1998 BMW CONVERTIBLE technical data

73
At a glanceControls Car careRepairsTechnicalDataIndex
After a power failureThe time display flashes and the follow-
ing appears in the left display: enter
time.
dEnter the time with the entry keys.
dPress the SET/RES key. The clock
starts.
The left display shows: enter date.
dEnter the date with the entry keys.
dPress the SET/RES key.
dConfirm the year by pressing the
SET/RES key or correct it with the
entry key and complete the number
entry by pressing the SET/RES key.
To reset the timePress the CLOCK key until the left dis-
play indicates: Enter time. The dots
flash.
Complete the number entry by pressing
the SET/RES key.
To reset the datePress the DATE key until the left display
indicates: Enter date. The dots flash.
Complete the number entry for the date
and year by pressing the SET/RES key.
If necessary, enter the year before
pressing the SET/RES key, as
requested in the display. Leap years are
programmed into the system and there-
fore need not be taken into account.
360de146
SET/RES CLOCK1000 100
1
10
360de146
SET/RES DATE1000 100
1
10
Check Control*

75
At a glanceControls Car careRepairsTechnicalDataIndex
Display outside temperaturePress TEMP key.
If the outside temperature drops below
37.5 5F (+36), a warning signal sounds,
the temperature display automatically
appears and flashes for 8 seconds.
The warning is repeated whenever the
temperature has increased to 43 5F
(+66) at least once before falling to
37.5 5F (+36) again.a
The temperature warning device
does nothing to alter the fact that sur-
face ice can still form at temperatures
above 37.5 5F (+36), e.g., on bridges
and on shade-covered road surfaces.c
EntriesAll numbers for the time and date are
entered with the entry keys according
to the following principle:
The numbers can be entered in any
order. Each time the key is pressed, or
for each half second the key is held
down, the numerical value increases by
one.
After a power failureThe time display flashes and the follow-
ing appears in the left display: "Enter
time".
dEnter the time with the entry keys.
dPress the SET/RES key.
The clock starts.
The left display shows: Enter date.
dEnter the date with the entry keys.
dPress the SET/RES key.
dConfirm the year by pressing the
SET/RES key or correct it with the
entry key; complete the number entry
by pressing the SET/RES key.
AM
360us322
1000 1001 10
Check Control with outside temperature display and digital clock*

77
At a glanceControls Car careRepairsTechnicalDataIndex
Allows you to select display data for
safe and economical driving.
If your car is equipped with the Check
Control option, texts with information
and warnings are used to alert the
driver to system malfunctions. In addi-
tion, an indicator lamp is provided in the
instrument cluster. For details and
operating instructions, refer to
pages 71 and 72.
With the digital clock you can
ddisplay the time and date,
dpre-program a reminder signal
(memo), e.g., to remind you of news
broadcasts.
Refer to page 74 for information and
details on using the digital clock.1 Display
2 Arrival time
3 Entry keys for numerical values
4 Information keys
For the onboard computer version
without Check Control, pressing the
CHECK key simply activates all dis-
play elements.
5 Light-Emitting Diodes (LEDs)
6 Scale selection key
7 SET/RES key (start/stop)360us112Onboard computer*
Standard displays (no previous
data entries required)
Page
TEMP outside
temperature 78
RANGE estimated cruising
range 79
SPEED average speed 78
CONSUM 2 levels of average
consumption 79
With previous data entriesDIST distance remaining
to destination with
estimated
arrival time 79
LIMIT speed limit warning 80
The following systems are controlled by
the onboard computer: Page
TIMER Ð 2 switch-on times
for independent
ventilation 81
Ð independent
ventilation in direct
operating mode or 82
Ð timer 80
CODE immobilization/
protection from
misuse 82
The onboard computer operates at igni-
tion key positions 1 and 2.

