640-10
HEATING
AND
AIR
CONDITIONING
i
El
Radio
Antenna
Rear
.
,
si,-
Left
side
I
d
1
.
Rear
vents
2
.
Fresh
air
3
.
Face-level
vents
4
.
Recirculation
5
.
Footwell
vents
0013017
Fig
.
28
.
Location
oflate
production
air
distribution
motors
in
heater
box(shown
in
rear,
side
and
top
views)
.
Heater
andA/C
air
distribution
motor,
replacing
(rotary-knob)
1
.
Toaccess
left
side
motors
(dash
vent
mixing
or
recircu-
lation
flap),
remove
lower
dash
panel
and
knee
bolster
on
driver
side
.
See
513
Interior
Trim
.
2
.
To
access
right
side
motor
(fresh
air
flap),
remove
glove
compartment
.
See513
Interior
Trim
.
3
.
Each
motor
can
be
removed
after
its
electrical
wiring
harness
connector
has
been
removed
.
Squeeze
plastic
clip
to
release
motor
.
See
Fig
.
29
.
Fig
.
29
.
A/
C
air
distribution
motor
plastic
retaíning
clip
(arrow)
.
Re-
lease
clip
and
tilt
motor
out
of
housing
.
Rear
Window
Defogger
0011877
The
rear
window
defogger
switch
is
integrated
with
the
heating
andA/C
control
head
.
HEATER
AND
CONTROLS
Fig
.
30
.
Wiring
diagram
of
rear
window
defogger
and
radio
antenna
.
Rear
Window
Blower
(Convertible
Models)
A
blower
fan,
fitted
into
the
rear
seatback,
defogs
therear
window
.
It
will
only
operate
with
the
engine
nunning
and
the
top
raised
.
A
microswitch
behindthe
rear
seats
provides
the
signal
that
thetop
is
raised
.
To
access
the
blower
fan
motor,
it
is
necessary
to
remove
four
screwsfrom
the
center
seat
back
.
Remove
the
wiring
har-
ness
connector
and
motor
mounting
boits,
then
remove
motor
by
pulling
it
down
and
forward
.
See
Fig
.
31
.
ri
Suppressor
filter
1
0013005
Fig
.
31
.
Rear
window
blower
in
center
of
rear
seat
back
(arrow)
.
The
electric
rear
window
defogger
is
integrated
with
the
ra-
dio
antenna
.
See
Fig
.
30
.
y
/f
0013014
CAUTION
-
Always
replace
O-rings
when
reconnecting
refrig-
erant
fines
.
9
.
Before
recharging,
evacuate
system
for
at
least
30
min
.
Recharge
system
following
equipment
manufacturer's
instructions
.
See
Table
d
.
A/C
System
Refrigerant
Capacities
.
A/C
evaporator,
removing
and
installing
1
.
Followingmanufacturer's
instructions,
connectanap-proved
refrigerant
recovery/recycling/recharging
unit
to
A/C
system
and
discharge
system
.
2
.
Remove
complete
heater
boxas
described
earlier
.
3
.
Remove
expansion
valve
as
described
earlier
.
4
.
Unfasten
evaporator
sensor
electrical
harness
connec-
tor
and
puli
out
sensor
from
ieft
side
of
heater
box
.
See
Fig
.
50
.
Fig
.
49
.
Pull
out
evaporator
sensor
from
housing
in
direction
of
arrow
.
5
.
Remove
rear
heater
box
cover
.
6
.
Remove
clips
retaining
lower
evaporator
housingcover
.
Tilt
outheater
core,
then
pull
evaporator
out
of
housing
.
7
.
Installation
is
reverse
of
removal
.
CAUTION
-
Always
reptace
O-rings
when
reconnecting
refrtg-
erant
fines
.
8
.
Before
recharging,
evacuate
system
for
at
least
30
min
.
Recharge
system
following
equipment
manufacturer's
instructions
.
See
Table
d
.
A/C
System
Refrigerant
Capacities
.
