ECO mode BMW Z4 3.0I ROADSTER 2008 E85 Owner's Manual

Notes
6
Parts and accessories
For your own safety, use genuine parts
and accessories approved by BMW.
When you purchase accessories tested and
approved by BMW and Original BMW Parts, you
simultaneously acquire the assurance that they
have been thoroughly tested by BMW to ensure
optimum performance when installed on your
vehicle.
BMW warrants these parts to be free from
defects in material and workmanship.
BMW will not accept any liability for damage
resulting from installation of parts and accesso-
ries not approved by BMW.
BMW cannot test every product made by other
manufacturers to verify if it can be used on a
BMW safely and without risk to either the vehi-
cle, its operation, or its occupants.
Original BMW Parts, BMW Accessories and
other products approved by BMW, together
with professional advice on using these items,
are available from all BMW centers.
Installation and operation of non-BMW
approved accessories such as alarms, radios,
amplifiers, radar detectors, wheels, suspension
components, brake dust shields, telephones,
including operation of any mobile phone from
within the vehicle without using an externally
mounted antenna, or transceiver equipment, for
instance, CBs, walkie-talkie, ham radio or simi-
lar accessories, may cause extensive damage
to the vehicle, compromise its safety, interfere
with the vehicle's electrical system or affect the
validity of the BMW Limited Warranty. See your
BMW center for additional information.<
Maintenance, replacement or repair of
the emission control devices and sys-
tems may be performed by any automotive
repair establishment or individual using any cer-
tified automotive part.<
Service and warranty
We recommend that you read this publication
thoroughly.
Your BMW is covered by the following warran-
ties:
>New Vehicle Limited Warranty
>Rust Perforation Limited Warranty
>Federal Emissions System Defect Warranty
>Federal Emissions Performance Warranty
>California Emission Control System Limited
Warranty
Detailed information about these warranties is
listed in the Service and Warranty Information
Booklet for US models or in the Warranty and
Service Guide Booklet for Canadian models.

Opening and closing
20
Unlocking the luggage compartment
lid/tailgate
Press the button for approx. 1 second.
The luggage compartment lid/tailgate opens a
short distance, regardless of whether it was
locked or unlocked.
A previously locked luggage compart-
ment lid/tailgate is locked again after
closing.
Before and after each trip, check that the lug-
gage compartment lid/tailgate has not been
inadvertently unlocked.<
Panic mode*
You can also trigger the alarm system* if you
find yourself in a dangerous situation:
Press the button for at least 3 seconds.
To switch off the alarm: press any button.
Malfunctions
The remote control may malfunction due to
local radio waves. If this occurs, unlock and lock
the car at the door lock or luggage compart-
ment lid/tailgate lock with the key.
If the car can no longer be locked with a remote
control, the battery in the remote control is dis-
charged. Use this remote control key while driv-
ing for an extended period in order to recharge
the battery, refer to page18.
For US owners only
The transmitter and receiver units comply with
part 15 of the FCC/Federal Communications
Commission regulations. Operation is gov-
erned by the following:
FCC ID:
LX8EWS
LX8FZVS
LX8FZVE
Compliance statement:
This device complies with part 15 of the FCC
Rules. Operation is subject to the following two
conditions:
>This device may not cause harmful interfer-
ence, and>this device must accept any interference
received, including interference that may
cause undesired operation.
Any unauthorized modifications or
changes to these devices could void the
user's authority to operate this equipment.<
At the door lock
1.Turn the key.
The driver's door and fuel filler door are
unlocked.
2.Turn the key again.
The entire vehicle is unlocked.
When the vehicle is locked, the hazard warning
flashers light up once.
If you wish, you can have these special
features activated/deactivated.<
Do not lock the vehicle from the outside if
there is any person inside, because the
vehicle cannot be unlocked from inside without
special knowledge.<
Convenience operation
You can also operate the windows and the
Roadster's fully automatic convertible top
* via
the door lock.
Hold the key in the position for unlocking or
locking.
Watch the closing process to ensure that
no one is trapped. Releasing the key
stops the operation.<
Manual operation
If there is a malfunction, you can unlock or lock
the driver's door by turning the key in the lock all
the way to the left or right.

