1998 BMW 318i wheel torque

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

Fig
.
20
.
Trailing
arm
front
bracket
bolts
(arrows)
.

NOTE-

BMW-supplied
replacement
trailing
arms
come
with
the
bushings
installed
.
Anew
wheel
bearing
will
have
to
be
installed
.

0013222

11
.
If
trailing
arm
is
being
replaced,
transfer
trailing
arm
front
bracket
.
Transfer
attached
brake
system
compo-
nents
to
newarm
as
described
in
340Brakes
.
Insta¡¡
a
new
wheel
bearing
as
described
earlier
under
Rear
Wheel
Bearings
.

12
.
Installation
is
reverse
of
removal
.
"
Alwaysuse
new
self-locking
nuts
.
"
Have
car
professionally
aligned
when
job
is
complete
.

Tightening
Torques

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

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

"
Shock
absorber
to
trailing
arm
......
77
Nm
(57
ft-Ib)
"
Trailing
arm
tofront
bracket
.......
110
Nm
(81
ft-Ib)

"
Trailing
arm
bracket
to
body
........
77
Nm
(57
ft-Ib)

"Trailing
arm
to
upper

or
lower
control
arm
(M12
bolt)
....
110
Nm
(81
ft-Ib)

REAR
SUSPENSION



330-
1
1

Trailing
arm
bushing,
replacing

NOTE-

When
replacing
any
bushing
in
the
rear
trailing
arm,
measure
and
recordthe
orientation
and
protrusion
of
the
bushing
from
its
boss
.
Press
in
new
bushing
to
match
the
positionof
theold
one
.

1
.
Remove
trailing
arm
as
described
above
.

2
.
Pressbushing
out
of
trailing
arm
using
appropriate
press
tools
.

3
.
Coat
new
bushing
with
Circolight
9
lubricant
or
equiva-
lent
.

4
.
Using
appropriate
press
tools,
draw
new
bushing
into
trailing
arm
until
previously
measured
protrusion
is
achieved
.

5
.
If
front
bracket
bushing
was
replaced,
alignfront
brack-
et
before
tightening
bolt
.
See
Fig
.
21
.

A

B=8mm
measured
upfrom
cast-
ing
mark
on
trailing
arm
.
0013237

Fig
.
21
.
When
installing
trailing
arm
front
bracketuising
8mm
bar
stock
.

6
.
Installation
is
reverse
of
removal
.

"
Have
car
professionally
aligned
when
job
is
complete
.

Tightening
Torques

"
Trailing
arm
tofront
bracket
.......
110
Nm
(81
ft-Ib)

"Trailing
arm
bracket
to
body
......
.
.
77
Nm
(57
ft-Ib)

REAR
SUSPENSION
ARMS

330-
1
2



REAR
SUSPENSION

Upper
control
arm,

removing
and
installing

1.
Raise
rear
end
of
car
and
remove
wheel
.

WARNING
-

Make
sure
that
the
car
is
firmly
supportedon
jack

stands
designed
for
the
purpose
.
Place
the
jack

stands
beneatha
structural
chassis
point
.
Do
not

place
jack
stands
under
suspension
parts
.

2
.
Remove
drive
axle
as
described
earlier
.

3
.
Remove
stabilizer
bar
link
fromupper
control
arm
.

4
.
Support
trailing
arm
from
below
with
a
transmission

jackorequivalent
.

WARNING
-

It
is
recommended
that
a
retaining
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
ís
not
released
slowly
and
carefully
.

5
.
Remove
lower
shock
absorber
bolt
.
Refer
to
Fig
.
18
.

Slowly
lower
trailing
arm
until
coil
spring
is
fully
re-

leased
.
Remove
restraining
chain
and
remove
spring
.

7
.
Installation
is
reverse
of
removal
.

"
Always
use
new
self-locking
nuts
.

"
Have
car
professionally
aligned
when
job
is
complete
.

"
Insta¡¡
drive
axle
as
described
earlier
.

