1998 BMW CONVERTIBLE technical data

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b
The luggage compartment can not
be opened during convertible top oper-
ation.
The side windows move down slightly
when the convertible top operating but-
ton is pressed; if you continue to press
the button after the indicator lamp goes
out, they move up again as soon as the
opening process is completed.c
a
The side windows must be low-
ered slightly during convertible top op-
eration. If the convertible top operation
is interrupted, do not close the side win-
dows with the power window switches.
If the opening or closing process is in-
terrupted, it may not be possible to open
the luggage compartment.
To prevent damage from continuous
dampness, never fold down the convert-
ible top when wet.c
Convenience closing with the
driver's door lockHold the key in the "lock" position with
the door closed.
The windows/sunroof stop moving
immediately when you release the key.b
At higher speeds, low air pressure
in the passenger compartment can
cause the convertible top or the rear
window to begin to flutter. Increase the
air intake via the ventilation control to
prevent low pressure from resulting in
the passenger compartment.c
Closing convertible top manually
when electrical operation failsb
Manual closing is best carried out
from outside the vehicle with the driver's
door open and the driver's seat folded
forward. The rear seat bench must not
be occupied while doing so.c
1 Raise the left rear seat. Pull out the
strap until resistance is felt. Now con-
tinue to pull Þrmly (two audible clicks)
to disengage the drives for the con-
vertible top and convertible top com-
partment lid.
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Convertible top operation

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Longitudinal adjustment Pull lever 1 and slide seat into desired
position.
After releasing the lever, make sure that
the locking device engages properly.Height adjustmentPull lever 2 and load or relieve seat as
required.
Backrest anglePull lever and load or relieve as required.b
You can reduce the load on your
spinal column by sitting all the way
back in the seat with your back pressed
firmly against the backrest.
Ideal sitting posture is achieved with
your head extending from your spine in
a straight line.
For long-distance driving, you may wish
to increase the backrest angle slightly
to reduce muscular tension. Please
remember that you should always
remain able grasp the entire periphery
of the steering wheel without straight-
ening your arms.c
Front headrestsAdjust height by pulling out or pushing
in.
Adjust angle by swiveling.Remove and install the front
headrestsPull the headrests upward until they
stop.
With a forceful jerk, pull the headrests
out of their supports in the backrests.Rear head restraintsAdjust height by pulling out or pushing
in.
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Seats

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Lumbar support
*
Adjust the curvature as desired with the
rocker switch.
You can adjust the backrest's contour
for additional support in the curvature
of your spine's lumbar region.
The upper hips and spinal column
receive supplementary support to help
you maintain a relaxed, upright posture.
Releasing backrest
*
Pull up lever: the backrest can now be
folded forward.
The outer levers also serve as a storage
point for the seat belt (not on BMW
Convertible).a
The front seat backrests must al-
ways be locked during driving.cdPull out clamping lever.
dAdjust steering wheel tilt for your
seating position.
dPush the lever back in to clamp the
steering wheel in the new position.
a
Never adjust the steering wheel
while driving Ð accident danger.c
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Seats Adjusting steering wheel*

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Always fasten your seat belt before
starting off.
To fasten: make sure you hear the catch
engage in the belt buckle.
To release: press the red button in the
buckle, hold the belt and guide it back
into its reel.
The safety belt inertial mechanism
locks:
din a sudden stop or crash
dwhen you pull it sharply
dduring abrupt braking and
acceleration
din curves
dwhen the vehicle is at an
extreme angle.The safety belt can be adjusted individ-
ually to different body sizes with the
belt height adjustment:
Downward adjustment (1):
Push button downward.
Upward adjustment (2):
Grasp deflection fitting on ribbed side
sections and slide upward.
a
For your own safety, please ob-
serve the following when putting on the
safety belt, otherwise its protective
function may be impaired. Also ensure
that the other occupants follow these in-
structions.
Never allow more than one person to
wear a single safety belt. Never allow in-
fants or small children to ride in a pas-
senger's lap.
Avoid twisting the belt while routing it
firmly across the hips and shoulder. Do
not allow the belt to rest against hard or
fragile objects in your pockets. The
safety belt must not run across the
wearer's neck, nor should it be trapped
or abraded by coming into contact with
sharp edges or objects.
The belt should rest as firmly as possible
against your body You should avoid
wearing clothing that prevents it from
doing so. Pull the belt periodically to re-
tention it across your shoulder. In the
event of a frontal collision, a loose lap
belt could slide over your hips, leading
to abdominal injury. Due to the in-
creased distance between belt and
body, there would also be a delay before
restraint becomes effective.
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Safety belts

