torque BMW M3 1998 E36 Workshop Manual

0012531Fig
.
16
.
Engine
control
unit
(ECM)
compartment
cover
screws
(ar-
rows)
.

WIPERS
AND
WASHERS



611-
7

Fig
.
18
.
Wiper
assembly
electrical
plug
(arrow)
.

uu1zbs6

13
.
Cover
inside
edges
of
cowi
panelsheet
metal
with
thick
tape
to
prevent
damaging
it
during
wiper
assembly
re-
moval
.

14
.
Wrap
protective
tape
around
wiper
shaft
on
driver
side
to
prevent
damaging
sheet
metal
during
removal
.

15
.
Push
wiper
arm
shaft
down
into
cowiarea
and
maneu-
ver
wiper
assembly
outof
cowi
.

16
.
Installation
is
reverse
of
removal,
keeping
in
mind
:

"
Install
all
fasteners
finger
tight
first
.

"
Torque
topfasteners
in
sequence
indicated
in
Fig
.
17
.

Then
tighten
wiper
assembly
support
bolts
inside
air

plenum
.
"
Wire
tie
wiper
harness
lo
wiper
assembly
support
in-

side
plenum
.

"
Once
installed
;
wiper
motor
should
first
be
run
to
parked
position
and
switched
off
.

"
Next,
insta¡¡
wiper
arms
butnot
blades
.

"
Close
hood
and
fit
wiper
blades
:

"
Check
all
electrical
harness
fittings
and
sealing
grom-

mets
for
correct
reinstallation
.
Replace
al]
wire
ties
cut

during
removal
.

CAUTION-

The
gaskets
and
sealing
grommets
at
the
ECM
compartment
cover
(passenger
sideof
bulkhead)
must
be
installed
correctly
to
keep
moisture
out
of
critica¡
electrical
componente
.

Fig
.
17
.
Wiper
assembly
mounting
fasteners
(arrows)
.



Tightening
Torques

"
Wiper
shaft
nut
at
cowi
..
.
.
..
.......
12
Nm
(9
ft-Ib)

11
.
Remove
wiper
assembly
support
.
Refer
to
Fig
.
10
.



"
Wiper
support
to
wiper
assembly

or
to
body
.........
...
..........
10
Nm
(89
in-lb)

12
.
Separate
harness
at
bulkhead
connector
.
See
Fig
.
18
.



-
Wiper
arm
to
wiper
shaft
..........
25
Nm
(18
ft-Ib)

WINDSHIELD
WIPER
ASSEMBLY

611-
8



WIPERS
AND
WASHERS

Windshieldwiper
motor,
removing
and
in-

stalling

1
.
Disconnect
negative
(-)
cable
from
battery
.



8
.
Install
wiper
arm
crank
in
straight
line
with
linkage
.
See

Fig
.
20
.

CA
UTION-

"
Prior
to
disconnectiog
the
battery,
read
the
bat-
tery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
vi¡¡
.

"
Use
tendercover
to
protect
windshield
.

2
.
Remove
wiper
assembly
as
described
earlier
.

3
.
Remove
nut
on
wiper
motor
linkage
crank
and
remove

linkage
crank
from
motor
.
See
Fig
.
19
.

0012539

Fig
.
19
.
Wiper
linkage
crank
nut
(arrow)
and
wiper
motor
mounting
bolts
(A)
.

4
.
Unscrew
three
motor
to
assembly
mounting
bolts
and
remove
motor
.
Refer
to
Fig
.
19
.

5
.
Insta¡¡
new
motor
to
wiper
assembly
.
Do
not
insta¡¡

crank
.

6
.
Connect
motor
to
electrical
harness
.
If
necessary,
re-

connect
battery
temporarily
.

WINDSHIELD
WIPER
ASSEMBLY

7
.
Operate
motor,
then
turn
off
switch
.
Motor
will
stop
in

"park"
position
.

NOTE
-

When
installing
wiper
crank
onto
wiper
motor,
bracecrank
with
a
drift
pin
through
the
hole
on
crank
into
hole
onwiper
assembly
.

Fig
.
20
.
Align
wipercrank
with
linkage,
as
illustrated
.

9
.
Remainder
of
installation
is
reverse
of
removal
.

0012538

Tightening
Torques

"
Wiper
motor
to
wiper
assembly
(use
new
bolts)
.
..
..
10
Nm
(89
in-lb)

"
Wiper
motor
crank
to

wipermotor
(M8
nut)
......
..
.
...
.
27
Nm
(20
ft-Ib)

612-2



SWITCHES
AND
ELECTRICAL
ACCESSORIES

5
.
Remove
lower
steering
column
cover
from
steering
col-

umn
.
See
Fig
.
1
.

uu12543

Fig
.
1
.



