brake BMW Z3 2002 User Guide

59n
IndexDataTechnologyRepairsMaintenanceControlsOverview
Starting the engineBefore starting>Engage the parking brake
>Be sure that the gearshift lever is in
"Neutral" (or the selector lever in "P"
if the vehicle is equipped with auto-
matic transmission)
>Depress the clutch pedal.
Do not run the engine in enclosed
spaces. The exhaust gases
contain carbon monoxide, an odorless
and colorless, but highly toxic gas.
Breathing the exhaust gases poses an
extreme health risk, and can lead to
unconsciousness and death.
Do not leave the vehicle unattended
with the engine running. An unattended
vehicle with a running engine repre-
sents a potential safety hazard.<
Starting the engine>Do not press the accelerator pedal
while starting the engine.
Do not actuate the starter for too
short a time. Do not turn it for
more than approx. 20 seconds. Release
the ignition key immediately after the
engine starts.
Do not allow the engine to warm up
by leaving it running while the vehicle
remains stationary. Instead, begin to
drive immediately at a moderate engine
speed.<
Should the engine fail to start on the
first attempt (if it is very hot or cold, for
instance):
>Press the accelerator pedal halfway
down while engaging the starter.
Cold starts at very low temperatures,
from approx. +5 7 (Ð15 6) and at
altitudes above approx. 3,300 ft
(1,000 m):
>On the first start attempt, engage the
starter for a longer period (approx.
10 seconds).
If these temperature conditions are
anticipated for a longer period, have the
engine oil changed to a special oil, refer
to page 124. Please contact your BMW
center for additional information.
Usually, it is not necessary to depress
the accelerator pedal. However, at high
altitudes or in very hot or very cold
weather, depress the pedal halfway
down when starting the engine.
Engine idle speed is controlled by the
engine computer system. Increased
speeds at start-up are normal and
should decrease as the engine warms
up. If engine speed does not decrease,
service is required.
To prevent the battery from
discharging, always switch off any
accessories which are not required.
Switch off the ignition when the vehicle
is not being driven.

60n
Switching off the engine Parking brakeTurn the ignition key to position 1 or 0.
Do not remove the ignition key
while the vehicle is rolling. The
steering locks and it is impossible to
steer the vehicle.
Always remove the ignition key and
engage the steering lock before leaving
the vehicle.
Vehicles with manual transmission:
Always engage the parking brake when
parking on slopes and inclined
surfaces, since even placing the gear-
shift lever in 1st gear or reverse may not
provide adequate resistance to rolling.
Vehicles with automatic transmission:
Place the selector lever in "P".<
The parking brake is designed primarily
to prevent the vehicle from rolling when
parked. It operates against the rear
wheels.To engageThe lever engages automatically when
you pull it up, and the indicator lamp in
the instrument panel comes on when
the ignition key is in position 2, refer to
page 21.To releasePull up slightly on the lever, press the
button and lower the lever.367de028
If, in exceptional circumstances,
it should be necessary to engage
the parking brake while the vehicle is
in motion, do not pull it with excessive
pressure. Keep your thumb pressed
against the release button while care-
fully pulling up the lever to apply
moderate pressure.
Excessive pressure can lead to over-
braking and loss of traction at the rear
(fishtailing).
The brake lamps do not come on when
the parking brake is engaged.
Vehicles with manual transmission:
Always engage the parking brake when
parking on slopes and inclined
surfaces, since even placing the gear-
shift lever in 1st gear or reverse may not
provide adequate resistance to rolling.
Vehicles with automatic transmission:
Place the selector lever in "P".<
To avoid corrosion and one-sided
braking, apply the parking brake lightly
from time to time when coasting to a
standstill (at a traffic signal, for
instance), provided that it is safe to do
so.

61n
IndexDataTechnologyRepairsMaintenanceControlsOverview
Manual transmissionPress the clutch pedal all the way down
each time you shift, pressing the gear-
shift lever into its proper end position.
Depress the clutch when starting the
vehicle, too, otherwise, lockout will
prevent the engine from starting.
The gearshift lever's neutral plane is
located between 3rd and 4th gear.
When shifting from each gear into
"Neutral", the gearshift lever returns
automatically to this neutral position
because of its spring loading.367de353
ReverseSelect reverse only when the vehicle is
stationary. Press the gearshift lever to
the left to overcome the resistance.
As you do this, the backup lamps will
turn on automatically when the ignition
key is in position 2.
Do not hold the vehicle in place on
slopes by slipping or "riding" the
clutch. Use the parking brake instead,
otherwise, the ensuing friction to the
clutch plates will cause a great deal of
wear and tear on the clutch.<

