air condition BMW Z4 3.0SI ROADSTER 2007 E85 User Guide

Wheels and tires
84
Wheels and tires
Tire inflation pressure
Information for your safety
It is not merely the tire's service life, but also
driving safety and driving comfort that largely
depend on the condition of the tires and the
maintenance of the specified tire pressure.
Check tire inflation pressures regularly
and correct them if necessary: at least
every two weeks and before every extended
journey. If you fail to observe this precaution
you may be driving on tires with incorrect tire
pressures, a condition that can not only com-
promise your vehicle's driving stability, but also
lead to tire damage and the risk of an accident.
Do not drive with deflated, i.e. flat tires, except
when using Run-Flat Tires. A flat tire will seri-
ously impair your vehicle's handling and braking
response. Attempts to drive on a flat tire can
lead to loss of control over the vehicle.<
Checking pressure
Check the tire inflation pressures only when the
tires are cold. This means after a maximum of
1.25 miles/2 km driving or when the vehicle has
been parked for at least 2 hours. Warm tires
have higher inflation pressures.
Inflation pressure specifications
The specified inflation pressures for your stan-
dard tires are provided on the placard on the
B-pillar and are visible when the driver's door is
open.After the tire inflation pressure is cor-
rected, initialize the Flat Tire Monitor
*,
refer to page53, or reset the Tire Pressure
Monitor
*, refer to page54.<
The following tire inflation pressure tables show
the inflation pressures for the specified tire
sizes at ambient temperature.
The inflation pressures in the table apply
to BMW-approved tire sizes and recom-
mended tire brands. Your BMW center will be
glad to supply this information.<
To determine the correct tire inflation pressure
for your tires, refer to the following tables.
Tire size
The inflation pressures in the table apply to
BMW-approved tire sizes and recommended
tire brands. Your BMW center will be glad to
supply this information.

Wheels and tires
88 the letters TWI, for Tread Wear Indicator, on the
tire's sidewalls identify tires that incorporate
these wear indicators. Once the tire tread has
worn down to the wear indicators, the tire has
worn to a depth of 1/16 in/1.6 mm.
Wheel/tire damage
Due to low-profile tires, please note that
wheels, tires and suspension parts are
more susceptible to road hazards and conse-
quential damages.<
Unusual vibrations encountered during normal
vehicle operation can indicate tire failure or
some other vehicle malfunction. This can, for
example, be caused by driving over curbs. The
same applies to any other abnormal road
behavior, such as pulling severely to the right or
left.
In these cases, reduce speed immedi-
ately and have wheels and tires thor-
oughly checked. To do so, drive carefully to the
nearest BMW center or tire shop that works
according to BMW repair procedures with cor-
respondingly trained personnel. If necessary,
have the vehicle towed there.
Tire damage can be extremely dangerous for
vehicle occupants and other road users.<
Tire age
For various reasons, such as the development
of brittleness, BMW recommends tire replace-
ment after no more than 6 years, regardless of
the actual wear of the tires.
The date on which the tire was manufactured is
indicated by the code on the sidewall:
DOT … 5005 indicates that the tire was manu-
factured in week 50 of the year 2005.
Run-Flat Tires
The symbol identifying Run-Flat Tires is a circle
with the letters RSC on the sidewall.
Run-Flat Tires comprise a conditionally self-
supporting tire and a special rim. The reinforce-
ment in the sidewalls ensures that the tire can
continue to be used subject to certain restric-
tions, even if depressurized.
To continue driving with a damaged tire:
>If the vehicle is equipped with the Flat Tire
Monitor, refer to Flat tire warning on
page53.
>If the vehicle is equipped with the Tire Pres-
sure Monitor, refer to Warning of low tire
inflation pressure on page54.
Wheel and tire replacement
Have new wheels and tires installed only
by your BMW center or tire shop that
works according to BMW repair procedures
with correspondingly trained personnel. Work
that is improperly carried out could result in
consequential damage and pose safety haz-
ards. Make sure that the new wheels are bal-
anced.<
Retreaded tires
BMW advises against using retreaded
tires, since driving safety may be
impaired. The causes for this include potentially
different tire casing structures and often wide
variations in tire age, which can result in a lim-
ited service life.<