Lower
steering
column
cover
retaining
screw
(arrow)
.

6
.
Remove
stalk
switch
holder
retaining
screw
.
See
Fig
.
2
.

Fig
.
2
.



Stalk
switch
holder
retaining
screw
(arrow)
.

0012555

7
.
Depress
retaining
tabs
to
release
stalk
switchholder
.

Push
stalk
switchholder
downwards
and
off
steering

column
.
See
Fig
.
3
.

8
.
Depress
catches
on
stalk
switch
and
release
switch

from
columna
See
Fig
.
4
.

9
.
Cut
wíre
ties
retaining
harness
to
steering
column
.
Dis-

connect
switch
electrical
connector
located
at
bottom
of

steeringshaft
.

10
.
Installation
is
reverse
of
removal,
noting
the
following
:

"
Place
turn
signal
indicator
in
center
position
before
in-

stalling
.

"
Ensure
that
self
cancelling
cams
on
turn
signal
switch

are
not
damaged
during
installation
.

INTERIOR
SWITCHES

WARNING
-

Once
theairbag
unit
is
installed
and
all
other
ser-
vice
procedures
havebeen
completed,
start
theen-

gine
and
check
that
the
SRS
warning
light
goes
out
.

If
the
warning
light
stays
on,
the
SRS
system
will
not

function
as
designed
.
Have
the
system
diagnosed

and
repaired
by
an
authorized
BMW
dealer
.

0012545

Fig
.
3
.



Depress
retaining
tabs
(arrows)
and
push
holder
down-

wards
.

0012556

Fig
.
4
.



Depress
upper
and
lower
catches
simultaneously
and
unplug

harnessconnector
.

Tightening
Torques

"
Steering
wheel
to
steering

column
spindle
(Bolt)
...
.
.
.
..
.....
63
Nm
(46
ft-lb)

Headlight
switch,
replacing

1
.
Remove
left
side
dash
insert
and
disconnect
harness
connector
to
headlight
switch
.
See
Fig
.
10
.

3
.
Remove
nut
mounting
switch
to
dash
insert
.
See
Fig
.
11
.

Fig
.
11
.
Headlight
switch
mounting
nut
(arrow)
.

4
.
Pull
switch
out
from
housing
.

SWITCHES
AND
ELECTRICAL
ACCESSORIES



612-5

0012558

5
.
Installation
is
reverse
of
removal
.
Align
new
switch
to
dash
insert
.
See
Fig
.
12
.

Tightening
Torque

"
Headlight
switch
retaining
nut
.
......
2
Nm
(18
in-lb)

Foglight
switch,
replacing
0012559
Fig
.
10
.
Removing
headlightswitch
electrical
harness
connector



1
.
Remove
left
side
dash
insert,
as
described
earlier,
and
(arrow)
.



remove
foglight
switch
harness
connector
.

2
.
PA
off
headlight
switch
knob
.
Wrapping
adhesive
tape
aroundknob
facilitates
removal
.



spring
tabs
together
.

0012560
Fig
.
12
.
Fit
groove
on
headlightswitch
into
switch
bezel
ondash
insert
(arrows)
.

2
.
Slide
foglight
switch
out
of
dash
insert
by
sqúeezing

3
.
Installation
is
reverse
of
removal
.

Hazard
warning
switch,
replacing

1
.
Unclip
shift
boot
and
lift
up
from
shift
lever
console
.
Carefully
remove
insulation
pad
.
See
250
Gearshift
Linkage
.

2
.
Working
underneath
center
console,
push
hazard
warning
switch
up
and
out
of
console
with
your
fingers
.

3
.
Disconnect
harness
connector
from
switch
.

4
.
Installation
is
reverse
of
removal
.

Power
window
switch,
replacing

1
.
Unclip
shift
boot
and
lift
up
from
shift
lever
console
.
Carefully
remove
insulation
pad
.
See250
Gearshift
Linkage
.

2
.
Working
underneath
center
console,
push
window
switch
up
out
of
console
with
your
fingers
.
See
Fig
.
13
.

3
.
Disconnect
harness
connector
from
switch
.

4
.
Installation
is
reverse
of
removal
.

INTERIOR
SWITCHES

3
.
Break
open
plastic
retainer
in
back
of
instrument
clus-
ter
andremove
coding
plug
.
See
Fig
.
5
.

5
.
Reset
vehicle
mileage
.

1
ILO

NOTE-

Consultan
authorized
BMW
dealer
service
department
about
resetting
vehicle
mileage
using
the
special
BMW
Service
tester
.