Tightening
Torques

"
Drive
axleto
final
drive
flange

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

M10
Torx
bolt
.........
..
..
.
...
100
Nm
(74
ft-Ib)

"
Shock
absorber
to
trailing
arm
..
..
..
77
Nm
(57
ft-Ib)

"
Upper
control
arm

to
final
drive
carrier
(M12
bolt)
...
..
.
77
Nm
(57
ft-Ib)

"
Upper
control
arm

to
trailing
arm
(M12
bolt)
.........



110
Nm
(81
ft-Ib)

Lower
control
arm,

1
.
Raise
rear
end
of
car
and
support
it
securely
on
jack-

stands
.
Remove
rear
wheel
.

2
.
Remove
both
lower
control
arm
mounting
bolts
.

FINAL
DRIVE
CARRIER

3
.
Use
a
soft
hammer
to
tap
control
arm
out
of
its
mount-

ing
points
.

4
.
Installation
is
reverse
of
removal
.

NOTE-

Use
a
new
bolt
and
washer
assembly
at
the
final
drive

carrier
mountíng
point
forthe
control
arm
.

Tightening
Torque

"
Lower
control
arm

to
final
drive
carrier
(M12
bolt)
......
77
Nm
(57
ft-Ib)

"
Lower
control
arm

to
trailing
arm
(M12
bolt)
....
..
.
..
110
Nm
(81
ft-Ib)

FINAL
DRIVE
CARRIER

Final
drive
carrier,

removing
and
installing

1
.
Raise
rear
end
of
car
and
support
it
securely
on
jack

stands
.
Remove
rear
wheels
.

2
.
Remove
driveshaft
.
See
260
Driveshaft
.

3
.
Remove
both
drive
axles
as
described
earlier
.

6
.
Remove
both
upper
control
arm
mounting
bolts
.
Re-

move
control
arm
.



4
.
Disconnect
stabilizer
bar
from
upper
control
arms
.
Re-

move
stabilizer
bar
mounts
.

5
.
Disconnect
speedometer
harness
connector
on
final

drive
(where
applicable)
.

6
.
Remove
rear
section
of
exhaust
system
.
See
180
Ex-

haust
System
.

NOTE-

It
may
be
easier
to
remove
complete
exhaust
asonepiece
.
See
180
Exhaust
System
.

7
.
Remove
upper
and
lower
control
arms
as
described

earlier
.

8
.
Support
final
drive
carrierwith
transmissíon
jack
.
Re-

move
mounting
bolts
and
nuts
at
final
drive
carrier

bushing
mounts
.
See
Fig
.
22
.

9
.
Slowly
lower
final
drive
and
final
drive
carrier,
detaching

removing
and
installing



wire
harness
and
connectors
as
necessary
.

10
.
Finaldrive
may
now
be
unbolted
from
final
drive
carrier
.

Fig
.
22
.
Final
drive
carrier
mounts
(arrows)
.

11
.
Installation
is
reverse
of
removal
.

uu1J221

"
Check
and
adjust
parking
brake
as
described
in
340

Brakes
.

"
Alwaysuse
new
self-locking
fasteners
.
"
Have
car
professionally
aligned
when
job
is
complete
.

Tightening
Torques

"
Drive
axle
to
final
drive
flange

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

M10
Torx
bolt
..........
..
...
.
.
100
Nm
(74
ft-Ib)

"
Driveshaft
to
final
drive
flange
...
See
260
Driveshaft

"
Final
drive
carrier
to
body
......
...
77
Nm
(57
ft-Ib)

"
Final
drive
to
final
drive
carrier
(M12
bolts)

Front
mount
.................
...
95
Nm
(70
ft-lb)

Rear
mounts
................
...
77
Nm
(57
ft-Ib)

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

"
Upper
or
lower
control
arm

to
final
drive
carrier
(M12
bolts)
....
.
77
Nm
(57
ft-Ib)

Final
driveinputshaft
oil
sea¡,
replacing

1
.
Raise
car
and
support
safely
.

2
.
Drain
final
drive
oil
as
described
earlier
.

3
.
Remove
driveshaft
from
final
drive
inputshaft
flange
.

