1998 BMW CONVERTIBLE change key battery

30
1 Master key with battery-powered
lamp (switch on by pressing the BMW
symbol).
2 Master key without lamp.
3 Spare key to be kept in a safe place
e. g. in your wallet. This key is not
intended for continuous use.
4 Door and ignition key
This key does not operate the locks
for the glove compartment and the
luggage compartment. This is useful
e. g. at a hotel.The electronic vehicle immobilization
unit increases the anti-theft protection
of your BMW Ð without additional
adjustment or activation of systems.
This electronic immobilization system is
designed to reduce the susceptibility of
the vehicle to theft by making it impos-
sible to start the engine using any
means other than the special keys fur-
nished with the vehicle.
The system features an electronic chip
integrated within the key as a supple-
ment to the conventional mechanical
locking system.
The lock mechanism itself is actually a
dual-function device, simultaneously
serving as a communications interface
designed to allow the car security sys-
tem to maintain a continuous stream of
variable, vehicle-specific signals with
the electronic circuitry in the key. The
ignition, the flow of fuel and the starter
are enabled only after the key has been
recognized as "authorized".
b
External force can damage the
electronic circuitry integrated in the key.
Such a key can no longer be used to
start the engine.c
Replacement of a keyReplacement keys are available exclu-
sively through your authorized BMW
Retailer, who is also under obligation to
request verification of vehicle owner-
ship before issuing a substitute key.
Your BMW Retailer can also cancel or
restore the electronic system authoriza-
tion for individual keys (e.g., if a key is
lost). A deactivated key can no longer
be used to start the engine.For US owners onlyThe transmitter and receiver units com-
ply with Part 15 of the FCC (Federal
Communication Commission) Regula-
tions. Operation is governed by the fol-
lowing:
FCC ID: LXBEWS
As defined in the regulations, such a
device is not to emit significant interfer-
ence and must also be shielded against
interference from external sources to
prevent unauthorized or inadvertent
activation.a
Any unauthorized modifications
or changes to these devices could void
the userÕs authority to operate this
equipment.c
14
BMW
BMW
BMW
BMW
23
365de122Keys Electronic vehicle immobilizer

87
At a glanceControls Car careRepairsTechnicalDataIndex
BMW ConvertibleThe switches for the map reading lamps
next to the interior lamp are operated in
the same manner as the interior lamp
switch.
The seat cushion and backrest can be
heated at ignition key position 2.
Press the switches with the heating
symbols:
To switch over while heating: press the
dimly lit switch.
To switch off prematurely: press the
brightly lit switch.This ventilates the vehicle's interior and
lowers its temperature using the heater
or the air conditioner fan.
The system is operated by the onboard
computer, refer to page 77.
You can set the time for the system to
start; it will remain active for 30 min-
utes. You can also turn it on and off
directly.
As the system uses a substantial
amount of electric current, you should
refrain from activating it twice in suc-
cession without allowing the battery to
be recharged in normal operation
between use.
The independent ventilation is available
for use when the outside temperature is
above 60 5F (166), but not when driv-
ing.
The air comes out through the vents for
the upper body area. The vents must
therefore be open for the system to
operate. Rapid heat-up as long as the
switch lights up brightly. Auto-
matic changeover to regular
heating.
Heating as long as the switch
lights up brightly. The heater
switches off automatically.
360de026
Interior lamps Seat heating*Independent ventilation*

93
At a glanceControlsCar careRepairsTechnicalDataIndex
BMW Hi-Fi System (Harman/
Kardon)1On
2Off
In the "On" position, the listener is given
the impression of a considerably larger
passenger compartment with an
improved stereo effect in all seats.
This function should be switched off in
the case of poor radio reception due to
the frequent changes between stereo
and mono which result.
BMW Convertible:
You do not have to operate the con-
trols. The system detects whether the
top is open or closed and regulates the
sound automatically.
To openPress the button and fold down the
door.
The glove compartment lamp switches
on from ignition key position 1.To closeFold up door.To engage locksOnly possible with a master key. a
To reduce the risk of injury, always
close the glove compartment immedi-
ately after use.c
Rechargeable flashlightThe connection for the rechargeable
flashlight is located on the left side of
the glove compartment.
The flashlight features overcharging
protection, so it can be left in its holder
continuously.
However, it must be removed when the
battery is disconnected or removed.a
Ensure that the flashlight is off be-
fore inserting it in its holder.c
HIFI
1
2
360de057
360de058
BMW Hi-Fi System*Glove compartment

