121 BMW 325i 1993 E36 Owner's Manual

Wheel
brake
caliper

Electronic
control
module
Fig
.
4
.



Schematic
representation
of
ABS
.

SUSPENSION,
STEERING
ANDBRAKES-GENERAL



300-3

Fig
.
3
.



Schematic
view
ofdual
circuit
brakes
with
4-channel
ABS
.

ing
adverse
conditions
.
It
automatically
adjusts
brake
system
hydraulic
pressure
at
each
wheel
to
prevent
wheel
lock-up
.

The
system's
main
components
arethe
wheel
speed
(pulse)
sensors,
the
ABS
control
module,
and
the
hydraulic

control
unit
.
See
Fig
.
4
.

Warning
lamp

u
Master

Whee

_

l
speed



I-lydraulic



cylinder

sensor



control
unit



0012135

UNI

The
wheel
speed
sensors
continuously
send
wheel
speed
signals
to
the
control
module
.
See
Fig
.
5
.
The
control
module
compares
these
signals
to
determine,
in
fractions
of
a
second,
whether
any
of
the
wheels
areabout
to
lock
.
If
any
wheel
is
nearing
a
lock-up
condition,
the
module
signals
the
hydraulic
unit
to
maintain
or
reduce
pressure
at
the
appropriatewheel(s)
.
Pressure
is
modulated
by
electrically-operated
sole-

noid
valves
in
the
hydraulic
unit
.

Fig
.
5
.



ABS
wheelspeed
sensor
.

0006563

INTEGRATED
SYSTEMS

GENERAL

310
Front
Suspension

GENERAL
..
.
.
.
.
.
.
.
.
.
.......
.
........
.
310-1



FRONT
WHEEL
BEARINGS
..
.
.
.
.......
310-8

SHOCK
ABSORBERS
AND
SPRINGS
..
.
310-2



Front
wheel
bearing,
replacing
...
.
.
.
.
.
.
.
...
310-8

Strut
assembly,
removing
and
installing
.....
310-2



STABILIZER
BAR
..........
.
.
.
.
.
.
.
.
.
.
.
.
310-9

Strut
assembly,
disassembling



Stabilizerbar,
removing
and
installing
.
.
.
.
...
310-9

and
assembling
.
.
.
...
.
.....
.
.........
310-4

Ride
Height
.
.
.
.
.
.
.
.
.
.
.
.
.....
.
........
.
310-4



SUBFRAME
CROSSMEMBER
.
.
.
.
.
.
.
.
.
.
.
310-9

Subframe
crossmember,
CONTROL
ARMS
.
.
...
.
.
.
.
.
.
.
...
.
.....
310-5



removing
and
installing
.....
.
.
.
.
.
.
.
.
.
...
310-9

Control
arm,
removing
and
installing
....



..
310-5
Outer
control
arm
ball
joint,
replacing



Table

exce
t
M3
models



310-6



a
.
Front
Ride
Height
Specifications
..
.
.....
..
.
..
..
310-5
Control
arm
bushing,
replacing
.
.
.
...
.
.....
310-7

The
E36
front
suspension
is
shown
in
Fig
.
1
.
For
a
general



Specialservice
tools
arerequired
for
most
of
the
work
de-

description
of
the
front
suspension
and
components,
see
300



scribed
in
this
repair
group
.
Read
the
procedures
through
be-

Suspension,
Steering
and
Brakes-General
.



fore
beginning
any
job
.

Stabilizer
bar

Power
steering

fluid
cooler

Control



Strut
assembly
arm

Tierod

Fig
.
1
.



BMW
E36
front
suspension
.
(M3
suspension
shown
.
Others
are
similar
.)

FRONT
SUSPENSION



310-1

Steering
arm
0012132

GENERAL

Fig
.
3
.



ABS
wheel
speed
sensor
mounting
bolt
(arrow)
.

NOTE-

Note
flats
on
stabilizer
bar
linkball
joint
for
placement
of
open
end
wrench
.

CAUTION-
Do
not
remove
center
strut
retaining
nut
.

8
.
Lower
strut
assembly
from
car
.

