sensor BMW M3 1998 E36 Workshop Manual

ON-BOARD
COMPUTER

83951

HOT
IN
ACCY,
HOTATALLTIMES



RUNAND
START
FRONT
POWER
r
_____________________
_-_-I

DISTRIBUTION
BOX
I



FUSE



FUSE
I
F31



F46
5A



15A

BRN/FiED
10

2
WHT/VIO

3
WHT/YEL

}
4
WHT/BLK

RED/YEL

7
GRY/YEL

8
BRN/GRY

9
BLK/WHT

10
VIO/YEL

11
GRY/RED

On-Board
Computer

1995-98
318ti

ELECTRICAL
WIRING
DIAGRAMS
ELE-173

Lam___________________

2Y

RED/YELL



VIO/YEL
I

6



BRN/ORG



BRN/ORG
0-'201
(Z3)

G203
(318ti)

1



G302
(Z3)

NCA



-~~RN
"
-BRN

G202
(318ti)

COMBINATION
SWITCH

COMPUTER
DATA
LINES
SYSTEM

10
COMPUTER
DATA
LINES
SYSTEM

10
ENGINE
CONTROLS
SYSTEM
INSTRUMENT
CLUSTER
SYSTEM

INSTRUMENT
CLUSTER
SYSTEM

INTERIORLIGHTS
SYSTEM
BRN/GRY

ON-BOARD
COMPUTER
TEMPERATURE
SENSOR
BRN

(Z3)
G201
!-G203
(318ti)

32Y

ELE-174
ELECTRICAL
WIRING
DIAGRAMS

83490

1
BRN/GAY

2
BLUIRED

8
BLK/GRN

9
GRNIBLU

10
WHT/BLU

11
WHT/RED

12
SRN/GRY

13
BLK/WHT

14
V10/WHT

1
.
GRYIRED
X
10Z0
1
BLK/VIO

2
3
BLK/BLU

4
RN/P
..

5
WHT/VIO

6
WHT/BLK

7
WHT/YEL

WNT/GR

HOT
IN
RUNAND
START



HOT
IN
RUNAND
START



HOTATALLTIMES



HOTATALLTIMES
r



FUSE



FUSE



1
FRO
NT
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ER



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F
_
US
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AUXILIARY



FUSE,
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F23



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6
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ON-BOARD
COMPUTER

