Drive fluid BMW 325i 1994 E36 Owner's Guide
Page 287 of 759
GENERAL
......
.
.
.
.
.
.
.
.....
.
.
.
.
.
.
.
.
.
.
331-1
Final
Drive
Oil
Seals
.
.
...
.
.
.
.......
.
.
.
.
.
331-1
Finaldrive
flange
oil
sea¡,
replacing
....
.
.
.
..
331-2
FINAL
DRIVE
SERVICE
.
.....
.
.
.
.
.
.
.
.
.
.
331-1
Finaldrive
inputshaft
oil
seal,
replacing
.
.
.
.
.
331-3
Final
drive
oí¡,
draining
and
filling
.
.
.
.
.
.
.
.
.
.
331-1
Finaldrive
unit,
removíng
and
installing
.
.
.
.
.
.
331-3
GENERAL
This
repa¡r
group
covers
repair
operations
that
do
not
re-
quire
complicated
disassembly
of
the
final
drive
.
Internal
re-
pairs
and
final
drive
disassembly
are
not
covered
in
this
manual
.
FINAL
DRIVE
SERVICE
Al¡
final
drive
work
requires
some
method
of
raising
thecar
and
supporting
it
securely
while
the
work
is
performed
.
Jack
stands
and
a
floor
jack
can
easily
be
used,
but
use
extreme
caution
when
working
beneath
the
car
.
See010
Fundamen-
tais
for
the
Do-It-Yourself
Owner
.
NOTE-
Removal
of
final
drive
carrier
is
covered
in
330
Rear
Suspension
.
Final
drive
oil,
draining
and
filling
1
.
Drive
car
to
warm
final
drive
fluid
.
2
.
Raise
car
and
support
safely
.
WARNING
-
Make
sure
that
thecar
is
firmly
supported
on
jack
standsdesigned
for
the
purpose
.
Place
the
jack
standsbeneatha
structural
chassis
point
.
Do
not
place
jack
stands
under
suspension
parts
.
5
.
Fill
final
drive
with
appropriate
type
and
quantity
of
lu-
bricant
.
Insta¡¡
and
tighten
fill
plug
.
331
Final
Drive
0
Fig
.
1
.
Final
drivedrain
plug
(A)
and
fill
plug
(B)
.
D
NOTE-
The
final
drive
fluid
level
is
correct
when
the
fluid
begins
to
spill
from
the
fill
plug
.
Final
Drive
Oil
Seals
FINAL
DRIVE
331-1
0013113
Final
DriveDrain
and
Fill
"
Oil
specifications
w/o
limited
slip
.
.......
BMW
SAF-XO
Synthetic
Oil
with
limited
slip
.
......
BMW
SAF-XIS
Synthetic
Oil
"
Final
drive
oil
capacity
4-cylinder
.
.
.
...
................
1
.1
liters
(1
.2
qt)
6-cylinder
.
.
.
...
................
1
.7liters(1.8
qt)
3
.
Place
a
drain
pail
below
final
drive
andremove
drain
and
fill
plugfrom
final
drive
.
See
Fig
.
1
.
Low
oil
level
caused
by
faulty
oil
seals
may
be
the
cause
of
noisy
final
drive
operation
or
limited-slip
chatter
.
The
drive
NOTE-
flange
(side)
and
inputshaft
(front)
oil
seals
can
be
replaced
"
Use
a14
mm
alíen
bit
socket
to
remove
the
drain
plug
.
while
the
final
drive
is
installed
.
Alternatively,
cut
approximately
30
mm
(1
.2
in)
from
an
alíen
key
and
usea
box
end
wrenchon
the
key
NOTE-
stub
.
Do
not
mistake
leaking
CV
joints
for
flangeseal
leaks
.
4
.
Install
and
tighten
drain
plug
.
It
may
be
helpful
to
degrease
the
final
drive
to
pinpoint
the
source
of
the
leak
prior
to
replacing
seals
.
FINAL
DRIVE
SERVICE
Page 288 of 759
331-2
FINAL
DRIVE
Make
sure
that
the
car
is
firm1y
supportedon
Tjack
.
.-
"
:
.-
:
.
n
-
2
.
Detach
drive
axle(s)
from
final
drive
.
See330
Rear
Suspension
.
CA
UTION-
Suspend
the
detached
drive
axlefrom
the
car
body
with
a
stiff
wire
hook
to
prevent
damage
to
the
outer
CV
joint
.
Fig
.
3
.
Drive
flange
snap
ring
(arrow)
to
be
removed
from
final
drive
3
.
Pry
drive
flange
from
final
drive
.
See
Fig
.
2
.
housing
.
Fig
.
2
.
Drive
flange
being
pried
off
.
