doors BMW M3 1998 E36 Owner's Guide

721-2



AIRBAG
SYSTEM
(SRS)

Fig
.
1
.



Airbag
system
components
.

AIRBAG
SENSORSAND
ELECTRONICS

CA
UTION-

"
If
an
airbag
is
activated,
the
following
compo-
nents
must
be
replaced
:
Airbag
with
contact
ring
;
-Pyrotechnic
seat
belt
tensioners
(if
fitted)
;
-SRS
Control
module
;
-Impact
sensors
;
All
airbags
which
did
not
deploy
.

"
Consult
your
BMW
dealer
for
parts
and
service
information
.

TheE36
airbag
system
consists
of
the
following
compo-

nents
:
crash
sensors
(in
earlycars,
through
1993),
an
elec-

tronic
control/monitoring
module
(with
integrated
crash

sensor
in
ZAE
systems),
an
indicator
light
in
the
instrument
panel,
and
inflatable
airbags
equipped
with
gas
generators
in

the
steering
wheel
and
in
the
passenger
side
of
the
instrument

panel
(ZAE
systems)
.

Some
1997
and
al¡
1998
carsalso
have
side-impact
airbags

in
the
front
doors
.

AIRBAG
SENSORS
AND
ELECTRONICS

1.
Crash
sensors
(through
1993)



wheel
2
.



SRS
control
module
in
front
of



5
.



Side-impact
airbags
(1997/98)
glove
compartment
(through



6
.
ZAE
control
module
under
rear
1993)



seat
(from
1994)
3
.



Passenger
side
airbag
unit
in



7
.
Side-impact
airbag
crash
sensors
dashboard
(ZAE
system)



in
door
silis
(1997/98)
4
.



Driver
side
airbag
unitin
steering



8
.



Knee
bolsters

In
addition
to
the
airbags,
the
vehicles
are
equipped
wíth

knee
bolsters
for
extra
protection
.

SRS
Warning
Light
and
Fault
Display

The
airbag
system
utilizes
a
self-diagnostic
control
module

to
detect
and
store
system
faults
.
If
a
fault
is
detected,
the

SRS
indicator
in
the
instrument
cluster
comes
on
and
stays

on
.

When
the
ignition
key
is
tumed
on,
the
indicator
light
will
illu-

minate
for
approximately
4-6
seconds
.
The
illuminated
light

indicates
the
self-testof
the
electronic
control/monitoring

module,
the
ignítors
and
crash-sensorcircuits,
and
the
system

wiring
.
The
airbag
system
should
be
inspected
byan
autho-

rized
BMW
dealer
if
the
indicator
light
does
not
come
on,
ifit

does
not
go
out
in
approximately
4-6
seconds
after
switching

onthe
ignition,
or
if
the
light
comes
on
during
driving
.
If
the

system
has
detected
a
fault,
the
light
will
come
on
and
stay
on
.

Front
side-impact
airbag,

removing
and
installing

1
.
Disconnect
negative
(-)
cable
from
battery
and
cover

negative
terminal
with
insulating
material
.

CA
UTION-



"
Store
the
removed
airbag
unit
with
the
soft
pad
Prior
to
disconnectiog
the
battery,
read
the
battery



facing
up
.
ff
stored
facíng
down,
accidental
de-
disconnection
cautions
given
at
the
front
of
this



ployment
could
propel
it
violently
into
the
air,
manual
on
page
viii
.



causing
injury
.

2
.
Remove
inside
door
panel
as
described
in
411
Doors
.

Remove
vapor
shield
.

3
.
Disconnect
electrical
harness
connectorfrom
door-

mounted
airbag
unit
.
See
Fig
.
12
.

WARNING
-

The
plug
connector
insidethe
door
is
not
marked
in

orange,
unlike
other
SRS
connectors
in
the
car
.

Fig
.
12
.
Front
side-impact
airbag
(inner
door
panel
removed)
.
A
is

electrical
harness
connector
.

AIRBAG
SYSTEM
(SRS)



721-
7

CAUTION-

"
The
electrical
harness
connector
of
the
side-im-
pact
airbag
unit
may
be
either
on
the
sideof
the
unít
or
in
the
back
When
removing
and
installing
the
unit,
pay
attention
to
the
routing
of
the
har-
ness
to
avoid
kinks
orbreaks
in
the
wire
.

