battery replacement BMW 323i 1997 E36 User Guide
[x] Cancel search | Manufacturer: BMW, Model Year: 1997, Model line: 323i, Model: BMW 323i 1997 E36Pages: 759
Page 167 of 759
NOTE-
NOTE-
"
The
Ole
speed
control
valve
signal
can
be
checked
The
intake
manifold
is
held
in
place
with
7
nuts
from
using
a
duty
cycle
meter
(or
dwellmeter)
.
Connect
the
above
and
2
support
bracket
bolts
from
undemeath
.
On
meter
to
the
valve
following
the
manufacturer's
in-
DME
3
.1
cars,
carefully
disconnect
the
idleair
hose
from
structions
.
Turn
on
the
WC
or
create
a
larga
air
leak
theintake
manifold
when
lifting
the
manifold
off
.
For
more
and
check
that
the
meter
reading
reacts
while
the
idle
information,
sea
113
Cylinder
HeadRemovaland
In-
speed
remainssteady
.
stallation
.
"
There
are
some
additional
inputs
to
the
control
mod-
ule
that
affect
idle
speed
(Le
.
throttle
position,
AIC-on
5
.
Disconnect
al¡
necessary
hoses
andremove
idle
speed
signals,
andAIT
Drive
position)
.
Check
these
signals
control
valve
.
if
idle
problems
persist
.
See
Tabla
i
orTable
j
.
Idle
speed
control
valva,
replacing
The
idle
speed
control
valve
is
mounted
beneath
the
intake
manifold
.
Accessing
the
valva
is
best
accomplishedby
first
re-
moving
the
intake
manifold
.
NOTE-
¡tis
recommended
that
the
intake
manifold
gaskets
be
replaced
whenever
the
intake
manifold
is
removed
.
1
.
Remove
top
enginecovers
from
engine
.
See
Fig
.
31
.
FUEL
INJECTION
130-21
6
.
Installation
is
reverse
of
Removal
.
Use
new
gaskets
when
installing
intake
manifold
.
NOTE-
Poor
driveability
may
be
noticed
afterinstalling
a
re-
placement
idle
speed
control
valve
.
After
about
10
min-
utes
of
driving,
the
system
will
adapt
the
base
setting
of
the
valva
and
the
idle
speed
should
retum
to
normal
.
Tightening
Torque
"
Intakemanifold
to
cylinder
head
(M7)
........
..
.
15±2
Nm
(11
ti
ft-Ib)
BOSCH
DME
M5
.2
COMPONENT
REPLACEMENT
On-Board
Diagnostics
11
(OBD
II)
is
incorporated
into
the
Bosch
DME
M5
.2
engine
management
systems
used
on
the
M44
engine
.
OBD
II
is
capable
of
detecting
a
full
range
of
faults
.
When
faults
are
detected,
a
Diagnostic
Trouble
Code
(DTC)
is
stored
in
the
system
ECM
.
The
Check
Engine
warn-
ing
light
will
also
come
on
if
an
emissions-relatad
fault
is
de-
tected
.
The
most
efficient
way
to
diagnose
the
Bosch
OBD
II
sys-
tem
is
by
using
a
specialized
scan
tool
.
The
OBD
II
system
is
capable
of
storing
hundreds
of
faults,
making
diagnostics
with
a
scan
tool
the
only
viable
method
.
Therefore,
system
diag-
nostics
is
not
covered
here
.
Fi
31
.
Remove
to
en
ine
covers
b
in
out
caPs
and
removin
NOTE-
nuts
(A)
9
.
P
g
y
Pry
g
g
"
The
OBD
11
fault
memory
(including
an
iiluminated
Note
14
L-te
at
cover
edge
(arrows)
.
Check
Engine
light)
can
only
be
reset
using
the
spe-
cial
scan
tool
.
Removing
the
connector
from
the
ECM
2
.
Remove
two
hold
down
nuts
from
fuel
injector
wiring
or
disconnecting
the
battery
will
not
arase
the
fault
duct
.
Pry
back
injector
connector
retainers
and
lift
off
memory
.
wiring
duct
.
"
The
16-pin
OBD
Il
diagnostic
connector
is
located
on
the
lower
left
dash
panel
.
Refer
to
Fig
.
1
.
3
.
Disconnect
intake
air
bootfrom
throttle
housing
.
Where
applicable
disconnect
accelerator
cable
and
cruise
"
BMW
special
scan
tool
ora
`generic"OBD
II
scan
tool
control
cable
from
their
brackets
.
must
be
used
to
access
DTCs
.
4
.
Unbolt
intake
manifold
and
move
it
out
of
way
enough
to
access
idle
speed
control
valva
.
"
Tablak
lists
engine
control
module
(ECM)
pinouts
for
the
DMEM5
.2
system
BOSCH
DME
M5
.
2
COMPONENT
REPLACEMENT
Page 169 of 759
001ía4
i
Fig
.
34
.
Intake
air
temperature
(IAT)
sensor
in
top
section
of
air
filter
housing
.
¡die
speed
control
valve,
replacing
side
of
the
throttle
body
.
