1994 BMW M3 transmission oil

200-2
TRANSMISSION-GENERAL

Transmission
ID
Codes

On
both
manual
and
automatic
transmissions,
the
code
let-

ter
and
transmission
type
numbers
should
be
located
onan
ID

plate
attached
to
the
síde
of
thetransmission
.
Do
not
rely
on

numbers
cast
on
the
transmission
case
for
identification
.

In
addition,
thetransmission
lubricant
varies
between
trans-

missions
and
model
years
.
Fluid
application
information
should
be
clearly
marked
on
a
label
on
thetransmission
.

On
manual
transmissions,
either
ATF
(orange
label
reads

ATF-Oil!)
or
a
special
BMW
lubricant
(yellow
label
reads
MTF-

LT
1)
are
used
.
See
230Manual
Transmission
.

Automatic
transmissions
are
filled
with
either
Dexron
III
ATF
(black
trans
.
type
plate
reads
ATF-Oil!),
a
special
ffe-
time
oil
(green
trans
.
type
plate
reading
Life-Time
ó1)
.
See
240AutomaticTransmission
.

GENERAL

CAUTION-

lf
in
doubtas
to
the
typeof
fluid
installed
in
a
par-
ticular
transmission,
consult
and
authorized
BMW
dealer
service
department
for
the
latest
in
operat-
ing
fluids
.

Fig
.
2
.



Typical
location
of
IDpíate
on
automatic
transmission
housing
(arrow)
.
A4S
310R
(THM-R1)

Fig
.
3
.



Clutch
master
cylinder
mounting
bolts
.

Clutch
slave
cylinder,
replacing

0012589

Tightening
Torques

"
Clutch
master
cylinder
to
bulkhead
..
22
Nm
(17
ft-Ib)
"
Fluid
line
to
master
cylinder

orslave
cylinder
.................
16
Nm
(12
ft-1b)

The
clutch
slave
cylinder
is
mounted
on
the
left
side
of
the

transmission
.



CLUTCH
MECHANICAL

1
.
Remove
brake
fluid
reservoir
cap
.
Using
a
clean
sy-

ringe,
remove
brake
fluid
from
reservoir
.

2
.
Disconnect
fluid
hose
from
slave
cylinder
.
Place
a
pan

under
hose
to
catch
any
excess
fluid
.

3
.
Unbolt
slave
cylinder
from
transmission
.
See
Fig
.
4
.

4
.
Installation
is
reverse
of
removal,
noting
the
following
:

"
Check
for
wear
on
pushrod
.
Any
other
wear
except
on

tipis
caused
by
misalignment
of
clutch
components
.

"
Lightly
coat
pushrod
tip
with
molybdenum
disulfide

grease
(Molykote
0
Longterm
2
or
equivalent)
.

"
During
installation
be
sure
pushrod
tip
engages
recess

in
clutch
release
lever
.

"
Fill
fluid
reservoir
with
clean
fluid
.

"
Bleed
clutch
hydraulics
as
described
earlier
.

CLUTCH
210-
3

Fig
.
4
.



Clutch
slave
cylinder
mounting
bolts
(arrows)
.

Tablea
.
ClutchDisc
Diameter

Model



Diameter

3181/is/iC



215
mm
(8
.46
in)

325i/is/iC



228
mm
(8
.98
in)
323is/iC

328i/is/iC



240
mm
(9
.45
in)
M3

0012715

Tightening
Torques

"
Clutch
slave
cylinder

to
transmission
.
.
................
22
Nm
(17
ft
lb)
"
Fluid
line
to
slave
cylinder
......
.17
Nm
(10-12
ft
lb)

The
transmission
must
be
removed
from
the
engine
to
ac-

cess
the
clutch
mechanical
components
.
It
is
recommended

that
the
clutch
disc,
pressure
plate
and
release
bearing
be
re-

placed
duringa
clutch
overhaul
.
Be
sure
to
check
the
bottom

of
the
bellhousing
for
oil
.
If
engine
oil
is
found,
check
for
a

faulty
rear
crankshaft
oil
seal
.

CLUTCH
MECHANICAL

230-2



MANUAL
TRANSMISSION

Transmission
fluidleve¡,
checking

Checking
thetransmission
oil
level
involves
simply
remov-
ing
the
side
drain
plug
and
inserting
a
finger
into
the
holeto
check
the
fluid
leve¡
.
lf
the
fluid
leve¡
is
up
to
the
bottom
of
the
drain
hole
(finger
is
wetted
by
transmission
fluid),
the
leve¡
is

correct
.