NOTE-

Store
the
removed
strut
assembly
upríght
.
Do
not
allow
it
to
líe
horizontally
or
upside-down
for
any
lengthoftime
.
If
íncorrect
storage
has
occurred,
place
the
strut
assembly
upríght
wíth
the
rod
fully
extended
for
at
least
24
hours
.

0012117

FRONT
SUSPENSION



310-3

6
.
Unbolt
splash
shield
and
steering
arm
from
strut
.
Sus-



Fig
.
4
.



Strut
and
steering
arm
assembly
.
pend
steering
arm
assembly
from
chassis
using
stiff
wire
.
See
Fig
.
4
.

1
.
Nut



6
.
Bolt
2
.
Strut



7
.
Bolt
3
.
ABS
wheel
speed
sensor



8
.
Flat
washer
4
.
Cable
holder



9
.
Self-locking
nut
5
.
Steering
arm



10
.
Washer
11
.
Bolt

9
.
Installation
is
reverse
of
removal
.
Be
sure
to
use
new

CAUTION-



self-locking
nuts
and
bolts
.

The
steering
arm
ball
joint
can
be
damaged
if
the



"
Use
new
steering
arm
mounting
bolts,
or
clean
bolts
arm
is
allowed
to
hang
unsupported
.



and
use
Locktite
®
270
orequivalent
thread-locking
compound
.

7
.
Support
strut
assembly
from
below
.
From
above,
re-



"
On
M3
models
:
When
attaching
stabilizer
link
to
strut,

move
three
strut
mounting
nuts
on
strut
tower
.



use
a
thin
wrench
to
hold
flats
on
link
parallelto
strut
.
"
Have
car
professionally
aligned
When
job
is
complete
.

Tightening
Torques

"
Brake
caliper
to
steering
arm
......
110
Nm
(81
ft-lb)

"
Road
wheel
to
hub
.........
100±10
Nm
(74
t7
ft-Ib)

"
Stabilizer
bar
link
to
strut
(M3)
.....
.
59
Nm
(44
ft-lb)

"
Steering
arm
to
strut
housing

"
(encapsulated
bolts-always
replace)
107
Nm
(78
ft-lb)

"
Strut
assembly
to
strut
tower

(self-locking
nuts)
........
...
..
..
.
24
Nm
(16
ft-Ib)

SHOCK
ABSORBERS
AND
SPRINGS

310-
4



FRONT
SUSPENSION

Strut
assembly,

disassembling
and
assembling
-
Be
sure
upper
spring
pad
is
correctly
installed
to
upper

NOTE-



spring
plate
and
spring
end
is
correctly
seated
in
up-
Springs
andlor
struts
should
always
be
replaced
in



per
and
lower
spring
plates
.

pairs
.



"
Use
a
new
self-locking
top
(center)
nut
.
Tighten
nut
fui-
¡y
before
releasing
spring
compressor
.

Replacing
the
upper
strut
mount,
spring
and
strut
requires



"
Have
car
professionally
aligned
when
job
is
complete
.

that
the
strut
first
bedisassembled
.
For
a
guide
to
the
parts

during
strut
replacement,
see
Fig
.
5
.
Tightening
Torques

WARNING-



"
Upper
strut
mount
to
strut
shaft
(seif-locking
nut)

Do
not,attempt
to
disassemble
thestruts
without
a



shaft
with
external
hexagon
......
..
65
Nm
(48
ft-1b)

springcompressordesignedspecificallyforthisjob
.



shaft
with
interna¡
hexagon
.......
..
44
Nm
(32
ft-Ib)

"
Road
wheel
to
hub
........
.100±10
Nm
(74
±7
ft-lb)

1
.
Remove
strut
assembly
as
described
earlier
.
Place
in

secure
support
.
Ride
Height

2
.
Using
spring
compressor,
compress
spring
until
spring

force
onupper
mount
is
relieved
.



Ride
height
is
measured
from
the
lower
edge
of
the
wheel

arch
to
the
bottom
edge
of
the
wheel
rim
.
See
Fig
.
6
.

WARNING
-

Make
sure
the
spring
compressor
grabs
the
spring



lf
the
ride
height
is
outside
the
specification
listed,
new

fully
and
securely
before
compressing
it
.



springs
should
be
installed
.
Be
sure
to
have
theold
spring

code
number
on
hand
when
ordering
new
spring
.

