direction, for instance if it has become
too hot in the car.
Draft-free ventilation
Set the vent outlets so that the air flows past
you and not straight at you.
Microfilter
The microfilter removes dust and pollen from
the incoming air. The microfilter is changed
by your BMW center during routine mainte-
nance work.

Destination entry
120
>
To delete all letters:
Select the symbol and press the
controller for a lengthy period.
> To enter spaces:
Select the symbol.
The list gradually grow s smaller each time
you enter a new letter.
2. Move the controller to the right.
3. Select the name of th e town/city from the
list. The three destinations stored last are
displayed.
If there are several towns/cities with the
same name:
1. Change to the list of town/city names.
2. Highlight the town/city: a preview map is
displayed.
3. Select the town/city.
Entering the postal code
1.Select "Town/City/Postal Code" or the dis-
played town/city.
2. Select the symbol.
3. Select the digits.
4. Change to the list of postal codes and
towns/cities.
5. Highlight the postal code. A preview map is
displayed in the assistance window.
6. Select the postal code.
Entering street and intersection
1.Select "Street" or the displayed street.
2. Enter a street and intersection as you would
the town/city.
After the street you can also enter the intersec-
tion or the house number.
If there are several streets with the same name:
1. Change to the list of street names.
2. Highlight the street: a preview map is dis-
played.
3. Select the street.
Entering a street without a destination
town/city*
You can also enter a street without specifying a
town/city. In this case, all streets of the same
name in the designated state/province are
offered. The correspond ing town/city is dis-
played after the street name.
If a town/city has already been entered, you can
negate this entry. This could be helpful in
instances where the desired street does not
exist in the entered town/city because it
belongs to another suburb, for example.
1. "Navigation"
2. "Enter address"
3. Select "Street" or the displayed street.
4. Change to the list of street names.
5. "Find streets in" the state/province cur-
rently displayed.
6. Select the letters.
7. Change to the list of street names.
8. Highlight the street. A preview map is dis-
played in the assistance window.
9. Select the street.
Entering a house number
You can enter any house number stored in the
navigation data for the street.
1."House number"
2. Select the digits.
3. Change to the list of house numbers.
4. Select a house number or range of house
numbers.

Navigation
Driving tips
123Reference
At a glance
Controls
Communications
Entertainment
Mobility
1."Search destination"
2. Select the location where the system is to
search for the special destination:
>"At current location"
> "At destination"
> "At a different destination"
> "Along route"
Special destination category
1. "Category"
2. Select "All" or a spec ific category, e. g.
hotels and restaurants.
3. "Route Points of Interest
"*
Category details
Additional details can be displayed for some
special destinations, e. g. Italian restaurants.
1. "Points of Interest"
2. "Category details"
Starting the search for special
destinations
1."Start search" after the criteria have been
defined.
2. A list of the special destinations is dis-
played.
>Special destinations "At current loca-
tion" are listed according to their dis-
tance from the current location and are
displayed with a directional arrow point-
ing to the destination.
> Destinations of the selected category
are displayed in the map display as sym-
bols. The display depends on the map
scale and the category.
> Special destinations "At destination",
"At a different destination", "Along
route" are listed acco rding to their dis-
tance from the locati on where the search
is being performed.
3. Highlight the special destination. The desti-
nation is displayed in the preview map.
4. Select the special destination.
5. Select the symbol. Destination guid-
ance to the special destination is started.
If a phone number is available, a connection
can be established, if desired.
Entering special destinations by name
1."Name, A-Z search"
2. Enter the letters.
Depending on the distance, the search may
take some time. The list can contain a max-
imum of 100 entries.
3. Change to the list of special destinations.
4. Highlight the special destination. The desti-
nation is displayed in the preview map.
5. Select the special destination.
6. Select the symbol to start destination
guidance.
Displaying special destinations in
the map
To display symbols of the special destinations
in the map:

Destination entry
124
1.
"Navigation"
2. "Map"
3. Open "Options".
4. "Display Points of Interest"
5. Select the settings.
Entering the destination via
the map
If you only know the lo cation of the town or
street, you can enter the destination using
the map.
Opening the map
1. "Navigation"
2. "Map"
A map section is displa yed on the Control Dis-
play. The map shows the cu rrent position of the
vehicle.
Selecting the destination
1. Move the controller to the left.
2. Select the symbol. The interactive map
is started. 3.
Select the destination with the cross-hairs.
>Turn the controller: change the scale.
> Move the controller in one direction:
move the map.
> First move the controller and turn it at
the same time: move the map diagonally
to select a destination in one of the four
regions.
4. Press the controller to display additional
menu items:
>Select the symbol: start destination
guidance.
Specifying the street
If the system cannot recognize a street or town/
city, it displays a street name in the vicinity or
the coordinates of the destination.
Interactive map
In the interactive map, th e scale can be adjusted
and the visible map section can be shifted. In
addition, pressing the controller makes further
functions available:
>Select the symbol: start destination
guidance.
> "Exit interactive map"
> "View in northern direction"
> "Display destination"
The map section around the destination
is displayed.
> "Display current location"
The map section around your current
location is displayed.
> "Find points of interest", refer to
page 122.

Destination guidance
128
Destination guidance
Starting destination
guidance
1."Navigation"
2. "Enter address"
3. Select the destination.
4. "Start guidance"
After the route is calculated, the route is dis-
played in the map on the Control Display.
Terminating destination
guidance
1. "Navigation"
2. "Map"
3. Select the symbol
Continuing destination
guidance
If the destination was no t reached at the end of
the last trip, the system asks whether it should
continue destination guidance.
Select "Resume guidance" or "Stop guidance".
Route criteria
General information
You can influence the calculated route by
choosing certain route criteria. You can change
the route criteria as often as you like during des-
tination entry or during destination guidance.
The route is planned acco rding to fixed rules.
The type of road is ta ken into account, e.g.
whether it is a highway or a winding road. As a
result, the routes recommended by the naviga-
tion system may not always be the same ones
that you would choose based on personal
experience. The settings are stored
for the remote control
currently in use.
Changing route criteria
1. "Navigation"
2. "Map"
3. "Route preference"
4. Selecting a criterion:
>"Fast route": time-optimized route,
which is a combination of the shortest
possible route and the fastest roads
> "Efficient route": optimized combination
of the fastest and shortest roads
> "Short route": short distance, irrespec-
tive of how fast or slow progress will be
> "Alternative routes": other suggested
alternative routes
5. Select additional route criteria, if desired.
Where possible, the sele cted criteria will be
avoided on the route.
> "Avoid highways"
> "Avoid toll roads"
> "Avoid ferries"
The setting applies to th e current route and to
the planning of future routes.
Dynamic destination guidance
"Dynamic guidance" is switched on:
The route is automatically changed in the event
of traffic obstructions. The system does not