1998 BMW CONVERTIBLE engine

61
At a glanceControls Car careRepairsTechnicalDataIndex
0 Wipers retracted
1 Intermittent wipe
2 Normal wipe
3 Fast wipe
4 Brief wipe
5 Automatic windshield washer
1 Intermittent wipe The length of the interval is varied auto-
matically according to the car's actual
road speed.
The headlamp cleaning equipment
* can
also influence this interval.
dShift briefly out of 0 into 1, and back
to 0.
dThe time lapse until the switching on
(out of 0 into 1) is the desired interval
(maximum 25 seconds).
Delete the programming:
dapprox. 10 seconds after the lever is
in position 0 or
dafter switching off the engine.
2 Normal wipeThe wipers automatically revert to inter-
mittent operation when the vehicle is
stationary.5 Automatic windshield washersThe system sprays washer fluid against
the windshield and actuates the wipers
for a brief period.
(Exception: If you pull the lever briefly,
the system sprays fluid onto the wind-
shield without activating the wipers).
a
Do not use the washers when there
is a danger of the fluid freezing on the
windshield, as otherwise your vision
could be obscured. Use antifreeze (refer
to page 124).
Do not use the washers when the reser-
voir is empty, otherwise damage to the
washer pump could result.c
Windshield washer jets
*
The windshield washer jets are auto-
matically heated with the ignition key in
position 2.
123
40
5
360us305Wiper/washer system

62
You can store and automatically main-
tain any desired vehicle speed above
approx. 25 mph (40 km/h).
The stored speed is deleted when the
motor is switched off.
1 Accelerate Tap the lever briefly:
The system records and maintains the
current vehicle speed. Every time you
tap the button the speed increases by
approx. 0.6 mph (1 km/h).
Hold the lever in this position:
The vehicle accelerates without pres-
sure on the accelerator pedal. As soon
as you release the lever, the system
records and maintains the current
speed.
2 DecelerateHold the lever in this position:
With the cruise control active, the system
automatically reduces the throttle open-
ing to slow the vehicle. As soon as you
release the lever, the system records and
maintains the current speed.
Tap the lever briefly:
Each time you tap it you decelerate
approx. 0.6 mph (1 km/h) if you are
cruising at a controlled speed.3 ResumeTap the lever briefly:
The vehicle accelerates to and main-
tains the last speed stored.4 OffTap the lever briefly:
Immediately deactivates the cruise con-
trol.
In addition, the system is also automati-
cally disabled in response to the follow-
ing conditions:
dWhen you apply pressure to the
brake or clutch pedal, and when you
move the automatic transmission
selector lever from Drive to Neutral,
dif you exceed the programmed speed
by more than 10 mph (16 km/h) for a
period of more than 30 seconds.The system is switched off and the
stored speed deleted from its memory
when you turn the ignition key to posi-
tion 0.
a
Refrain from using the cruise con-
trol on twisting roads, when high traffic
density prevents driving at a constant
speed and when driving on slippery
(snow, rain, ice) or loose (stones, sand)
road surfaces.c
b
If, on a downhill gradient, the
engine braking effect is not sufficient,
the controlled speed can be exceed-ed.
Speed can drop on uphill grades if the
engine output is insufficient.c
360de063Cruise control*

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At a glanceControls Car careRepairsTechnicalDataIndex
Records the total vehicle mileage
(registers distance in kilometers on
Canadian vehicles).Trip odometerRecords trip distances up to 999.9 miles
(kilometers).To reset to zeroPress button.
The displays appear from ignition key
position 1.
To display with ignition switched off:
Press the reset button (arrow).Never allow the engine to operate with
the needle in the red overspeed sector
of the gauge.
In this range the fuel supply is inter-
rupted to protect the engine, producing
the sensation of a loss of power.Indicates the current fuel consumption
in mpg (in liters per 100 km on Cana-
dian vehicles).
When the vehicle is stationary, the nee-
dle returns to zero (maximum reading
on Canadian models).
2040
120
140
km/h
240 220 200 180 160
140
120
100
80
60
40
20MPH
F360us320
360us030
360us031
Odometer Tachometer Energy control*

64
When you switch on the ignition, the
indicator lamp comes on briefly to indi-
cate that the system is operational.
If the indicator lamp comes on and
stays on, there are approx. 2.1 gallons
(8 liters) of fuel in the tank.
Tank volume: Page 166.
If the tilt of the vehicle varies, e.g.,
when you are driving in mountainous
areas, this may cause the needle to
fluctuate slightly.
a
Please refuel early, as driving
to the last drop of fuel can result in
damage to the engine and/or catalytic
converter.c
BlueThe engine is still cold. Drive at moder-
ate engine and vehicle speeds.RedIndicator lamp comes on, the warning
"COOLANT TEMPERATURE" appears
in Check Control
*: engine overheated.
Switch off the engine immediately and
allow it to cool down.
Between the blue and red sectorsNormal operating range. It is not un-
usual for the needle to rise as far as the
edge of the red sector in response to
high outside temperatures or severe
operating conditions.
Checking coolant level: Page 127.
Green lampsThe number of illuminated lamps
decreases as the time for your next
maintenance visit approaches.Yellow lamp This field appears together with
OILSERVICE or INSPECTION.
Maintenance is due. Please contact
your BMW Retailer for an appointment.Red lampMaintenance overdue.
F
R
12
UNLEADED GASOLINE
ONLY
360us032
360de007
360us009
Fuel gauge Coolant temperature Service Interval Display