3
.
Pry
protective
cover
off
top
ofstrut
assembly,
then
re-

move
top
(center)
nut
andwasher
whileholding
strut



NOTE-

shaftstationary



The
spring
part
number
is
stamped
near
the
end
of
the
spring
cofls
.

4
.
Remove
upper
strut
mount
and
related
components
.

5
.
Release
spring
compressor
carefully
and
evenly,
allow-

ing
spring
lo
expand
slowly

1
Self-locking
hex
nut



Absorber/

Flat
washer



bump
stop

Nut

Cover

Upper



~
strut
mount



Pin
Z



Piston
bellows

Flat
washer



r
i

t1



~



1
Upper
spring
plate

1



1



1

Upper
spring
pad



I



1
-



,



Lower
spring
pad

-
Í



0012136

Fig
.
5
.



Front
spring,
spring
plate
and
related
parts
.

SHOCKABSORBERS
AND
SPRINGS

6
.
Assembly
is
reverse
of
disassembly,
noting
the
follow-

ing
:

Table
a
lists
front
suspension
ride
height
specifications
.

These
specifications
apply
to
a
car
in
a
normally
loaded
posi-

tion
.
When
checking
ride
height
or
installing
suspension
com-

ponents
that
require
thecar
to
be
"normally
loaded,"load
the

car
as
follows
:

310-
6



FRONT
SUSPENSION

3
.
Working
at
steering
arm,
remove
control
arm
balljoint

nut
.
See
Fig
.
8
.
Press
ball
joint
out
ofsteering
arm
.

Fig
.
8
.



Control
arm
ball
joint
nut
at
steering
arm
(arrow)
.

4
.
Remove
control
arm
to
subframe
crossmember
ball
joint
nut
.
Separate
ball
joint
from
crossmember
.
Work-

ing
at
other
end
of
control
arm,
remove
bolts
attaching

control
arm
bushing
carrier
to
body
.
See
Fig
.
9
.

Fig
.
9
.



Control
arm
bushing
carrier
bolts
(arrows)
.

0012117
0011960

5
.
Installation
is
reverse
of
removal
.
Make
sure
al¡
thread
bores,
bolts,
nuts
and
mating
surfaces
are
clean
.
Use
new
self-locking
nutsor
bolts,
where
applicable
.

WARNING-
"
Do
not
reuse
self-locking
nuts
or
bolts
.
They
are
designed
to
be
used
only
once
and
may
failif
re-
used
.

"
Bolts
and
nuts
coated
with
a
focking
compound
from
the
factory
shouldnot
be
refnstalled
.
Always
replace`micro-encapsulated"
fasteners
such
as
the
steering
arm-to-strutbolts
.

CONTROL
ARMS

Tightening
Torques

"
Control
arm
balljoint
to

subframe
crossmember
.
..
...
...
.
.
85
Nm
(62
ft-Ib)

"
Control
arm'ball
joint
to
steering
arm
.
65
Nm
(48
ft-Ib)

"
Control
arm
bushing
carrier
to
body
.
.
47
Nm
(34
ft-Ib)

"
Stabilizer
bar
link
to
control
arm
(M8)
.
42
Nm
(31
ft-Ib)

"
Road
wheel
to
hub
.
...
...
.
.
100±10
Nm
(74±7
ft-Ib)

Outer
control
arm
ball
joint,
replacing

(except
M3
models)

On
all
models
except
Mas,
the
outer
balljoint
is
available
as

a
replacement
part
.
The
ball
joint
can
be
replaced
with
the

control
arm
installed
.

Special
tools
are
requiredto
replace
the
balljoínt
.
Read
the

procedure
through
before
beginning
thejob
.

1
.
Disconnect
stabilizer
bar
link
from
control
arm
asde-

scribed
later
in
this
repair
group
.

NOTE-
On
M3
models,
the
stabilizer
bar
link
attaches
to
the
strut
.
tt
fs
not
necessary
to
disconnect
the
stabilizer
bar
link
on
M3
models
for
thfs
repair
procedure
.

2
.
Loosen
nut
for
balljointuntil
it
contacts
steering
arm
.