Reference
At a glance
Controls
Driving tips
Mobility
27
climate control to prevent a partial vacuum in
the vehicle.<
Roadster: fully automatic
convertible top*
The fully automatic convertible top combines
assured protection against the elements with
simple and easy handling.
Here are a few tips so that you get the most out
of your BMW:
>It is advisable to close the convertible top
when the vehicle is parked. When closed,
the top not only guards the passenger com-
partment from unforeseeable damage from
the weather, but also affords a degree of
protection against theft. Valuables, how-
ever, should only be kept in the locked
cargo bay, even when the convertible top is
closed.
>Never mount a roof-mounted luggage rack
system on the convertible top.
Do not operate the convertible top at tem-
peratures below 147/–106, otherwise
damage could result.
Never keep a wet convertible top in the convert-
ible top compartment for longer than one day,
otherwise the moisture could cause damage.
Do not lay objects on the convertible top, other-
wise they could fall off when the convertible top
is operated and cause damage or injuries.
Driving while the convertible top is not com-
pletely open or closed can cause vehicle dam-
age or personal injury.
Do not reach into the convertible top mecha-
nism during opening and closing. Keep children
away from the convertible top's range of move-
ment.
For safety reasons, whenever possible operate
the convertible top when the vehicle is station-
ary.<
If a convertible top operation has not yet
been completed as you start to drive off,
at a traffic light for example, you can continue
the procedure at moderate speed:
To do so, press and hold the corresponding button again.
At higher speeds, a vacuum effect in the pas-
senger compartment can cause the convertible
top to begin fluttering. Use the air conditioning
or automatic climate control to increase the air
flow rate and thus prevent a partial vacuum in
the vehicle.<
Before opening and closing
>Read and comply with the preceding safety
precautions.
>Make sure that the convertible top com-
partment panel in the cargo bay has been
folded down; refer to page23. Otherwise
the convertible top cannot be opened.
>Ensure that the luggage compartment lid/
tailgate is closed.
Opening and closing
With the key in ignition position 1 or higher,
refer to page40, and while the vehicle is sta-
tionary:
If at all possible, operate the convertible
top only with the engine running. This
saves unnecessary battery wear.
Before closing the convertible top, remove any
objects from the windshield frame that other-
wise could prevent the convertible top from
closing properly.<
1Closing
2Opening
The side windows will move down slightly
when you press the button for operating
the convertible top.
After the opening or closing operation, the win-
dows will move back up if you press the button
for more than 2 seconds after the LED has gone

Driving
40
Driving
Ignition lock
0Steering locked
1Steering unlocked
2Ignition switched on
3Starting the engine
Steering locked
This is the only position in which the ignition key
can be inserted or removed.
After removing the key, turn the steering wheel
slightly to the left or right until the lock engages.
Interlock with automatic transmission
The key can only be turned back to position 0 or
removed if the selector lever is in position P:
interlock.
Steering unlocked
You will find that it is often easier to turn the
ignition key from position0 to 1 if yo u m ove the
steering wheel slightly to help disengage the
detent.
Individual electrical equipment and accessories
are available for use.
Ignition switched on
All systems are operational.
Starting the engine
Engine idle speed is controlled by the engine
computer system. Increased speeds at start-up
are normal and should decrease as the engine
warms up. If engine speed does not decrease,
service is required.
To prevent the battery from discharging, always
deactivate electrical devices that are not in use.
Switch the ignition off when the vehicle is not
being driven.
Do not leave the engine running in
enclosed spaces. Otherwise, inhalation of
the hazardous exhaust gases could lead to
unconsciousness and death. The exhaust
gases contain carbon monoxide, an odorless
and colorless, but highly toxic gas. Do not leave
the vehicle unattended with the engine running.
An unattended vehicle with a running engine
poses a safety hazard.
Before leaving the car with the engine running,
place the transmission in idle or move the
selector lever to position P and apply the park-
ing brake to prevent the car from moving.<
When starting the engine, do not press the
accelerator pedal.
Do not end the starting procedure too early, but
do not continue it for more than 20 seconds.
Release the key immediately when the engine
starts.
Do not let the engine warm up in idling position.
Instead, begin to drive at moderate engine
speeds.
Vehicles with manual transmission:
Step on the clutch when starting the vehi-
cle. A lockout prevents the engine from starting
if the clutch is not depressed.<
Manual transmission
1.Apply the parking brake.
2.Depress the clutch and shift to idle position.
3.Start the engine.

