1993 BMW M3 Battery

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

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
.

320
Steering
and
Wheel
Alignment

GENERAL
...
.
.
.
...
.
....
.
.
.
.
.
.
.
.
.
...
.
.
320-1



Outer
tie
rod
end,
replacing
.
...
.
.
.
.
.
.
.
...
.
320-4

Tie
rod,
replacing
.
.
.
.
.
.
.
.......
.
.
.
.
.
...
.
320-5

STEERING
WHEEL



320-1

Steering
wheel,
removing
and
installing
.....
320-1



WHEEL
ALIGNMENT
.
.
.
.........
.
.....
.320-5

POWER
STEERING
SYSTEM
.
.
.
.
.
.
.....
320-2



Front
Toe-in
and
Toe
Difference
Angle
.
.
...
.
320-6

Power
steering
pump,



Rear
Toe-in
.
.
.
.
.
.
.
...
.
................
320-6
removing
and
installing
..
.
.
.
.
.
.
.
.
.
.....
320-2



Wheel
Alignment
Specifications
.....
.
......
320-6

Power
steering
system,
bleeding
and
filling
.
.
320-3

STEERING
GEAR
.
.
.
.
...
.
.
.
.
.
.
.
.
.
.....
320-3

Steering
gear
rack,

removing
and
installing
.
...
.
..
.
..
..
..
.
..
.
320-3

GENERAL



STEERING
WHEEL

This
repair
group
covers
servicing
of
the
mechanical
and



The
BMW
E36
is
equipped
with
an
SRS
airbag
mounted
in

hydraulic
components
of
the
steering
system,
including
wheel



the
steering
wheel
.
Improper
handling
of
the
airbag
could
alignment
information
.



cause
serious
injury
.
The
airbag
is
an
explosivedevice
and

should
be
treated
with
extreme
caution
.
Always
follow
the
air-

The
variable-assist
power
steering
system
consistsof
an



bag
removal
procedure
as
outlined
in
721
Airbag
System

engine-driven
hydraulic
pump,
a
rack-and-pinion
steering



(SRS)
.

gear
assembly
with
an
integral
hydraulic
control
valve,
and

connecting
linkage
to
the
road
wheels
.



WARNING-

"
The
BMW
Supplemental
Restraint
System
(SRS)
At
lowspeeds,
maximum
power
assist
is
provided
to
ease



is
complex
and
special
precautions
must
be
ob-

parking
and
city
driving
.
At
high
speeds,
assist
is
reduced
to



served
when
servicing
.
Serious
injury
may
result

ensure
stability
.
The
power
steering
system
varies
assist



if
system
service
is
attempted
by
persons
unfa-

based
on
engine
speed
.



miliar
with
the
BMW
SRS
and
its
approved
ser-
vice
procedures
.
BMW
specifies
that
all

ING-



inspection
and
service
shouldbe
performed
by
WARN
an
authorized
BMW
dealer
.
"
Do
not
reuse
self-locking
nuts
.
They
are
de-signed
to
beused
only
once
and
may
failif
re-



"
BMW
Supplemental
Restraint
Systems
(SRS)
used
.
Always
replace
them
with
new
locking
nuts
.



are
equipped
with
a
back-up
power
supply
inside
the
SRS
control
module
.
A
10minute
waiting
"
Do
not
ínstall
bolts
and
nuts
coated
with
under-



shouldbe
observed
after
the
battery
cable
has
coating
wax,
as
correct
tightening
torque
cannot



been
disconnected
.
This
will
allow
the
reserve
be
assured
.
Always
clean
the
threads
with
sol-



power
supply
to
discharge
.
vent
before
installation,
or
install
new
parts
.

"
Do
not
attempt
to
weldor
straighten
any
steering
components
.
Always
replace
damaged
parts
.

NOTE-

For
information
on
steering
column-mounted
switches
and
the
ignition
lock,
see
612
Switches
and
Electrical
Accessories
.

STEERING
AND
WHEEL
ALIGNMENT



320-1

Caster
and
Camber
.
.
.
.
.
...........
.
....
320-5

TABLES

a
.
Front
Wheel
Alignment
Specifications
.
...
.......
320-6
b
.
Rear
Wheel
Alignment
Specifications
.
...
.......
320-6

Steering
wheel,
removing
and
installing

1
.
Center
steering
wheel
.
Make
sure
front
wheelsare

pointed
straight
ahead
.

2
.
Disconnect
negative
(-)
cable
from
battery
and
cover

terminal
with
insulating
material
.