See
260
Driveshaft
.

4
.
Make
matching
marks
on
input
shaft
and
inputshaft
collar
nut
.
See
Fig
.
4
.

Fig
.
4
.



Make
matching
marks
on
input
shaft
collar
nut
and
flange
.

5
.
Pry
lockplate
from
nut
.
Hold
input
flange
andremove

collar
nut
.
If
necessary,
usea
pullerto
remove
input

flange
.

6
.
Remove
final
drive
front
dust
cover
.

8
.
Install
new
final
drivefront
dust
cover
.

9
.
Lightly
lubricate
inputshaft
and
press
input
flange
back

on
.
Insta¡¡
collar
nut
and
slowly
tighten
until
matching

marks
line
up,
coming
as
close
aspossible
to
specified

torque
.

Tightening
Torques

"
Final
driveinputshaft
flange
to
pinion

with
4
bolt
side
covers
.



.........
175
Nm
(129
ft-Ib)

(or
until
match
marks
line
up)

"
Finaldriveinputshaft
flange
to
pinion
with
6
bolt
side
covers
...........
185
Nm
(137
ft-Ib)

(or
until
match
marks
line
up)

CA
UTION-

If
the
input
flange
nuttorque
is
exceeded,
or
the
nut
is
tightened
past
the
marks,
the
crushable
col-
lar
sleeve
behind
theflange
will
need
to
be
re-
placed
.
This
operation
requires
disassembly
of
the
final
drive
unit
.

10
.
Install
a
new
lockplate
and
refill
final
drive
with
lubri-

cant
.

11
.
Remaining
assembly
is
reverse
of
disassembly
.

Tightening
Torques

"
Driveshaftto
final
dríve
flange
...
See260
Driveshaft

"
Flex-disc
to
driveshaft
or
transmission
flange
...........
See260
Driveshaft

"
Finaldrivedrain
and
fill
plugs
...
.
..
.
70
Nm
(52
ft-Ib)

Final
drive
unit,

removing
and
installing

FINAL
DRIVE



331-
3

1
.
Raise
rear
end
of
car
and
support
it
securely
on
jack
stands
.
Remove
rear
wheels
.

2
.
Remove
driveshaft
from
final
drive
input
flange
.
See
7
.
Pry
faulty
sea¡
from
its
recess
using
a
hooked
sea¡
re-



260
Driveshaft
.
moval
toolor
a
large
screwdriver
.
Dip
new
sea¡
in
final

drive
lubricant
and
drive
it
into
position
.



3
.
Remove
both
drive
axles
from
final
drive
unit
.
Suspend

axle
using
stiff
wire
.
See
330
Rear
Suspension
.

CAUTION
-

ee
careful
not
to
mar
the
housing
when
removing



4
.
Disconnect
stabilizer
bar
from
upper
control
arms
.
Re-

the
seas
.



move
left
and
rightstabilizer
bar
mounts
.

5
.
Disconnect
speedometer
harness
connector
on
final

drive
(where
applicable)
.

6
.
Support
final
drive
with
transmission
jack
.
Remove

mounting
bolts
atfront
and
rear
.
See
Fig
.
5
.

7
.
Slowly
lower
final
drive
unit
and
remove
towards
rear
.

FINAL
DRIVE
SERVICE

331-
4



FINAL
DRIVE

FINAL
DRIVE
SERVICE

0013242
0013243

Fig
.
5
.



Final
drive
to
final
drive
carrier
rear
(A)
and
front
mounting
bolts
(B)
.

8
.
Installation
is
reverse
of
removal
.

"
Check
and
adjust
parking
brake
as
described
in
340
Brakes
.

"
Always
use
new
self-locking
fasteners
.

"
Have
car
professionally
aligned
when
job
is
complete
.

