2000 BMW Z8 air condition

72n
Heating and ventilation/Air conditioningAir supply
You can select blower speeds
from 1 to 4. The higher the set-
ting, the greater the amount of
heat and air supply. In position
0, the blower, heating and air condi-
tioner are switched off.
Temperature
In order to increase the inte-
rior temperature, turn to the
right. For rapid heating, turn
completely to the right. Then
select an interior temperature that is
comfortable for you.
Air distribution
You can direct the airflow onto
the windows , toward the
upper body and into the
footwell . You can also make
all intermediate settings. The "6 o'clock"
setting is recommended for normal con-
ditions (refer also to the illustration and
overview on page 70).
Recirculated air mode
If there are unpleasant odors
in the outside air, you can tem-
porarily block the air supply.
The system then recirculates
the air currently within the vehicle.
If the windows fog over when
using recirculated air, turn off the
recirculated air mode and increase the
airflow if necessary, or press the button
for "defrosting and defogging the win-
dows."<
Venting in outside air
Recommended when driving
with the convertible top open.
The degree to which the pas-
senger compartment is
heated depends on temperature selec-
tion and air distribution.
Air conditioner/Venting in outside
air
The air is cooled and dehu-
midified and Ð depending on
the temperature setting Ð
warmed again when the air
conditioner system is switched on.
Depending on the weather, the wind-
shield may fog over briefly when the
engine is started.
Do not turn on the air conditioner if out-
side air temperature is below approx.
41 7 (5 6). This will help to prevent
the windows from fogging.
If the windows fog over after switching
the air conditioner off, switch it back on.
Air conditioner/Recirculated air
mode
Both systems are operating.
Another advantage is that a
hot vehicle cools down more
quickly with the convertible
top closed. This way, you will get the
lowest possible vented air temperature
(turn the temperature rotary dial all the
way to the left).

73n
IndexDataTechnologyRepairsCar careControlsOverview
Heating and ventilation/Air conditioning
If the windows fog over when
using recirculated air, turn off the
recirculated air mode, and increase air-
flow if necessary, or press the button
for "defrosting and defogging the win-
dows."<
To defrost windows and remove
condensation
This operation quickly re-
moves ice and condensation
from the windshield and the
side windows.
Rear window defroster
Whenever the hardtop is on,
the indicator lamp lights up
when the rear window de-
froster is turned on. The rear window
defroster switches off automatically.
Refer to page 58.
The indicator lamp is always
active. The rear window defroster
will not work if the hardtop is not in
place.<
Draft-free ventilation You can adjust the air outlets for the up-
per body area for your personal comfort:
Use rotary dials 1 to open and close the
air outlets through an infinitely-variable
range.520de043
You can adjust the direction of the air-
flow using the levers 2.
Set the air outlets so that the air flows
past you and is not directed straight at
you.MicrofilterThe microfilter removes dust and pollen
from the incoming air. Your BMW cen-
ter will change this filter during routine
maintenance. A substantial reduction in
air flow indicates that the filter needs to
be replaced early.520de140

74n
Heating and ventilation/Air conditioningRapid ventilation1 Set the rotary blower switch to
position 4 for air intake
2 Turn the rotary temperature control
completely to the left
3 Rotary control for air distribution in
position
4 Select outside air
5 Open the air outlets for the upper
body area.520de044
Cooling1 Set the rotary blower switch to
position 2 for air intake
2 Use the rotary temperature control
to select an interior temperature
comfortable for you
3 Rotary control for air distribution in
position
4 Select air conditioning/outside air
5 Open the air outlets for the upper
body area.520de129
Rapid cooling1 Set the rotary blower switch to
position 4 for air intake
2 Turn the rotary temperature control
completely to the left
3 Rotary control for air distribution in
position
4 Select air conditioning/recirculating
air
5 Open the outlets for the upper body
area.520de097

