2005 BMW Z4 ROADSTER 2.5I fuel consumption

Adjustments
32 user by means of a data exchange with the key,
and makes adjustments accordingly.
Colored decals were provided with the keys to
help you distinguish between the different per-
sonal remote control keys.
What the system can do
You can learn about the entire array of features
that Vehicle Memory and Key Memory offer you
at your BMW center. A few examples follow
below:
Examples for Vehicle Memory:
>Various signals as acknowledgement when
locking or unlocking your vehicle: refer to
page17
>Windows are opened automatically, refer to
page20
>Reminder that the key is still in the ignition
switch after the driver's door has been
opened, refer to page37
>Activation/deactivation of the Follow-me-
home function: refer to page56
>Activation/deactivation of daytime driving
lamps: refer to page56
>Sets the units of measure for displaying
time, outside temperature, distance trav-
eled and fuel consumption in the instru-
ment cluster, refer to page48.
Examples for Key Memory:
>Locking of the vehicle when you start off:
refer to page18
>Automatically adjusts the driver's seat to
the personal programmed settings when
the vehicle is unlocked, refer to page29.
You will see this symbol throughout the
Owner's Manual. It is to remind you at
appropriate places of the settings that are avail-
able to you.<
Depending on how the memory functions
are configured, the vehicle may be oper-
ated differently from what is described in the
Owner's Manual. Should you decide to sell your
BMW one day, please remember to have the
memory functions returned to their original fac-
tory settings.<

Everything under control
48 4.Press button1 repeatedly until the required
minutes are set
5.Press button2 to confirm the settings.
The set time of day is transferred to the car
radio display or appears in the instrument clus-
ter display.
Display mode
In ignition key position 0:
Press button1.
The time of day is displayed for several sec-
onds.
Computer*
Mode selection
With the ignition key in position 1 or higher, you
can use the onboard computer button BC in the
turn signal lever to retrieve information from the
computer for display in the instrument cluster.
Every time you tap the onboard computer but-
ton BC, another function is displayed.
The order of the displays:
>Time
>Outside temperature
>Average fuel consumption
>Cruising range
>Average speed.
With the ignition key in position 1 or higher, the
last active setting is displayed.
If you wish, you can have all the displays
of the following functions shown in
another unit of measure.<
Outside temperature
To change the unit of measure, °F/°C
While the temperature display is active, keep
the onboard computer button BC in the turn
signal lever pressed until the display changes.
Ice warning
If the outside temperature drops to approx.
37.57/36, the computer automatically
switches to the outside temperature display.
A signal also sounds and the display flashes for
a short time.
Clock
Setting the 12-hour or 24-hour mode*
If the vehicle is equipped with a computer, you
can have the time displayed in either a 12-hour
or 24-hour mode.
While the time display is active, press the
onboard computer button BC in the turn signal
lever until the display changes.

Reference
At a glance
Controls
Driving tips
Mobility
49
Average fuel consumption
If you press the onboard computer button BC in
the turn signal lever for longer while the average
fuel consumption is being displayed, a new
consumption value is calculated from that point
in time.
Any time spent when the vehicle is stationary
and the engine shut off is ignored in the calcula-
tion.
Cruising range
The computer bases its calculations of the
cruising range on the preceding driving style
and on the remaining fuel in the tank.
It is important that you refuel when the
cruising range falls below approx.
30 miles/50 km. Otherwise, the engine cannot
be guaranteed to operate properly and damage
may result.<
Average speed
If you press the onboard computer button BC in
the turn signal lever for longer while the average
speed is being displayed, a new average speed
value is calculated from that point in time.

In the engine compartment
86
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 antifreeze
agent according to the manufacturer's recom-
mendations.
We recommend that you mix the washer
fluid before adding it to the reservoir.<
Antifreeze agents for the washing sys-
tems are highly flammable. For this rea-
son, keep them away from sources of flame and
store them only in their original containers.
Store them so that they are inaccessible to chil-
dren. Comply with the instructions on the con-
tainers.<
Engine oil
Oil consumption is directly influenced by your
driving style and vehicle operating conditions.
Warning lamp
Engine oil pressure
The warning lamp lights up in red:
The engine oil pressure is too low.
Stop the vehicle immediately and
switch off the engine. Check the engine oil level
and top up if necessary. If the oil level is correct,
please contact the nearest BMW center.Do not continue driving, as the engine
could sustain serious damage from inad-
equate lubrication.<
Engine oil level
The warning lamp lights up in yellow
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 warning lamp lights up in yellow
after the engine has been switched off:
Add engine oil at the earliest opportu-
nity, e.g. when you stop to refuel.
Engine oil sensor
The warning lamp lights up in yellow
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.With the vehicle's engine at normal operat-
ing temperature, i.e. after uninterrupted
driving for at least 6 miles/10 km, park the
vehicle on a level surface
2.Switch off the engine
3.After approx. 5 minutes, pull the dipstick
out and wipe it off with a clean lint-free
cloth, paper towel, or similar material
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