62n
Automatic transmission with Steptronic
*
You can drive as with a normal auto-
matic transmission. In addition, you can
also shift manually.
When you move the selector lever from
the "D" position to the left into the M/S
range, the performance-oriented shift
programs of the automatic transmission
are engaged. As soon as you briefly tab
the selector lever in the "+" or "Ð" direc-
tion, Steptronic changes the gear. The
manual mode is engaged. When you
wish to use the automatic transmission
mode again, move the selector lever to
the right into the "D" position.
The automatic transmission of your
BMW is equipped with Adaptive Trans-
mission Control (ATC), a system which
reacts with precision to your individual
driving style and the driving conditions.
To achieve this, different shift programs
are automatically engaged.
For additional details concerning the
ATC, please refer to the chapter
"Advanced technology" on page 164.
Selector lever positions
P R N D M/S + Ð
Starting the engine The engine can only be started in
selector lever positions P ("Park") or
N ("Neutral"). Range selection A detent prevents inadvertent shifts to
the "Reverse" or "Park" selector lever
positions. To disengage the detent,
press the button on the front side of
the selector lever knob (arrow). 367de703
While the vehicle is stationary and
before shifting out of "Park" or
"Neutral", depress the footbrake in
order to disengage the selector lever's
lock mechanism (Shiftlock).
Hold the footbrake down until starting
off. The vehicle will otherwise "creep"
when a drive position is engaged.<
If you leave the vehicle with the
engine running, move the selector
lever to the "Park" or "Neutral" position
and apply the parking brake. If you fail
to do this, the vehicle could move.
Do not leave the vehicle unattended
with the engine running. An unattended
vehicle with a running engine repre-
sents a potential safety hazard.<

67n
IndexDataTechnologyRepairsMaintenanceControlsOverview
Cruise control
*
You can maintain and store any desired
vehicle speed above approx. 25 mph
(40 km/h).
The system is switched off and the
stored speed deleted from its memory
when you turn the ignition key to posi-
tion 0.
Do not use the cruise control on
winding roads, when high traffic
density prevents driving at a constant
speed, when the road surface is slick
(snow, rain, ice) or when the road
surface is loose (rocks or gravel,
sand).< 365us059
To maintain and store speed/
to acceleratePress the lever briefly in direction 1:
The system maintains and stores the
current vehicle speed. Every time you
briefly press the lever, the speed
increases by approx. 0.6 mph (1 km/h).
Hold the lever in position 1:
The vehicle accelerates without pres-
sure on the accelerator pedal. When
you release the lever, the system main-
tains and stores the current speed.
If, on a downhill grade, the engine
braking effect is not sufficient, the
controlled speed can be exceeded.
Speed can drop on uphill grades if the
engine output is insufficient.< To deceleratePress the lever briefly in direction 2:
If you are already driving with active
cruise control, the speed is decreased
by approx. 0.6 mph (1 km/h) every time
you briefly touch the lever.
Hold the lever in position 2:
With the cruise control active, the
system automatically reduces the
throttle opening to slow the vehicle.
When you release the lever, the system
maintains and stores the current speed.Call up stored setting (resume)Press the lever briefly in direction 3:
The vehicle accelerates to and main-
tains the last speed stored.To deactivatePress the lever briefly in direction 4:
The cruise control is deactivated imme-
diately.
In addition, the system is also automati-
cally deactivated in response to the
following conditions:
>When you apply the brakes
>When you depress the clutch or move
the automatic transmission selector
lever from "D" to "N"
>If you exceed or fall below the preset
speed for an extended period (by
depressing the accelerator, for
example).

73n
IndexDataTechnologyRepairsMaintenanceControlsOverview
The conceptThis system helps provide additional
dynamic stability, particularly when
starting off, accelerating and cornering.
ASC+T recognizes the danger present
in traction loss and will increase driving
stability and traction by reducing the
engine's output, and if necessary, by
applying the brakes individually to the
rear wheels.
ASC+T is available as soon as the
engine starts up.
Indicator lamp
The indicator lamp in the instru-
ment cluster goes out shortly
after you switch on the ignition,
refer to page 22.
The indicator lamp flashes:
ASC+T controls the drive and braking
forces.
If the indicator lamp fails to go out after
the engine is started, or if it comes on
during normal driving and stays on:
There is a system malfunction or the
system was switched off with the
button. Consequently, interventions to
increase driving stability (as described
in the preceding column) are not avail-
able. You can still drive the vehicle
normally without ASC+T.
In the event of a malfunction, please
consult your BMW center.
Switch off ASC+TPress the button (arrow); the indicator
lamp comes on and stays on.
In the following rare situations, it may
be effective to switch off the ASC+T for
a brief period:
>When rocking the vehicle or starting
off in deep snow or on loose surfaces
>When driving with snow chains.
To maintain vehicle stability, drive
with the ASC+T switched on
whenever possible.<367de701
Automatic Stability Control plus Traction (ASC+T)

