window BMW Z4 2.5I 2005 User Guide

Reference
At a glance
Controls
Driving tips
Mobility
63
By repeatedly pressing the button, you can
select one of three different operating modes.
>Indicator lamps off: outside air flows into the
vehicle
>Left-hand indicator lamp on, AUC mode:
the system detects pollutants in the outside
air and responds by deactivating the out-
side airflow as required. The system then
recirculates the air currently within the vehi-
cle. Depending on air quality requirements,
the system automatically switches between
outside air supply and recirculation of the air
already within the vehicle
>Right-hand indicator lamp on: the flow of
outside air is permanently blocked. The
system recirculates the air already within
the vehicle.
If the windows fog over in the recirculated
air mode, switch this mode off and
increase the air supply as required. Do not use
the recirculated-air mode continuously over a
long period of time as this would otherwise
reduce the air quality in the interior of the vehi-
cle.<
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 airflow 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/activated-charcoal filter
The built-in microfilter removes dust and pollen
from the incoming air. The activated-charcoal
filter provides additional protection by filtering
gaseous pollutants from the outside air. Your
BMW center replaces this combined filter as a
standard part of your scheduled maintenance.
A substantial reduction in airflow indicates that
the filter needs to be replaced earlier.

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-

Giving and receiving assistance
98 positive terminal of the battery or to an aux-
iliary jump-starting terminal of the vehicle to
be jump-started.
Your BMW is equipped with a special nut,
refer also to the engine compartment over-
view on page85
3.With the– jumper cable, connect the nega-
tive terminals of both vehicles.
To do this:
Attach one cable clamp to the negative bat-
tery terminal or to a suitable ground on the
engine or body work of the support vehicle.
Attach the second cable clamp to the nega-
tive battery terminal or to a suitable ground
on the engine or body work of the vehicle to
be jump-started.
Starting the engine
1.Start the engine of the support vehicle and
let it run for several minutes at a slightly ele-
vated engine idle speed
2.Start the engine of the other vehicle as
usual.
If the first start attempt is not successful,
wait a few minutes before another attempt
in order to allow the discharged battery to
recharge
3.Allow the engines to run for several minutes
4.Then disconnect the jumper cables in
reverse sequence
5.Depending on the cause of the fault, have
the battery checked and recharged.
Never use spray starter fluids to start the
engine.<
Towing and tow-starting the
vehicle
Using the towing eyelet
The screw-in towing eyelet is stored in the
onboard tool kit; be sure that it remains in the
vehicle at all times. It can be attached at the
front or rear of your BMW.
Observe the following instructions in
order to avoid damaging the towing eye-
let or the vehicle: use only the towing eyelet
supplied with the vehicle, and screw it in firmly
until it stops. Use the towing eyelet for towing
on paved roads only. Avoid subjecting the tow-
ing eyelet to lateral loads, e.g. do not lift the
vehicle using the towing eyelet.<
Access to the threaded socket
Press out the cover with a screwdriver inserted
in the recess at the top.
Being towed
Make sure that the ignition key is in posi-
tion 1, because the steering lock could
otherwise engage and the vehicle could no
longer be steered. There is no power assist
while the engine is off. Therefore, you will need
to exert more force to brake and steer the vehi-
cle.<
Turn on the hazard warning flashers, if required
by national regulations. If the electrical system
has failed, clearly identify the vehicle being
towed, e.g. by placing a sign or a warning trian-
gle in the rear window.
Vehicles with manual transmission
Gearshift lever in idling position.

