automatic transmission BMW 325i 1994 E36 Owner's Manual
[x] Cancel search | Manufacturer: BMW, Model Year: 1994, Model line: 325i, Model: BMW 325i 1994 E36Pages: 759
Page 179 of 759
Table
j.
ECM
Pin
Assignment-Bosch
DME
M3
.3
.1
Pin
~
Signal
1
Componentffunction
1
signal
FUEL
INJECTION
130-
33
45
ground
Ignition
circuit
shield
Ground
shieldfor
ignition
circuit
monitoring
46
output
Fuel
consumption
(KVA
signal)
To
instrument
cluster
47
output
Crankshaft
rpm
Engine
speed
(TD)
signal
to
instrument
cluster
48
output
A/C
compressor
control
A/C
compressor
relay
terminal
85
49
vacant
-
-
50
output
Ignition
coil
control,
cyl
.
1
Primary
signal,
ignition
coil
1
51
output
Ignition
coil
control,
cyl
.
2
Primary
signal,
ignition
coil
2
52
output
Ignition
coil
control,
cyl
.
3
Primary
signal,
ignition
coil
3
53
vacant
-
-
54
input
Power
supply
Battery
voltagefrom
main
relay
(terminal
87a)
55
ground
Ground
Ground
for
ignition
control
56
input
Power
supply
(terminal15)
Batteryvoltage
with
key
on
or
engine
running
57
input
Ignition
timing
intervention
From
A/T
control
module
58
vacant
-
-
59
output
Throttleposition
sensor
(TPS)
Voltage
supply
to
TPS
(5
VDC)
60
input
Programming
voltage
Data
link
connector
61
vacant
-
-
62
vacant
-
-
63
vacant
-
-
64
input
A/C
on
signal
From
integrated
climate
control
module
65
input
A/C
pressure
signal
From
integrated
climate
control
module
via
A/C
pressure
switch
66
input
On-board
computer
Drive-away
protection
enable
(starter
immobilization
relay)
67
vacant
-
-
68
vacant
-
-
69
input
Knock
sensor
#2
(cyl
.
4,5,
6)
Knock
sensor
#2
signal
70
input
Knock
sensor
#1
(cyl
.
1,2,
3)
Knock
sensor
#1
signal
71
ground
Ground
Ground
for
knock
sensors
and
shields
72
vacant
-
-
73
input
Throttleposition
sensor
(TPS)
Throttleposition
signal
74
vacant
-
75
vacant
-
-
76
vacant
-
77
input
Intakeair
temperatura
Intakeair
temperatura
sensor
(0-5
VDC)
78
input
Engine
coolant
temperature
Engine
coolant
temperature
sensor
(0-5
VDC)
79
vacant
-
80
vacant
-
-
81
input
Automatic
transmission
gear
positionlneutral
A/T
parkor
neutral
position
signal
safetyswitch
82
vacant
-
-
83
vacant
-
-
84
vacant
-
-
85
vacant
-
-
86
vacant
-
-
87
input
Diagnostic
connector
(RxD)
Diagnostic
RxD
(receive)
signal
to
pin
15
in
Data
link
connector
88
input/output
Diagnostic
connector
(TxD)
Diagnostic
TxD
(transmit)
signal
to
pin
20
in
Data
link
connector
ECM
PIN
ASSIGNMENTS
Page 183 of 759
Table
I
.
ECM
Pin
Assignment-Siemens
DME
MS
41
.1
(continued)
Pin
I
Signal
I
Component/function
1
Signal
FUEL
INJECTION
130-
37
47
-
48
input
Crankshaft
position
sensor
(Hall
effect)
Crankshaft
position
sensor
control
49
input
Power
supply
(terminal
15)
Batteryvoltage
with
key
onor
engine
running
50
output
Solenoid
valve
(running
losses)
Running
losses
51
output
Carbon
canister
valve
Carbon
canister
valve
control
52vacant
-
53
output
Idle
speed
control
valve
Pulsed
ground-close
signal
(seealsopin29)
54
input
Power
supply
Battery
voltagefrom
main
relay
(terminal
87)
55
vacant
-
56
-
57
input
Knock
sensor
(cyl
.
1-3)
Knock
sensor
input
Signal
58
output
Knock
sensor
(cyl
.
1-3)
Knock
sensor
control
59
input
Knock
sensor
(cyl
.
4-6)
Knock
sensor
input
Signal
60
input/output
Diagnostic
connector
(TxD)
Diagnostic
TxD
(transmit)
signal
to
pin
18
in
Data
link
connector
61
output
Oxygen
sensor
heater
(monitoring
sensor)
Oxygen
sensor
heater
ground
62
output
Secondary
air
injection
Secondary
air
injection
control
valve
63
output
Knock
sensor
(cyl
.
