1994 BMW 325i intake

6
.
Disconnect
ABS
electrical
connectors
.
Label
and
then

disconnect
brake
lines
from
hydraulic
brake
unit
.
Plug

openíngs
.
See
Fig
.
12
.

~
~
A
1/
B
'1v
C
~
F

lu
11
-ri
J
.

0013244
A
.
Right
front



F



Front
from
master
cylinder
B
.
Leftfront



R
.
Rear
from
master
cylinder
C
.
Rear

Fig
.
12
.
Brake
fluid
linesat
ABS
hydraulic
unit
.

WARNING
-

"
On
cars
with
All
Season
Traction
(AST),
special
BMW
service
equipment
is
required
to
properly
bleed
the
Antilock
Brake
System
(ABS)
.
Removal
of
the
ABS
hydraulic
unit
is
not
recommended
un-
less
this
equipment
is
available
.
For
safetyrea-
sons,
the
brake
system
on
cars
with
ABS
must

not
be
bled
using
the
procedures
described
inthis
repair
group
.

"
Do
not
mix
up
the
fluid
fines
at
the
ABS
hydraulic
unit
Label
all
connections
before
disconnecting
.

7
.
Remove
ABS
hydraulic
unit
from
engine
compartment
.

8
.
Working
inside
car,
remove
panel(s)
frombeneath

steering
column
to
access
pedal
assembly
.
See513
In-

terior
Trim
.

12
.
Make
sure
al¡
nuts,
fluid
couplings,
thread
bores
and

mating
surfaces
are
clean
.

BRAKES
340-
9

0011261

Fig
.
13
.
Brake
pedal
clevispin
and
retaining
clip
(A)
.
Brake
booster
mounting
nuts
shown
at
arrows
.

13
.
If
necessary,
mount
master
cylinder
to
vacuum
booster

using
a
new
O-ríng
and
newself-locking
nuts
.

CAUTION-

Do
not
over-torque
the
master
cylinder
mounting
bolts
.
This
could
damage
the
brake
booster
and
prevent
proper
vacuum
build-up
.

14
.
Installation
is
reverse
of
Rmoval
.

"
Bleed
brakes
as
described
earlier
.

"
Check
and,
if
necessary,
adjust
brake
light
switch

above
brake
pedal
.

Tightening
Torques

"
Brakemaster
cylinder
to

brake
booster
...........
.
..
..
...
26
Nm
(18
ft-Ib)

"
Brake
booster
to
bulkhead
.
.
..
..
...
22
Nm
(16
ft-Ib)

"
Brake
fluidline
to
master
cylinder
or

ABS
hydraulic
unit
.......
.
..
17-19
Nm
(13-14
ft-lb)
9
.
Remove
clip
and
clevis
pin
from
brake
booster
pushrod

and
disconnect
it
from
brakepedal
.
Remove
brake

booster
mounting
nuts
.
See
Fig
.
13
.
NOTE-

10
.
Working
in
engine
compartment,
remove
brake
booster



When
replacing
the
brake
booster
one-way
valve
or
together
with
master
cylinder
.



vacuum
hose,
install
the
valve
so
that
the
molded
arrow

is
pointing
toward
the
intake
manifold
.
Use
new
hose

11
.
If
booster
or
master
cylinder
O-ring
is
being
replaced,



clamps
.

disconnect
master
cylinder
from
brake
booster
.

BRAKE
BOOSTER

1
.
Heater
valves
2
.
ABS
pedal
travel
sensor3
.
ABS
pump

Fig
.
10
.
Left
rear
of
engine
compartment
.

4
.
Main
engineharness
con-
nector
5
.
Power
distribution
box

ELECTRICAL
COMPONENT
LOCATIONS
610-5

0013202
0013226

Fig
.
11
.
M42
engine
idie
speed
control
valve
(arrow)
beneath
intake
manifold

0012421

Fig
.
12
.
M44
engine
intake
air
temperature
(¡Al)
sensor
in
air
filter
housing

Fig
.
13
.
M50/S50U
S
engine
intake
air
temperature
(IAT)
sensor
(1)
and
throttle
position
sensor
(2)
.

301180

0012724

Fig
.
14
.
M52/S52U
S
engine
intake
air
temperature
(IAT)
sensor
in
bot-
tom
of
intake
manifold
(throttle
housing
shown
removed)
.

