123 BMW M3 1995 E36 Workshop Manual

NOTE-

"
On
carswith
OBD
ti,
specialized
OBD
11
scan
tool
equipment
must
be
used
to
access
the
DTCs,
either
using
the
BMW
special
tool
ora
`generic"
OBD
11
scan
tool
.
See
130
Fuel
Injection
.

"
The
08D
11
fault
memory
(including
an
iiluminated
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
.

Table
d
.
OBD
1
Fault
(Blink)
Codes

(1992-1995
modeis
only)

Graphic
representation
of
flashing
Check
Engine
light
fault
code
:
1221
5
Seconds
.
:-



2
.5~-

--05--

Fault
code
and
meaning



1
Corrective
action

Code
1216
:
Throttle
potentiometer

Code
1218
:
Output
stage,
group#1
(DME
3
.3
.ionly)

Code
1219
:
Output
stage,
group
#2
(DME
3
.3.1
only)

Code
1221
:
Oxygen
sensor
#1

Code
1224
:
Air
temperature
sensor
(NTC)

Code
1226
:
Knock
sensor
#2
(DME
3
.3
.1
only)

130

ENGINE-GENERAL
100-
9

2
.5
seconds,
then
go
off
for
2
.5
seconds
.
At
thispoint,
the
fault
codes
will
begin
to
flash
.
See
Table
d
.

If
more
than
one
fault
has
been
detected,
eachcode
will
be
separated
by
a2
.5
second
pause
.
When
al¡
fault
codes
havebeen
displayed,
there
will
be0
.5
second
flash
and
thenthe
light
will
remain
off
.
To
read
the
codes
again,
turn
the
key
off
and
then
on
again
.
Depress
theaccelerator
pedal
to
the
floor
five
times
quickly
(within
5
seconds)
.
The
codes
will
begin
to
repeat
.

On
cars
with
OBD
I,
fault
codes
can
be
read
by
turning
the



To
erase
the
fault
code
memory,
first
make
sure
the
fault

ignition
key
on
and
fully
depressing
theaccelerator
pedal
to



code
1000
(short
blink
and
then
light
goes
out
for
long
period)

the
floor
five
times
within
five
seconds
.
TheCheck
Engine



is
present,
then
depress
the
throttle
fully
for
at
least
10
sec-

light
will
then
remain
on
for
five
seconds,
blink
off,
come
on
for



onds
.
Read
the
fault
codes
as
described
earlier
and
check
for
the
1444
code
(no
faults
stored)
.

-,--------------
Check
Engine
light
on

Check
Engine
light
off

Code
1211
:
DM
E
Control
Module



DME
control
module
may
be
faulty
.
This
code
appears
if
the
control
module
fails
the
self
test
.
Check
inputsto
control
module
.
Repair
Group
130

Code
1215
:
Mass
air
flow
sensor



Check
air
flow
or
mass
air
flow
sensor
and
wiring
to
sensor
.
Repair
Group
130

Test
throttle
potentiometer
resistance
and
wiring
.
Repair
Group
130

Test
DME
control
module
input/outputs
.
Repair
Group
130

Test
DME
control
module
input/outputs
.
Repair
Group
130

Check
sensor
output
signal
to
DME
control
module
.
Repair
Group

Code
1222
:
Oxygen
sensor
lean/rich
control
stop



Check
for
intake
air
leaks
or
reasons
forrich
míxture
.
See
Driveabil-
ity
Troubleshooting
given
earlier
in
this
repair
group

Code
1223
:
Coolant
temperaturesensor
(NTC)



1
Test
coolant
temperature
sensor
.
Repair
Group
130

Test
intake
air
temperature
sensor
.
Repair
Group
130

Code
1225
:
Knock
sensor#1
(DME
3
.3
.1
only)



