2004 BMW Z4 2.5I belt

Reference
At a glance
Controls
Driving tips
Mobility
57
them to be deactivated, the airbags have to
be deactivated with the vehicle ignition key
and the key switch on the outer passen-
ger's side of the instrument panel. Apart
from passengers, do not place any addi-
tional objects on the passenger seat. Do
not fit seat covers, seat cushion padding,
ball mats or other items to the passenger
seat unless they are specifically recom-
mended by BMW. Do not place any items
under the seat. Otherwise, the function of
the seat occupation detection could be
impaired.<
Indicator lamps
Airbag system operational
The airbag indicator lamp in the instrument
cluster indicates the operational readiness
of the entire airbag system and the safety
belt tensioners as of ignition key position 1.
The indicator lamp goes out after a few
seconds.
The indicator lamp in the central console
signals whether or not the passenger air-
bag system is activated or deactivated as
of ignition key position 1.
This lamp pertains only to the passen-
ger airbag system.<>The indicator lamp goes out after a few
seconds:
The passenger airbags are active, e. g.
when an adult is traveling in the vehicle
or the seat is unoccupied
>The indicator lamp lights up continu-
ously:
The passenger airbags are deactivated,
e. g. when a child is traveling in the vehi-
cle in the child-restraint system.
For more information on the operating prin-
ciple of the passenger airbag system and
seat occupation detection, refer to Auto-
matic deactivation of the passenger air-
bags.
Airbag system malfunction
A system malfunction could prevent
the system from responding in the
expected manner to an impact occurring
within its normal response range.
Please have the airbag system inspected
immediately at a BMW center.<
There is a fault in the airbag system
if the airbag indicator lamp behaves
as follows:
>The indicator lamp does not light up as
of ignition key position 1
>The indicator lamp remains on continu-
ously
>The indicator lamp lights up while the
vehicle is being driven.

Reference
At a glance
Controls
Driving tips
Mobility
77
Tire coding
Understanding the lettering on the tire
sidewall makes it easier to identify and
choose the correct tires.
Tire size
e.g. 225/50 R 16 92 V
Nominal width in mm
Cross-sectional
ratio in %
Radial belt construction
Rim diameter in inches
Load index,
not on ZR tires
Speed code letter,
in front of the R on ZR tires
Speed code letters
Q= up to 105 mph / 160 km/h
T= up to 118 mph / 190 km/h
H= up to 131 mph / 210 km/h
V= up to 150 mph / 240 km/h
W= up to 167 mph / 270 km/h
Y= up to 186 mph / 300 km/h
Tire Identification Number
Tires with DOT codes meet the guidelines
of the U.S. Department of Transportation.
DOT code:
e.g. DOT xxxx xxx 3603
Manufacturer's code
for tire brand
Tire size and
tire version
Tire age
Tire age
The date on which the tire was manufac-
tured is indicated by the code on the side-
wall:
DOT … 3603 indicates that the tire was
manufactured in week 36 of the year 2003.BMW recommends the replacement of all
tires every 6 years at the latest, even if a tire
usage of 10 years is possible.
Uniform Tire Quality Grading
Quality grades can be found where appli-
cable on the tire sidewall between tread
shoulder and maximum section width. For
example:
Treadwear 200 Traction AA
Temperature A
DOT quality grades
Treadwear
Traction AA A B C
Temperature A B C
All passenger car tires must conform
to Federal Safety Requirements in
addition to these grades.<
Tread wear
The tread wear grade is a comparative rat-
ing based on the wear rate of the tire when
tested under controlled conditions on a
specified government test course.
For example, a tire graded 150 would wear
one and one-half, 1 1/2, times as well on
the government course as a tire graded
100. The relative performance of tires
depends upon the actual conditions of their
use, however, and may depart significantly
from the norm due to variations in driving
habits, service practices and differences in
road characteristics and climate.
Traction
The traction grades, from highest to lowest,
are AA, A, B and C.
Those grades represent the tire's ability to
stop on wet pavement as measured under
controlled conditions on specified govern-
ment test surfaces of asphalt and concrete.
A tire marked C may have poor traction
performance.
The traction grade assigned to this
tire is based on straight-ahead brak-
ing traction tests, and does not include
acceleration, cornering, hydroplaning, or
peak traction characteristics.<

Reference
At a glance
Controls
Driving tips
Mobility
91
Please contact a BMW center in case of a
malfunction.
