Getrag BMW 325i 1993 E36 Workshop Manual

Page 213 of 759


GENERAL
..
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......
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.....
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...
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.
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.
.
200-1

Manual
Transmission
.
.
.....
.
.
.
.'
.
.
.
.
.
.
.
.
200-1

Automatic
Transmission
.........
.
.
.
.
.
.
.
.
200-1

Transmission
ID
Codes
..........
.
.
.
.
.
.
.
.
200-2

GENERAL

E36
models
areequipped
with
a
longitudinal
drivetrain
.
The

transmission
is
bolted
directly
to
the
rear
of
the
engine
.
A

driveshaft
connects
the
output
shaft
of
thetransmission
to
the

final
drive
.
The
final
drive
is
mounted
lo
the
rear
suspension

and
the
body
.
Individual
drive
axles
with
integrated
constant

velocity
joints
transfer
rotational
power
to
the
rear
wheels
.

Manual
Transmission

Due
to
different
power
characteristics
and
performance
re-

quirements,
four
different
manual
transmissions
are
used
in

the
models
coveredby
this
manual
.
Manual
transmission
ap-

plications
are
given
in
Table
a
.

TRANSMISSION-GENERAL
200-1

200
Transmission-General

TABLES

a
.
Manual
Transmission
Applications
..
...........
200-1
b
.
Automatic
Transmission
Applications
...........
200-1

Fig
.
1
.



ZF-manufacturedmanual
transmission
.

For
transmission
gear
ratio
information
and
repair
informa-

tion,
see
230
Manual
Transmission
.



Automatic
Transmission

E36
carswith
standard
transmission
use
a
single-disc
clutch
with
dual-mass
flywheel
.
For
further
information,
see
210
Clutch
.

Table
a
.
Manual
Transmission
Applications

Model
Year
Engine
Transmission
318ifisfC



1992-1995



M42



Getrag
S5D
200
G'

1996-1998



M44



Getrag
S5D
250
G

323is/iC



1998



M52



Getrag
S5D
250
G

325ifsriC



1992-1995



M50



Getrag
S5D
250
G

3281/isfC



1996-1998



M52



ZF
S5D320
Z

M3



1995



S50US



ZF
S5D310
Z

1996-1998



S52US



ZF
S5D320
Z

'The
1992
M42
engine
may
be
fitted
witheither
the
Getrag
SSD
200
G
trans-
mission
or
S5D
250
Getrag
.
The
S5D
200G
was
discontinued
in
production
in
as
of
9/92
.
Thistransmission
is
interchangeable
with
Getrag
S5D
250
G
.

Four
different
automatic
transmissions
are
used,
depend-

ing
on
model
and
model
year
and/or
production
date
.
All
of
the

automatic
transmissions
are
electrohydraulically
controlled

with
either
four
or
five
forward
speeds
.
Automatic
transmis-

sion
applications
are
given
in
Table
b
.

For
automatic
transmission
repair
information,
see
240Au-

tomatic
Transmission
.

Table
b
.
Automatic
Transmission
Applications

Model
1
Year
1
Engine
1
Transmission

318i1is/1C



1992-1995
~
M42
323isfiC



1998



M52



A4S
310
R
3251/is/1C
1992-1995
M50

3181/isfC



11996-1998



M44



A4S
270
R
328i/is/1C
1996-1998
M52

M3



1996-1998



S50US



I
A5S
310
Z
S52US

GENERAL

Page 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 225 of 759


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