14 5
At a glanceControlsCar careRepairsTechnicalDataIndex
Luggage compartment lamps BMW Sedan, Coupe
10 watt bulb
Lamp on underside of rear shelf:
dUse a screwdriver to pry out the lamp
at the recess.
dReplace bulb.
BMW Convertible:
5 watt bulbs
There is one lamp each in the bulb cov-
ers of the rear lamps.
dUse a screwdriver to pry out the lamp
at the recess.
dReplace bulb.Glove compartment lamp 5 watt bulb
dUse a screwdriver to pry out the lamp
forward.
dReplace bulb.Footwell lamps
*
5 watt bulb
dUse a screwdriver to pry the lamp out
of the lower instrument panel trim.
dReplace bulb.
Replace batteryIf lamp intensity drops, renew the bat-
tery to safeguard against acid escaping.
To change the battery, use a screw-
driver to remove the cover on the back
of the key.
Insert a new battery of the same type
(CR 2025) - as shown in the picture - so
that it touches the contacts.
Snap the cover back on and press it in
evenly.A
Bring old batteries to a collection
point or your BMW Retailer.c365de132
Bulb replacement Master keys

170
Note: This index does not correspond to the original manual in all details
AABS (Antilock Brake
System)
103
Acceleration values
163
Activated charcoal filter
92
Adjusting steering wheel 45
Air conditioner
91
Air distribution 90
Air pressure
111
Air supply
92
Airbag
50
Aluminum wheel
115
Antifreeze
105
, 127
Antifreeze,
Radiator
105
, 127
Antifreeze,
radiator
127, 105
Anti-lock braking system
ABS
103
Aquaplaning
100
, 111
ASC+T Automatic stability
control plus
Traction
Traktion
10
, 84
Ashtray
94
AUC Automatic
recirculated-air control
91
Automatic car washes
131
Automatic recirculated-air
control AUC
91
Automatic stability control
plus traction
ASC+T
10
, 84Automatic transmission
58
Capacity
166
Filling capacity
166
Autoradio
108
Average fuel
consumption
79
Average speed 78
Axle load, permissible
163
BBackrest unlock
45
Backup lights
57
, 143
Battery
149
, 167
Removal and
installation 150
Symbols
149
Battery capacity
167
Battery change
Key
145
Battery charge current
20
Battery electrolyte
149
Battery, discharged 153
Belts
47
blower 92
BMW Convertible
Car wash
136
Care
136
Electrical
Convertible top
actuation
39
Emergency closure
41
Fully automatic
Convertible top
actuation
39Hardtop
109
Manual convertible top
Actuation 41
Manual convertible top
actuation 37
Rear window
Ventilation 91
, 105
Rollover protection
system
52
Ski bag 97
Storage compartment
95
Vehicle
decommissioning
137
BMW Convrtible
Electrical windows
Lifters
36
BMW Hi-Fi System
93
BMW Sport seat
44
Brake fluid
128
Brake lights,
Replace bulbs
143
Brake pads
20
Brake system hydraulic
circuits
21
Brake-in procedure
100
Brakes
104
Defects 128
Interference
105
Braking system 105
Breaking in vehicle
100
Bulb replacement 141
CCar battery
149
Car wash
131
CARB OBD II interface
24
Care of upholstery
134
Care of wool velour 134
Care, exterior
132
Care, interior 133
Care, vehicle exterior
132
Catalytic converter
102
Cellular phone
108
Center armrest 95
Central brake light
143
Central locking system
31
Central locking system
button
32
Central locking unit
31
Changes,
technical
6
Charge-current indicator
light
20
Charging the battery
150
Check air pressure
25
Check control
71
Check Control with outside
temperature gauge and
digital clock 74
Check engine oil level
124
CHECK key
71
Check oil level 124
Childproof door locks
52
Child-restraint system 48
Cigarette lighter
94
Everything from A to Z

