1994 BMW 325i Convertible

2
INDEX

Brakes
(cont
.)
pressure
bleeding
brakes
(except
cars
wíth
AST)
340-3
troubleshooting
340-1
Brushes,
alternator
See
Battery,
starter,
alternator
Bulbs
See
Exterior
lighting
See
also
Instruments
Bumpers
See
Exterior
trim,
bumpers

C

CamberSee
Steering
and
wheel
alignment
Camshaft
See
Cylinder
head
and
valvetrain
Camshaft
position
sensor
See
Ignition
system
Camshaft
timing
chain
general
information
117-1
camshaft
timingchain,
4-cylinder
117-
2
camshaft
timing
chains,6-cylinder
117-6
camshaft
timing
chain,
removing
(4-cylinder
engines)
117-2
camshaft
timing
chains,
removing
(6-cylinder
engines)
117-7vanos
(variable
valve
timing)
117-14
control
unit,
removing
117-16system
operation,
testing
117-14
Caster
See
Steering
andwheel
alignment
Catalytic
convertor
See
Exhaustsystem
Cautions
viü
Center
bearing
See
Driveshaft
Center
console
See
interior
trim
Central
body
electronics
(ZKE
IV)
515-8
Central
locking
system
(ZVM)
515-7
Centrallocking
and
anti-theft
general
information
515-1
door
handles
and
Iocks
515-1
door
striker,
replacing
515-6
front
door
handle,
removing/
installing
515-3
front
door
lock,
removing/installing
515-1
rear
door
handle,
removing/installing
515-5
rear
door
lock,
removing/installing
515-4
EWS
II
control
module,
replacing
515-10
EWS
II
ring
antenna,
replacing
515-10
EWS
II
transmitter/receiver
module,
replacing
515-11
locking
system
and
electronic
immobilization
515-7
luggage
compartment
locking
actuator,
removing/installing
515-6

Clutch
general
information210-1
clutch
hydraulic
system,
bleeding
and
flushing
210-2
clutch,
inspecting
and
installing
210-5
clutch
master
cylinder,
replacing
210-2
clutch,
removing
210-4
clutch
slave
cylinder,
replacing
210-3
transmission
pilot
bearing,
replacing
210-6
Clutch
fluid
See
Maintenance
program
Coil
See
Ignition
system
Coilspring
See
Rear
suspension
Component
locations

See
Electrical
component
locations
Compressor
See
Air
conditioning
Compressor
clutch
See
Air
conditioning
Condenser
See
Air
conditioningControl
arms
See
Front
suspension
See
also
Rear
suspension
Convertible
top
general
information
541-1
manual
convertible
top
541-1
lid
release
mechanism
541-2
replacing
541-2
visor
latch
541-1
visor
latch
píate
541-1
power
convertible
top
541-2
drive
motor,
replacing
541-7
emergency
operation
541-7
front
latching
mechanism
541-4
lid
541-9
replacing
541-5
visor
latch
541-4
visor
latch
motor541-5
visor
latch
plate
541-4
rollover
protection
system
541-9
Coolant
(Anti-freeze)
See
Maintenance
program
Coolant
pump
See
Cooling
system
Cooling
system
general
information
170-1
cooling
fan,
replacing
170-8
coolant
pump,
replacing
170-10
coolant
pump
and
thermostat170-1
coolant,
draining/filling
170-5
cooling
fans
170-2
cooling
fan,
testing
170-4
cooling
system
service
170-5
cooling
system,
bleeding
(radiator
with
integral
expansion
tank)
170-6
cooling
system
pressure
test
170-3
electric
cooling
fan,
replacing
170-8
radiator,
removing/installing
170-11

