steering wheel BMW Z3 2002 Owners Manual

11n

Controls and features
Operation, maintenance

Cabin convenience:

Glove compartment90
Storage compartments90
Storage boxes90
Beverage holder91
Ashtray91
Cigarette lighter92

Loading and transporting:

coupe:
Roll-up cover93
Partition net93
Cargo loading94
Roof-mounted luggage
rack95

Special operating instructions:

Break-in procedure98
Driving notes99
Catalytic converter100
Antilock Brake System
(ABS)101
Disc brakes103
Brake system104
Winter operation105
Power steering106
Cellular phone107
Car radio reception107
Hardtop Ð roadster108

Wheels and tires:

Notes on inflation pressures110
Tire condition110
Tire replacement111
Tire rotation113
Wheel and tire
combinations114
Special features of winter
tires115
Snow chains115
Approved wheel and tire
specifications116

In the engine compartment:

Hood118
Engine compartment120
Fluids for the washer
systems122
Washer nozzles122
Engine oil123
Coolant125
Brake fluid126
Vehicle Identification127

Care and maintenance:

The BMW Maintenance
System128
Airbags130
Storing your vehicle130

Laws and regulations:

Technical modifications132
California Proposition
65 Warning132
OBD interface socket133

49n
IndexDataTechnologyRepiarsMaintenanceControlsOverview
For maximum safety, please comply
with the following:
Never try to adjust your seat while
operating the vehicle. The seat
could respond with an unexpected
movement, and the ensuing loss of
vehicle control could result in an acci-
dent.
Be sure that the safety belt is fastened
firmly against your body at all times. In
the event of a frontal impact, a loose lap
belt could slide over your hips, leading
to abdominal injury. In addition, the
safety belt's restraint effectiveness is
reduced if the belt is worn loosely.
When adjusting your seat, select a
position that provides the maximum
distance between you and the steering
wheel, instrument panel and door while
still allowing comfortable and safe
access to all vehicle controls.<
Correct sitting postureTo reduce strain on your spinal column,
sit all the way back in the seat and rest
your back fully against the backrest.
In the ideal sitting posture, your head
extends along a straight line from your
spine.
For long-distance driving, you may wish
to increase the backrest tilt angle
slightly to reduce muscular tension.
You should also be able to grasp the
highest point of the steering wheel with
your arms slightly bent.
After a seat adjustment in the coupe,
adjust the height of the safety belt also,
refer to page 52.1 Height
*
2 Backward/forward adjustment367de015
Seat adjustment

55n
IndexDataTechnologyRepairsMaintenanceControlsOverview
AirbagsSitting correctly with airbags
For your safety, comply with the
following instructions for the
airbags. If you do not, the airbags may
not be able to provide their maximum
protection. All passengers in the vehicle
should be aware of and comply with this
information:
The airbags are supplemental restraint
devices designed to provide extra
protection; they are not a substitute for
safety belts. Wear your safety belt at
all times.
Adjust your seat to a position that is
comfortable for you, allowing unre-
stricted vehicle operation, and is not
closer to the steering wheel than neces-
sary.
Always grasp the steering wheel by the
steering wheel rim, keeping your hands
at the "9-o'clock" and "3-o'clock" posi-
tions in order to minimize any risk of
injury to hands or arms if the airbag does
deploy.
There should not be any other persons,
animals or objects between the airbag
and the passenger in that seat.
Do not use the cover panel for the front
airbag on the passenger side as a
storage area.
Do not apply adhesive materials to the
cover panels of the airbags, cover them
or modify them in any other way.
If you use a child-restraint system, read
carefully and comply with the instruc-
tions on page 56.
Be sure that child-restraint systems are
installed correctly and with the greatest
possible distance from the airbag in the
side trim panel. Do not allow children to
lean out of the child-restraint system in
the direction of the side trim panel.
Otherwise, serious injuries could occur
if the airbag is triggered.<
Even when you have complied with all
of these guidelines, there is still a small
residual risk of minor facial, hand and
arm injuries from airbag deployment
occurring in isolated instances.
The ignition and inflation noise may
cause a mild temporary hearing loss in
extremely sensitive individuals.
Corresponding airbag safety precau-
tions are provided on both sun visors
and the instrument panel (US models).
For additional information concerning
the airbag system, refer to pages 130
and 164.This is the correct way a child should sit
in a child restraint when side airbags
(arrow) are provided.
367de359

