Temperatur engine BMW 318i 1992 E36 Repair Manual
Page 402 of 759
610-16
ELECTRICAL
COMPONENT
LOCATIONS
Component
Model
Year
Location
Refer
to
MixingSwitch
1992-1994
Center
console
Multi-Function
Clock
1992-1998
Center
console
Multi-information
Display
(MDI)
1992-1998
Center
console
Normal
Speed
Cooling
Fan
Relay
1992-1998
Power
distribution
box
Fig
.
2
.
Neutral
SafetySwitch
(Automatic
1992-1998
Next
to
gear
shift
lever
in
center
console
Fig
.
29
.
Transmission
Range
Switch)
Oil
Pressure
Switch
1992-1998
Left
front
of
engine
below
intake
manifold
at
oil
filter
housing
On-Board
Computer
1992-1998
Center
console
On-BoardComputerHorn
Relay
1992-1998
Behind
glove
compartment
Fig
.
8
.
Fig
.
9
.
On-Board
Computer
Temperature
11992-1998
I
Right
front
of
engine
compartment
Sensor
Outside
Temperature
Sensor
1992-1997
Inright
front
brake
cooling
duct
Outside
Temperature
Sensor
1998
Right
rear
of
engine
compartment
behind
fresh
air
cowl
Oxygen
Sensor
HeaterRelay
1992-1998
Power
distribution
box
Fig
.
2
.
Oxygen
Sensor(s)
1992-1998
On
exhaust
pipe
ahead/behind
catalytic
converter
(M42/M44
engine)
Oxygen
Sensor
(x2)
1992-1995
On
exhaust
pipe
ahead
of
catalytic
converter
(M50/S50US
engine)
Oxygen
Sensors
(x4)
1996-1998
On
exhaust
manifold/exhaust
pípe
behind
catalytic
converter
(M52/S52US
engine)
Parking
Brake
Switch
1
1992-1998
I
On
rear
of
parking
brake
lever
Power
Distribution
Box
11992-1998
I
Rear
left
of
engine
compartment
I
Fig
.
2
.
Fig
.
7
.
Fig
.
10
.
Radio
Microswitch
1992
-
1996
Center
console
behind
radio
Radio
Receíver
1
1997-1998
1
Right
rear
luggage
compartment
Relay
And
Fuse
Box
(Power
1992-1998
I
Left
side
of
engine
compartment
I
Fig
.
2
.
Distribution
Box)
Fig
.
7
.
Fig
.
10
.
Rear
Window
Blower
1994-1998
Behind
rear
seat
(convertible)
Rear
Window
Blower
Microswitch
1994-1994
At
convertible
top
linkage
Rear
Window
Blower
Microswitch
1995-1998
Behind
rear
seat
(convertible)
Rear
Window
BlowerRelay
11994-1998
Behind
glove
compartment
Fig
.
8
.
Fig
.
9
.
Fig
.
2
.
Fig
.
30
.
Fig
.
8
.
Rear
Window
DefoggerRelay
Reversing
(Back-up)
Light
Switch
SplicePanel,
Right
Rollover
Protection
Actuator
11994-1998
COMPONENT
LOCATIONS
Table
a
.
E36
Component
Locations
1992-1998
1992-1998
1992-1998
Power
distribution
box
Right
or
left
side
top
of
transmission
Behind
glove
compartment
Behind
rear
seat
(convertible)
Fig
.
9
.
Continued
Page 438 of 759
620-2
INSTRUMENTS
Fig
.1.
Instrument
cluster
retaining
screws
(arrows)
.
INSTRUMENT
CLUSTER
0012562
Fig
.
3
.
Turnbulb
base
45°
in
direction
shown
(arrow)
.
l
v
w
r
v
9
10
11
12
13
14
15
16
)7
18
19
20
y
21
1
.
Temperature
warning
12
.
Brake
fluid
warning
oo13n6
2
.
Right
turn
signal
13
.
Brake
pad
wear
warning
3
.
Instrument
lighting
14
.ABS
warning
Fig
.
2
.
Instrument
cluster
connector
locking
lever
(arrow)
.
4
.
Oil
pressure
warning
15
.
Seat
belt
warning5
.
Highbeam
16
.ASTwarning
6
.
Battery
charging
lamp
17
.Check
control
6
.
Installation
is
reverse
of
removal,
noting
the
following
:
7
.
Left
turn
signal
18
.Check
engine
"
Instrument
cluster
harness
connector
locking
levers
8
.
Low
fuel
warning
19
.
LCD
lighting
must
be
in
up
position
before
installing
connector
.
9
.
Airbag
warning
20
.
Rear
foglight
(not
used)
10
.
Catalytic
converter
warning
21
.
Front
foglights
"
Install
airbag
to
steering
wheel
as
described
in
721
11
.
Emergency
brake
Airbag
System
(SRS)
.
0012563
"
Reconnect
negative
(-)
cable
to
battery
last,
once
al¡
Fig
.
4
.
Bulb
designation
chart
.
harness
connectors
have
been
reconnected
.