Reference
At a glance
Controls
Driving tips
Mobility
89
Correct wheels and tires
BMW recommends using only wheels
and tires that have been approved by
BMW for your particular vehicle model, other-
wise body contact and serious accidents can
result despite the use of the same nominal size,
e.g. due to manufacturing tolerances. If non-
approved wheels and tires are used, BMW can-
not evaluate their suitability, and therefore can-
not be held liable for driving safety.<
You can inquire about the correct wheel/tire
combination at your BMW center.
The correct combination of wheels and tires is
also necessary to ensure reliable operation of
various vehicle systems such as ABS and DSC.
To maintain good handling and vehicle
response, only use tires of a single brand and
tread configuration. After a tire has been dam-
aged, for instance, mount the original wheel and
tire combination again as soon as possible.
Wheels with electronics for the Tire
Pressure Monitor TPM
When mounting new tires or changing from
summer to winter tires or vice versa, only use
wheels with TPMS electronics; otherwise the
Tire Pressure Monitor would not be able to
detect a flat tire, refer to page54. Your BMW
center will be glad to provide you with more
information.
Recommended tire brands
Certain makes of tire are recommended by
BMW for each tire size. They are marked with a
clearly visible BMW designation on the sidewall
of the tire.When properly used, these tires meet the high-
est standards in terms of safety and handling
characteristics.
Run-Flat Tires
When mounting new tires or changing over
from summer to winter tires and vice versa,
mount Run-Flat Tires for your own safety. In the
event of a flat, moreover, no spare wheel is
available. Your BMW BMW center will be glad to
provide you with more information.
For safety reasons, BMW recommends
that damaged Run-Flat Tires be replaced
rather than repaired.<
Special characteristics of winter tires
BMW recommends the use of winter tires for
operation under winter road conditions. While
all-season tires with M+S designation provide
better winter traction than summer tires, they
generally do not achieve the full performance of
winter tires.
Pay attention to speed
Always comply with the speed limit for the
winter tires mounted on your car; failure
to do so could result in tire damage and acci-
dents.<
If the car is capable of speeds higher than that
permitted for the winter tires, a label stating the
maximum permitted speed for the mounted
tires must be displayed in your field of view.
Specialist tire dealers and your BMW center
can supply these labels.
Storage
Store tires in a cool, dry place, protecting them
against light whenever possible. Protect the
tires from contact with oil, grease and fuel. Do
not exceed the maximum tire inflation pressure
indicated on the sidewall of the tire.
Swapping wheels between the axles
BMW advises against moving the front wheels
to the rear wheel positions and vice versa, as
this may impair vehicle handling characteristics.

Under the hood
92
Important parts in the engine compartment
1Washer fluid reservoir for headlamp clean-
ing system and window washer system,
refer to page46
2Filler neck for engine oil, refer to Adding
engine oil3Jump-starting connection, refer to
page104
4Reservoir for brake fluid, refer to page95
5Body ground, negative terminal, refer to
page105
6Expansion tank for coolant, refer to page94
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 your nearest BMW center or a
workshop that works according to BMW repair
procedures with correspondingly trained per-
sonnel.Do not continue driving, otherwise the
engine could sustain serious damage
from inadequate lubrication.<
Engine oil level
The warning lamp lights up in yellow
while you are driving. In addition, a sig-
nal sounds and "+1.0" appears in the
instrument cluster, refer to page93.
The oil level is at the absolute minimum; refill as
soon as possible. Do not drive more than
125 miles/200 km before refilling.
The warning lamp comes on in yellow
after the engine is switched off. A signal
also sounds.

Maintenance
96
Maintenance
BMW Maintenance System
The BMW Maintenance System helps maintain
the road safety and operating reliability of your
BMW.
Regular maintenance is not only necessary for
the safety of your vehicle, but also plays a sig-
nificant role in maintaining the resale value of
your vehicle.
Service interval display
The BMW Maintenance System takes the vehi-
cle's operating conditions into account for the
service intervals:
From a maintenance point of view,
62,100 miles/100,000 km accumulated in
short-distance urban driving are not the same
as 62,100 miles/100,000 km accumulated at
moderate cruising speeds in long-distance
highway travel.
The BMW Maintenance System includes the
Engine Oil Service and Inspections I and II.
Determining the maintenance intervals based
on the actual loads on the vehicle covers every
kind of operating situation. Minimal use drivers,
who drive fewer than about 6,210 miles/
10,000 km per year, should nevertheless have
the oil changed at least every 2 years since
engine oil deteriorates over time, regardless of
use.
Service and Warranty Information
Booklet for US models and Warranty
and Service Guide Booklet for
Canadian models
Please consult your Service and Warranty Infor-
mation Booklet for US models and Warranty
and Service Guide Booklet for Canadian models
for additional information on service require-
ments.
BMW recommends that you have service
and repair operations performed at your
BMW center.
Take the time to ensure that these service pro-
cedures are confirmed by entries in your vehi-
cle’s Service and Warranty Information Booklet
for US models and Warranty and Service Guide
Booklet for Canadian models. These entries
verify that your vehicle has received the speci-
fied regular maintenance.<
Socket for On-Board
Diagnosis OBD
Vehicle components that are relevant to the
composition of exhaust emissions can be
checked with a device via the OBD socket.
This socket is located on the driver's side to the
left, on the bottom of the instrument panel
underneath a cover.

