stop start BMW Z4 ROADSTER 3.0I 2004 E85 Owner's Manual

Opening and closing
22
To close the convertible top
1.Press button 1
The convertible top is released and
moves up slightly
2.Holding on to the handle, pull the con-
vertible top forward onto the windshield
frame
3.Turn the handle until it audibly engages.
The convertible top is locked.
At higher speeds, the passenger
compartment may develop relatively
low air pressure, which can cause the con-
vertible top to begin fluttering. Increase the
air supply so that low pressure does not
occur in the vehicle.<
Fully automatic convertible
top*
The fully automatic convertible top com-
bines assured protection against the ele-
ments 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 pas-
senger compartment from unforesee-
able damage from the weather, but also
affords a degree of protection against
theft. In addition, only keep valuables in
the locked luggage compartment, even
with the convertible top closed
>Never mount a roof-mounted luggage
rack system on the convertible top.
>To prevent damage, do not operate the
convertible top at temperatures below
147/–106.Never store the convertible top while
it is wet to avoid permanent damage
from moisture.
Driving when the opening or closing pro-
cess has not been completed can cause
vehicle damage or personal injury.
Do not lay objects on the convertible top,
since they could fall off when the convert-
ible top is operated and cause damage or
injuries.
Do not reach into the convertible top mech-
anism during opening and closing. Keep
children away from the moving parts of the
convertible top during operation.<
If possible, only operate the convert-
ible top with the vehicle stopped, as
otherwise the process may be interrupted.
If you set the convertible top in motion
while the vehicle is stationary and then
have to start suddenly, for instance at a
traffic light, you can still complete the pro-
cedure by driving as slowly as possible and
again holding the corresponding button
pressed.<
At higher speeds, the passenger
compartment may develop relatively
low air pressure, which can cause the con-
vertible top to begin fluttering. Increase the
air supply so that low pressure does not
occur in the vehicle. 1To close
2To open
If at all possible, only operate the con-
vertible top if the engine is running.
This saves unnecessary battery wear.
Before closing the convertible top, remove
any objects from the windshield frame that

Reference
At a glance
Controls
Driving tips
Mobility
37
the ignition key immediately when the
engine starts.<
Extended starting attempts, charac-
terized by excessively frequent or
long periods with the starter engaged, can
damage the catalytic converter.<
If the engine fails to start on the first
attempt, for instance if it is very hot or cold:
>Press the accelerator pedal halfway
down.
Cold starts at very low temperatures, start-
ing at approx. 57/–156:
>Press the accelerator pedal halfway
down.
>On the first start attempt, engage the
starter for a longer period, approx.
10 seconds.
Manual transmission
1.Engage the parking brake
2.Gearshift lever in idling position
3.Depress clutch pedal
4.Start the engine.
Automatic transmission
1.Depress footbrake
2.Place selector lever in position P or N
3.Start the engine.
Before leaving the vehicle with the
engine running, place the selector
lever in position P and pull the parking
brake.
Do not leave the vehicle unattended with
the engine running. An unattended vehicle
with a running engine poses a safety haz-
ard.<
Sequential manual gearbox SMG
1.Depress footbrake
2.Move selector lever to neutral
position N
3.Start the engine.
If the engine does not start, re-
engage the gear last selected, refer to
the display in the instrument cluster, and move the selector lever to neutral position
N again.<
Before leaving the vehicle with the
engine running, place the selector
lever in position N and pull the parking
brake.
Do not leave the vehicle unattended with
the engine running. An unattended vehicle
with a running engine poses a safety haz-
ard.<
Switching off the engine
Do not remove the ignition key while
the vehicle is still moving. If you did
so, the steering lock would engage when
the steering wheel is turned.
When you leave the vehicle, always remove
the ignition key and engage the steering
lock.
Always engage the parking brake when
parking on downhill roads.<
You can have an acoustic signal set
as a reminder that the ignition key is
still in the ignition switch after the driver's
door has been opened.<
Manual transmission
Turn the ignition key to position 1 or 0.
Automatic transmission
Place the selector lever in position P and
turn the ignition key to position 1 or 0.
Sequential manual gearbox SMG
If you turn the ignition key to position 1 or 0
with the selector lever in position R, or in
sequential mode, a gear automatically
remains engaged.
If you turn the ignition key to position 1 or 0
with the selector lever in neutral position N,
a warning tone and the flashing gear indi-
cator in the display remind you that the
vehicle is not secured against rolling.
The warning stops after approx. 9 seconds.
Always engage the parking brake
when parking on downhill roads.
Engaging a gear may not sufficiently secure
the vehicle against rolling.<