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*

82
Switch on directlyAvailable only with ignition key at posi-
tion 1.
Key sequence as in illustration.Switch off directlyIn ignition key position 1: key sequence
as in the illustration.
In ignition key position 0: press only the
key SET/RES.
Enter codeIn addition to electronic vehicle immo-
bilization (refer to page 30), you can
attain further engine immobilization or
protection against tampering by enter-
ing a code into the onboard computer.
A code number is used to arm the sys-
tem. The code is then required for sub-
sequent starting attempts. Always
remember the code number.To set (ignition key in position 1):
Press the keys in the sequence illus-
trated and then turn the ignition key into
position 0 or remove the key.
Code numbers from "0000" to "9999"
can be entered. (You will have to re-
enter the code each time you activate
the system).
The LED lights up for up to 36 hours
with the ignition key in position 0 or with
the key removed. If the LED flashes for
10 seconds the engine hood has not
been closed or the radio has been
removed.
To cancel with ignition key in position 1
or 2:
A gong and the display "---- Code"
request you to enter a code.
dUse entry keys to enter the code
number
dPress the SET/RES key
dStart the engine.
The system responds to attempts to
start the vehicle using an incorrect code
or no code at all by preventing the
engine from starting.
2
1TIMER
km/mls
MEMOSET/RES 1000 100
10 1
SPEED CONSUM TEMP DIST CHECK CLOCK
DATE
LIMIT RANGE CODE
360us313
360us122
Onboard computer*

84
Automatic Stability Control plus
Traction (ASC+T)This system is designed to enhance
operating stability, especially while
accelerating and during cornering.
ASC+T automatically assumes opera-
tion each time you start the engine.
The indicator lamp in the instrument
cluster goes out shortly after you switch
on the ignition.
To deactivate the systemPress the button; the indicator lamp
comes on.To reactivate the systemPress the button again; the indicator
lamp goes out.Indicator lamp flashesThe system is actively regulating drive
torque in response to monitored vehicle
operating conditions.Indicator lamp fails to go out after
the engine is started, or comes on
in the course of normal vehicle
operationThe system has a defect. The vehicle
normally remains operational even with-
out ASC+T. Consult your authorized
BMW Retailer for repair.When ASC+T is switched off, you drive
with a conventional drive system. We
recommend that you deactivate the
system for increased traction
dwhen rocking the vehicle or starting
off in deep snow or on loose surfaces
(refer to "Starting off", page 10 5)
dor when driving with snow chains.
b
But even with ASC+T the laws of
physics can not be suspended. Any
consequences arising from traction loss
due to excessive vehicle speed remain
the responsibility of the driver. We
therefore urge you to avoid using the
additional safety margin of the system
as an excuse for taking risks.c
For more details, please refer to section
"Advanced Technology" on page 156.
ASC
360de064ASC+T

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At a glanceControls Car careRepairsTechnicalDataIndex
To defrost windshield and door
windows
Air conditioner Circulated air mode/Automatic
recirculated air control (AUC)
*
Press the button repeatedly to run
through the following control sequence:
dIndicator lamps off: outside air flow
operational.
dLeft-hand indicator lamp on Ð AUC
mode: the system detects pollutants
in the outside air and responds by
deactivating the outside air flow as
required. The system then recircu-
lates the air currently within the vehi-
cle.
dRight-hand indicator lamp on: the
flow of outside air into the vehicle is
permanently blocked. The system
then recirculates the air currently
within the vehicle.a
If the windshields fog over in circu-
lated air mode, switch off the circulated
air mode/Automatic recirculated air
control and increase the air supply. if
necessary.c
Rear window defrosterBMW Convertible: Heated rear-window
blower.
The rear-window blower is always
switched off with the convertible top
down.
When the hardtop
* is in place, press
the rear-window heating button.
Temperature
This program is designed for
rapid removal of ice and con-
densation from the windshield and side
windows.
The air conditioner cools and
dehumidifies incoming air
before reheating it to the selected tem-
perature.
Depending on the weather, the wind-
shield may fog over briefly when the
engine is started.
Switching off the air conditioner at out-
side temperatures below approx. 41 5F
(56) will prevent the windows from
fogging up.
Frequently switching the air condi-
tioner on and off may also promote the
formation of condensation on the win-
dow surfaces.
b
Condensation forms in the air
conditioner system during operation,
which then exits under the vehicle. It is
not unusual for a small puddle to form
there.c
You can respond to unpleas-
ant odors in the outside air
by temporarily excluding the outside air.
The system then recirculates the air
currently within the vehicle.
A
The indicator lamp comes
on to confirm that the rear
defroster is operating.
The defroster switches off automatically
after approx. 15 minutes.
On both the driver's and the
passenger's side you can
adjust the specific temperature. The fig-
ures in the display provide a general
indication of interior temperature. We
recommend 70 5F (226) as a standard
setting for comfortable travel, both with
and without the air conditioner. When
you start the vehicle, the system
ensures that the selected temperature
is achieved as quickly as possible and
maintained at a constant level by the
control.
Automatic climate control