1994 BMW M3 light
[x] Cancel search: lightPage 221 of 759
230
Manual
Transmission
MANUAL
TRANSMISSION
230-1
GENERAL
...
.
............
.
.......
.
.
.
.
230-1
Output
shaft
sea¡,
replacing
(transmission
installed)
....
.
.....
.
.....
.230-4
TRANSMISSION
FLUID
SERVICE
.
.
.
.
.
.
.230-1
Inputshaft
sea¡,
replacing
Transmission
fluid
leve¡,
checking
...
.
...
.
.
230-2
(transmission
removed)
.
.
.
.
...
.
.
.
.....
.
230-5
Transmission
fluid,
replacing
.........
.
.
.
.
230-2
TRANSMISSION
REMOVAL
AND
TRANSMISSION
SERVICE
.
.
.....
.
.
.
.
.
.
230-2
INSTALLATION
.
.
.
.
.
.
.....
.
.
.
.
.
.
.
.....
.
230-5
Back-up
light
switch,
replacing
.
.
.
...
.
.
.
.
.
.
230-2
Transmission,
removing
and
installing
...
.
.
.
.
230-6
_
Selector
shaft
sea¡,
replacing
(transmission
installed)
.
.
.
.
.
.
.
.
.
.
.
...
.
.
230-3
TAB
a
.
Manual
Transmission
Gear
Ratios
.
.
.
.........
.230-1
GENERAL
TRANSMISSION
FLUID
SERVICE
This
repair
group
covers
external
transmission
service,
in-
The
manual
transmissions
installed
in
the
E36
models
are
cluding
removal
and
installation
of
thetransmission
unit
.
Inter-
normally
filled
with
automatic
transmission
fluid
(ATF),
al-
nal
transmission
repair
is
not
covered
.
Special
press
tools
and
though
alternative
lubricants
may
have
beenused
from
the
procedures
are
required
to
disassemble
and
service
the
inter-
factory,
depending
on
transmission
type
and
model
year
.
For
nal
geartrain
.
example,
transmissions
fitted
to
the
M3
models
are
normally
filled
with
a
"lifetime"
manual
transmission
fluid
(BMW
MTF
Manual
transmissions
used
are
based
on
engine
applica-
LT-1)
and
do
not
require
periodic
fluid
changes
.
tion
.
Consult
200
Transmission-General
for
transmission
application
information
.
Table
a
lists
gear
ratio
specifications
.
NOTE-
The
transmission
lubricant
type
can
be
found
ona
label
NOTE-
on
the
sideof
the
transmission
.
Consult
an
authorized
Do
not
rely
on
forged
casting
numbers
for
transmission
BMW
dealer
for
altemate
fluid
use
and
the
most-up-to-
code
identification
.
date
information
regarding
transmission
operating
fluids
.
Tablea
.
Manual
Transmission
Gear
Ratios
Transmission
1
Getrag
S5D
200
G
1
Getrag
SSD
250
G
1
ZF
S5D
310
Z
1
ZF
S5D
320
Z
Gear
Ratios
:
1st
4
.23
4
.23
4
.20
4
.20
2nd
2
.52
2
.52
2
.49
2
.49
3rd
1
.66
1
.66
1
.66
1
.664th
1
.22
1
.22
1
.24
1
.24
5th
1
.00
1
.00
1
.00
1
.00
reverse
4
.04
4
.04
3
.89
3
.89
TRANSMISSION
FLUID
SERVICE
Page 222 of 759
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
.
Page 224 of 759
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
.
Page 226 of 759
230-
6
MANUAL
TRANSMISSION
Transmission,
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
viii
.
2
.
Insta¡¡
enginesupportacrossengine
bay
.
Raise
engine
so
that
weight
of
engine
ís
supported
.
See
Fig
.
10
.
Fig
.
10
.
Engine
support
equipment
used
to
support
engine
from
above
before
removing
transmission
.
3
.
Raise
vehicle
to
gain
access
to
underside
of
car
.
4
.
Support
transmission
with
transmission
jack
.
lf
applica-
ble,
remove
reinforcing
cross
brace
from
belowen-
gine/transmission
.
5
.
Disconnect
harnesscon
nector
from
reverse
light
switch
on
transmission
.
6
.
Remove
completeexhaustsystem
and
heat
shield
.
See
180
Exhaust
System
.
NOTE-
Disconnect
oxygensensor
hamess
connector(s)be-
fore
lowering
exhaust
system
.
7
.
Remove
driveshaft
.
See260
Driveshaft
.
8
.
Disconnect
shift
rod
from
transmission
selectorshaft
.
See
Fig
.
