1997 BMW 328i rear

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
.

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

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

AUTOMATIC
TRANSMISSION



240-1

240
Automatic
Transmission

GENERAL
.....
.
.
.
.
.
.
.
.
.
.
.
.
.
.........
.
240-1



TRANSMISSION
REMOVAL
AND

INSTALLATION
..................
.
.
.
.
.240-4
TRANSMISSION
SERVICE
.
.
.
.
.
.......
.
240-1



Transmission,
removing
and
installing
....
.
.
.240-4

ATF
leve¡,
checking
..
.
.
.
.
.
.
.
.
.
..........
240-1

ATF,
draining
and
filling
.
.
.
.
.
.
.
..........
240-2



TABLE

a
.
Automatic
Transmission
Gear
Ratios
.......
..
.
.
240-1

GENERAL



TRANSMISSION
SERVICE



lo

Automatic
transmissions
are
identified
by
code
letters



ATF
leve¡,
checking

foundon
a
data
plate
located
on
the
sideof
thetransmission

case,
behind
the
manual
valve
lever
.
See
200Transmis-



The
automatic
transmissions
installed
in
the
E36
models
sion-General
for
application
information
.
Forgear
ratio
spec-



are
normally
filled
with
Dexron
III
automatic
transmission
fluid

ifications,
see
Table
a
.



(ATF),
although
alternative
fluids
have
been
installed
from
the

factory,
depending
on
transmission
type
and
model
year
.

CAUTION-



Some
transmíssions
are
filled
with
a
special
BMW
"lifetime"

ATF
does
not
circulate
unless
the
engine
is
run-



automatic
transmission
fluid,
which
does
not
require
periodic

ning
.
When
towing
an
automafic
transmission
ve-



fluid
changes
.

hicle,
usea
flat-bed
truck
or
ralse
the
rear
wheels
off
the
ground
.



CAUTION-

Mixing
different
types
of
transmission
fluids
will

The
electronic
transmission
control
module
(TCM)
monitors



lead
to
transmission
failure
.

transmissionoperation
for
faults
and
alerts
the
driver
by
illumi-

nating
the
transmission
fault
indicator
on
the
instrument
pan-

el
.
On-board
diagnostic
codes
stored
in
the
TCM
mustbe



NOTE-

downloaded
and
interpreted
by
trained
technicians
using
spe-



The
transmission
lubricant
instafed
can
be
foundona

cial
BMW
diagnostic
equipment
.



type
plate
on
the
side
of
the
transmission
.
In
addition,
a
sticker
may
be
located
on
the
fluid
sump
indicatingthe
typeof
transmission
lubricant
used
.
Ifin
doubt,
con

NOTE-



sult
an
authorized
BMW
dealer
for
altemate
fluid
use

Internal
repairs
to
the
automatic
transmission
require



and
current
information
regardingtransmission
operat-
special
service
equipment
and
knowledge
.
If
it
is
deter-



ing
fluids
.

mined
thatinterna¡
service
is
required,
consult
en
au-

thorízedBMWdealerabouta
factoryreconditioned
unit



The
transmission
is
not
equipped
with
a
dipstick
.
Checking
or
a
transmission
rebuild
.



the
ATF
leve¡
requires
measuring
and
maintaining
a
specified

ATF
temperature
during
the
checking
procedure
.
The
check-

ing
temperature
is
not
fully
warm
orcold
(the
ATF
sump

should
be
approximately
warm
to
the
touch)
.

Table
a
.
Automatic
Transmission
Gear
Ratios

Transmission



MS
310R
(THM-R1)



MS
310R
(THM-Rl)



MS
310Z(5HP
18)



I



MS
270R
(THM-R1)
(1992-1993)(1993-on)