See
Fig
.
35
.
1
.
Disconnect
harness
connector
from
¡die
valve
.
0012725
Fig
.
35
.
M44
engine
:
Throttle
housing
showing
(A)
throttle
position
sensor
(fPS)
and
(B)
¡die
speed
control
valve
.
2
.
Remove
twomountingscrews
holding
sensor
to
throttle
housing
.
The
¡die
speed
valve
on
the
M44
engine
is
located
on
the
FUEL
INJECTION
130-23
2
.
Disconnect
vacuum
hose
and
retaining
screws
.
3
.
Pull
¡die
speed
control
valve
from
its
fittings
.
4
.
Installation
is
reverse
of
rémoval
.
Always
replace
0-
rings
and
seals
.
NOTE
Poor
driveability
may
be
notíced
after
installing
a
re-
placement
¡dio
control
valve
.
After
about10
minutes
of
driving,
the
idie
speed
should
retum
to
normal
.
SIEMENS
MS
41
.1
COMPONENT
REPLACEMENT
On-Board
Diagnostics
II
(OBD
II)
is
incorporated
into
the
Si-
emens
MS
41
.1
engine
management
systems
used
in
the
M52
and
S52US
engine
.
Refer
to
Fig
.
36
.
OBD
11
is
capable
of
detecting
a
fui¡
range
offaults
.
When
faults
are
detected,
a
Diagnostic
Trouble
Code
(DTC)
is
stored
in
the
system
ECM
.
The
Check
Engine
warning
light
will
also
come
on
if
an
emissions-related
fault
is
detected
.
The
most
efficient
way
to
diagnose
the
Siemens
OBD
II
system
is
by
using
a
specialized
scan
tool
.
The
OBD
II
system
is
capa-
ble
of
storing
hundreds
of
faults,
making
diagnostics
with
a
scan
tool
the
only
viable
method
.
Therefore,
system
diagnos-
tics
is
not
covered
here
.
NOTE
-
"
The
OBD
11
fault
memory
(including
an
illuminated
Check
Engine
light)
can
only
be
reset
using
the
spe-
cial
scan
tool
.
Removing
the
connector
from
the
ECM
or
disconnecting
the
battery
will
not
erase
the
fault
memory
.
"
The
16-pin
OBD
11
diagnostic
connector
is
located
on
the
lower
left
dash
panel
.
Refer
to
Fig
.
1
.
"
BMW
special
scan
tool
ora
"generic"
OBD
11scan
tool
must
be
used
to
access
DTCs
.
3
.
Installation
is
reverse
of
removal
.
No
adjustment
is
nec
essary
.
"
Table
1
lists
engine
control
module
(ECM)
pinouts
forthe
MS
41
.1
systems
.
SIEMENS
MS
41
.
1
COMPONENT
REPLACEMENT
Page 185 of 759
160
Fuel
Tank
and
Fuel
Pump
GENERAL
.
.
.
.
.
.
...........
.
....
.
.
.
.
.
.
160-1
Operating
fuel
pump
for
tests
.
.
.
.
.
.
.......
.160-6
Fuel
Pump
Electrical
Tests
.
.
.
.
.
.
.
...
.
.
.
.
.
160-7
FUEL
TANK
AND
LINES
..
.
.
.
..........
160-2
Fuel
pump
electrical
circuit,
testing.
...
.
.
.
.
.
160-7
Fuel
tank,
draining
..
.
.
.
.
.
.
.
.
.
..........
160-2
Fuel
pump
power
consumption,
testing
.
.
.
.
.
.
160-7
Fuel
tank,
removing
and
installing
.........
160-3
Fuel
Delivery
Tests
....
.
.
.
...
.
.....
.
.
.
..
160-8
Fuel
Tank
Evaporative
Control
System
.....
160-4
Relieving
fuel
pressure
and
connecting
fuel
pressure
gauge
..
.
...........
.
.
.
..
160-8
FUEL
LEVEL
SENDERS
.
.
.
.
.
.......
.
.
.
160-4
System
pressure,
testing
.................
160-9
Fuel
level
senders,
testing
.
.
.
.
.
.......
.
.
.
160-5
Fuel
delivery
volume,
testing
.............
160-10
Fuel
leve¡
sender
and
fuel
pump
(right
side),
emoving
and
installing
.
.
.
.
.
.
160-5
TABLES
Fuel
leve¡
sender
(left
side),
a
.
FuelLeve¡
Sender
Resistances
...........
.
.
..
.160-5
removing
and
installing
.........
.
.
.
.
.
.
.
160-6
b
.
Fuel
Pump
Current
...
.................
..
...
160-8
c
.
Fuel
Pressure
Specifications
..............
.
..
160-10
FUEL
PUMP
.
.
.
................
.
.
.
.
.
.
.
160-6
d
.
Fuel
Pump
Delivery
Specifications
.........
.
..
160-10
Fuel
Pump
Fuse
and
Relay
.
.
.
....
.
.
.
.
.
.
.