11
.
9
.
Disconnect
shift
console
fromtop
of
transmission
.
See
250
Gearshift
Linkage
.
TRANSMISSION
REMOVAL
AND
INSTALLATION
Washers
Shift
Shift
rod
rod
retaining
clip
0
0
,
Fig
.
11
.
Shift
lever
to
transmission
connection
.
Shift
console
0012024
10
.
Unbolt
clutch
slave
cylinder
from
sideof
transmission
.
Do
not
disconnect
fluid
hose
.
Suspend
slavecylinder
from
chassis
using
stiff
wire
.
CAUTION-
Do
not
operate
clutch
pedal
with
slave
cylinder
re-
moved
from
transmission
.
11
.
Support
transmission
from
below
with
jack
.
Remove
rear
support
crossmember
from
transmission
.
See
Fig
.
12
.
Fig
.
12
.
Rear
transmission
crossmember
(arrow)
.
12
.
Lower
transmission/engine
assembly
until
it
rests
on
front
suspension
crossmember
.
CAUTION-
Tilting
the
engine
to
lower
thetransmission
can
lead
to
damage
to
various
componente
due
to
lackof
clearance
at
rear
of
engine
-On
cars
with
AST
remove
throttle
body
before
tilt-
ing
engine
.
-Remove
brace
fluid
reservoir
if
necessary
.
0013135
Page 227 of 759
13
.
Remove
transmission
mounting
bolts
(Torx-head)
.
Note
length
and
location
of
bolts
.
See
Fig
.
13
.
Fig
.
13
.
Transmission
mounting
bolts
.
0611642
CA
UTION-
Atno
time
should
the
weight
of
thetransmission
be
supported
by
the
transmission
inputshaft
.
NOTE
-
Washers
should
always
be
used
with
Torx-head
bolts
.
Installing
bolts
without
washers
will
make
them
difficult
to
loosen
.
MANUAL
TRANSMISSION
230-
7
Fig
.
14
.
Bellhousing
alignment
dowels
(arrows)
.
16
.
Install
driveshaft
and
preload
center
bearing
bracket
.
Usenew
nuts
when
mounting
driveshaft
to
transmis-
síon/flex
disc
and
final
drive
.
See
260
Driveshaft
.
17
.
Refill
transmission
with
appropriate
lubricant
before
starting
or
towingthe
car
.
See
Transmission
Fluid
Service
earlier
in
this
repair
group
.
14
.
Remove
transmission
by
pulling
backward
until
the
trans-
Tightening
Torques
mission
inputshaft
clears
the
clutch
disc
splines,
then
"
Reinforcing
cross
brace
pulí
downwards
.
Lower
jack
andremove
transmission
.
to
chassis
(M10)
.
...
.............
42
Nm
(31
ft-Ib)
"
Rubber
mount
to
transmission
15
.
Installation
is
reverse
of
removal,
keeping
in
mind
the
or
bracket
nut
(M8)
.
...
.
...
.......
21
Nm
(16
ft-Ib)
following
:
"
Slave
cylinder
to
transmission
......
22
Nm
(16
ft-Ib)
"
When
installing
exchange
transmission,
transfer
parts
"
Transmission
crossmember
to
chassis
from
old
unit
to
exchange
unit
M8
...............
.
.
...
..
22-24
Nm
(16-17
ft-Ib)
"
Thoroughly
clean
inputshaft
and
clutch
disc
splines
.
M10
..............
.
..
..
.......
42
Nm
(31
ft-Ib)
Lightly
lubrícate
transmission
inputshaft
before
in-
"
Transmission
to
engine
(Torx-head)
stalling
.-
M8
..
..................
..
.
..
..
22
Nm
(16
ft-Ib)
"
Be
sure
bellhousing
dowels
are
correctly
located
.
See
M10
.
.................
...
.
..
..
43
Nm
(32
ft-Ib)
Fig
.
14
.
M12
.
..................
..
.
..
..
72
Nm
(53
ft-Ib)
"
Center
rear
of
transmission
in
driveshaft
tunnel
before
"
Transmission
drain/fill
plugs
.
..
.
..
..
50
Nm
(37
ft-Ib)
tightening
transmission
support
bracket
.
TRANSMISSION
REMOVAL
AND
INSTALLATION
Page 232 of 759
240-
4
AUTOMATIC
TRANSMISSION
TRANSMISSION
REMOVALAND
INSTALLATION
Removal
and
installation
of
thetransmission
is
best
accom-
plished
on
a
lift
using
a
transmission
jack
.
Use
caution
and
safe
workshop
practices
when
working
beneath
car
and
low-
ering
transmission
.