Transmission
fluid,
replacing

NOTE-

Manual
transmission
fluid
type
should
be
printed
ona
label
on
the
side
of
the
transmission
.
If
in
doubt,
consult
an
authorized
BMW
dealer
for
the
up-to-dateinforma-
tion
on
operating
fluids
.

1
.
Drive
vehicle
for
afew
miles
to
warm
transmission
.

2
.
Raise
and
safely
support
vehicle
to
access
drain
plug
.

WARNING
-

"
When
raising
the
car
uslng
a
floor
jack
or
a
hy-
draulic
lift,
carefully
position
the
jack
pad
to
pre-
vent
damaging
the
car
body
.
A
suitable
liner
(wood,
rubber,
etc
.)
should
be
placed
between
the
jack
and
the
car
to
prevent
body
damage
.

"
Watch
the
jack
closely
.
Make
sure
it
stays
stable
and
does
not
shíít
or
tilt
.
As
the
car
is
raised,
the
car
may
roll
slightly
and
the
jack
may
shift
.

3
.
Place
a
drain
pan
under
transmission
andremove
drain
plug
at
bottom
of
transmission
.
See
Fig
.
1
.

Fig
.
1
.



Manual
transmission
fill
(1)
and
drain
plugs
(2)
.

TRANSMISSION
SERVICE

4
.
Install
and
torque
drain
plug
.

5
.
Remove
fill
plug
from
side
of
transmission
.
Slowly
fill

transmission
with
fluiduntilfluid
overflows
fill
hole
.

6
.
Install
and
torque
fluid
fill
plug
.

Fluid
Capacity

"
Getrag
transmission
...........
1
.0
liter
(1.1
US
qts)

"
ZF
transmission
.............
1
.2
liters(1
.3
US
qts)

Tightening
Torque

"
Transmission
drain
or
fill
plug
.......
50
Nm
(37
ft-Ib)

TRANSMISSION
SERVICE

Back-up
light
switch,
replacing

1
.
Raise
and
safely
support
vehicle
to
accessback-up

light
switch
.

NOTE-

"
The
back-up
light
switch
on
Getrag
transmissions
is
in
the
left
rearof
the
transmission
.

"
Theback-up
light
switch
on
ZF
transmission
isin
the
rightfront
of
thetransmission
.

2
.
Unscrew
switch
from
transmission
.

3
.
Install
new
switch
.

Tightening
Torque

"
Back-up
light
switch

to
transmission
..
..
.
.....
.
..
.....
20
Nm
(15
ft-ib)

4
.
Check
transmission
fluid
leve¡
before
lowering
vehicle
.

Selector
shaft
seal,
replacing

(transmission
instalied)

1
.
Raise
and
safely
support
vehicle
to
access
drain
plug
.

2
.
Support
transmission
with
transmission
jack
.

3
.
Remove
driveshaft
.
See
260
Driveshaft
.

4
.
Remove
transmission
crossmember
and
tilt
down
rear

of
transmission
.

CA
UTION--

Tilting
the
engine
to
lower
the
transmission
can
lead
to
damage
to
various
cgmponents
due
to
lack
of
clearance
.
-On
cars
with
AST
(traction
control)
remove
throt-
tle
body
before
tiltlng
engine
.
-Remove
brake
fluid
reservoir
lf
necessary
.

Locking
pin

á



Locking
clip

8
.
Reinstall
shift
linkage
to
selectorshaft
.

7
.
Coat
new
seal
with
transmission
fluid
.
Drive
new
seal
in

flush
with
housing
.
Use
BMW
special
seal
installation
tool
no
.
23
2
260
orequivalent
and
a
soft-faced
(plastic)

hammer
.
See
Fig
.
4
.

9
.
Fiaise
transmission
and
reinstall
crossmember
.

MANUAL
TRANSMISSION



230-
3

Seal
Selector

_
shaft

5
.
Working
at
rear
of
selector
shaft,
disconnect
shift
link-



Fig
.
3
.



Selector
shaft
oil
sea¡
being
pried
out
with
screwdriver
.

age
from
selectorshaft
.
See
Fig
.
2
.

Fig
.
4
.



Selector
shaftseal
being
installed
.

6542

0012020

Fig
.
2
.



Disconnect
shift
linkage
from
transmission
selector
shaft
by

prying
back
locking
clip
and
pushing
locking
pin
out
.



10
.
Install
driveshaft
using
new
nuts
.
See260
Driveshaft
.

6
.
Carefully
pry
sea¡
out
with
a
narrow
seal
remover
or



11
.
Check
transmission
oil
level,
topping
upas
necessary
.

small
screwdriver
.
See
Fig
.
3
.