74n
ASC+T Dynamic Stability Control (DSC)*Reactivate the ASC+TPress the button again; the indicator
lamp goes out.
The laws of physics cannot be
repealed, even with ASC+T. It will
always be the driver's responsibility to
drive in a manner that matches road
conditions. We therefore urge you to
avoid using the additional safety margin
of the system as an excuse for taking
risks.<
For additional details concerning
ASC+T, please refer to the chapter,
"Advanced technology," page 165.
The conceptDSC maintains vehicle stability, even in
critical driving situations.
The system optimizes vehicle stability
during acceleration and when starting
from a full stop, as well as optimizing
traction. In addition, it recognizes
unstable vehicle conditions, such as
understeering or oversteering, and, as
far as is possible within the laws of
physics, helps keep the vehicle on a
steady course by reducing the engine
speed and brake applications to the
individual wheels.
The DSC is operational every time you
start the engine. DSC includes the
functions of ADB and CBC, refer to
page 102.
The ADB (Automatic Differential
Braking) copies the function of conven-
tional differential and transverse locks
through brake intervention, and
increases traction whenever conditions
merit, e. g. when driving on snow-
covered roads.
If the DSC is deactivated the ADB is in
ready mode.
Indicator lamp
The indicator lamp in the instru-
ment cluster goes out shortly
after you switch on the ignition,
refer to page 22.
The indicator lamp flashes:
DSC controls the drive and braking
forces.
The indicator lamp stays lit:
DSC has been switched off via the
button; ADB is in ready mode.
ADB control intervention is not indi-
cated.
The indicator lamp and the
brake warning lamp remain on:
The DSC, ADB and DBC have
been switched off via the button
or are defective.
The vehicle will remain completely
operational, however without DSC. In
the event of a fault, please see your
BMW center.
Indicator and warning lamps for
Canadian models.

75n
IndexDataTechnologyRepairsMaintenanceControlsOverview
Dynamic Stability Control (DSC)*Switch off DSC/activate ADBPress the DSC switch (arrow) Ð the indi-
cator lamp comes on and remains on.
DSC has been switched off; ADB is in
ready mode.
In the following exceptional circum-
stances, it may be effective to activate
the ADB for a short period:
>When rocking the vehicle or starting
off in deep snow or on loose surfaces
>When driving on snow-covered
grades, in deep snow, or on a snow-
covered surface that has been
packed down from being driven on
>When driving with snow chains.367de739
Switch off DSC and ADBHold the DSC switch down for at least
3 seconds. The indicator lamp and the
red warning lamp for the brake
hydraulic system remain on.
In this case, no interventions to
increase stability and traction for engine
and brakes are carried out.
To maintain vehicle stability, drive
with the DSC switched on when-
ever possible.<
Reactivate DSC and ADBPress the button again; the indicator
lamp or the indicator lamps will go out.
The laws of physics cannot be
repealed, even with DSC. It will
always be the driver's responsibility to
drive in a manner that matches road
conditions. We therefore urge you to
avoid using the additional safety margin
of the system as an excuse for taking
risks.
The DSC is deactivated and will not
carry out any stabilizing intervention
when the ADB is in ready mode.
Do not make any modifications to the
DSC system. Allow only authorized
technicians to perform service proce-
dures on the DSC.<
You will find additional details
concerning DSC in the chapter
"Advanced technology" on page 165.

91n
IndexDataTechnologyRepairsMaintenanceControlsOverview
Beverage holder
*
Ashtray
*
The beverage holder is located in the
center console next to the parking
brake.
You will find a coin box in front of the
beverage holders.367us743
To openPress down on the left of the lid (arrow).
To extinguish a cigarette, tap off the
ash and gently press the tip into the
funnel.367de038
To emptyOpen the lid and press down (arrow):
The ashtray insert pops up and can be
removed.367de308

93n
IndexDataTechnologyRepairsMaintenanceControlsOverview
Pull out the roll-up cover and hook it
into the holders at the rear.
The roll-up cover can carry light items
such as articles of clothing.
Do not place heavy or hard
objects on the roll-up cover.
These objects could endanger vehicle
occupants during heavy brake applica-
tions and evasive action or in a crash.
Do not allow the roll-up cover to snap
back when it is retracted. This could
damage it.< 367de628
Z3 cou
pe
Pull out the partition net on the strap
and grip the bar firmly with the other
hand. Then grasp the bar on both sides,
pull it up and position it into the
holders. This process will work out best
if you do it from inside the passenger
compartment.
Do not allow the partition net to
snap back when it is retracted. If
this is done, there is a risk of personal
injury, and the partition net could be
damaged.< 392de163
Z3 cou
pe
Roll-up cover Partition net
*