1998 BMW CONVERTIBLE oil temperature

Controls and features MaintenanceAt a glanceControls Car care Repairs Technical Data Index

19
1 Fuel gauge with low-fuel
warning lamp 64
2 Indicator lamp for turn signals 20
3 Speedometer
4 Indicator and warning lamps for

d

Battery charge current 20

d

High beams 20

d

Engine oil pressure 20
5 Tachometer 63
Energy control 63
6 Coolant temperature gauge 64
7 Indicator and warning lamps for

d

Brake pad wear 20

d

Brake system hydraulics 21

d

Parking brake 21

d

Airbag 50
8 Indicator lamp for ASC+T 20
9 Indicator and warning lamps for

d

Automatic transmission

*
20

d

Warning lamp for Check Control

*

71

d

Please fasten seat belts

*
21

d

ABS 20
10 Trip odometer 63
11 Service Interval Display 64
12 Odometer 6313 Indicator lamps for

d

Foglamps

*
20

d

Emissions-related systems
indicator 21

d

Rollover protection system

*
21
14 Trip odometer reset button 63

Instrument cluster

55
At a glanceControls Car careRepairsTechnicalDataIndex
When starting a cold engine at extreme-
ly low temperatures (+55F/-156 or be-
low) or at high altitudes (above 3,300 ft./
1,000 meters), proceed as follows:
dAt the first attempt, keep the starter
engaged for a bit longer (approx.
10 seconds).
dPress the accelerator pedal halfway
down while engaging the starter.
If you operate the vehicle for longer
periods of time at high altitudes and
very low temperatures, put into the
engine an oil with a viscosity of 5WÐ30
(refer to page 126). Please contact your
authorized BMW Retailer for additional
information.a
Never allow the engine to run with
the vehicle standing in an enclosed ar-
ea. The exhaust gases contain carbon
monoxide, an odorless and colorless,
but highly toxic gas. Breathing the ex-
haust gases poses an extreme health
risk, and can lead to unconsciousness
and death.
Never leave the vehicle unattended with
the engine running, as such a vehicle
represents a serious potential safety
hazard.cTurn the ignition key to position 1 or 0.
a
Always remove the ignition key
and engage the steering lock before
leaving the vehicle.
Vehicles with manual transmission:
Always engage the parking brake when
parking on slopes and inclined surfaces,
since selecting 1st gear or reverse may
not provide adequate resistance to roll-
ing.
Vehicles with automatic transmission:
Place the selector lever in Park.c
Starting the engine Switching off the engine

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

12 6
a
Continuous exposure to used oil
has caused cancer in laboratory testing.
Any skin areas that come in contact with
oil should be thoroughly washed with
soap and water.
Always store oil, grease, etc., out of
reach of children. Observe all warning
labels and information on lubricant
containers.
If you use SAE 15W-40 engine oil in low
temperatures below 145F (-10 6) the
engine may become difficult to start.c
*Special engine oils individually
approved by BMW are the most suited
to your engine. Please contact your
BMW Retailer for details..Engine oil
Special - Oils* most preferable
15W - 40
5W - 30
30
20
10
0
-10
-20
-30-20 0 20 40 60 80 °C°F
APISERVICESG
ENERGYCONSERVINGII
SAE
5W-30
365us312

13 2
Exterior finishTo provide effective corrosion protec-
tion, multilayer paintwork is applied at
the factory. Cataphoretic immersion
priming techniques are supplemented
using special body-cavity protectants,
with the application of specially-devel-
oped and extensively tested materials.
The entire underbody is sprayed with a
flexible PVC layer before final compre-
hensive application of a wax-based
protectant.
Regular maintenance makes an impor-
tant contribution to maintaining the
safety and value of your vehicle.
Increasing awareness of the effects of
harmful environmental factors on vehi-
cle finishes have led paint and vehicle
manufacturers to initiate ongoing pro-
grams designed to further improve the
durability of their finishes. Despite the
high quality of the resulting products,
local and regional factors can still have
a negative effect on your car's paint-
work. These should guide you in deter-
mining the frequency and extent of your
efforts to maintain the vehicle finish.
Depending upon material and type of
impact (perforation of paint layer), phys-
ical stresses from sand, road salt,
gravel, etc. can cause corrosion to start extending beneath the finish, starting at
the point of impact.
Road dirt, tar spots, dead insects, ani-
mal droppings (strong alkali effect) and
tree excretions (resins and pollen) all
contain substances capable of causing
damage when allowed to remain on
your car's finish for any period of time
(spots, etching, flaking, separation in
the top coat).
In industrial areas, deposits from ßy ash,
lime, oily soot, sulphur dioxide in pre-
cipitation (acid rain) and other environ-
mental pollutants will damage the car's
surface (usually limited to the external
horizontal surfaces) unless adequate
protection is provided.
In coastal regions, high levels of atmo-
spheric salt and humidity promote cor-
rosion.
In tropical zones, temperatures of over
100 5F (approx. 406) in the shade pre-
vail, in addition to heavy ultraviolet radi-
ation and high humidity. Under those
circumstances, light-colored paints
reach temperatures of up to 175 5F
(approx. 806) and dark paints up to
250 5F (approx. 1206).
Caring for the vehicle finishAs a precaution against damage result-
ing from exposure to aggressive sub-
stances, we recommend that you wash
the car weekly when it is used in an
area with high levels of air pollution or
aggressive natural substances (tree
resin, pollen).
Remove particularly aggressive sub-
stances immediately in order to prevent
changes to, and discoloration of, the
paint. Such substances are e.g., gaso-
line spilled during refueling, oil, grease,
brake fluid and bird droppings.
Any contamination remaining on the
surface of the vehicle will be especially
conspicuous after washing. Use clean-
ing fluid or alcohol with a clean cloth or
cotton pad to remove. You can use tar
remover to remove any spots on the fin-
ish of the vehicle, but should never
apply it or any other aggressive
cleanser to lenses or headlamp covers.
These areas should then be waxed to
maintain protection.b
A full range of car-care products is
available from your BMW Retailer.c
Caring for your car