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7
.5
.
L~___J

GRNIBLU
I



VIO/WHT

.FN

Z
G203

On-Board
Computer

1992-97
Except
318ti

ALLEXCEPT1997

EXTERIOR
LIGHTS
SYSTEM

EXTERIOR
LIGHTS
SYSTEM

INSTRUMENT
CLUSTER
SYSTEM

STARTINGICHARGING
SYSTEM

WARNING
SYSTEM

WARNING
SYSTEM

INSTRUMENTCLUSTERSYSTEM

INSTRUMENTCLUSTER
SYSTEM

INTERIORLIGHTS
SYSTEM

BODY
COMPUTER
SYSTEM

ON-BOARD
CGMPUTERTEMP
BODY
COMPUTER
SYSTEM



SENSOR

EXTERIOR
LIGHTS
SYSTEM



y
1
BRN'
{t
COMPUTER
DATA
LINES
SYSTEM
I
ENGINE
CONTROLS
SYSTEM



BRN

1
11
,
COMPUTER
DATA
LINES
SYSTEM



GROUND

INSTRUMENT
CLUSTER
SYSTEM

AIR
CONDITIONING
SYSTEM

L



=
5
-
J



L



1
_
5
-
J

1997



1



1994-1996

104489

2
BLU/RED



GRN/BLU
VIO/WHT
RED/YEL

EXTERIOR
LIGHTS
SYSTEM
3
4
5
6



BLUJBRN/YEL



INSTRUMENT
CLUSTER
SYSTEM
7
8



BLK/GRN



STARTING/CHARGING
SYSTEM
9
GRN/BLU

10



WHT/BLU



WARNING
SYSTEM
11
WHT/RED
WARNING
SYSTEM
12
BRN/GRY

13



BLK/WHT



INSTRUMENT
CLUSTER
SYSTEM
14
VIO/WHT

15



BLU/VIO/WHT



INSTRUMENT
CLUSTER
SYSTEM

17

1



GRYJRED



INTERIOR
LIGHTS
SYSTEM

18

X1070

On-Board
Computer

1998Except
318ti

1



BLK/GRN



ANTI-THEFT
SYSTEM
j
2

EXTERIOR
LIGHTS
SYSTEM
5
WHT/VIO
COMPUTER
DATA
LINES
SYSTEM
6
WHT/BLK
ENGINE
CONTROLS
SYSTEM
7
WHT/YEL
10
COMPUTER
DATA
LINES
SYSTEM
RED/YEL

ELECTRICAL
WIRING
DIAGRAMS
ELE-175

HOTINRUN
HOTINRUN
HOTAT
OR
START



OR
START



ALLTIMES
_
FRONT
POWER
DISTRIBUTION
BOX
FUSEFUSE
FUSE
F23



~
F45



~
F31
5A



7.5A
5A
----



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6Y
30Y
2Y

GRN/BLU
i



VIO/WHT
i



RED/YEL

9



WHT/GRY



10
INSTRUMENT
CLUSTER
SYSTEM
10

11

12
13
BRN

14
BLK/WHT/YEL
gIR
15
CONDITIONING
SYSTEM



BRN~''
II

16

ON-BOARD



-



-

COMPUTER
MODULE



G203



G203

ON-BOARD
COMPUTER
TEMPERATURE
SENSOR

I
671-E
L
I



11~V/HT/G
RN
I

-
3



BLKIYEL
CTRL
BIG



4



SLUIRED
,

CTRLSIG
I
5



GRV/RED
END
B
BRN



SPIN
G205

'
X11399
CONVERTIBLETOPDONTRGLMODULE

BODY
ELECTRONICS
CONTROL
MODULE
(ZKEIV)

03584

I
.
SPIN
BLK/BLU

I
-
_
I
w

HARD
OFCONNECTOR1
(IN
CONVERTIBLE
TOP
BR
B~

G~
RN/BLK

REARWINDOWBLOWER
MICRO
SWITCH

9
WHT/BLK
10
WHT/BLU

DEFOGGERSYSTEMBRNI

j
G202

ELECTRICAL
WIRING
DIAGRAMS
ELE-253

Convertible
Top

1994-97

NANDSTART
HOTATA
,
~LLTIMES



HOTACCV,
-
RU
,,
NANDSTART



HOTAT
777
A
IIB
L~~LTIMES



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AT
ALL
TIMES

r/FUSE--___-
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E
-------
FUSE
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FUS



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FU



42E------~F27E
DINT
T
IDRSRBUTIONBOX

7
BLK/RED
B
BLU/GRN
CT
RLSIG
9
GRYIBLKCTRLSIG
12V
10
RED/GRNIYEL
J
X13
15fi

TRUNKLIOSIG
20
21
BRN/WHT

WHT/VELDATASIG
2223
WHT/BLU
ROLL-OV
ER
SIG



-
GRN1VI0
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2425
BRNIORG
GNDPWRSUPPLY
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~
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DATASIG



-
II1
I.