58n
0 Steering lockedThis is the only position in which the
ignition key can be inserted and
removed.
An acoustic warning sounds when you
fail to remove the ignition key after
opening the driver's door.
After removing the key, turn the
steering wheel slightly to the left or right
until the lock engages.367de009
Vehicles with automatic transmis-
sion
*:
Your vehicle is equipped with an inter-
lock. This means that the ignition key
cannot be turned to position 0 and
removed until the selector lever is in
position "P".
Furthermore, the selector lever is
locked in position "P" when the ignition
key is in position 0 or removed from the
ignition lock.
To turn the key back to position 0 or to
remove it, first move the selector lever
to position "P".<
1 Steering unlockedYou will often find that it is easier to turn
the ignition key from position 0 to 1 if
you move the steering wheel slightly to
help disengage the detent.
Individual electrical equipment and
accessories are available for use.2 Ignition onAll electrical equipment and accesso-
ries are available for use.3 Starting the engineVehicles with manual transmission:
When starting, depress the clutch,
since a lock otherwise prevents the
engine from being started.
Ignition lock

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.

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.

Overview
Controls and features
Operation, maintenance
Owner service procedures
Technical data
Index Advanced technology
97n
IndexDataTechnologyRepairsMaintenanceControlsOverview
Special operating instructions:
Break-in procedure98
Driving notes99
Catalytic converter100
Antilock Brake System
(ABS)101
Disc brakes103
Brake system104
Winter operation105
Power steering106
Cellular phone107
Car radio reception107
Hardtop Ð roadster108
Wheels and tires:
Notes on inflation pressures110
Tire condition110
Tire replacement111
Tire rotation113
Wheel and tire
combinations114
Special features of winter
tires115
Snow chains115
Approved wheel and tire
specifications116In the engine compartment:
Hood118
Engine compartment120
Fluids for the washer
systems122
Washer nozzles122
Engine oil123
Coolant125
Brake fluid126
Vehicle Identification127
Care and maintenance:
The BMW Maintenance
System128
Airbags130
Storing your vehicle130
Laws and regulations:
Technical modifications132
California Proposition
65 Warning132
OBD interface socket133
Maintenance

101n
IndexDataTechnologyRepairsMaintenanceControlsOverview
Antilock Brake System (ABS)The conceptThe Antilock Brake System (ABS) keeps
the wheels from locking during braking,
thereby enhancing active driving safety.
The reason: locked wheels are
dangerous. When the front wheels
slide, the driver loses steering control
over the vehicle. Traction loss at the
rear wheels can cause the rear end to
break into an uncontrolled skid.
The system can achieve the shortest
braking distances possible under most
conditions (on straight-aways or in
curves, on the various road surfaces).
ABS is designed to meet two essential
requirements during every brake appli-
cation:
>To help provide vehicle stability
>Assured ability to steer and maneuver
on the various road surfaces (asphalt,
concrete, dirt, wet conditions, snow
and ice).
Braking with ABSThe system is operative once the
vehicle exceeds a speed of approx.
6 mph (10 km/h). It is inactive once
again below approx. 4 mph (6 km/h).
Therefore, the wheels could theoreti-
cally tend to lock in the final phase of a
braking action, but this is insignificant in
actual practice.
If you are in a situation which requires
full braking, you will exploit the full
benefits of the ABS system if you apply
maximum brake pressure ("panic stop").
Since the vehicle maintains steering
responsiveness, you can avoid possible
obstacles with a minimum of steering
effort, despite the full brake application.The ABS closed-loop control circuit
cycles in fractions of a second. The
pulsation at the brake pedal, together
with sounds generated by the hydraulic
control system, indicate to you that the
vehicle is approaching its maximum
braking range. It is a reminder to you
that you must adapt the vehicle's road
speed to existing road conditions.
On road surfaces that have a loose
surface layer on a firm base with good
traction (on gravel, deep sand or snow,
for example), braking distances may be
longer than with locked wheels. This
also applies for driving with snow
chains. However, ABS continues to
provide enhanced vehicle stability and
steering response under these condi-
tions.