Reference
At a glance
Controls
Driving tips
Mobility
87
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.
The oil volume between the two marks on the
dipstick corresponds to approx. 1.1 quarts/
1 liter.
Do not fill beyond the upper mark on the
dipstick. Excess oil will damage the
engine.<
Adding engine oil
Do not add oil until the oil level has dropped
almost to the lower mark on the dipstick, refer to
page86.
Add oil within the next 30 miles/50 km,
otherwise the engine could be dam-
aged.<
Continuous exposure to used oil has
caused cancer in laboratory tests. For this
reason, thoroughly wash any areas of skin that
come into contact with oil using soap and water.
Always store oils, grease and similar materials
so that they are inaccessible to children. Com-
ply with warning labels and the information on
the containers.<
Comply with the applicable environmen-
tal laws regulating the disposal of used
oil.<
Oil change
Have your oil changed only by a BMW center or
a workshop that works according to BMW
requirements with the appropriately trained
personnel.
Approved engine oils
The quality of the engine oil is extremely impor-
tant for the function and life of an engine. Based
on extensive testing, BMW has approved cer-
tain grades of engine oil.
Use approved High Performance Synthetic Oil.
If you are unable to obtain an approved High
Performance Synthetic Oil, you may use small
volumes of other synthetic oils for topping up
between oil changes. Use only oils with the
specification API SH or higher.
Ask your BMW center for details concern-
ing the specific High Performance Syn-
thetic Oil or synthetic oils that have been
approved.<
You can also call BMW of North America toll-
free at 1-800-831-1117 or visit this website:
www.bmwusa.com to obtain this information.
BMW engines are designed to operate
without oil additives; the use of additives
could even lead to damage in some cases.<
Coolant
Warning lamp
The warning lamp lights up:
The coolant level is too low. Top up the
coolant as soon as possible.
Do not open the cooling system when the
engine is hot. If you do, escaping coolant
can cause burns.<
Coolant consists of water and coolant additives.
Not all commercially available additives are suit-
able for your BMW. Your BMW center knows
which additives are appropriate.
Use only approved additives, as the
engine could otherwise be damaged. The
additives are hazardous to health.<
Comply with the applicable environmen-
tal laws regulating the disposal of coolant
additives.<

Everything from A to Z
106
A
ABS Antilock Brake
System50
– indicator lamp13
Acceleration assistant42
Accessories, refer to
– For your own safety6
– Your individual vehicle5
Accident, refer to Emergency
call96
Acknowledgment signal for
vehicle locking/unlocking16
Activated-charcoal filter63
Adjusting the thigh support29
Air, drying,
refer to Air conditioning
mode59,62
Airbags53
– deactivation33
– indicator lamp12
– passenger airbags indicator
lamp34
– reactivation33
– safe seating position27
Airbag switch33
Air conditioning58
Air conditioning mode
– air conditioning59
– automatic climate control62
Air conditioning mode
switching on/off
manually59,62
Air distribution
– air conditioning59
– automatic climate control62
Airing out, refer to
Ventilation59,63
Air outlets,
refer to Ventilation59,63
Air pressure, refer to Tire
inflation pressure78Air recirculation, refer to
Recirculated air
mode59,62
Air supply/blower
– air conditioning59
– automatic climate control62
AKI, refer to Fuel
specifications76
Alarm system25
– avoiding unintentional
alarms26
All-season tires, refer to
Winter tires81
Antenna, refer to the
Caring for your vehicle
brochure
Antifreeze86,87
– coolant87
– washing fluids86
Antilock Brake System
ABS50
– indicator lamp13
Anti-theft alarm system, refer
to Alarm system25
Anti-theft protection16,25
Approved axle load, refer to
Weights103
Approved engine oils87
Approved gross vehicle
weight, refer to Weights103
Artificial leather, refer to the
Caring for your vehicle
brochure
Ashtray65
Assistant systems,
refer to Dynamic Stability
Control DSC50
AUC Automatic recirculated
air control62Automatic
– air distribution62
– air supply/blower62
– cruise control44
– headlamp control56
– luggage compartment lid
operation19
Automatically dimming
interior rearview mirror31
Automatic car wash, refer to
the Caring for your vehicle
brochure
Automatic climate control61
Automatic recirculated air
control AUC62
Automatic transmission with
Steptronic38
– ignition36
– indicator lamp13
– interlock36
– selector lever lock38
– shiftlock38
– towing the vehicle99
– tow-starting99
AUTO program,
refer to Automatic air
distribution62
Average fuel consumption49
– setting unit of measure48
Average speed49
– setting unit of measure48
Avoiding unintentional
alarms26
Axle loads, refer to
Weights103
B
Backrest, refer to Seat
adjustment28
Backup lamps38
– bulb replacement93
Everything from A to Z
Index