Vehicle
speed
sender,
replacing

0

0013029

Fig
.
5
.



Remove
coding
plug
retainer
with
a
screwdriver
(arrow)
.

4
.
Install
coding
plug
and
new
retainer
.
Reinstall
instru-
ment
cluster
.

The
vehicle
speed
sender
supplies
an
electronic
pulsed

speed
signal
to
the
speedometer
.
The
sender
is
mounted
be-

neath
the
rear
of
the
car,
on
the
differential
cover
plate
.

1
.
Locate
vehicle
speed
sender
electrical
connector
at

back
of
differential
.
Depress
retaininglevers
on
con-
nector
and
remove
.
See
Fig
.
6
.

INSTRUMENTS
620-
3

0013180
Fig
.
6
.



Vehicle
speed
sender
harnessconnector
(A)
and
sender
(B)
.

2
.
Remove
vehicle
speed
sender
retaining
screws
and
re-

move
sender
from
differential
cover
.

3
.
On
installation,
replace
O-ring
and
coat
with
oil
(90W)
.
See
Fig
.
7
.

0011755
NOTE-



'

If
the
speedometer
is
malfunctioning,
check
the
vehicle



Fig
.
7,



O-ring
correctly
installed
on
vehicle
speed
sender,
speed
sensor
hamess
connectoron
the
rear
differen-
tial
.
Water
damage,
frayed
wires
and
corrosion
of
the
connectorcontactsareoftenthecause
ofspeedometer



4
.
Insta¡¡
sender
into
differential
and
tighten
mounting
malfunction
.



bolts
evenly
in
stages
until
the
sender
is
firmly
seated
.

Tightening
Torque

"
Vehicle
speed
sender

to
differential
cover
...
.
.....
6
.6-8
.4
Nm
(53-74
in-lb)

INSTRUMENT
CLUSTER

Fig
.
12
.
Mounting
bolt
for
A/C
refrigerant
line
flange
(arrow)
.

001Suu7

Fig
.
13
.
A/
C
control
module
(A)
behind
center
console
.
Arrows
pointto
electrical
harness
connectors
to
be
disconnected
.

CAUTION
-

Replace
heater
and
AIC
flange
O-rings
and
tight-

en
fasteners
to
specified
torques
.

0012644

HEATING
AND
AIR
CONDITIONING



640-5

Fig
.
14
.
Heating
and
ventilation
ducts
on
left
side
of
heater
box
(arrows)
.
Right
side
ducts
are
similar
.

Fig
.
15
.
Heater
box
retaining
bracket
in
center
console
(arrow)
.

0012645

10
.
Unclip
andremove
heating
and
ventilation
ducts
on



Tightening
Torques

sides
of
heater
box
.
See
Fig
.
14
.



"
A/C
refrigerant
lines
flange

to
bulkhead
..............
.
..
..
.
3
.5
Nm
(31
in-lb)

11
.
Remove
heater
box
retaining
bracket
on
center
tunnel



"
Water
hose
flange
to
bulkhead

and
remove
heater
box
.
See
Fig
.
15
.



(M6
nut)
................
.
...
..
3
.5
Nm
(31
in-lb)

"
Heater
box
retaining
bracket

12
.
Installation
is
reverse
of
removal
.
Evacuate
and
re-



to
tunnel
................
.
..
..
.
4
.5
Nm
(40
in-lb)

charge
A/C
system
using
specialized
equipment
.
Fill

and
bleed
cooling
system
.
See
170
Radiator
and

Cooling
System
.

HEATER
AND
CONTROLS

10
.
Pul¡
heater
core
up
and
backward,
away
from
heater
box
.
If
necessary,
remove
left
and
right
reinforcing
bracket
bolts
.
See
Fig
.
20
.

CAUTION-

Replace
coolant
flange
O-rings
and
tighten
fas-
teners
to
specified
torques
.

Tightening
Torques

1
.
Remove
center
console
.
See
513
Interior
trim
.

0012660

Fig
.
20
.
PA
heater
core
upand
towardback
of
car
.
Lower
mounting
bolts
for
steering
column
brace
and
glove
compartment
sup-
port
frame
may
have
to
be
removed
(arrows)
.

11
.
Installation
is
reverse
of
removal
.
Fill
and
bleed
cooling

system
.
See
170
Radiator
and
Cooling
System
.

"
Coolant
flange
to
heater
core
.
..
....
3
Nm
(27
in-lb)



Heater
andA/C
Control
Head

Heatercore
temperature
sensor,
replacing

The
automatic
heating
and
air
conditioning
systemuses

severa¡
sensors
to
control
interior
air
temperature
.
Use
the
fol-

lowing
procedure
and
the
data
in
Table
b
to
pinpoint
problems

with
theheater
core
sensors
.