HEATING
AND
AIR
CONDITIONING
640-17
8
.
Installation
is
reverse
of
removal
.
A/C
evaporator
temperature
sensor,
replacing
ou12b46
The
evaporator
temperature
sensor
is
mounted
in
the
left
(driver)
side
of
theheater
box
behind
thecenter
console
.
1
.
Remove
lower
dash
panel
and
knee
boister
on
driver
side
.
See
513
Interior
Trim
.
2
.
Remove
left
footwell
ventilation
duct
byremoving
re-
taining
rivet
in
bottom
of
duct
.
Pull
it
down
and
away
from
heater
box
.
See
Fig
.
50
.
Fig
.
50
.
Left
footwellventilatíon
duct
(arrow)
.
0o1300ba
3
.
Disconnect
sensor
electrical
connector
from
heater
box
.
Pull
sensor
straight
out
of
heater
box
.
Refer
to
Fig
.
49
.
4
.
Installation
is
reverse
of
removal
.
Table
c
.
lists
evapo-
rator
temperature
sensor
test
values
.
Tablec
.
Evaporator
Temperature
Sensor
Test
Values
Test
temp
.
Resistance
23°F
(-5°C)
11
.4
-11
.9
k
ohms
32°F
(0°C)
8
.8
-
9
.2
k
ohms
41
°F
(5°C)
6
.8
-
7
.2
k
ohms
50°F
(10°C)
5
.3-5
.6
k
ohms
59
°
F
(15°C)
4
.2
-4
.5
k
ohms
68°F
(20°C)
3
.3
-
3
.6
k
ohms
77°F
(25°C)
2
.6-2
.9
k
ohms
86°F
(30°C)
2
.1
-
2
.3
k
ohms
95°F
(35°C)
1
.7
-1
.9
k
ohms
AIR
CONDITIONING
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
2
.
Using
special
hex
key,
turn
radio
mountingscrews
counterclockwise
to
loosen
.
See
Fig
.
4
.
0011845
Fig
.
4
.
Use
special
hexkey
or
Torx
driver
to
loosen/tighten
radio
mountingscrews
.
3
.
Pul¡
radio
out
of
instrument
panel
opening
.
4
.
Remove
connector(s)
from
rearof
radio
.
See
Fig
.
5
.
Fig
.
5
.
Radio
connector
being
removed
.
5
.
Installation
is
reverse
of
removal
.
0011846
Left
footweil
speaker,
removing
and
installing
Fig
.
6
.
Hood
release
lever
retaining
screw
(arrow)
.
RADIO
650-
3
1
.
Remove
screw
from
center
of
hood
latch
release
lever
.
Remove
lever
.
See
Fig
.
6
.
0012578
2
.
Rotate
plastic
trim
panel
retainer
1
/4
turn
.
Pul¡
off
door
sea¡
from
edge
of
speaker
cover
and
pull
speaker
trim
panel
back
toward
rear
of
car
.
See
Fig
.
7
.
0012579
Fig
.
7
.
Rotate
plastic
retainer
(black
arrow)
andremove
panel
in
di-
rection
shown
(white
arrows)
.
RADIO
AND
SPEAKER
SERVICE
650-
4
RADIO
3
.
Remove
speakerby
removing
mountingscrews
.
See
Fig
.
8
.
Fig
.
8
.
Speaker
mounting
screws
(arrows)
.
0012580
4
.
Disconnect
harness
connector(s)
from
speaker
.
See
Fig
.
9
.
001,58
Fig
.
9
.
Disconnect
speaker
electrical
connector(s)
in
direction
shown
(arrows)
.
5
.
Installation
is
reverse
of
removal
.
Right
footwell
speaker,
removing
and
installing
1
.
Remove
glove
compartment
lower
trim
.
See
Fig
.
10
.
2
.
Rotate
speakercover
plastic
retainer
1
/a
turn
.
Remove
door
sea¡at
edge
of
speaker
cover
.