3
.
Using
a
suitable
ball
joint
tool,
separate
joint
from
steer-

íng
arm
.
Remove
ball
joint
mounting
nut
and
pullball

joint
out
of
steering
arm
.

4
.
Mark
position
of
balljoint
guide
to
control
arm
.
See
Fig
.

10
.

0012718

Fig
.
10
.
Mark
installed
position
of
ball
joint
guide
to
control
arm
(sr-
row)
.

5
.
Move
suspension
strut
out
of
way
and
press
ball
joint
out
of
control
arm
.

6
.
Installation
is
reverse
of
removal
.

"
Make
sure
control
arm
ball
joint
taper
bore
is
clean
and
free
of
any
corrosion
.
"
Press
new
balljoint
into
position,
making
sure
to
align
balljoint
guide
with
mark
made
earlier
.
"
Verify
that
locking
clip
on
new
ball
joint
faces
towards
center
of
vehicle
.

Tightening
Torques

"
Control
arm
ball
jointto
steering
arm
.
65
Nm
(48
ft-Ib)
"
Stabilizer
bar
link
to
control
arm
(M8)
42
Nm
(31
ft-Ib)
"
Road
wheel
to
hub
.
...
...
.
.
100±10
Nm
(74t7
ft-lb)

Control
arm
bushing,
replacing

Control
arm
bushings
should
aiways
be
replaced
in
pairs
and
the
two
bushings
and
bushing
carriers
should
have
the
same
markings,
indicating
same
manufacturer
.

1
.
Raisecar
.

WARNING-
Make
sure
that
the
car
is
firmly
supportedonjackstandsdesigned
for
the
purpose
.
Place
the
jackstands
beneath
a
structural
chassis
point
.
Do
not
place
jack
stands
undersuspension
parts
.

2
.
Unbolt
control
arm
bushing
carrier
from
body
.

3
.
Mark
installed
position
of
bushing
to
control
arm
.
See
Fig
.
11
.

assembly
off
control
arm
.

lnl~

0012145

FRONT
SUSPENSION



310-
7

NOTE-

The
kerosene-like
special
lubricant
is
used
only
asan
aid
in
installing
the
bushing
to
the
control
arm
stub
.
Workmustbe
carried
out
in
as
short
a
time
as
possible
.
Within
30
minutes
the
control
arm
bushing
will
be
`glued"
in
position
on
the
control
arm
.

CAUTION-

BMW
part
numbers
areprovided
for
reference
only
and
are
subject
to
change
.
Always
rely
on
an
authorized
BMW
dealerparts
department
for
the
most
up-to-date
information
.

6
.
Press
new
rubber
control
arm
bushing
assembly
onto
the
end
of
control
arm
to
proper
depth
(as
marked)
.

NOTE-

Be
sure
toreinstall
the
bushing
carrier
to
the
control
arm
correctly
.
The
carrier
has
centering
bores
on
side
.
This
side
must
face
up
towards
body
.
See
Fig
.
12
.

Fig
.
12
.
Control
arm
bushing
carrier
centering
bores
must
face
up
.

7
.
Immediately
bolt
control
arm
bushing
carrier
to
body,
torque
boits
and
lower
car
to
ground
.

Tightening
Torques

"
Control
arm
bushing
carrier
to
body
.
.
47
Nm
(34
ft-ib)
Fig
.
11
.
Before
removingbushing
from
control
arm,
mark
installed
po-
sition
of
old
bushing
to
control
arm
.
Insta¡¡
new
bushing
in
same
position
.



8
.
With
car
lowered
to
ground
and
loaded
as
described
earlier,
bounce
suspensiona
few
times,
then
leave
car

4
.
Using
appropriate
press
tools,
pull
control
arm
bushing



undisturbed
for
a
minimum
of
30
minutes
.

CAUTION-

5
.
Coat
end
of
control
arm
with
BMW
special
lubricant



I
Failure
to
follow
the
above
procedure
may
impair

part
no
.
8122
9
407284
.



the
car's
handling
and
stability
.

CONTROLARMS

Fig
.
8
.



Measuring
tie
rod
end
position
(for
reference
only)
.

3
.
Loosen
outer
tie
rod
end
lock
nut
.
See
Fig
.
9
.