79
At a glanceControls Car careRepairsTechnicalDataIndex
Estimated cruising rangeDisplays the estimated travel range
based on the remaining fuel. The value
takes into account the way in which
way the car has been driven.
Data request: press RANGE key.
A plus symbol (+) in front of the value
indicates that the cruising range is still
being corrected (measuring tolerance).
If three segments flash in the display,
the cruising range is less than 9 miles
(15 km) and the car should be refueled
as soon as possible.
When you refuel, the onboard computer
registers the action only
dif the fuel amount is over 1.2 gallons
(approx. 4 liters).
dthe engine is switched off.
Average fuel consumptionThe computer can calculate average
fuel consumption rates simultaneously
for two distances, e.g., for an entire
journey and for a single section of it.
To start calculations for distance 1:
Key sequence as in illustration.
To start calculations for distance 2:
Repeat key sequence as in illustration.
Data request: press CONSUM key.
Press the key repeatedly to switch
between the average consumption of
the 1st and 2nd section of the journey.
At the same time, the display also indi-
cates which consumption (1 or 2) is cur-
rently indicated.
Distance remaining to destinationDisplays the distance to the destination.
Available only if the total distance was
entered before the start of the journey.
Enter the distance:
Key sequence as in illustration.
Data request: press DIST key.
At the same time, the estimated time of
arrival is displayed, which is continuously
calculated in accordance with the driving
style.
Any additional mileage extending
beyond the total defined in the initial
entry is indicated by a minus sign.
To change scale:
Press the km/mls key once
dto change the distance
or twice to also
dchange the arrival time.
360us116
360us117
360us118
Onboard computer*

81
At a glanceControls Car careRepairsTechnicalDataIndex
To stop:
When the time is displayed:
dPress the SET/RES key.
If other information is displayed:
dKey sequence as in illustration.
Take intermediate time:
dPress the TIMER key.
The LED flashes, the intermediate time
is displayed and the timer continues to
run.
Display time again:
dPress the TIMER key again.b
The timer stops with the ignition
key in position 0 and runs again in posi-
tion 1.c
Independent ventilation
*
To enter activation times
You can select two starting times for
independent ventilation. After 30 min-
utes the ventilation shuts off again auto-
matically.
Refer to page 87 for important informa-
tion on using the independent ventila-
tion system.
When you press the TIMER key, the
current status of the ventilation appears
in the display.Enter a switch-on time:
Before you can enter data, the ignition
key must be at position 1 and the digital
clock must be visible in the display.
Repeat key sequence as in the illustra-
tion. (Press the TIMER key twice).
Enter the second switch-on time:
Repeat key sequence as in illustration.
Correct the entered time:
Repeat the key sequence as shown in
the illustration, but enter a different
time.
After you enter the time, an asterisk
*
appears in the display and the LED
lights up, so that you can ascertain that
a switch-on time has been selected.
During ventilation the LED blinks. It
goes off when you turn the switch off.
Request a previously selected time
(LED lights up):
dFor the first switch-on time, press the
TIMER key twice.
dFor the second switch-on time, press
the TIMER key three times.
360us311
Onboard computer*

83
At a glanceControls Car careRepairsTechnicalDataIndex
Remote controlYou can use the turn signal lever to
select various display sequences for
computer data following entry.
To enter:
dKeep the turn signal lever depressed
until "Prog 1"
appears in the display.
dPress the keys in the sequence in
which you want the information to be
displayed.
Each time you store data, the pro-
gram number in the display changes.
dPress the SET/RES key.If you wish to display all data:
dKeep the direction indicator
depressed until "Prog 1" appears in
the display.
dPress the SET/RES key.
b
For average fuel consumption 1
and 2 please note the following: If, for
example, both consumptions are to be
displayed, the CONSUM key must be
pressed twice. If, for example, con-
sumption 2 is to be displayed (not con-
sumption 1), press the km/mls key after
pressing the CONSUM key (pressing
the km/mls key repeatedly switches
between consumption 1 and 2 as often
as desired).
Proceed in a similar manner for switch-
on times 1 and 2 for the independent
ventilation
*.c
Data request:
Briefly tap the turn signal lever each
time.
R
L
360de083Onboard computer*

85
At a glanceControls Car careRepairsTechnicalDataIndex
Parking lampsDLow beamsLIGHTS ON warning
When you turn the ignition key to 0, a
buzzer sounds for a few seconds after
the driver's door has been opened, if
the lamps have not been turned off.
On vehicles with alpha-numeric Check
Control
*:
This warning comes through the Check
Control, refer to page 71.
Daytime-running lamps switch
*
If desired, the lighting switch can be left
in the second position: when the igni-
tion is switched off, the external lighting
is also switched off.
On vehicles with daytime running fea-
ture, the lamps come on whenever the
ignition key is turned to position 2 with
the headlamp switch remaining at 0.Adjust the illumination intensity by turn-
ing the rotary dial.
E
When you switch off the ignition
without turning off the head-
lamps, only the parking lamps
stay on.
When you return the ignition key to
position 0, a buzzer sounds for a few
seconds to remind you that the lamps
have been left on.
0
360us312
360us323
Parking lamps/low beams Instrument lighting

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*