1994 BMW 325i Powe

Headlight
switch,
replacing

1
.
Remove
left
side
dash
insert
and
disconnect
harness
connector
to
headlight
switch
.
See
Fig
.
10
.

3
.
Remove
nut
mounting
switch
to
dash
insert
.
See
Fig
.
11
.

Fig
.
11
.
Headlight
switch
mounting
nut
(arrow)
.

4
.
Pull
switch
out
from
housing
.

SWITCHES
AND
ELECTRICAL
ACCESSORIES



612-5

0012558

5
.
Installation
is
reverse
of
removal
.
Align
new
switch
to
dash
insert
.
See
Fig
.
12
.

Tightening
Torque

"
Headlight
switch
retaining
nut
.
......
2
Nm
(18
in-lb)

Foglight
switch,
replacing
0012559
Fig
.
10
.
Removing
headlightswitch
electrical
harness
connector



1
.
Remove
left
side
dash
insert,
as
described
earlier,
and
(arrow)
.



remove
foglight
switch
harness
connector
.

2
.
PA
off
headlight
switch
knob
.
Wrapping
adhesive
tape
aroundknob
facilitates
removal
.



spring
tabs
together
.

0012560
Fig
.
12
.
Fit
groove
on
headlightswitch
into
switch
bezel
ondash
insert
(arrows)
.

2
.
Slide
foglight
switch
out
of
dash
insert
by
sqúeezing

3
.
Installation
is
reverse
of
removal
.

Hazard
warning
switch,
replacing

1
.
Unclip
shift
boot
and
lift
up
from
shift
lever
console
.
Carefully
remove
insulation
pad
.
See
250
Gearshift
Linkage
.

2
.
Working
underneath
center
console,
push
hazard
warning
switch
up
and
out
of
console
with
your
fingers
.

3
.
Disconnect
harness
connector
from
switch
.

4
.
Installation
is
reverse
of
removal
.

Power
window
switch,
replacing

1
.
Unclip
shift
boot
and
lift
up
from
shift
lever
console
.
Carefully
remove
insulation
pad
.
See250
Gearshift
Linkage
.

2
.
Working
underneath
center
console,
push
window
switch
up
out
of
console
with
your
fingers
.
See
Fig
.
13
.

3
.
Disconnect
harness
connector
from
switch
.

4
.
Installation
is
reverse
of
removal
.

INTERIOR
SWITCHES

GENERAL
.........
.
.......
.
.
.
.
.
.
.
.
.
..
650-1



Rear
speaker,
removing
and
installing
.
.
.
.
.
.650-5

Door
panel
speaker,

AUDIO
SYSTEM
............
.
.
.
.
.
.
.
.
.
..
650-1



removing
and
installing
.
.
.
.
.....
.
.
.
.
.
.
.
.650-5

Radio
connector
..
.
.
.
.
.
.
.
.
.
.......
.
.
.
.
.
.
650-6

RADIO
AND
SPEAKER
SERVICE
.
.
.
.
.
..
650-2

Radio,
removingand
installing
.
.
.
.
.
.
...
.
..
650-2

Left
footwell
speaker,

removing
and
installing
.
....
.
.
.
.....
.
.
.
650-3

Right
footwell
speaker,

removing
and
installing
.
....
.
.
.
.....
.
..
650-4

GENERAL



AUDIO
SYSTEM

Thissection
coversthe
BMW
factory-installed
sound
sys-



The
BMW
E36
is
equipped
with
a
three
band
radio/cassette

tem,
including
radio
and
speaker
removal,
radio
connectors



player
unit
mounted
in
the
middle
of
thecenter
console
.
In
ad

and
terminal
designations
.



dítion
to
AM
and
FM
bands,
the
radio
will
receive
broadcasts
from
theNational
Weather
Service
.

The
antenna
is
incorporated
into
the
rear
window
defogger
.

650
Radio

Fig
.
1
.



Radio
amplifier
(premiumpackage)
in
luggage
compartment
behind
left
panel
.

RADIO
650-1

TABLE

a
.
Radio
Connector
Terminal
Designation
...
.
......
650-6

The
cassette
deck
is
equipped
with
the
Do1byTM
C
noise
re-
ductionsystem,
for
improved
tape
performance
with
reduced

background
tape
noise
.

A
6-speaker
audio
system
was
standard
in
the
early
years

ofthe
model
line
.
Many
additional
features
have
been
in-
stalled
as
optional
or
standard
equipment
duringthevehicle
production
run
.

"
A
200-watt
power
amplifier
with
custom-contoured

equalization
and
ten
speaker
output
.
See
Fig
.
1
.

"
A
multi-disc
compact
disc
changer,
for
which
the
vehicle

and
the
radio
are
prewired
.
See
Fig
.
2
.