Reference
At a glance
Controls
Driving tips
Mobility
43
R Reverse
Select only when the vehicle is stationary.
N Neutral, idle
You can select this in a car wash, for example.
The vehicle can roll.
D Drive, automatic position
This position is designed for driving under all
normal operating conditions. All forward gears
are selected automatically.
Under normal operating conditions, fuel con-
sumption is lowest when you are driving in posi-
tion D.
Kickdown
Kick-down enables you to achieve maximum
performance.
Press the accelerator pedal beyond the full-
throttle resistance point.
Manual operation and Sport program
M/S
Move the selector lever from position D to the
left into the M/S range:
The Sport program is activated. This is indi-
cated by the display SD in the instrument clus-
ter. This position is recommended for a perfor-
mance-oriented driving style.
The Sport program is enabled automatically
when the Dynamic Driving Control system is
activated, refer to page44.
To use the automatic function again, move the
selector lever to the right into position D.
Shifting gears using the selector lever
When you press the selector lever forwards or
backwards, the manual mode is activated and
Steptronic changes gear. The instrument clus-
ter shows M1 through M6.
The transmission will only execute upshifts and
downshifts that will result in an appropriate
combination of vehicle speed and engine rpm.
For instance, downshifts that would result in
excessive engine speed will not be executed.
The desired gear will appear briefly in the
instrument cluster, followed by the actual gear.
Shifting gears via the shift paddles* on
the steering wheel
The shift paddles allow you to shift gears
quickly since your hands can remain on the
steering wheel.
>When you use the shift paddles on the
steering wheel to shift gears while in auto-
matic mode, the transmission automatically
switches to manual mode.
>If you do not use the shift paddles for a cer-
tain amount of time and do not accelerate,
the transmission automatically switches
back to automatic mode.
If the selector lever is in the M/S gear
plane, manual mode remains active.
>To shift up, pull one of the shift paddles.
>To shift down, press one of the shift pad-
dles.
The instrument cluster shows M1 through M6.
The transmission will only execute upshifts and
downshifts that will result in an appropriate
combination of vehicle speed and engine rpm.
For instance, downshifts that would result in
excessive engine speed will not be executed.
The desired gear will appear briefly in the
instrument cluster, followed by the actual gear.
Malfunction
Red warning lamp
The transmission is overheating.
Reduce your speed immediately and
pull over at a suitable location so that

Everything under control
50
Setting the clock
1.Press button 2 for several seconds until the
hours are displayed and the colon flashes.
2.Press button1 repeatedly until the required
hour is set.
3.Press button2 to switch to the minutes dis-
play.
4.Press button1 repeatedly until the required
minutes are set.
5.Press button2 to confirm the time.
The set time of day is transferred to the car
radio display or appears in the instrument clus-
ter display.
Computer*
To view the information on the instrument clus-
ter display, press the onboard computer button
BC in the turn signal lever.
Each time you tap the onboard computer but-
ton, the following information is shown in the
specified order:
>Time
>Outside temperature
>Average fuel consumption
>Cruising range>Average speed
With the ignition key in position 1 or higher, the
respective last active setting is displayed.
If you wish, you can have all the following
information displayed in another unit of
measure.<
Setting the time format
You can have the clock displayed in 12h or 24h
mode:
While the time display is active, press the
onboard computer button BC in the turn signal
lever until the display changes.
Changing unit of measure: °F/°C
While the outside temperature display is active,
press the onboard computer button BC in the
turn signal lever until the display changes.
Average fuel consumption
The average fuel consumption is calculated for
the time for which the engine has been running.
To reset the average fuel consumption display:
Press the onboard computer button BC in the
turn signal lever for approx. 2 seconds.
Cruising range
The computer bases its calculations of the
cruising range on the preceding driving style
and on the amount of fuel remaining in the tank.
B e s u r e t o r e f u e l a s s o o n a s p o s s i b l e o n c e
your cruising range falls below 30 miles/
50 km, otherwise engine functions are not
ensured and damage can occur.<
Average speed
The average speed is calculated for the time for
which the engine has been running.
To reset the average speed display:
Press the onboard computer button BC in the
turn signal lever for approx. 2 seconds.

