parking brake BMW Z4 ROADSTER 2.5I 2005 E85 Owner's Manual

At a glance
Controls
Driving tips
Mobility Reference
13
Colors
The indicator and warning lamps can light up in
various colors and combinations.
>Red:
Stop the vehicle immediately
or
an important reminder
>Red and yellow:
Continue driving cautiously
>Yellow:
Have the system checked soon
or
for your information
>Green or blue:
For your information. Engine oil pressure/Engine oil level/
Engine oil sensor
+86
Brake system
+
Parking brake released88
Parking brake applied37
With other warning lamps51
Brake warning lamp for Canadian
models
Antilock Brake System ABS/Driving
stability control systems
+50
Antilock Brake System ABS/Driving
stability control systems for Canadian
models
Dynamic Stability Control
DSC
+50
Dynamic Traction Control
DTC
+50
Flat Tire Monitor
+52
Automatic transmission/Sequential
manual gearbox SMG
+39, 41
Brake pads
+88
Add coolant87
Check gas cap
+76
Service engine soon
+90
Service engine soon indicator lamp for
Canadian models
Defective bulb56
Turn signal indicators42
Fog lamps57
Headlamp flasher/High beams42, 57
Electric Power Steering
+42
Doors or luggage compartment lid
open
Engine electronics
+
Malfunction in the engine electronics.
You can continue to drive with
reduced engine output or engine
speed. Please have the system
inspected by your BMW center.

Driving
36
Driving
Ignition lock
0 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.
If the key is not removed, an acoustic signal
sounds when the driver's door is opened.
Interlock
Vehicles with automatic transmission:
In order to turn the key back to position0 or to
remove it, move the selector level into position
P first.
1 Steering unlocked
You will find that it is often easier to turn the
ignition key from position0 to 1 if you move the
steering wheel slightly to help disengage the
detent.
Individual electrical equipment and accessories
are available for use.
2 Ignition switched on
All systems are operational.
3 Starting engine
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, inhaling the
hazardous exhaust gases could lead to uncon-
sciousness and death. The exhaust gases con-
tain carbon monoxide, an odorless and color-
less, 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 you leave the vehicle with the engine
running, place the engine in idle first or engage
the P position and apply the parking brake. If
you fail to do this, the vehicle could move.<
Starting the engine
Do not press the accelerator pedal while start-
ing the engine.
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.<
Do not end the starting procedure too early, but
do not continue it for more than 20 seconds.
Release the ignition key immediately when the
engine starts.
If the engine fails to start on the first attempt,
e.g. if it is very hot or cold:
Press the accelerator pedal halfway down.
Cold starts at very low temperatures, below
approx. +57/–156, and at high altitudes,
above 3,300 ft/1,000 m:

Reference
At a glance
Controls
Driving tips
Mobility
37
>On the first attempt, engage the starter for
approx. 10 seconds
>Press the accelerator pedal halfway down.
Avoid frequent starting attempts in short
succession or repeated starting attempts
during which the engine does not start. Other-
wise, uncombusted or incompletely combusted
fuel will pose a risk of the catalytic converter
overheating and being damaged.<
Manual transmission
1.Engage the parking brake
2.Gearshift lever in idling position
3.Depress the clutch pedal.
If the clutch pedal is not depressed, the
engine cannot be started
4.Start the engine.
Automatic transmission
1.Depress footbrake
2.Place selector lever in position P or N
3.Start the engine.
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
position last selected, refer to the display
in the instrument cluster, and then engage posi-
tion N again.<
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.
Apply the parking brake when parking on steep
gradients, as the vehicle could otherwise start
to roll.<
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
1.Turn the ignition key to position 1 or 0
2.Engage first gear or reverse gear.
Automatic transmission
1.Place the selector lever in position P
2.Turn the ignition key to position 1 or 0.
Sequential manual gearbox SMG
1.Engage a drive position
2.Turn the ignition key to position 1 or 0. An
acoustic signal sounds if the engine is
switched off while position N is engaged.
Parking brake
The parking brake is designed primarily to pre-
vent the vehicle from rolling when parked. It
operates against the rear wheels.
The indicator lamp lights up. As the
vehicle drives off, an acoustic signal
also sounds. The parking brake has
been applied.
Indicator lamp for Canadian models.
To engage
The detent engages automatically and the indi-
cator lamp in the instrument cluster comes on
when the ignition key is in position 2.