COMPONENT
LOCATIONS

610-6



ELECTRICAL
COMPONENT
LOCATIONS

Fig
.
15
.
M44
engine
harness
connectors
atair
intake

0011644
Fig
.
16
.
A/
C
recharging
ports
(arrows),
right
rear
of
engine
compart-ment

COMPONENT
LOCATIONS

0012427

811004

Fig
.
17
.
Six-cylinder
ignition
coil
in
top
of
cylinder
head
(M52
engine)
.

Fig
.
18
.
Cooling
fan
dualswitch
in
radiator
(arrow)
.

0013203

610-12



ELECTRICAL
COMPONENT
LOCATIONS

Table
a
.
E36
Component
Locations

Component



Model
Year



Location



Refer
to

Combination
(Stalk)
Switch



1993-1998



Left
sidesteering
column
(turn
signals/high-low
bean
switch)

Convertible
Top
ActuatingSwitch



1994-1998



Center
console

Convertible
Top
Control
Module



1994-1998



In
lower
left
C-pillar
behind
trim
panel

Convertible
TopEnd
Position
Switch



1994-1998



In
convertible
top
linkage

Convertible
Top
Motor



1994-1998



In
left
sideof
trunk
behind
trim
panel

Convertible
Top
Position



1994-1998



In
convertible
top
linkage
Microswitch
Convertible
Top
Storage
Lid
Lock



1994-1998



In
convertible
top
compartment
left
side
Motor

Convertible
Top
Storage
Lid



1994-1998



Inright
side
convertible
top
storage
lid
latch
Microswitch

Convertible
Top
Storage
Lid
Motor



1994-1998



In
left
side
of
trunk
behind
trim
panel

Coolant
Leve¡
Sensor
(if
applicable)



1992-1998



Bolted
on
radiator,
left
side

Coolant
Temperature
Sensor



1992-1998



Left
front
of
engine/cylinder
head



Fig
.
19
.
Fig
.
20
.

Cooling
Fan
Dual
Switch



1992-1998



Right
side
radiator



Fig
.
18
.

Cooling
Fan
Motor



1992-1998



Behind
front
grill

Crankshaft
Position/RPM
Sensor



1992-1995



At
front
crankshaft
pulley

Crankshaft
Position/RPM
Sensor



1996-1998



Left
rearof
crankcase

Crash
Sensor,
Airbag



1992-1993



On
right/left
frontstrut
tower

Crash
Control
Module



1992



Auxiliary
relay
panel

Crash
Control
Module



1993-1998



Driver's
side
footwell

Crash
Sensor,
Right/Left
Side



1997-1998



Right/left
door
sill
behind
front
seat
Impact
Airbag

Cruise
Control
Actuator



1992-1998



Left
front
of
engine
compartment



Fig
.
7
.

Cruise
Control
Module



1992-1998



Behind
glove
compartment



Fig
.
8
.
Fig
.
9
.

Data
Link
Connector



1992-1998



Right
sideof
engine



Fig
.
7
.

Digital
Motor
Electronics
(DME)



1992-1998



Right
rear
engine
compartment,
behind
bulkhead
panel



Fig
.
7
.
Control
Module

DoorLock
Heater



1993-1994



Left
front
doorhandle
DoorHandle
Switch



1994-1998



left
front
door

Drive-away
Protection
(EWS
II)



1/1995
-
1998



Behind
glove
compartment



Fig
.
8
.
Module



Fig
.
9
.

Dual
Coolant
Temperature
Sensor



1997-1998



Below
intake
manifold



Fig
.
19
.

COMPONENT
LOCATIONS

Fig
.
20
.

Electronic
Immobilizer
Control



(
1/1995-1998
~
Behind
glove
compartment



Fig
.
8
.
Module
(EWS
II)



Fig
.
9
.

Continued

Tablea
.
E36
Component
Locations

Component



Model
Year



Location



Refer
to
Engine
Compartment
Light
Switch



1993-1996



Over
right
headlight
assembly



Fig
.
7
.

Engine
Control
Module
(ECM)



1992-1998



Right
rear
enginecompartment,
behind
bulkhead
panel



Fig
.
7
.

Engine
Control
Module
(System)



1992-1998



I
Power
distribution
box



Fig
.
2
.
Relay
Engine
Coolant
Leve¡
Sensor



1
1992-1998



1
Left
front
of
enginecompartment,
radiator
coolant
reservoir

Engine
Coolant
Temperature



1992-1998



I
Left
front
of
engine
under
intake
manifold



I



Fig
.
19
.
Sensor



Fig
.
20
.