4-6)
Knock
sensor
control
64
input
Camshaft
position/rpm
sensor
Camshaft
position/rpm
sensor
control
65
input
Camshaft
position/rpm
sensor
Camshaft
position/rpm
sensor
control
66
-
67
output
Oxygen
sensor
Oxygen
sensor
reference
voltage
68
output
Evaporative
purge
valve
control
Pulsed
ground
with
engine
at
normal
temperature
and
varyingengine
load
69
output
Fuel
pump
relay
control
Fuel
pump
relay
switches
with
engine
runningorcranking
(crankshaft
position
signal
must
be
present
for
relay
switchover)
70
vacant
-
-
71
output
Oxygen
sensor
heater
(regulating
sensor)
Oxygen
sensor
heater
ground
72
output
Oxygen
sensor
(monitoring
sensor)
Oxygen
sensor
referencevoltage
73
input
Main
relay
control
Main
relay
activation
(terminal
85)
74
output
A/C
compressor
control
A/C
compressor
relay
control
75
input
Oxygen
sensor
Oxygen
sensor
signal
76
not
used
-
-
77
input
Oxygen
sensor
(regulating
sensor)
Oxygen
sensor
signal
78
input
Oxygen
sensor
(monitoring
sensor)
Oxygen
sensor
signal
79
output
Oxygen
sensor
(regulating
sensor)
Oxygen
sensor
referencevoltage
80
Traction
control
AST
module
81
Traction
control
AST
module
82
Traction
control
AST
module
83
output
Crankshaft
position
sensor
(Hall
effect)
Crankshaft
position
sensor
control
84
vacant
-
-
85
output
Automatic
transmission
Automatic
transmission
control
module
86
input
Automatic
transmission
Automatic
transmissíon
control
module
87
input
Power
supply
Battery
voltage
from
main
relay
(terminal
87)
88
input/output
Diagnostic
connector
(TxD)
Diagnostic
TxD
(transmit)
signal
to
pin
17
in
Data
link
connector
ECM
PIN
ASSIGNMENTS
Page 195 of 759
170
Radiator
and
Cooling
System
GENERAL
.
.
.....
.
...
.
.
.
.
.
....
.
.
.
.
.
.
.
.170-1
Coolant
Pump
and
Thermostat
........
.
.
.
.
170-1
Radiator
and
Expansion
Tank
.........
.
...
170-1
Cooling
Fans
.
....
.
.
.
.
.
.
.
.
.
.....
.
......
170-2
Warnings
and
Cautions
.
.
.
.
.
.
.
.
.
.
.
.
...
.
.
.
170-2
TROUBLESHOOTING
...
.
.
.
...
.
.
.
.
.
.
.
.
.170-2
Cooling
System
Pressure
Test
...
.
.
.
.
.
.
.
.
.
170-3
Thermostat
Quick
Check
.
.
.
.
...
.
.
.
.
.
.
.
.
.
170-3
Temperature
Gauge
Quick
Check
.
.
.
.
.
.
.
.
.
170-3
Cooling
fan,
testing
.
.
.
.
........
.
.
.
.
.
.
.
.
.
170-4
COOLING
SYSTEM
SERVICE
.
.
.
.
.
.
.
.
.
.
170-5
Coolant,draining
and
filling
.
.
......
.
.
.
.
.
..
170-5
Cooling
system,
bleeding
(radiator
with
integral
expansion
tank)
.....
170-6
GENERAL
This
section
covers
repair
and
troubleshooting
information
for
the
engine
cooling
system
.
For
heater
core
and
related
heating
and
air
conditioning
components,
see640
Heating
and
Air
Conditioning
.
Coolant
Pump
and
Thermostat
A
centrifuga¡-type
coolant
pump
is
mounted
to
the
front
of
the
engíne
.
The
belt-driven
pump
circulates
coolant
through
the
system
whenever
the
engíne
is
running
.
A
thermostat
con-
trols
the
flow
of
coolant
into
the
radiator
.
When
the
engíne
is
cold
the
thermostat
is
closed
so
coolant
bypasses
the
radiator,
recirculating
from
the
engíne
directly
back
to
the
pump
.
When
the
engíne
reaches
operating
tem-
perature,
the
thermostat
opens
and
coolant
circulates
through
the
whole
system
including
the
radiator
.
Radiator
and
Expansion
Tank
The
radiator
is
a
crossflow
design
.