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

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

Reference
At a glance
Controls
Driving tips
Mobility
109
Dry air, refer to Air
conditioning mode59,62
DSC Dynamic Stability
Control50
– indicator lamp13,51
DTC Dynamic Traction
Control50
– indicator lamp13,51
Dynamic Brake Control
DBC50
– indicator lamp13
– warning lamp51
Dynamic Stability Control
DSC50
– indicator lamp13,51
Dynamic Traction Control
DTC50
– indicator lamp13,51
E
Electrical fault
– automatic transmission with
Steptronic39
– convertible top23
– door lock18
– driver's door18
– fuel filler door76
– luggage compartment lid18
– SMG41
– storage compartments64
Electric Power Steering
EPS42
– indicator lamp13,42
Electric power windows20
– power loss20
Electronic Stability Program
ESP, refer to
Dynamic Stability Control
DSC50
Electronic transmission
control module39
Emergency call96Emergency operation, refer to
Manual operation
– convertible top23
– doors18
– driver's door18
– fuel filler door76
– luggage compartment lid18
– storage compartments64
Emergency service, refer to
Mobile Service96
Engine36
– break-in procedures68
– data102
– electronics13
– indicator lamp13
– speed46
– starting36
– switching off37
Engine compartment85
Engine coolant87
Engine coolant temperature
gauge46
Engine data102
Engine oil86
– alternative oils87
– approved engine oils87
– capacity105
– indicator/warning lamp13
Engine oil level86
– indicator/warning lamp13
Engine oil pressure86
– indicator/warning lamp13
Engine oil sensor86
– indicator/warning lamp
13
Engine output, refer to Engine
data102
Engine speed, refer to Engine
data102
EPS Electric Power
Steering42
ESP Electronic Stability
Program, refer to Dynamic
Stability Control DSC50
Exhaust system, refer to Hot
exhaust system69
Exterior mirrors31
– automatic dimming
feature70
– folding in and out31Eyelets, towing and tow-
starting98
F
False alarm, refer to
– Avoiding unintentional
alarms26
– Stopping the alarm26
Fasten safety belts
– refer to Safety belts30
– warning lamp12,30
Fault
– automatic transmission39
– luggage compartment lid18
– SMG41
Filter, refer to
– Microfilter59
– Microfilter/activated-
charcoal filter63
Fine wood, refer to the
Caring for your vehicle
brochure
Finger guard system, power
windows20
First aid, refer to First-aid
kit97
First-aid kit97
Flat
– Run Flat tires82
Flat tire
– Flat Tire Monitor52
– indicator/warning lamp13
– Run Flat tires82
Flat tire, refer to
– Changing a wheel94
– Tire condition81
Flat Tire Monitor52
– indicator/warning
lamp13,53
– initializing52
– warning lamp53
Flat tire service, refer to
Mobile Service96
Floods, refer to Driving
through water69
Floor covers, carpets, refer to
the Caring for your vehicle
brochure

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

Reference
At a glance
Controls
Driving tips
Mobility
113
Plastic, refer to the Caring for
your vehicle brochure
Pollen, refer to
– Microfilter59
– Microfilter/activated-
charcoal filter63
Power convertible top21
Power loss
– electric power windows20
Power output, refer to Engine
data102
Power seat29
Power socket65
Power steering, electric42
Power supply interruption
– battery95
Power windows
– initializing20
Power windows protective
function, refer to Trap
protection20
Preparations for the cellular
phone65
Pressure, tires78
Pressure monitoring, tires,
refer to Flat Tire Monitor52
R
Radio, refer to the Owner's
Manual for Radio
Radio navigation, refer to the
separate Owner's Manual
Radio remote control key,
refer to Master keys with
remote control16
Rain sensor43
Reading lamps57
Rear lamps
– bulb replacement93
– indicator lamp, defective
lamp13
Rearview mirror31
Rear window defroster
– air conditioning59
– automatic climate control63
Recirculated air mode
– air conditioning59
– automatic climate control62Recirculating the air, refer to
Recirculated air
mode59,62
Reclining seat, refer to
Seats28
Refueling76
– fuel filler door76
Releasing
– hood84
Remaining distance, refer to
Range49
Remaining distance to next
service47
Remote control16
– luggage compartment lid17
– malfunction17
Replacement key16
Replacement key, refer to
New keys16
Replacement of tires82
– changing a wheel94
– new wheels and tires82
Replacing lamps, refer to
Lamps and bulbs91
Restraint systems
– for children35
– refer to Safety belts30
Reverse
– automatic transmission with
Steptronic39
– manual transmission38
Reverse gear
– sequential manual gearbox
SMG40
Rod antenna, refer to the
Caring for your vehicle
brochure
Rope, refer to Towing and
tow-starting98
RSC Runflat System
Component, refer to Run
Flat tires82
Rubber parts, refer to the
Caring for your vehicle
brochure
Runflat System Component
RSC, refer to Run Flat
tires
82Run Flat tires82
– changing a tire81,82
– changing a wheel94
– flat tire53
– tire inflation pressure78
– winter tires82
S
Safe seating position27
– with airbags27
– with safety belts27
Safety belts30
– care, refer to the Caring for
your vehicle brochure
– safe seating position27
– warning lamp12,30
Safety systems, refer to
– Airbags53
– Antilock Brake System
ABS50
– Dynamic Stability Control
DSC50
Safety tires, refer to Run Flat
tires82
Screwdriver, refer to Onboard
tool kit91
Seat adjustment28
– mechanical28
– M Sports seat29
– power29
Seat heating30
Seat memory29
Seat position, storing29
Seats28
– adjusting the sports seat29
– heating30
– memory, refer to Seat
memory29
– power adjustment29
– safe seating position27
– storing positions29
Securing, locking the vehicle
– from inside18
– from outside17
Securing loads,
refer to Cargo loading71