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39
Automatic transmission
with Steptronic*
You can drive as with a normal automatic
transmission. In addition, you can also shift
manually.
When you move the selector lever from the
D position to the left into the M/S range, the
performance-oriented shift programs of the
automatic transmission are engaged. As
soon as you briefly tap the selector lever in
the + or — direction, Steptronic changes the
gear. The manual mode is engaged. When
you wish to use the automatic transmission
mode again, move the selector lever to the
right to position D.
Selector lever positions
P R N D M/S + —
Range selection
A detent prevents inadvertent shifting into
selector lever positions R and P. To disen-
gage the detent, press the button on the
front of the selector lever knob, see arrow.
Shiftlock
While the vehicle is stationary and
before shifting out of P or N, depress
the footbrake in order to disengage the
selector lever's lock mechanism.<
Hold the footbrake down until starting
off. The vehicle will otherwise start to
move when a drive position is engaged.
If you leave the vehicle with the engine run-
ning, move the selector lever to the P posi-
tion and apply the parking brake. If you fail
to do this, the vehicle could move.
Do not leave the vehicle unattended with the engine running. An unattended vehicle
with a running engine poses a safety haz-
ard.<
PPark
Select reverse only when the vehicle is sta-
tionary. The transmission locks to prevent
the rear wheels from turning.
RReverse
Select reverse only when the vehicle is sta-
tionary.
NNeutral
Select only when stopping for an extended
period.
DDrive: automatic shift program
This position is designed for driving under
all normal operating conditions. All forward
gears are available.
Kickdown
In the kickdown mode, you achieve maxi-
mum acceleration in position D.
Depress the accelerator pedal past the
increased resistance point at the full-throt-
tle position.
M/S Manual mode and
Sport program
When you change from D to M/S, the Sport
program is activated. This is indicated in
the gear indicator by SD. The M/S mode is
recommended for performance-oriented
driving.
With the first brief touch, the automatic
transmission shifts from the Sport program
to the manual mode.
When you tap the selector lever in the +

Driving
42 You accelerate from higher gears, e.g. dur-
ing passing, by downshifting manually.
In the following situations, the SMG in the
sequential mode assists you:
>The transmission will only execute
upshifts and downshifts that will result
in an appropriate combination of vehi-
cle speed and engine rpm. For
instance, downshifts that would result
in excessive engine speed cannot be
executed
>During a stop the gearbox is automati-
cally downshifted into first gear
>Shortly before a gear-dependent mini-
mum speed is reached, the gearbox
shifts down automatically without you
taking any action.
Display in the instrument cluster
Gear indicator
R N 1 2 3 4 5 6 D1 D2 D3 D4 D5 D6
The currently engaged gear, the selected
mode, and any possible malfunctions are
displayed in the instrument cluster.
Malfunctions
Indicator lamp
If the indicator lamp comes on,
there is a malfunction in the trans-
mission system.
All of the selector lever positions can con-
tinue to be engaged; however, in the for-
ward drive positions the range of available
gears is restricted.
If this happens, avoid extreme engine loads
and consult the nearest BMW center.
Warning tone
An acoustic signal sounds if the SMG gear-
box overheats; if possible you should either
stop or increase your pullaway speed so
that the system can cool down.
For jump-starting and towing, refer to the
information on page 94.
Driving Dynamic Control
The Driving Dynamic Control feature lets
you select between a standard and a sport
program.
Sport program
>The engine responds more spontane-
ously to any motion of the accelerator
pedal
>The vehicle is steered more directly and
traction is enhanced
Additionally with SMG and automatic
transmission:
>The shifting times are reduced
>The engine speed range is optimally uti-
lized in the drive mode.
Activating the Sport program
In ignition key position 2
Press the SPORT button.
The LED in the button lights up.
With automatic transmission:
The sport program of the automatic
transmission is enabled by activating the
Driving Dynamic Control system. Thus, the
selector lever does not have to be shifted
from D to M/S; refer also to page 39.<