Gear
ratios
:
1st



2
.40



2
.86



3
.67



2
.86

2nd



1
.47



1
.62



2
.00



1
.62
3rd



1
.00



1
.00



1.41



1
.00
4th



0
.72



0
.72



1
.00



0
.72
5th



-



-



0
.74



-
Reverse



2
.00



2
.00



4
.10



2
.00

TRANSMISSIONSERVICE

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

GENERAL
.
.
.
.
.
.
.
.
.
................
.
.
.
250-1



AUTOMATIC
TRANSMISSION
GEARSHIFT
...
.
.........
.
.
.
.
.
.
.
.
.
.
.
.
.
.
250-3
MANUAL
TRANSMISSION



Gearshift
mechanism,
adjusting
GEARSHIFT
.
.
.
.
.
.
.
.....
.
..........
.
.
.
250-1



(automatictransmission)
..
.
.
.
.
.
.
.
.
.
...
.
.
250-3

Gearshift
lever,
removing



Gear
position/neutral
safety
switch,
replacing
(manual
transmission)
.
.
.
.
...
.
.
.
.......
250-1



(automatic
transmission)
..
.
.
.
.........
.
.
250-4

Gearshift
lever,
installing



Automatic
shiftlock,
checking
function
(manual
transmission)
.
.
.
.
.
.
.
.
.
.
.......
250-2



(automatic
transmission)
..
..
...
.
.
.
....
..
250-5

Shiftinterlock,
checking
function

(automatic
transmission)
.......
.
.
.
.....
.250-6

GENERAL

This
repair
group
covers
transmission
gearshift
and
linkage
service
.

Special
service
tools
are
required
for
some
of
the
proce-

dures
given
here
.
To
gain
access
to
the
complete
gearshift

mechanism
ít
is
necessary
to
remove
the
exhaust
system
and
the
driveshaft
as
described
in
180
Exhaust
System
and260
Driveshaft
.

MANUAL
TRANSMISSION
GEARSHIFT

Gearshift
lever,
removing

(manual
transmission)

The
manual
transmission
gearshift
linkage
is
shown
in
Fig
.1
.
Use
thisillustration
asaguide
when
removing
and
installing

the
linkage
.

1
.
Pull
straight
upon
shift
knob
lo
remove
it
from
shift
lever
.

NOTE
-

Removal
of
the
shift
knob
will
require
about
90
lbs
.
of
force
.

2
.
Pry
upon
rear
of
shift
boot
tounclip,
then
remove
boot
from
front
retainers
.

3
.
Raise
vehicle
togain
access
to
underside
of
vehicle
.

WARNING
-

Make
sure
thecar
is
stable
and
well
supported
at
afl
times
.
Use
a
professional
automotive
lift
orjackstands
designed
for
the
purpose
.
A
floor
jack
is
not

adequate
support
.

250
Gearshift
Linkage

GEARSHIFT
LINKAGE



250-1

Fig
.1
.



Manual
transmission
gearshift
linkage
.

4
.
Disconnect
oxygen
sensorharness
connectors
.
Re-

move
completeexhaust
system
.
See
180
Exhaust

System
.

MANUAL
TRANSMISSION
GEARSHIFT

250-2



GEARSHIFT
LINKAGE

5
.
Remove
driveshaft
.
See260
Driveshaft
.



9
.
Release
gearshift
lever
retaining
ring
from
below
by

turningspecial
tool
90°(
1
/4
turn)
counterclockwise
.
See

6
.
Support
transmission
with
transmission
jack
.
Remove



Fig
.
4
.

crossmember
from
rear
of
transmission
.
See
Fig
.
2
.

Fig
.
2
.



Rear
transmission
crossmember
(arrow)
.

7
.
Lower
rear
of
transmission
to
access
gearshift
linkage
.

CAUTION-

Tilting
the
engine
to
lower
thetransmission
can
lead
to
damage
to
various
componente
due
to
lackof
clearance
.
-On
cars
with
AST
remove
throttle
body
.
-Remove
brake
fluid
reservoir
if
necessary
.

0013135

8
.
Working
below
transmission,
disconnect
shift
rod
from

gearshift
lever
.
Note
washers
on
either
side
of
shift
rod

end
.
See
Fig
.
3
.

v

clip

Shift
rod

Fig
.
3
.



Pull
off
shift
rod
retaining
clip
in
direction
of
arrow
(t)
;
disen-
gage
shift
rod
from
gearshift
lever
(2)
.