105n
IndexDataTechnologyRepairsMaintenanceControlsOverview
Winter operationThe onset of winter is often accompa-
nied by rapid changes in weather.
Adaptations in driving style should be
accompanied by preparations on the
vehicle itself to ensure that your vehicle
operation through the winter remains
safe and trouble-free.CoolantEnsure that the coolant contains the
year-round 50 : 50 ratio of water and
antifreeze with corrosion inhibitor. This
mixture provides protection against
freezing down to approx. Ð 34 7
(Ð 37 6). Replace the coolant every
three years.LocksBMW door lock deicer can be used to
free the doors if they are frozen. This
deicer also contains lubricant.
After using deicer, treatment with BMW
lock cylinder grease is recommended.
Rubber seals and components In order to prevent freezing, apply BMW
rubber treatment to weather-stripping
on the doors, hood, luggage compart-
ment and to convertible top seals.
A full range of car-care products is
available from your BMW center.< Snow chainsBMW snow chains
* can be mounted on
both summer and winter tires. Mount
them in pairs on the rear wheels only.
Comply with the manufacturer's safety
precautions. Do not exceed a speed
limit of 30 mph (50 km/h) when driving
with chains. As an exception in this
situation, we recommend that you
switch off the ASC+T/DSC
* system
when snow chains are mounted. Refer
to pages 73, 74.
Starting offWhen starting from a full stop or
"rocking" free in deep snow, we recom-
mend that you switch off the ASC+T/
DSC
* system, refer to pages 73, 74.
Driving on low-traction road
surfacesUse 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.Brakes Winter road conditions substantially
reduce the traction available between
the tires and the road surface.
Remember that Ð in every situation Ð
braking distances will be significantly
longer as a result of this.
ABS is intended to prevent the wheels
from locking during brake applications,
thus helping to maintain vehicle stability
and steering response.

106n
Winter operation Power steeringIf it should occur that the ABS does not
respond in a critical braking situation
and the wheels lock: reduce the pres-
sure on the brake pedal until the wheels
just start to roll again while still main-
taining enough force to continue
braking. Following that, increase pedal
pressure again. Reduce the pressure as
the wheels lock, then reapply pressure.
Repeat this process.
This type of staggered braking will
shorten the braking distance, and the
vehicle still remains responsive to
steering.
You can still attempt to steer around
hazards once you have reduced the
pressure on the brake pedal.
Do not shift down on slick road
surfaces. Doing so could cause
the rear wheels to lose traction and
skid, which could result in the loss of
vehicle control.<
Declutch during hard braking on
road surfaces which provide only
poor or uneven traction.<
Skid controlDepress the clutch and release the
accelerator pedal, or place the selector
lever of the automatic transmission into
the "Neutral" position. Countersteer
carefully and attempt to regain control
of the vehicle.ParkingEngage 1st or reverse gear. If your
vehicle is equipped with an automatic
transmission, place the selector lever in
"Park". On vehicles with manual trans-
mission, also apply the parking brake
when parking on inclined surfaces. In
order to prevent the parking brake
linings 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 light
up when the parking brake is
applied.<
If you notice a change in steering
response (high steering effort, for
example):
Consult a BMW center to have the
system checked.
If the power steering fails,
increased effort will be required
to steer the vehicle.<