1994 BMW 325i Trip

510-4



EXTERIOR
TRIM,
BUMPERS

Fig
.
8
.



Bumper
cover
retaining
screws
(arrows)
in
left
wheel
weil
.

7
.
Disconnect
harnessconnectors
at
outside
temperature



0013052

sensor
at
rear
of
left
side
of
bumperand
temperatura



Fig
.
9
.



Front
bumper
impact
absorber
mounting
nuts
(A)
and

switch
at
rear
of
right
side
of
bumper
(if
applicable)
.



bumper
bracket
hardware
(B)
.

8
.
Slide
bumper
straight
off
sida
brackets
.

9
.
Installation
is
reverse
of
removal,
notingthe
following
:



When
removing
and
installing
therear
bumper
or
its
compo-

"
Slide
side
brackets
on
bumper
and
body
carefully
to-



nents,
referto
Fig
.
10
.

gether
.

"
Make
sure
tabs
on
trim
strip
engage
slots
in
bumper



1
.
Raise
and
properly
support
vehicle
.

correctly
.

Tightening
Torque

"
Bumper
to
bumper

bracket
(M8
nut)
............
...
.
.
22
Nm
(16
ft-Ib)

2
.
Working
under
bumper,
remove
screws
or
expansion

Front
bumper
impact
absorber,replacing



rivetsat
corners
and
middle
of
lower
bumper
panel
.
Pull

panel
backward,
uncoupling
it
from
bumper
cover
.
See

Thebumper
mounting
bracket
and
impact
absorber
mount-



Fig
.
11
.

ing
hardware
are
accessible
with
the
Font
bumper
removed,
as
described
above
.
See
Fig
.
9
.



3
.
Remove
bumper
cover
expansion
rivets
and
screws
in-

side
left
and
right
rear
wheel
wells
.

NOTE
-

Install
the
bumper
bracket
boltwith
thread
locking
com-
pound
suchas
Loctite
8
270
or
equivalent
.

Tightening
Torques

"
Bumper
bracket
to
impact
absorber

(M10
nut)
.
..
.
...
.............:.
55
Nm
(41
ft-Ib)
"
Impact
absorber
to
chassis
(M6
nut)
...
9
Nm
(7
ft-Ib)

BUMPERS

Rear
bumper,
removing
and
installing

WARNING
-

Make
sure
that
the
car
is
firmly
supported
on
jack

stands
designad
for
the
purpose
.
Place
the
jack

stands
beneath
a
structural
chassis
point
.
Do
not

place
jack
stands
under
suspension
parts
.

4
.
Remove
left
and
right
bumper
bracket
mounting
bolts

and
remove
bumper
.
See
Fig
.
12
.

5
.
Installation
is
reverse
of
removal
.

NOTE-

Install
the
bumper
bracket
bolt
with
thread
locking
com-
pound
suchas
Loctite®270
or
equivalent
.

512-
4



DOOR
WINDOWS

7
.
Push
regulator
stop
tightly
against
window
regulator



4
.
Lower
door
window
about
12
in
.
(300
mm)
.
Remove

sector
and
tighten
nut
.



window
lifting
arm
retaining
clip
from
window
slide
.
Re-

o
Check
for
tight,
even
fit
at
top
of
window
frame
.



fer
to
Fig
.
2
.

"
If
necessary,temporarily
reconnect
negative
(-)
cable

to
battery
and
raise
window
so
it
is
pressing
uniformly



WARNING-

against
toprubber
sea¡
before
final
tightening
.



Once
the
window
is
lowered,
dísconnect
harness
connector
from
power
window
motor
to
prevent
ac-
8
.
Reinitialize
front
window
motorsas
described
earlier
.



cidental
operation
of
the
window
.

Tightening
Torques

"
Regulator
stop
to
window
regulator
....
9
Nm
(7
ft-Ib)

"
Window
regulator
bracket
to
door
.....
9
Nm
(7
ft-Ib)

Rear
door
window,
removing
and

installing
(4-door
models)

1
.
Remove
rear
door
panel
and
vapor
barrier
.
See
411



7
.
Remove
window
glass
from
above
.
Doors
.

2
.
Pul¡
out
rubber
guide
at
front
of
window
frame
.
Remove

three
screws
and
pul¡
off
exteriortrim
cover
.
See
Fig
.
6
.

UJ117U1
Fig
.
6
.



