E36 m3 BMW M3 1993 E36 Manual PDF

610-30



ELECTRICAL
COMPONENT
LOCATIONS

Fuses
31-46

v

--------------

15A
I
Horn
Fuses21-30

Fuses
1-20

Fuse
positions
1-46
in
front
power
distribution
box

Tableg
.
1997-1998
E36
Fuse
Positions

fuse



Rating



Protected
Circuit

1



I



30A
I



Power
sunroof

4
1



15A
1
Heated
seats
(see
also
fuse
23)

5
1



30A
1
Power
seats
(see
also
fuse
40)

10



30A



ABS
(see
also
fuse
21,27,38,
46)
AST
(see
alsofuse21,27,
38,
46)

13
I



5A
I
Not
used

FUSE
POSITION
TABLES

0013034

2
I



5A



Engine
controls
DME
M5
.2
(see
also
fuses
16,18,
39,
46)

30A



Wiper/washer
module
(seealso
fuse
36,37,44)

20A
~
Rear
window
defogger/blower
(see
also
f
use23,43)
Antenna
(see
also
fuse
23)

5A
~
Central
locking
(seealso
fuse
28,31,35,
45)
Convertible
roof
(see
also
fuse
24,
27,42,
43,49)
9
1



20A
1
Sound
system
(see
also
fuse
33,43,
44)

11



7
.5A



Headlights/foglights
(see
also
fuse
12,15,
23,
25,29,
30)
On-Board
Computer
(see
also
fuse
12,23,
26,
27,31,33,
37,45,
46)

12



7
.5A



Headlights/foglights
(see
also
fuse
11,15,
23,
25,29,
30)
On-Board
Computer
(see
also
f
use
11,23,
26,27,
31,33,
37,45,
46)

14
I



30A
~
Central
body
electronics
(ZKE
IV)
(see
also
fuse
33,
35,43)
Power
windows
(seealso
f
use
19)

15



15A



Headlights/foglights
(see
alsofuse
11,
12,23,25,
29,
30)

Tableg
.
1997-1998
E36
Fuse
Positions

fuse



1
Rating



1
Protected
Circuit

16



5A



Engíne
control
DME
M5
.2
(see
alsofuse
2,
18,39,
46)
Engine
control
DME
MS
41
.1
(see
also
fuse
18,39,46,
50)
Heating
andA/C
(IHKR
E36)
(see
also
fuse
20,
23,31,39,41,
48)

17
I



10A
1
Not
used

18



15A



Engine
control
DME
M5
.2
(seealso
fuse
2,
16,39,
46)
Engine
control
MS
41.1(seealso
fuse
16,
39,
46,50)

19
1



30A
j
Power
windows
(seealsofuse
14

20



30A



Blowermotor
Heating
andA/C
(IHKR
E36)
(see
also
fuse
16,
23,
31,37,39,
48)
Park
ventilation

21



5A



ABS
(seealso
f
use
10,
27,38,
46)
AST
(see
also
fuse
10,27,38,
46)

22



5A



Instrument
illumination
(see
also
f
use
25,
33,
37)

23



5A



Antenna
(see
also
fuse
6)
Headlights/foglights
(see
also
fuse
11,
12,
15,
25,
29,
30)
Heated
seats
(see
also
fuse
4)
Heating
andA/C
(IHKR
E36)(see
also
fuse
16,
20,
31,39,41,
48)
Instrument
cluster
(seealso
f
use
27,
31,45,
46)
Multi-function
clock
(seealsofuse
26,27,31,
45,46)
On-Board
Computer
(see
also
fuse
11,12,27,
31,
33,37,45,
46)
On-Board
Display
(seealsofuse
26,27,
31,
45,46)
Rear
window
defogger/blower
(see
also
f
use6,43)Turn
signals/hazard
lights
(seealsofuse
34)

24



10A
~
Convertible
roof
(see
also
f
use
7,
27,42,43,
49)
Power
mirrors

25



5A



Headlights/foglights
(seealso
fuse
11,12,
15,23,
29,30)
Instrument
illumination
(seealso
fuse
22,33,
37)