For
leverage,
use
a
wooden
dowel
as
shown
.
4
.
Remove
wire(snap)
ring
from
final
drive
opening
.
See
Fig
.
3
.
NOTE-
Inspect
flangeat
the
point
where
the
oil
seal
rides
on
the
shaft
.
Replace
the
flange
assembly
if
there
is
agrooveworn
in
the
shaft
FINAL
DRIVE
SERVICE
9
.
Attach
drive
axle
and
tighten
bolts
.
10
.
Top
off
final
drive
with
ofl
.
B315
5
.
Pry
old
oil
sea¡
from
its
recess
using
a
hooked
seal
re-
moval
tool,
or
a
large
screwdriver
.
Use
pan
to
catch
draining
fluid
.
CA
UTION-
Be
careful
not
to
mar
the
final
drive
housing
when
removing
the
sea¡
.
6
.
Dip
new
seal
in
final
drive
lubricant
and
drive
seal
into
place
untilfully
seated
.
7
.
Insta¡¡
new
snap
ringin
groove
of
final
drive
housing
.
Make
sureboth
ends
ofring
are
fully
seated
in
groove
.
8
.
Insta¡¡
drive
flangeby
pressing
it
in
by
hand
until
snap
ring
engages
.
It
may
benecessary
to
turn
drive
flange
slightly
while
pushing
.
Tightening
Torque
"
Drive
axle
to
final
drive
flange
M8
Torx
bolt
..
..................
64
Nm
(47
ft-Ib)
M10
Torx
bolt
.
.................
100
Nm
(74
ft-Ib)
Page 297 of 759
Brake
rotor,
removing
and
installing
Brake
rotors
shouldalways
be
replaced
in
pairs
.
Fig
.
9
.
Brake
rotor
mounting
screw
(arrow)
.
3
.
Inspect
rotor
for
excessive
grooving,
cracks,
and
warp-
ing
.
Check
rotor
thickness
.
See
Table
b
.
4
.
Installation
is
reverse
of
removal
.
"
Clean
rotor
with
brakecleaner
before
installing
.
"
If
brake
fluid
hose
veas
removed
or
loosened,
brake
systemmustbe
bled
as
described
aboveunder
Bleeding
Brakes
.
BRAKES
340-
7
5
.
Once
brake
assembly
is
instalind,
depress
brakepedal
several
times
to
adjust
caliper
and
pads
.
"
Pedal
should
feel
firm
and
be
at
proper
height
.
"
Check
fluid
leve¡
.
Top
up
if
necessary
.
NOTE-
M3
models
use
directional
brake
rotors
and
mustbe
in-
NOTE-
stalled
on
the
proper
side
.
Part
numbes
are
cast
finto
When
installing
new
rear
brake
rotors,
the
parking
therotors
.
A
part
that
ends
in
an
odd
number
is
a
left
brakeshouldbe
adjusted
.
See
Parking
Brake
.
rotor
.
One
that
ends
in
an
even
number
is
a
right
rotor
.
1.
Remove
caliper
as
described-above
and
hang
from
Tightening
Torques
chassis
using
stiff
wire
.
"
Brake
rotor
to
wheel
hub
..........
16
Nm
(12
ft-Ib)
"
Front
brake
caliper
to
steering
arm
...
110
Nm
(81
ft-Ib)
NOTE-
"
Rear
brake
caliper
to
traíling
arm
....
67
Nm
(50
ft-Ib)
Do
notloosen
caliper
brake
hose
.
"
Road
wheel
to
hub
...
..
.
100
±
10
Nm
(74
t
7
ft-Ib)
2
.
Remove
mountingscrew
holding
rotor
to
wheel
hub
.
,
See
Fig
.
9
.
Table
b
.
Brake
Rotor
Reconditioning
Specificati*M`
Front
Rear
Vented
rotor
wear
limit
(min
.
thickness)
20
.4
mm
(0
.803
in.)
Solid
rotor
wear
limit
(min
.
thickness)
8
.4
mm
(0.331
in
.)
M3
models
wear
limit
(min
.
thickness)
26
.4mm
(0
.977
in
.)
18
.4
mm
(0
.723
in
.)
Axial
runout
(max
.)
rotor
removed
0
.05
mm
(0
.002
in
.)
0
.05
mm
(0
.002
in
.)
rotor
installed
0
.20
mm
(0
.008
in
.)
0
.20
mm
(0
.008
in
.)
CAUTION-
M3
brake
rotors
must
not
be
machined
.
MASTER
CYLINDER
The
brake
master
cylinder
is
mounted
to
the
front
of
the
vac-
uum
booster
on
the
driver
side
bulkhead
.
Master
cylinder,
removing
and
installing
1
.
Using
a
clean
syringe,
empty
brake
fluid
reservoir
.