160-6
GENERAL
This
repair
group
covers
service
information
specifically
for
The
cautions
and
warnings
on
this
page
should
beob
the
fuel
supply
system
.
Information
on
the
fue¡
injection
sys-
served
when
servicing
the
fuel
system
.
tem
is
covered
in
130
Fuel
Injection
.
NOTE-
Fue¡
filter
replacement
is
covered
in
020
Maintenance
Program
.
WARNING
-
"
The
fuel
system
is
designed
to
retain
pressure
even
when
the
ignition
isoff
.
When
working
with
the
fuel
system,
loosen
the
fuel
lines
slowly
toal-
low
residual
fuel
pressure
to
dissipate
gradually
.
Avoid
spraying
fuel
.
"
Before
beginning
any
work
on
the
fuel
system,
place
a
tire
extinguisher
in
the
vicinity
of
the
work
area
.
"
Fuel
is
highly
flammable
.
When
working
around
fuel,
do
not
disconnect
any
wires
that
could
cause
electrical
sparks
.
Do
not
smoke
or
work
near
heaters
or
other
tire
hazards
.
"
Always
unscrew
the
fuel
tank
cap
to
release
pres-
sure
in
the
tank
before
working
on
the
tank
or
fines
.
"
Do
not
use
a
work
light
near
any
fuel
.
Fuel
may
spray
onto
the
hot
bulb
causing
a
tire
.
"
Make
sure
the
work
area
is
properly
ventifated
.
FUEL
TANK
AND
FUEL
PUMP
160-1
CAUTION-
"
Prior
to
disconnecting
the
battery,
read
the
bat-tery
disconnection
cautions
given
at
the
front
of
this
manual
onpage
viü
.
"
Before
making
any
electrical
tests
with
the
ignition
tumed
on,
disable
the
ignition
system
as
de-
scribed
in
120
Ignition
System
.
Be
sure
the
bat-tery
is
disconnected
when
replacing
components
.
"
To
prevent
damage
to
the
ignition
system
or
the
electronic
fuel
system
components,
including
the
control
unit,
aiways
connect
and
disconnect
wires
and
test
equipment
with
the
ignition
off
.
"
Cleanliness
is
essential
when
working
with
the
fuel
system
.
Thoroughly
clean
the
fuel
fine
unionsbefore
disconnecting
any
of
the
fines
.
"
Use
only
clean
tools
.
Keep
removed
parts
clean
and
sealed
or
covered
with
a
clean,
lint-free
cloth,
especially
if
completion
of
the
repair
is
delayed
.
"
Do
not
move
the
car
while
the
fuel
system
is
open
.
"
Avoid
using
high
pressure
compressed
air
to
blow
out
fines
and
componente
.
High
pressure
can
rupture
infernal
seals
and
gaskets
.
"
Always
replace
seals
and
O-rings
.
GENERAL
Page 191 of 759
Fig
.
9
.
Fuel
pump
relay
terminal
identification
.
Fuel
Pump
Electrical
Tests
Troubleshooting
of
any
fuel
pump
fault
should
begin
with
checking
the
fuel
pump
fuse
and
the
fuel
pump
relay
.
The
DME
main
relay
should
also
be
checked
.
NOTE-
Special
tools
are
requíred
for
some
of
the
tests
de-
scribed
here
.
Fuel
pump
electrical
circuit,
testing
The
fuel
pump
electrical
circuit
diagram
is
shown
in
Fig
.
10
.
3
.
If
fuel
pump
does
not
run,
disconnect
black
harness
connector
from
tank
sender
unit
.
With
jumper
wire
con-
nectedas
described
in
step
2
above,
check
for
positive
(+)
batteryvoltage
at
harness
connector
terminals
.
See
Fig
.
11
.
FUEL
TANK
AND
FUEL
PUMP
160-
7
From
Main
Relay
(+15
power
with
key
in
run
From
B+juretion
point
orstartposition)
(batteryvoRageatalltirnes)
'
.5
RD/Nrr
1
.5
RD
1
.5
GNNI
From
Engine
2
.5
GNNI
Control
Module
15
2
.5
GNNI
Ground
(below
center
console)
Fig
.
10
.
Fuel
pump
electrical
circuit
.
30
-~
Relay
Fuel
Pump
8~T
I
1
s
ám
61
Front
Power
I
a
1
Distribution
Box
I_
16
WIRING
COLOR
CODE
BK
-
BLACK
BR
-
BROWN
Fuel
Pump
RD
-
RED
(in-tank)
M
YL
YELLOWGN
-
GREENBU
-
BLUE
1
VI
-
VIOLET
GY
-
GREY
WT
-
WHITE
PK
-
PINK
0011946
4
.
If
voltage
and
groundare
present,
fuel
pump
is
proba-
bly
faulty
.
If
there
is
no
voltage,
check
wiring
From
fuel
pump
Reay
and
make
sure
Reay
is
functioning
correctly
.
CAUTION-
Fuseandrelaylocationsmayvary
.
Usecara
when
Fuel
pump
power
consumption,
testing
troubleshooting
the
electrical
system
at
the
fuselrelay
panel
.