75n
IndexDataTechnologyRepairsCar careControlsOverview
Heating and ventilation/Air conditioning Seat heatingRapid heating 1 Set the rotary blower switch to
position 3 for air intake
2 Turn the rotary temperature control
completely to the right
3 Rotary control for air distribution in
position
4 Select incoming air mode.520de045
HeatingWhen the windows are free of ice and
condensation, we recommend the fol-
lowing settings:
1 Set the blower speed control for the
air flow rate to position 2
2 Use the rotary temperature control to
select an interior temperature which
is comfortable for you
3 Rotary control for air distribution in
position .520de047
The seat cushion and backrest can
be heated when the ignition key is in
position 2.
By repeately pressing the button, you
can select one of three different opera-
tion modes:
>Two indicator lamps on: heating at
high temperature
>One on: heating at low temperature
>Indicator lamps off: seat heating
deactivated.520de048

Overview
Controls and features
Operation, care
and maintenance
Owner service procedures
Technical data
Index Advanced technology
83n
IndexDataTechnologyRepairsCar careControlsOverview
Car care Special operating instructions:
Break-in procedures84
Driving notes85
Catalytic converter85
Antilock Brake System (ABS)86
Dynamic Brake Control
(DBC)88
Disc brakes88
Brake system89
Winter operation90
Power steering92
Cellular phone92
Radio reception92
Wind protection93
Hardtop94
Wheels and tires:
Tire inflation pressure96
Tire condition97
Tire replacement98
Tire rotation100
Wheel and tire
combinations101
Winter tires102
Snow chains102
Approved wheel and tire
specifications103Under the hood:
Hood104
Engine compartment106
Washer fluids108
Washer nozzles108
Engine oil109
Coolant111
Brake fluid112
Vehicle Identification
Number113
Maintenance and care:
The BMW Maintenance
System114
Caring for your vehicle115
Airbags121
Storing your vehicle122
Laws and regulations:
Technical modifications123
California Proposition 65
Warning123
OBD interface socket124

88n
Dynamic Brake Control (DBC) Disc brakesIf you step on the brake rapidly, this
system automatically produces maxi-
mum braking force boost and thus
helps to achieve the shortest possible
braking distance during "panic stops."
All of the benefits of the ABS system
are exploited under these circum-
stances.
Do not reduce the pressure on the
brake pedal for the duration of the brake
application. When the brake pedal is
released, the DBC is deactivated.
In the event of a malfunction,
the yellow brake warning lamp
comes on. Normal braking effi-
ciency and ABS are still fully
available. Have the system
checked and repaired at your
BMW center as soon as possible.
Information for your safetyNot even DBC can suspend the laws
of physics. The consequences of brake
applications with inadequate clear-
ances for safety between vehicles,
excessive speed or if aquaplaning
occurs are always the responsibility of
the driver. You should never allow the
added safety provided by DBC to mis-
lead you into taking risks of any kind.Disc brakes furnish optimum decelera-
tion and braking control and greater
fade resistance under heavy use.
When the vehicle is driven only occa-
sionally, during extended periods when
the vehicle is not used at all, or in oper-
ating conditions where brake applica-
tions are less frequent, there is an in-
creased tendency for corrosion of the
rotors and accumulation of contamina-
tion on the brake pads. This occurs
because the minimal pressure which
must be exerted by the pads to clean
the rotors by brake applications is not
achieved.
If the brake rotors are corroded, they
will tend to respond to braking with a
pulsating effect that even extended
brake applications will fail to cure.
For your own safety: use only
brake pads BMW has approved
for your specific vehicle model. BMW
cannot evaluate non-approved brake
pads to determine if they are suited for
use, and therefore cannot ensure the
operating safety of the vehicle if they
are installed.<