Evaporative
Emission
Valve



1992-1998



Left
side
strut
Power
area

Evaporator
Temperature
Sensor



1992-1998



Left
side
of
heater
box

EWS
II
Control
Module



1/1995
-
1998



Behind
glove
compartment



Fig
.
8
.
Fig
.
9
.

EWS
II
Ring
Antenna



1
1/1995
-
1998
1
At
ignition
cylinder

EWS
II
Transmitter
Module



1/1995
-
1998



Right
side
of
steering
column
in
auxiliaryrelay
panel



Fig
.
3
.

Exhaust
Gas
Flap
Valve



1996-1998



Left
rear
muffler
area

Flasher
Relay



1992-1998



Power
distribution
box



Fig
.
2
.

Foglight
Relay



1



1992-1998



1
Power
distribution
box



1



Fig
.
2
.

Fresh
Air
FlapActuator



1



1992



1
Right
side
of
heater
box

Fresh
Air
FlapActuator



1
1993-1995



1
Below
right
side
heater
box

Fresh
Air
FlapActuator



1
1996-1998



Below
left
side
heater
box

Fuel
Injectors



1992
-
1998



Top
left
side
of
engine

Fuel
Leve¡
Sensor,
Left



1
1992-1998



/
Under
left
side
of
rear
seat
infuel
tank

Fuel
Leve¡
Sensor,
Right



1



1992-1998



1
Under
right
side
of
rear
seat
in
fuel
tank



1



Fig
.
28
.

Fuel
Pump



1



1992-1998



1



Under
right
side
of
rear
seat
in
fuel
tank



1



Fig
.
28
.

Fuel
Pump
Relay



1



1992-1998



1
Power
distribution
box



1



Fig
.
2
.

Fuel
Pump/Start
Identification
Relay



1994
-
1996



Power
distribution
box

Fuel
Tank
Pressure
Sensor



1
1997-1998



1
Right
rear
wheel
well
behind
trim
liner

ELECTRICAL
COMPONENT
LOCATIONS



610-13

Fuse
andRelay



x(Power



11992-1998



I
Left
side
of
engine
compartment



I



Fig
.
2
.
Distribution
Box



Fig
.
7
Fig
.
10
.

Gas
Filler
LockMotor



1992-1998



Right
side
of
luggage
compartment

Gear
Position/Neutral
Safety
Switch



1992-1998



Next
to
gear
shift
lever
in
center
console



Fig
.
29
.
(Automatic
Transmission
Range
Switch)

Glove
Compartment
Lock
Motor



1994-1998



Behind
glove
compartment

Grounds

G
100



1995-1998



Front
of
left
front
fender
(headlights)



Fig
.
22
.

G
101



1992-1998



Front
of
right
front
fender

Continued

COMPONENT
LOCATIONS

Component



Model
Year



Location



Refer
to

Heater
Recirculation
Flap
Actuator



1992-1998



Below
left
dash
right
side
of
steering
column

HeaterBlowerMotor
Resistor
Pack



1992-1998



Behind
center
of
dashboard

Heater
Regulator
FlapActuator



1997-1998



Right
side
of
heater
box

HeaterValve
Assembly



1992-1998



Left
rear
engine
compartment

HeatingNentilation
Relay
Box



1992-1993



Below
left
side
of
dash

HeatingNentilation
Relay



1994-1998



Left
front
footwell

High
Speed
Cooling
Fan
Relay



1992-1998



Power
distribution
box



Fig
.
2
.

Homs,
Right/Left



1993-1998



Front
of
engine
compartment

Horn
Relay



1992-1998



Power
distribution
box



Fig
.
2
.

Horn
Relay
(Alpine)



1994-1998



Behind
glove
compartment



Fig
.
8
.
Board
Computer/Anti-Theft



Fig
.
9
.

Idle
Speed
Control
Valve



1992-1995



Top
rearof
enginebehind
intake
manifold
(M42
engine)



Fig
.
11
.

Idle
Speed
Control
Valve



1992-1995



Top
left
side
of
engine
(M50
engine)

Idle
Speed
Control
Valve



1993-1996



Below
intake
manifold
(M50/S50US
engine)

Idle
Speed
Control
Valve



1996-1998



On
throttle
housing
(M44
engine)



Fig
.
15
.