Trim
covermounting
screws
(arrows)
.
To
remove
cover,
slide
upand
off
door
.

3
.
Lift
up
andremovewindow
inner
sealing
strip
.
Remove

clipsat
edge
of
window
channel
.
Refer
to
Fig
.
1
.

WINDOW
SERVICE,
4-DOOR
MODELS

5
.
Pry
lifting
arm
out
of
slide
.
Refer
to
Fig
.
3
.

NOTE
-

Support
window
in
door
before
disconnecting
lifting

arm
from
window
slide
.

6
.
Remove
rubber
channelfromdoorframe
perimeter
.

8
.
Installation
is
reverse
of
removal
.

"
Rear
window
adjustment
is
similar
to
front
window
ad-

justment,given
earlier
.

"
Reinitialize
window
motorsas
described
earlier
.

Rear
door
fixed
glass,
removing
and

installing
(4-door
models)

1
.
Remove
window
from
rear
dooras
described
earlier
.

2
.
Remove
upper
and
lower
bolts
at
guide
rail
.
Lift
up
rub-

ber
sea¡
to
accessupper
bolt
.
See
Fig
.
7
.

Fig
.
7
.



Rear
guide
rail
mounting
bolts
(arrows)
.

3
.
Remove
guide
rail
screw
at
top
and
move
rail
aside
enough
to
slide
glass
forward
and
out
of
door
frame
.

See
Fig
.
8
.

4
.
Installation
is
reverse
of
removal
.

WINDOW
SERVICE,

2-DOOR
MODELS

WARNING
-

When
servicing
the
door
windows,
the
hamess
con-
nector
to
the
window
regulator
shouldalwaysbe
disconnectod
to
prevent
pinching
fingers
in
closing
window
.

2-door
models
are
equipped
with
the
"close
with
door
shut"

feature
.
In
this
rriode,
the
window
glass
moves
down
slightly

when
the
door
latch
is
activated,
then
goes
up
tightly
against

the
weather-strip
when
the
door
is
fully
closed
.

Front
door
window,
removing
and

installing
(2-door
models)

WARIWNG
-

Some
1997and
a111998
cars
are
fitted
with
side-im-

pact
airbags
in
the
front
doors
.
When
servicing
the
front
windows
on
cars
with
front
side-impact
air-
bags,
always
disconnect
the
negative
(-)
battery
cable
.
See
721
Airbag
System(SRS)
for
cautions

and
procedures
relating
to
the
airbag
system
.

DOOR
WINDOWs
512-
5

CAUTION-

"In
models
with
side-impact
airbags,
removing
the
front
window
requires
fhat
the
battery
cable
be
reconnected
with
the
side-impact
airbag
dis-
connected
.
This
will
set
a
fault
code
in
the
SRS
control
module,
turn
on
the
SRS
warning
light,
and
disable
the
SRS
system
until
the
fault
mem-
ory
is
cleared
using
special
SRS
test
equipment
.

"
Removing
the
front
window
will
upset
the
adjust-
ment
and
alignment
of
the
window
.
Window
ad-justment,
as
described
later,
must
be
carried
out
after
installation
to
prevent
damaging
the
glass
.

1.
On
carswith
side-impact
airbags,
disconnect
negative

(-)
cable
from
battery
.

CAUTION-

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

Fig
.
8
.



Remove
guide
rail
screw
(A)
and
move
rail
aside
.



2
.
Remove
interior
door
panel
and
vapor
barrier
.
See
411

Doors
.

3
.
Where
applicable,
remove
side-impact
airbag
from

door
.
See
721
Airbag
System
(SRS)
.

NOTE-

In
some
models
covered
in
this
manual,
it
is
notessen-
tial
to
remove
the
side-impact
airbag
lo
access
intemal
door
components
.
However,
the
procedure
is
recom-
mended
for
safety
reasons
.

4
.
Pull
off
exterior
doormolding
.
See
510
Exterior
Trim,

Bumpers
.

5
.
Lower
door
window
completely
If
necessary,
tempo-

rarily
reconnect
battery
cable
.

6
.
Lift
up
and
remove
window
innersealing
lip
.
Remove
all

metal
retainers
under
sealing
lip
.
See
Fig
.
9
.