License plate lamps
5 watt bulb
1.Push out the lamp with a suitable object
and remove it
2.Replace the bulb.
Snap the lamp back into place.
Changing a wheel
Run Flat tires
Your BMW is equipped with Run Flat tires.
Therefore, the wheel no longer has to be
changed immediately in the event of a loss
in inflation pressure.
Run Flat tires are labeled on the sidewall
with a circular symbol containing the letters
RSC. Refer to page 80.
BMW recommends that you consult your
BMW center if you wish to replace the tires
of your BMW, or change from summer to
winter tires or vice versa.
Your BMW center knows how to work with
Run Flat tires and is equipped with the nec-
essary special tools.
When mounting or replacing summer
tires with winter tires, or vice versa,
use only Run Flat tires since no spare
wheel is available in the event of a flat.<
Jacking points
The jacking points are located at the posi-
tions indicated in the illustration.
Your BMW center can provide you
with a suitable jack.<
Battery
Maintenance
The battery is completely maintenance-
free. This means that the original electro-
lyte will normally last for the service life of
the battery under moderate climatic condi-
tions.
Please consult your BMW center
whenever you have any questions
concerning the battery.<
Indicator lamp
The indicator lamp for the battery
charge current lights up:
The battery is no longer being
charged. The alternator drive belt is defec-
tive or there is a malfunction in the charging
circuit of the alternator. Please contact the
nearest BMW center.
If the drive belt is defective, pull over
and switch off the engine immediately
to prevent overheating and serious engine
damage.
If the onboard supply voltage drops to a
very low level, increased steering effort
may also be necessary.<

Reference
At a glance
Controls
Driving tips
Mobility
105
Battery 91
– disposal 92
– indicator lamp 13, 91
– jump-starting 94
– remote control 17
Belts, refer to Safety
belts 30
Belt tensioner, refer to
Safety belts 30
Beverage holders 65
Blower
– air conditioning 59
– automatic climate
control 62
Blower, refer to Air
supply 59, 62
BMW 5
Bore, refer to Engine
data 100
Bottle holders, refer to
Beverage holders 65
Brake fluid 85
– filling 85
– indicator/warning
lamp 13, 85
– level 85
Brake force display 53
Brake hydraulic system 85
– indicator/warning
lamp 13, 69, 85
Brake lamps
– bulb replacement 90
– indicator lamp, defective
lamp 13
Brake pads 70
– break-in procedures 68
– indicator lamp 70
Brake pad wear indicator
– brake pads 70
– indicator lamp 13
Brake rotors
– brake system 69
– break-in procedures 68
Brakes 69
– ABS 54
– brake fluid 85
– break-in procedures 68
– indicator/warning
lamps 13, 52, 53, 54
– parking brake 38Brake system 69
– brake fluid level 85
– brake pads 70
– break-in procedures 68
– disc brakes 69
– indicator lamp 13
Breakdown
– Flat Tire Monitor 54
Break-in procedures 68
Bulb replacement, refer to
Lamps and bulbs 88
Buttons in steering
wheel 11
C
California Proposition
65 warning 87
Can holders, refer to
Beverage holders 65
Capacities 103
Car battery 91
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
Cargo loading
– vehicle 70
Car keys, refer to Keys 16
Carpet care, refer to the
Caring for your vehicle
brochure
Car radio, refer to Owner's
Manual for Radio
Car telephone, refer to
Owner's Manual for
Telephone
Car wash, refer to the
Caring for your vehicle
brochure
Catalytic converter, refer to
High temperatures 69
CD player operation, refer
to Owner's Manual
for Radio
Center high-mount brake
lamp
– bulb replacement 90Central locking system 16
– interior 18
Changing a wheel 91
Charge indicator
lamp 13, 91
Check Gas Cap
– indicator lamp 13
Child-restraint mounting
system, LATCH 35
Child-restraint systems 33
Child seat, refer to Child-
restraint systems 33
Chrome parts, refer to the
Caring for your vehicle