Tightening
Torques

"
Driveshaftto
flex
disc/

final
drive
flange
..............
See
260
Driveshaft

"
Transmission
crossmember
to
chassis

M8
........
..
.
...
........
22-24
Nm
(16-17
ft-1b)

M10
........
.
.
...
...
.
.........
42
Nm
(31
ft-Ib)

TRANSMISSIONSERVICE

230-
4



MANUAL
TRANSMISSION

Output
shaft
sea¡,
replacing

(transmission
installed)

1
.
Raise
and
safely
support
vehicle
.
Support
transmission

with
transmission
jack
.

WARNING
-

"
When
raising
thecar
using
a
floor
jack
or
a
hy-
draulic
lift,
carefully
position
the
jack
pad
to
pre-vent
damaging
the
car
body
.
A
suitable
liner
(wood,
rubber,
etc
.)
should
be
placed
between
the
jack
and
the
car
to
prevent
body
damage
.

"
Watch
the
jack
closely
.
Make
sure
it
stays
stable
and
does
not
shift
or
tilt
.
As
the
car
is
raised,
the
car
may
roll
slightly
and
the
jack
may
shift
.

2
.
Remove
driveshaft
.
See
260
Driveshaft
.

3
.
Remove
transmission
crossmember
and
lower
trans-

mission
at
rear
.

CAUTION-

Tilting
the
engine
to
lower
thetransmissíon
can
lead
to
damage
to
various
componente
due
to
lackof
clearance
.
-On
cars
with
AST
(traction
control)
remove
throt-
tle
body
before
tilting
engine
.
-Remove
brake
fluid
reservoir
if
necessary
.

4
.
Bend
back
and
remove
collar
nut
lockplate
.

5
.
Hold
flange
steady
andremove
collar
lock
nut
(use

30mm
thin-walled
deep
socket
.)
See
Fig
.
5
.

Fig
.
5
.



Use
holding
tool
when
loosening
output
shaft
collar
nut
.

6
.
Remove
flange
.
If
necessary,
use
a
puller
.

7
.
Use
a
sea¡
puller
to
remove
seal
from
transmission
housing
.
See
Fig
.
6
.

8
.
Coat
new
sea¡
wíth
transmission
fluid
and
drive
into
po-
sition
until
it
is
flush
with
housing
.
See
Fig
.
7
.

TRANSMISSIONSERVICE

Fig
.
6
.



Puller
used
to
remove
transmission
seal
.

Fig
.
7
.



Output
shaftseal
being
installed
using
seal
driver
(BMW
spe-
cial
tool
no
.
232
300)
.

9
.
Reinstall
output
flange
(and
shims,
if
applicable)
to
out-

put
shaft
.

NOTE-

On
Getrag
S5D200G
and
S5D
250G
transmissions
BMW
recommends
heating
theoutputflange
to
about
176°F
(80°C)
to
aid
in
installation
.
This
canbe
done
by
placing
the
flange
in
hot
water
.

10
.
Coat
bearingsurface
ofcollar
nut
withsealer
and
install
nut
.
Tighten
collar
nut
in
two
stages
.
Insta¡¡
new
lock-
plate
.
Bend
tabs
into
flange
grooves
.

NOTE-

BMW
recommends
the
use
of
a
sealer
such
as
Loctite
®
242
when
installing
the
flange
collar
nut
to
prevent
oil
from
leaking
past
the
threads
.

11
.
Raise
transmission
and
reinstall
transmission
cross-

member
.

12
.
Install
driveshaft
using
new
nuts
.
See
260
Driveshaft
.

13
.
Check
transmission
oil
leve¡,
topping
up
asnecessary
.

Tightening
Torques

"
Transmission
crossmember
to
chassis

M8
...............
.
...
.
..
22-24
Nm
(16-17
ft-Ib)

M10
..............
.
..
...
..
.
...
42
Nm
(31
ft-Ib)

"
Transmission
outputflange
to
output
shaft



O



001202
2
Z
:Z
ZZZ~
%
_
j
Stage
I.................
..
.
..
190
Nm
(140
ft-Ib)

Stage
II
(after
loosening)
....
.
.
.
..
120
Nm
(89
ft-Ib)



Fi
g
.
9
.



Indent
at
oil
seal
housing
(1)
.
Punch
holes
in
seal
housing
at

Inputshaft
sea¡,
replacing

(transmission
removed)

Replacement
of
the
inputshaft
sea¡
requires
the
removal
of

thetransmission
from
the
vehicle
as
described
later
in
this
re-

pair
group
.