CAUTION-
Prior
to
disconnectiog
the
battery,
read
the
battery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
viii
.

STEERING
WHEEL

Fig
.
3
.



Power
steering
pump
and
pulley
mounting
bolts
.

6
.
Installation
is
reverse
of
removal,
noting
the
following
:

"
Make
sure
al¡
thread
bores,
bolts,
nuts,
fluid
couplings

and
mating
surfaces
are
clean,
and
that
inside
surface

of
multi-ribbed-belt
is
free
of
grease
and
dirt
.

"
Use
new
sealing
washers
when
reattaching
power

steering
pressure
lines
.

"
Make
sure
hoses
have
adequate
clearance
from
chas-

sis
.
Do
not
over-torque
banjo
bolts
.

"
Fill
and
bleed
power
steering
system
as
described
be-

low
.

Power
steering
system,

bleeding
and
filling

1
.
Wíth
engine
off,
fill
power
steering
fluid
reservoir
with

clean
fluid
.
Fill
levelto
MAX
mark
on
dipstick
.

STEERING
AND
WHEEL
ALIGNMENT



320-
3

STEERING
GEAR
A
cutaway
of
the
power-assisted
rack-and-pinion
power

steering
gear
is
shown
in
Fig
.
4
.
The
rack
is
designed
to
be

maintenance
free
.

Pinion

Fig
.
4
.



Cutaway
of
rack-and-pinion
steering
gear
.

Tightening
Torques

"
Hydraulic
hoses
to
power
steering
pump



?he
steering
gear
and
linkage
require
no
maintenance
oth-

M10
banjo
bolt
.........
..
.
...
...
.
12
Nm
(9
ft-Ib)



er
than
alignment
and
a
periodic
inspection
for
worn
compo

M14
banjo
bolt
..............
..
..
35
Nm
(26
ft-Ib)



nents
.

M16
banjo
bolt
..............
...
.
40
Nm
(30
ft-Ib)

"
Power
steering
pump
to
bracket



Steering
gear
rack,
removing
and
installing
(self-locking
nuts)
.............
..
.
22
Nm
(16
ft-Ib)

"
Power
steering
pump
bracket
to
engine



1
.
Empty
power
steering
fluid
reservoir
using
clean
sy-

block
or
oil
pan
(self-locking
nuts)
...
22
Nm
(16
ft-lb)



ringe
.
Do
not
reuse
fluid
.

2
.
Disconnect
negative
(-)
cable
from
battery
and
cover

terminal
with
insulating
material
.

CAUTION-

Prior
to
disconnectiog
the
battery,
read
the
battery

disconnection
cautions
given
at
the
front
of
this

manual
on
page
viii
.

2
.
Start
engine
.
Slowly
turn
steering
wheelfrom
lock
to

lock
a
minimum
of
two
times
.



3
.
Carefully
remove
airbag
from
frontof
steering
wheel
.
See

721
Airbag
System
(SRS)
.
Store
airbag
unit
in
a
sale

3
.
Turn
engine
off
and
check
fluid
leve¡,
adding
fluid
if
nec-



place
.

essary
.
4
.
Make
sure
front
wheelsare
pointed
straight
ahead
.

5
.
Remove
outer
tie
rod
ball
joínt
nuts,
thenseparate
outer

tie
rod
ends
from
steering
arms
using
appropriate

press
tools
.

6
.
Disconnect
power
steering
hose
from
fluid
reservoir
.

STEERING
GEAR

340-
8
BRAKES

Fig
.
10
.
Brake
fluid
linesat
master
cylinder
(arrows)
.

6
.
If
fluid
reservoir
was
removed,
install
it
carefully
using
new
sealing
grommets
.

7
.
Mount
master
cylinder
to
brake
booster
using
a
new
0-
ring
and
new
self-locking
nuts
.

CAUTION-

Use
cave
not
to
over-torque
the
master
cylinder
mounting
nuts
.
This
could
damage
the
brake
booster
and
prevent
proper
vacuum
build-up
.

0012164

8
.
Connect
all
brake
fluid
lines
.
Connect
hydraulic
clutch
hose
to
brake
fluid
reservoir
.

9
.
Reconnect
fluid
leve¡
sender,
and
bleed
entire
brake
systemas
described
earlier
.

BRAKE
BOOSTER

BRAKE
BOOSTER

The
brake
booster
is
mounted
to
the
bulkhead
on
the
driver
sideofthe
engine
compartment,
directly
behind
the
brake
master
cylinder
.
See
Fig
.
11
.

