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Cigarette lighterPress the lighter in. Remove as soon as
the lighter jumps back out.
Hold or touch the hot cigarette
lighter by the knob only. Holding
or touching it in other areas could result
in burns.
The cigarette lighter remains opera-
tional when the ignition key has been
removed. Therefore do not leave unsu-
pervised children in the vehicle.<520de053
Cigarette lighter socketThis socket is suitable for attaching
power supplies for flashlights, car vac-
uum cleaners, or other appliances up to
a rating of approx. 200 watts at 12 volts.
Avoid damaging the socket by inserting
plugs of improper shapes or sizes.
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IndexDataTechnologyRepairsCar careControlsOverview
Cargo loadingStowing cargo If you are carrying cargo in the luggage
compartment of your BMW Z8 roadster:
>Load heavy cargo as far forward as
possible, directly behind the luggage
compartment partition
>Cover sharp edges and corners.
If you are stowing cargo behind the
seats in your BMW Z8 roadster:
>Stow only lightweight objects, such
as clothing items
>Do not pile objects higher than the
top edge of the backrest.
Do not stow either heavy cargo or
cargo with sharp edges and cor-
ners behind the seats, or else they
could damage the back of the seat or
the rear trim panel.
Cargo that is too big or unwieldy and
stowed behind the seats can also pre-
vent the seat from locking properly into
position. Therefore, check to make sure
that the seat is properly locked into
place, moving the seat forward if nec-
essary. Refer to page 43.
Always position and secure the load
correctly. If you do not, it can endanger
the passengers during braking or eva-
sive maneuvers.
Do not exceed the permissible gross
weight and axle load (refer to page 156),
otherwise the vehicle's operating safety
is no longer assured and you are in
violation of the law.
Make sure to secure heavy or hard
objects you stow in the passenger area,
otherwise, these objects could be flung
about during braking or evasive
maneuvers and possibly injure vehicle
occupants.<
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Page 84 of 172

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
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To ensure that your vehicle provides
maximum economy throughout a long
service life, we request that you
observe the following instructions:
Your BMW Z8 roadster is an espe-
cially high-quality vehicle. It is in
your best interest to follow the break-in
instructions very closely. Doing this will
create the basis for a long, optimum
service life.<
Engine and differentialUp to 1,200 miles (2,000 km):
Drive at varying engine and road
speeds, but do not exceed 4,500 rpm
(4,500/min), or a road speed of 106 mph
(170 km/h).
Obey your local and state maximum
speed limits.
Absolutely refrain from the full-throttle
position with the accelerator.
Once you have driven 1,200 miles
(2,000 km), you can begin to gradually
increase both the engine speed and
road speed.
You should also comply with these
break-in procedures if the engine or
differential is replaced later in the
course of the vehicle service life.TiresDue to technical factors associated
with their manufacture, tires do not
achieve their full traction potential until
an initial break-in period has elapsed.
Thus, drive with extra care during the
initial 200 miles (300 km).
Obey your local and state maximum
speed limits.
When the vehicle is being driven
on wet or slushy roads, a wedge
of water may form between the tire and
the road surface. This phenomenon is
referred to as "aquaplaning," or "hydro-
planing," and can lead to partial or
complete loss of traction, vehicle con-
trol and braking effectiveness. Reduce
your speed on wet roads.<
Brake systemApproximately 300 miles (500 km) must
elapse before the brake pads and
rotors achieve the optimal pad-surface
and wear patterns required for trouble-
free operation and long service life.
To break in the separate parking brake
drums, apply the parking brake lightly
when coasting to a standstill (at a traffic
signal, for instance), provided that traf-
fic conditions allow you to do so.
To avoid corrosion, repeat this proce-
dure from time to time.
The brake lamps do not come
on when the parking brake is en-
gaged.
Vacuum for the brake system servo unit
on your BMW is available only when the
engine is running. When you move the
vehicle with the engine shut off Ð when
towing, for instance Ð substantially
higher levels of pedal force will be
required to brake the vehicle.
optimally after about 300 miles (500 km).
Engage the gears carefully and without
high engine speeds during this break-in
period.
Break-in procedures
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IndexDataTechnologyRepairsCar careControlsOverview
Brakes:
Do not rest your foot on the brake
pedal while driving. Even light but con-
sistent pressure on the brake pedal
could lead to high temperatures, brake
wear, and possibly, to brake system
failure.