5
.
Lubricate
new
sea¡with
transmission
oil
and
drive
into

1
.
Remove
clutch
release
bearing
and
release
lever
from



placeusing
BMW
Special
Tool
no
.
23
2
430
or
equiva-

inside
bellhousing
.



lent
.

2
.
Remove
bolts
for
clutch
release-bearing
guide
sleeve,



6
.
Thoroughly
cleanguide
sleeve
mounting
bolts,
sealin

noting
bolt
lengths
.
Remove
sleeve
and
any
spacers



surfaces,
and
threads
in
case
.
Apply
sealer
(Loctite

(shims)
under
¡t
.
See
Fig
.
8
.



242
or
equivalent)
to
guide
sleeve
sealingsurface
and

bolts
.
Reinstall
guide
sleeve
and
spacer(s)
.

0011640

Fig
.
8
.



Clutch
release
bearing
guide
sleeve
bolts
.
(Getrag
transmis-

sion
shown)
.

3
.
With
transmission
on
aworkbench,
remove
input
shaft

sea¡
cover
from
inside
bel¡-housing
.

4
.
Locate
two
indents
in
seal
housing
.
Use
a
punch
or

scribe
to
punch
holes
in
housing
at
indents
.
Thread
two

sheetmetal
screws
into
holes
and
pulí
seal
out
using

screws
.
See
Fig
.
9
.

MANUAL
TRANSMISSION



230-
5

indents
anduse
sheetmetal
screw
(2)
to
pul¡
sea¡
from
trans-
mission
.

NOTE-

Use
care
not
to
scratch
or
damage
input
shaft
.
Use
a
protective
sleeve
or
tape
the
shaft
when
removing
and
installing
the
sea¡
.

Tightening
Torque

"
Guide
sleeveto
transmission

M6xl2
bolt
.......
...
.
.
.........
10
Nm
(89
in-lb)

TRANSMISSION
REMOVAL

AND
INSTALLATION

Removal
and
installation
of
the
transmission
is
best
accom-

plished
ona
lift
using
a
transmission
jack
.
The
engine
must
be

supported
from
above
using
appropriate
support
equipment
.

Thisallows
the
engine
to
pivot
on
its
mounts
to
access
theup-

perTorx-head
bolts
at
the
bellhousing
.

WARNING
-

"
Make
sure
thecar
is
stable
and
well
supported
at

all
times
.
Use
a
professional
automotive
lift
or
jack
stands
designed
for
the
purpose
.
A
floor
jack
is
not
adequate
support
.

"
The
removal
of
the
transmission
may
upset
the

balance
of
the
vehicle
ona
líft
.

TRANSMISSION
REMOVAL
AND
INSTALLATION

2
.
On
MS
270R/A4S
310R
transmissions
:
Remove
front



5
.
Installation
is
reverse
of
Rmoval
.
and
rear
oil
sump
mounting
bolts
andremove
sumps



"
Always
replace
sea¡
for
drain
plug
and
al¡
gasket(s)
andand
sump
gaskets
.



O-rings
.

"
Clean
sump
and
sump
magnet(s)
using
a
lint-free

NOTE-



cloth
.

The
MS
270
R/A4S
310
R
transmissions
may
be
fitted



"
On
MS
270R/A4S310R
transmissions
:
Use
new
bolts

with
ASE
(inch)
bolts
.



at
sump
and
tighten
bolts
in-line,
one
after
other
(do
nottighten
bolts
in
a
cross-wise
pattern)
.

3
.
On
A5S
310Z
transmission
:
Remove
oil
sump
mount-



"
On
MS
310Z
transmission,
be
sureto
instan
rounded

ing
bolts
and
brackets,
noting
position
of
brackets
.
Re-



sump
clamping
brackets
at
corners
of
sump
.

move



"
Fill
transmission
with
approved
fluid
.
sump
and
sump
gasket
.



"
Check
fluid
level
as
described
under
ATF
leve¡,

4
.
Remove
ATF
otra¡ner
mount¡ng
screws
and
remove



checking
.

strainer
together
with
gasket
orO-ring
.
See
Fig
.
4
or

Fig
.
5
.

Fig
.
4
.



A4S
270R/A4S310R
fluid
strainer
mounting
boits
(arrows)
.

Fig
.
5
.



A5S
310Z
fluid
strainer
mounting
boits
(arrows)
.