Driving
38
To release
Pull up slightly on the lever, press the button
and lower the lever.
If, in exceptional circumstances, it should
be necessary to engage the parking brake
while the vehicle is in motion, do not pull it with
excessive pressure. Keep the release button on
the parking brake lever pressed down while
pulling up the lever.
Excessive pressure can lead to overbraking and
loss of traction, fishtailing, at the rear axle.
The brake lamps do not come on when the
parking brake is engaged.<
To avoid corrosion and one-sided brak-
ing, apply the parking brake lightly from
time to time when coasting to a standstill at a
traffic signal, for example, provided that it is safe
to do so.<
Manual transmission
6-gear transmission*
When shifting into 5th or 6th gear, press
the gearshift lever to the right. Otherwise,
the engine could be damaged by accidentally
engaging 3rd or 4th gear.<
Reverse
Select only when the vehicle is stationary. Press
the gearshift lever to the left to overcome the
resistance.
As you do this, the backup lamps will come on
automatically when the ignition key is in
position 2.
Automatic transmission with
Steptronic*
In addition to operating the Steptronic as a fully
automatic transmission, you can also shift
gears manually with it, refer to page39.
Selector lever positions
P R N D M/S + —
Available indicators
P R N D SD M1 to M5
The selector lever position is displayed; in the
manual mode, the gear currently engaged is
shown.
Range selection
>The selector lever can be moved out of
position P when the ignition is switched on
or the engine is running: interlock
>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: shiftlock.
Hold the footbrake down until starting off.
The vehicle will otherwise start to move
when a drive position is engaged.

Reference
At a glance
Controls
Driving tips
Mobility
41
Kickdown:
For rapid acceleration, e.g. during passing,
depress the accelerator pedal completely. You
achieve maximum acceleration.
To switch back to sequential mode: tap the
selector lever again to the right toward D, or
change the current gear via the shift paddles or
the selector lever.
When driving off on inclines, drive
smoothly without pausing. Do not keep
the vehicle in place by depressing the accelera-
tor pedal; instead, apply the parking brake. Oth-
erwise, the gearbox could overheat.<
Shifting gears
With selector lever
>To upshift, tap the selector lever toward +
>To downshift, tap the lever toward –.
With shift paddles on steering wheel
>To upshift, pull one of the shift paddles
>To downshift, push the paddle.
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 appro-
priate combination of vehicle speed and
engine rpm. For instance, downshifts that
would result in excessive engine speed
cannot be executed
>During a stop the gearbox is automatically
downshifted into first gear
>Shortly before a gear-dependent minimum
speed is reached, the gearbox automatically
shifts down without you taking any action.
Malfunction
The warning lamp lights up. The trans-
mission system is malfunctioning.
Avoid heavy loads.
All of the selector lever positions can continue
to be engaged; in the forward drive positions,
however, the vehicle will be operating in a
restricted gear range only. Have the system
checked as soon as possible.
Towing and tow-starting, refer to page98;
Jump starting, refer to page97.
Overheating
An acoustic warning signal sounds. The gear-
box is overheating. If possible, stop the vehicle
or drive off swiftly so that the system can cool
off again.
Driving Dynamic Control
Driving Dynamic Control allows your BMW to
react in a sportier driving style at the touch of a
button:
>The engine responds more spontaneously
to any motion of the accelerator pedal
>The vehicle is steered more directly and
traction is enhanced
>Cruise control:
When the speed last stored is called up, this
speed is attained more quickly.
Additional features with SMG:
>Gears are shifted more quickly
>The engine speed range is optimally utilized
in the drive mode.
With automatic transmission:
>The Sport program is activated.