1
Check
knocksensorand
sensor
wiring
.
Repair
Group
120

Check
knocksensor
and
sensor
wiring
.
Repair
Group
120

Code
1231
:
Batteryvoltage
monitor



Test
battery
voltage
and
battery
check
charging
system
and
starter
.
Repair
Group
121

Code
1234
:
Speedometer
"A"signal
(DME
3
.3
.1
only)



Check
wiring
between
instrument
cluster
and
DME
control
module
.
Electrical
Wiring
Diagrams

Code
1237
:
A/C
compressor
cutoff
(DME
3
.3
.1
only)



Test
DME
control
module
inputs/outputs
from
A/C
system
.
Repair
Group
130

Code
1242
:
A/C
compressor
signal
(DME
3
.3.1
only)



Test
DME
control
module
inputs/outputs
from
A/C
system
.
Repair
Group
130

DRIVEABILITY
TROLIBLESHOOTING

117-
8



CAMSHAFT
TIMING
CHAIN

Fig
.
18
.
Oil
baffle'
cover
being
removed
.

Fig
.
19
.
Upper
timing
chaincover
mounting
nuts
(arrows)
on
pre-
VANOS
engines
.

16
.
Secure
crankshaft
hub
to
prevent
crankshaft
from
turn-
ing
.
Using
a
socket,
loosen
but
do
not
remove
crank-
shaft
hub
center
bolt
.

CAMSHAFT
TIMINGCHAINS,
6-CYLINDER

Fig
.
20
.
Engine
set
to
approximate
TDC
.
Camshaft
lobes
face
in
and
arrows
on
sprockets
point
up
(arrows)
.

B1
1123a

Fig
.
21
.
O/
T
(0°TDC)
mark
on
vibration
damper
aligned
with
boss
on
timing
chain
cover
(arrow)
.

17
.
Lock
crankshaft
in
TDC
position
by
inserting
BMW
spe-

cial
tool
no
.
11
2
300
through
transmissionbellhousing
and
into
hole
in
flywheelor
drive
plate
.
See
Fig
.
23
.

NOTE-

Confirm
that
the
locking
tool
has
been
correctly
in-
stalled
by
trying
to
rotate
the
crankshaft
.
NOTE-

The
crankshaft
hub
center
bolt
is
tightened
to
a
torque



18
.
Remove
crankshaft
hub
bolt
and
washer
.
Remove
hub
of
410
Nm
(300
ft-ib)
.
A
heavy
duty
holding
device,



from
crankshaft
.
suchas
BMW
special
tool
no
.
112150,
should
be
used
to
hold
the
crankshaft
hub
stationary
while
the
bolt
is



19
.
Remove
cylinder
head
cover
mounting
studs
at
rear
of
loosened
.
Use
a
heavy
duty
314-inch
drive
socket
and



head
.
Lock
camshafts
at
TDC
using
BMW
special
tool
breaker
bar
to
break
the
bolt
free
.



no
.
11
3
240
at
ends
of
camshafts
.
See
Fig
.
24
.
.

610-14



ELECTRICAL
COMPONENT
LOCATIONS

Component



Model
Year



Location



Refer
to

G
102



1992-1998



Left
front
strut
tower

G
103



1992-1998



Right
front
strut
tower

G
110



1992-1998



Left
front
of
engine

G
111



1992-1998



Near
battery

G
117



1992-1998



Right
rearof
engine

G
119



1992-
1998



Right
front
of
engine

G
123



1992-1998



Right
side
of
safety
wall

G
200



1992-1998



Left
kick
panel

G
201



1992-1998



Right
side
ofI/P

G
202



1992-1998



Left
side
ofI/P

G
203



1992-1998



Right
kick
panel

G
230



1992-1998



Right
kick
panel

G
301



1992-1998



Below
rightfront
seat

G
302



1992-1998



Below
center
console

G
303



1992-1998



Below
right
rear
seat

G
310



1992-1998



Behind
right
rear
seat

G
312



1992-1998



Behind
left
rear
seat

G
313



1992-1998



Right
side
of
rear
shelf

G
314



1992-1998



Left
side
of
rear
shelf

G
400



1992-1998



Left
front
side
of
trunk

G
404



1992-1998



Left
rearside
of
trunk

Camshaft
Position
Sensor



1992-1998



Front
of
engine



Fig
.
7
.

