ESP BMW Z4 SDRIVE35I 2009 User Guide

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4Backrest
Lumbar support*
You can also adjust the contour of the backrest
to obtain additional support in the lumbar
region.
The upper hips and spinal column receive sup-
plementary support to help you maintain a
relaxed, upright sitting position.
> Increase or decrease curvature: press the
switch at the front or rear, respectively.
> Shift curvature up or down: press the switch
at the top or botto m, respectively.
Backrest width*
You can change the width of the backrest to suit
your individual preferences by adjusting the lat-
eral-support pads. Press the front or rear end of the switch.
Backrest width decreases or increases
accordingly.
Heated seats*
Press once for each temperature level.
Three LEDs indicate the highest temperature.
To switch off:
Press button longer.
If you continue driving
within approx. the next
15 minutes, the seat he ating is automatically
activated at the previously set temperature.
The temperature is lowered or the heating is
switched off entirely to save on battery power.
The LEDs stay lit.
Seat and mirror memory*
You can store and call up two different combi-
nations of driver's-sea t and exterior-mirror
positions.
Settings for the backrest width and lumbar sup-
port are not stored in memory.

Controls
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Closing
Make sure you hear the latch plate engage in
the belt buckle.
The upper belt anchor is suitable for adults of
any stature as long as the seat is adjusted prop-
erly, refer to page 41.
Opening
1. Grasp the belt firmly.
2. Press the red button in the buckle.
3. Guide the belt into its reel.
Fasten safety belts reminder for driver
and passenger*
The indicator lamp comes on and an
acoustic signal sounds. In addition, a
message appears on the Control Dis-
play. Check whether the safety belt
has been fastened correctly.
The 'Fasten safety belts' reminder is issued as
long as the driver's safe ty belt has not been fas-
tened. In some country- specific versions, the
'Fasten safety belts' remi nder is also activated
at road speeds above approx. 5 mph or 8 km/h if
the passenger's safety belt is not fastened, if
objects are placed on the passenger seat, or if
driver or passenger unfasten their safety belts.
Damage to safety belts
If the safety belts are damaged or
stressed in an accident: have the belt sys-
tem, including any belt tensioners or child-
restraint systems, replaced and the belt
anchors checked. Have this work done only by
your BMW center or at a workshop that works
according to BMW repair procedures with cor-
respondingly trained perso nnel. Otherwise, it is
not guaranteed that the safety devices will func-
tion properly. <
Mirrors
Exterior mirrors
The passenger's mirror is more convex
than the driver's mirror. The objects seen
in the mirror are closer than they appear. Do not
gauge your distance from traffic behind you on
the basis of what you see in the mirror; other-
wise there is an increased risk of an accident. <
1 Adjustments
2 Folding mirrors in and out
*
3Switching to the other mirror or automatic
curb monitor
*
The setting for the exterior mirrors is stored for
the remote control currently in use
*. The stored
position is called up automatically when the
vehicle is unlocked.
Manual adjustment
The mirrors can also be adjusted manually:
press the edge of the glass.
Folding mirrors in and out*
At driving speeds up to approx. 20 km/h, you
can fold the mirrors in and out by pressing
button 2. This can be beneficial in narrow
streets, for example, or for moving mirrors that
were folded in by hand back out into their cor-
rect positions. Mirrors that were folded in are
folded out automatically at a speed of approx.
25 mph/40 km/h.
Before entering an automatic car wash,
fold in the exterior mi rrors by hand or with
button 2 to prevent them from being damaged
due to the width of the vehicle. <