89n
IndexDataTechnologyRepairsCar careControlsOverview
Disc brakes Brake systemDriving notesWhen driving in wet conditions and in
heavy rain, it is effective to apply light
pressure to the brakes every few miles
or kilometers. Watch traffic conditions
to ensure that this maneuver does not
endanger other road users. The heat
which is generated by the brake appli-
cations helps to dry the brake pads and
rotors.
Maximum braking force is obtained
while the wheels are not locked, but
rather when they are still barely turning
immediately prior to locking. ABS main-
tains this state automatically. If the ABS
fails, you should revert to the staggered
braking technique (refer to page 91).
Long or steep mountain descents do
not necessarily lead to reduced braking
efficiency if you drive downhill with the
transmission in a gear requiring minimal
brake applications.
Braking effect on the engine can be
further increased by downshifting, into
first gear, if necessary.If engine braking should prove to be
inadequate, you should still avoid ex-
tended, continuous braking. Instead of
maintaining low to moderate pressure
over an extended period of time, you
should decelerate by applying more
substantial pressure to the brake pedal
(watch for following traffic), releasing
the pedal, and then repeating the appli-
cation (staggered braking). The cooling
phases between active braking inter-
vals prevent the brakes from overheat-
ing and retain full braking capacity.
Do not coast with the clutch de-
pressed, the gear-shift lever in
neutral, or, above all, with the engine
shutt off; otherwise, the engine will pro-
vide no braking effect if the transmis-
sion is in neutral, and there is no brak-
ing or steering power assist if the
engine is not running. Do not allow floor
mats, carpets or any other objects to
protrude into the area around the brake
pedal, the clutch or the accelerator
which could obstruct their freedom of
movement.<
Brake fluid level
The brake warning lamp comes
on with the parking brake
released:
The brake fluid level is too low in
the reservoir (refer to page 112).
If the brake fluid level is too low
and brake pedal travel has become no-
ticeably longer, there may be a defect
in one of the brake system's hydraulic
circuits.
Proceed to the nearest BMW cen-
ter. Higher brake application pres-
sure may be necessary under these con-
ditions, and brake pedal travel may be
significantly longer. Please remember to
adapt your driving style accordingly.<

91n
IndexDataTechnologyRepairsCar careControlsOverview
Winter operationDriving on low-traction road
surfacesDo not activate the Sport Mode (refer to
page 64). Use smooth, gentle pressure
to control the accelerator pedal. Avoid
excessive engine speeds and shift to
the next higher gear at an early point.
Shift down into the next lowest gear
when approaching uphill or downhill
grades. Maintain an adequate distance
between yourself and the vehicle
ahead.BrakesWinter road conditions substantially
reduce the amount of traction available
between the tires and the road surface.
The resulting increases in braking dis-
tance are considerable and should be
kept in mind at all times.
ABS is intended to prevent the wheels
from locking during brake applications,
thus helping to maintain vehicle stability
and steering response.If the ABS does not respond in a critical
braking situation and the wheels lock,
reduce the pressure on the brake pedal
until the wheels just start to roll again
while still maintaining enough force to
continue braking.
Then increase the pressure, reduce the
pressure when the wheels lock, reapply
pressure etc.
This staggered braking procedure will
reduce braking distances while helping
you maintain steering control.
You can always then attempt to steer
around hazards after you have reduced
pressure on the brake pedal.
Do not shift down on slick road
surfaces if you want to decelerate.
Doing so could cause the wheels to
lose traction and skid, thus resulting in
the loss of vehicle control.<
Depress the clutch during hard
braking on road surfaces that pro-
vide only poor or uneven traction.<
Skid control Depress the clutch and release the
accelerator pedal. Countersteer care-
fully and attempt to regain control of the
vehicle.ParkingEngage first or reverse gear. Depending
on the steepness of the incline, you can
apply the parking brake as well. In order
to prevent the parking brake pads from
locking due to frost or corrosion, dry
them by gently applying the parking
brake as the vehicle is coming to a stop.
Make sure that following traffic is not
endangered.
The brake lamps do not come
on when the parking brake is
engaged.<