WARNING
-
Brake
fluid
is
highly
corrosive
and
dangerous
to
the
environment
.
Dispose
of
it
properly
.
NOTE-
On
original
equipment
rotors,
the
mínimum
allowable
2
.
Disconnect
brake
fluid
leve¡
sender
connector
from
fluid
thickness
is
stamped
on
the
rotor
hub
.
Measure
the
rotor
reservoi
r
cap
.
brakingsurface
with
a
micrometer
at
eight
to
ten
different
points
and
use
the
smallest
measurement
recorded
.
3
.
Disconnect
brake
fluid
lines
frommaster
cylinder
.
See
Fig
.
10
.
Disconnect
hydraulic
clutch
system
supply
line
.
4
.
Unscrew
mounting
nuts
and
remove
master
cylinder
from
brake
booster
.
5
.
Make
sure
all
nuts,
fluid
couplings,
thread
bores,
and
mating
surfaces
are
clean
.
MASTER
CYLINDER
Page 298 of 759
340-
8
BRAKES
Fig
.
10
.
Brake
fluid
linesat
master
cylinder
(arrows)
.
6
.
If
fluid
reservoir
was
removed,
install
it
carefully
using
new
sealing
grommets
.
7
.
Mount
master
cylinder
to
brake
booster
using
a
new
0-
ring
and
new
self-locking
nuts
.
CAUTION-
Use
cave
not
to
over-torque
the
master
cylinder
mounting
nuts
.
This
could
damage
the
brake
booster
and
prevent
proper
vacuum
build-up
.
0012164
8
.
Connect
all
brake
fluid
lines
.
Connect
hydraulic
clutch
hose
to
brake
fluid
reservoir
.
9
.
Reconnect
fluid
leve¡
sender,
and
bleed
entire
brake
systemas
described
earlier
.
BRAKE
BOOSTER
BRAKE
BOOSTER
The
brake
booster
is
mounted
to
the
bulkhead
on
the
driver
sideofthe
engine
compartment,
directly
behind
the
brake
master
cylinder
.
See
Fig
.
11
.
0015225
Fig
.
11
.
Brake
booster
(arrow)
.
A
is
vacuum
hose
from
intake
mani-
fold
.
B
is
one-way
valve
.
Intake
manifold
vacuum
acts
ona
large
diaphragm
in
the
brake
booster
to
reducebrake
pedal
effort
.
Brake
booster,
removing
and
installing
1
.
Disconnect
negative
(-)
cable
from
battery
.
CAUTION-
Prior
to
disconnecting
the
battery,
read
the
battery
disconnection
cautions
given
at
the
front
of
this
manual
onpage
vi¡¡
.
Tightening
Torque
"
Brake
master
cylinder
to
2
.
Using
a
clean
syringe,
empty
brake
(luid
reservoir
.
brake
booster
.....
..
.
..
.........
26
Nm
(18
ft-Ib)
WARNING-
"
Brake
fluid
hose
to
caliper
....
17-19
Nm
(13-14
ft-Ib)
Brake
fluid
is
highly
corroslve
and
dangerous
to
the
environment
.
Dispose
of
it
properly
.
3
.
Remove
brake
fluid
level
sender
connector
from
reser-
voir
cap
.
4
.
Disconnectbrake
fluid
lines
from
master
cylinder
.
Plug
openings
.
5
.
Disconnect
engine
vacuum
hose
from
brake
booster
.
Page 404 of 759
610-18
ELECTRICAL
COMPONENT
LOCATIONS
Tablea
.
E36
Component
Locations
Component
Model
Year
Location
Refer
to
Transmission
Control
Module
1992-1998
Right
rear
engine
compartment
behíndpanel
Fig
.
7
.
Transmission
Range
Switch
(Gear
1992-1998
Next
to
gear
shift
lever
in
center
console
Fig
.
29
.
Position/Neutra
l
Safety
Switch)
Transmission
Valve
Unít
1992-1993
In
transmission
oil
pan
Transmission
Valve
Unit
1994-1998
On
left
side
of
transmission
Trunk
Lid
Microswitch
1994-1998
In
trunk
lid
Trunk
Lid
Relay
1994-1998
Behind
glove
compartment
(convertible)
Fig
.
8
.
Fig
.
9
.
Trunk
Light
Switch
1992-1998
Left
underside
of
trunk
lid
TrunkLockMotor
1992-1998
Rear
of
luggage
compartment
UnloaderRelay
1992-1998
Inleft
splice
panel
behind
footwell
speaker
grille
Fig
.
5
.