Technology for driving comfort and safety
52 In the following exceptional circumstances, it
may be effective to activate the DTC for a short
period:
>When driving on snow-covered grades, in
slush or on uncleared, snow-covered roads
>When rocking the vehicle or starting off in
deep snow or on loose surfaces
>When driving with snow chains
Activating DTC
Press the button briefly; the DTC indicator lamp
lights up in the instrument cluster.
Checking
Deactivating DTC
Press the button again; the DTC indicator lamp
in the instrument cluster goes out.
Malfunction in the driving stability
control systems
Have the system checked as soon as possible.Drive cautiously, think well ahead and
avoid full brake applications, otherwise
unstable driving conditions could result.<
The vehicle remains operational. Have the sys-
tem checked as soon as possible.
Drive cautiously and think well ahead,
otherwise unstable driving conditions
could result.<
Drive-off assistant
The drive-off assistant enables you to drive off
smoothly on uphill gradients. It is not necessary
to use the parking brake for this.
1.Hold the car in place by depressing the
brake.
2.Release the brake and drive off without
delay.
The drive-off assistant holds the car in
place for approx. 2 seconds after the
brake is released. Depending on vehicle load,
the car may roll backwards a little during this
time span. Drive off without delay after releas-
ing the brake. Otherwise, the drive-off assistant
will no longer hold the car in place after approx.
2 seconds and the car will start to roll back-
wards.< The indicator lamp flashes:
DTC controls the drive forces and
brake forces.
The indicator lamp is lit:
DTC has been activated.
The warning lamp for the brake system
lights up in red, together with the yel-
low indicator lamps for ABS and DSC:
The driving stability control systems
have failed.
Canadian models display these warn-
ing lamps.
The DSC warning lamp lights up
together with the yellow warning lamp
for the brake system:
DSC, including DTC and DBC, are
malfunctioning.
Canadian models display these warn-
ing lamps.

Reference
At a glance
Controls
Driving tips
Mobility
63
Air distribution
Direct the flow of air to the windows
, to the upper body area and to
the footwell . Intermediate settings
are possible.
Switching cooling function on/off
When the cooling function is on, the
air is cooled, dehumidified, then
reheated depending on the tempera-
ture setting.
Depending on the weather, the windshield may
fog over briefly when the engine is started.
Recirculated-air mode
If the air outside the car has an
unpleasant odor or contains pollut-
ants, temporarily shut off the supply
to the interior of the car. The system
recirculates the air within the vehicle.
If the windows fog over in the recircu-
lated-air mode, you should switch it off
and, if necessary, increase the air flow rate.
The manually controlled recirculated-air mode
should not be used continuously for lengthy
periods, otherwise the quality of the air inside
the car will gradually deteriorate.<
Temperature
For a higher temperature, turn the
rotary switch clockwise towards red.
For a lower temperature, turn the
rotary switch counterclockwise
towards blue.
Air flow rate
Adjust the air flow rate. The higher
the rate, the more effective the heat-
ing or cooling will be.
Switching the system on/off
Set the air flow rate to 0. Blower and air condi-
tioning are switched off and the air supply is cut
off.
To switch on the heater or air conditioning, set
any desired air flow rate.
Rear window defroster
The defroster switches off automati-
cally after a certain time.
Defrosting windows and removing
condensation
1.Air distribution1 in position .
2.Set air flow rate 2 to position 4.
3.Temperature3 to the right, red.
4.Switch on rear window defroster 4 to
defrost the rear window.
Ventilation
1Knurled wheels to set any vent position
from fully open to closed
2Slide for adjusting air flow direction
Ventilation for cooling
Adjust the vent outlets to direct the flow of cool
air toward you, 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.