INTERIORLIGHTS
SYSTEM

CONVERTIBLE
TOPMOTOR

BLK/BRN

GRV/RED
4

BRNIORG
1
BRN/ORG
2

BRN/ORG
tSUPPLY
I
YEL/BLU
2
BLK/BLU
PO
STN
SIG
3
BLU/VEL
PO
STN
SIG
4
VEL/BRN
END
LK/GRN
CTRLSIG
POSTNSIG
B6
VEL/GRN
x1
157

TOP
OPEN
BIG



1
2



BLK/BRN

14
WHT/VIO
DATA
SIG
GND
B
BLKIBLU
PWRSUPPLY
6
VIO/WHT
,7
l
REAR
WDO
BLWPSIG



B



GRNIBLK

10
WHT/GRN
DATA
SIG
11
12
GRN/GRY



LEFT
DATASIG



II
ROLLOVER
SPOSIG
1B
ILK
HT



PROTECTION
TOP
CLOSED
BIG



14



BLKIGRN



ACTUATOR

DATASIG
1S16
WHT/VEL
1716
19
WHTIVIO
VIO/GRN
1
GRN/VIO
2
BLK/WHT
3
BLKIBLU
4
GRN/GR
V
5
WHT/VIO
B
BRN/OR
G
7
BLK
I
VIO
10
BLKIGRN
11

BLKIGRN

am

BLK/VIO
BLK/BLU

BLKIWHT

ROLLOVERSENSOR

RIGHT
II
ROLLOVER
PROTECTION
ACTUATOR

BLK/GRN
57



CLOSE
OFF
N-H

CONVERTIBLE
TOP
ACTUATING
SWITCH
BRN/ORG-
f
I

BLK/BLU

BLK/
,
BRNIORRG

CONVERTIBLETOP
POSITION
MICRO
SWITCH

WHTIBLU
~~
BLU

CONVERTIBLE
TOP
END-POSITION
MICRO
SW
ITCH

BLKIRED
BLU
ELK-
.
/EEL
RED
BRN
/ORG
~~



BRN
LOCKED

WHT/BLK
~~
CRY
UNLOCKED

WINDSCREENCOWLPANEL
LOCK
CONVERTIBLE
TOP
STORAGE
MOTOR



MICROSwITCH
(1996-97)

ELE-254
ELECTRICAL
WIRING
DIAGRAMS

CONVERTIBLETOP
CONTROL
MODULE

I
18
W
HT/RED
I



1
X1
3254
I



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1
5
WHT/
YEL
I



17
11
WHTIGRN
I



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X13255
BODYELECTRONICS
CONTROL
MODULE
(ZKE
IV)

II
NCA
BLC
-/BL
U
I



NCA



,
BRN
I
__I
HARDTOP
CONNECTOR
1

REARWINDOW
BLOWER
MICRO
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104867

,2
LOCKCTRL
;

CTRLSIG
4
8-t
.)/RED

TOPOPENSIG
Ir
J2
J3DA
TASIG
GND
PWRSUPPLY
J
7

HOTAT
HOTINRUN,



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HOTINRUN
HOTINRUN,
HOTAT
ALLTIMES
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ALLTIMES
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ALLTIMES
AUXILIARY
F



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FUS
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,



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GND



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1
7



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-
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9
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I
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BLK/BLUBLK/GRN
21
..

.
POSITION
SIG



3



BLU/YEL
GND
4
YEL/BRN
ROLLOVER
SENSOR
BLKIGRN

II
q

RIGHTROLLO
ER
OUATOR
N

POSITION
SIG
l
iS



BLK/GRNCTRLSIG
18



YEL/GRN
157

8LK/BRN
WHT/VIO
BLK/BLU
VIO/WHT

REARBLOWER
18
GRNI.L
K
AL
G312

NN=A
(
BRN/YEL



DEFOGGER
SYSTEM
NCABLKNCA

BRN

Convertible
Top

1998

2
1
281
Xt00
]E



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BIx1oo17
241x190]7141X70012
RED
'
WH1I



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BNKI
GRNIGRNI
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GRN/VIO
23
DATA
LINK
W
~T
CONNECTOR
GqN
[
GRN/
J
VIOLj
_
ROLLOVER
I
ELK



