light BMW 320i 2001 Workshop Manual

161n
IndexDataTechnologyRepairsCar careControlsOverview
Lamps and bulbsSide turn signal indicators

5 watt bulb
1 Use finger pressure against the rear
end of the lens (arrow) to press it
forward for removal
2 Apply gentle pressure to the bulb
while turning it to the left to remove.460de135
Front fog lamps
*
HB4, 55 watt bulb
The bulb is pressurized. There-
fore, wear safety glasses and
protective gloves. Failure to comply
with this precaution could lead to injury
if the bulb is accidentally damaged
during replacement.<
1 Using a screwdriver, carefully loosen
the lamp
2 Applying light pressure, turn the bulb
to the left. Remove and exchange the
bulb.460de132
Tail lamps Tail lamps (4): bulbs 21/4 watts
Remaining bulbs: 21 watts
1 Turn signal indicator yellow
2 Backup lamp white
3 Tail lamp red
4 Tail lamp/Brake lamp red460us046

162n
Lamps and bulbsThe illustration shows the right-hand
luggage compartment opening.
Bulbs in the fender:
All of the bulbs are integrated in a
central bulb holder.
1 Release the bulb holder (arrow,
partial view) and remove
2 Unplug the power supply receptacle.
Set the bulb holder aside (on the
luggage compartment floor, for
example)
3 Applying light pressure, turn the bulb
to the left. Remove and exchange the
bulb
4 Plug in the power supply receptacle
5 Position the bulb holder for reinstalla-
tion. Apply gentle pressure on the
button (arrow, partial view) until you
hear it engage.460de057
Bulbs in the luggage compartment lid:
1 Using a screwdriver, loosen the two
clips460de131
2 Fold the trim panel down (arrow 1).
Disengage the bulb holder (arrow 2)
and remove it
3 Applying light pressure, turn the bulb
to the left. Remove and exchange the
bulb
4 Press the bulb holder into position
until you hear it engage
5 Reinstall the trim with the two clips.462us033

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IndexDataTechnologyRepairsCar careControlsOverview
Lamps and bulbsCenter (high-mount) brake lamp LED light bar on the rear window.
Please contact a BMW center in the
event of a malfunction.462de268
License plate lamps 5 watt bulb
1 Place a screwdriver in the slot and
press toward the left (arrow) to
release the lens
2 Replace the bulb.460de047
Interior lamps Front:
The illustration provides an example of
the interior lamps when equipped with
reading lamps.
Interior lamps (2 x 5 watt bulbs)
1 Using a screwdriver, press the lamp
out toward the front
2 Remove the lens and pull the bulb
out of the contact studs.
Interior lamps (6 watt bulb) with reading
lamps (2 x 6 watt bulbs)
1 Using a screwdriver, press the lamp
out toward the front
2 Turn the bulb holder to the left and
remove
3 Remove and replace the bulb.460de182

164n
Lamps and bulbsRear:
The illustration provides an example of
the interior lamps when equipped with
reading lamps.
Interior lamps (5 watt bulb)
1 Using a screwdriver, press the lamp
out toward the front
2 Turn the bulb holder to the left and
remove
3 Remove and replace the bulb.
Interior lamps (6 watt bulb) with reading
lamp (6 watt bulb)
1 Press the lamp out using a screw-
driver
2 Turn the bulb holder to the left and
remove
3 Remove and replace the bulb.460de179
Lighted vanity mirror
*
10 watt bulb
1 Remove the bulb housing Ð use a
screwdriver if necessary
2 Replace the bulb.460de181
Footwell lamps
*
5 watt bulb
1 Press the lamp out using a screw-
driver
2 Replace the bulb.Glove compartment lamp 5 watt bulb
1 Press the lamp out using a screw-
driver
2 Replace the bulb.Luggage compartment lamps One lamp each in the bulb holder of the
tail lamp assembly: 10 watt bulb.
1 Apply a screwdriver to the recess and
remove the lens
2 Replace the bulb.