Cooling
system
(cont
.)
radiator
and
expansion
tank
170-1
radiator
service
170-11

temperature
gauge
quick
check170-3
thermostat
quick
check
170-3
thermostat,
replacing
170-9
troubleshooting
170-2
warnings
and
cautions
170-2Crankshaft
position/rpm
sensor
See
Ignition
system
Crash
sensor
See
Airbag
system
(SRS)
CV
joint
See
Maintenance
program
See
also
Rear
suspension
Cylinder
head
and
valvetrain
general
information
116-1
camshaft116-7
camshafts,
removing/installing
(M42
engine)
116-1camshafts,
removing/installing
(M44
engine)
116-3
camshafts,
removing/installing
(6-cylinder
engine)
116-4
cylinder
head,
disassembly/assembly
116-1
cylinder
head
and
valvetrain,
reconditioning
116-7
cylinder
head
116-7
hydraulic
cam
followers,
checking
and
replacing
(M42
and
al]
6-cylinder
engines)
116-9
hydraulic
valve
adjusters,
checking
and
replacing
(M44
Engine)
116-8
valve
guides
116-10
valveseats
116-12
valve
springs
116-12
valve
stem
oil
seals
116-11
valves
116-11

valves,
leak
test
116-11
valves,removing/installing
116-6
Cylinder
head
removal
and
installation
general
information
113-1
cylinder
head,
removing/installing
(4-
cylinder
engine)
113-1
cylinder
head
(6-cylinder
engine),
removing/installing
113-10

Dashboard
See
Interior
trim

Deck
lid
See
Trunk
lid
Defogger

See
Heating
Differential
See
Final
drive
DISA
(dual
resonance
intake
system)
See
Fuel
injection
See
also
Engine-general
DME
(digital
motor
electronics)
See
Ignition
system
See
alsoFuel
injection

WARNING

Your
common
sense,
good
judge-
ment,
and
general
alertness
are
cru-
cial
to
safe
and
successful
service
work
.
Befcre
attempting
any
work
on
your
BMW,
read
the
warnings
and
cautions
on
page
vi¡
and
the
copyright
page
at
the
frontof
the
manual
.
Review
these
warnings
and
cautions
each
time
you
prepare
to
workon

your
BMW
.
Please
also
read
any
warnings
and
cautions
that
accom-
pany
the
procedures
in
the
manual
.

Door
glass
See
Door
windows
Door
windows
general
information
512-1
front
door
window
(2-door
models)
adjusting
512-7
removing/installing
512-5
front
door
window
(4-door
models)
initíalizing
512-1
removing/installing
512-2
rear
door
window
(4-door
models)
removing/installing
512-4
fixed
glass,
removing/installing
512-
4
rear
vent
window
or
vent
latch,
replacing
(2-door
models)
512-11
window
regulator
and
motor,
removing/installing
512-12
window
regulator
service
512-12Doorcheck
See
DoorsDoor
handle
See
Centrallocking
and
anti-theft
Door
panel
See
Doors
Doors
general
information
411-1
door
adjustment
411-2door
check,
replacing
411-2
door
panels
411-3
doors411-1
front
orrear
door,removing/installing
411-1
front
door
panel,
removing/installing

411-3
rear
door
panel,
removing/installing
411-4
rearsidepanel,
removing/installing
(two-door
model)
411-4
Drive
axle
See
Rear
suspension
Driveability
troubleshooting

See
Engine-general
Driveshaft
general
information
260-1
center
bearing
assembly,
replacing
260-6
driveshaft,
aligning
260-3
driveshaft,
installing
260-4

Driveshaft
(cont
.)
driveshaft,
removing260-4
driveshaftservice
260-3
flex-disc,
replacing
260-5
front
centering
guide,
replacing
260-7
guibo
See
flex-disc
troubleshooting260-1

ECM
(engine
control
module)
pin
assignment
See
Fuel
injection
Electrical
circuit
See
Electrical
system-general
Electrical
component
locations
general
information
610-1
auxíliary
relay
panel
610-2
component
location
table
610-9
component
locations
610-3
fuse
position
tables
610-19
fuse
positions
610-1
relay
positions
610-2
splice
panel,
left
610-2
splice
panel,
right
610-3
Electrical
system-general
general
information
600-1
continuity,
checking
600-5
electrical
test
equipment
600-2
safety
precautions
600-1

short
circuits
600-5
short
circuit,
testing
with
ohmmeter
600-6
short
circuit,
testing
with
voltmeter
600-6
troubleshooting
600-3
voltage,
measuring600-4
voltage
and
polarity
600-1
voltage
and
voltage
drops
600-4
voltage
drop,
testing
600-4
wiring
codes
and
abbreviations
600-2
wiring
diagrams
600-2
wiring,
fuses
and
relays
600-1
Electrical
wiring
diagrams
general
information
ELE-1
wiring
diagrams
ELE-2
ABS
ELE-117