GRN



I



PROTECTION
1
20Y
,BT



I
WARNING
I
I
HT/



WHTlBLU



10



IN
D
1
EL

J
9
DATA
SIG



1_10



WHT/GRN
11J
lz
SPEEDSIG
113
BLK/WHT
TOPCLOSESIG
I14
BLK/GRN

rrr
r

CONVERTIBLE
UNLOCK
LOCK



I
TOPMOTOR
WINOSCREENCOWLPANEL
LOCKMICROSWITCH

"
BLK
K/WHT
2
I



I

CONVERTIBLE
TOP-END
TRUNKLID
POSITION
MICROSWITCH
MICROSWITCH

BLKIVIOBLK/BLU

BLK/WHT

RED/GRN
BRN

LEFT
II
ROLLOVER
PROTECTION
ACTUATOR

CONVERTIBLETOPSTORAGE
LID
LOCK
MOTOR

WARNING

Your
common
sense,
good
judge-

ment,
and
general
alertness
are
cru-

cial
to
safe
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
front
of
the
manual
.
Review
these
warnings
and
cautions
each
time
youprepare
to
work
on
your
BMW
.
Please
also
read
any
warnings
and
cautions
that
accom-

pany
the
procedures
in
the
manual
.

A

ABS
(anti-lock
brakes)

See
Brakes
Accelerator
and
throttle
linkage
See
Maintenance
program
Air
conditioning
general
information
640-1
air
distribution
motor,
replacing
(rotary

knob)
640-10
air
distribution
motors
640-9

blower
motor,
removing/installing

640-1blower
motor
resistor
pack,
replacing
640-3
compressor,
replacing
640-12
compressor
clutch
640-13
condenser,
replacing
640-14
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
evaporator,
removinglinstalling

640-17
evaporator
temperature
sensor,

replacing
640-17

expansion
valve,
removing/installing

640-16
microfilter,
replacing
640-18
receiverldrier,
replacing
640-15
sensor
fan
forinterior
temperature,

replacing
640-9
warnings
and
cautions
640-11

Air
distribution
(flap)
motor

See
Air
conditioning
See
also
Heating
Air
filter
See
Maintenanceprogram

Airbag
system
(SRS)
general
information
721-1

contact
ring,
replacing
721-3

driver
side
airbag,removing/installing

721-5
front
crash
sensor,
replacing
721-4

front
side-impact
airbag,
removing/
installing
721-7

front
side-impact
airbag
crash
sensor,

removing/installing
721-5

passenger
side
airbag,
removing/

installing
721-6
sensors
and
electronics
721-1

SRS
warning
light
and
fault
display

721-2
systems
721-1
ZAE
control
module,
replacing
721-5

Alarm
system
See
Central
locking
and
anti-theft

Alternator
See
Battery,
starter,
alternator

Anti-freeze
(Engine
coolant)

See
Maintenance
program

Anti-theft
See
Central
lockíng
and
anti-theft

AST
(Al¡
season
traction)
300-4

ATF
(Automatic
transmission
fluid)

See
Automatic
transmission

Automatic
transmission

See
alsoTransmission-general
general
information
240-1

ATF,draining
and
filling
240-2

ATF
leve¡,
checking
240-1
transmission
removaland
ínstallation

240-4
transmission,
removinglinstalling
240-4
transmission
service
240-1

Auxiliary
fan
See
Cooling
system
Axle
joint
See
Maintenance
program

B

Back-up
light
switch
See
Manual
transmission
Balljoint
See
Front
suspension
Battery
See
Battery,
starter,
alternator

Battery,
starter,
alternator
See
also
Maintenance
program
general
information
121-1

alternator,
removing/installing
(4-
cylinder
engine)
121-5
alternator,
removinglinstalling
(6-
cylinder
engine)
121-6
alternator
brushes,
inspecting/
replacing
121-7
alternator
service
121-4
batterycharging
121-4
battery
load
voltage
test
121-4

batteryopen-circuit
voltage
test
121-4

battery
service
121-3

INDEX
1

Battery,
starter,
alternator
(cont
.)
battery
testing
121-3
charging
system
quick
check121-2
charging
system
troubleshooting
121-
2
hydrometer
testing
121-3
solenoid
switch,
removinglinstalling
121-10
starter
service
121-7
starter
troubleshooting
121-7
starter,
removing/installing(4-cylinder
engine)
121-8
starter,
removing/installing(6-cylinder

engine
with
automatic
transmission)