See
Fig
.
11
.
3
.
Pul¡
speaker
trim
panel
away
from
body
and
then
pul¡
panel
back
toward
rear
of
car
.
RADIO
AND
SPEAKER
SERVICE
0012582
Fig
.
10
.
Remove
lower
glove
compartment
trim
panel
retaining
screw
(black
arrow)
.
Pull
trim
in
direction
shown
(white
arrows)
.
0012583
Fig
.
11
.
Speaker
cover
retainer
(black
arrow)
.
Pulltrim
in
direction
shown
(white
arrow)
.
4
.
Remove
speaker
by
removing
mountingscrews
.
Dis-
connect
harness
connector(s)
from
speaker
.
5
.
Installation
is
reverse
of
removal
.
Rear
speaker,
removing
and
installing
Door
panel
speaker,
removing
and
installing
NOTE
-
Rear
speakers
in
convertible
models
are
installed
un-
der
the
rear
side
panels
.
For
rearside
panelremoval
procedure,
see
411Doors
.
1
.
Working
at
rear
parcel
shelf,
pry
speakercoverby
inner
edge
and
remove
.
See
Fig
.
12
.
0011632
Fig
.
12
.
Pry
up
inner
edge
of
speaker
cover
off
rear
parcel
shelf
.
2
.
Remove
mountingscrews
and
depress
speaker
retain-
ing
clip
.
See
Fig
.
13
.
Lower
speaker
into
trunk
.
Fig
.
13
.
Remove
screws
(A)
and
depress
clip
(B)
.
4
.
Installation
is
reverse
of
removal
.
0011633
3
.
Disconnect
speaker
connector
andremove
speaker
from
box
.
RAM
650-5
1.
On
carswith
side-impact
airbags,
disconnect
negative
(-)
cable
from
battery
.
CAUTION-
Prior
to
disconnecttog
the
battery,
read
the
battery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
vi¡¡
.
2
.
Remove
inner
door
panel
.
See
411
Doors
.
WARNING
-
Some
1997
and
all
1998
model
year
cars
are
equipped
with
front
side-impact
airbags
in
the
front
doors
.
When
servicing
the
doors
with
front
side-im-
pact
airbags,
alwaysdisconnect
the
negative
()
battery
terminal
.
See
721Airbag
System
(SRS)
for
cautions
and
procedures
relating
to
theairbag
sys-
tem
.
3
.
On
back
of
door
panel,
remove
nut
on
top
of
speaker
retaining
bracket
and
remove
bracket
from
behind
speaker
.
See
Fig
.
14
.
Fig
.
14
.
Speaker
retaining
nut
(arrow)
.
4
.
Disconnect
speaker
connector
from
harness
connector
and
remove
loudspeaker
forwardthrough
door
panel
.
5
.
Installation
is
reverse
of
removal
.
Install
side-impact
airbag
using
new
screws
.
See
721
Airbag
System
(SRS)
.
RADIO
AND
SPEAKER
SERVICE
Front
seat
belt
reel,
removing
and
installing
1
.
On
4-door
models
:
Remove
seat
belt
anchor
bolt
from
front
seat
.
Refer
to
Fig
.
1
.
2
.
On
2-door
models
:
Remove
seat
belt
anchorbar
from
rear
of
door
sill
.
See
Fig
.
4
.
Fig
.
4
.
Two-door
seat
belt
anchor
bar
(arrow)
.
3
.
On
4-door
and
coupe
models
:
Remove
plastic
trim
cov-
er
from
B-pillar
(rear
door
jamb
pillar)
sliding
seat
belt
guide
.
Remove
nut
and
guide
loop
.
See
Fig
.
5
.
4
.
On
4-door
models
:
Starting
at
upper
corners,peel
rub-
ber
door
seals
away
from
B-pillar
trim
.
Remove
trim
from
B-pillar
.
5
.
On
2-door
models
:
Remove
reasside
panel
.
See
411
Doors
.