"
Recode
cluster
as
described
in
Instrument
cluster,
CAUTION-
seif-testing
.
Note
wattage
of
bulb
.
Excessive
wattage
could
melt
cluster
housing
.
Replace
defective
bulbs
with
Instrument
cluster
bulbs,
replacing
reptacementbulbs
of
the
same
wattage
.
1
.
Remove
instrument
cluster
as
described
above
.
Odometer
coding
plug,
replacing
2
.
Remove
faulty
bulb
by
turning
bulb
base
45°
inits
mount
and
remove
from
housing
.
See
Fig
.
3
.
The
coding
plug
maintains
a
record
of
thevehicle
mileage
.
The
back
of
the
instrument
cluster
and
its
bulb
locations
are
1
.
Record
vehicle
mileage
.
shown
in
Fig
.
4
.
2
.
Remove
instrument
cluster
as
described
earlier
.
Page 447 of 759
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
Page 452 of 759
640-6
HEATING
AND
AIRCONDITIONING
Heater
core,replacing
1.
Drain
engíne
coolant
.
See170
Radiator
and
Cooling
System
.
WARNING
-
Allow
the
cooling
system
to
cool
before
opening
or
drainíng
the
cooling
system
.
2
.
Remove
center
console
.
See
513
Interior
Trim
.
3
.
Remove
Multi-Information
Display
(MID)
module
.
See
620
Instruments
.
4
.
Remove
lower
dash
panel
and
knee
bolster
on
driver
side
.
See
513
Interior
Trim
.
Fig
.
17
.
Wire
harness
retaining
clips
and
wire
ties
at
heater
box
cover
5
.
Working
under
driver
side
of
dash,
remove
coolant
(arrows)
.
flange
from
heater
core
.
See
Fig
.
16
.
0012651
Fig
.
16
.
Bolts
at
3-way
coolant
flange
under
driver's
side
of
dash
(ar-
rows)
.
NOTE-
Residual
coolant
in
heater
core
will
spill
.
Protect
thecarpet
.
6
.
Working
at
front
of
driveshaft
tunnel,
unclip
wire
har-
nesses
and
move
to
one
side
in
front
of
heater
box
.
See
Fig
.
17
.
7
.
Remove
heatercore
temperature
sensorsas
described
later
in
this
repair
group
.
8
.
Remove
front
heater
box
cover
.
See
Fig
.
18
.
9
.
On
right
side
of
heater
box,
unclip
heater
air
duct
actu-
ating
lever
.
Remove
cross-rod
(with
flaps)
from
frontof
heater
core
.
See
Fig
.
19
.
HEATER
AND
CONTROLS
0012662
Fig
.
18
.
Screws
retaining
front
heater
box
cover
(shown
removed)
to
heater
box
(arrows)
.
0012661
Fig
.
19
.
Pry
heater
flap
actuating
lever
in
direction
A
.
Pull
offair
flap
cross-rod
in
direction
B
.
Page 461 of 759
Fig
.
42
.
Upper
A/C
condensermounting
bolts
(arrows)
.
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
.
A/C
receiver/drier,
replacing
The
A/C
receiver/drier
is
mounted
in
the
front
right
cornee
of
the
engine
compartment
behind
the
headlight
assembly
.
CAUTION-
The
receiver/drier
must
be
replaced
when
-There
is
dirt
in
the
AIC
system
-The
compressor
has
seized
or
has
been
re-
placed
for
any
reason
-The
condenser
or
evaporator
are
replaced
for
any
reason
-The
AIC
system
is
leaking
and
there
is
no
more
refrigerant
-The
AIC
system
was
open
for
24
hours
or
more
.
1
.
Following
manufacturer's
instructions,
connectan
ap-
proved
refrigerant
recovery/recycling/recharging
unit
to
A/C
system
and
discharge
system
.
2
.
Remove
right
headlight
assembly
.
See
630
Exterior
Lighting
.
CAUTION-
3
.
Disconnect
A/C
electrical
harness
connectors
.
See
Fig
.
Always
replaceO-rings
when
reconnecting
refrig-
43
.
erant
lines
.
4
.
Remove
refrigerant
pressure
lines
from
receiver/drier
.
Plug
lines
immediately
.
5
.
Remove
receiver/drier
mounting
bolts
.
0013182
6
.
Remove
underbody
splash
shield
on
passenger
side
.
See
Fig
.
44
.
7
.
Remove
passenger
side
brake
cooling
duct
.
Discon-
nect
outside
temperature
sensor
harness,
if
applicable
.
HEATING
AND
AIR
CONDITIONING
640-15
0012669
Fig
.
43
.
A/
C
receiver/drier
electrical
harness
connectors
(A),
pressure
line
retaining
bolts
(B),
andmounting
bolts
(C)
.
0012668
Fig
.
44
.
Passenger
sidesplash
shield
retaining
screws
(arrows)
.
8
.
Push
receiver/drier
down
andremove
from
underneath
car
.
Make
sure
that
receiver/drier
is
clear
of
any
electri-
cal
harnesses
.
9
.
Installation
is
reverse
of
removal
.
10
.
