1992 BMW 325i 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)

WINDSHIELD
CLEANING
SYSTEM



Washer
f
luid
reservoir,
replacing

1
.
Open
hood
and
siphon
out
washer
fluid
reservoir
.
The
windshieldcleaning
system
includes
the
spray
nozzles

in
the
engine
hood,
the
washer
fluid
pump,
and
the
washer
flu-

id
reservoir
in
the
front
passenger
side
of
the
engine
compart-

ment
.

The
windshield
spray
nozzles
can
be
aimed
by
using
asew-

ing
need1e
or
a
similar
diameter
stiff
piece
of
wire
.

Windshield
spray
nozzle,

removing
and
installing

1
.
Open
hood
andremove
hood
insulating
pad
retaining
clips
until
bottom
of
nozzle
canbe
fully
accessed
.
See
410
Fenders,
Engine
Hood
.

2
.
Carefully
disconnect
hose
from
nozzle
.
Disconnect
har-

ness
connectors
for
nozzleheater
.

3
.
Push
nozzleout
of
hood
.
See
Fig
.
21
.

Fig
.
21
.
First
push
nozzle
forward
then
upward
from
underneath
hood
.

4
.
Installation
is
reverse
of
removal,
noting
the
following
:

"
Check
that
colors
of
harness
and
nozzle
connector

match
.

"
Check
and
adjust
nozzles
before
driving
.

WIPERSAND
WASHERS



611-
9

2
.
Remove
windshield
washer
pump
and
hose
as
de-

scribed
later
.

3
.
Remove
windshield
washer
fluid
level
sensor
as
de-

scribed
later
.

4
.
Remove
large
plastic
washer
reservoir
retainer
at
fend-

e
r
.

5
.
Remove
reservoir
.

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

"
On
installation
check
that
washer
fluid
hose
is
not
kinked
.

"
Replacehose
clamp
.

Windshield
washer
fluid
pump,
replacing

The
windshield
washer
fluid
pump
ís
mounted
in
the
washer

fluid
reservoir
.

1
.
Open
hood
and
siphon
out
washer
fluid
reservoir
.

2
.
Depress
retaining
tabs
on
electrical
connector
and
un-

plug
harness
connector
from
pump
.

3
.
Loosen
hose
clamp
and
remove
washer
fluidline
from

washer
pump
.

4
.
PA
pump
out
of
tank
.
See
Fig
.
22
.

Fig
.
22
.
Pull
windshield
washer
pump
up
to
remove
(arrow)
.

5
.
Installation
is
reverse
of
removal
.
Check
pump
to
tank

sealing
grommet
for
damage
and
correct
fit
.
Replace

hose
clamp
.
Check
that
washer
fluid
hose
is
free
of

kinks
.

WINDSHIELD
CLEANING
SYSTEM

611-
1
0



WIPERS
AND
WASHERS

Washer
fluidleve¡
sensor,
replacing

(modeis
with
check
control)

The
washer
fluid
level
sensor
is
mounted
in
the
fluid
reser-

voir,
near
the
bottom
of
thecontainer
.

NOTE-

Check
wire
leads
at
sensor
for
worn
insulation
and
cor-
rosion
.
Check
electrical
contacts
in
harness
connector
for
corrosion
.

1
.
Open
hood
and
siphon
out
washer
fluid
reservoir
.

2
.
Lift
harness
connector
retaining
lever
and
unplug
har-

ness
connector
to
washer
fluid
level
sensor
.
See
Fig
.

23
.

3
.
Pul¡
fluid
leve¡
sensor
out
from
rubber
grommet
.

4
.
Install
new
sensor
into
reservoir
.
Check
sealing
grom-
met
for
correct
fit
.
Replace
if
damaged
.

WINDSHIELD
CLEANING
SYSTEM

612
Switches
and
Electrical
Accessories

GENERAL
.
.
.
.
.
.
.
.
.
...
.
.
.
.
.
...
.
......
.612-1



Headlight
switch,
replacing



..
.
...
.
.
.
.
.
.
.
.
.
612-5

Foglight
switch,
replacing
....
.
.
.
.
.
.
.
.
.
.
.
.
.
612-5
INTERIOR
SWITCHES
.
.
...
.
.
.
.
.
.
.
.....
612-1



Hazard
warning
switch,
replacing
.
.
.
.
.
.
.
.
.
.612-5
Turn
signal
switch
and
wiper
switch,



Powerwindow
switch,
replacing
.
.
.
...
.
.
.
.
.
612-5
replacing
.
.
.
.
.
.
.
...
.
.
.
.....
.
....
.
.
.
.
612-1



Outside
mirrorswitch,
replacing
.
.
.
.
.....
.
.
.612-6
Ignition
Switch
Assembly
.
.
.
.
.
.
.
.
....
.
...
612-3

Ignition
electrical
switch,
replacing
.
...
.
....
612-3



INTERIOR
LIGHTS
.
.
................
.
..
612-6

Ignition
lock
cylinder,
replacing
.
.
.
.
.....
.
..
612-4



Dome
light,
rear
map
lights,
trunk
light,

Headlight
and
Foglight
Switch
Assembly
.
.
.
.
612-5



replacing
bulbs
.
......
.
.
.
.
.
.
.
.
.
.....
.
.612-7

GENERAL



Turn
signal
switch
and
wiper
switch,

replacing
Thissection
covers
replacement
of
interior
switches
and
accessories
.



The
procedures
for
removing
the
turn
signal
stalk
switch
and
the
wiper
system
stalk
switchare
similar
.
When
working
on
electrical
switches,
always
disconnect
the
negative
(-)
cable
from
the
battery
and
insulate
the
cable
end
to
prevent
accidental
re-connection
.