WARNING
-
To
lift
the
vehicle
safely,
see010
Fundamentals
for
the
Do-it-Yourself
Owner
.
CAUTION-
"
Be
sure
the
vehicle
is
properly
supported
.
The
removal
of
the
transmission
may
upset
the
bal-
ance
of
the
vehicle
on
a
lift
.
"
Tilting
the
engine
to
remove
the
transmission
can
lead
to
damage
to
various
components
due
to
lack
of
clearance
.
-On
carswith
AST
remove
throttle
body
.
-Remove
brake
fluid
reservoir
if
necessary
.
Torx-head
bolts
are
used
to
mount
thetransmission
to
the
bellhousing
.
Be
sure
to
have
appropriate
tools
on
hand
before
starting
thejob
.
2
.
Install
engine
support
across
engine
bay
.
Raise
and
safely
support
vehicle
.
See
Fig
.
6
.
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
slightty
and
the
jack
may
shift
.
CAUTION-
Removal
of
transmission
will
cause
engine
to
tip
unlessengine
support
is
used
.
TRANSMISSION
REMOVAL
AND
INSTALLATION
Fig
.
6
.
Engine
support
equipment
used
to
support
engine
from
above
before
removing
transmission
.
3
.
Raise
vehicle
to
gain
access
to
underside
of
car
.
4
.
Drain
ATF
from
transmission
as
described
earlier
.
5
.
Disconnect
oxygen
sensor
harness
.
Remove
exhaust
system,
and
exhaust
heat
shield
.
See
180
Exhaust
System
.
Transmission,
removing
and
installing
6
.
Remove
driveshaft
.
See
260
Driveshaft
.
1
.
Disconnect
negative
(-)
cable
from
battery
.
7
.
With
selector
lever
in
Park,
disconnect
shift
selector
le-
ver
cable
from
lever
and
remove
cable
bracket
.
Hold
CA
UTION-
linkage
clamping
bolt
stationary
when
loosening
Prior
to
disconnectiog
the
battery,
read
the
battery
clamping
nut
.
See
Fig
.
7
.
disconnection
cautions
given
at
the
front
of
this
manual
on
page
vi¡¡
.
Fig
.
7
.
Selector
lever
cable
clamping
nut
(A)
.
Loosen
cable
clamping
nut
(B)
and
remove
cable
from
bracket
.
Always
counterholdclamping
bolt
when
loosening
nut
.
Page 237 of 759
2
.
Install
rubber
grommet
with
arrow
pointing
forward
.
In-
AUTOMATic
TRANSMISSION
stall
shift
rod
and
shift
boot
.
GEARSHIFT
NOTE-
Install
rubbergrommet
correctly
so
that
is
seals
outwa-
ter
.
4
.
Install
driveshaft
and
heat
shield
.
See
260
Driveshaft
.
Manual
valveleven
(at
transmission)
Fig
.
6
.
Automatic
transmission
gearshift
assembfy
.
Shift
cable
GEARSHIFT
LINKAGE
250-
3
The
automatic
transmission
shift
mechanism
is
shown
in
Fig
.
6
.
Use
the
illustration
as
a
guide
when
servícing
the
gear-
shift
mechanism,
including
shift
cable
replacement
.
3
.
Connect
shift
rod
to
shift
lever
.
Install
transmission
crossmember
.
Lift
transmission
and
tighten
crossmem-
Gearshift
mechanism,
adjusting
ber
bolts
.
(automatictransmission)
NOTE-
1
.
Position
selector
lever
in
Park
.
Beforeconnecting
the
shift
rod
to
the
lever,
be
sure
the
2
.
Raise
vehicle
to
gain
access
to
shift
linkage
.
gearshift
leven
is
facing
the
correct
way
as
illustrated
in
Fig
.
1
.
WARNING
-
Make
sure
thecan
is
stable
and
well
supported
at
all
times
.
Use
a
professional
automotive
lift
or
jack
stands
designed
for
the
purpose
.
5
.
Reinstall
exhaust
system
.
See
180
Exhaust
System
.
Connect
oxygen
sensor
harness
connectors
.
3
.
Loosen
selector
cable
clamping
nut
.
See
Fig
.
7
.
6
.
Lower
vehicle
.
Insta¡¡
shift
boot
cover
.
Push
shift
knob
4
.
Push
shift
lever
forwardtoward
engine(Park
position)
onto
lever
.
while
applying
light
pressure
on
cable
end
.
Tighten
ca-
ble
clamping
nut
.
Tightening
Torques
NOTE-
"
Driveshaft
to
final
drive
Do
not
overtighten
the
nut
so
that
it
twists
the
cable
.
flange
(with
U-joint)
.