Everything under control
64
Everything under control
Odometer, outside
temperature display, clock
1Knob in the instrument cluster
2 Outside temperature display and clock
3 Odometer and trip odometer
Knob in the instrument cluster
>To reset the trip odometer while the ignition
is switched on
> To display the time, outside temperature
and odometer briefly while the ignition is
switched off
Units of measure
To select the respective units of measure, miles
or km for the odometer as well as 7 or 6 for
the outside temperat ure, refer to page68.
The setting is stored fo r the remote control cur-
rently in use.
Time, outside temperature display
Setting the time, refer to page 71.
Outside temperature warning
When the displayed temperature sinks to
approx. +37 7/+3 6, a signal sounds and a
warning lamp lights up. There is an increased
risk of black ice. Black ice can also form at temperatures
above Select the symbol. +37
7/+3 6.
You should therefore driv e carefully on bridges
and shaded roads, for example, otherwise there
is an increased risk of an accident. <
Odometer and trip odometer
Resetting trip odometer:
With the ignition switched on, press button 1 in
the instrument cluster.
When the vehicle is parked
If you still want to view the time, outside tem-
perature and odometer re ading briefly after the
remote control has been taken out of the igni-
tion lock:
Press button 1 in the instrument cluster.
Tachometer
Never force the engine speed up into the red
warning field, see arrow. In this range, the fuel
supply is interrupted to protect the engine.

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Coolant temperature
A warning lamp will come on if the coolant, and
therefore the engine, becomes too hot. In addi-
tion, a message will appear on the Control
Display.
Check coolant level, refer to page201.
Engine oil temperature*
When the engine is at normal operating temper-
ature, the engine oil temperature is between
approx. 210 7/100 6 and approx. 300 7/
150 6.
If the engine oil temperature is too high, a mes-
sage appears on the Control Display.
Fuel gauge
Fuel tank capacity: approx. 14.5 US gallons/
55 liters.
You can find information on refueling on
page 188.
If the tilt of the vehicle varies for a longer period,
when you are driving in mountainous areas, for
example, the indicator may fluctuate slightly.
Reserve
Once the fuel level has fallen to the reserve
zone, a message briefly appears on the Control
Display and the cruising range for the remaining
amount of fuel is displayed on the computer.
Under a cruising range of approx. 30 miles/
50 km, the message remains in the Control
Display.
Refuel as soon as possible once your
cruising range falls below 30 miles/
50 km, otherwise engine functions are not
ensured and damage can occur. <
Computer
Displays in the instrument cluster
Calling up information
Press the button in the turn indicator lever.
The following items of information are dis-
played in the order listed:
>Cruising range
> Average speed
> Average fuel consumption
> Current fuel consumption
*
>No information
To set the corresponding units of measure,
refer to Units of measure on page 68.
Cruising range
Displays the estimated cr uising range available
with the remaining fuel. The range is calculated
on the basis of the way the car has been driven
over the last 18 miles/30 km and the amount of
fuel currently in the tank.

Everything under control
66
Refuel as soon as possible once your
cruising range falls below 30 miles/
50 km, otherwise engine functions are not
ensured and damage can occur. <
Average speed
Periods with the vehicle parked and the engine
switched off are not included in the calculations
of average speed.
With the trip comp uter, refer to page66, you
can have the average speed for another trip dis-
played.
To reset average speed: press the button in the
turn indicator lever for approx. 2 seconds.
Average fuel consumption
The average fuel consumption is calculated for
the time during which the engine is running.
With the trip comp uter, refer to page66, you
can have the average consumption for another
trip displayed.
To reset average fuel consumption: press the
button in the turn indi cator lever for approx.
2seconds.
Current fuel consumption
Displays the current fu el consumption. This
allows you to see whether your current driving
style is conducive to fuel economy with mini-
mum exhaust emissions.
Displays on the Control Display
You can also open the computer via iDrive; for
operating principle refer to page 16.
1. "Vehicle Info"
2. "Onboard info" or "Trip computer" Displays on the "Onboard info":
>
Cruising range
> Distance from destination
> Estimated time of arrival if:
>A distance was manually entered into
the computer, refe r to information
below.
> A destination was ente red in the naviga-
tion system
*, refer to page 119.
Displays on the "Trip computer":
> Departure time
> Trip duration
> Trip distance
Both displays show:
> The average speed and
> The average fuel consumption.
Resetting the fuel consumption and
speed
You can reset the values for average speed and
average consumption:
1.Select the respective menu item and press
the controller.
2. Press the controller again to confirm your
selection.