Lock
nut

4
.
Unscrew
tie
rod
end
from
steering
gear
.

0012143

"
Make
sure
all
threaded
parts
are
clean
.
Replace
self-

locking
nuts
and
inner
tie
rod
lockplate
.
"
Install
outer
tie
rod
end
to
new
tie
rod
using
reference

measurement
recorded
earlier
.

Fig
.
9
.



Outer
tie
rod
end
lock
nut
(arrow)
.



"
Have
car
professionally
aligned
.

5
.
Installation
is
reverse
of
removal
.
Make
sure
all
thread-

ed
parts
are
clean
.
Have
thecar
professionally
aligned
.

Tightening
Torques

"
Outer
tie
rod
end
losteering
arm
....
45
Nm
(33
ft-Ib)

"
Outer
tie
rod
end
lock
nut
..
.......
.
35
Nm
(26
ft-Ib)

Tie
rod,
replacing

1
.
Raise
car,
remove
outer
tie
rod
end
ball
jointnut,
and

press
out
outer
tie
rod
end
ball
joint
as
described

above
.

2
.
Make
a
reference
measurement
of
outer
tie
rod
end
to

tie
rod
.
See
Fig
.
8
.
Record
measurement

NOTE-
Accurate
measuring
of
the
tía
rod
end
in
reference
to
the
tie
rod
will
help
to
approximate
wheel
alignment

when
new
parts
are
installed
.

STEERING
AND
WHEEL
ALIGNMENT



320-
5

3
.
Loosen
rack
boot
bellows
clamp
and
slide
bellows

back
.
Inspect
boot
for
any
signof
damage
.
Replace
if

necessary
.

4
.
Unlock
inner
tie
rod
end
lockplate
using
pliers
.

5
.
Using
special
tool,
unscrew
inner
tie
rod
end
from

steeringrack
.
See
Fig
.
10
.

WHEEL
ALIGNMENT

Caster
and
Camber

Fig
.
10
.
Special
tool
(arrow)
installed
on
inner
tie
rod
end
.

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

Tightening
Torques

"
Outer
tie
rod
end
to
steering
arm
..
.
.
45
Nm
(33
ft-Ib)

"
Outer
tie
rod
end
lock
nut
..........
35
Nm
(26
ft-Ib)

"
Inner
tie
rod
to
steering
gear
.......
71
Nm
(52
ft-Ib)

Proper
handling,
stability,
tire
wear,
and
driving
ease
de-

pendupon
the
correct
alignment
of
al¡
four
wheels
.
The
front

axle
is
aligned
in
relation
to
the
rear
axie,
then
the
front
wheels

are
aligned
in
relation
to
one
another
.
This
is
known
as
a
four-

wheel
or
thrust-axis
alignment
.

The
BMW
E36
uses
a
sophisticated
multi-link
suspension

at
the
front
and
rear
of
the
car
.
Proper
alignment
requires

computerized
alignment
equipment
.

Front
and
rear
caster
and
Camber
are
both
fixed
by
the
de-

sign
of
the
car
.
Any
deviations
are
usually
the
result
of
worn
or

damaged
suspension
or
body
parts
.

WHEEL
ALIGNMENT

330-
4



REAR
SUSPENSION

7
.
Installation
is
reverse
ofremoval,
noting
the
following
:

"
Make
sure
all
threaded
bolts,
nuts
and
makng
surfaces

are
clean
.

"
Instan
shock
absorber
finto
shock
tower
using
a
new

uppermounting
gasket
and
new
self-locking
nuts
.

"
Tighten
lower
boltto
its
final
torque
oncecar
is
on
ground
.

Tightening
Torques

"
Road
wheel
to
hub
.........
100±10
Nm
(74±7
ft-Ib)

"
Shock
absorber
to
trailing
arm

(car
in
normalloaded
position)
......
77
Nm
(57
ft-Ib)

"
Shock
absorber
to
upper
mount
.....
14
Nm
(10
ft-Ib)

"
Shock
absorber
upper
mount
to
body
(M8
self-locking
nuts)
.............
24
Nm
(17
ft-Ib)

Coil
spring,
removing
and
installing

WARNING
-

"
The
coil
spring
is
undercompressive
force
and
ís
extremely
dangerous
until
compression
isre-
moved
.