Reference
At a glance
Controls
Driving tips
Mobility
115
Tire inflation pressure
– checking78
– restoring78
Tire pressure monitoring,
refer to Flat Tire Monitor52
Tires
– age80
– break-in procedures68
– changing82
– condition81
– damage81
– DOT quality grades80
– flat53
– inflation pressure78
– replacement82
– Run Flat tires82
– size78
– storage83
– temperature81
– traction80
– tread81
– tread wear80
– tread wear indicators, refer
to Tire tread, Wheel/tire
damage81
– Uniform Tire Quality
Grading80
– winter tires82
Tire storage83
Tool kit, refer to Onboard tool
kit91
Torque, refer to Engine
data102
Tow bar99
Towing98
– with sequential manual
gearbox SMG99
Towing eyelets98
Towing the vehicle98
– with automatic
transmission99
– with the front axle raised99
Tow rope99
Tow sockets for towing
eyelet98
Tow-starting98,99
Track width, refer to
Dimensions104Traction control, refer to
Dynamic Stability Control
DSC50
Transmission
– automatic transmission with
Steptronic38
– manual transmission38
– sequential manual gearbox
SMG40
Transmission detent, refer to
Range selection38
Transmission malfunction,
refer to Malfunction39
Transporting children
safely33
Transport securing device,
refer to Cargo loading71
Tread depth, refer to Tire
tread81
Tread wear indicators
in the tires, refer to
Tire tread, Wheel/tire
damage81
Trip distance recorder, refer to
Trip odometer46
Trip meter, refer to Trip
odometer46
Trip odometer46
Trunk
– refer to Luggage
compartment19
Trunk lid
– opening via remote
control17
– refer to Luggage
compartment lid18
Trunk lid, refer to Luggage
compartment lid18
Trunk volume, refer to
Luggage compartment
capacity103
Turning circle, refer to
Dimensions104
Turn signal indicators42
– indicator lamp13Turn signal indicators, bulb
replacement
– front93
– rear93
– side93
TV function, refer to Owner's
Manual for Onboard
Computer
U
Undercoating, refer to the
Caring for your vehicle
brochure
Units
– average
consumption48
– average
speed48
– temperature48
Unlocking
– from inside18
– from outside16
Used batteries, refer to
Battery disposal95
V
Vehicle
– battery94
– breaking in68
– care, refer to the Caring for
your vehicle brochure
– cargo loading70
– cleaning the rear window,
refer to the Caring for your
vehicle brochure
– engine37
– leaving the vehicle37
– measurements, refer to
Dimensions104
– parked70
– storage, refer to the Caring
for your vehicle brochure
– washing, refer to the Caring
for your vehicle brochure
– weight103
Vehicle battery94
Vehicle Memory31

Everything from A to Z
116 Ventilation59,63
– air conditioning59
– automatic climate control63
Vents, refer to
Ventilation59,63
Volume
– fuel tank, refer to
Capacities105
W
Warning and indicator
lamps12
Warning triangle96
Warranty, refer to Service and
Warranty Information
Booklet for US models,
Warranty and Service Guide
Booklet for Canadian
models89
Warranty and service7
Washer/wiper system43
Washer fluid reservoir, refer to
– Capacities105
– Headlamp washer system
and Windshield washer
system86
Washer jets, refer to
Windshield washer
nozzles44
Washing fluids86
Washing systems86
Waste tray, refer to Ashtray65
Water on roads, flooding69
Weights103
Wheel/tire combinations82
Wheelbase, refer to
Dimensions104
Wheels and tires78
Width, refer to
Dimensions104
Wind deflector24
Window defrosting, refer to
Defrosting windows
– air conditioning60
– automatic climate control62
Windows
– convenience operation18
Windshield washer nozzles44Windshield washer
reservoir86
– volume, refer to
Capacities105
Windshield washer system
– washer/wiper system43
– washing fluids86
Windshield wiper blades
– care, refer to the Caring for
your vehicle brochure
– changing91
Windshield wipers
– changing91
– refer to Washer/wiper
system43
Winter tires82
– changing94
– condition81
– storage83
Wood decoration, refer to the
Caring for your vehicle
brochure
Work in the engine
compartment84
Wrench, refer to Onboard tool
kit91
X
Xenon lamps, bulb
replacement92