Special operating instructions
68
Special operating instructions
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:
Engine and differential
Up to 1,200 miles/2,000 km:
Drive at varying engine and road speeds, but do
not exceed the following engine or road speed:
4,500 rpm / 4,500/min or 100 mph / 160 km/h.
Obey your local and state maximum speed lim-
its.
Refrain from using full throttle and avoid press-
ing the accelerator beyond the kickdown point.
After you have driven 1,200 miles/2,000 km,
you can gradually increase the engine or road
speeds.
Sequential manual gearbox SMG
Up to 1,200 miles/2,000 km:
Do not use the acceleration assistant during the
break-in period.
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. You should therefore drive with extra
caution during the first 200 miles/300 km.
Obey your local and state maximum speed lim-
its.
When the vehicle is operated on wet or
slushy roads, a wedge of water may form
between the tire and the road surface. This phe-
nomenon is referred to as hydroplaning and can
lead to partial or complete loss of traction, vehi-
cle control and braking effectiveness. Reduce
your speed on wet roads.<
Brake system
Approx. 300 miles/500 km must elapse before
the brake pads and rotors achieve their optimal
surface and wear pattern.
To break in the separate parking brake drums,
apply the parking brake lightly when coasting to
a standstill – at a traffic signal, for instance; use
caution to avoid posing a danger to other road
users.
To avoid corrosion, repeat this procedure from
time to time.
The brake lamps do not come on when the
parking brake is set.
Vacuum for the brake system servo unit
on your BMW is available only when the
engine is running. When you move the car with
the engine off, e.g. by towing, substantially
higher levels of pedal force will be required to
brake the vehicle.<
Clutch
The clutch will achieve its optimal functionality
after approx. 300 miles/500 km. Shift gears
carefully during the break-in period.
After replacing components
Follow the same break-in procedure again if any
of the components mentioned above have to be
replaced in the future.
Driving notes
Close the luggage compartment lid
Operate the vehicle only when the lug-
gage compartment lid is completely
closed, otherwise exhaust fumes could pene-
trate into the interior of the vehicle.<
Should it be absolutely necessary to operate
the vehicle with the luggage compartment lid
open and with the convertible top closed:

Reference
At a glance
Controls
Driving tips
Mobility
69
1.Close all windows
2.Increase the air supply from the air condi-
tioner or automatic climate control to a high
level. Refer to page58 or61.
Hot exhaust system
High temperatures occur with every vehi-
cle equipped with a catalytic converter.
Heat shields are installed adjacent to some sec-
tions of the exhaust system. Never remove
these shields; do not apply undercoating to
their surfaces. When driving, standing at idle
and parking the vehicle, take care to avoid con-
tact between the hot exhaust system and flam-
mable materials, e.g. hay, leaves, grass, etc.
Such contact could lead to a fire, resulting in
serious personal injury and property damage.<
Hydroplaning
When driving on wet or slushy roads,
reduce vehicle speed. If you do not, a
wedge of water may form between the tires and
the road surface. This phenomenon can lead to
partial or complete loss of traction, vehicle con-
trol and braking effectiveness.<
Driving through water
Do not drive through water on the road if it
is deeper than 1 ft/30 cm, and then only at
walking speed. Otherwise, the vehicle's engine,
the electrical systems and the transmission
may be damaged.<
Use the parking brake on inclines
On inclines, keep the vehicle from rolling
by using the parking brake rather than by
slipping the clutch, which would lead to a high
degree of clutch wear.<
Braking safely
Your BMW is equipped with ABS as a standard
feature. If you are in a situation which requires
full braking, it is best to brake using maximum
brake pressure: panic stop. Since the vehicle
maintains steering responsiveness, you can still
avoid possible obstacles with a minimum of
steering effort.Pulsation at the brake pedal combines with
sounds from the hydraulic circuits to indicate to
the driver that ABS is in its active mode.
Wet roads
If the roads are wet or if there is heavy rain, it is
advisable to gently press the brakes for a brief
moment every few miles/kilometers. Watch
traffic conditions to ensure that this maneuver
does not endanger other road users. The
resulting heat dries the brake rotors and brake
pads. Immediate braking force is then available
if necessary.
Inclines
To prevent overheating and, as a result,
diminished braking effectiveness, drive
down long or steep downhill grades in a gear
which requires the least braking. Otherwise,
even light but consistent pedal pressure can
lead to high temperatures, brake wear and pos-
sibly even brake failure.<
The braking power of the engine can be further
enhanced by downshifting the automatic trans-
mission in manual mode, if necessary, into first
gear; refer to pages39 and41. This prevents an
excessive load on the brakes.
Do not coast with the clutch depressed or
with the transmission or selector lever in
Neutral. Do not coast with the engine switched
off. Otherwise, the engine provides no braking
effect while the transmission is in idling posi-
tion, and there is no power-assist for braking or
steering when the engine is off.
Floor mats, floor carpets or other objects must
not be in the area near the brake or accelerator
pedal, as this could impair the movement of the
pedals.<
Corrosion on the brake rotors
Limited vehicle use, extended periods with the
vehicle parked or in storage, and operating con-
ditions in which braking is restricted to gentle,
low-pressure applications will all increase the
tendency for corrosion to form on the rotors and
contamination to accumulate on the brake
pads. This occurs because the minimal pres-

