2004 BMW M3 CONVERTIBLE battery

Contents

Owner service procedures

Replacement procedures:

Onboard tool kit136
Windshield wiper blades136
Lamps and bulbs137
Repairing a flat tire140
Battery144
Fuses145

Giving and receiving
assistance:

Receiving assistance146
Jump-starting147
Towing the vehicle148

Technical data
Engine data154
Dimensions155
Weights156
Capacities157
Index

Everything from A to Z160

18

Indicator and warning lamps

Technology that monitors itself

Indicator and warning lamps that are
identified by

●

are tested for proper
functioning whenever the ignition key is
turned. They each light up once for dif-
ferent periods of time.
If a fault should occur in one of these
systems, the corresponding lamp does
not go out after the engine is started, or
it lights up while the vehicle is moving.
You will see how to react to this below.

Red: stop immediately

Battery charge current

●

The battery is no longer being
charged. There is a malfunction
of the alternator drive belt or in the
charging circuit of the alternator. Please
contact the nearest BMW center.
If the drive belt is defective, stop
and switch off the engine immedi-
ately to prevent overheating and seri-
ous engine damage. If the drive belt is
defective, increased steering effort is
also required.

<

Engine oil pressure

●

An alarm sounds at the same
time. Stop vehicle immediately
and switch off engine. Check the
engine oil level and top up as required.
If the oil level is correct: please contact
the nearest BMW center.
Do not continue driving, as the
engine could sustain serious dam-
age from inadequate lubrication.

<

Flat Tire Monitor

●

In addition, an acoustic signal is
sounded: there is a flat tire.
Reduce speed and carefully come to a
stop. Avoid sudden braking and steer-
ing maneuvers.
For additional information: refer to
page 87
Brake warning lamp

●

If the lamp comes on when the
parking brake is not engaged:
check the brake fluid level. Before driv-
ing further, be sure to comply with the
instructions on pages 114 and 129.
Brake warning lamp for Cana-
dian models.

Red: an important reminder

Brake warning lamp

●

Comes on when the parking
brake is engaged – an additional
acoustic signal sounds when starting
off. For additional information: refer to
page 68
Brake warning lamp for Cana-
dian models.
Lock backrest/Please fasten
safety belts

●

Comes on together with an
acoustic signal until the safety belts are
fastened. Flashes when the backrest is
not locked.
For additional information on locking
the backrest, refer to page 49
For additional information on safety
belts: refer to page 50
Airbags

●

Please have the system
inspected at your BMW center.
For additional information: refer to
page 55

30Opening and closing
KeysThe key set1Master keys with remote control unit
– these keys determine the functions
of the Key Memory. Refer to page 64.
You can mark the individual keys for
subsequent identification by apply-
ing the colored decals that you
received when accepting delivery of
your vehicle
In every master key with remote
control there is an extended-life
battery that is charged automatically in
the ignition lock as you drive.
For this reason, if you have a master
key with remote control that is other-
wise not used, use that key at least
once every year while driving for an
extended period to charge the bat-
tery.<
2Spare key – for storage in a safe
place, such as in your wallet. This key
is not intended for constant use. The
luggage compartment lid and the
glove compartment cannot be locked
and unlocked with this key. This is
useful for valet parking, for example.
Central locking systemThe conceptThe central locking system engages
and releases the following locks at the
same time:
>doors
>luggage compartment lid
>fuel filler door and
>glove compartment.
The central locking system is ready for
operation whenever the driver's door is
closed.
The central locking system can be
operated
>from outside via the door lock and
using the remote control
>from inside via the central locking
system button.
If it is operated from inside, the fuel
filler door will not be locked, refer to
page 34.
Operating it from outside simulta-
neously activates the anti-theft system,
which prevents the doors from being
unlocked via the door lock buttons or
the door release handles.
The central locking system unlocks
automatically in the event of an acci-
dent. In addition, the hazard warning
flashers and interior lamps come on.

31
Opening and closing – via the remote controlThe conceptThe remote control also provides two
additional functions beyond the central
locking feature:
>Switch on the interior lamps, refer to
page 32.
With this function you can also
search for your vehicle – when
parked in an underground garage, for
instance
>Open the luggage compartment lid,
refer to page 32.
The luggage compartment lid will
open slightly, regardless of whether it
was locked or unlocked.
Whenever you unlock or lock the vehi-
cle, you simultaneously deactivate/acti-
vate the anti-theft system and switch
the interior lamps on/off.
You can have a signal set to con-
firm that the vehicle's locks have
engaged securely. Since passengers or animals
remaining in the vehicle might be
able to lock the doors from the inside,
always take the vehicle's keys with you
so that the vehicle can be opened again
from the outside at any time.<
If it is no longer possible to lock
the vehicle via the remote control,
the battery is discharged. Use this key
while driving for an extended period in
order to recharge the battery. To pre-
vent unauthorized use of the remote
control, surrender only the spare key
when leaving the vehicle for valet park-
ing, for example.
In the event of a system malfunction,
please contact your BMW center. You
can also obtain replacement keys
there.<
1Unlocking and convenience opening
2Locking and securing, turning on
interior lamps,
3Opening luggage compartment lidTo releasePress button to unlock the driver's door
only.
Press the button twice in order to
unlock the entire vehicle. and the fully-automatic convertible top
open.
OverviewControlsMaintenanceRepairsDataIndex