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IndexDataTechnologyRepairsCar careControlsOverview
Changing a wheel9 Position the new wheel or the
space-saver spare tire on the hub
and screw at least two lug bolts
finger-tight into opposite bolt holes
10 Screw in the remaining lug bolts.
Tighten all the bolts securely
11 Lower the jack and remove it from
beneath the vehicle
12 Tighten the lug bolts in a diagonal
pattern462de267
13 Wheels with full wheel covers
*:
Position the wheel cover with the
valve opening over the valve (arrow)
and press it onto the wheel with
both hands
14 Check and correct the tire's inflation
pressure at the earliest possibility.
For vehicles with RDC (Tire Pres-
sure Control):
Reactivate the system after
mounting the spare wheel or
correcting the inflation pressure.
Refer to page 86.
Use original BMW full wheel
covers only. Other wheel covers
may not fit securely. The full wheel
cover may not be installed on the
space-saver spare tire, since this could
damage the cover.<
460de125
The vehicle jack is designed for
changing wheels only. Do not
attempt to raise another vehicle model
with it or to raise any load of any kind.
To do so could cause accidents and
personal injury.
Have the lug bolts checked for proper
tightness with a calibrated torque
wrench at the earliest possibility [torque
specification: 72 lb.ft. (100 Nm)].<
When storing the wheel, be sure that
you do not damage the retaining pin in
the spare tire recess.
If light-alloy wheels other than Original
BMW light-alloy wheels have been
mounted, it may be necessary to use
different lug bolts for those wheels.
Replace the defective tire as quickly as
possible and have the new wheel
balanced.

168n
Changing a wheel Battery Driving with the space-saver
spare tireDrive cautiously and do not exceed a
speed of 45 mph (80 km/h).
Be aware that vehicle handling will be
altered. Slower brake response time,
longer braking distances and changed
steering characteristics may be antici-
pated when approaching limit condi-
tions.
The changes in handling characteristics
will be even more pronounced in
conjunction with winter tires.
Only one space-saver spare tire
may be mounted at one time.
Mount a wheel and tire with the same
size and specifications as the others
at the earliest possible opportunity.
Maintain correct tire pressures. Refer
to page 29.<
Battery locationThe battery is located at the right-rear
of the luggage compartment. Raise the
luggage compartment floor panel (refer
to page 41). Use a screwdriver or a coin
to loosen the two fasteners in the illus-
tration f-turn. Loosen the third fastener
in the upper-center side trim panel.
Remove the fasteners. In order to
remove the storage tray, slide the side
trim panel slightly upward.
Battery posts, terminals, and
related accessories contain lead
and lead compounds. Wash hands after
handling.<460de176
Charge conditionThe "Magic Eye
*" is a hydrometer that
allows you to read the charge condition
of the battery:
>Green: adequate charge.
>Black: not adequately charged. The
battery must be recharged. Please
contact your BMW center for addi-
tional information.
>Yellow: replace the battery.
The service life specified for the
battery can be achieved only if it is
always kept adequately charged. If the
vehicle is primarily used for stop-and-
go traffic, be sure to check the charge
state often.<
460de252

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IndexDataTechnologyRepairsCar careControlsOverview
BatteryBattery careThe battery is absolutely maintenance-
free, that is, the original electrolyte will
normally last for the service life of the
battery under moderate climatic condi-
tions.
For all questions that regard the
battery, please consult your BMW
center. Since the battery is mainte-
nance-free, the following is for your
information only. your vehicle battery. To avoid injury,
please comply with the corresponding
precautions whenever you work with or
near the battery.
Before handling the battery,
please read the following infor-
mation.
Wear eye protection. Do not
allow particles containing
battery acid or lead to come into
contact with your eyes, your skin, or
your clothing.
Battery acid is extremely corro-
sive. Wear eye protection and
protective gloves. Do not tip the
battery. Battery acid can leak from the
ventilation openings.
Do not allow children access to
batteries and battery acid.
Never allow sparks or open
flame in the vicinity of the
battery. Avoid sparks from elec-
trical cables or electrical equipment.
Turn the key to position 0 in the
steering lock when disconnecting or
connecting the battery. Do not short-
circuit the battery terminals. This
creates a risk of injury from high-energy
sparks.
A highly explosive gas is gener-
ated when the battery is charged.
If battery acid is splashed into
your eyes, immediately rinse
them with clear water for
15 minutes. Consult a physician imme-
diately. If your skin or clothing are
splashed by acid, rinse immediately
with ample clear water. If battery acid is
accidentally swallowed, consult a
physician immediately.
In order to protect the battery
case from ultraviolet radiation,
do not place it in direct sunlight.
A discharged battery can freeze. Store
the battery in areas where temperature
remains above freezing.
Removal and installation
Do not disconnect the battery
when the engine is running. If you
do so, the ensuing voltage surge will
damage the vehicle's onboard elec-
tronics.
Do not make any modifications in the
wires to the positive terminal. If you do
so, the protective function of the safety
battery terminal is no longer ensured.
Repair and disposal must be performed
by trained technicians only.<
When removing the battery, disconnect
the cable on the negative terminal first,
then the cable on the positive terminal.
Loosen the center adjusting screw on
the battery retaining strap (use the
screwdriver included with the onboard
tool kit) and disconnect the strap.
When installing a battery, connect the
positive terminal first, then connect the
negative terminal.
When installing a battery, be sure
that it is mounted properly and
that the retaining bracket is installed
with the center adjustment screw. If this
is not done, the battery will not be
adequately secured in case of an acci-
dent.<