In the engine compartment
88
Checking the coolant level
1.The engine must be at ambient tempera-
ture
2.Open the cap of the expansion tank by turn-
ing it slightly counterclockwise to allow
accumulated pressure to escape, then
open completely
3.The coolant level is correct when the upper
end of the red float is at least even with the
upper edge of the filler neck but no more
than 3/4 in/2 cm above it, that is up to the
second mark on the float. Refer also to the
schematic diagram next to the filler neck
4.Slowly add coolant, if necessary, until the
correct level is reached; do not overfill
5.Turn the cap clockwise until it is tightly
closed
6.Have the cause for the coolant loss
removed as soon as possible.
Brake system
Malfunction
Brake fluid
The warning lamp lights up although
the parking brake is not engaged:
Stop the vehicle immediately.
The brake fluid level in the reservoir is too low.
At the same time, you may notice that brake
pedal travel is longer. Have the system checked
as soon as possible.
If you continue driving, extended pedal
travel may be necessary and braking dis-
tances may be significantly longer. Be sure to
adapt your driving style accordingly. function in Canadian models.
Brake pads
The warning lamp lights up. The brake
pads have worn down to the minimum
safe limit. Have the brake pads
replaced as soon as possible.
For your own safety: use only brake pads
which BMW has approved for your spe-
cific vehicle model. BMW cannot evaluate non-
approved brake pads to determine if they are
suitable for use, and therefore cannot guaran-
tee the operating safety of the vehicle in the
event of their use.<

Giving and receiving assistance
96
Giving and receiving assistance
Receiving assistance
The BMW Group's Mobile Service offers you
24-hour assistance in the event of a breakdown,
even on weekends and holidays.
The telephone number of the Mobile Service
control center in your country is listed in the
Contact brochure.
If your vehicle has the necessary equipment,
you can contact the Mobile Service or issue an
emergency call using buttons in the center con-
sole, behind the parking brake under a cover.
When the emergency call is initiated, a tele-
phone connection is established with the BMW
Assist response center.
If your vehicle is equipped with an activated
BMW Assist and the current location of the
vehicle can be determined, this location is
transmitted to the BMW Assist response cen-
ter.
Requirements for initiating an emergency call or
contacting Mobile Service:
>Ignition key in position 1 or higher
>The car phone must be registered with a
mobile network
>The emergency call system must be opera-
tional.
Access to the buttons
Fold up the cover.
1Emergency call
2Roadside Assistance
Initiating an emergency call*
Press button1 for at least 2 seconds.
The indicator lamp in the button lights up. As
soon as a telephone connection to the BMW
Assist response center has been set up, the
indicator lamp flashes.
If the indicator lamp is flashing but you cannot
hear the emergency call center, you may still be
heard by the emergency call center.
For technical reasons, the emergency call
function cannot be guaranteed in certain
unfavorable conditions.<
If certain requirements are met, an emergency
call is automatically initiated after a serious
accident. The automatic emergency call will not
be hindered by pressing the button.
Roadside Assistance*
Press button2 for at least 2 seconds.
The indicator lamp in the button lights up. As
soon as a telephone connection to the Road-
side Assistance has been set up, the indicator
lamp flashes.
Depending on the country you are in, your vehi-
cle's current location will also be transmitted if
your vehicle is equipped with an activated BMW
Assist function.
Warning triangle*
The warning triangle is stored in the rear lug-
gage compartment panel.