brochure
Cigarette lighter 65
Cigarette lighter socket 65
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 windshield 44
Clock 49, 50
– 12- or 24-hour mode 50
– refer to Owner's Manual
for Radio/Onboard
Computer
– setting 49
Clothes hooks 25
Clutch
– break-in procedures 68
Cockpit 10
Cold start, refer to
Starting the engine 36
Compact disc operation,
refer to Owner's Manual
for Radio
Compartments 64
Compression ratio, refer to
Engine data 100
Computer 50
– clock, 12- or 24-hour
mode 50
– refer to Owner's Manual
for Onboard Computer
Computer, refer to
Onboard Computer 50
Condensation, refer to Air
conditioning mode 59, 62

Reference
At a glance
Controls
Driving tips
Mobility
107
Electric Power Steering
EPS 43
– indicator lamp 13
Electric power windows 20
Electronic Stability
Program ESP, refer to
Dynamic Stability Control
DSC 52
Electronic transmission
control module 40
Emergency call 93
Emergency operation, refer
to Manual operation
– convertible top 23
– driver's door 18
– fuel filler door 74
– storage compartments 64
Engine 36
– break-in procedures 68
– data 100
– electronics 13
– indicator lamp 13
– speed 48
– starting 36
– switching off 37
Engine compartment 82
Engine coolant 84
Engine coolant
temperature gauge 48
Engine data 100
Engine oil 83
– alternative oils 84
– approved oils 84
– capacity 103
– indicator lamp 13
Engine oil level 83
– indicator lamp 13
Engine oil pressure 83
– indicator lamp 13
Engine oil sensor 83
– indicator lamp 13
Engine output, refer to
Engine data 100
Engine speed, refer to
Engine data 100
EPS Electric Power
Steering 43
Equipment range, see
Service and Warranty
Information Booklet for US models, Warranty and
Service Guide Booklet for
Canadian models
ESP Electronic Stability
Program, refer to
Dynamic Stability Control
DSC 52
Exhaust system, refer to
High temperatures 69
Exterior mirrors 31
– automatic dimming
feature 31
Eyelet, towing 96
F
False alarm, stopping
alarm 26
Fasten safety belts 30
– warning lamp 13, 30
Filter, refer to
– Microfilter 59
– Microfilter/activated-
charcoal filter 63
Fine wood, refer to the
Caring for your vehicle
brochure
First aid, refer to First-aid
kit 94
First-aid kit 94
Flat tire
– Flat Tire Monitor 54
– indicator/warning
lamp 13
Flat tire, refer to Tire
condition 78
Flat Tire Monitor 54
– indicator lamp 13, 55
– initializing 55
Flooding, refer to Driving
through water 69
Floor covers, carpets, refer
to the Caring for your
vehicle brochure
Floor mats, refer to the
Caring for your vehicle
brochure
Fluid reservoir
– washing systems 83
Fog lamps 47
– indicator lamp 13Follow me home lamps 46
Footbrake, refer to Driving
notes 69
Front airbags 56
Front turn signal indicators
– bulb replacement 90
Fuel
– average
consumption 51
– content, refer to
Capacities 103
– display 48
– preparation, refer to
Engine data 100
– quality 74
Fuel display, refer to Fuel
gauge 48
Fuel filler door 74
– unlocking in case of
electrical fault 74
Fuel gas cap 74
Fuel tank capacity, refer to
Capacities 103
Fuses 92
G
Gasoline, refer to Fuel
quality 74
Gasoline gauge, refer to
Fuel gauge 48
Gear indicator 40
Gear lever
– automatic transmission
with Steptronic 39
– manual transmission 38
Glove compartment 64
Gross weight, refer to
Weights 101
H
Handbrake, refer to Parking
brake 38
Hands-free microphone,
refer to Preparations for
the cellular phone 65
Hands-free system 65
Hardtop, refer to the
separate Owner's Manual
Hardtop preparation 71

Everything from A to Z
108 Hazard warning flashers 10
Headlamp cover, care,
refer to the Caring for
your vehicle brochure
Headlamp flasher 43
– indicator lamp 13
Headlamps
– bulb replacement 88
– care, refer to the Caring
for your vehicle brochure
– cleaning 44
Headlamps, automatic
control 46
Headlamp washer
reservoir 83
– content, refer to
Capacities 103
Headlamp washer
system
– cleaning the