To
resolve
problems
in
identify-
NOTE-
ing
a
relay,
see
en
authorízed
BMW
dealer
.
"
To
achieveaccurate
testresults,
fhe
battery
voltage
at
the
connector
should
be
approximately
13
volts
.
1.
Remove
rearseat
cushion,
pull
right
side
insulation
mat
Charge
the
battery
asnecessary
.
back
to
expose
fuel
tank
accesscover
.
Remove
cover
.
q
higher
than
normal
power
consumption
usually
fin-
to
expose
wiring
connections
.
dicates
a
worn
fuel
pump,
which
may
cause
intermit-
tentfuel
starvation
due
lo
pump
overheating
and
2
.
Remove
fuel
pump
relay
and
opérate
fuel
pump
as
de-
seizure
.
The
only
remedy
is
pump
replacement
.
Be
scribed
under
Operating
fuel
pump
for
tests
earlier
.
sure
to
check
that
thereturn
fine
and
the
pump
pickup
Pump
should
run
.
Disconnect
jumper
wire
when
fin-
are
not
obstructed
before
replacing
the
pump
.
ished
.
1
.
Remove
rear
seat
cushion,
pull
right
side
insulation
mal
back
to
expose
fuel
tank
accesscover
.
Remove
cover
to
expose
wiring
connections
.
2
.
Disconnect
(black)
harness
connector
from
fuel
pump
.
3
.
Connect
an
ammeter
and
an
insulated
jumper
wire
be-
tween
terminals
in
connector
and
corresponding
pump
terminals
.
See
Fig
.
12
.
FUEL
PUMP
Page 196 of 759
170-2
RADIATOR
AND
COOLING
SYSTEM
Cooling
Fans
TROUBLESHOOTING
Belt-driven
coolingfan
.
The
primary
cooling
fan
is
belt-
driven
.
It
is
mounted
to
the
frontof
the
coolant
pump
through
a
fan
clutch
.
The
fan
clutch
is
a
viscous
fluid
coupling
that
con-
trols
the
speed
of
thefan
based
on
engine
compartment
tem-
perature
.
Electric
cooling
fan
.
Models
with
M44
engine
and
stan-
dard
transmission
substitute
an
electric
fan
for
the
belt-driven
viscous
fan
.
This
is
attached
to
the
rear
of
the
radiator
and
controlledvia
the
DME
5
.2
engine
management
system
.
NOTE-
The
electric
cooling
fan
in
these
models
is
activated
by
the
engine
control
module
(ECM)
.
Auxiliary
coolingfan
.
In
al¡
models
a
two-speed
electric
auxiliary
cooling
fan
is
mounted
behind
the
front
grill
and
in
front
of
the
radiator
.
This
fan
is
primarily
used
for
the
A/C
sys-
tem,
but
also
operates
when
the
coolant
temperature
ex-
ceeds
a
predetermined
leve¡
.
Warnings
and
Cautions
The
following
warnings
and
Cautions
should
beobserved
when
working
on
the
cooling
system
.
WARNING
-
"
Atnormal
operating
temperature
the
cooling
sys-
tem
is
pressurized
.
Allow
the
system
to
cool
as
long
as
possible
before
opening-a
minimum
of
an
hour-then
release
the
cap
slowly
to
allow
sale
release
of
pressure
.
"
Releasing
the
cooling
system
pressure
lowers
the
coolants
boiling
point
and
the
coolant
may
boíl
suddenly
.
Use
heavy
gloves
and
wear
eye
and
laceprotection
to
guard
against
scalding
.
"
Use
extreme
care
when
draining
and
disposing
of
engine
coolant
.
Coolant
is
poisonous
and
lethal
to
humans
and
pets
.
Pets
are
attracted
to
coolant
because
of
its
sweet
smell
and
taste
.
Consult
a
veterinarian
immediately
if
coolant
is
ingested
byan
animal
.
CAUTION-
"
Avoidadding
cold
water
to
the
coolant
while
the
engine
is
hot
or
overheated
.
If
it
is
necessary
to
add
coolant
to
ahot
system,
do
so
only
with
the
engine
running
and
coolant
pump
tuming
.
"
Prior
to
disconnecting
the
battery,
read
the
bat-
tery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
viii
.
TROUBLESHOOTING
Most
cooling
system
faults
can
be
grouped
into
one
of
three
categories
:
"
Cooling
system
leaks
"
Poor
coolant
circulation
"
Radiator
cooling
fan
faults
When
investigating
the
cause
of
overheating
or
coolant
loss,
begin
with
a
visual
inspection
.
Be
sure
to
check
the
con-
dition
and
tension
of
the
coolant
pump
drive
belt
.
Check
hoses
for
cracks
or
softness
.
Check
clamps
for
looseness
.
Check
the
coolant
leve¡
and
check
for
evidence
of
coolantleaks
from
the
engine
.
Check
that
the
radiator
fins
are
not
blocked
with
dirt
or
de-
bris
.
Clean
the
radiator
using
low-pressure
water
or
com-
pressed
air
.
Blow
outward,
fromthe
engine
side
out
.