ABS/AST
ELE-120
airbag
(supplemental
restraint
system)
ELE-140
air
conditioning
and
heating
ELE-
129
anti-theft
(Alpine)
system
ELE-144
anti-theft
(EWS
II)
ELE-150
body
computer
module
ELE-176
charging
system
ELE-67
convertible
top
ELE-253
cruise
control
ELE-112
data
link
connector
ELE-86
engine
cooling
ELE-94
engine
management
ELE-70
exterior
lights
ELE-194
ground
distribution
ELE-35

headlights/foglights
ELE-180

INDEX
3

Electrical
wiring
diagrams
(cont
.)

heated
seats
ELE-245

horns
ELE-153
instrument
panel
ELE-165
interior
lights/illumination
ELE-211
lumbar
control
ELE-247
on-board
computer
ELE-173
park
ventilation
ELE-139
power
distribution
ELE-2
power
door
locks
ELE-226
power
mirrors
ELE-241
power
seats
ELE-243

power
sunroof
ELE-248

power
windows
ELE-231
radio/cassette/CD/speakers
ELE-
255
rear
window
defogger
ELE-160
shift
interlock
ELE-110
starting
ELE-63
transmission
electronics
ELE-96
warning
systems`
.
chimes
ELE-178
wiper/washer
ELE-154
Emergencies
See
Fundamentals
for
the
do-it-
yourself
owner
Engine-general
general
information
100-1
air
flow
measurement
and
vacuum
leaks
100-12
basic
engine
settings
100-11
basic
requirements
100-11
battery
voltage
100-12connecting
rods
and
pistons
100-1
cooling
system
100-5
cylinder
block
and
crankshaft100-1
cylinder
compression,
checking
100-6
cylinder
head
and
valvetrain
100-2
DISA
(dual
resonance
intake
system)
100-3,130-3
driveability
troubleshooting
100-8
engine
management
system
100-3
fuel
delivery
100-5
fuel
supply
100-14ground
connections
100-13
ignition
100-5
lubrication
system100-5
mechanical
troubleshooting
100-5
on-board
diagnostics
(OBD)
100-8
oxygen
sensors
100-11
preventive
maintenance
100-11
VANOS
(variable
valve
timing)
100-2warningsand
cautions
100-5
wiring
andharness
connections100-
13Engine
control
module
(ECM)
See
Fuel
injection
Engine
removal
and
installation
general
information
110-1
engine,
removing/installing(4-cylinder
engines)
110-1
engine,
removing/installing
(6-cylinder
engines)
110-4
Engine
coolant
temperature
(ECT)
sensor
See
Fuel
injection
Engine
hood
See
Fenders,
enginehood

WARNING

Your
common
sense,
good
judge-
ment,
and
general
alertness
are
cru-
cial
tosafe
and
successful
service
work
.
Before
attempting
any
work
on
your
BMW,
read
the
warnings
and
cautions
on
page
vi¡
and
the
copyright

page
at
the
frontof
the
manual
.
Review
these
warnings
and
cautions
each
time
you
prepare
to
work
on
your
BMW
.
Please
also
read
any
warnings
and
cautions
that
accom-
pany
the
procedures
in
the
manual
.