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To release the beltRelease the buckle, remove the child
restraint device and allow the inertia
reel to retract the belt completely.b
Please also make this information
available to your passengers and urge
them to observe the instructions for
safety belt use.c
For care instructions refer to page 134.All passengers, and especially children,
should use a restraint device when
riding in the car.
Infants or small children should never
be permitted to ride on a passenger's
lap.
Children should always sit in the rear
seat and use, depending on age, either
a child restraint system or the safety
belts installed in the vehicle. Accident
statistics have shown that children are
safer when properly restrained in the
rear seats than when riding in the front.
Infants and toddlers should be secured
with a child restraint system appropri-
ate for their size.
Children of six years and older should
wear safety belts.Commercially available child seats
complying with legal standards are
designed to be secured using either a
lap belt or a combined lap-shoulder
belt. Because improperly installed
restraint systems can increase the risk
of injury to children, we strongly urge
you to carefully read and follow the
instructions supplied with the system.
Should the child restraint system of your
choice require the use of a securing or
tether strap, note that three anchoring
points (arrows) have been provided for
mounting it in your vehicle.
Ask your BMW Retailer to perform the
necessary installation work.
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BMW Sedan/Coupe
Child restraint system Installing child seats

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The airbags are triggered by impacts
coming from the directions shown in
the illustration. Note that the supple-
mentary protection against lateral
impact is available only on vehicles
equipped with optional door-mounted
airbags.Indicator lamp in instrument
clusterSystem operational:
dThe indicator lamp comes on briefly.
System malfunction:
dThe indicator lamp fails to come on.dIndicator lamp lights up for approx.
4 seconds, goes out brießy and then
lights up again.
A system malfunction could prevent the
system from responding to an impact
occurring within its normal response
range.
Please have your authorized BMW
Retailer inspect and repair the system
as soon as possible.
a
For your own safety, please ob-
serve the following precautions con-
cerning airbags, as otherwise their
protective function may be impaired. We
also request that you make this informa-
tion available to your passengers, and
that you urge them to observe the in-
structions for safety belt use: the air-
bags are a supplemental restraint
device designed to provide extra pro-
tection; they are not a substitute for
safety belts. Wear your safety belt at all
times. The system does not respond to
minor collisions, if the vehicle rolls over,
or if the impact is at the rear of the vehi-
cle. In this situation, only the safety belt
protects you.
When adjusting your seat, select a posi-
tion that provides maximum distance
between you and the steering wheel, the instrument panel and the door while still
allowing comfortable and safe access to
all vehicle controls.
Always grip the steering wheel on its
rim with your hands at the 9 and 3 oÕclock
positions, otherwise hand and arm inju-
ries could occur when the airbag
inflates.
Never allow any objects to obstruct the
area between the airbag and the driver/
passenger.
Do not use the cover panel above the
passenger-side airbag as a storage
area.
Do not glue, cover or in any way alter
the padded covers on the steering
wheel, the instrument panel or the side
trim panels of the front doors.
Do not install a rear-facing child re-
straint device on the front passenger
seat. Children under 12 years of age
should only sit in the back.c
Even when all these guidelines are
observed, there is still a residual risk of
mild facial injuries occurring in isolated
instances of airbag actuation. The igni-
tion and inßation noise may induce a
mild temporary hearing loss in sensitive
individuals.
Airbag information is also located on
the sun visors.
p
The indicator lamp comes on from
ignition key position 1 to indicate
that the system is operational.
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Following an unforeseen, automatic
extension, the rollover protection sys-
tem can be lowered again.
To do this, remove the screwdriver han-
dle and the special tool (stored on the
socket wrench) from the onboard tool
kit and push them together.
dPull out the head restraint upward.
dRemove the protective cap upward
from the protective bar.dPush the special tool into the guide
of the click-and-pawl mechanism as
far as possible (handle rests on the
backrest) and hold in place.
dGently press down the protective bar
until the special tool is loose.
dPull out the special tool and press
down the protective bar completely
until it audibly engages.
dRemount the protective cap on the
protective bar and push on Þrmly.
dPush in the head restraint again.Follow the same procedure for the sec-
ond protective bar.
Have the rollover protection system
checked by a BMW Retailer.
a
The opened convertible top can not
be closed with the rollover protection
system extended.c
Notes on safetyNo changes should be made to the indi-
vidual components of the rollover pro-
tection system or to its wiring.
All work on the rollover protection sys-
tem must be carried out by a BMW
Retailer.
Work carried out incorrectly may lead to
the failure or an accidental triggering of
the system.
To check the system and to ensure its
long-term operation, it is imperative that
you observe the maintenance intervals
of the Service Interval Display. The roll-
over protection system must be in-
spected every 2 years at the latest by a
BMW Retailer.
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Rollover protection system* Ð Convertible

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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