Everything from A to Z
108 Clock47,48
– 12- or 24-hour mode48
– refer to Owner's Manual for
Radio/Onboard Computer
– setting47
Clothes hooks25
Clutch, break-in
procedures68
Cockpit10
Cold start, refer to
Starting the engine36
Compact disc operation, refer
to Owner's Manual for
Radio/Onboard Computer
Compartments64
Computer48
– clock, 12- or 24-hour
mode48
– refer to Owner's Manual for
Onboard Computer
Computer, refer to Onboard
Computer48
Condensation, refer to Air
conditioning mode59,62
Condensation, removing from
windows
– air conditioning60
– automatic climate control62
Configuring settings, refer to
Vehicle Memory,
Key Memory31
Connecting a vacuum cleaner,
refer to Power socket65
Consumption, refer to
Average consumption49
Consumption display, refer to
Fuel gauge46
Contents3
Control elements, refer to
Cockpit10
Controls, lighting, refer to
Instrument lighting57
Convenience operation
– convertible top18
– from outside18
– windows18Convertible top20,21
– care, refer to the Caring for
your vehicle brochure
– convenience operation18
– electrical fault23
– emergency closing23
– fully automatic21
– malfunction23
– manual20
– mechanical20
Convertible top compartment
panel19
Coolant87
– indicator lamp13
– level88
– thermometer46
Coolant water, refer to
Coolant87
Cooling
– maximum62
– refer to Air conditioning
mode59,62
Cooling system, refer to
Capacities105
Copyright2
Correct tires82
Cruise control44
Cruising range49
Cup holders, refer to
Beverage holders64
Curb weight, refer to
Weights103
Cylinders, refer to Engine
data102
D
Dashboard, refer to
Cockpit10
Data, technical102
– capacities105
– dimensions104
– engine data102
– weights103
Daytime driving lamps56
DBC Dynamic Brake
Control50
– warning lamp13,51
Defective bulb56Defrosting rear window
– air conditioning59
– automatic climate control63
Defrosting windows60,62
Defrosting windows and
removing condensation
– air conditioning60
– automatic climate control62
Defrosting windshield, refer to
Defrosting windows60,62
Defrost position, refer to
Defrosting windows60,62
Digital clock47
Dimensions104
Dimming mirrors70
Dipstick, engine oil86
Directional indicators, refer to
Turn signal indicators42
Disc brakes69
Displacement, refer to Engine
data102
Display elements12
Display lighting,
refer to Instrument
lighting57
Displays, refer to Instrument
cluster12
Disposal
– of engine oil87
– vehicle battery95
Distance remaining, refer to
Range49
Door key16
Door lock17
Doors, unlocking and locking
– from inside18
– from outside16,17
DOT quality grades80
Draft-free ventilation59,63
Driving Dynamic Control41
Driving light, refer to Parking
lamps/Low beams56
Driving notes68
– break-in procedures68
– driving tips68
Driving stability control50
Driving stability control
systems50

Everything from A to Z
110 Floor mats, refer to the Caring
for your vehicle brochure
Fluid reservoir, washer
systems86
Fog lamps57
– indicator lamp13
Follow me home lamps56
Footbrake, refer to Driving
notes69
Front airbags53
Fuel
– average
consumption49
– display46
– quality76
– volume, refer to
Capacities105
Fuel display, refer to Fuel
gauge46
Fuel filler door76
– unlocking in case of
electrical fault76
Fuel reserve indicator, refer to
Fuel gauge46
Fuel tank capacity, refer to
Capacities105
Fuses95
G
Gasoline, refer to Fuel
quality76
Gasoline gauge, refer to Fuel
gauge46
Gear indicator
– for automatic transmission
with Steptronic38
– for sequential manual
gearbox SMG40
Gear lever
– automatic transmission with
Steptronic38
– manual transmission38
– sequential manual gearbox
SMG40Gear shifts
– via automatic transmission
with Steptronic38
– via sequential manual
gearbox SMG41
Glove compartment64
Gross weight, refer to
Weights103
H
Handbrake, refer to Parking
brake37
Hands-free microphone,
refer to Preparations for the
cellular phone65
Hands-free system65
Hardtop, refer to the separate
Owner's Manual
Hardtop preparation72
Hazard warning flashers10
Headlamp cover, care, refer to
the Caring for your vehicle
brochure
Headlamp flasher42
– indicator lamp13
Headlamps
– bulb replacement91
– care, refer to the Caring for
your vehicle brochure
– cleaning43
Headlamps, automatic
control56
Headlamp washer
reservoir86
– volume, refer to
Capacities105
Headlamp washer
system
– cleaning the headlamps43
– washing fluids86
Head restraints28
Heated mirrors31
Heated seats30
Heating58
– exterior mirrors31
– rear window59,63
– seats30Heavy loads, refer to Stowing
cargo71
Height, refer to
Dimensions104
Height adjustment
– seats28
– steering wheel31
High beams57
– bulb replacement92
– headlamp flasher42
– indicator lamp13
High Performance
Synthetic Oil87
– alternative oils87
– approved oils87
Holders for beverages64
Hood84
Horn10
Hot exhaust system69
Hydraulic Brake Assistant,
refer to Dynamic Brake
Control DBC50
Hydraulics, brake88
Hydroplaning69
I
Ice warning48
Identification mark
– Run Flat tires82
– tire coding80
Ignition36
Ignition key16
Ignition lock36
Imprint2
Inclines69
Index106