CAUTION-

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

WARNING
-

The
cars
covered
by
this
manual
are
equipped
with
a
Supplemental
Restraint
System
(SRS)
that
auto-'
matically
deploys
one
or
more
airbags
.
Each
airbag
unit
houses
an
explosive
powerful
charge
.
Any
work
involving
the
SRS
system
should
only
be
per-
formed
byan
authorized
BMW
dealer
.
Making
re-
pairs
without
the
proper
knowledge
and
special
test
equipment
may
cause
serious
personal
injury
.
See
721
Airbag
System
(SRS)

3
.
With
front
wheels
pointed
straight
ahead,
remove
steer-
"
Testing
and
replacement
information
for
the
oil
ores-



¡ng
wheel
.
See
320
Steering
and
Wheel
Alignment
.
sure
switch
is
covered
in
119
Lubrication
System
.

NOTE-

"
Wirfng
diagramscan
be
found
in
Electrical
Wiring
Diagrams
.

"
Fuse,
relay
and
electrical
component
locations
can
be
found
in
610
Electrical
Component
Locations
.

"
Replacement
information
for
thetransmission
gear
position/neutral
safety
switch
is
covered
in
250
Gear-
shift
Unkage
.

INTERIOR
SWITCHES

NOTE
-

To
preventmarring
interior
trim,
wrap
the
tips
of
screw-
drivers
and
pliers
with
tape
beforeprying
out
switches
or
electrical
accessories
.

SWITCHES
AND
ELECTRICAL
ACCESSORIES



612-1

1
.
Disconnect
negative
(-)
cable
from
battery
and
cover
terminal
with
insulating
material
.

2
.
Remove
airbag
unit
from
steering
wheel
.
See
721
Air-
bag
System
(SRS)
.
Store
airbag
unit
in
a
safe
placew¡th
pad
facing
up
.

NOTE
-

To
helo
with
reassembly,
mark
steering
wheel
and
col-
umn
before
disassembly
.

4
.
Remove
trim
panel
from
lower
left
side
of
instrument
panel
.
See513
Interior
Trim
.

INTERIOR
SWITCHES

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)

Ignition
Switch
ASsembly



3
.
Remove
screw
retaining
lower
steering
column
cover
and
remove
cover
.
Refer
to
Fig
.
1
.



,

The
components
of
the
ignition
switch
assembly
are
shown

in
Fig
.
5
.
The
ignitionelectrical
switch
and
the
ignition
lock
cyl-

inder
can
be
removed
with
the
ignition
switch
assembly
at-

tached
to
the
steering
column
.

ignition
electrical
switch,
replacing

1
.
Disconnect
negative
(-)
cable
from
battery
and
cover
terminal
with
insulating
material
.

CAUTION
-

Prior
to
disconnecting
the
battery,
read
the
battery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
vi¡¡
.

2
.
Remove
trim
panel
from
lower
left
side
of
instrument

panel
.
See
513
Interior
Trim
.

F~
"

Fig
.
5
.



Ignition
switch
assembly
.

SWITCHES
AND
ELECTRICAL
ACCESSORIES



612-3

4
.
Clean
away
colored
sealer
from
ignition
switch
set

screws
and
remove
slotted
set
screwson
both
sides
of

switch
.
See
Fig
.
6
.

5
.
Release
tabs
andremove
switch
after
separating
elec-
trical
harness
connector
.

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

3



EWS
II
ring
antenna
(Jan
.
1995
and
later
models)

"
Before
mating
ignition
electrical
switch
toignitionlock,

check
that
switch
isin
correct
position
relativetoigni-
tion
lock
.

"
Seal
set
screws
using
paint
or
lacquer
.

0012241

INTERIOR
SWITCHES

612-4



SWITCHES
AND
ELECTRICAL
ACCESSORIES

Fig
.
6
.



Ignition
switch
set
screws
(arrows)
.

Ignition
lock
cylinder,
replacing

NOTE-

On
cars
with
EWS
11(production
date
1/95
and
later),
the
ring
antenna
surrounding
the
ignition
switch
must
be
removed
.
See
515
Central
Locking
and
Anti-theft
.

1
.
Insert
master
key
finto
lock
cylinder
and
turn
60°
to
"ra-
dio"
position
.
See
Fig
.
7
.

Fig
.
7
.



Turn
ignition
switch
60°
to
"radio"
position
(arrow)
.

2
.
Insert
a
thin
piece
of
stiff
wire
into
opening
in
lock
cylin-
der
and
pull
lockcylinder
out
.
See
Fig
.
8
.

NOTE-

On
early
cars
(up
to
production
date
1ol95),
turn
lock
cylinder
back
12°
to
release
.

INTERIOR
SWITCHES

0012555
0011807
0011808

Fig
.
8
.



With
ignition
key
in
"radio"position,
insert
stiff
wire
into
lock
opening
to
release
cylinder
.

Headlight
and
Foglight
Switch
Assembly

The
headlight
and
foglight
switches
are
retained
in
the
left

dashboard
insert
.
This
alsocontains
the
driver's
side
face
lev-

e¡
air
vents
.
To
service
either
switch,
remove
insert
byremov-
ing
a
single
screw
.
See
Fig
.
9
.

NOTE-

Access
to
electrical
hamess
connectors
behind
dash
insert
may
be
easier
if
lower
left
dash
trim
and
driverside
knee
bolsterare
removed
.
See
513
Interior
Trim
.

Fig
.
9
.



Remove
retaíning
screw
to
pull
out
left
dash
insert
(arrow)
.