Inspect
the
coolant
pump
by
first
removing
the
drive
belt
from
the
pump
.
Firmly
grasp
opposite
sídes
of
the
pulley
and
check
for
play
in
all
directions
.
Spin
the
pulley
and
check
that
the
shaft
runs
smoothly
.
NOTE-
The
coolant
provides
lubrication
for
the
pump
shaft,
soan
occasional
drop
of
coolant
leaking
from
the
pump
is
acceptable
.
If
coolant
drips
steadily
from
the
vent
hole,
the
pump
should
be
replaced
.
The
cooling
system
becomes
pressurized
at
normal
operat-
ing
temperature,
which
raises
the
boiling
point
of
the
coolant
.
Leaks
may
prevent
the
system
from
becoming
pressurized,
allowing
the
coolant
to
boil
at
a
lower
temperature
.
If
visual
ev-
idence
is
inconclusive,
a
cooling
system
pressure
test
can
help
to
pinpointhard-to-find
leaks
.
If
the
cooling
system
is
full
of
coolant
and
holds
pressure,
the
next
most
probable
cause
of
overheating
are
:
"
Faulty
radiator
fan
"
Loose
or
worn
drive
belt
"
Failed
thermostat
or
coolant
pump
"
Clogged/plugged
radiator
or
coolant
passages
.
NOTE
-
"
Some
early
style
coolant
pumps
were
fitted
wíth
fi-
berlplastic
type
impellers
.
Over
time,
this
impeller
can
wear
away
and
result
in
overheating
.
The
plastic
im-
peller
can
also
slip
or
free-wheel
on
the
pump
shaft
.
If
the
engine
overheats
and
no
other
faults
canbe
found,
theold
style
impeller
may
be
the
cause
of
the
problem
.
"
Only
pumps
with
the
updated
metal
impeller
should
be
used
for
replacement
.
Page 315 of 759
GENERAL
This
repair
group
covers
front
and
rear
door
repair
informa-
tion,
including
removal
and
installationof
the
interior
doorpan-
els
.
DOORS
WARNING
-
Late
M3
moddis
havealuminum
doors
.
Use
extra
care
in
handling
aluminum
parts
in
order
to
avoid
damage
from
gouging
or
corrosión
.
NOTE-
"
For
information
on
the
power
door
windows
and
door
glass
replacement,
sea512Door
Windows
.
"
Forinformation
on
the
power
door
locking
system,
see
515
Central
Locking
and
Anti-Theft
.
WARNING
-
Some
1997
and
all
1998
cars
are
fitted
with
side-im-
pact
airbags
in
the
front
doors
.
When
servicing
doors
on
cars
with
front
side-impact
airbags,
always
dis-
connect
the
negative
(-)
battery
terminal
.
See
721
Airbag
System
(SRS)
for
cautions
and
procedures
relating
to
the
airbag
system
.
Front
orrear
door,
removing
and
installing
1
.
If
workingon
front
door
with
side-impact
airbag,
discon-
nect
negative
(-)
battery
cable
.
CAUTION
-
Prior
to
disconnectiog
the
battery,
read
the
battery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
vüi
.
2
.
Unbolt
main
harness
connector
at
door
pillar
and
sep-
arate
connector
.
See
Fig
.
1
.
411
Doors
GENERAL
.............
.
.
.
.
.
.
.
.
.
.
.
.
.
..
411-1
DOOR
PANELS
.
.
.
.
.
.
.
...
.
.
.
.
.
.
.
.
.
...
.
.
411-4
Front
door
trim
panel,
removing
and
installing
.411-4
DOORS
..
.
.
.
.
.
.
.
.
.
...
.
.......
.
....
.
.
.
411-1
Rear
door
trim
panel,
removing
and
installing
.411-5
Front
or
reardoor,
removing
and
installing
..
.
411-1
Rear
side
trim
panel,
removing
and
installing
Door
check,
replacing
.
.
.
.
.
.
.
.
.
.
.
.
.......
411-3
(coupemodel)
.
.
.
.
.
.
....
.
.............
411-6
Door
Adjustment
.......
.
.
.
.
.
.
.
.
.
.
.
.....
411-3
Rear
side
trim
panel,
removing
and
installing
(convertible
models)
.
...
.
.
.
.
.
.
.
.
.
.
.
...
.
411-6
DOORS
411-1
Fig
.
1
.
Door
harness
connector
being
removed
fromdoor
pillar
.
Re-
move
mountingscrews
atA,
then
separate
connector
by
pulling
upon
harness
lock(top
arrow)
.
3
.
Withdoor
fully
open,
remove
pin
bolts
from
top
and
bot-
tom
door
hinges
.
See
Fig
.
2
.
0011650
Fig
.
2
.
Door
hinge
pin
bolt
(arrow)
.
Top
hinge
shown
.
Also
remove
pin
bolt
from
lowerhinge
.
DOORS
Page 331 of 759
GENERAL
......
.
........
.
.
.
.
.
.
.
...
.
.
.
512-1
WINDOW
SERVICE,
Front
door
window,
initializing
..