Fig
.
2
.



Optional
multi-disc
compact
disc
changerand
disc
cartridge
.

AUDIO
SYSTEM

650-2
RADIO

"
A
320-watt
Harmon-Kardon
ten
speaker
system,
including



RADIO
AND
SPEAKER
SERVICE
a
separate
high
power
multi-channel
audio
amplifier
and
two
sub-woofers
.
In
this
system,
thebass
and
volume
out-

puts
from
the
selected
audiosource
automatically
com-



Radio,
removing
and
installing

pensate
for
vehicle
speed,
making
constant
volume

adjustments
unnecessary
.
An
additional
feature
ofthis



CAUTION-
sound
system
is
the
ability
to
switch
from
normal
left-right



"
Before
beginning
work
on
the
radio
or
sound
stereo
into
Spatial
Enhancement
Mode,
which
produces
a



system,
verify
that
the
radio
is
an
original
equip-
fuller,
rounder
sound
.
See
Fig
.
3
.



ment
BMW
radio
and
that
thewiring
harness
has
not
been
modified
.
TheE36
radio
is
also
equipped
with
a
built-in
anti-theft
sys-

tem
.
lf
power
is
removed
from
the
radio
circuitry
by
removing

the
radio
electrical
connectors,
or
by
disconnecting
the
bat-
tery,
the
radio
is
rendered
inoperative
.
The
radio
is
not
perma-

nently
damaged,
and
proper
operation
can
be
restored
by

entering
the
radio
anti-theft
code
.

Fig
.
3
.
Ten
speaker
sound
system
.

RADIO
AND
SPEAKER
SERVICE

"
Servicing
of
aftermarket
sound
equipment
should
be
referredto
an
authorized
agent
of
the
equip-
ment's
manufacturer
.

"
Do
not
remove
radio
or
disconnect
the
batterywithout
first
obtaining
the
anti-theft
code
.

1.
Carefully
pry
open
small
square
covers
at
left
and
right

sides
of
radio
.

720-2



SEAT
BELTS

WARNING
-

"
For
maximum
protection
from
injury,
seat
belts

should
be
replaced
as
a
set
(including
all
hard-

ware),
if
they
are
subject
to
occupant
loading
in
a

collision
.
"
Seat
belts
should
not
be
modified
or
repaired
.

The
seat
belt
anchorage
points
should
not
be

changed
or
modified
.

"
Do
notbleach
or
dye
seat
belt
webbing
.
Webbing
that
is
severely
fadedor
re-dyed
will
not
meet
the

strength
requirements
of
a
collision
and
must
be

replaced
.

"
Seat
belts
shouldbe
periodically
inspected
for
webbing
defects
suchas
cuts
or
pulled
threads
.

FRONT
SEATBELT
ASSEMBLY

Automatic
Front
Seat
Belt

Lock
Tensioners

The
procedure
for
disabling
the
mechanical
spring
tension-

er
used
on
early
cars
is
covered
below
.
On
cars
with
thepyro-
technic(explosive
device)
tensioners,
the
orange
harness

connectorshould
be
removed
from
the
tensioner
any
time
the

seat
is
removed
.

WARNING
-

Both
the
mechanical
and
the
pyrotechnictensioners
are
powerful
devíces
and
shouldbehandled
with
extreme
care
.

Mechanical
spring
tensioner,
disarming

1
.
Remove
front
seat
.
See
520
Seats
.

2
.
Disarm
tensioner-electrically
adjustableseats
:

"
Working
at
side
of
seat,
turn
activating/deactivating

screw
clockwise
until
display
changes
from
green
to

red
.
See
Fig
.
2
.

"
Before
reinstalling
seat,
turn
screw
until
display
chang-
esback
to
green
.

NOTE-

Green
is
armed
.
Red
is
disarmed
.

3
.
Disarm
tensioner-manually
adjustable
seats
:

"
Cut
wíre
tie
next
to
tab
on
bowden
cable
.
See
Fig
.
3
.

"
Turn
and
lift
tabto
disengage
cable
housing
from
seat
bracket
.

"
Disconnect
cable
end
from
seat
lever
.
"
When
reinstalling,
correctly
engage
tab
end
of
cable

into
seat
bracket
and
fasten
in
position
using
new
wíre

tie
.

FRONT
SEATBELT
ASSEMBLY

0012737

Fig
.
2
.



Electrically
adjustable
front
seat
.
Turn
screw
(A)
to
disarm
me-

chanical
tensioner
.
Display
B
tucos
from
green
to
red
.