MANUAL
TRANSMISSION
GEARSHIFT

BMW
Tool
No
.
25
1
110
orequivalent

Fig
.
4
.



Shift
lever
retaining
ring
being
removed
using
BMW
special

tool
25
1
110
.

10
.
Raise
transmission
and
temporarily
instan
transmission

crossmember
.

11
.
Lower
vehicle
.
Working
from
inside
passengercom-

partment,
pull
upon
gearshift
lever
to
remove
it
togeth-

erwith
retaining
ring
and
rubber
grommet
.

Gearshift
lever,
installing

(manual
transmission)

6532

1
.
Instan
shift
lever,
aligninglocking
tabs
with
openings
in

shift
console
.
Press
down
on
retaining
ring
until
it
clicks
into
place
.
See
Fig
.
5
.

\
Retaining

Fig
.
5
.



Shift
lever
retaining
ring
.
Fit
plastic
tabs
into
slots
of
shift
con-
sole(arrows)
.

DRIVESHAFT
SERVICE
.
...
.
.
.
...
.
..
.
.
.260-3

Driveshaft,
aligning
...............
.
...
.
.
260-3

Driveshaft,
removing
..............
.
.
.
.
.
.
260-4

260
Driveshaft

DRIVESHAFT
260-1

GENERAL
.
.
.
.
.
.
.
.....
.
.
.
........
.
...
.
260-1



Driveshaft,
installing
.
....
.
..
.
............
260-4

Flex-disc,
replacing
.....
.
.
.
.............
260-5
TROUBLESHOOTING
..
.
.
.
...
.
.........
260-1



Center
bearing
assembly,
replacing
.
......
.260-6
Frontcentering
guide,
replacing
..
.
.......
.
260-7

TABLE

a
.
Driveshaft
Troubleshooting
.
.
...
......
.
....
..
.
.
260-2

GENERAL



NOTE-

For
rear
drive
axlerepair
information,
see330
Rear
The
two-piece
driveshaft
is
joined
in
thecenter
by
a
sliding



Suspension
.
splined
coupling
.
This
coupling
compensates
for
fore
and
aft
movement
of
the
drive
line
.
The
driveshaft
ís
connected
to
the



Driveshaft
noise
or
vibration
may
be
caused
by
worn
or
transmission
bya
rubber
flex-disc
and
to
the
final
drive
by
a



damaged
components
.
Check
the
universal
joints
for
play
.
universal
joint
.
It
is
supported
in
the
micidle
by
a
center
support



With
the
driveshaft
installed,
pull
and
twist
the
driveshaft
while
bearing
.
The
bearing
is
mounted
in
rubber
to
isolate
vibration
.



watching
the
joint
.
The
BMW
specificationfor
play
is
very
See
Fig
.
1
.



small,
so
almost
any
noticeableplay
could
indicate
a
problem
.

TROU
BLESHOOTING



Check
thetorque
of
thefasteners
at
the
flange
connections
.
Check
therubber
of
the
flex-disc
and
center
bearing
for
dete

The
source
of
driveline
vibrations
and
noise
can
be
difficult



rioration
or
tearíng
and
check
for
preload
at
the
center
bearing

to
pinpoint
.
Engine,
transmission,
rear
axle,
or
wheel
vibra-



with
a
visual
inspection
.
Check
the
driveshaft
for
broken
or

tions
can
be
transmitted
through
the
driveshaft
to
the
car



missing
balance
weights
.
The
weights
are
welded
tabs
on
the

body
.
Noises
from
the
rear
of
thecar
may
be
caused
by
final



driveshaft
tubes
.
In
addition
to
inspecting
for
faulty
driveshaft

drive
problems,
orby
faulty
wheel
bearings,
drive
axies,
or



parts,
the
installed
angles
of
the
driveshaft
should
also
be

evenworn
or
improperly
inflatedtires
.



considered
.

Flex-disc

Center
universal
joint

Fig
.1
.



Driveshaft
and
final
drive
assembly
.

Rear
section
Splined
shaft



of
driveshaft
Center
support



`



Clamping
sleeve
bearíng
assembly

Differential
inputflange

0013110

TROUBLESHOOTING