Fuel
pressure
regulator
See
Fuel
injection
Fue]
pump
general
information
160-1
electrical
tests
160-7
power
consumption,
testing
160-7
delivery
tests160-8
delivery
volume,
testing
g
160-9
electrical
circuit,
checking
160-7
fuse
and
relay
160-6
level
sender
See
pump/fuel
leve¡
sender
operating
fuel
pump
for
tests
160-6
pump/fuel
level
sender
(left
side),
removing/installing
160-6
pump/fuel
leve¡
sender
(right
side),
removing/installing
160-5
relieving
fuel
pressure
and
connecting
fue¡
pressure
gauge
160-8
Fueltank
and
lines
general
information
160-1
draining
160-2
evaporative
control
system
160-4
leve¡
senders,
testing
160-5
removing/installing
160-3
Fundamentals
for
the
do-it-yourself
owner
general
information
010-1
advice
for
the
beginner
010-4
cleanliness
010-4
electrical
testing
010-6
gaskets
and
seals
010-5
non-reusable
fasteners
010-5
planning
ahead
010-4
tightening
fasteners
010-5
wire
repairs
010-6
buying
parts
010-6
genuine
BMW
parts
010-6
information
you
need
to
know
010-7
non-returnable
parts
010-7
emergencies
010-11brake
fluid
leve¡
010-13
car
will
not
start
010-11
changinga
tire
010-11
check
enginewarning
light
010-13
dim
Iights
010-13
jump
starting
car
010-12
low
o]I
pressure
010-13
overheating
010-12

Emergencies
(cont
.)
spare
parts
kit
010-14
towing
010-13
gettingstarted
010-2
lifting
thecar
010-3
raising
car
safely
010-3
safety
010-2
working
under
car
safely
010-4
how
to
use
this
manual
010-2
warnings,
cautions
and
notes
010-2
service
010-7
tools
010-7
basic
tool
requirements010-8
BMW
specialtools
010-11
feeler
gauges
010-10
jack
stands
010-9
oil
change
equipment
010-9
torque
wrench
010-10
volt-ohm
meter
(VOM)
or
Multi-
meter010-10
Fuses
See
Electrical
component
locations

G

Gaskets
See
Fundamentals
for
the
do-it-
yourself
owner
Gearshift
See
Gearshift
linkage
Gearshift
linkagegeneral
information
250-1
automatic
shiftlock,
checking
function
250-5
automatic
transmission
gearshift
250-
3
gear
position/neutral
safety
switch,
replacing
(automatic
transmission)
250-4
gearshift
lever,
installing
(manual
transmission)
250-2
gearshift
lever,
removing
(manual
transmission)
250-1
gearshift
mechanism,
adjusting
(automatictransmission)
250-3
manual
transmission
gearshift
250-1
shift
interlock,
checking
function
(automatic
transmission)
250-6Glass
See
Door
windows
Glove
compartment
See
Interior
trim
Grille
See
Exterior
trim,
bumpers
Guibo
(flex
disc)
See
Driveshaft

Handle,
door
See
Doors
Hardtop
See
Body-general
Headlight
See
Exterior
lighting
Headlight
switch
See
Switches
and
electrical
accessoriesHeater
box
See
Heating
Heater
core

See
Heating
Heater
valve
See
Heating
Heating
general
information
640-1
air
distribution
motors
640-9
air
distribution
motor,
replacing
(rotary
knob)
640-10
blower
motor,
removing/installing
640-1blower
motor
resistor
pack,
replacing
640-3
control
head
640-7
removing/installing
(digital-display)
640-8
removing/installing
(rotary
knob)
640-7
control
module
removing/installing
(digital-display)
640-8
removing/installing
(rotary
knob)
640-8
heater
box,
removing640-4
heater
core,
replacing
640-6
heater
core
temperature
sensor,
replacing
640-7
heater
valve,
replacing
640-3
rear
window
blower
(convertible
models)
640-10
reas
window
defogger
640-10sensor
fan
forinterior
temperature,
replacing
640-9warnings
and
cautions
640-11
Hood
See
Fenders,
engine
hood

Idle
speed
See
Maintenance
program
Idle
speed
control
valve
See
Fuel
injection
Ignition
switch
See
Switches
and
electrical
accessories

INDEX
5

N

WARNING

Your
common
sense,
good
judge-
ment,
and
general
alertness
are
cru-
cial
to
safe
and
successful
service
work
.
Before
attempting
any
workonyour
BMW,
read
the
warnings
and
cautions
on
page
vi¡
and
the
copyright
page
at
the
front
of
the
manual
.
Review
these
warningsand
cautions
each
time
you
prepare
to
work
on
your
BMW
.
Please
also
read
any
warnings
and
cautions
that
accom-
pany
the
procedures
in
the
manual
.