121-9
starter,
removing/installing
(6-cylinder
engine
with
manual
transmission)
121-8
static
current
draw,
checking
121-2
voltage
regulator,
removing/installing
121-6
Bearing,
wheel
See
Front
suspension
or
Rear

suspension
Blowermotor
See
Air
conditioning
See
also
Heatíng
BMW
emblem
See
Exterior
trim,
bumpers
Body-general
general
information
400-1

body
assembly
400-1
central
body
electronics
400-4
convertible
models
400-2
coupe
models
400-2
electronic
immobilizatíon
system
400-
4
exterior
and
aerodynamics
400-2

heating
afhdair
conditioning
400-5

instruments
and
controls
400-4
interior
equipment
400-3
seats
and
seatbelts
400-3
Body
side
molding
See
Exterior
trim,
bumpers

Brake
fluid
See
Maintenance
program

Brakes
general
information
340-1
antilock
brake
system
(ABS)
340-11
inspection
340-12
wheelspeed
sensors,
replacing

340-12
bleeding
brakes
340-3
brake
booster,
removinglinstalling
340-8
brake
caliper,
removing/installing

340-6
brake
pads,
calipers,
and
rotors
340-3

brake
pads,
replacing
340-4
brake
rotor,
removing/installing
340-7
master
cylinder,
removing/installing

340-7
parking
brake
340-10
adjusting
340-10
.
cable,
replacing
340-11
shoes,
removinglinstalling
340-11

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

4
INDEX

Evaporator
See
Air
conditioning
EWS
(Electronic
immobilization
system)
515-8
Exhaust
system
See
also
Maintenance
program
general
information
180-1
exhaust
manifolds,
removingAnstalling
180-5
exhaustsystem,
removing/installing
180-3
Expansion
valve
See
Air
conditioning
Exterior
lighting
general
information
630-1
center
brake
light
housing,
replacing
(4-door
and
coupe
models)
630-5
foglight
assembly,
removing/installing
630-3
front
turn
signal
assembly,
removing/
installing
630-4
headlight
assembly,removing/
installing
630-2
headlight
bulb,
replacing
630-1
license
plate
light,
removing/installing
630-6
side
marker
lights
630-4
taillight
assembly,
removing/installing
630-5
taillight
bulbs,
replacing
630-4
Exterior
trim,
bumpers
general
information
510-1
BMW
embiem,
removing/installing
510-7
body
side
molding,
replacing
-7
bumper
height,
adjusting
510-6
front
bumper,
removing/installing
510-3
front
bumper
impact
absorber,
replacing
510-4
front
panel,
removing/installing
510-7
outside
rear
view
mirrors
510-1
mirror
housing,
removing/installing
510-1
mírror,
removing/installing
510-2
mirror
glass,
replacing
510-1
radiator
grille,
removing/installing
510-7
rear
bumper,
removingfinstalling
510-
4
rear
bumper
impact
absorber,
replacing
510-4
F

Fenders,
engine
hood
general
information
410-1
front
fenders
410-1
front
fender,
removing/installing
410-1
hood
aligning
410-4
hood,
raising
to
service
position
410-2
hood
release
cable
and
latches,
adjusting
410-4
hood,
removing/installing
410-3