Reference
At a glance
Controls
Driving tips
Mobility
107
Bandages, refer to First-aid
kit97
Bar, towing99
Battery94
– charging95
– disposal95
– indicator lamp12,94
– jump-starting97
– power supply interruption95
– remote control16
Belts, refer to Safety belts30
Belt tensioner, refer to Safety
belts30
Beverage holders64
Blower
– air conditioning59
– automatic climate control62
Blower, refer to Air
supply59,62
BMW5
BMW Maintenance
System89
Bottle holders, refer to
Beverage holders64
Brake fluid88
– filling88
– indicator/warning
lamp13,88
– level88
Brake force display52
Brake hydraulic system88
– indicator/warning
lamp13,88
Brake lamps
– brake force display52
– bulb replacement93
– indicator lamp, defective
lamp13
Brake pads88
– break-in procedures68
– warning lamp88
Brake pad wear indicator
– brake pads88
– warning lamp13
Brake rotors
– brake system69
– break-in procedures68Brakes
– ABS50
– brake fluid88
– brake pads88
– break-in procedures68
– indicator/warning
lamps13,51
– parking brake37
Brake system
– brake fluid88
– brake pads88
– break-in procedures68
– disc brakes69
– indicator lamp13
Breakdown
– Flat Tire Monitor52
Breakdown service, refer to
Mobile Service96
Breaking in the differential,
refer to Engine and
differential68
Break-in procedures68
Bridging, refer to Jump-
starting97
Bulb replacement, refer to
Lamps and bulbs91
Buttons in the multifunction
steering wheel10
C
California laws
– Event Data Recorders90
– Proposition 65 warning6
Can holders, refer to Beverage
holders64
Capacities105
Capacity
– luggage compartment, refer
to Weights103
Car battery94
Car care, refer to the Caring
for your vehicle brochure
Car-care products, refer to the
Caring for your vehicle
brochure
Care, refer to the Caring for
your vehicle brochure
Car keys, refer to Keys16Carpet care, refer to the
Caring for your vehicle
brochure
Car radio, refer to the separate
Owner's Manual
Car telephone, refer to the
separate Owner's Manual
Car wash, refer to the Caring
for your vehicle brochure
Catalytic converter, refer to
Hot exhaust system69
CD changer, refer to Owner's
Manual for Radio/Onboard
Computer
CD operation, refer to Owner's
Manual for Radio/Onboard
Computer
Center high-mount brake
lamp, bulb replacement93
Central locking system16
– interior18
Changes, technical, refer to
For your own safety6
Changing a wheel94
– Run Flat tires94
Charge indicator lamp12,94
Check gas cap, indicator
lamp13
Child-restraint mounting
system, LATCH35
Child-restraint systems33
Child seat, refer to
Installing child-restraint
systems34
Chrome parts, refer to the
Caring for your vehicle
brochure
Cigarette lighter65
Cigarette lighter socket65
Cleaning the rear window,
refer to the Caring for your
vehicle brochure
Cleaning the vehicle, refer to
the Caring for your vehicle
brochure