173
At a glanceControls Car careRepairsTechnicalDataIndex
Note: This index does not correspond to the original manual in all detailscomponents
105
SSAFETY DEFECTS
7
Seat heaters
87
Seat, electric 44
Seat, mechanical
43
Seatback release 45
Seatbelts
47
Seats, adjustment
43
Selector lever, automatic
transmission
58
Service Interval Display
64
Shift programs
59
Side airbag
50
Sliding
106
Sliding/tilt sunroof
36
Close in case of electrical
fault
152
Slippery roads
105
Snow chains
105
Spare key
30
Spare keys 30
Spare tire 112
, 146
Spark plugs
167
Special oils 125
Speed warning activation
threshold 80
Sport seat 44
Start
54
Start the engine
Preheating
54
Starting assistance
153Starting problems
102
Steel wheel
115
Steering
128
Steering lock
54
Steering wheel lock
54
Stopwatch
80
Storage shelves
93
Summer tires
113
Sun visor
46
Switching off the engine
55
Switching off the vehicle 55
Symbols
4
Battery 149
TTachometer
63
Tailgate
33
Taillights 143
Taillights,
Replace bulbs
143
Tank cover
Unlock in case of
electrical fault 152
Technical Data 160
Technical data 160
Telephone
108
Temperature 91
Temperature display
66
Temperature layering 92
Tempomat
62
Thigh support
Ajustment 44
Third brake light
143Through loading system
95
Timer
81
Tire change
146
Tire damages 111
Tire inflation pressure
25
,
111
Tire inscription
113
Tire replacement 112
Tire sizes
115
Tire tread 111
Tool kit
140
Tools
140
Tow starting
154
Towing
154
Towing eyelets
154
Track
161
Trailer load, permissible
163
Trailer nose weight,
permissible
163
Transmission 57
Traveling abroad
102
Tread depth, tires 111
Trip
63
Trip distance recorder
63
Trip odometer
63
Trunk
Capacity
163
Trunk lights,
Replace bulb
145
Turn on
54
Turn signal indicator
60
Turn signal,Replace bulb
142
Turn signals
143
Turning circle 161
Turning radius 161
UUnloaded vehicle weight

163
Unlocking and locking doors

31
Used batteries
150
VVehicle care, interior
133
Vehicle decommissioning

137
Vehicle identification
129
Vehicle identification
number
129
Vehicle immobilization unit

30
Vehicle paintwork
132
Vehicle weight
163
Ventilate at a standstill
81
Ventilation, draft free
92
WWarm feet - cool head
92
Warning
71
Warning Light-On
85
Warning lights
20
Washer fluid
Add
124
Fill up 166
Washer fluid reservoir
Everything from A to Z

175
At a glanceControls Car careRepairsTechnicalDataIndex
Note: This index does not correspond to the original manual in all details
AAdd coolant 127
Adding oil 125
Adjusting washer
nozzles 124
Antifreeze, use 127BBackup lamp,
replace bulb 143
Battery,
charging 150
Battery change,
master key 145
radio remote control 145
Battery,
add distilled water 149
discharged 153
Brake fluid, add 128
Brake lamps,
replace bulb 143
Brakes, defects 105CCheck air pressure 24
Check Control 70
Check engine oil level 124
Coolant, add 127DDefrost windshields 91
Difficult steering 129Door, emergency
actuation 32
EElectrical fault
Sliding/tilt sunroof 152
Fuel filler door 152
Emergency actuation,
Door 32
Sliding/tilt sunroof 152
Fuel filler door 152
External starts 153FFailure messages 70
Failure of an
electrical device 151
Fault displays 70
First aid 21
Fittings, tow-starting and
towing 154
Flat tire 146
Foglamps,
replace bulb 142
Footwell lamp,
replace bulb 145GGlove compartment lamp,
replace bulb 145
HHazard warning system 21
Hazard warning triangle 21
Headlamp cover, care 141
Help in case of a
breakdown 153
High beam headlamps,
replace lamps 141IIndicator lamps 19
Inflation pressure 24
Interior lamps,
replace bulbs 144KKey, battery change 145LLicense plate lamp,
replace bulb 144
Low beam headlamps,
replace lamps 141
Luggage compartment lid,
emergency actuation 32
Luggage compartment
lamps, replace bulb 145MMaintenance 63OOnboard tool kit 140
PParking lamp,
replace bulb 141
Power steering,
add oil 128
Pressure, tires 24
Protective glazing,
care 131RRear foglamps,
replace bulb 142
Remove mist on
windshields 91
Replace bulbs 141
Replace fuses 151SSliding/tilt sunroof,
close in case of power
supply interruption 152
Snow chains 105
Starting difficulties 102, 153
Starting with a discharged
battery 153TTaillamp 143
Taillamp,
replace bulb 143
Tire change 146
Tire damage 111
Tools 140
Owner service procedures from A to Z