Finaldrive
general
information
331-1
final
drive
se
rvice
331-1
flange
oil
sea¡,
replacing
331-2
inputshaft
oil
sea¡,
replacing
331-3
oil,
draining/filling
331-1
oil
seals331-1
removing/installing
331-3
Final
drive
carrier
See
Rear
suspension
Firing
order
See
Ignition
system
Flexdisc
See
DriveshaftFluids
and
lubricants
See
Maintenance
program
Foglight
See
Exterior
lighting
Front
suspension
general
information
310-1
ball
joint
See
outer
control
arm
ball
joint
control
arm,
removing/installing
310-5
control
arm
bushing,
replacing
310-7
control
arms
310-5
front
wheel
bearing,
replacing
310-8
front
wheel
bearings
310-8
outer
control
arm
ball
joint,
replacing
(except
M3)310-6
ride
height
310-4shock
absorbers
and
springs
310-2
stabilizer
bar
310-9
stabilizer
bar,
removing/installing
310-9
strut
assembly,disassembling/
assembling310-4
strut
assembly,
removing/installing
310-2subframe
crossmember
310-9subframe
crossmember,
removing/
installing
310-9
Fuel
injection
general
information
130-2
basic
engine
settings
130-2
principies
of
operatínn
130-2
Bosch
DME
Ml
.7
component
tests
and
repairs
130-14
air
floiv
sensor,testing/replacing
130-14
engine
coolant
temperature
(ECT)
sensor,
testing/replacing
130-15
¡dle
speed
control
valve,
testing/
replacing
130-16
throttle
position
sensor
(TPS),
testing/replacing
130-16
Bosch
DME
M3
.1
and
M3
.3
.1
component
tests
and
repairs
130-17
engine
coolant
temperature
(ECT)
sensor,
testing/replacing
130-18
¡dle
speed
control
valve,
replacing
130-21
¡dle
speed
control
valve,
testing
130-
20
intake
air
temperature
(IAT)
sensor,
testing/replacing
130-19
mass
air
flow
sensor130-17

Bosch
DME
M3
.1
and
M3
.3.1
(cont)
mass
air
flow
sensor
(hot
film)

testing/replacing
130-18
mass
air
flow
sensor
(hot
wire)
testing/replacing
130-17
throttle
position
sensor
(TPS),
testing/replacing
130-19
Bosch
DME
M5
.2
component
replacement
130-21engine
coolant
temperature
(ECT)
sensor,
replacing
130-22
ldle
speed
control
valve,
replacing
130-23
intake
air
temperature
(IAT)
sensor,
replacing
130-22
mass
air
flow
sensor,
replacing
130-
22
throttle
position
sensor
(TPS),
replacing
130-22
DISA
(dual
resonance
intake
system)
130-3
ECM
pin
assignments130-26
electrical
checks
andcomponent
testing
130-7engine
control
module(ECM),

accessing
130-26
fuel
delivery
tests
130-9
fuel
pressure
regulator
response
to
engine
load,
testing
130-11
fuel
pressure
regulator
130-13
fuel
pressure
regulator,
replacing
(fuel
rail
mount)130-13
fuel
pressure
regulator,
replacing
(under
car
mount)130-14
fuel
pump
relay,
testing
130-7
fuel
rail
and
injectors,
checking
130-11
fuel
rail
and
injectors,
replacing
130-
12
fuel
delivery
tests
(cont
.)
operatíng
fuel
pump
for
tests
130-9
relieving
fuel
pressure
and
connecting
fuel
pressure
gauge
130-10
residual
fuel
pressure,
testing
130-10
main
relay,
testing
130-7on-board
diagnostics
(OBD)
and
fault
diagnosis
130-4
oxygen
sensor,
testing
(Bosch
systems
only)
130-8
secondary
air
injection
130-5
Siemens
MS
41
.1
component
replacement
130-23
engine
coolant
temperature
(ECT)
sensor,
replacing
130-25
¡dle
speed
control
valve,
replacing
130-26
lntake
air
temperature
(IAT)
sensor,
replacing
130-25
mass
air
flow
sensor,
replacing
130-
25
throttle
position
sensor
(TPS),
replacing
130-26warnings
and
cautions
130-6
Fuel
filter
See
Maintenance
program

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