A
translucent
expansion
tank
provides
for
coolant
expansion
at
higher
temperatures
and
easy
monitoringof
the
coolant
leve¡
.
On
4-cylinder
modeis,
the
radiator
expansion
tank
is
integral
with
the
radiator
.
See
Fig
.
1
.
RADIATOR
AND
COOLING
SYSTEM
170-1
Belt-driven
cooling
fan,
replacing
.
.......
.
.
.
170-7
Electric
cooling
fan,
replacing
.
.
.
.....
.
.
.
.
.
170-8
Auxiliary
cooling
fan,
replacing
.
.
.....
.
.
.
.
.
170-8
Thermostat,
replacing
.
.
.
.
.
.
.
.
.
.....
.
.
.
.
.
170-9
Coolant
pump,
replacing
..........
.
.
.
.
.
.
170-10
RADIATOR
SERVICE
.....
.
......
.
.
.
.
.
.
170-11
Radiator,
removing
and
installing
....
.
.
.
.
.
.
170-11
TABLES
a
.
Coolant
Temperature
Sensor
Wire
Colors
...
.
..
.
.
170-3b
.
Auxiliary
Cooling
Fan
Switching
Temperatures
.:.
.170-4
c
.
Auxiliary
Cooling
Fan
Temperature
Switch
Tests
..
..
.
...
...
.
.............
.
..
.
.
170-5d
.
Cooling
System
Capacities
..............
..
.
.
.
170-6
A
.
Expansion
tank
C
.
Dualtemperature
fan
switch
B
.
Radiator
drain
screw
Fig
.
1
.
Radiator
assembly
with
integral
expansion
tank
(4-cylinder
engine)
.
On
6-cylinder
models,
a
standalone
expansion
tank
is
used
.
On
cars
with
automatic
transmission,
ATF
is
circulated
through
an
additional
heat
exchanger
(ATF
cooler)
.
GENERAL
Page 205 of 759
Fig
.
19
.
Coolant
pump
being
removed
.
Thread
two
M6
bolts
(arrows)
in
evenly
to
withdraw
pump
.
(Thermostat
and
hoseshavebeen
removed
tor
visual
access
.)
8
.
Installation
is
reverse
of
removal
.
"
Be
sure
to
replace
O-ring
and
gaskets
.
"
Coat
O-ring
with
lubricant
during
installation
.
Tightening
Torque
"
Coolant
pump
to
timing
chaincover
M6
...
.
...................
..
.
.
10
Nm
(89
in-lb)
M8
.
..
.
....................
.
.
.
22
Nm
(17
ft-Ib)
"
Coolant
pump
pulley
to
coolant
pump
.................
10
Nm
(89
in-lb)
RADIATOR
SERVICE
Radiator,
removing
and
installing
1
.
Drain
radiator
as
described
earlier
.
WARNING
-
Allow
cooling
system
to
cool
before
opening
ordraining
system
.
2
.
Remove
primary
cooling
fan
(belt-driven
or
electric)
as
described
earlier
.
3
.
Disconnect
coolingfan
and
leve¡
sensor
harness
con-
nectors
from
bottom
of
radiator,
where
applicable
4
.
Disconnect
harness
connector
from
auxiliary
fandual
temperature
switch
.
See
Fig
.
20
.
5
.
Disconnect
all
coolant
hoses
from
radiator
.
RADIATOR
AND
COOLING
SYSTEM
170-11
0012500
Fig
.
20
.
Cooling
fan
dual
temperatura
switch
(arrow)
on
right
sido
of
radiator
.
6
.
Where
applicable,
disconnectautomatic
transmission
fluid
(ATF)
cooler
lines
from
radiator
.
See
Fig
.
21
.
Fig
.
21
.
Automatic
transmission
fluid
(ATF)
linos
at
radiator
.
7
.
Carefully
pryout
radiator
retaining
clips
from
top
of
ra-
diator
.
See
Fig
.
22
.
8
.
Pul¡
radiator
up
and
out
of
car
.
NOTE-
The
radiator
rests
ontwo
rubber
mounts
.
Check
that
the
mounts
do
not
stick
to
the
bottomof
the
radiator
.
RADIATOR
SERVICE
Page 209 of 759
1
.
Gaskets
5
.
Front
pipe
with
catalytic
con-
8
.
Flange
2
.
Exhaust
manifold
verter
9
.
Bolt
(M8x55)
3
.
Exhaust
manifold
6
.
Oxygen
sensor
(monitoring)
10
.
Rubber
mounting
ring
(48mm)
4
.
Oxygen
sensor
(regulating)
7
.
Nut
(M8)
11
.