headlamps 44
– washing fluids 83
Head restraints 28
Heated mirrors 31
Heated seats 30
Heating 58
– exterior mirrors 31
– rear window 59, 63
– seats 30
Heavy loads, refer to
Stowing cargo 70
Height, refer to
Dimensions 102
Height adjustment
– seats 28
– steering wheel 30
High beams 47
– bulb replacement 89
– headlamp flasher 43
– indicator lamp 13
High Performance
Synthetic Oil 84
– alternative oils 84
– approved oils 84
High temperatures 69
Holders for beverages 65
Hood 81
Horn 10
Hydraulic Brake Assistant,
refer to Dynamic Brake
Control DBC 52Hydraulics
– brakes 85
Hydroplaning 69
I
Ice warning 50
Identification mark
– Run Flat tires 80
Ignition 36
Ignition key 16
Ignition lock 36
Inclines 69
Index 104
Indicator/warning lamp
– airbags 57
– alarm system 26
– brakes 13
– coolant temperature 49
– DSC 52
– engine temperature 48
– Flat Tire Monitor 55
– fog lamps 47
– passenger airbags 34
– please fasten safety
belts 30
– reserve 48
Indicator and warning
lamps, overview 12
Individual air
distribution 59, 62
Individual settings, refer to
Vehicle Memory,
Key Memory 31
Inflation pressure, tires 75
Inflation pressure
monitoring, refer to Flat
Tire Monitor 54
INSPECTION 49
Instrument cluster 12
Instrument lighting 47
Instrument panel, refer to
Cockpit 10
Interior lamps 47
– remote control 17
Interior motion sensor 26
Interior rearview mirror 31
– automatic dimming
feature 31
Interior temperature
– adjusting 59, 62Interlock, refer to
Steering lock 36
Intermittent
– operation, wipers 44
Interval
– display, service 49
J
Jack 91
Jacking points 91
Jets, refer to
Ventilation 59, 63
Jump-starting 94
K
Key Memory 31
Keys 16
Key switch for passenger
airbags 33
Kickdown 39
Knock control 74
L
Lamps 46
Lamps and bulbs 88
LATCH, child-restraint
mounting system 35
Leather care, refer to the
Caring for your vehicle
brochure
Length, refer to
Dimensions 102
License plate lamps
– bulb replacement 91
Light-alloy wheels, care,
refer to the Caring for
your vehicle brochure
Lighter 65
Lighting
– of the instruments 47
Lighting of the instruments,
refer to Instrument
lighting 47
LIGHTS ON warning 46
Light switch 46
Loads, refer to Cargo
loading 70
Loads, securing 70

Everything from A to Z
110 Outside air mode 59
– air conditioning 59
– automatic climate
control 63
Outside temperature
display 49
– changing units of
measure 50
– in the onboard
computer 50
P
Paintwork, refer to the
Caring for your vehicle
brochure
Parking brake 38
– indicator lamp 13
Parking lamps/Low
beams 46
Parking lock, refer to
Transmission interlock 39
Parts and accessories,
refer to Your individual
vehicle 5
Passenger airbags
– deactivation 33
– reactivation 33
Placing the vehicle in
storage, refer to the
Caring for your vehicle
brochure
Plastic, refer to the Caring
for your vehicle brochure
Pollen, refer to
– Microfilter 59
– Microfilter/activated-
charcoal filter 63
Power convertible top 22
Power output, refer to
Engine data 100
Power seat 29
Power steering, electric 43
Preparations for the cellular
phone 65
Pressure, tires 75
Pressure monitor, tires
– Flat Tire Monitor 54
R
Radio, refer to the Owner's
Manual for Radio
Radio remote control key,
refer to Master key with
remote control 16
Rain sensor 43
Reading lamps 47
Rear turn signal indicators
– bulb replacement 90
Rearview mirror 31
Rear window defroster
– air conditioning 59
– automatic climate
control 63
Recirculated-air mode
– air conditioning 59
– automatic climate
control 63
Recirculating the air, refer
to Recirculated-air
mode 59, 63
Refueling 74
– fuel filler door 74
Releasing
– hood 81
Remaining distance, refer
to Range 51
Remaining distance to next
service 49
Remote control 16
– luggage compartment
lid 17
– malfunctions 17
Replacement key 16
Replacement of tires 79
– changing a tire 79
– changing a wheel 91
Replacing lamps, refer to
Lamps and bulbs 88
Reserve indicator lamp,