Replacing components
102
Jacking points
The jacking points are located at the positions
indicated in the illustration.
Vehicle battery
Maintenance
The battery is completely maintenance-free.
This means that the original electrolyte will nor-
mally last for the service life of the battery under
moderate climatic conditions. Your BMW cen-
ter will be happy to advise you if you have any
questions concerning the battery.
Indicator lamp
The indicator lamp lights up:
The battery is no longer being charged.
The alternator drive belt is defective or
there is a malfunction in the charging circuit of
the alternator. Have the system checked as
soon as possible.
If the drive belt is defective, pull over and
switch off the engine immediately to pre-
vent overheating and serious engine damage.
If the onboard supply voltage drops to a very
low level, increased steering effort may also be
necessary.<
Charging the battery
Charge the battery in the vehicle only when the
engine has been switched off. Connections,
refer to Jump-starting on page104.
Battery disposal
After changing a battery, have the used
battery disposed of by your BMW center or bring it to a recycling point. Maintain the bat-
tery in an upright position for transport and stor-
age. Secure the battery against tilting when
transporting.<
Power loss
After a temporary power loss, the functioning of
some equipment may be limited and require ini-
tialization. Individual settings are also lost and
must be reset:
>Seat memory
The positions must be stored again, refer to
page32.
>Clock must be reset, refer to page49.
Fuses
Do not attempt to repair a burned fuse or
replace it with a fuse having a different
color or amperage rating. To do this could
cause a fire in the vehicle as a result of circuit
overload.<
You will find the fuses and information on their
respective allocation behind the glove compart-
ment.
1.Open the glove compartment.
2.Press the lock on the left, arrow1.
3.Press the lock on the right, arrow2.
4.Swing the glove compartment down.
Spare fuses and plastic tweezers for grasping
the fuses are found in the onboard tool kit; refer
to page98.

Everything from A to Z
116
Everything from A to Z
Index
A
ABS Antilock Brake
System51
– indicator lamp12
Accident, refer to Emergency
call103
Acknowledgment signal for
locking/unlocking vehicle19
Activated-charcoal filter for
automatic climate control67
Additives
– coolant94
– engine oil94
Adjusting
– seats30
Adjusting the thigh support32
Airbags56
– deactivating37
– indicator/warning lamp13
– passenger airbags indicator
lamp37
– reactivation37
– safe seating position30
Airbag switch, refer to Key
switch for passenger
airbags36
Air conditioning62
Air-conditioning operation,
refer to Cooling
function63,66
Air distribution
– air conditioning63
– automatic66
– automatic climate control66
– individual63,66
– manual66
Air flow rate
– air conditioning63
– automatic climate control66
Airing out, refer to
Ventilation63,67Air outlets, refer to
Ventilation63,67
Air pressure, refer to Tire
inflation pressure84
Air recirculation, refer to
Recirculated-air
mode63,67
AKI, refer to Fuel
specifications83
Alarm system23
– avoiding unintentional
alarms24
– interior motion sensor24
– switching off an alarm24
– tilt alarm sensor24
All-season tires, refer to
Winter tires87,89
Ambient air, refer to
Recirculated-air
mode63,67
Ambient temperature
display48
Antenna, refer to the Caring
for your vehicle brochure
Antifreeze46,94
– coolant94
– washer fluids46
Antilock Brake System
ABS51
– indicator/warning lamp12
– indicator lamp13
Anti-theft alarm system, refer
to Alarm system23
Anti-theft protection19,23
Approved engine oils94
Artificial leather, refer to the
Caring for your vehicle
brochure
Ashtray69
Assistance systems, refer to
Driving stability control
systems51AUC Automatic recirculated-
air control67
Audio device, external68
Automatic
– air distribution66
– air flow rate66
– cruise control46
– headlamp control59
– luggage compartment lid
operation22
– recirculated-air control
AUC67
– tailgate operation21
Automatic car wash, refer to
the Caring for your vehicle
brochure
Automatic climate control65
Automatic convertible top27
Automatic lamps59
Automatic transmission with
Steptronic42
– indicator lamp13
– interlock40,42
– selector lever43
– selector lever lock42
– shiftlock42
– shift paddles on steering
wheel43
– towing the vehicle106
– tow-starting106
AUTO program for automatic
climate control66
AUX-In jack68
Average fuel consumption50
– setting unit of measure50
Average speed50
– setting unit of measure50
Avoiding unintentional
alarms24
Axle loads, refer to
Weights113