Rear
pipewith
mufflers
Fig
.
4
.
Exhaust
systemon
1996-1998
6-cylinder
engines
.
M3
(S50US)
exhaust
system
shown
.
Exhaust
system,
removing
and
installing
NOTE-
The
automatic
transmission
will
be
supported
by
the
This
section
covers
removing
the
exhaust
system
as
a
com-
rear
crossmember
once
the
brace
is
removed
.
plete
unit
.
Once
the
system
is
removed
from
the
car,
individual
pipes
and
mufflers
can
be
more
easily
replaced
.
1.
With
exhaust
system
fully
cold,raise
and
support
car
for
access
to
exhaustsystem
.
WARNING
-
Do
not
work
undera
lifted
car
unless
it
is
solidly
supported
on
jack
stands
designed
for
that
pur-
pose
.
Never
work
under
a
car
that
is
supported
solely
by
a
jack
.
2
.
Disconnect
oxygen
sensor
connector(s)
.
NOTE
-
On
1996
and
later
cars
with
multiple
oxygen
sensors,
label
the
oxygen
sensor
connectorsbefore
disconnect-
ing
.
4
.
Where
applicable,
remove
support
brace
from
trans-
mission
.
See
Fig
.
5
.
EXHAUSTSYSTEM
180-
3
3
.
Loosen
andremove
bolts
holding
front
exhaust
pipes
to
exhaust
manifolds
.
transmission
.
See
Fig
.
6
.
0011940
Fig
.
5
.
Crossbracemounting
bolts
(arrows)
.
5
.
Disconnect
exhaust
support
bracket
assembly
from
6
.
Supportexhaustsystem
from
below
and
dísconnect
rubbersupports/rubber
rings
from
exhaust
system
.
Re-
move
exhaust
system
from
below
.
See
Fig
.
7
.
EXHAUST
SYSTEM
REPLACEMENT
Page 213 of 759
GENERAL
..
.
......
.
.
.
.....
.
...
.
.
.
.
.
.
.
.
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 214 of 759
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)
Page 215 of 759
GENERAL
..
.
.
.
.
.
.
.
.
.
.
.
.
.
......
.
......
210-1
CLUTCH
MECHANICAL
.
.
.
.
.
...
.
.....
.
.
210-3
CLUTCH
HYDRAULICS
.
.
.
.............
210-1
Clutch,
removing
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
...
.
.
.
.
210-4
Clutch,inspecting
and
installing
.
.
.
.
.
.
.
.
.
.
.
.210-5Clutch
hydraulic
system,
Transmission
pilot
bearing,replacing
.
.
.
.
...
210-6
bleeding
and
flushing
.
.
.
.
.
.......
.
.....
210-2
Clutch
master
cylinder,
replacing
..
.
.
.
.
.
...
210-2
Table
Clutch
slave
cylinder,
replacing
...
.
.
.
.
.
.
.
.
210-3
a
.
Clutch
Disc
Diameter
.............
..
..
.
......
210-3
GENERAL
CLUTCH
HYDRAULICS
This
repair
group
covers
replacement
of
the
clutch
mechan-
The
Clutch
is
hydraulically
actuated
by
the
master
and
slave
¡cal
and
hydraulic
components
.
Special
tools
may
be
required
cylinders
.
Clutch
disc
wear
is
automatically
taken
upby
the
for
some
of
the
procedures
.
Read
the
procedure
through
be-
pushrod
travelof
the
slave
cylinder,
making
periodic
adjust-fore
beginning
a
job
.
ments
unnecessary
.
NOTE-
See200
Transmission-General
for
transmission
applicatíon
information
.
The
major
components
of
the
clutch
system
are
shown
in
Fig
.
1
.
Engine
Pressure
plate
flywheel,,
assembly
Clutch
Flywheel
bolt
Pressure
plate
release
lever
Release
lever
Fig
.
1
.
Clutch
assembly
and
hydraufcs
.
210
Clutch
Release
bearing
Pushrod
A
soft
or
spongy
feel
to
the
clutchpedal,
long
pedal
free-
play,
or
grinding
noises
from
thegears
while
shifting
can
all
in-
dicate
problems
with
the
Clutch
hydraulics
.
In
these
circum-
stances
it
is
best
to
start
with
a
clutch
fluid
flush,
followed,
if
necessary,
byreplacement
of
the
hydraulic
parts
.
From
brake
fluid
reservoir
CLUTCH
210-1
0
0
Transmission
inputshaft
Clutch
master
cylinder
Bulkhead
Slave
cylinder
6535
CLUTCH
HYDRAULICS
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 229 of 759
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