2
.
Remove
Multi-Information
Display
(MID)
module
.
See

6201nstruments
.

HEATING
AND
AIR
CONDITIONING



640-7

0012648

Fig
.
21
.
Remove
heatercore
temperaturesensors
in
direction
shown
(arrow)
.

Table
b
.
Heater
CoreTemperatureSensor
Test

Values

Test
temperature



Resistance

4°F
(-20°C)



84
.39
-
109
.61
k
ohms

14
°
F
(-10°C)



48
.58
-
62
.09
k
ohms

32°F
(0°C)



28
.89
-
36
.40
k
ohms

68°F
(20°C)



11
.13
-
13
.83
k
ohms

140°F
(60°C)



2
.19
-
2
.78
k
ohms

212°F
(100°C)



0
.58
-
0
.77
k
ohms

Two
types
of
heater
and
aír
conditioning
control
heads
viere
installed
in
E36
cars
.
Early
models
have
control
heads
with
four
rotary
knobs
and
a
separate
control
module
.
A
flexible

shaft,
clipped
to
the
right
sideof
the
control
head,
controls
the
heater
flaps
.

Later
model
E36
cars,
starting
in
approximately
mid-1995,

have
digital
display
control
heads
with
buttons
.
The
A/C
con-
trol
module
is
integrated
with
the
digital
control
head
.

Heater
and
A/C
control
head,

removing
and
installing
(rotary-knob)

3
.
Pul¡
temperature
sensors
from
heater
box
and
discon-



1
.
Remove
Multi-Information
Display
(MID)
module
from

nect
harness
connectors
.
See
Fig
.
21
.



center
of
dash
.
See
620
Instruments
.

4
.
Installation
is
reverse
of
removal
.



2
.
Pul¡
off
outer
rotary
knobs
from
A/C
control
head
.
Re-

move
two
screwsonknob
bezels
.
Remove
control
pan-

el
face
plate
by
prying
it
off
control
head
gently
.
See
Fig
.

22
.

3
.
Carefully
push
control
head
back
into
dash
and
down-

ward
through
MID
opening
.
See
Fig
.
23
.

HEATER
AND
CONTROLS

Fig
.
36
.
6-cylinder
engine
belt
diagram
:
To
remove
A/C
belt,
lever
ten-
sioner
(A)
in
clockwise
direction
using
long-handled
wrench
or
breaker-bar
.

6
.
Disconnect
electrical
harness
connector
from
com-
pressor
.

7
.
Remove
A/C
pressure
hose
and
suction
hose
flange



10
.
Before
recharging,
evacuate
system
for
at
least
30
min
.
bolts
from
compressor
.
Plug
hoses
immediately
See



Recharge
system
following
equipment
manufacturer's

Fig
.
37
.



instructions
.
See
Table
d
.
A/C
System
Refrigerant

Capacities
.

0011879

Fig
.
37
.
A/
C
compressor
pressure
hose
(A)
and
suction
hose
(B)
.
(6-
cylinder
engine
shown
.
4-cylinder
engine
is
similar
.)

HEATING
AND
AIR
CONDITIONING



640-
1
3

Fig
.
38
.
A/
C
compressor
mounting
boits
(arrows)
.

9
.
Installation
is
reverseof
removal
.

CAUTION
-

"
Always
replaceO-rings
when
reconnecting
re-
frigerantfines
.

"
When
installlng
a
new
compressor
always
re-
place
receiverldrier
unit
.

Tightening
Torques

"
A/C
compressor
to
engine
block
....
22
Nm
(17
ft-Ib)
"
A/C
line
flange
to
A/C
compressor
5/8
in
.
fine
.
......
.....
....
.
.....
20
Nm
(15
ft-Ib)

3/4
in
.
fine
.......
.....
..........
39
Nm
(29
ft-Ib)

7/8
in
.
fine
...
....
.....
..........
42
Nm
(31
ft-Ib)

11/16
in
.
fine
.....
..
..
..
...
.
.....
48
Nm
(35
ft-Ib)

A/C
Compressor
Clutch

The
compressor
clutch
can
be
replaced
without
disturbing

thesealed
refrigerant
system,
although
clearances
in
the
six-

cylinder
cars
may
be
very
tight
.
Detach
the
compressor
from

the
compressor
bracket
togain
extra
clearance
.

8
.
Remove
compressor
mounting
boits
.
See
Fig
.
38
.
Re-



Typical
A/C
compressor
and
clutch
is
shown
in
Fig
.
39
.
move
compressor
by
pulling
downward
from
under-

neath
car
.