0015225
Fig
.
11
.
Brake
booster
(arrow)
.
A
is
vacuum
hose
from
intake
mani-
fold
.
B
is
one-way
valve
.
Intake
manifold
vacuum
acts
ona
large
diaphragm
in
the
brake
booster
to
reducebrake
pedal
effort
.

Brake
booster,
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
vi¡¡
.

Tightening
Torque

"
Brake
master
cylinder
to



2
.
Using
a
clean
syringe,
empty
brake
(luid
reservoir
.

brake
booster
.....
..
.
..
.........
26
Nm
(18
ft-Ib)



WARNING-
"
Brake
fluid
hose
to
caliper
....
17-19
Nm
(13-14
ft-Ib)



Brake
fluid
is
highly
corroslve
and
dangerous
to
the
environment
.
Dispose
of
it
properly
.

3
.
Remove
brake
fluid
level
sender
connector
from
reser-
voir
cap
.

4
.
Disconnectbrake
fluid
lines
from
master
cylinder
.
Plug
openings
.

5
.
Disconnect
engine
vacuum
hose
from
brake
booster
.

GENERAL
.
....
.
.
.
.
.
.......
.
.
.
.
.
...
.
.
.
400-1



INTERIOR
EQUIPMENT
......
.
.
.
.......
400-4
Seats
and
Seatbelts
.
.
.
.
.
.
.....
.
.
.
.
.
..
.
..
400-4
BODY
ASSEMBLY
.
.
.
.
.
.....
.
.
.
.
.
.
.
.
.
.
.400-2



Instruments
and
Controls
.
..
....
.
.
.
.
.
.
.
...
400-4

Exterior
and
Aerodynamics
....
.
.
.
.
.
.
.
.
.
.
.
400-2



Central
Body
Electronics
.......
.
.
.
...
.
...
400-5

Coupe
Models
..
.
.
.
.
.
.......
.
.
.
.
.
.
.
.
.
..
400-3



Electronic
Immobilization
System
.
.
.
...
.
...
400-5

Convertible
Models
.
.
.
.
.
.
.
.....
.
.
.
.
.
.
.
..
400-3



Heating
and
Air
Conditioning
.
...
.
.
.
.
.
.
.
...
400-6

GENERAL

This
section
covers
system
descriptions
and
general
ser-

vice
information
for
the
repair
groupsfound
in
4
Body
and
5

Body
Equipment
.

When
working
or
servicing
cars
equipped
with
SRS
air-

bag(s),
the
following
precautions
must
be
observed
to
prevent

injury
.

F19
.1
.
The
BMW
E36
coupe
.

400
Body-General

BODY-GENERAL
400-1

WARNING
-

"
Airbags
are
inflated
by
an
explosivedevice
.
Han-dled
improperly
or
without
adequate
safeguards,
airbag
units
can
be
very
dangerous
.
Special
pre-cautions
must
be
observed
prior
to
any
work
ator
near
the
driver's
side
airbag,
the
passenger's
side
airbag
(where
applicable),
or
the
side-impact
aírbags
(where
applicable)
.
See
721
Airbag
Sys-
tem
(SRS)
.

"
Always
disconnect
the
battery
and
cover
the
neg-
ative
(-)
battery
terminalwith
an
insulator
before
starting
diagnostic,
troubleshooting
or
service
work
oncars
fitted
with
SRS,
and
before
doíng
any
welding
on
the
car
.

0013098

GENERAL

TheE36
convertible
is
an
all-season
vehicle
with
a
high
lev-
e¡offunctionality,
excellent
interior
comfort,
and
acoustic
re-

finement
.
Interior
materials
and
colors,
the
soft
top
and
the

light-alloy
wheelshave
been
carefully
matched
.

Various
versions
of
manual
and
automatic
soft
tops
have
been
used,
with
the
fully
automatic
convertible
roof
being
in-

stalled
beginning
in
the
1997
model
year
.

A
hard-top
in
body
color
with
heated
rear
window
is
avail-

ableas
an
option
for
the
cold
season
.

BODY-GENERAL
400-
3

Coupe
Models



The
convertible
body
structure
includes
many
passive
safe-

ty
refinements
over
its
fixed-top
counterparts
.
Some
of
the
en-

TheE36
coupe
is
similar
to
the4-door
sedan,
but
has
a



hancements
include
:

more
stretched
and
sleeker
appearance
.
Thus,
with
the
same

wheelbase
and
identicallength,
it
looks
different
but
still
famil-



"
More
rígíd
underbody
.

iar
.



"
Transverse
seat
members
.