Hard
Top,
Connector
1



1994-1998



In
convertible
top
compartment
left
side

Hard
Top,
Connector
II



1994-1998



In
convertible
top
compartment
left
side

Hazard
Flasher
Relay



1992-1998



Power
distribution
box



Fig
.
2
.

Headlight
High
Beam
Relay



1998



Left
hand
side
of
dash
behind
instrument
cluster

Headlight
High
Beam
Relay



1992-1997



Power
distribution
box

Headlight
Low
Beam
Relay



1992-1998



Power
distribution
box

Heat
ExchangerTemperature



1993-1998



Center
console
Sensors
(left
and
right)

HeaterBlower
Motor



1992-1998



Behind
fresh
air
cowl
HeaterBlower
Motor
Relay



1992-1998



Power
distribution
box



Fig
.
2
.

Heat
Rear
Recirculation
Flap



1997-1998



Right
sideof
heater
box
Actuator

COMPONENTLOCATIONS

Tablea
.
E36
Component
Locations

Continued

U

64853

F
IGNITION



IGNITION



ENGINE



IGNITION



IGNITION



CAMSHAFT
l
COIL



COILS



I
CONTROL



I



I
COIL2



I



I
COIL4
SHIELD



I



_



SHIELD



I



(
MODULE



I



I



I



POSITION
SENSOR
j



I



-



_j
(DME)



I



-I



I



-I



SHIELD
HALL
I
EFFECT
I
(CAMSHAFT
I



-I
SENSOR

NCA

ELECTRICAL
WIRING
DIAGRAMS
ELE-37

Ground
Distribution

1992-93
(3
of
5)

IGNITION



F_==a
IGNITION
COIL2
I
COIL4



IGNITION



IGNITION



SENSOR
_



CAMSHAFT
_



SHIELD



_



SHIELD



I



(
COIL?



I



(
COILS



SHIELD

I
_I

j



S:
CAMSHAFT
POSITI

POSITION

I



I
HEATED



I
----
I
TRANSMISSION
OXYGEN



CONTROL
I



I
SENSOR



I



I
MODULE
I



I



I



I
(EGS)

HEATED
(OXYGEN
SENSOR
SHIELD

DATA
LINK
CONNECTOR

1993
ONLY

1993



I



m
I
ONLY



m

I



(
PUMP



I



(
HYDRAULIC



I



(
PUMP
I



(
MOTOR



I



(
UNIT



I



(
MOTOR
I



_
I
RELAY



I
-I



I
---I
RELAY

21
_
CAMSHAFT

ONLY

Q
Q
==
CAMSHAFT
POSITION



ENGINE
(SENSOR



I
(CONTROL_
_
SHIELD



I



(
MODULE
I



_
I
(DME)

BRNIO

28

HEATED



r



ENGINE
1



I



I



F=_
:
OXYG
a
CRANKSHAFT



CAMSHAFT
G123



I



(
SENSOR



(
POSITION/



I



POSITION



'



(
CONTROL
_



RPM



_



SENSOR



I



I
MODULE
(318SERIES)



I



I



~~
SENSOR



,~SHIELD



I
SHIELD

I

mI



IGNITION
CRANKSHAFT



CAMSHAFT



COIL
POSITION



SHIELD
I
POSITION/
RPM



I
SENSOR



__
_



__



_F



_j
SENSOR



-~SHIELD
I
HEATED



SHIELD
OXYGEN



__



199
:
__~_



NC
SENSOR



ONLY
SHIELD

'~
DATA



HOT



--



TRANSMISSION
LINK



I



I
FILM



I



I
CONTROL
CONNECTOR



I
(AIR



I
(MODULE
I



I
M
MASS



I



-I
(EGS)
ETER
361
19

_
NCANCA

BRNIORG

=Y=1

(325
SERIES)