.
.........
.
512-1
2-DOOR
MODELS
.
...
.
......
.
........
.512-5
WINDOW
SERVICE,
Front
door
window,
removing
and
installing
(2-door
models)
.
.
...
.
...............
.
512-5
4-DOOR
MODELS
.
.
.
.
................
.
512-2
Front
door
window,
adjusting
Front
door
window,
removing
and
installing
(2-door
models)
.
.
.
.
.
.
.........
.
.
.
...
.512-7
(4-door
models)
.
.
.
.
.
...
.
.
.
.
.
.
.
.
.
.....
512-2
Rear
vent
window
or
vent
latch,
Front
door
window,
adjusting
replacing
(2-door
models)
....
.
.
.
.
.
.
.
...
512-11
(4-door
models)
.
.
.
.
.
...
.
...
.
.
.
.
.
.....
512-3
Rear
door
window,
removing
and
installing
WINDOW
REGULATOR
SERVICE
.
.
.
..
.512-12
(4-door
models)
.
.
.
.....
.
.
.
.
...
.
.
.....
512-4
Door
window
regulator
and
motor,
Rear
door
fixed
glass,
removing
and
installing
removing
and
installing
.
.
.
...
.
.
.
.
.
.
.
.
.
.
512-12
(4-door
models)
.
.
.
.
.
...
.
.
.
.
.
.
.
.
.
.....
512-4
GENERAL
Front
door
window,
initializing
This
heading
covers
door
glass,
window
regulator
and
pow-
er
window
motor
repair
information
.
Before
proceeding
with
window
repairs,
specifically
on
late
cars
fitted
with
front
side-
impact
airbags,
read
the
procedure
through
to
determine
the
scope
of
the
repair
.
The
bonded
windshield
and
rear
glass
are
replaced
using
special
adhesives
and
tools
.
It
is
recommended
that
bonded
glass
replacement
bedone
by
a
professional
glass
installer
.
WARNING
-
"
Always
wear
hand
and
eye
protection
when
workíng
with
broken
glass
.
"
ff
a
window
is
broken,
all
of
the
glass
bits
should
be
vacuumed
out
of
the
door
cavity
.
Use
a
blunt
screwdriver
to
clean
out
any
remaining
glass
pieces
from
the
window
guide
rails
.
CAUTION-
ff
battery
power
is
lost
or
the
battery
has
been
dis-
connected,
windows
mustbe
re-initialized
.
Both
one
touch
up/down
and
pinch-protection
will
be
in-
active
until
windows
are
re-initialized
.
Sea
below
.
512
Door
Windows
DOOR
WINDOWS
512-1
The
front
door
windows
incorporate
a
pinch-protection
fea-
ture
as
well
as
one-touch
up/down
(1994
and
later
models)
.
In
order
for
these
featuresto
work
correctly,
the
mechanical
stop
reference
point
must
be
re-initialized
after
repairs
are
carried
out
.
1
.
Closedoor
and
turn
ignition
keyon
.
Fully
open
front
window
.
2
.
Fully
close
front
window
.
4
.
Repeat
for
remaining
window
.
5
.
The
windows
should
now
be
initialized
and
the
anti-
pinch
and
one-touch
up/down
functions
should
be
en-
abled
.
GENERAL
Page 429 of 759
612
Switches
and
Electrical
Accessories
GENERAL
.
.
.
.
.
.
.
.
.
...
.
.
.
.
.
...
.
......
.612-1
Headlight
switch,
replacing
..
.
...
.
.
.
.
.
.
.
.
.
612-5
Foglight
switch,
replacing
....
.
.
.
.
.
.
.
.
.
.
.
.
.
612-5
INTERIOR
SWITCHES
.
.
...
.
.
.
.
.
.
.
.....
612-1
Hazard
warning
switch,
replacing
.
.
.
.
.
.
.
.
.
.612-5
Turn
signal
switch
and
wiper
switch,
Powerwindow
switch,
replacing
.
.
.
...
.
.
.
.
.
612-5
replacing
.
.
.
.
.
.
.
...
.
.
.
.....
.
....
.
.
.
.
612-1
Outside
mirrorswitch,
replacing
.
.
.
.
.....
.
.
.612-6
Ignition
Switch
Assembly
.
.
.
.
.
.
.
.
....
.
...
612-3
Ignition
electrical
switch,
replacing
.
...
.
....
612-3
INTERIOR
LIGHTS
.
.
................
.
..
612-6
Ignition
lock
cylinder,
replacing
.
.
.
.
.....
.
..
612-4
Dome
light,
rear
map
lights,
trunk
light,
Headlight
and
Foglight
Switch
Assembly
.
.
.
.
612-5
replacing
bulbs
.
......
.
.
.
.
.
.
.
.
.
.....
.
.612-7
GENERAL
Turn
signal
switch
and
wiper
switch,
replacing
Thissection
covers
replacement
of
interior
switches
and
accessories
.
The
procedures
for
removing
the
turn
signal
stalk
switch
and
the
wiper
system
stalk
switchare
similar
.