4
.
Remove
mounting
screws
andremove
airbag
from

door
.

5
.
Installation
is
reverse
of
removal
.

WARNING
-

The
side-impact
airbag
mounting
screws
must
al-
ways
be
replaced
any
time
they
are
removed
.
Usenew
screws
with
factory-applied
locking
sealer
.

Tightening
Torque

"
Side-impact
airbag
to
door



..
.....
8
.5
Nm
(75
in-lb)

AIRBAGS

ELE-234
ELECTRICAL
WIRING
DIAGRAMS

82908

L
1
3
--J
8
RED/
BLU

I



TERMINAL30H
I
12



BLKIGRN



STARTING/CHARGING
I



ICONN10182



SYSTEM

BLK/GRV
REVOLUTIONSIG
I~
~
9
REVOLUTIONSIG
I)
-
DATASIG
I
20



GRN/RED
PL
USSUPPLV
I



23



BLK/WHT
ORBLK
VOLTSUPPLV
I
24



VEL/WHT
ORYELIBLK
I
CONN
13253
DOORSIG
I
2



BRN/GRV/VEL
DOORSIG
I
3



BRNIBLU/VEL
OPEN
SIG
I



0



VIOIWHT
CLOSES
IG
I



7



BLK
WHT
OPENSIG
I
8



WHT/GRN
CLOSE
SIG
I



9



BLUIGRN

I



WHT/GRN
DATASIG(CONV)
I
5



WHT/VEL



WHT/VEL



v

BLK/GRV
LATE
SIG
iBLK/G
RN
8
BLU/GRN



BLU/GRN
n
CLOSE
SIG



12
I
CLOSES
I
G
I



9



BLU/VEL



BLU/YEL



13
I
CLOSESIG
I
10



WHT/VEL



WHT/VEL



14
I



I

I



DATASIG(OONV)
I
11



WHT/GRN
OPEN
SIG
(4
DOOR)ICONN13255

BODVELECTRONICS
CONTROL
MODULE
(ZKE
IV)

I



h6
BRN/GRV/VEL



I

I



BRN/GRV/YEL
I



I
1
5
BRN/BLU/VEL

ANTI-THEFT
CONTROLMODULE

VOLTSUPPLV
I
VOLTSUPPLV
II
T



BLU/GRN
POWERSUPPLV
I~
ED
/
6LU
MTRSIG
I%
13



L
ED-'
W
.
MTRSIG
I
l
14



VEL/GRN
I
CONN
13252

CHILDPROTECTSIG
I
10



GRN/BLU
BLU/VEL
OATASIG
I
15



BLU/VEL
I



1
DATA
BIG



18



BLK
RED
I



BLKIRED
2
DATA
SIG
I



17



WHT/RED



WHT/RED



3
I
CONN13254



6RN/RED
4
DATA
SIG
I



1



BLKIRED



BLK/RED



8
OPEN
SIG
I



2



BLK/YEL
BLK/VEL
8
OPEN
SIG
I



3



BLKIRED



SLK/RED
7
OPEN
BIG
I



4



WHT/GRN
.
._
.
._



]



I



WHT/6RN
8

BRN/GRYIV
EL

DRIVERS
DOOR
J
AME
SWITCH

PASSENGERB



B
DOOR
JAMB
SWITCH



G203
SR
.



(CONVERTIBLE)
.
BRN



~~,
G303

HOT
AT
ALL
TIMES



DRIVERS
POWER
WINDOW
MOTOR



PASSENGERS
POWER
WINDOWMOTOR
_
_
r~~L,
'U"-1
FRONTPOWER
I



/
F14



I
DISTRIBUTION
BOX

(E%
CONVERTIBLE)

Power
Windows

1994-97
Except
318ti
(1
of
2)

CHILD
PROTECTION
CONTROL
(6
DOOR
ONLY)

(EX
CONVERTIBLE)



.