Fig
.
5
.
B-pillar
seat
belt
guide
nut
trim
(arrow)
.
SEAT
BELTS
720-
3
move
reel
and
seat
belt
.
9
.
Installation
is
reverse
of
removal
.
0012672
ou12a74
Fig
.
6
.
B-pillar
trim
removed
to
show
seat
belt
cross-bracket
bolts
(arrows)
.
8
.
Disconnect
harness
connector
from
reel
assembly
.
Re-
Tightening
Torque
6
.
Remove
two
bolts
holding
cross
bracket
to
B-pillar
.
See
"
Front
seat
belt
to
seat
Fig
.
6
.
(use
thread
locking
compound)
.
....
47
Nm
(35
ft-Ib)
"
Front
seat
belt
guide
loop
7
.
Remove
seat
belt
reel
mounting
boltat
base
ofB-pillar
.
to
B-pillar
sliding
anchor
.
..
.
.
.
....
31
Nm
(23
ft-Ib)
"
Front
seat
beltreeltoB-pillar
..
.
....
48
Nm
(36
ft-Ib)
FRONT
SEAT
BELT
ASSEMBLY
720-
4
SEAT
BELTS
REAR
SEAT
BELT
ASSEMBLY
On
4-door
E36
models,
there
are
two
3-point
shoulder
belts
and
a
center
lap
beltin
back
.
On
2-doormodels,
there
is
no
center
rear
lap-belt
.
In
models
with
the
stationary
rear
seat
back,
the
shoulder
belt
reels
are
bolted
to
themiddle
of
the
parcel
shelf
.
In
modeis
with
fold-down
rearseat
back,
the
shoulder
belt
reels
are
at-
tached
to
the
folding
seat
back
.
The
rearseat
belt
assemblies
are
shown
in
Fig
.
7
.
Fig
.
7
.
Detafs
of
rearseat
belt
assembly
.
Seats
.
REAR
SEA
T
BELT
ASSEMBLY
1
.
Remove
rear
seat
cushion
and
backrest
.
See
520
2
.
Remove
plastictrim
cover
over
shoulder
belt
reels
from
rear
window
shelf
.
See
Fig
.
8
.
3
.
Remove
rear
window
shelf
.
See
Fig
.
9
.
4
.
Unbolt
andremove
shoulder
belt
reels
.
NOTE-
The
shoulder
belt
anchor
belts
also
hold
thecenter
lap-
belt
in
place(where
applicable)
.
Be
sure
to
note
relative
positions
of
metal
belt-end
anchors
in
order
to
reas-
semble
correctly
.
body
next
to
rear
door
frame
.
8
.
Installation
is
reverse
of
removal
.
5
.
Remove
shoulder
belt
anchor
bolt
frombeneath
rear
seat
.
WARNING
-
Alignment
tabs
on
seat
belt
reels
must
be
rein-
stalled
in
their
original
positions
Fig
.
8
.
Remove
rear
shoulder
belt
reel
trim
cover
from
rear
window
shelf
.
Unclip
plastic,
then
slide
off
shoulder
belts
as
shown
by
arrows
.
Rear
seat
belt,
removing
and
installing
Fig
.
9
.
Remove
rear
window
shelf
.
Speaker
grilles
and
third
brake
(fixed
seat
back
modeis)
light
socket
will
have
to
be
removed
.
The
front
of
the
shelf
lifts
offits
clips
(black
arrows)
before
the
shelf
slides
forward
.
6
.
On
4-door
models
:
Unbolt
shoulder
belt
lock
bolt
from
7
.
On
2-door
models
:
Remove
rearside
panel
asde-
scribed
in
411
Doors
.
Unbolt
shoulder
belt
lock
bolt
from
body
nextto
quarter
panel
.
Tightening
Torques
"
Rear
seat
belt
reelbolt,
anchor
bolt,
or
lock
boltto
body
.
.
.....
.
...
...
.
48
Nm
(36
ft-Ib)