ELE-42
ELECTRICAL
WIRING
DIAGRAMS

BC321

IGNITION



HEATED
__
COILS



HEATED



OXYGEN



ENGINE
(
SHIELD



I
IOXVGEN



II
SENBOR
I
(
CONTROL
I



(SENSOR



-~
SHIELD



I



(
MODULE
I



¢~



I



_I
(DME)

CONTROL



HEATED
I



(MODULE



I
(OXYGEN
I
_-J(OME)



ISENSOR2

0-0

G103
(M3CANADA)

IGNITION



CRANKSHAFT
I
COILS



I



I
POSITIONIRPM
SHIELD



k=__SENSOR
-
SHIELD

I
ENGINE
I-



CONTROL
I



I
MODULE
SRN

IL
1
G123
(3251)

ENGINE
I
(CONTROL
I
(MODULE
I



_
I
(DME)

BRNIORG
BRN/ORG
BRN

3

G119
(3201
.
3251
.
M3
CANADA)

Ground
Distribution

1994-95
Except
318ti
(3
of
5)

HEATED
(OXYGENSENSOR,--
SHIELD

F



_~
HEATED
(OXYGEN
NCA~
_
_~
SENSOR
--
SHIELD

---
I
VARIABLE
CAMSHAFT(CONTROL
I



I
MODULE
----
(VANOS)

CRANKSHAFT

CRANKSHAFT
POSITION/RPM
SENSOR
---~
SHIELD

CAMSHAFT
POSITION



I



I
AIR
PUMP

CAMSHAFT
POSITION/RPM



I



POSITION_



_



I



I
HOT
__
SENSOR



_
SENSOR



FILM
-~SHIELD



-~
SHIELD_



I



I
AIR
M<



I



I
MASS
z
-



--
ETER
m

SENSOR
1
SHIELD

SENSOR
1
SHIELD

-
SENSOR



METER
I



(DME)



_~
SHIELD
19
3y



1Y
__



I
-
I



I

BT
_



I
_

<
557
By
347
287



T



oI

RESISTOR
BRN/I
ORG

_
SENSOR
---~
SHIELD
I



II
v
I

I
(CHANGE-
I



I
19
OVER
I



I
VALVE
_I



m
F---D,SENSOR2
I
(VARIABLE
I
(VARIABLESHIELD
CAMSHAFT
CAMSHAFTS
I



I
(CONTROL
I
(CONTROL
I
-
ISENSORI
I
-
I3ENSOR2

SENSOR2
I
SHIELD

1
GROUND

HEATED



TRANSMISSION
HOT



HALL
I
(
OXYGEN
I



(CONTROL_



I
(
FILM
I(
EFFECT
CRANKSHAFT
I;
SENSOR
I
(MODULE
I
(AIR
I
(CAMSHAFT
POSITION/RPM
I
(EGS)I
MASS



I



I
SENSOR
._

II
(SHIELD

I



FUEL
PUMPf
START
I



I
IDENTIFICATION
I
v
I
RELAY

197
L
DAN
TA
K
I
oICONNECTOR

DATA
LINK
CONNECTOR

I
CYL1



(



ICYL3



I



CYL5



I



(ENGINE



I



(CRUISE



I



(INSTRUMENT



I



(
WIPER/



I



BODY
IGNITION



IGNITION



IGNITION



ONTROL
CONTROL



CLUSTER



WASHER



ELECTRONICS
I



;
COIL



I



(
COIL



I



(
COIL



I



IC
MODULE



I



(
MODULE



I



I



I



(
MODULE



I



(
CONTROL
I



_I



I



_I



I



_I



I



-
I
(DME)



I



_
I



(CANADA)



MODULE

2



2



2



1565



17



26



25



B
CYL2



CYL4



CYLS



U



o
I



(
IGNITION



m



I



(
IGNITION



z



I



(
IGNITION
I



(
COIL



I



(
COIL



I



(
COIL



CRASH



WIPER/



ON
-BOARD
I



I



I



I



I



I
CONTROL
rt



WASHER
O



COMPUTER
I



I



I



I



I



I



I



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I



(
MODULE



I



(TEMP

2T2Y



.
.



