2004 BMW Z4 2.5I maintenance schedule

Reference
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Mobility

5

Your individual vehicle

On buying your BMW, you have decided in
favor of a model with individualized equip-
ment and features. This Owner's Manual
describes all models and equipment that
BMW offers within the same group.
We hope you will understand that equip-
ment and features are included which you
might not have chosen for your vehicle. Any
differences can easily be identified since all
optional accessories and special equip-
ment are marked with an asterisk

*
.
If your BMW features equipment not
described in this Owner's Manual, for
example a car radio or telephone, supple-
mentary Owner's Manuals are enclosed.
We ask that you read these manuals as
well.

Status of the Owner's
Manual

BMW pursues a policy of continuous,
ongoing development that is conceived to
ensure that our vehicles continue to
embody the highest quality and safety
standards combined with advanced, state-
of-the-art technology. For this reason, the
features described in this Owner's Manual
could differ from those on your vehicle. Nor
can errors and omissions be entirely ruled
out. You are therefore asked to appreciate
that no claims can be entertained on the
basis of the data, illustrations or descrip-
tions in this manual.

For your own safety

Fuels

Use unleaded gasoline only. Fuels
containing up to and including 10 %
ethanol or other oxygenates with up to
2.8 % oxygen by weight, i.e. 15 % MTBE or
3% methanol plus an equivalent amount of
co-solvent, will not void the applicable war-
ranties respecting defects in materials or
workmanship. Field experience has indi-
cated significant differences in fuel quality,
i.e. volatility, composition, additives, etc.,
among gasolines offered for sale in the
United States and Canada. The use of poor
quality fuels may result in driveability, start-
ing and stalling problems especially under
certain environmental conditions, such as
high ambient temperature and high alti-
tude.
Should you encounter driveability prob-
lems that you suspect could be related to
the fuel you are using, we recommend that
you respond by switching to a recognized
high-quality brand.
Failure to comply with these recommenda-
tions may result in unscheduled mainte-
nance.
Follow the relevant safety rules when you
are handling gasoline.

<

Maintenance and repair

Advanced technology, e. g. the use of
modern materials and high-perfor-
mance electronics, requires specially
adapted maintenance and repair methods.
Therefore, only have corresponding work
on your BMW carried out by a BMW center
or a workshop that works according to
BMW repair procedures with correspond-
ingly trained personnel. If work is carried
out improperly there is a danger of conse-
quential damage and the related safety
risks.

<

Reference
At a glance
Controls
Driving tips
Mobility
59
Air distribution
You can direct airflow onto the
windows , toward the upper
body and into the footwell .
All intermediate settings are pos-
sible.
Air supply/blower
You can set the blower to 8 differ-
ent levels. Both heating and ven-
tilation become more effective as
the air supply rate is increased.
Turn the rotary control toward zero:
The blower and the heating are turned off,
and the air supply is stopped.
Temperature
In order to increase the tempera-
ture of the passenger compart-
ment, turn to the right toward the
red zone.
Air conditioning
The air is cooled and dehumidi-
fied and – depending on the tem-
perature setting – rewarmed.
Depending on the weather, the
windshield may fog over briefly when the
engine is started.
Condensation forms during operation
of the air conditioning system, which
then exits under the vehicle. Traces of con-
densed water on the ground underneath
the vehicle are thus normal.<
Outside-air/recirculated-air mode
If there are unpleasant odors in
the outside air, you can tempo-
rarily block the supply of incom-
ing air. The system then recircu-
lates the air currently within the vehicle.
If the windows fog over in the recircu-
lated air mode, switch this mode off
and increase the air supply as required. Do
not use the recirculated-air mode continu-
ously over a long period of time as this
would otherwise reduce the air quality in
the interior of the vehicle.<
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 air-
flow 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
The built-in microfilter removes dust and
pollen from the incoming air and in the
recirculated air mode. Your BMW center
will replace this filter during the regularly
scheduled maintenance. A substantial
reduction in airflow indicates that the filter
needs to be replaced earlier.

Reference
At a glance
Controls
Driving tips
Mobility
63
Outside air/Automatic recirculated
air control AUC/recirculated air
mode
You can respond to unpleasant
external odors or pollutants by
temporarily stopping the flow of
outside air. The system then
recirculates the air currently within the
vehicle.
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 deacti-
vating the outside airflow as required.
The system then recirculates the air
currently within the vehicle. Depending
on air quality requirements, the system
automatically switches between out-
side 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 recircu-
lated air mode, switch this mode off
and increase the air supply as required. Do
not use the recirculated-air mode continu-
ously over a long period of time as this
would reduce the air quality in the interior
of the vehicle.<
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 air-
flow rates and directions for your personal
requirements:
1Rotary dials for opening and closing the
vents at any setting desired
2Sliders 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 protec-
tion 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.