Tightening
Torques

"
Drive
axle
to
final
drive
flange

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

M10
Torx
bolt
.
.
...
...
..
........
100
Nm
(74
ft-Ib)

"
Driveshaft
to
final
drive
flange
...
See
260
Driveshaft

"
Final
drive
carrier
to
body
..
........
77
Nm
(57
ft-Ib)

"
Final
drive
to
final
drive
carrier
(M12
bolts)

Front
mount
.....
...
.
...
........
95
Nm
(70
ft-Ib)

Rear
mounts
.....
.......
.
.
.
..
...
77
Nm
(57
ft-Ib)

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

"
Upper
or
lower
control
arm

to
final
drive
carrier
(M12
bolts)
...
..
77
Nm
(57
ft-Ib))

When
bleeding
the
brakes,
startat
the
wheel
farthest
from



4
.
Close
bleeder
screw
and
release
brake
pedal
.
Refill
the
master
cylinder
and
progress
in
the
following
order
:



brake
fluid
reservoir
and
proceed
to
rear
left
wheel
.

"
right
rear
brake



5
.
Proceed
with
the
remaining
wheels
using
the
order
list-

"
left
rear
brake



ed
earlier
.

"
rightfront
brake

"
left
front
brake

Pressure
bleeding
brakes

(except
carswith
AST)

1
.
Top
off
brake
fluid
in
reservoir
and
connect
pressure

bleeder
to
reservoir
.
Connect
bleeder
hose
and
bottle
to
right
rearcaliper
bleeder
screw
.
Pressurize
system

to
approximately
1
bar
(14
.5
psi)
.

BRAKES
340-
3

Tightening
Torques

"
Bleeder
screws
:

7
mm
screw
..........
..
.
.
.
.
......
5
Nm
(4
ft-Ib)

9
mm
screw
..........
..
.
..
.......
6
Nm
(5
ft-Ib)

BRAKE
PADS,
CALIPERS,
AND
ROTORS

CAUTION-



TheE36
front
brake
caliper
is
shown
in
Fig
.
2
.
The
rear

Do
not
exceed
a
pressure
of
2
bar
(29
psi)
when



brake
caliper
is
shown
in
Fig
.
7
.

pressure
bleeding
the
brake
system
.
Excessive
pressure
will
damage
the
brake
fluid
reservoir
.



Brake
pads
canbe
replaced
without
disconnecting
the
brake
fluid
hose
from
the
caliper
or
having
to
bleed
the
brakes
.

2
.
Have
a
helperhold
brake
pedal
down
.



The
rotors
can
be
replaced
without
disassembling
the
wheel
huband
bearing
.
Always
machine
or
replace
rotors
in
parts
.

3
.
Open
bleeder
screw
.
See
Fig
1
.
Have
helper
slowly
,



Replace
pads
in
sets
.

pump
brakes
about10
times
with
bleeder
screw
open,

holding
pedal
down
on
the
last
pump
.
When
escaping



WARNING-

fluid
is
free
of
air
bubbles,
close
bleeder
screw
.



"
Althoughsemi-metallicandmetallicbrake
friction
materials
in
brake
pads
or
shoes
no
longer
con

CAUTION-



tain
asbestos,
they
produce
dangerous
dust
.

Bleeder
hose
must
alwaysremain
submersed
in



"
Treat
all
brake
dust
asa
hazardous
material
.
the
clean
brake
fluid
whenever
the
bleeder
valve
is
open
.



"
Do
not
create
dust
by
grinding,
sanding,
orclean-
ing
brake
friction
surfaces
with
compressed
air
.

"
Breathing
any
brake
dust
can
cause
serious
dis-
eases
such
as
cancer,
and
may
result
in
death
.

Brake
pads,
replacing

This
procedure
is
applicable
lo
both
front
and
rear
brakes
.

Front
and
rear
brake
assemblies
are
basically
the
same,
ex-

cept
that
the
rear
brake
rotors
house
the
parking
brake
mech-

anism

1
.
Raise
car
andremove
wheels
.

WARNING
-

Make
sure
thecar
is
firmly
supported
onjack
stands
designed
for
the
purpose
.
Place
the
jack
stands
be-
neath
a
structural
chassis
point
.
Do
not
place
jack
stands
undersuspension
parts
.