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IndexDataTechnologyRepairsCar careControlsOverview
Do not use spray starter fluids.
If the battery is discharged, the engine
can be started with the use of two
jumper cables and the battery of
another vehicle. Use only jumper cables
with fully insulated grips on the terminal
clamps.
Do not touch the parts conducting
electrical current while the engine
is running. Failure to comply with this
creates a risk of fatal injury.<
Carefully comply with the following
instructions to avoid personal injury or
damage to one or both vehicles:
1 Be sure that the battery on the
support vehicle is also rated at
12 volts, and that the capacities of
the two batteries (Ah) are roughly
comparable (printed on casing)
2 Leave the discharged battery
connected to the vehicle's electrical
system
3 Make sure that there is no contact
between the bodywork of the two
vehicles Ð this creates a risk of short
circuits
4 Start by connecting the jumper cable
from the positive terminal of the
support vehicle to the positive
terminal connector located in your
BMW's engine compartment. The
cover of the positive terminal
connector is marked with a "+" sign.
Refer to the illustration. Remove by
pulling the tab (arrow 1)
5 Then connect the negative terminals.
Attach the cable to either the support
vehicle's negative battery terminal (Ð),
or to a suitable ground on its engine
or bodywork. Then connect the other
end of the cable to a ground on the
engine or on the bodywork of the
vehicle that is to be started. There is
a special nut provided for this on the
BMW (arrow 2)462us053
Follow the same sequence for
connecting the jumper cables
when helping other vehicles. If you do
not, there is the risk of injury if sparks
are generated at the battery.<
6 Start the engine of the support
vehicle and let it run
7 Start the engine on the vehicle
needing the jump-start, and allow it
to run as usual. If the first start
attempt is not successful, wait a few
minutes before another attempt in
order to allow the discharged battery
to recharge
8 Before disconnecting the jumper
cables from your BMW, turn on the
lighting, the rear window defroster
and set the blower to the highest
speed; allow the engine to run
approx. 10 seconds. This will prevent
a voltage surge from the voltage
regulator to the electrical accessories
9 Then disconnect the jumper cables in
reverse sequence.
Depending on the cause of the fault,
recharge the battery.
Jump-starting

184n
Interior rearview mirror with automatic dimming feature
*
The interior rearview mirror with auto-
matic dimming feature reduces blinding
from following traffic by adapting the
intensity of the reflected images to
correspond to levels of light registered
by the unit's sensors. The mirror reverts
to its undimmed setting as soon as the
light source disappears. One lamp
sensor is mounted on the front of the
mirror housing. This sensor, which is
directed forward, measures light inten-
sity in the area ahead of the vehicle.
The second sensor is integrated within
the mirror's glass. The electronic
control system compares the light
intensity from front and rear. The differ-
ence provides the basic parameter
used to modulate an electrical current
and induce chemical changes in a
semisolid layer incorporated in the lens.463us013
The semisolid reacts chemically to this
electrical current, thus providing
dimming of the mirror through an infi-
nitely-variable range (electrochromic
technology).
As a result, it is no longer necessary to
dim the mirror manually, and the driver
can concentrate completely on traffic
conditions.

185n
IndexDataTechnologyRepairsCar careControlsOverview
Rain sensor
*
Depending on the degree of wetness
on the windshield, the rain sensor
controls the operation of the windshield
wipers.
Infrared light is carried along the
surface of the windshield in an optical
conductor in such a manner that it is
reflected completely when the wind-
shield is dry. The quantity of reflected
light is measured.
If there is moisture on the glass, the
amount of light reflected is reduced
since the infrared light at the surface of
the windshield can escape. The quan-
tity of reflected light is thus a means of
gauging the degree of wetness on the
windshield.390de133
When the system is set to the "Intermit-
tent" wiper speed, the wipers react
immediately Ð if water is splashed onto
the windshield by vehicles traveling
ahead of you, for example. As a result,
the rain sensor provides a contribution
to driving safety and comfort.