Reference
At a glance
Controls
Driving tips
Mobility
67
automatic climate control does not have
enough time to achieve the set temperature.<
AUC Automatic recirculated-air
control/Recirculated-air mode
Switch on the desired operating
mode by pressing this button repeat-
edly:
>LEDs off: outside air flows in continuously.
>Left-hand LED on, AUC mode: a sensor
detects pollutants in the outside air. If nec-
essary, the system blocks the supply of out-
side air and recirculates the inside air. As
soon as the concentration of pollutants in
the outside air has decreased sufficiently,
the system automatically switches back to
outside air supply.
>Right-hand LED on, recirculated-air mode:
the inflow of outside air is shut off perma-
nently. The system recirculates the air
within the vehicle.
If the windows fog over in the recircu-
lated-air mode, you should switch it off
and, if necessary, increase the air flow rate.
The recirculated-air mode should not be used
over an extended period of time, otherwise the
air quality inside the car will deteriorate contin-
uously.<
Rear window defroster
The defroster switches off automati-
cally after a certain time.
Ventilation
1Knurled wheels to set any vent position
from fully open to closed
2Slide for adjusting air flow direction
Ventilation for cooling
Adjust the vent outlets to direct the flow of cool
air toward you, 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/activated-charcoal filter
The microfilter removes dust and pollen from
the incoming air. The activated-charcoal filter
provides additional protection by filtering gas-
eous pollutants from the outside air. Your BMW
center replaces this combined filter during reg-
ular maintenance. A substantial reduction in air
flow indicates that the filter needs to be
replaced earlier.

Things to remember when driving
74
Things to remember when driving
Break-in procedures
Moving parts need to be given some time until
they can interact smoothly with one another. To
ensure that your vehicle provides maximum
economy throughout a long service life, we
request that you observe the following.
Always obey all official speed limits.
Engine and differential
Up to 1,200 miles/2,000 km
Drive at varying engine and road speeds, but do
not exceed 4,500 rpm or 100 mph/160 km/h.
Refrain from using full throttle and avoid press-
ing the accelerator beyond the kickdown point.
After driving 1,200 miles/2,000 km
Engine and vehicle speeds can be gradually
increased.
Tires
Due to technical factors associated with their
manufacture, tires do not achieve their full trac-
tion potential until an initial break-in period has
elapsed. Therefore, drive cautiously during the
first 200 miles/300 km.
Brake system
Brakes require an initial break-in period of
approx. 300 miles/500 km to achieve optimized
contact and wear patterns between brake pads
and rotors. Drive cautiously during this break-in
period.
Clutch
The function of the clutch reaches its optimal
level only after a distance driven of approx.
300 miles/500 km. Shift gears carefully during
the break-in period.
After replacing components
The same break-in procedures should be
observed if any of the components mentioned
above have to be renewed in the course of the
vehicle's operating life.
Saving fuel
The fuel consumption of your vehicle depends
on several factors. You can lower fuel consump-
tion and the environmental impact by taking
certain measures, adjusting your driving style
and having the vehicle serviced regularly.
Remove any unneeded cargo
Additional weight increases fuel consumption.
Remove any mounted parts after you
have finished using them
Remove additional mirrors and the luggage rack
when they are no longer in use. Mounted parts
affect the vehicle's aerodynamics and increase
fuel consumption.
Close both windows
Open windows cause higher air resistance and
thus increase fuel consumption.
Check tire inflation pressure regularly
Check the tire inflation pressure at least twice a
month and before embarking on a long journey,
and correct it if necessary.
Low tire inflation pressure causes higher rolling
resistance and thus increases fuel consumption
and tire wear.
Set off immediately
Do not let the engine warm up while the car is
still standing, but set off immediately at moder-
ate engine speed. This is the fastest way for the
cold engine to reach its operating temperature.