..
.
.....
.
.
See
250
Driveshaft
"
Flex-disc
to
driveshaft
or
transmission
flange
...
.
.......
See
250
Driveshaft
Tightening
Torque
"
Transmission
crossmember
"
Shift
cable
clamping
nut
.......
10-12
Nm
(75-9
ft-Ib)
to
body
(M8)
.
.
.
...
..............
21
Nm
(16
ft-Ib)
/S
r\
1
1
Gear
position/
neutral
safetyswitch
Automatic
shilo
solenoid
id
AUTOMATIC
TRANSMISSION
GEARSHIFT
Page 245 of 759
Fig
.
6
.
Preload
center
bearing
toward
front
4-6
mm
(arrow)
.
5331
5
.
Tightenthreadedsleeveondriveshafttopropertorque
.
6
.
Insta¡¡
heat
shield
and
heat
shield
crossmember
.
Tightening
Torques
"
Driveshaftcenter
mount
to
body
.
.
..
21
Nm
(16
ft-Ib)
"
Driveshaft
clamping
sleeve
.....
.
.
.
10
Nm
(89
in-lb)
"
Driveshaft
to
final
drive
flange
With
CV
joint
(M8)
............
...
32
Nm
(23
ft-Ib)
Wth
U-joint
(M10
ribbed
nut)
....
...
80
Nm
(59
ft-Ib)
With
U-joint
(M10
compressed
nut)
..
60
Nm
(44
ft-Ib)
"
Flex-disc
to
driveshaft
or
transmissionflange
M10
(8.8
grade)
.........
.
....
..
.
48
Nm
(35
ft-Ib)
M10
(10
.9
grade)
........
.
....
...
64
Nm
(47
ft-Ib)
M12
(8.8
grade)
........
.....
..
.
.
81
Nm
(60
ft-Ib)
M12
(10
.9
grade)
.
.
....
......
...
100
Nm
(74
ft-Ib)
M12
(10
.9
grade)
(M3
models)
..
.
.
.
115
Nm
(85
ft-Ib)
"
Transmission
crossmember
to
body
(M8)
.
....
...........
....
21
Nm
(16
ft-Ib)
NOTE-
Bolt
grade
is
markedon
the
bolt
head
.
When
replacing
bolts,
only
use
bolts
of
the
same
strength
and
hardnessas
the
originalsinstalled
.
Flex-disc,
replacing
The
flex-disc
between
the
front
section
of
the
driveshaft
and
theoutputflange
of
the
transmission
should
be
checked
for
cracks,
tears,
missing
pieces,
or
distortion
.
Check
for
worn
bolt
hole
bores
in
theflange
.
1
.
Remove
driveshaft
as
described
in
Driveshaft,
remov-
ing
.
NOTE-
¡t
is
possible
to
only
partially
remove
the
driveshaft,
leaving
it
connected
to
the
final
drive
.
The
driveshaft
canbe
tilted
down
in
thecenter
and
slidoff
the
trans-
mission
flange
once
the
clamping
sleeve
is
loosened
and
the
center
bearing
bracket
is
unbolted
.
Suspend
the
driveshaft
using
stiff
wire
in
as
close
to
the
installed
position
as
possible
.
If
the
driveshaft
hangs
unsupport-
ed,
the
rear
universal
joint
may
be
damaged
.
2
.
Unbolt
flex-dísc
from
driveshaft
.
DRIVESHAFT
260-
5
7
.
Install
exhaust
system
.
See
180
Exhaust
System
.
Connect
wiring
harness
to
oxygen
sensors
.
NOTE-
Removaland
installation
of
the
boltsmaybe
made
eas-
8
.
Road
test
vehicle
to
check
for
noiseor
vibration
.
ier
by
placing
a
large
hose
clamp
around
the
flex-disc,
and
tightening
the
clamp
slightlyto
compress
the
cou
WARNING
-
pling
.
"
Do
not
reuse
self-locking
nuts
.
These
nuts
aredesigned
to
beused
only
once
.
3
.
Insta¡¡
new
flex-disc
using
new
self-locking
nuts
.
Mold-
"
Avóid
stressing
the
flex-disc
when
torquing
the
ed
arrows
on
coupling
should
face
flange
arms
.
See
bolts
Do
this
holding
the
bolts
Fig
.
7
.
steady
and
.
uy
turning
the
nuts
on
theflange
side
.
5
:132
Fig
.
7
.
When
attaching
flex-disc,
molded
arrows
must
point
toward
flange
arms
.
DRIVESHAFT
SERVICE