Before
recharging,
evacuate
system
for
at
least
30
min
.
Recharge
system
following
equipment
manufacturer's
instructions
.
See
Table
d
.
A/C
System
Refrigerant
Capacities
.
AIR
CONDITIONING
Page 519 of 759
84831
HEADLIGHT/
RIGHT
I
I
FOG
LIGHT
I
I
HIGH
I
I
WASHER
I
(BEAM
I
(CANADA)
I_
I
LIGHT
,7
WASHER
BIGHT
I
FLUID
I
I
LOW
I
I
LEVEL
I
I
BEAM
SWITCH
LIGHT
I
I
_
(
GSA
)
I
_I
TURN
I
LIGHT
I
I
I
L_
__--_J
I
I
DIMMER
I
I
I
I
INSTRUMENT
I
I
CLUSTER
I
I
LIGHT
I
I
SWITCH
BRN
1
SPIN
FROMLEFTWASHER
JETHEATER
1
(DIAGRAM20F3)
G202
1993
ONLY
Ground
Distribution
1992-93
(1
of
5)
STARTEP
I
I
RELAY
I
I
1993
ONLY
RIGHT
(
)
FRONT
AUXILIARY
TURN
LIGHT
ELECTRICAL
WIRING
DIAGRAMS
ELE-35
LEFT
I
I
PARK
I
I
LIGHT
I
_I
RELAY
I
I
I
WASHER
PRESSURE
"'
RIGHT
I
PUMP
I
I
SWITCH
(
)
FRONT
I
I
(
(CANADA)
I
I
PARK
I
I
I
II
LIGHT
RIGHT
(
)
FRONT
TURN
Y
LIGHT
_
__
_
_
_
_
_
_
__
AUXILIARY
ENGINE
LEFT
LEFT
LEFT
-
LEFT
r
-1
(
(
FAN
I
(
COOLANT
I
(
LOW
I
(
HIGH
I
(
HORN
)
FOG
I
'CONTROL
FIGHT
I
-
.
I
I
(
MOTOR
I
(
LEVEL
I
(
BEAM
LIGHT
CONTROL
I
(
HORN
LEFT
I
(BEAM
I
I
I
(ACTUATOR
II(
)PARK
I
I
I
I
I
SWITCH
I
(
LIGHT
I
(
LIGHT
L-1
_
_
_
L-1
_
I
-I
"°"'
!7T
,7,T,
,
,
-
LEFT
(
)
FRONT
1-1-
ONLY
1992
T
4
-
ONLY
-
1993
ONLY
I
(TEMPERATURE
I
SWITCH
I
IGNITION
II
II
SWITCH
4L
Gill
I
6111
WIPER/
I
---
I
WASHER
II
SWITCH
_
_
II
CASSETTE
HORN
(
)
BOX
I
I
SWITCH
RIGHT
(
)
FOG
v
LIGHT
BRN
LIGHT
-
I
I
(COMBINATION
~-I
SWITCH)
~f
-
1993
ONLY
ON-BOARD
UNLOADER
LEFT
DIMMER
LEFT
I
I
(
COMPUTER
I
(
RELAY
I
(
SEAT
I
(
SWITCH
I
(
)
PARK
I
I
I
I
i
I
(
HEATER
I
I
_
RIGHT
I
.-
LIGHT
I
I_
-
I
I
-I
I
_(
SWITCH
~
_I
(
)
FRONT
I
I
AUXILIARY
I
I
17
9
4
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LEFT
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"
-
1992
ONLY
Page 522 of 759
ELE-38
ELECTRICAL
WIRING
DIAGRAMS
64869
MULTI-
HEADLIGHT/
HAZARD
RADIO
ENGINE
ON-BOARD
(
FUNCTION
I
I
FOGLIGHT
I
(
SWITCH
I
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I
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I
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I
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(
Ily
CANADA)
3
,1
1Y
13Y
R
BRN
Ground
Distribution
1992-93
(4
of
5)
GLOVE
ANTI-
CHARGING
TWIN
TRANSMISSION
INTENSIVE
I
v
I
BOX
I
I
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I
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I
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I
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I
I
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I
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LIGHT
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I
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I
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I
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I
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I
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I
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I
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I
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1993
ONLY
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AY
_
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1992
ONLY
Page 524 of 759
ELE-40
ELECTRICAL
WIRING
DIAGRAMS
RIGHTHEADLIGHT/
RIGHT
I
FRONT
I
FOG
LIGHT
I
HIGH
I
TURN
I
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,
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T
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1994-95
Except
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Page 529 of 759
890fi9
INTER-
WASHER
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FLUID
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ELE-45
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Page 538 of 759
ELE-54
ELECTRICAL
WIRING
DIAGRAMS
HEADLIGHT/
RIGHT
RIGHT
LEFTLEFT
LEFT
FOGLIGHT
HIGH
RIGHT
ANTI-
DOUBLE
RIGHT
FRONT
AUXILIARY
LEFT
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84317
ENGINE
CAMSHAFT
TRANSMISSION
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POSITION
CONTROLMODULE
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I
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Ground
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1995-96
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