"
lt
is
recommended
that
a
restraining
chain
be
in-
stalled
between
the
bottomof
the
coil
spring
and
the
upper
control
arm
to
retain
the
spring
in
case
of
accidental
release
.
Personal
injury
can
result
if
the
compressed
coil
spring
is
not
released
slowly
and
carefully
.

"
Make
sure
that
the
car
is
firmly
supported
on
jack
standsdesigned
for
the
purpose
.
Place
the
jack
standsbeneatha
structural
chassis
point
.
Do
not
place
jack
stands
under
suspension
parts
.

1
.
Raise
car
and
remove
rear
wheel
.

2
.
Support
suspension
arm
from
below
using
a
transmis-

sion
jack
orequívalent
.
Tightening
Torques

3
.
Remove
drive
axle
from
final
drive
.
See
Fig
.
6
.
Suspend



"
Drive
axle
to
final
drive
flange

drive
axle
from
chassis
using
stiff
wire
.



M8
Torx
bolt
.
..
...
.
.............
64
Nm
(47
ft-Ib)

M10
Torx
bolt
...................
83
Nm
(62
ft-Ib)

4
.
Disconnect
shock
absorber
from
traíling
arm
.



"
Road
wheel
to
hub
.........
100±10
Nm
(74±7
ft-Ib)

"
Shock
absorber
to
trailing
arm
......
77
Nm
(57
ft-Ib)
5
.
Lower
suspension
slowly
and
carefully
until
the
com-
pressed
coil
spring
is
fully
unloaded
.

CAUTION
-

The
shock
absorber
prevents
the
drive
axle
and
trailíng
arm
from
drooping
too
far,
so
always
sup-port
the
trailing
arm
before
removing
the
shock
.
Damage
to
drive
axle
CV
joints
can
result
.

6
.
Remove
restraining
chain
and
remove
coi¡
spring
.

REAR
WHEEL
BEARINGS

Fig
.
6
.



Driveaxle
to
final
drive
mounting
bolts
(arrows)
.

0012103

7
.
If
spring
is
to
be
reused,
carefully
inspect
it
for
any
sur-

face
damage
or
corrosion
.
Inspect
spring
mounts
for

any
signs
of
damage
.
Replace
any
parts
showing
evi-

dence
of
wear
or
damage
.

8
.
Fit
coil
springtospring
mountsand
insta¡¡
restraíning

chaina

9
.
Slowly
lift
suspensionback
into
position,
making
sure

coil
spring
is
correctly
seated
in
upper
and
lower
coil

spring
mounts
.

10
.
When
suspension
has
been
lifted
sufficiently,
instan

shock
absorber
to
trailing
arm
.
Remove
restraining

chain
.

11
.
The
remainder
of
installation
is
reverse
of
removal
.

REAR
WHEEL
BEARINGS

The
rear
wheel
bearing
is
a
unitized
assembly
and
is
not
re-

pairable
separately
.
See
Fig
.
7
.

Special
press
tools,
to
be
used
with
the
trailing
arm
at-
tached
to
the
car,
are
requiredto
replace
the
wheel
bearings
.
Read
the
procedure
through
before
beginning
thejob
.

Wheel
bearing

Fig
.
7
.



Rear
wheel
bearing
assembly
.

Circlip



Drive
flange



Collar
nut

0012152

Rear
wheel
bearing,
replacing

1
.
Raise
car
and
support
safely
.
Remove
rear
wheel
.

2
.
Remove
drive
axle
as
described
later
.



6
.
Remove
bearíng
retainer
circlip
from
trailing
arm
.

3
.
Remove
brake
caliper
assembly
and
rotor
as
described



7
.
Using
appropriate
press
tools,
pull
bearing
assembly

in
340
Brakes
.
Leave
brake
hose
connected
to
caliper
.



out
of
trailing
arm
bearing
housing
.

Suspend
caliper
assembly
from
chassís
using
stiff
wire
.

8
.
Inspect
bearing
housing
for
any
damage
or
contamina

4
.
Remove
ABS
pulse
sensor
.
See
Fig
.
8
.



tion
.
Clean
housing
bore
thoroughly
before
installing

new
bearing
.
Make
sure
al¡
thread
bores,
bolts,
nuts

and
mating
surfaces
are
clean

Fig
.
8
.