13 7
At a glanceControlsCar careRepairsTechnicalDataIndex
Never use spot remover, paint thinner,
solvents, gasoline etc. to remove spots
from the convertible top and from the
rear window, as these substances
destroy the rubber seals and lead to
leaks. Use only BMW-approved clean-
ers.
In addition to the advantage of being
extremely flexible, the rear window also
has the disadvantage of having a rela-
tively soft surface. For this reason, only
clean the rear window with a soft, anti-
static cloth or with BMW Convertible
Rear Window Cleaner.
If you wash the vehicle frequently in
brush car washes, and in particular in
those with hard brushes, faint scratches
in the rear window may result. With the
window replacement system you can
replace a heavily scratched window at a
relatively low price. Please contact your
authorized BMW Retailer for additional
information. b
A full range of car-care products is
available from your BMW Retailer.c
a
Cleaning agents can contain sub-
stances that are dangerous or bad for
your health. Therefore always observe
the warnings and danger notices on the
package.
Open the doors or windows on your ve-
hicle when cleaning the interior.
Never clean your vehicle with solvents
or other materials not specifically in-
tended for this application.c
Hardtop:Please follow the instructions for car
care from page 131.If the vehicle is to be temporarily stored
for more than three months, have the
following maintenance performed by
your BMW Retailer:
1 Cleaning, preservation and retreat-
ment of the engine, engine compart-
ment, underbody, axles and
subassemblies in accordance with
the factory speciÞcations. Vehicle
washing with interior cleaning fol-
lowed by paint and chrome care.
Clean rubber seals of the hood, lug-
gage compartment lid and doors and
rub with either talcum powder or
glycerine oil.
2 Change engine oil and oil Þlter at
operating temperature. As an addi-
tional corrosion protection measure,
an anti-corrosive agent can be added
to the engine in accordance with the
manufacturer's instructions.
3 Check the coolant level and concen-
tration and top up if necessary.
4 Check the acid level in the battery
cells and add distilled water if neces-
sary.
5 Increase the tire inßation pressure to
50.9 psi (3.5 bar).
Cleaning and care of the convertible top Vehicle storage

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

172
Note: This index does not correspond to the original manual in all details
IIce warning
66
Identification mark, tires
113
Ignition
54
Ignition key
30
Ignition switch 54
Independent ventilation
81
Indicator lights
20
Inflation pressure 25
, 111
Inside mirror
46
Inside rearview mirror
46
INSPECTION
64
Installing child seats
49
Instrument
18
Instrument lighting
85
Interior lights
86
, 144
Interior lights,
Replace bulbs 144
Intermittent wiper switch
61
JJack
146
Jump start
153
KKeys
30
Kickdown
59
LLeather care
135
LED Light-emitting diodes

110
Length
161
License plate light,
Replace bulb
144Light switch
85
Light-emitting diode LED

110
Limit
80
Loading 98
Lock buttons
31
Locks, care 105
Lowbeam headlight
85
Lowbeam headlights,
Replace lights
141
Low-fuel warning light
64
Luggage straps
34
Lumbar support 45
MM+S-Tires
114
Maintenance 64
, 130
Make-up mirror
46
Manual transmission
57
Capacity
166
Manually controlled
recirculated-air
91
Maximum speed 163
Micro-filter
92
MID Multi-information
display
66
, 67
, 68
, 69
Mirror heating
46
Mirrors
46
Multifunction switch
60
Multi-information display
MID
66
, 67
, 68
, 69
OOdometer
63
OilCapacity
166
Oil additives 125
Oil change interval,
Refer to the service
booklet
124
Oil consumption
124
Oil dipstick
124
Oil filter change
166
Oil filter renewal 166
Oil level, indicator light
20
Oil pressure, indicator light

20
OIL SERVICE
64
Oil, power steering
128
On-board computer 77
, 78
,
79
, 80
, 81
, 82
, 83
Operating
31
Outside rearview mirror
46
Outside temperature
66
, 78
Display
66
Outside temperature
indicator 68
PPaintwork, care
132
Paintwork, dirt and
contaminants 132
Paintwork, minor repairs

133
Paintwork, waxing
133
Parking brake
56
Parking light 85
Parking light,
Replace bulb 141Parking lights
60
Parking, Winter 106
Passenger airbag 50
Payload, maximum 163
Pocket light
93
Power door locks
31
Power steering, oil 128
Pressure, tire
25
Pressure, tires 111
Procedure
147
RRadiator
166
Reading lights
86
Rear backrest,
folding
95
Rear foglight
86
, 143
Reclining seat
43
Refueling
23
Remote control
On-board computer
83
Remove mist
Windshields
91
Replacement keys
30
Reverse
57
Rims
113
, 115
Road performance
163
Roof load, approved 163
Roof load, permissible 163
Roof rack
107
Roof-mounted luggage rack

107
Rubber parts
105
Rubber seals and
Everything from A to Z