When
working
on
electrical
switches,
always
disconnect
the
negative
(-)
cable
from
the
battery
and
insulate
the
cable
end
to
prevent
accidental
re-connection
.
CAUTION-
Prior
to
disconnectiog
the
battery,
read
the
battery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
viii
.
WARNING
-
The
cars
covered
by
this
manual
are
equipped
with
a
Supplemental
Restraint
System
(SRS)
that
auto-'
matically
deploys
one
or
more
airbags
.
Each
airbag
unit
houses
an
explosive
powerful
charge
.
Any
work
involving
the
SRS
system
should
only
be
per-
formed
byan
authorized
BMW
dealer
.
Making
re-
pairs
without
the
proper
knowledge
and
special
test
equipment
may
cause
serious
personal
injury
.
See
721
Airbag
System
(SRS)
3
.
With
front
wheels
pointed
straight
ahead,
remove
steer-
"
Testing
and
replacement
information
for
the
oil
ores-
¡ng
wheel
.
See
320
Steering
and
Wheel
Alignment
.
sure
switch
is
covered
in
119
Lubrication
System
.
NOTE-
"
Wirfng
diagramscan
be
found
in
Electrical
Wiring
Diagrams
.
"
Fuse,
relay
and
electrical
component
locations
can
be
found
in
610
Electrical
Component
Locations
.
"
Replacement
information
for
thetransmission
gear
position/neutral
safety
switch
is
covered
in
250
Gear-
shift
Unkage
.
INTERIOR
SWITCHES
NOTE
-
To
preventmarring
interior
trim,
wrap
the
tips
of
screw-
drivers
and
pliers
with
tape
beforeprying
out
switches
or
electrical
accessories
.
SWITCHES
AND
ELECTRICAL
ACCESSORIES
612-1
1
.
Disconnect
negative
(-)
cable
from
battery
and
cover
terminal
with
insulating
material
.
2
.
Remove
airbag
unit
from
steering
wheel
.
See
721
Air-
bag
System
(SRS)
.
Store
airbag
unit
in
a
safe
placew¡th
pad
facing
up
.
NOTE
-
To
helo
with
reassembly,
mark
steering
wheel
and
col-
umn
before
disassembly
.
4
.
Remove
trim
panel
from
lower
left
side
of
instrument
panel
.
See513
Interior
Trim
.
INTERIOR
SWITCHES
Page 437 of 759
INSTRUMENT
CLUSTER
....
.
.
.
.
.
...
.
..
620-1
Instrument
cluster,
seif-testing
.
.
.......
.
..
620-1
Instrument
cluster,
removing
and
installing
...
620-1
Instrument
cluster
bulbs,
replacing
.
.
.
.
.
.
...
620-2
GENERAL
This
repair
group
covers
removal
and
installation
of
the
in-
strument
cluster
and
the
Multi-information
Display
(MID)
mod-
ule
.
Bulb
replacement
information
for
these
units
is
also
included
here
.
NOTE
-
A
quick
check
of
the
temperature
gauge
and
its
electri-
cal
circuitis
given
in
170
Radiator
and
Cooling
Sys-
tem
.
Use
this
procedure
to
diagnosea
faulty
temperature
gauge
INSTRUMENT
CLUSTER
When
servicing
the
instrument
cluster,
always
disconnect
the
negative
(-)
cable
from
the
battery
and
insulate
the
cable
end
to
prevent
accidental
re-connection
.
Instrument
cluster,
seif-testing
Severa¡
different
versions
of
the
basic
instrument
cluster
havebeen
fitted
in
E36
cars
.
It
is
possibleto
perform
an
instru-
ment
cluster
test
and
display
system
test
information
.
Some
of
the
information
displayed
by
the
instrument
cluster
during
seif-testing
is
used
for
interna¡
BMW
organizationpur-
poses,
suchasmatching
the
correct
instrument
cluster
com-
ponents
during
parts
replacement
.
Other
functions
test
the
various
instrument
modules
.
Self-test
is
also
used
to
recode
the
instrument
cluster
after
removal
.
In
later
production
vehicles
(1996
and
later)
the
test
results
canbe
downioaded,
via
the
diagnostic
plug,
byan
authorized
BMW
dealertechnician
.
1
.
Turn
ignition
to
"radio"position
.
2
.
Press
and
hold
reset
button
on
trip-odometer
untiltrip-
odometer
display
shows
numerical
codes
.
620
Instruments
4
.
Turn
off
ignition
.
Instrument
cluster,
removing
and
installing
INSTRUMENTS
620-1
GENERAL
.....
.
.
.
.
.
.
.
.
.
.........
.
....
620-1
Odometer
coding
plug,
replacing
.....
.
.
.
.
.
.
620-2
Vehicle
speed
sender,
replacing
...
.
.
.
.
.
.
.
.
620-3
MULTI-INFORMATION
DISPLAY
(MID)
.
.
.
620-4
Multi-Information
Display,
removing
and
installing
..
.
....
.
.........
620-4
3
.
With
each
subsequent
press
of
the
button,
a
different
function
is
tested
.