26



10A



Back-up
lights
Electronic
transmission
control
(A4S
310R/Z)
(see
also
f
use
28,
46)
Electronic
transmission
control
(A5S
310Z)
(see
also
fuses
28,46)
Multi-function
clock
(see
also
fuse
23,
27,
31,
45,46)
On-Board
Computer
(see
alsofuse
11,
12,
23,
27,31,33,37,45,
46)

Table
g
.
1997-1998
E36
Fuse
Positions



Table
g
.
1997-1998
E36
Fuse
Positions

fuse



1
Rating



1
Protected
Circuit

27



5A



Airbag
(SRS)
(seealsofuse
42)
ABS
(see
also
fuse
10,21,38,
46)
AST
(see
alsofuse
10,
21,
38,
46)
Convertible
roof
(see
also
fuses
7,
24,
42,
43,49)
Instrument
cluster
(see
alsofuse
23,31,
45,46)
Multi-function
clock
(see
also
fuse
23,
26,
31,
45,46)
On-Board
Computer
(see
alsofuse
11,12,23,26,31,33,37,45,
46)
On-Board
Display
(see
also
f
use
23,27,
31,
45,46)

28



5A



Central
locking
(see
also
fuse
7,
31,35,
45)Cruise
control
(see
also
fuse
46)
Electronic
transmission
control
(A4S
310R/Z)
(seealso
f
use
26,
46)
Electronic
transmission
control
(A5S
310Z)
(seealso
(uses
26,
46)
Driveaway
protection
(EWS
II)
(see
also
fuse
31,45)
Starting
system
(seealsofuse
31,
45)

29



7
.5A



Headlights/foglights
(seealsofuse
11,
12,15,23,
25,
30)

30



7
.5A



Headlights/foglights
(seealsofuse
11,
12,15,
17,
23,25,
29)

31



5A



Central
locking
(seealsofuse
7,
28,
35,
45)
Driveaway
protection
(EWS
II)
(see
also
fuse
28,45)
Heating
andA/C
(IHKR
E36)(see
also
fuse
16,20,23,39,41,
48)
Instrument
cluster
(see
alsofuse
23,
27,45,
46)
Multi-function
clock
(see
alsofuse
23,26,27,
45,46)
On-BoardComputer
(seealsofuse
11,12,23,26,27,33,37,
45,46)
On-Board
Display
(seealso
f
use
23,
26,
27,31,45,46)
Starting
system
(see
also
fuses
28,
45)

32



30A



Cassette
compartment
(seealso
f
uses
33,
37,44)Charging
socket
(see
also
fuses
33,37,
44)
Cigar
lighter/ashtray
lights
(seealso
f
uses
33,37,44)
Glove
compartment
light
(see
also
fuses
33,
37,44)

ELECTRICAL
COMPONENT
LOCATIONS



610-31

fuse



1
Rating



1
Protected
Circuit

33



10A



Ashtray
light
(seealso
fuses32,
37,
44)
Cassette
compartment
(seealso
fuses
32,
37,44)
Cellular
phone
(seealso
fuse
43)
Central
body
electronics
(ZKE
IV)
(seealsofuse
14,
35,
43)
Charging
socket
(seealso
fuses
32,
37,44)
Cigar
lighter
(seealso
fuses
32,37,44)
Instrument
illumination
(see
also
fuse
22,
25,37)
Interior
¡ights
(seealso
fuse
43)
Glove
compartment
light
(see
also
fuse
32,
37,44)
License
plate/luggage
compartment
lights
(see
also
fuse
37)
Luggage
compartment
light
(seealso
f
use
37)
On-BoardComputer
(see
also
f
use
11,12,
23,26,
27,
31,37,45,
46)
Park/taillights
(seealsofuse
37)
Sound
system
(seealso
fuses
9,
43,44)

34



15A



Crash
control
module
Turn
signals/hazard
lights
(see
alsofuse
23)

35



25A
~
Central
body
electronics
(ZKE
IV)
(see
also
fuse
14,
33,
43)
Central
locking
(see
also
f
use
7,
28,
31,45)