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Service requirements
The remaining driving distance and the date of
the next scheduled service are displayed briefly
immediately after you start the engine or switch
on the ignition.
The extent of service work required can
be read out from the remote control by
your BMW Service Advisor. <
For certain maintenance operations, you can
view the respective distance remaining or due
date individually in the instrument cluster.
1. Switch on the ignition, refer to page 50.
2. Press button 1 in the turn indicator lever up
or down repeatedly until the appropriate
symbol appears in the display, accompa-
nied by the words "SERVICE-INFO".
3. Press button 2.
4. Use button 1 to scroll through the individual
service items.

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Setting the date format
1."Settings"
2. "Time/Date"
3. "Format:"
4. Select the desired format.
The date format is stored.
Check Control
The concept
The Check Control monitors vehicle functions
and alerts you to any malfunctions in the sys-
tems monitored. A Ch eck Control message
encompasses indicator and warning lamps in
the instrument cluster and may include an
acoustic signal and text messages on the Con-
trol Display.
Indicator and warning lamps
Indicator and warning la mps can light up in a
variety of combinations and colors. indicates that Check
Control messages have
been stored. You can view the Check Control
messages whenever it is convenient for you.
Explanatory text messages
Text messages at the upper edge of the Control
Display explain the meaning of the displayed
indicator and warning lamps.
For most Check Control messages, you can
view more information la ter, e.g. regarding the
cause of a malfunction and how to respond;
refer to the information provided below.
In urgent cases, this information will be shown
as soon as the corresponding lamp comes on.
To exit the displayed information:
Move the controller to the left.

Everything under control
74
Hiding Check Control messages
Press the button in the turn indicator lever.
Some Check Control messages are displayed
until the malfunctions have been rectified. They
cannot be hidden. If several malfunctions
occur at the same time, they are displayed in
succession.
They are marked with the symbol
shown here.
Other messages are automatically hidden after
approx. 20 seconds, but are kept in memory. They are marked with the symbol
shown here.
Viewing stored Check Control
messages
1.Press button 1 in the turn indicator lever up
or down repeatedly until the appropriate
symbol appears in the display, accompa-
nied by the words "CHECK CONTROL".
2. Press button 2.
"CHECK OK" appears if there are no Check
Control messages.
If a Check Control message has been
stored, the corresponding lamp comes on.
It is accompanied by a text message on the
Control Display. 3.
Press button 1 to check for other mes-
sages.
4. Press button 2.
The display again shows the outside tem-
perature and the time.
Displaying stored Check Control
messages
iDrive, for operating pr inciple refer to page16.
1. Press the button.
2. "Vehicle Info"
3. "Vehicle status"
4. "Check Control"
5. Select the text message.
Speed limit
You can enter a speed, and a Check Control
message will indicate when you reach this
speed. This enables you, for example, to
receive warnings if you exceed a speed limit in
an urban area.
You are not alerted to having reached this
speed again until after your vehicle speed drops
below it by at least 3 mph or 5 km/h.
iDrive, for operating pr inciple refer to page16.
1. "Settings"
2. "Limit"