Some
functions
will
activate
need1e
gauges
.
1
.
Disconnect
negative
(-)
cable
from
battery
and
cover
terminal
with
insulating
material
.
CAUTION-
Prior
to
disconnectiog
the
battery,
read
the
battery
disconnection
cautionsgiven
at
the
front
of
this
manual
on
page
vi¡¡
.
2
.
Remove
airbag
unit
from
steering
wheel
.
See
721
Air-
bag
System
(SRS)
.
Store
unit
in
a
safe
place
.
WARNING
-
The
airbag
is
an
explosive
devfce
and
should
be
treated
with
extreme
caution
.
Improper
handling
of
the
airbag
could
cause
serious
injury
or
death
.
Store
the
airbag
with
the
horn
pad
facing
up
.
If
stored
facing
down,
accidental
deployment
couldpropel
it
vfolently
into
the
air,
causing
injury
.
3
.
With
front
wheels
pointed
straight
ahead,
remove
steer-
ing
wheel
.
See
320
Steering
and
Wheel
Alignment
.
4
.
Remove
instrument
cluster
retaining
screws
.
See
Fig
.
1
.
5
.
Place
a
towel
over
steering
column
.
Carefully
tilt
top
of
cluster
out
of
dash
panel
.
Unlock
and
disconnect
har-
ness
connectors
from
back
of
cluster
.
See
Fig
.
2
.
INSTRUMENT
CLUSTER
Page 479 of 759
1
.
Disconnect
negative
(-)
cable
from
battery
and
cover
negative
terminal
with
insulating
material
.
CA
UTION-
Prior
to
disconnectiog
the
battery,
read
the
battery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
viii
.
2
.
Remove
driver
sideairbag
from
steering
wheel
.
See
Driver
side
airbag,
removing
and
installing
in
this
repair
group
.
3
.
With
wheels
facing
straight
ahead
and
steering
wheel
centered,
remove
steering
wheel
.
See320
Steering
and
Wheel
Alignment
.
4
.
Remove
contact
ring
cover
(flat
plastic
ring
containing
warning
text)
from
steering
wheel,
íf
applicable
.
5
.
Disconnect
ground
wire,
if
applicable
6
.
Lift
out
plastic
lock
from
steering
wheel,
if
applicable
.
See
Fig
.
2
.
0011903
Fig
.
2
.
Airbag
contact
ring
lock(arrow)
.
Pry
out
lock
and
remove
spríng
from
behind
lock
.
Some
airbag
steering
wheels
are
not
equipped
with
contact
ring
lock
.
WARNING
-
"
The
contact
ring
lock
holds
the
contact
ring
in
the
centered
position
.
Once
the
lock
is
removed,
the
contact
ring
is
free
to
rotate
.
Do
not
allow
the
con-
tact
ring
to
rotate
once
the
lock
is
removed
.
"
If
the
contact
ring
is
accidentally
rotated
outof
center,
turn
the
ring
either
fully
clockwise
orcoun-
terclockwise,
then
turn
in
the
opposite
direction
3
complete
revolutions
until
the
alignment
arrow
canbe
seen
through
the
lock
opening
.
AIRBAG
SYSTEM
(SRS)
721-
3
Airbagcontact
ring,
replacing
7
.
Remove
mounting
nutsor
screws
from
contact
ring
.
See
Fig
.
3
.
Disconnect
wire
lead(s)
andremove
contact
The
airbag
contact
ring
is
mounted
to
the
rear
of
the
steer-
ring
from
rear
of
steering
wheel
.
ing
wheel
and
is
made
up
of
a
wireribbon
that
cofs
and
un-
coils
as
the
steering
wheel
is
tumed
.
The
contact
ring
assures
continuous
electrical
contact
to
the
driver
side
airbag
unit
.
Fig
.
3
.
Airbag
contact
ring
mounting
fasteners(arrows)
.
8
.
Installation
is
reverse
ofremoval,noting
the
following
:
"
Coat
horn
slip
ring
(electrical
contact
ring)
with
CRC
®
copper
paste
before
installing
steering
wheel
.
"
Press
on
lower
lock
until
it
ís
fully
engaged
.
"
When
installing
contact
ringlock,
make
sure
lock
spring
engages
pins
on
lock
and
lock
cover
.
"
Special
instructions
apply
when
installing
airbag
equipped
steering
wheel
.
See320
Steering
and
Wheel
Alignment
.
Early
cars
(through
1993)
:
"
Route
wiring
lead
for
horn
through
squareopening
in
steering
wheel
.
"
When
installing
a
new
contact
ring
from
BMW,
remove
locking
screw
after
installing
the
contact
ringto
steer-
ing
wheel
.
See
Fig
.
4
.
"
Lock
contact
ring
mounting
fasteners
in
place
using
lacquer
paint
or
varnish
.
0011904
Fig
.
4
.
Airbag
contact
ring
locking
screw
(arrow),
as
installed
on
new
replacement
part
from
BMW
(early
production
cars)
.
AIRBAG
SENSORS
AND
ELECTRONICS