refer to Fuel gauge 48
Restraint systems
– for children 35
– refer to Safety belts 30
Reverse
– automatic transmission
with Steptronic 39
– manual transmission 39Rod antenna, refer to the
Caring for your vehicle
brochure
Rope, refer to Towing the
vehicle 96
RSC Runflat System
Component, refer to Run
Flat tires 80
Rubber parts, refer to the
Caring for your vehicle
brochure
Runflat System Component
RSC, refer to Run Flat
tires 80
Run Flat tires 80
– changing a tire 78, 79
– changing a wheel 91
– tire inflation pressure 75
S
Safe seating position 27
– with airbags 27
– with safety belts 27
Safety belts 30
– care, refer to the Caring
for your vehicle brochure
– safe seating position 27
– warning lamp 13, 30
Safety systems, refer to
– Antilock Brake System
ABS 54
– Dynamic Stability Control
DSC 52
Screwdriver, refer to
Onboard tool kit 88
Seat adjustment 28
– mechanical 28
– M Sports seat 29
– power 29
Seat heating 30
Seat memory 29
Seat position, storing 29
Seats 28

Reference
At a glance
Controls
Driving tips
Mobility
111
Securing, locking the
vehicle
– from inside 19
– from outside 17
Securing loads,
refer to Cargo loading 70
Selector lever
– automatic transmission
with Steptronic 39
Selector lever lock, refer to
Shiftlock 39
Selector lever positions
– automatic transmission
with Steptronic 39
Service, see Service and
Warranty Information
Booklet for US models,
Warranty and Service
Guide Booklet for
Canadian models 86
Service and warranty 6
Service interval
display 49, 86
Shifting gears
– automatic transmission
with Steptronic 39
– manual transmission 38
Shiftlock 39
Side airbags 56
Side turn signal indicators
– bulb replacement 90
Signal horn, refer to
Horn 10
Slipstream deflector, refer
to Wind deflector 24
Smokers' package, refer to
Ashtray 65
Snow chains 80
Socket, refer to Cigarette
lighter 65
Socket for Onboard
Diagnostics 87
SOS, refer to Emergency
call 93
Spare fuses 92
Spare key 16
Special oils, refer to
Specified engine oils 84
Special wash program,
refer to the Caring for
your vehicle brochureSpecified engine oils 84
Speed
– winter tires 79
Speedometer 12
Sport program
– automatic transmission
with Steptronic 39
– Driving Dynamic
Control 42
Sports seat 29
Stability control, refer to
– Dynamic Stability Control
DSC 52
Standing lamps 47
Starting 36
– engine 36
Starting assistance
– Dynamic Stability Control
DSC 52
Starting difficulties
– jump-starting 94
– temperature 37
Status of the Owner's
Manual 5
Steering lock 36
Steering wheel 10
– adjusting 30
Steptronic, refer to Manual
mode 39
Storage, tires 79
Storage compartments 64
– electrical fault 64
– opening manually 64
Storage nets 64
Storage space, refer to
Luggage compartment 20
Storage space, refer to
Storage
compartments 64
Storing seat position, refer
to Seat memory 29
Stroke, refer to Engine
data 100
Summer tires, refer to
Wheels and tires 75
Surface ice, refer to Ice
warning 50
Switches, refer to
Cockpit 10
Switch for passenger
airbags 33Switching gears, refer to
Automatic transmission
with Steptronic 39
Switching off
– engine 37
– vehicle 38
Symbols 4
T
Tachometer 48
Tail lamps
– bulb replacement 90
– indicator lamp, defective
lamp 13
Tail lamps, refer to Rear
lamps 90
– bulb replacement 90
Tank capacity, refer to Fuel
tank capacity 103
Tank indicator, refer to Fuel
gauge 48
Technical data 100
Technical modifications,
refer to For your own
safety 5
Telephone, refer to the
separate Owner's Manual
Telephone preparation 65
Temperature
– air conditioning 59
– automatic climate
control 62
– engine 48
Temperature display
– ice warning 50
– outside
temperature 49, 50
– setting units of
measure 50
Tempomat, refer to Cruise
control 45
The BMW Maintenance
System 86
Third brake lamp
– bulb replacement 90
Third brake lamp, refer to
Center high-mount brake
lamp 90
Three-point seat belt, refer
to Safety belts 30