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Between the blue and red zones
Normal operating range. The needle may
rise as far as the edge of the red sector dur-
ing normal operation.
Red
When you switch on the ignition, warning
lamp 1 comes on briefly to indicate an
operational check.
Comes on while driving:
The engine has overheated. Stop and
switch the engine off immediately and
allow it to cool down.
For checking the coolant level, refer to
page 84.
Service interval display
Remaining distance to next service
The displays shown in the illustration
appear for a few seconds when the ignition
key is in position 1 or after the engine is
started.
The next service due appears with the
message OIL SERVICE or INSPECTION,
together with the distance remaining in
miles – in kilometers in Canada – before the
next scheduled service.
The computer bases its calculations of the
remaining distance on the preceding driv-
ing style.
A flashing message and a minus sign in
front of the number mean that the service
interval has already been exceeded by the
distance shown on the display. Please con-
tact your BMW center for an appointment.
Outside temperature
If the vehicle is not equipped with a com-
puter, the display in the instrument cluster
always shows the outside temperature.
Clock
If you wish to have a permanent time dis-
play, you can have it appear in the car radio
display, refer to the Owner's Manual for
Radio.
You can set the clock and the time display
in the car radio as follows.
To set
Ignition key in position 1 or higher:
Hours
1.Keep button 2 pressed for several sec-
onds until the hours are displayed and
the colon flashes
2.Press button 1 repeatedly until the
required hour is set
Minutes
3.Press button 2 to switch to the minutes
display

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If the brake warning lamp comes on
together with the yellow indicator
lamps for the Antilock Brake Sys-
tem ABS and the Dynamic Stability
Control DSC:
The entire ABS and DSC control
system has failed. Continue driving
cautiously and defensively. Avoid
hard brake applications. Please have the
system checked by your BMW center as
soon as possible.
Indicator and warning lamps for
Antilock Brake System ABS and
Dynamic Stability Control DSC for
Canadian models.
Switching off DSC/Activating DTC
Press the DSC button briefly. The DTC indi-
cator lamp comes on and stays on.
DSC has been switched off; DTC is in ready
mode.
In the following exceptional circumstances,
it may be effective to activate the DTC for a
short period:
>When rocking the vehicle or starting off
in deep snow or on loose surfaces
>When driving on snow-covered grades,
in deep snow, or on a snow-covered
surface that has been packed down
from being driven on
>When driving with snow chains.
The gain in traction is achieved by a reduc-
tion in stabilizing intervention.
Switching off DSC and DTC
Hold the DSC switch down for at least
3 seconds. The DSC indicator lamp stays
lit.
In this case, no interventions to increase
stability and traction for the engine and
brakes are carried out.
To maintain vehicle stability, drive
with the DSC switched on whenever
possible.<
Reactivating DSC and DTC
Press the button again.
The indicator lamp goes out.
The laws of physics cannot be
repealed with DSC. It will always be
the driver's responsibility to drive in a man-
ner that matches road conditions. We
therefore urge you to avoid using the addi-
tional safety margin of the system as an
excuse for taking risks. Stabilizing interven-
tion is only performed to a limited degree
when the DTC is activated.
Do not make any modifications to the DSC
system. Allow only authorized technicians
to perform service procedures on the
DSC.<
Dynamic Brake Control DBC
If you step on the brake rapidly, this system
automatically produces maximum braking
force boost and thus helps to achieve the
shortest possible braking distance during
panic stops. All of the benefits of the ABS
system are exploited under these circum-
stances.
Do not reduce the pressure on the brake
pedal for the duration of the brake applica-
tion. When the brake pedal is released, the
DBC is deactivated.
Brake force display
The Brake force display indicates to the
road user behind you how hard you are
braking.