Everything from A to Z
118 Central locking
– from inside21
Central locking system19
Changes, technical, refer to
For your own safety5
Changing a wheel101
– Run-Flat Tires101
Charge indicator lamp12,102
Check gas cap, indicator
lamp13
Child-restraint mounting
system, LATCH38
Child-restraint systems37
Child seat, refer to Installing
child-restraint systems37
Chrome parts, refer to the
Caring for your vehicle
brochure
Cigarette lighter69
Cleaning the rear window,
refer to the Caring for your
vehicle brochure
Cleaning the vehicle, refer to
the Caring for your vehicle
brochure
Cleaning the windows
– automatically, refer to Rain
sensor45
– reservoir capacity114
– spray nozzles46
– washer/wiper system45
– washer fluid46
– washer fluid reservoir46
Clock49
– 12h/24h mode50
– onboard computer50
– setting50
– setting, refer also to Owner's
Manual for Radio/Onboard
Computer
Clothes hooks70
Cockpit10
Cold start, refer to Starting the
engine40
Combination, wheel/tire88
Comfort area, refer to Around
the center console14Compact disc operation, refer
to Owner's Manual for
Radio/Onboard Computer
Computer50
– button BC50
– clock, 12h/24h mode50
– refer to Owner's Manual for
Onboard Computer
Computer, refer to the
separate Owner's Manual
Condensation, refer to When
the vehicle is parked76
Condensation, removing from
windows
– air conditioning63
– automatic climate control66
Configuring settings, refer to
Vehicle Memory, Key
Memory18
Connecting vacuum cleaner,
refer to Connecting
electrical appliances71
Consumption, refer to
Average fuel
consumption50
Consumption display, refer to
Fuel gauge48
Controls, refer to Cockpit10
Convenience operation
– convertible top20
– from outside20
– windows20
Convertible top25,27
– care, refer to the Caring for
your vehicle brochure
– convenience operation20
– electrical fault28
– emergency closing28
– fully automatic27
– malfunction28
– manual25
– mechanical25
Convertible top compartment
panel23
Coolant94
– checking level94
– indicator lamp13
– thermometer49
Coolant temperature49Coolant water, refer to
Coolant94
Cooling
– maximum66
– refer to Switching cooling
function on/off63,66
Cooling fluid, refer to
Coolant94
Cooling function
– air conditioning63
– automatic climate control66
Cooling system, refer to
Capacities114
Cooling system, refer to
Coolant94
Copyright2
Correct tires89
Cruise control46
Cruising range50
Cup holders, refer to
Beverage holders69
Curb weight, refer to
Weights113
Cylinders, refer to Engine
data110
D
Dashboard, refer to
Cockpit10
Dashboard lighting, refer to
Instrument lighting60
Data, technical
– capacities114
– dimensions111,112
– engine110
– measurements111,112
– weights113
Daytime running lamps59
DBC Dynamic Brake
Control51
– indicator/warning lamp13
Deadlocking, refer to
Locking19
Defective bulb59
Defrosting, windows63,66
Defrosting the windshield,
refer to Defrosting
windows63,66