"
Reinforced
windshield
frame
with
bonded
windshield,

The
2-door
variant
differs
from
the
4-door
sedan
by
a
3
.12



and
tubular
door
reinforcements
.

inch
(8
cm)
longer
front
end,
a
flatter
hood
line
with
air
slits,



"
Rollover
protection
system,
which
is
tripped
into
position

and
a
roof
almost
1
.2
inches
(3
cm)
shorter
.
Additional
differ-



in
a
fraction
of
second
.
This
is
available
as
optional

ences
include
wider
doors
with
frameless
Windows,
glass-



equipment
(standard
on
the
1998
328iC)
and
may
be
fit-

covered
door-posts
(B-pillars)
and
a
shorter
and
lower
lug-



ted
to
earlier
convertible
models
.
With
this
feature,
two

gage
compartment
lid
.



bars
fully
independent
of
each
other
come
up
behind

each
rear-seat
backrest
when
the
vehicle
is
in
danger
of

Convertible
Models



turning
over
.

A
convertible
body
normally
flexes
and
vibrates,
transfer-

ring
oscillations
to
the
luggage
compartment
.
In
the
E36
con-

vertible,
BMW
utilizes
a
special
battery
in
the
luggage
compartment,
in
conjunction
with
a
unique
battery
tray,
asa

vibration
dampening
system
to
counteract
thisoscillation
.

CAUTION
-

The
E36
convertible
requires
a
specialbattery
which
is
designed
for
constant
vibration
.

Information
for
the
convertible
top
and
its
related
mecha-

nisms
can
be
found
541
Convertible
Top
.

BODYASSEMBLY

GENERAL

This
repair
group
covers
front
and
rear
door
repair
informa-
tion,
including
removal
and
installationof
the
interior
doorpan-
els
.

DOORS

WARNING
-

Late
M3
moddis
havealuminum
doors
.
Use
extra
care
in
handling
aluminum
parts
in
order
to
avoid
damage
from
gouging
or
corrosión
.

NOTE-

"
For
information
on
the
power
door
windows
and
door
glass
replacement,
sea512Door
Windows
.

"
Forinformation
on
the
power
door
locking
system,
see
515
Central
Locking
and
Anti-Theft
.

WARNING
-

Some
1997
and
all
1998
cars
are
fitted
with
side-im-
pact
airbags
in
the
front
doors
.
When
servicing
doors
on
cars
with
front
side-impact
airbags,
always
dis-
connect
the
negative
(-)
battery
terminal
.
See
721
Airbag
System
(SRS)
for
cautions
and
procedures
relating
to
the
airbag
system
.

Front
orrear
door,
removing
and
installing

1
.
If
workingon
front
door
with
side-impact
airbag,
discon-

nect
negative
(-)
battery
cable
.

CAUTION
-

Prior
to
disconnectiog
the
battery,
read
the
battery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
vüi
.

2
.
Unbolt
main
harness
connector
at
door
pillar
and
sep-
arate
connector
.
See
Fig
.
1
.

411
Doors

GENERAL
.............
.
.
.
.
.
.
.
.
.
.
.
.
.
..
411-1



DOOR
PANELS
.
.
.
.
.
.
.
...
.
.
.
.
.
.
.
.
.
...
.
.
411-4

Front
door
trim
panel,
removing
and
installing
.411-4
DOORS
..
.
.
.
.
.
.
.
.
.
...
.
.......
.
....
.
.
.
411-1



Rear
door
trim
panel,
removing
and
installing
.411-5
Front
or
reardoor,
removing
and
installing
..
.
411-1



Rear
side
trim
panel,
removing
and
installing
Door
check,
replacing
.
.
.
.
.
.
.
.
.
.
.
.
.......
411-3



(coupemodel)
.
.
.
.
.
.
....
.
.............
411-6

Door
Adjustment
.......
.
.
.
.
.
.
.
.
.
.
.
.....
411-3



Rear
side
trim
panel,
removing
and
installing
(convertible
models)
.
...
.
.
.
.
.
.
.
.
.
.
.
...
.
411-6

DOORS
411-1

Fig
.
1
.



Door
harness
connector
being
removed
fromdoor
pillar
.
Re-
move
mountingscrews
atA,
then
separate
connector
by
pulling
upon
harness
lock(top
arrow)
.

3
.
Withdoor
fully
open,
remove
pin
bolts
from
top
and
bot-
tom
door
hinges
.
See
Fig
.
2
.

0011650

Fig
.
2
.



Door
hinge
pin
bolt
(arrow)
.
Top
hinge
shown
.
Also
remove
pin
bolt
from
lowerhinge
.

DOORS