F_
_



I



-I



I



_
I
(



I)



I



-
I
SENSOR
2
Y



USA)



-
,

8907
1

I
(ENGINE
CONTROL
I
(MODULE
I



-
I
(ONE)

84
NCA

I
F-_
_
)1
I
IGNITIONCOIL
SHIELD

u

CONTROL



HEATED
I



(MODULE



I
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I



-
I(DME)_



ISENSOR2
55
fi
34



I

~BR~N
BR=
m
I



B~



RN/OPG
G103
(1996)
(M3
CANADA)

I
OXYGEN
(HEATED



ENGINE
I
(CONTROL_



HEATED
I
(SENSOR



I
(MODULE
I
(OXYGEN

I



IGNITION



I



I
IGNITION
¢



I



I
IGNITION
COIL



I



i
COD
.



I



I
COIL
I
_~



I
_I



I
_I

1
G,19
(328,
M3)

RESISTOR

Ground
Distribution

1996-97
Except
318ti
(3
of
5)

(



-
I
(DIVE)



SENSOR
SHIELD
28

I



(VARIABLE



SENSOR(



I



(VARIABLE



SENSOR2



FUEL
PUMP/
CONTROL
(SHIELD
CAMSHAFT



I
(START
C
I



I



I



(
CONTROL



SHIELD_



I



(
IDENTIFICATION
I
_
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ISENSOR2



_
(RELAY

1
II
I5
SENSOR2
I
(HOT
_-~
SENSOR1



FILMSHIELD



I



(
VARIABLE



I



-(
SHIELD



I



(
AIR
CAMSHAFT
DATA
INK
I



(CONTROL
<1-_-~



I



(MASS
I



ml
CONNECTOR
(VANCE)



19

CVL1



CVL3



CVLE



ENGINE
(



IGNITION



I



(
IGNITION



I



(
IGNITION



i



(
CONTROL
I



(
COIL



I



(
COIL



I



(
COIL



I



(
MODULE
I
_I



I
_I



I
_I



I
_I
(DME)

ELECTRICAL
WIRING
DIAGRAMS
ELE=47

F---
HEATED



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I



I
OXYGEN



I



I
POSITION
SENSOR2
SENSOR--
SHIELD



--
SHIELD
mI



I
-
-
------------
-
-
-

4/
32/34/



341
26

j
.123
(328,M3)

_-~CAMSHAFT



I



ICHANGE
I



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F---~
CRANKSHAFT
(
POSITION_



I



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VALVE



I



(



POSITION/PPM
_
SENSOR



__
SENSOR
--~
SHIELD



SHIELD

IGNITION



TRANSMISSION
HOT
(
COIL



I



(
CONTROL



I



(
FILM
__
SHIELD
_



I



(
MODULE



I



(
AIR
_I(EGS)



I
(MASS
---



_
METER
ENGINE
3428
M



I



I
ENGINE
r



-I
(
ECONTROL



O



CONTROL
I



(ODULE

ml
¢O
I
(ODULE



DATA
M
I



-
j
(DIVE)



I



-
I
(DIVE)



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LINK
CONNECTOR
Y
YY



.
.

G123
(1996)(328
CANADA)
BRN/ORG

O

IGNITION



DELAY



SECONDARY



ENGINE



TRANSMISSION



HOT
COIL



I



(
RELAY



I



I
AIR
PUMP



F



(
CONTROL



I



(
CONTROL



I



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