36



30A



Headlight
washers
(see
also
fuses
3,
37)
Wiper/washer
(seealsofuse
3,
37,
44)

37



10A



Ashtray
light
(see
also
(uses
32,33,
44)
Cassette
compartment
light
(seealso
fuses
32,
33,
44)
Charging
socket
(see
also
fuses
32,
33,44)
Cigar
lighter
(see
also
f
uses
32,33,
44)
Glove
compartment
light
(see
also
fuses
32,
33,44)
License
plate/luggage
compartment
lights
(seealso
f
use
33)
Instrument
illumination
(seealso
fuses
22,
25,33)
On-Board
Computer
(seealsofuse
11,12,23,
26,
27,31,33,
45,
46)
Park/taillights
(see
alsofuse
33)
Wiper
washer
module
(see
also
f
uses
3,
36,
44)

38



30A



ABS
(seealsofuse
10,
21,
27,
46)
AST
(see
also
fuse
10,21,27,
46)

39



7
.5A



Engine
control
DME
M5
.2
(see
also
fuse
16,18,
46)
Engine
control
DME
MS
41
.1
(seealso
fuses
16,18,46,
50)
Heating
andA/C
(IHKR
E36)
(see
alsofuse
12,20,23,31,
41,48)

40



30A



Power
seats
(seealsofuse
5)

41



30A
~
Heating
andA/C
(IHKR
E36)
(see
alsofuse
16,20,23,
31,
39,
48)
Radiator
auxiliary
fan

42



7
.5A



Airbag
(SRS)
(seealsofuse
27)
Convertible
roof
(seealso
f
use
7,
24,27,43,
49)
Rol¡-over
protection
(seealso
f
use
43)

FOSE
POSITION
TABLES

610-32



ELECTRICAL
COMPONENT
LOCATIONS

Tableg
.
1997-1998
E36
Fuse
Positions

fuse



Rating



Protected
Circult

43



5A



Anti-theft
system
(Alpine)
(see
also
f
use47)
Cellular
phone
(seealso
fuse
33)
Central
body
electronics
(ZKE
IV)
(see
alsofuse
14,
33,35)
Convertible
roof
(seealso
fuse
7,
24,
27,
42,49)
Interiorlights
(also
see
fuse
33)
Rear
window
defogger/blower
(see
alsofuse
6,23)
Roll-over
protection
(see
also
fuse
42)
Sound
system
(seealso
fuses
9,
33,
44)

44



15A



Ashtray
light
(seealso
f
uses
32,
33,
37)
Cassette
compartment
light
(seealso
fuses
32,33,
37)
Charging
socket
(seealso
fuses
32,33,
37)
Cigar
lighter
(seealso
fuses
32,33,
37)
Glove
compartment
light
(seealso
f
uses
32,
33,37)
Sound
system
(seealsofuse
9,
33,
43)
Wiper/washer
(seealsofuse
3,
36,
37)

45



7
.5A



Central
locking
(see
also
fuses
7,
28,31,
35)
Drive-away
protection
(EWS
II)
(see
alsofuse
28,
29,31)
Instrument
cluster
(see
also
f
uses
23,27,31,
46)
Multi-function
clock
(see
also
f
use
23,26,27,
31,46)
On-Board
Computer
(see
alsofuse
11,
12,23,
26,27,
31,33,37,
46)
On-Board
Display
(seealsofuse
23,27,31,
46)
Starting
system
(seealso
fuses
28,31)

46



15A



ABS
(see
also
fuse
10,21,27,
38)
AST
(seealsofuse
10,
21,27,
38)
Brake
lights
Cruise
control
(see
also
fuse
28)
Electronic
transmission
control
(A4S
310R)
(see
also
fuse
26,
28)
Electronic
transmission
control
(A5S
310Z)
(see
also
f
use
26,28)
Engine
control
DME
M5
.2
(see
also
fuses
2,
16,18,
39)
Engine
control
DME
MS
41
.1
(seealso
fuses
16,18,39,
50)
Instrument
cluster
(see
also
fuse
23,27,31,
45)
Multi4unction
clock
(see
also
fuse
23,26,27,
31,45)
On-Board
Computer
(seealsofuse
11,
12,23,26,27,
31,
33,37,
45)