'



1



'
-



"

INSTRUMENT
CLUSTER
SYSTEM

57

G302

H



I



WHT
WHDT



RED
/
GRNI


GRN
/
I



RED
/
N



"
BRN
+



4
41



8I



3I4
G203
(CONVERTIBLE)
I
GRN/I



DRIVERS
PASSENGERS
POWER



POWER
G301
BLU



0



WINDOW



WINDOW
SWITCH



~



SWITCH

~



I



II
s
~-
-
l°{°lJ
I
-~
~J



~

CLOSESIG(4DOOR)
I
10

INTERIOR
LIGHTS
SYSTEM

ELE-236
ELECTRICAL
WIRING
DIAGRAMS

HOTATALLTIMES
f
-
-T
USE
-1FRONTPOWER
F14



I
DISTRIBUTION
BOX

RED/
:
BLU
:

I



STARTERSIG
I
12



BLKIGRN



STARTING/CHARGING
I



I
X
10182



SYSTEM

10452
9

VOLT
SUPPLY
I
fi~
IIIJWHT
VOLTSUPPLY
I
j
7



BLU/GRN
POWERSUPPLY
I
S}



REOIBLU
MTRSIG
I
13~
BLK/WHT
MTRSIG
I
%
14



YEL/GRN
I
X1]252
REVOLUTIONSIG
I
~
9
BLKIGRY
REVOLUTIONS
.
I
)_2_
YELIGRY
DATASIG
I
20



GR
/RED
PLUSSUPPLY
D
23



BLK
VOLTSUPPLY
I
224



YEL/BLK
I
X13253

Power
Windows

1998Except
3181,
318ti
(1
of
2)

DOORSIG
I
2



BRNIGRY/YEL
DOORSIG
I
3



BRNIBLU/YEL
OPENS
IG
I



B



VIO/WHT
CLOSESIG
I
7



BLK/WHT
OPENSIG
I
3



WHTIGRN
CLOSES10
I
9



BLU/GRN
CHILDPROTECTSIG
I
10



GRN/BLU
DATASIG
I
15



BLU/YEL
I



BLU/YEL
1
SIG



10



BLK
RED
DATA



BLK/RED
2
DATA
SIG
I



17



WHT/RED



WHT/RED



3
I
X13254



GRN/RED



4
DATASIG
I
1



BLK/RED



BLK/RED



5
OPEN
SIG
I



2



BLK/YEL



BLK/YEL



e
OPENSIG
I
3
-/RED
BLKIRED
7
OPEN
SIG
I



4



WHTGRN
WHT/GRN
S
I



WHT/GRN
9
DATASIG(CONV)
I
5



WHT/YEL



WHT/YEL



1
.
CLOSE
BIG
(0
DOOR)
I

DATA
I
7
BLKIGRY
SIG
CLOSE
S
:
.
I



8



BLU/GRN
CLOSE
SIG
I



9



BLU/YEL
CLOSESG

DATASIG(CONV)
I
11



WHT/GRN
OPEN
SIG
(4
DOOR)
i
X13255

8
DYELECTRONICS
CONTROL
MODULE
(2KE
IV)

I
34B
RN
IGRY/YEL



I
I
BRN
I
GRY/YEL
I



h5
BRN/BLU/YEL

ANTI-THEFT
CONTROLMODULE

BRN/GRY/YEL

DRIVER'S
DOOR
JAMB
SWITCH



I



I



WHT
:
WHT
:



GREDI



GRIN
:



GRN
/
I



G
ED

BRN
._EJR-N--
I

BRNIBLU/YEL

G312

PASSENGER'S



BRN
DOOR
JAMB
SWITCH
(EX
CONVERTIBLE)
.203
BRN
O
=-N_
G312
(CONVERTIBLE)

INSTRUMENT
CLUSTER
SYSTEM

BLKIGRYBLU/GRN
BLU/YEL
WHT/YE
L

INTERIORLIGHTS
SYSTEM

DRIVER'S



j

OR'

/~



POWER



POWER
BLU



O



WINDOWo



WINDOW
SWITCH



SWITCH
CHILD



uwZ



u



4



a
PROTECT
ION



pa



u



U



w
CONTROL



PASSENGER'S

~(4DOOR)



-~--

12
1314

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