2
.
Remove
plastic
caps
from
guide
bolts
and
then
remove

guide
bolts
.
See
Fig
.
3
.

0012113



3
.
If
applicable,
disconnect
brake
pad
wear
sensor
con-
Fig
.
1
.



Brake
caliper
bleeder
screw
(arrow)
.



nector
and
remove
wiring
from
its
holder
.

4
.
Remove
anti-rattle
clip
from
caliper
.
See
Fig
.
4
.

BRAKE
PADS,
CALIPERS,
AND
ROTORS

6
.
Remove
brake
pads
from
caliper
.
Where
applicable,
carefully
pry
pad
wear
sensor
from
pad
.
See
Fig
.
5
.

Fig
.
5
.



Removing
brake
pad
wear
sensor
.

7
.
Inspect
brake
caliper
for
signs
of
leakage
.
Check
that
the
caliper
piston
slides
smoothly
into
caliper
.
Replace
caliper
if
any
faults
are
found
.

CAUTION-

With
the
pads
removed,
residual
hydreulic
pres-
sure
may
cause
the
caliper
piston
to
slide
out
.
Use
a
wooden
block
to
hold
the
piston
in
place
.

8
.
fnsert
brake
pad
wear
sensor
into
cutout
in
new
pad

where
applicable
.

14
.
Place
inner
brake
pad
(with
locating
spring)
ontobrake
NOTE-



caliper
piston
.
Route
pad
wear
sensor
wiring
through
lf
the
brake
lining
indicator
light
illuminated
prior
to



caliper
opening
and
bleeder
dust
cap
.
brake
pad
replacement,
the
wear
sensor
should
be
re-
placed
.



15
.
The
remainder
of
installation
is
reverse
of
removal
.

"
Do
not
lubricate
guide
boits
.
9
.
Slowly
press
piston
back
into
caliper
.
Use
cace
not
to



"
Once
brake
assembly
is
installed
depress
brakepedal
damage
piston
dust
sea¡
.
See
Fig
.
6
.



severa¡
times
before
driving
vehicle
.

NOTE-

"
Open
caliper
bleeder
screw
when
pressing
piston



Tightening
Torques

back
into
caliper
.
Catch
expelled
fluidin
appropriate



"
Brake
caliper
to
brake
pad

container
.
This
procedure
is
highly
recommended
in



carrier
(guide
bolt)
..........
...
.
.
30
Nm
(22
ft-Ib)

the
case
of
cars
with
ABS
.



"
Road
wheel
to
hub



.....
.
..
100±10
Nm
(74±7
ft-Ib)

"
Open
the
bleeder
screw
only
when
applying
force
to
the
piston
.
Do
not
allow
airto
be
drawn
in
through
the
bleeder
screw
.

"
Pressing
the
caliper
piston
in
may
cause
the
brake
flu-
id
reservoir
to
overflow
.
To
prevent
this,
use
a
clean
syringe
to
first
remove
some
fluid
from
the
reservoir
.

BRAKES
340-
5

0012157
Fig
.
6
.



Brake
caliper
piston
being
pressed
into
caliper
to
make
room
for
new
pads
.
Usea
rag
toprotect
caliper
piston
and
seals
.

10
.
Thoroughly
clean
inner
and
outer
surfaces
of
brake
ro-
tor
.
Inspect
rotor
for
cracks,
signs
of
overheating
and
0012156
scoring
.

11
.
Measure
thickness
of
rotor
.
See
Table
b
.
If
rotor
does
not
pass
minimum
thickness
requirements,
or
is
dam-

aged,
replace
as
described
later
.

12
.
Thoroughly
clean
all
contact
points
on
caliper
and
brake
pad
carrier
.
Clean
guide
bolts
and
make
surethey
slide
freely

13
.
Lightly
coat
pad
contact
points
with
brake
anti-squeal
paste
.
Place
outer
brake
pad
onto
caliper
.
Applya
small
amount
of
grease
to
thetop
and
bottom
contact
points
where
the
caliper
contacts
the
pad
carrier
.

BRAKE
PADS,CALIPERS,
ANDROTORS