Idle
Speed
Control
Valve



1997-1998



Left
front
of
engine
below
intake
manifold
(M52/S52US
engine)

Ignition
Coils



1992-1998



Right
of
engineunder
plastic
cover
(four-cylinder)



Fig
.
7
.

Ignition
Cofs



1992-1998



Top
of
engine
undercover
(six-cylinder)



Fig
.
17
.

Ignition
Switch



1992-1998



Right
sídeofsteering
column

Intake
Air
Resonance
Changeover



1992-1998



Leftrear
of
engine
compartment
Valve(DISA)

Intake
Air
Temperature
Sensor



1992-1995



In
mass
air
flow
sensor
(M42
engine)

Intake
Air
TemperatureSensor



1996-1998



In
top
ofair
filter
housing
(M44
engine)



Fig
.
12
.

Intake
Air
Temperature
Sensor



1992-1998



I
Left
sídeof
engine
in
intake
manifold
(six-cylinder)



-



-



I



Fig
.
13
.
Fig
.
14
.

Kick-Down
Switch
(A/T)



1
1992-1998



1
Left
footwell

Mixing
Actuators



1
1992-1998



1
Heater
box

ELECTRICAL
COMPONENT
LOCATIONS



610-15

Table
a
.
E36
Component
Locations

Knock
Sensors



1
1992-1998



1
Left
side
of
engine
block

Left
Front
Power
Window
Motor



11992-1998



/
Left
front
door

Left
Front
Window
Monitoring
Switch
1
1997-1998



1
Left
front
door
trim
panel

Left
Front
Window
Retraction
Switch
1
1992
-
1993



1
Left
front
door
handle
lock
assembly

Left
Splice
Panel



1
1992-1998



1
Under
left
side
of
dash
at
kick-panel



1



Fig
.
5
.

Main
Fuse
and
Relay
Box
(Power



1992-1998



I
Left
sideof
engine
compartment



Fig
.
2
.
Distribution
Box)
1



I

Mass
Air
Flow
Sensor



1992-1998



I
Left
side
of
engine,
intake
air
duct



Fig
.
7
.1



I
Fig
.
15
.

Continued

COMPONENT
LOCATIONS

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

630-2



EXTERIOR
LIGHTING

Headlight
assembly,

removing
and
installing

CAUTION-

Followingheadlight
assembly
work
headlight

beam
aim
must
be
adjusted
using
special
equip-
ment
.

1
.
Left
side
:
Remove
air
filter
housing,
air
intake
duct,
and

air
mass
meter
.
See
100
Engine-General
.

2
.
Disconnect
harness
connectors
from
headlight
bulbs
.

3
.
Remove
front
turn
signal
.
See
Front
turn
signal
as-

sembly,
removingand
installing
later
in
this
repair

group
.

4
.
Remove
radiator
cover
.
See
Fig
.
2
.

5
.
Using
a
wrench,
brace
adjusting
nut
at
top
center
of
headlight
.
Remove
three
screws
at
top
of
assembly
.

See
Fig
.
3
.

Fig
.
3
.



Brace
headlightadjustingnut
as
shown
and
remove
top
screws
(arrows)
.

FRONT
LIGHTING

0012568
0012569

6
.
Remove
two
screwson
bottom
of
assembly
.
See
Fig
.

4
.

0012567a

Fig
.
4
.



Headlight
bottom
retaining
screws
(arrows)
.
Screws
mount
in
threaded
expanding
rivets
which
act
as
headlightheight

adjusters
.

7
.
Remove
headlight
assembly
from
front
.

8
.
On
installation,
tighten
lower
screws
first
while
holding

expanding
rivets
with
a
wrench
.
There
should
be
a
2
.5

mm
gap
between
bottom
oflens
and
front
panel
.
Use

adjusting
nut
to
raise
or
lower
headlight
unit
.
See
Fig
.
5
.

0012681

Fig
.
5
.



Measure
gap
A
(2.5
mm)
between
bottom
of
headlight
as-
sembly
and
front
panel
.

9
.
Clearance
between
hood
and
headlight
cover
should
be
1
.5
mm
.
Adjust
by
turning
upper
headlight
adjustinq
nuts,
then
tighten
down
center
screw
.
See
Fig
.
6
.