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Air distribution
You can direct airflow onto the
windows , toward the upper
body and into the footwell .
All intermediate settings are pos-
sible.
Air supply/blower
You can set the blower to 8 differ-
ent levels. Both heating and ven-
tilation become more effective as
the air supply rate is increased.
Turn the rotary control toward zero:
The blower and the heating are turned off,
and the air supply is stopped.
Temperature
In order to increase the tempera-
ture of the passenger compart-
ment, turn to the right toward the
red zone.
Air conditioning
The air is cooled and dehumidi-
fied and – depending on the tem-
perature setting – rewarmed.
Depending on the weather, the
windshield may fog over briefly when the
engine is started.
Condensation forms during operation
of the air conditioning system, which
then exits under the vehicle. Traces of con-
densed water on the ground underneath
the vehicle are thus normal.<
Outside-air/recirculated-air mode
If there are unpleasant odors in
the outside air, you can tempo-
rarily block the supply of incom-
ing air. The system then recircu-
lates the air currently within the vehicle.
If the windows fog over in the recircu-
lated air mode, switch this mode off
and increase the air supply as required. Do
not use the recirculated-air mode continu-
ously over a long period of time as this
would otherwise reduce the air quality in
the interior of the vehicle.<
Rear window defroster
The indicator lamp lights up when
the rear window defroster is
active. The rear window defroster
switches off automatically.
Ventilation
You can adjust the blower controls for the
upper body area to obtain the optimum air-
flow rates and directions for your personal
requirements:
1Rotary dials for opening and closing the
vents at any setting desired
2Slide for adjusting airflow direction
Microfilter
The built-in microfilter removes dust and
pollen from the incoming air and in the
recirculated air mode. Your BMW center
will replace this filter during the regularly
scheduled maintenance. A substantial
reduction in airflow indicates that the filter
needs to be replaced earlier.

Controlling the climate for pleasant driving
62
Tips for pleasant driving
Use the automatic system – switch on with
AUTO button 6. Select the desired interior
temperature.
Detailed setting options are described for
you below.
Automatic air distribution and supply
The AUTO program assumes the
adjustment of the air distribution
and air supply for you and in addi-
tion adapts the temperature to
external influences, summer or winter, to
meet preferences you can specify.
In the AUTO program, the air conditioning
mode is also turned on at the same time.
The AUTO program functions only to
a limited extent when the convertible
top is open.<
Individual air distribution
You yourself can direct airflow
onto the windows , toward the
upper body and into the foot-
well . The arrow lights up. The
automatic air supply remains unchanged.
All intermediate settings are possible. By
pressing the AUTO button, you can reacti-
vate the air distribution.
Temperature
The interior temperature that
appears on the display panel is a
general figure intended for refer-
ence purposes. When you start
the vehicle, the system ensures that the
selected temperature is reached as quickly
as possible, regardless of the season. It
then maintains this temperature.
Air supply/blower
You can set the blower through
an infinitely variable range of
speeds. This shuts off the auto-
matic air supply. The arrow lights
up. The automatic air distribution remains
unchanged. You can reactivate the auto-
matic air supply by pressing the AUTO but-
ton.When you turn the rotary control toward
zero: the blower, heating and air condi-
tioner are switched off, and the air supply is
stopped. You can reactivate the system by
turning the control toward the right again.
To defrost windows and remove
condensation
This program quickly removes ice
and condensation from the wind-
shield and the side windows.
Maximum cooling
Above an outside temperature of
417/+56 and with the engine
running, you achieve a maximum
cooling effect as quickly as possi-
ble. At the same time, the air conditioning is
turned on.
The temperature is set to the lowest possi-
ble value. The system switches into the
recirculated air mode and air flows at max-
imum blower speed from the air outlets
only. Therefore, the air outlets must always
be open when you select this program.
Air conditioning
The air is cooled and dehumidi-
fied and, depending on the tem-
perature setting, rewarmed.
Depending on the weather, the
windshield may fog over briefly when the
engine is started.
The air conditioning system is automati-
cally switched on when you use the AUTO
program.
Condensation forms during operation
of the air conditioning system, which
then exits under the vehicle. Traces of con-
densed water on the ground underneath
the vehicle are thus normal.<