47
1



15A
1
Anti-theft
system
(see
also
fuse
43)

48



40A



Heating
and
A/C
(IHKR
E36)(see
also
fuse
16,20,23,
31,
39,
41)

49



20A



Convertible
roof
(see
also
fuses
7,
24,
27,
42,43)

50



5A



Engine
control
DME
MS
41
.1
(seealso
fuses
16,18,39,
46)

FUSE
POSITION
TABLES

WARNING
-

"
Fuse
designations
and
locations
are
subject
to
change
and
may
vary
fromcar
to
car,
depending
on
options
.
If
questions
arise,
please
remember
that
an
authorized
BMW
dealer
is
the
bestsource
for
the
most
accurate
and
up-to-date
information
.

"
Tolocate
fuses
47-50,
refer
to
Fuse
Positions
inthis
repair
group
.

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

620-
4
INSTRUMENTS

MULTI-INFORMATION
DISPLAY
(MID)

Severa¡
different
versionsof
the
Multi-Information
Display,

have
been
installed
in
E36
cars
.
The
top-of-the-line
model
is

called
the
Oh-BoardComputer
.
See
Fig
.
8
.

Ambient
temperature/ciock

Check
control/clock

0013028

Fig
.
8
.



Different
versions
of
Multi-Information
Display
(MID)
installed
in
E36
cars
.

Multi-Information
Display,

removing
and
installing

The
Multi-Information
Display
(MID)
is
illuminated
by
bulbs
.

It
mustbe
removed
to
replace
the
bulbs
.
Bulb
replacement
is

included
in
this
procedure
.

1
.
Remove
dashboard
parcel
shelf
.
Reach
under
MID

module
and
pushoutward
.
See
Fig
.
9
.

2
.
Slide
harness
retaining
lever
forward
to
release
MID

from
wiring
harness
.
See
Fig
.
10
.

3
.
To
Rmove
a
faulty
bulb,
use
anarrow
screwdriver
to

turn
bulb
base
45°
counter
clockwíse
.
See
Fig
.
11
.

MULTI-INFORMATIONDISPLAY
(MID)

111

Fig
.
9
.



Removing
the
Multi-Information
Display(MID)
module
.

0012564

Fig
.
10
.
MID
wiring
harness
release
lever
(arrows)
.

Fig
.
11
.
Turn
bulb
base
45°
counterclockwise
.

4
.
Installation
is
reverse
of
removal
.

0012566

630-
4



EXTERIOR
LIGHTING

Front
turn
signal
assembly,



Side
Marker
Lights

removing
and
installing
Side
marker
lights
on
later
model
E36
cars
are
snapped
into

The
procedurebelow
also
includes
turn
signal
bulb
replace-



the
front
fenders
.
To
service,
carefully
pry
the
assembly
out
of

ment
.



the
fender,
then
detach
the
electrical
harness
connector
and

bulb
socket
.

1
.
Working
inside
engine
compartment,usea
screwdriver

to
press
turn
signal
assembly
retaining
clip
away
from

retaining
tab
on
headlight
assembly
frame
.
Push
turn



REAR
LIGHTING

signal
forward
.
See
Fig
.
9
.

Fig
.
9
.



Press
on
clip
(arrow)
.
Light
slides
straight
out
.

REAR
LIGHTING

0012571

2
.
Depress
tabs
on
bulb
socket
and
remove
from
turn
sig-

nal
assembly
.
See
Fig
.
10
.

0012572

Fig
.
10
.
Depress
locking
tabs
(arrows)to
remove
bulb
and
socket
from
turn
signal
housing
.

Taillight
Bulbs

To
access
taillight
bulbs,
see
Fig
.
11
.
The
location
of
the

rear
bulbs
are
shown
in
Fig
.
12
.
Turn
bulb
socket
1
/4turn
to
re-

move
.

Fig
.
11
.
To
remove
taillight
bulb
cover,
turn
retainer
(arrow)
1
/a
turn

counterclockwise
.

Fig
.
12
.
Taillight
bulb
identification
.