39
Operating all windows at onceWith the ignition key in position 1 or
higher
>Press the switch until you feel resis-
tance: all of the windows will con-
tinue to lower as long as you con-
tinue to press the switch
>Press the switch briefly past the pres-
sure point: all windows will move
automatically. Pressing the switch
again stops the opening cycle.
You can close the windows in the same
manner by pulling the switch. The win-
dows cannot be closed automatically
using this switch.
For the convenience mode via the
remote control or the door lock, refer to
page 31 or 33.
After the ignition has been
switched offAfter the ignition has been switched off:
you can still use the electric power win-
dows for up to 15 minutes, as long as
no one opens any of the doors.Protective functionIf the closing force of a front window
exceeds a certain value as the window
is being closed, the closing procedure
is immediately interrupted and the win-
dow opens again slightly.
Despite this protective function,
you must still make sure that there
are no obstacles within the closing
range of the windows. Otherwise, it
cannot be guaranteed that the closing
procedure will be interrupted in certain
cases, e.g. when very thin objects are
in the closing range.
This protective function is deactivated
when the switch is pulled past the
resistance point and held there. nected, the protective function must be
reinitialized. Please contact your BMW
center.
Convertible topThe completely automatically operated
convertible top combines assured pro-
tection against the elements with sim-
ple and easy handling.
To gain maximum satisfaction from your
convertible, please observe the follow-
ing:
>It is advisable to close the convertible
top when the vehicle is being parked.
The closed convertible top not only
protects the passenger compartment
from unforeseeable damage from the
weather, it also provides a certain
degree of theft protection. In addi-
tion, keep valuables only in the
locked luggage compartment, even
when the convertible top is closed
>Never mount a roof-mounted luggage
rack on the convertible top
>At temperatures below 147/–106
do not operate the convertible top to
prevent damage.
Never store the convertible top in
its compartment for more than
one day while it is wet to avoid perma-
nent damage from moisture.<
Do not lay objects on the convert-
ible top, as they could fall off
when it moves, causing vehicle damage
or personal injury.<
Electric power windows
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40
Driving when the opening or clos-
ing process has not been com-
pleted can cause vehicle damage or
personal injuries.
Do not reach into the convertible top
mechanism during opening and closing.
Keep children away from the moving
parts of the convertible top during
operation.<
If possible, only operate the con-
vertible top with the vehicle
stopped, as otherwise the process may
be interrupted.
If you set the convertible top in motion
with the vehicle stationary and then
have to start suddenly – for instance, at
a traffic light – you can still complete
the operation by driving as slowly as
possible and again pressing and main-
taining pressure on the button.<
To close the electric power win-
dows while driving, always be
sure to first close either the rear win-
dows, or all 4 windows at the same
time, otherwise, at high speed, the win-
dows may not close tightly.<
At higher speeds, the ensuing
vacuum in the passenger com-
partment can cause the convertible top
to begin fluttering. Increase the air sup-
ply via the ventilation controls so that a
vacuum does not occur in the vehicle.<
Opening and closing1To close
2To open
To avoid placing unnecessary
loads on the battery, you should
avoid operating the top when the
engine is switched off.
Before closing the convertible top,
remove any objects from the windshield
frame that could keep the convertible
top from closing properly.<
With the ignition key in position 1 or
higher, and with the vehicle stationary
1. Read and comply with the preceding
safety precautions
Convertible top

67
Before exiting the vehicle with the
engine running, move the selector
lever into position N and apply the
parking brake.
Never leave the vehicle unattended
with the engine running. An unat-
tended vehicle with a running engine
represents a safety hazard.<
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 discharg-
ing, always deactivate electrical
devices that are not in use. Switch the
ignition off when the vehicle is not
being driven.
Starting the engine and driving off
OverviewControlsMaintenanceRepairsDataIndex

94
Rear reading lampsWith the hardtop reading lamps are also
located in the rear, refer to page 115.
Switch on and off with the button adja-
cent to each lamp.
In order to prevent battery dis-
charge, all of the lamps in the
vehicle are automatically switched off
approx. 15 minutes after you turn the
ignition key to position 0.<
Light-emitting diodesLight-emitting diodes (LEDs) installed
behind translucent lenses serve as the
light sources for many of the controls
and displays in your vehicle. These
light-emitting diodes are related to con-
ventional lasers, and legislation defines
them as light-emitting diodes, Class 1.
Do not remove the protective lens
and avoid staring directly at the
unfiltered beam for several hours, as
inflammation of the retina could
result.<
Reading lamps