F19
.3
.
Manuallyadjustablefrontseat
.Turnandlifttab(arrow)todis-

GENERAL

This
section
contains
wiring
diagrams
for
1992
through

1998
BMW
3
Series
models
.

WARNING
-

On
cars
equipped
with
airbags,
special
precautions
apply
to
any
electrical
testing
or
repair
.
The
airbag
unit
is
an
explosive
device
and
must
be
handled
with
exterme
care
.
Before
starting
any
work
onan
airbag
equipped
car,
refer
to
the
warnings
and
cau-
tions
in
720
Seatbelts
and
721
Airbag
Systems
(SRS)
.

NOTE-

The
"



gear
position/neutral
safetyswitch
is
also
some-
timesreferred
to
as
the
automatic
transmission
range
switch
.

"
The
EWS
11
system
is
also
sometimes
referred
to
as
the
Driveaway
Protection
System
or
the
electronic
im-
mobilization
system
.

ELECTRICAL
WIRING
DIAGRAMS



ELE-1

Electrical
Wiring
Diagrams

GENERAL
.
.
.
.
.
.
.
.
.
................
.
.
.
ELE-1



Horns



.....
.
.....
.
.
.
....
.
.
.
.
.
...
.
.
ELE-153

Instrument
Panel
.
.
.
.
.
.
..............
ELE-165

ELECTRICAL
WIRING
DIAGRAMS
...
.
.
.
ELE-2



Interior
Lights/Illumination
.............
ELE-211

ABS



..............
.
.
.
.....
.
.....
ELE-117



Lumbar
Control
.
....................
ELE-247

ABS/AST
.............
.
.
.
...
.
.
.
.....
ELE-120



On-Board
Computer
..................
ELE-173

Airbag
(Supplemental
Restraint
System)
..
ELE-140



Park
Ventilation
.
.
.
...........
.
...
.
..
ELE-139

Air
Conditioning
and
Heating
.
.
.
.
.
.
.....
ELE-129



Power
Distribution
......
.
...
.
.
.
.
.
.
.
...
.
ELE-2

Anti-Theft
(Alpine)
..........
.
.
.
...
.
...
ELE-144



Power
Door
Locks
.
.
......
.
.
.
.
.
.
.
.
.
..
ELE-226

Anti-Theft
(EWS
II)
.
........
.
.
.
...
.
...
ELE-150



Power
Mirrors
...
.
.
.
......
.
.
.
.
.
.
.
.
.
..
ELE-241

Body
Computer
Module
.....
.
.....
.
...
ELE-176



Power
Seats
......
.
......
.
.
.
...
.
.
.
..
ELE-243

Charging
System



.
.
................
.
.
.
ELE-67



Power
Sunroof
.
.
.
.
.
.
.
...............
ELE-248

Convertible
Top
.
.
.
.
................
.
.
ELE-253



Power
Windows
.
.
.
.
.
.
.....
.
.........
ELE-231

Cruise
Control
..
.
.
.
...........
.
....
.
.
ELE-112



Radio/Cassette/CD/Speakers
..........
ELE-255

Data
Link
Connector
................
.
.
.
ELE-86



Rear
Window
Defogger
...............
ELE-160

Engine
Cooling
.......
.
.......
.
....
.
.
.
ELE-94



Shift
Interlock
.
.
.
.
.
.
.
.
...............
ELE-110

Engine
Management
...
.
.......
.
....
.
.
.
ELE-70



Starting
....
.
.
.
.
.
...
.
................
ELE-63

Exterior
Lights
........
.
.
.
.
.
.
.
.
.
......
ELE-194



Transmission
Electronics
.
..............
ELE-96
Ground
Distribution
....
.
.
.
.
.
.
.
.
.
.......
ELE-35



Warning
System
:
Chimes
.............
ELE-178

Headlights/Foglights
...
.
.
.
.
.
.
.
.
.
......
ELE-180



Wiper/Washer
.
.....
.
...............
ELE-155

Heated
Seats
........
.
.
.
.
.
.
.
.
.
......
ELE-245

ELECTRICAL
COMPONENT
LOCATIONS

Relayand
fuse
positions,
ground
locations
...........
.
.
.
.
.
.
.
.
.
................
seeRepair
Group
610

CAUTION-

Always
switchthe
ignition
off
and
disconnect
the
negative
(-)
battery
cablebefore
removing
any
electrical
components
.

"
Prior
to
disconnecting
the
battery,
read
the
bat-tery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
viii
.

"
Connect
and
disconnect
ignition
system
wires,
multiple
connectors
and
ignition
test
equipment
leads
only
while
ignition
is
switched
off
.

-Always
switch
a
test
meter
to
the
appropiate
func-
tion
and
range
before
making
test
connections
.

"
All-Season
Traction
(AST)
is
also
referred
to
as
ASC
or
ASC+T
.

GENERAL

ELE--2
ELECTRICAL
WIRING
DIAGRAMS

FUSE
LINK

64766

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