0012574

GENERAL

E36
cars
are
equipped
with
integrated
automatic
heating

and
air
conditioning
systems
.
Many
of
the
procedures
given
in

this
repair
group
require
that
the
A/C
refrigerant
charge
be

evacuated
using
specialized
equipment
.
See
A/C
System
Warningsand
Cautions
later
in
this
repair
group
.

HEATER
AND
CONTROLS

Blower
motor,
removing
and
installing

NOTE-

On
6-cylinder
cars,
the
plastic
top
enginecover
and
fuel
rail
covermustbe
removed
.
The
fuel
injectorhamess
re-
taining
screws
must
be
removed
and
the
harness
set
aside
.
The
engine
control
module
(ECM)
cover
must
be
removed,
the
control
unit
connectors
unplugged
and
the
harness
pulled
out
of
the
way
.
See
130
Fuel
Injection
.

1
.
Disconnect
negative
(-)
cable
from
battery
.

2
.
Open
hood
.
Unclip
engine
bulkhead
plenum
grille
at

base
of
windshíeld
and
remove
grille
.
See
Fig
.
1
.

HEATING
AND
AIR
CONDITIONING



640-1

640
Heating
and
Air
Conditioning

GENERAL
.
...
.
....
.
.
.
.
.
.
.
.
.
.......
.
.
.
640-1



Heater
andA/C
air
distribution
motor,

replacing(rotary-knob)
.
.
...
.
.
.
.......
.
640-10

HEATER
AND
CONTROLS
.
.....
.
.
.
.
.
.
.640-1



Rear
Window
Defogger
.
.
.



.
.
.
.
.
.
.
...
.
.
.
640-10
Blower
motor,
removing
and
installing
.
.
.
.
.
.
640-1



Rear
Window
Blower
(convertible
models)
.
.640-10

Blowermotor
resistor
pack,
replacing



.
.
.
.
.
.
640-3



AIR
CONDITIONING
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
640-11
Heater
valve,
replacing
...........
.
.
.
.
.
.
.
640-3

Heater
box,
removing
and
installing
.
.
.
.
.
.
.
.
640-4



A/CSystem
Warnings
and
Cautions
.
.
.
.
.
.
:640-11

Heater
core,
replacing
.....
.
.
:
....
.
.
.
.
.
.
.
640-6



A/C
compressor,
replacing
.
.
::.
:
:
.
.
.
.
.
.
.
.640-12

Heater
core
temperature
sensor,
replacing
.
.
640-7



A/C
Compressor
Clutch
.
.
.
.
.
.
.
:
.
.
.
.
.
.
.
.
.
640-13

Heater
andA/C
Control
Head
.
.
....
.
.....
.
640-7



A/C
condenser,
replacing
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
640-14

Heater
andA/C
control
head,
removing



A/C
receiver/drier,
replacing
.
.
.
.
.
.
.
.
.
.
.
.
.
640-15
and
installing
(rotary-knob)
.
.
....
.
......
640-7



A/C
expansion
valve,

Heater
andA/C
control
head,
removing



removing
and
installing
...
.
.....
.
.
.
.
.
.
.
640-16
and
installing
(digital-display)
.
.....
.
.....
640-8



A/C
evaporator,
removing
and
installing
.
.
..
640-17

Heater
andA/C
control
module,removing



A/C
evaporator
temperature
sensor,

and
installing
(rotary-knob)
.
.
...
.
.
.
.
.
.
.
.
640-8



replacing
.
.
.
.
.
.
..............
.
.
.
.
.
..
640-17

Heater
andA/C
control
module,removing



A/C
microfilter,
replacing
......
.
....
.
.
.
..
640-18

and
installing
(digital-display)
.
...
.
.
.
.
.
...
640-8

Sensor
fan
for
interior
temperature,



TABLES

replacing
.
.
.
....
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
640-9



a
.
Blower
Motor
Test
Values
.........
...
.
.
......
640-3

Heater
andA/C
AirDistribution
Motors
.
.
.
.
.
.
640-9



b
.
Heater
Core
Temperature
Sensor
Test
Values
...
.640-7

c
.
Evaporative
Temperature
Sensor
Test
Values
...
640-17

d
.
A/C
System
Fluid
Capacities
(total)
..
..........
640-18

0012527

Fig
.
1
.
Detach
grille
retaining
clips
(arrows)
and
pull
grille
upward
and
out
of
rubbergasket
.