Reference
At a glance
Controls
Driving tips
Mobility
119
Defrosting windows and
removing condensation
– air conditioning63
– automatic climate control66
Defrost position, refer to
Defrosting windows63,66
Dehumidifying air, refer to
Switching cooling function
on/off63,66
Digital clock49
Dimensions111,112
Dimming mirrors34
Directional indicators, refer to
Turn signal indicators44
Disc brakes75
Displacement, refer to Engine
data110
Display elements, refer to
Instrument cluster12
Display lighting, refer to
Instrument lighting60
Displays, refer to Instrument
cluster12
Displays and controls10
Disposal
– coolant94
– vehicle battery102
Distance remaining, refer to
Cruising range50
Door keys, refer to The key
set18
Door lock20
Doors, unlocking and locking
– acknowledgment
signals19,20
– from inside21
– from outside19
DOT quality grades86
Draft-free ventilation63,67
Drive-off assistance, refer to
Dynamic Stability Control
DSC51
Drive-off assistant52
Driving light, refer to Parking
lamps/Low beams59
Driving notes74
Driving off on uphill gradients,
refer to Drive-off
assistant52Driving stability control
systems51
Driving through water75
Driving tips, refer to Driving
notes74
Dry air, refer to Switching
cooling function on/
off63,66
DSC Dynamic Stability
Control51
– indicator/warning lamp51
– indicator lamp13
DTC Dynamic Traction
Control51
– indicator/warning
lamp13,52
Dynamic Brake Control
DBC51
– indicator/warning lamp13
Dynamic Driving Control44
Dynamic Stability Control
DSC51
– indicator/warning lamp51
Dynamic Traction Control
DTC51
– indicator/warning lamp52
E
EBV Electronic brake-force
distribution51
Electric
– seat adjustment31
Electrical malfunction
– automatic transmission with
Steptronic43
– convertible top28
– door lock20
– fuel filler door82
– luggage compartment lid22
– tailgate22
Electric Power Steering
EPS56
– indicator/warning
lamp13,56
Electric power windows24
Electronic
– brake-force distribution51
– oil level check93Emergency call103
– button103
Emergency operation, refer to
Opening manually
– tailgate22
Emergency release23
Emergency services, refer to
Roadside Assistance103
Engine40
– break-in period74
– electronics13
– indicator lamp13
– overheated, refer to Coolant
thermometer49
– speed48
– starting40
– switching off41
– temperature49
Engine compartment92
Engine coolant, refer to
Coolant94
Engine oil92
– adding94
– additives, refer to Approved
engine oils94
– approved engine oils94
– BMW Maintenance
System96
– change intervals, refer to
Service and Warranty
Information Booklet for US
models, Warranty and
Service Guide Booklet for
Canadian models
– change intervals, refer to
Service interval display49
– checking level93
– indicator/warning lamp12
– oil grades, refer also to
Approved engine oils94
– oil level92
– pressure92
Engine output, refer to Engine
data110
Engine starting, refer to
Starting the engine40
EPS Electric Power
Steering56

Everything from A to Z
120 Equipment scope, refer to the
Service and Warranty
Information Booklet for US
models, Warranty and
Service Guide Booklet
ESP Electronic Stability
Program, refer to DSC
Dynamic Stability
Control51
Event Data Recorders97
Exhaust system, refer to Hot
exhaust system74
Exterior mirrors34
– adjusting34
– automatic dimming
feature34
– automatic heating34
– folding in and out34
External audio device68
Eyeglasses compartment69
Eyes, tow-starting and towing
away105
F
False alarm
– refer to Avoiding
unintentional alarms24
– refer to Switching off an
alarm24
Fasten safety belts, refer to
Safety belts33
Filter
– refer to Microfilter64
– refer to Microfilter/activated-
charcoal filter67
Fine wood, refer to the Caring
for your vehicle brochure
First aid, refer to First-aid
kit104
First-aid kit104
Flat tire
– Flat Tire Monitor53
– refer to Changing a
wheel101
– refer to Tire condition87
– Run-Flat Tires88
– Tire Pressure Monitor54Flat Tire Monitor FTM53
– flat tire warning53
– indicator/warning lamp53
– initializing the system53
– snow chains90
– system limits53
Floods, refer to Driving
through water75
Floor covers, carpets, refer to
the Caring for your vehicle
brochure
Floor mats, refer to the Caring
for your vehicle brochure
Fog lamps60
– indicator lamp13
Footbrake, refer to Braking
safely75
For your own safety5
Front airbags56
FTM, refer to Flat Tire
Monitor53
Fuel
– average consumption50
– capacity, refer to
Capacities114
– display48
– quality83
– refer to Average fuel
consumption50
– refer to Fuel
specifications83
– tank capacity83
Fuel display, refer to Fuel
gauge48
Fuel filler door, refer to Gas
cap82
Fuel level
– refer to Fuel tank capacity83
Fuel tank capacity, refer to
Capacities114
Fully automatic convertible
top
27
Fuses102
G
Gas cap82
Gasoline, refer to Fuel
specifications83Gasoline gauge, refer to Fuel
gauge48
Gear indicator, automatic
transmission with
Steptronic42
Gear lever
– automatic transmission with
Steptronic42
– manual transmission42
Gearshifts
– automatic transmission with
Steptronic42
– manual transmission42
Glove compartment68
Gross weight, refer to
Weights113
H
Halogen lamps
– replacing bulbs99
Handbrake, refer to Parking
brake41
Hands-free microphone71
Hardtop, refer to the separate
Owner's Manual
Hardtop preparation77
Hazard warning flashers14
Headlamp control,
automatic59
Headlamp flasher44
– indicator lamp12
Headlamps
– bulb replacement99
– care, refer to the Caring for
your vehicle brochure
– cleaning45
– cleaning system, washer
fluid46
– cover99
– glass, care, refer to the
Caring for your vehicle
brochure
– washer reservoir, refer to
Washer fluid reservoir46
– washer reservoir volume,
refer to Capacities114