ABS
pulse
sensor
being
removed
.

5
.
Remove
drive
flange
from
bearing
assembly
.
See
Fig
.

9
.

NOTE-

If
the
inner
bearing
race
remains
attached
to
the
drive

flange,
use
BMW
special
tool
nos
.
007
500
and
33
1

312
or
equivalents
to
separate
inner
race
from
flange
.

REAR
SUSPENSION



330-
5

0013125

Fig
.
9
.



Drive
flange
being
removed
from
bearing
assembly
using
im-
pact
style
puller
.

9
.
Install
new
bearing
assembly
using
press
tools
.
Apply

force
only
to
outer
race
when
installing
bearing
.

WARNING
-

M3
installation
:
redsealing
ríng
on
rear
wheel
bear-

ing
must
face
outward
.
Otherwíse
ABS
will
not
func-
tion
.

10
.
Insta¡¡
new
circlip
.
The
old
circlip
should
never
be
re-

used
.

CAUTION-

Make
sure
that
the
bearing
is
pressed
in
far
enough
to
contact
the
shoulder
at
the
back
sideof
the
housing
and
that
the
circlip
is
fully
seated
in
its
groove
.

11
.
Draw
drive
flange
into
bearing
using
appropriate
press

tools
.
Support
bearing
inner
race
when
pressing
in

0013223



drive
flange
.

NOTE-

BMW
specifies
special
tools
to
pull
the
drive
fiange
through
the
wheel
bearing
into
position
.
If
using
alter-
native
tools,
be
sure
to
support
the
bearing
inner
race
when
pressing
orpulling
the
drive
flange
finto
place
.

REARWHEEL
BEARINGS

Fig
.
11
.
Drive
flange
collar
nut
(arrow)
.

0012111

8
.
Support
trailing
arm
from
below,
using
a
transmission

jackorequivalent
.
Remove
shock
absorber
to
trailing

arm
bolt
.

WARNING
-

It
is
recommended
that
a
restraining
chain
be
in-
stalled
between
the
bottom
coil
of
the
coil
spring
and
the
upper
control
arm
to
retain
thespring
in
case
of
accidental
release
.
Personal
injury
can
re-
sult
if
the
compressed
coil
spring
is
not
released
slowly
and
carefully
.

REAR
SUSPENSION



330-
7

9
.
Lower
trailing
arm
sufficiently
to
gain
clearance
for
re-
moving
drive
axle
.
If
necessary
use
an
appropriate
puller
to
Rmove
drive
axle
from
wheel
bearing
housing
.
See
Fig
.
13
.

10
.
Installation
is
reverse
of
removal
.

Fig
.
13
.
Press
drive
axle
from
wheel
bearing
housing
using
puller
.

"
Apply
a
light
coating
of
oil
to
contact
face
of
collar
nut,
and
install
it
loosely
.

"
Install
road
wheel
and
lower
car
to
ground
.
"
With
an
assistant
applying
brakes,
tighten
drive
axle
collar
nut
to
its
final
torque
.

"
Install
a
new
collar
nut
retaining
plate
.

Tightening
Torques

"
Brake
caliper
to
trailing
arm
........
67
Nm
(50
ft-Ib)

"
Brake
rotor
to
drive
flange
.........
16
Nm
(12
ft-Ib)

"
Drive
axle
collar
nut
to

drive
flange
.
.
....
..
.
..........
250
Nm
(184
ft-Ib)

M3
......
.
.
.....
.
.
..........
300
Nm
(221
ft-Ib)

"
Drive
axie
to
final
drive
unit
mounting
flange
.
.
.
.....
M8
Torx
bolt
.
...
...
.
............
64
Nm
(47
ft-Ib)
M10
Torx
bolt
...
...............
100
Nm
(74
ft-Ib)

Road
wheel
to
hub100±10
Nm
(74t7
ft-Ib)
0012103



"
Shock
absorber
to
Fig
.
12
.
Drive
axle
to
final
drive
mounting
bolts
(arrows)
.



trailing
arm
.
.
...
...
.
............
77
Nm
(57
ft-Ib)

DRIVE
AXLES