Master
cylinder
See
Brakes
See
also
Clutch
Mechanical
troubleshooting
See
Engine-general
Microfilter
See
Air
conditioning
Mirror
See
Exterior
trim,
bumpers
Muffler

See
Exhaustsystem
Multi-information
display
(MID)
See
Instruments

Neutral
safetyswitch
See
Gearshift
linkage

O

Oil,
changing
See
Maintenance
program
Oil
panSee
Lubrication
system
Oil
pressure
See
Lubrication
system
Oil
pump
See
Lubrication
systemOn-board
diagnostics
(OBD)
See
Engine-general
See
alsoFuel
injection
See
also
Ignition
system
On-board
trip
computer
See
Multi-information
display
620-4
Oxygen
sensor
See
Engine-general
See
alsoFuel
injection
See
also
Maintenance
program

P

Parking
brake
See
Brakes
See
also
Maintenance
program
Parts
See
Fundamentals
for
the
do-it-
yourself
owner
Poly-ribbed
belt
See
Maintenance
program
Power
steering
See
Steering
and
wheel
alignment
Power
steering
(luid
See
Maintenance
program

R

Radiator
See
Cooling
system
Radio
general
information
650-1audio
system
650-1
radio
connector
650-6
removing/installing
650-2speakersdoor
panel
speaker,
removing/
installing
650-5
left
footwell
speaker,
removing/
installing
650-3
rear
speaker,
removing/installing
650-5
right
footwell
speaker,
removing/
installing
650-4Rearsuspension
See
also
Maintenance
program
general
information
330-1
coil
spring,
removing/installing
330-4
CV
boot,
replacing
330-8
drive
axle,
removing/installing
330-6
drive
axles
330-6
final
drive
carrier
330-12
final
drive
carrier,
removing/installing
330-12
lower
control
arm,
removing/installing
330-12
rear
shock
absorber,
removing/
installing
330-3
rear
suspension
arms
330-9
ride
heíght
330-1
shock
absorbers
and
springs
330-2
trailing
arm,
removing/installing
330-10
trailing
arm
bushing,
replacing
330-11upper
control
arm,
removing/installing
330-12
rear
wheel
bearing,
replacing
330-5

rear
wheel
bearings
330-4
Rear
view
mirror
See
Exterior
trim,
bumpers
Receiver/drivr
See
Air
conditioning
Relays
See
Electrical
component
locations

INDEX
7

Ride
height
See
Front
suspension
or
Rearsuspension
Ring
antenna
See
Central
locking
and
anti-theft
Roof
See
Convertible
top
See
also
Sunroof
Roundel
See
Exterior
trim,
bumpers

S

Seat
belts
general
information
720-1
automatic
front
seat
belt
lock
tensioners
720-2
center
rear
lap-belt,
removing/
installing
720-5
front
seat
beltreel,
removing/installing
720-3
mechanical
spring
tensioner,
disarming
720-2
rear
seat
belt,
removing/installing
(fixed
seat
back
models)
720-4
rear
seat
belt,
removing/installing
(fold-down
seat
back
models)
720-5Seats
general
information
520-1
front
seats520-1
manual
front
seat
assembly
520-3
power
front
seat
assembly
520-4
removing/installing
520-1
rear
seats
520-5
rear
seat
cushion
and
backrest,
removing/installing
(fixed
seat
backmodels)
520-5
rear
seat
cushion
and
backrest,
removing/installing
(fold-down
seat
back
models)520-5
rear
seat
backrest
side
section,
removing/installing
(fold-down
seat
back
models)520-6
Shiftinterlock
See
Gearshift
linkage
Shiftlever
See
Gearshift
linkage
Shíftlock
See
Gearshift
linkage
Shock
absorber
See
Front
suspension
See
also
Rear
suspension
Side-impact
airbag
See
Airbag
system
(SRS)
Slave
cylinder
See
Clutch
Service
indicator
See
Maintenanceprogram
Solenoid
See
Battery,
starter,
alternator
Spark
See
Ignition
system
Spark
plugs
See
Maintenance
program