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Washer fluids for washer
systems
Headlamp* and windshield washer
system
Capacity of windshield washer system:
approx. 3.2 quarts/3 liters.
Capacity when equipped with headlamp
washer system: approx. 5.3 quarts/5 liters.
Fill with water and, if required, with an anti-
freeze agent according to the manufac-
turer's recommendations.
We recommend that you mix the
washer fluid before adding it to the
reservoir.<
Antifreeze agents for the washing
systems are highly flammable. For
this reason, keep them away from sources
of flame and store them only in their original
containers. Store them so that they are
inaccessible to children. Comply with the
instructions on the containers.<
Engine oil
Engine oil pressure
The indicator lamp lights up in red:
Stop the vehicle immediately and
switch off the engine. Check the
engine oil level and top off as required. If
the oil level is correct, please contact the
nearest BMW center.
Do not continue driving, as the engine
could sustain serious damage from
inadequate lubrication.<
Engine oil level
The indicator lamp lights up in yel-
low while driving:
The oil level is at the absolute mini-
mum; refill as soon as possible. Do not
drive more than 30 miles/50 km before
refilling.
The indicator lamp lights up in yel-
low after the engine has been
switched off:
Add engine oil at the earliest opportunity,
when you stop to refuel.
Engine oil sensor
The indicator lamp lights up in yel-
low within 20 seconds after the
engine is started:
The oil level sensor is defective. Please
have it checked by a BMW center.
Checking the oil level
1.Park the vehicle on a level surface
2.Switch the engine off after it has
reached normal operating temperature
3.After approx. 5 minutes, pull the dip-
stick out and wipe it off with a clean lint-
free cloth, paper towel, or similar mate-
rial
4.Carefully push the dipstick all the way
into the guide tube and pull it out again
5.The oil level should be between the two
marks on the dipstick
6.Return the dipstick to the guide tube,
inserting it as far as it will go.
As with fuel economy, oil consumption is
directly influenced by your driving style and
vehicle operating conditions.

Giving and receiving assistance
94
Warning triangle*
The warning triangle is stored in the rear
luggage compartment panel.
Pull the ends of the rubber bands upward
and out of the fasteners.
Always observe all legal regulations
requiring a warning triangle to be car-
ried in the vehicle.<
First-aid kit*
The first-aid kit is located beneath the pas-
senger seat.
To open
Pull the handle and fold the cover down-
ward.
To close
Fold the cover up and press into the catch.
Some of the articles in the first-aid kit
have a limited period of use before
expiration. For this reason, check the expi-
ration dates of each of the items regularly,
and replace any whose expiration dates
have passed. You can acquire replace-
ments in any drugstore or pharmacy.
Always observe all legal regulations requir-ing a first-aid kit to be carried in the vehi-
cle.<
Jump-starting
When your battery is discharged you can
use two jumper cables to start your vehicle
with power from the battery in a second
vehicle. You can also use the same method
to help start another vehicle. Always use
jumper cables with fully insulated handles
on the terminal clamps.
Do not touch components carrying
current on a running engine. Contact
with these components can cause fatal
injury. Carefully observe the following
instructions to avoid personal injury and/or
damage to one or both vehicles.<
Preparations
1.Check whether the battery of the sup-
port vehicle has 12 volts and approxi-
mately the same capacity – measured in
Ah. This information is provided on the
battery
2.Stop the engine of the support vehicle
3.Switch off all electrical accessories in
both vehicles
Make absolutely certain that there is
no contact between the bodywork of
the two vehicles: short circuit hazard.<