CAUTION-

Prior
to
disconnectiog
the
battery,
read
the
battery
disconnection
cautionsgiven
at
the
front
of
this
manual
onpage
viii
.

HEATER
AND
CONTROLS

10
.
Pul¡
heater
core
up
and
backward,
away
from
heater
box
.
If
necessary,
remove
left
and
right
reinforcing
bracket
bolts
.
See
Fig
.
20
.

CAUTION-

Replace
coolant
flange
O-rings
and
tighten
fas-
teners
to
specified
torques
.

Tightening
Torques

1
.
Remove
center
console
.
See
513
Interior
trim
.

0012660

Fig
.
20
.
PA
heater
core
upand
towardback
of
car
.
Lower
mounting
bolts
for
steering
column
brace
and
glove
compartment
sup-
port
frame
may
have
to
be
removed
(arrows)
.

11
.
Installation
is
reverse
of
removal
.
Fill
and
bleed
cooling

system
.
See
170
Radiator
and
Cooling
System
.

"
Coolant
flange
to
heater
core
.
..
....
3
Nm
(27
in-lb)



Heater
andA/C
Control
Head

Heatercore
temperature
sensor,
replacing

The
automatic
heating
and
air
conditioning
systemuses

severa¡
sensors
to
control
interior
air
temperature
.
Use
the
fol-

lowing
procedure
and
the
data
in
Table
b
to
pinpoint
problems

with
theheater
core
sensors
.

2
.
Remove
Multi-Information
Display
(MID)
module
.
See

6201nstruments
.

HEATING
AND
AIR
CONDITIONING



640-7

0012648

Fig
.
21
.
Remove
heatercore
temperaturesensors
in
direction
shown
(arrow)
.

Table
b
.
Heater
CoreTemperatureSensor
Test

Values

Test
temperature



Resistance

4°F
(-20°C)



84
.39
-
109
.61
k
ohms

14
°
F
(-10°C)



48
.58
-
62
.09
k
ohms

32°F
(0°C)



28
.89
-
36
.40
k
ohms

68°F
(20°C)



11
.13
-
13
.83
k
ohms

140°F
(60°C)



2
.19
-
2
.78
k
ohms

212°F
(100°C)



0
.58
-
0
.77
k
ohms

Two
types
of
heater
and
aír
conditioning
control
heads
viere
installed
in
E36
cars
.
Early
models
have
control
heads
with
four
rotary
knobs
and
a
separate
control
module
.
A
flexible

shaft,
clipped
to
the
right
sideof
the
control
head,
controls
the
heater
flaps
.

Later
model
E36
cars,
starting
in
approximately
mid-1995,

have
digital
display
control
heads
with
buttons
.
The
A/C
con-
trol
module
is
integrated
with
the
digital
control
head
.

Heater
and
A/C
control
head,

removing
and
installing
(rotary-knob)

3
.
Pul¡
temperature
sensors
from
heater
box
and
discon-



1
.
Remove
Multi-Information
Display
(MID)
module
from

nect
harness
connectors
.
See
Fig
.
21
.



center
of
dash
.
See
620
Instruments
.

4
.
Installation
is
reverse
of
removal
.



2
.
Pul¡
off
outer
rotary
knobs
from
A/C
control
head
.
Re-

move
two
screwsonknob
bezels
.
Remove
control
pan-

el
face
plate
by
prying
it
off
control
head
gently
.
See
Fig
.

22
.

3
.
Carefully
push
control
head
back
into
dash
and
down-

ward
through
MID
opening
.
See
Fig
.
23
.