Remove
driveplate
and
pulley
to
access
clutch
magnetic

winding
.
See
Fig
.
40
.

AIR
CONDITIONING

640-14



HEATING
AND
AIR
CONDITIONING

7
Fig
.
39
.
A/
C
compressorand
clutch
components
.

8
00871208

1.
Clutch
plate
retaining
bolt



5
.
A/C
compressor
pulley
2
.
Clutch
plate



6
.
Clutch
retaining
circlip
3
.
Pulley
retaining
circlip



7
.
Clutch
(magnetic
winding)
4
.
Clutch
bearing



8
.
Compressor

00870082

Fig
.
40
.
A/
C
compressor
driveplate
canbe
held
stationary
with
strap
toolto
allow
removal
of
retaining
bolt
.

NOTE-

BMWs
are
equipped
with
compressors
from
various
manufacturers
.
Special
tools
may
be
required
tore-
move
driveplate
orpulley
.

AIR
CONDITIONING

Tightening
Torque

"
Compressor
clutch
bolt

to
compressor
shaft
.....
.
....
..
.
.
20
Nm
(15
ft-Ib)

A/C
condenser,
replacing

1
.
Following
manufacturer's
instructions,
connect
an
ap-

proved
refrigerant
recovery/recycling/recharging
unitto

A/Csystemand
discharge
system
.

WARNING
-

Do
not
dischargelcharge
the
AIC
system
without
proper
equipment
and
training
.
Damage
to
the
vehi-
cle
and
personal
injury
may
result
.

2
.
Remove
front
bumper
and
radiator
grilles
.
See510
Ex-

terior
Trim,
Bumpers
.

3
.
Remove
auxiliary
electric
radiator
fan
.
See
170
Cool-
ing
System
.

4
.
DetachA/C
lines
from
lower
right
corner
of
condenser
.

Plug
lines
immediately
.
See
Fig
.
41
.

Fig
.
41
.
A/
C
flange
bolts
at
condenser
(arrows)
.

5
.
Remove
condenser
mounting
bolts
from
frontradiator

support
.
See
Fig
.
42
.

6
.
Lift
up
condenser
to
disengage
from
lower
mounts
and

remove
from
below
.

7
.
Installation
is
reverse
of
removal
.

CA
UTION-

"
Always
replace
O-rings
when
reconnecting
re-
frigerant
fines
.

"
When
installing
a
new
condenser
always
replace
receiverldrier
unit
.

Front
seat
belt
reel,

removing
and
installing

1
.
On
4-door
models
:
Remove
seat
belt
anchor
bolt
from
front
seat
.
Refer
to
Fig
.
1
.

2
.
On
2-door
models
:
Remove
seat
belt
anchorbar
from
rear
of
door
sill
.
See
Fig
.
4
.

Fig
.
4
.



Two-door
seat
belt
anchor
bar
(arrow)
.

3
.
On
4-door
and
coupe
models
:
Remove
plastic
trim
cov-

er
from
B-pillar
(rear
door
jamb
pillar)
sliding
seat
belt

guide
.
Remove
nut
and
guide
loop
.
See
Fig
.
5
.

4
.
On
4-door
models
:
Starting
at
upper
corners,peel
rub-

ber
door
seals
away
from
B-pillar
trim
.
Remove
trim

from
B-pillar
.

5
.
On
2-door
models
:
Remove
reasside
panel
.
See
411

Doors
.

Fig
.
5
.



B-pillar
seat
belt
guide
nut
trim
(arrow)
.

SEAT
BELTS



720-
3

move
reel
and
seat
belt
.

9
.
Installation
is
reverse
of
removal
.

0012672
ou12a74

Fig
.
6
.



B-pillar
trim
removed
to
show
seat
belt
cross-bracket
bolts
(arrows)
.

8
.
Disconnect
harness
connector
from
reel
assembly
.
Re-
Tightening
Torque

6
.
Remove
two
bolts
holding
cross
bracket
to
B-pillar
.
See



"
Front
seat
belt
to
seat
Fig
.
6
.



(use
thread
locking
compound)
.
....
47
Nm
(35
ft-Ib)

"
Front
seat
belt
guide
loop
7
.
Remove
seat
belt
reel
mounting
boltat
base
ofB-pillar
.



to
B-pillar
sliding
anchor



.
..
.
.
.
....
31
Nm
(23
ft-Ib)

"
Front
seat
beltreeltoB-pillar
..
.
....
48
Nm
(36
ft-Ib)

FRONT
SEAT
BELT
ASSEMBLY