Aquaplaning:
Reduce speed while driving on wet or
slushy roads, otherwise, a wedge of
water can form between the tires and
the road surface. This phenomenon is
referred to as "aquaplaning" or "hydro-
planing." It is characterized by a partial
or complete loss of contact between
the tires and the road surface. The ulti-
mate results are loss of steering and
braking control.
Driving through water:
When there is water on the roads, do
not drive in it if it is deeper than 1 ft
(30 cm), and even then, only at walking
speed, otherwise the vehicle can sus-
tain damage to the engine, the electri-
cal systems and the transmission.<
The catalytic converter reduces harmful
exhaust emissions, and is designed for
use with unleaded fuel only. Even
minute quantities of lead would be
enough to permanently damage both
the catalytic converter and the system
oxygen sensor.To ensure efficient, trouble-free engine
operation and to avoid potential damage:>Be sure to comply with the scheduled
maintenance requirements
>Fill the fuel tank well before it is empty
>Tow-start only when the engine is
cold. If you attempt to tow-start with
a warm engine, unburned residual
fuel in the catalytic converter could
ignite and cause damage. It is better
to start the vehicle with an outside
starting aid
>Avoid other situations where the fuel
is either not burned or burns incom-
pletely, such as engaging the starter
frequently or for extended periods, or
repeated start attempts in which the
engine does not start (stopping and
restarting an engine which is running
properly does not present a prob-
lem). Never allow the engine to run
with any of the spark plug cables dis-
connected.Be sure to comply with the in-
structions above to prevent un-
burned fuel from reaching the catalytic
converter. Otherwise, there is the dan-
ger of overheating and damage to the
catalytic converter.
Extreme temperatures are present with
the catalytic converter both on this and
every catalytic converter-equipped ve-
hicle. Heat shields are installed adja-
cent to some sections of the exhaust
system. Never remove these shields;
do not apply undercoating to their sur-
faces. When driving, standing at idle,
and parking the vehicle, take care to
avoid contact between the exhaust sys-
tem and flammable materials (grass,
hay, leaves etc.). Such contact could
start a fire, resulting in serious personal
injury and property damage.<
Driving notes Catalytic converter
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Antilock Brake System (ABS) The concept ABS enhances active safety by helping
to prevent the wheels from locking un-
der braking. This is because: 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.
With ABS, you will achieve the shortest-
possible braking distances under all
given conditions (braking while driving
straight ahead or in curves, different
road surfaces).
ABS is designed to meet two essential
requirements during every brake appli-
cation:
>To help provide vehicle stability
>To help retain steering and maneu-
vering capability on all types of road
surfaces (asphalt, concrete, dirt, wet
surfaces, snow and ice).
Braking with ABSThe system is operative once the vehi-
cle exceeds a speed of approx. 6 mph
(10 km/h). The ABS is deactivated
whenever the vehicle's speed drops
back below approx. 4 mph (6 km/h).
This means that the wheels can tend
to lock in the very final phase of a panic
stop, which in actual practice is not
critical.
The ABS system works best in situa-
tions requiring maximum pressure on
the pedal (full braking). Since the vehi-
cle maintains steering responsiveness,
you can nevertheless avoid possible
obstacles with a minimum of steering
effort.
The ABS system's closed-loop control
circuit cycles in fractions of a second.
A pulsing of the brake pedal, com-
bined with the sounds associated with
the hydraulic controls, tells you that the
brake system is within its maximum
limit range and reminds you that you
should adapt your vehicle's speed to
road conditions.On road surfaces that have a loose layer
on a firm base (on gravel or snow, for in-
stance), the braking distances with ABS
may be longer than with the wheels
locked. This also applies for driving with
snow chains. However, ABS continues
to provide enhanced vehicle stability
and steering response under these
conditions.
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IndexDataTechnologyRepairsCar careControlsOverview
Antilock Brake System (ABS)Information for your safetyNot even ABS 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 of ABS to mislead you into
taking risks of any kind.
Do not make any modifications
to the ABS system.
Service procedures on ABS are to be
performed by authorized technicians
only.<
In the event of a fault
If the ABS warning lamp comes
on, refer to page 19. The brake
system will then function the
same as on vehicles without
ABS. However, have the brake
system checked by your BMW
center as soon as possible. To prevent
undetected defects and cumulative
faults from adversely affecting the brake
system, refer any problems to your
BMW center at the earliest opportunity.
Cornering Brake Control (CBC)CBC is an advanced ABS engineering
design. Vehicle stability is also en-
hanced when braking during cornering
at high lateral acceleration, or when
braking during a lane changing.