HEATER
AND
CONTROLS

GENERAL
.........
.
.......
.
.
.
.
.
.
.
.
.
..
650-1



Rear
speaker,
removing
and
installing
.
.
.
.
.
.650-5

Door
panel
speaker,

AUDIO
SYSTEM
............
.
.
.
.
.
.
.
.
.
..
650-1



removing
and
installing
.
.
.
.
.....
.
.
.
.
.
.
.
.650-5

Radio
connector
..
.
.
.
.
.
.
.
.
.
.......
.
.
.
.
.
.
650-6

RADIO
AND
SPEAKER
SERVICE
.
.
.
.
.
..
650-2

Radio,
removingand
installing
.
.
.
.
.
.
...
.
..
650-2

Left
footwell
speaker,

removing
and
installing
.
....
.
.
.
.....
.
.
.
650-3

Right
footwell
speaker,

removing
and
installing
.
....
.
.
.
.....
.
..
650-4

GENERAL



AUDIO
SYSTEM

Thissection
coversthe
BMW
factory-installed
sound
sys-



The
BMW
E36
is
equipped
with
a
three
band
radio/cassette

tem,
including
radio
and
speaker
removal,
radio
connectors



player
unit
mounted
in
the
middle
of
thecenter
console
.
In
ad

and
terminal
designations
.



dítion
to
AM
and
FM
bands,
the
radio
will
receive
broadcasts
from
theNational
Weather
Service
.

The
antenna
is
incorporated
into
the
rear
window
defogger
.

650
Radio

Fig
.
1
.



Radio
amplifier
(premiumpackage)
in
luggage
compartment
behind
left
panel
.

RADIO
650-1

TABLE

a
.
Radio
Connector
Terminal
Designation
...
.
......
650-6

The
cassette
deck
is
equipped
with
the
Do1byTM
C
noise
re-
ductionsystem,
for
improved
tape
performance
with
reduced

background
tape
noise
.

A
6-speaker
audio
system
was
standard
in
the
early
years

ofthe
model
line
.
Many
additional
features
have
been
in-
stalled
as
optional
or
standard
equipment
duringthevehicle
production
run
.

"
A
200-watt
power
amplifier
with
custom-contoured

equalization
and
ten
speaker
output
.
See
Fig
.
1
.

"
A
multi-disc
compact
disc
changer,
for
which
the
vehicle

and
the
radio
are
prewired
.
See
Fig
.
2
.

Fig
.
2
.



Optional
multi-disc
compact
disc
changerand
disc
cartridge
.

AUDIO
SYSTEM

650-2
RADIO

"
A
320-watt
Harmon-Kardon
ten
speaker
system,
including



RADIO
AND
SPEAKER
SERVICE
a
separate
high
power
multi-channel
audio
amplifier
and
two
sub-woofers
.
In
this
system,
thebass
and
volume
out-

puts
from
the
selected
audiosource
automatically
com-



Radio,
removing
and
installing

pensate
for
vehicle
speed,
making
constant
volume

adjustments
unnecessary
.
An
additional
feature
ofthis



CAUTION-
sound
system
is
the
ability
to
switch
from
normal
left-right



"
Before
beginning
work
on
the
radio
or
sound
stereo
into
Spatial
Enhancement
Mode,
which
produces
a



system,
verify
that
the
radio
is
an
original
equip-
fuller,
rounder
sound
.
See
Fig
.
3
.



ment
BMW
radio
and
that
thewiring
harness
has
not
been
modified
.
TheE36
radio
is
also
equipped
with
a
built-in
anti-theft
sys-

tem
.
lf
power
is
removed
from
the
radio
circuitry
by
removing

the
radio
electrical
connectors,
or
by
disconnecting
the
bat-
tery,
the
radio
is
rendered
inoperative
.
The
radio
is
not
perma-

nently
damaged,
and
proper
operation
can
be
restored
by

entering
the
radio
anti-theft
code
.

Fig
.
3
.
Ten
speaker
sound
system
.

RADIO
AND
SPEAKER
SERVICE

"
Servicing
of
aftermarket
sound
equipment
should
be
referredto
an
authorized
agent
of
the
equip-
ment's
manufacturer
.

"
Do
not
remove
radio
or
disconnect
the
batterywithout
first
obtaining
the
anti-theft
code
.

1.
Carefully
pry
open
small
square
covers
at
left
and
right

sides
of
radio
.