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Technology for driving comfort and safety
Park Distance Control PDC*
The concept
The PDC assists you with maneuvering in tight
parking spaces. Acoustic signals and a visual
indicator
warn you of the presence of an object
in front of
* or behind your ve hicle. To measure
the distance, there are four ultrasonic sensors
in either bumper.
These sensors have a range of approx. 6.5 ft/
2 m. However, an acoustic warning does not
sound until an object is approx. 24 in/60 cm
from the corner sensors, or approx. 5 ft/1.50 m
from the center sensors.
PDC is a parking aid that can indicate
objects when they are approached
slowly, as is usually th e case when parking.
Avoid approaching an obje ct a t h i g h s p e e d , o t h -
erwise physical circumstances may lead to the
system warning being issued too late. <
Switching on automatically
With the engine running or the ignition switched
on, the system is activated after approx. 1 sec-
ond when you engage reverse gear or move the
automatic transmission selector lever to
position R. Wait this short period before driving.
Switching off automatically
After approx. 165 ft/50 m of driving or above
approx. 20 mph or 30 km/h, the system
switches off and the LED goes out.
Signal tones
When nearing an object, its position is indicated
correspondingly by an in terval tone. As the dis-
tance between vehicle and object decreases,
the intervals between the tones become
shorter. If the distance to the nearest object
falls to below roughly 1 f t/30 cm, then a contin-
uous tone sounds.
An interval tone is interrupted after approx.
3seconds >
if you remain in front of an object that has
been detected by only one of the corner
sensors
> if you are driving parallel to a wall.
Malfunction
The indicator lamp in the instrument
cluster comes on. PDC is malfunc-
tioning. A message appears on the
Control Display. Have the system checked.
To avoid this problem, keep the sensors clean
and free of ice or snow in order to ensure that
they will continue to operate effectively. When
using a high-pressure cleaner, do not spray the
sensors for extended periods of time and only
from a distance of at least 4 in/10 cm.
PDC with visual warning
The approach of the vehicle to an object is
shown on the Control Display. Objects that are
farther away are displayed on the Control Dis-
play before a signal to ne sounds. The display
appears on the Control Display as soon as PDC
is activated.
System limitations
Even with PDC, final responsibility for
estimating the distance between the
vehicle and any obstructions always remains
with the driver. Even when sensors are pro-
vided, there is a blind spot in which objects can
no longer be detected. The system is also sub-
ject to the physical limit s that apply to all forms
of ultrasonic measurement, such as those
encountered with trailer towbars and hitches,
thin or wedge-shaped objects, etc. Low objects
that have already been displayed, e.g. curbs,
can disappear again from the detection area of
the sensors before or af ter a continuous tone
sounds. Higher, protruding objects, e.g. ledges,
cannot be detected. Therefore, always drive
cautiously, otherwise there is a risk of personal
injury or property damage.

Technology for driving comfort and safety
78
Loud sound sources outside or inside the car
can drown out the PDC signal. Therefore,
always drive cautiously, otherwise there is a risk
of personal injury or property damage.
<
Driving stability control
systems
Your BMW has a number of systems that help
to maintain the vehicle's stability even in
adverse driving conditions.
Antilock Brake System ABS
ABS prevents locking of the wheels during
braking. Safe steering response is maintained
even during full braking. Active safety is thus
increased.
The ABS is operational every time you start the
engine. Braking safely, refer to page 112.
Electronic brake-force distribution
The system controls the brake pressure in the
rear wheels to ensure st able braking behavior.
Dynamic Brake Control DBC
When you apply the brakes rapidly, this system
automatically produces the maximum braking
force boost and thus helps to achieve the short-
est possible braking distance during full brak-
ing. This system exploits all of the benefits pro-
vided by ABS.
Do not reduce the pressu re on the brake for the
duration of the full braking application.
Dynamic Stability Control DSC
DSC prevents the driving wheels from losing
traction when you pull away from rest or accel-
erate. The system also recognizes unstable
driving conditions, for example if the rear of the
car is about to swerve or if momentum is acting
at an angle past the front wheels. In these
cases, DSC helps the vehicle maintain a safe
course within physical lim its by reducing engine
output and through braking actions at the indi-
vidual wheels. The laws of physics
cannot be repealed,
even with DSC. An appropriate driving
style always remains th e responsibility of the
driver. Therefore, do no t reduce the additional
s a f e t y m a r g i n a g a i n b y t a k i n g r i s k s , a s t h i s c o u l d
result in an accident. <
Deactivating/activating the DSC OFF
program
The program can be de activated via Dynamic
Driving Control, refer to DSC OFF.
For better control
The indicator lamp flashes: DSC con-
trols the drive forces and brake forces.
The indicator lamp lights up: DSC has
failed.
DTC Dynamic Traction Control
The concept
The DTC system and the TRACTION program
is a variant of the DSC in which forward momen-
tum is optimized.
The system ensures maximum forward
momentum on special road conditions, e.g.,
unplowed snowy roads, bu t driving stability is
limited.
It is therefore necessary to drive with appropri-
ate caution.
You may find it useful to briefly activate DTC
under the following special circumstances:
> When driving in slus h or on uncleared,
snow-covered roads.
> When rocking the vehicle or driving off in
deep snow or on loose surfaces.
> When driving with snow chains.
Deactivating/activ ating DTC Dynamic
Traction Control
The system and program can be deactivated/
activated via Dynamic Driving Control.