Variable
Camshaft
Control
Module
1994-1996
I
Rear
right
side
of
engine
compartment
(VANOS)
Variable
Camshaft
Control
(VANOS)
1993-1998
Front
ofcylinder
head
Veh¡cle
Speed
Sensor
1992-1998
On
final
drive
Volume
Air
Flow
Sensor
(M42
1992-1995
Left
side
of
engine
compartment
Fig
.
7
.
Engine)
Washer
Fluid
Leve¡
Sensor
1992-1998
Right
frontof
engine
compartment
Washer
Pump
1992-1998
Right
side
of
engine
compartment
on
windshield
washer
reservoir
Fig
.
7
.
Wiper
Motor
1992-1998
Rear
engine
compartment
Wiper
Motor
Relay
1992-1998
Inleft
splice
panel
behind
footwell
speaker
grill
Fig
.
5
.
Wiper
Relay
1992-1998
(
Behind
glove
compartment
I
Fig
.
8
./
Fig
.
9
.
Wiper/Washer
Module
1992-1993
Left
side
of
footwell
under
foot
rest
(early)
Wiper/Washer
Module
1993
(late)-
Behind
glove
compartment
Fig
.
8
.
1998
1
Fig
.
9
.
ZAE
Airbag
Control
Module
1
1994-1998
1
On
center
tunnel
under
rear
seat
cushion
ZKE
IV
Control
Module
1994-1998
I
Behind
glove
compartment
Fig
.
8
.I
Fig
.
9
.
COMPONENT
LOCATIONS
Page 524 of 759
ELE-40
ELECTRICAL
WIRING
DIAGRAMS
RIGHTHEADLIGHT/
RIGHT
I
FRONT
I
FOG
LIGHT
I
HIGH
I
TURN
I
I
WASHER
I
I
BEAM
LIGHT
I
(PUMP
I
(LIGHT
,
L-
1
1
1
I
(POWER
I
(DOOR
I
]CONTROL
_
_
_-1
WINDOW
I
(
(CONSOLE)
I
(
(CONSOLE)
WASHER
RIGHT
WASHER
PRESSURE
m
ANTI-
--
SWITCH
--
POWER
--
(L
DOOR)
I
(FLUID
I
LOW
I
(PUMP
I
SWITCH
(-
IITHEFT
S
(CONVERTIBLE)
S
SWWINDOW
ITCH
3
I
(LEVEL
I
(BEAM
I
I(CANADA)
m
II
I
IIHORN
WSWITCH
I
SWITCH
I
(
LIGHT
I
I
I
I
I
(1995)
(4
DOOR)
I7
IT
~
~T
I
(
)
PARK
I
-
LIGHT
I
I
'DRIVERS
(
(PASSENGERS
I
(CENTRAL
LEFT
,
JI
I
(WINDOW
I(
POWER
]
(POWER
AUXILIARY
LEFT
I
FRONT
I
RIGHT
WINDOW
WINDOW
I
,
_
_
_
FAN
I
(
HIGH
(-
TURN
I
-
(
HORN
LEFT
I
(
SWITCH
I
(SWITCH
I
(
SWITCH
I
(
MOTOR
LIGHT
I--
I
LIGHT
LIGHT
¢~
¢~
¢~
(CONVERTIBLE)
I
I,
-I
I
-(
---
-
84318
ENGINE
LEFT
LEFT
CRUISE
I
I
I
rII
I
I
COOLANT
m
LOW
HORN
CONTROL
I
(LEVEL
I
(BEAM
I
II
I
(ACTUATOR
I
_I
SWITCH
I
-
(LIGHT
I
I_
-I
1
1
1
8
BRN
LEFT
LEFT
LEFT
I
I
I
I
I
I
REAR
REAR
REAR
RIGHT
I
I
(
POWER
I
(
DOOR
I
(
WINDOW
I
PARK
I
I
(WINDOW
I
((CONSOLE)
I
SWITCH
I
l,
LIGHT
I
--
SWITCH
--
POWER
-
r
-
(6
DOOR)
(CONVERTIBLE(
/A
BF.
T
BRN
Ground
Distribution
1994-95
Except
318ti
(1
of
5)
I
(TEMPERATURE
-
RIGHT
I
SWITCH
)FOG
51
¢1
WINDOW
SWITCH
(C
DOOR)
I
I
REAAT
I
,
FEAR'
I
,
PCHILD
ROTECTION
LEFT
FRONT
BRAKE
WIPER
THROTTLE
OW
WIPER/
LEFT
I
,
WASHER
I
(
FOG
I
(
FLUID
I
(
MOTOR
I
(FLAP
I
(LBEAM
I
(
WASHER
(
)
FRONT
I
(JET
I
[LIGHT
I
(LEVEL
I
I
I
(HEATER
I
(LIGHT
I
MODULE
_
AUXILIARY
_
_
_
(HEATER
I
-(RELAY
I
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