0013230

AUTOMATIC
TRANSMISSION



240-
3

NOTE-

Use
newsump
bolts
purchased
from
BMW
.
Alternative-
ly,
clean
old
bolts
and
coat
with
Loctite®
thread
locking
compound
or
equivalent

Automatic
Transmission
Fluid
Capacity
(refill
only)

"
MS
270R/A4S310R
Removal
of
large
sump
only
........
3
.0liters
(3.2
qt)
Removal
ofboth
sumps
...........
5
.0liters(5
.3
qt)

"
MS
310Z
..
..
..................
3
.3liters
(3.5
qt)

Tightening
Torques

"
ATF
drain
plug
to
ATF
sump

MS
270R/A4S
310R
..........
..
25
Nm
(18
ft-Ib)

MS
310Z(M10
plug)
..........
..
16
Nm
(12
ft-Ib)

"
ATF
fill
plug
to
ATF
sump

MS
270R/A4S
310R
..........
..
33
Nm
(24
ft-Ib)

MS
310Z(M30
plug)
.....
..
..
:.
100
Nm
(74
ft-Ib)

"
ATF
strainer
to
valve
body

MS
270R/A4S
310R
.....
..
.
...
.
20
Nm
(15
ft-Ib)

MS
310Z
..............
..
.
...
..
6
Nm
(53
in-lb)

"
ATF
sump
to
transmission

MS
270R/A4S
310R
(M6)
.
..
.
..
...
12
Nm
(9
ft-¡b)

MS
310Z
(M6)
..........
..
.
..
...
6
Nm
(53
in-¡b)

TRANSMISSION
SERVICE

240-
6



AUTOMATIC
TRANSMISSION

14
.
Remove
transmission
by
pulling
back
and
down
.
Lower

jack
to
allow
transmission
to
clear
vehicle
.



Tightening
Torques

"
ATF
drain
plug
to
ATF
sump

CA
UTION-



MS
270R/A4S
310R
....
..
....
.
..
25
Nm
(18
ft-Ib)

Do
not
allow
the
torque
converter
to
fati
off
the



ASS
310Z(M10
plug)
..
..
..
.
.
..
.
..
16
Nm
(12
ft-Ib)

transmission
inputshaft
.



"
ATF
fill
plug
to
ATF
sump

MS
270R/A4S
310R
..
..
....
..
..
.
33
Nm
(24
ft-Ib)

15
.
Installation
is
reverse
of
removal,
noting
the
following
:



MS
310Z(M30
plug)
......
.
.
..
.
.
100
Nm
(74
ft-Ib)

"Blowoutofcoolerlineswithlow-pressurecompressed



"
ATF
cooler
lines
(A4S
270R/A4S
310R)

air
and
flush
coolerwith
clean
ATF
twice
before
reat-



Coupling
nuts
............
.
.
..
..
.
20
Nm
(15
ft-Ib)

taching
lines
to
transmission
.



Hollow
bolts
.........
.
.....
..
..
.
37
Nm
(28
ft-Ib)

"
Reinforcing
cross
brace

CAUTION-



to
chassis
(M10)
.............
.
..
.
42
Nm
(31
ft-Ib)

"
Wear
safety
glasses
when
working
with
com-



"
Torque
converter

pressedair
.



to
driveplate
(M10)
.........
..
.
..
45
Nm
(33
ft-Ib)

"
Transmissionsupport
crossmember
to
chassis

"
Do
not
reuse
ATF
after
flushing
.



M8
......................
22-24
Nm
(16-17
ft-1b)

M10
................
.
....
..
.
..
42
Nm
(31
ft-Ib)

"
Install
new
sealing
washers
on
hollow
bolts
.



"
Transmissíon
to
engine
(Torx-head
with
washer)

"
Insta¡¡
new
O-rings
on
transmission
cooler
lines,
where



M8
......................
..
.
..
21
Nm
(15
ft-Ib)

applicable
.



M10
.....................
..
..
.
42
Nm
(31
ft-Ib)

"
Inspect
driveplate
for
cracks
or
elongatedholes
.
Re-



M12
................
.
....
..
.
..
72
Nm
(53ft-Ib)

place
if
necessary
.

"
Check
to
be
sure
torque
converter
is
seated
correctly

in
transmission
during
final
installation
.

"
When
mounting
transmission
to
engine,
the
three

mounting
tabs
on
torque
converter
must
be
aligned

with
indentations
on
driveplate
.
Use
an
alignment

dowel
to
line
up
bolt
holes,
if
necessary
.
"
Fill
transmission
with
clean
ATF
until
oil
leve¡
is
even
with
fill
hole
.
Then
check
fluid
leve¡
as
described
ear-
lier
.

"
Adjust
gearshift
mechanism
.
See
250
Gearshift
link-

age
.

NOTE-

Torx-head
mounting
bolts
shouldalwaysbe
used
with
washers
to
prevent
difficult
removal
.

TRANSMISSION
REMOVAL
AND
INSTALLATION