NOTE
-

The
front
window
regulator
motors
must
be
re-initial-



7
.
Raise
window
to
about10
in
.
(250
mm)
.
If
necessary,

ized
after
repairs
are
carried
out
.
If
the
window
motors



temporarily
reconnect
battery
cable
.
Remove
guide

arenot
reinitialized,
the
programmed
one-touch



bracket
mounting
nuts
and
remove
bracket
.
See
Fig
.
up/down
and
anti-pinch
functions
will
be
disabled
.
See



10,

Front
doorwindow,
initializing
.

8
.
Lower
window
about
4'/2
in
.
(110mm)
.
If
necessary,
tem-

porarily
reconnect
batterycable
.
Working
through
bore

hole
in
door
exterior,
remove
lower
guide
bracket

through-bolt
from
glass
.
See
Fig
.
11
.

9
.
Lower
window
about
2'/2
in
.
(65
mm)
.
If
necessary,
tem-

porarily
reconnect
battery
cable
.
Repeat
step
8
to
re-

move
upper
through-bolt
from
guide
bracket
.

10
.
Raise
window
to
about
7
1
/2in
.
(190
mm)
from
top
.
If
nec-

essary,
temporarily
reconnect
batterycable
.
Remove

window
rear
limit
stop
bracket
.
See
Fig
.
12
.

WINDOW
SERVICE,
2-DOOR
MODELS

0013080
Fig
.
25
.
Reach
through
doorbottom
to
adjust
window
limit
stops
.
Rear
stop
beingadjusted
.

Rear
vent
window
or
vent
latch,

replacing
(2-door
modeis)

1
.
Remove
C-pillar
(rear
roof
pillar)
trim
.
See
Fig
.
26
.

0013069

Fig
.
26
.
C-pillar
trim
shown
removed
.
Peel
off
window
sealing
trím
and
then
unclip
pillar
trim
piece
.
Unplug
interior
light
socket
(ar-
row)
.

2
.
Remove
window
latch
screws
atC-pillar
.
See
Fig
.
27
.

DOOR
WINDows



512-11

0013070
Fig
.
27
.
Rear
vent
latch
screws
on
C-pillar
andon
window
(arrows)
.

3
.
Remove
front
seat
belt
sliding
anchor
trim
at
B-pillar
(door
post),
andremove
anchor
nut
.
See
Fig
.
28
.

Fig
.
28
.
B-pillar
seat
belt
anchor
trim
(arrow)
.

5
.
Remove
seat
belt
sliding
anchor
.
See
Fig
.
29
.

úulzoiz

4
.
PA
off
sliding
anchor
adjustíng
knob
.
Partially
pull

away
door
edge
and
vent
window
trimstrips
and
re-
move
top
B-pillar
plastic
trim
.

6
.
While
supporting
window,
remove
its
B-pillar
mounting
fasteners
.
See
Fig
.
30
.

7
.
Installation
is
reverseof
removal
.
Keep
in
mind
the
fol-

lowing
:

"
Plastic
sealing
washers
mustbe
installed
between
glass
and
body
on
forward
glass
mounting
studs
.
"
Reinstall
sealing
washers
on
both
sides
of
glass
at
rear

latch
attachment
.

WINDOW
SERVICE,
2-DOOR
MODELS

512-
1
2



DOOR
WINDOWS

Fig
.
30
.
Vent
window
mounting
nuts
on
B-pillar
(arrows)
.

WINDOW
REGULATOR
SERVICE

0013071

Fig
.
29
.
Seat
belt
sliding
anchor
mounting
bolts
on
B-pillar
(arrows)
.

Notedoor
post
and
vent
window
trim
strips
peeled
away
.

Tightening
Torques

"
Latch
to
vent
window
(M5
screw)
.....
6
Nm
(53
in-lb)

"
Seat
belt
anchor
nut
..............
31
Nm
(23
ft-Ib)

"
Seat
belt
sliding
anchor

mounting
bolts
.
..
...
.
...........
24
Nm
(17
ft-Ib)

"
Vent
window
to
body(M6
nut)
.....
6
.2
Nm
(55
in-lb)

WINDOW
REGULATOR
SERVICE

Door
window
regulator
and
motor,

removing
and
installing

This
procedure
applies
to
front
or
rear
door
windows
.

1
.
Remove
door
panel
and
vapor
barrier
as
described
in

411
Doors
.

WARNING
-

"
Some
1997
and
all
1998
model
year
cars
are

equipped
with
front
side-impact
airbags
in
the

front
doors
.
Whenever
servicing
the
doors
orwin-

dows
on
cars
with
front
side-impact
airbags,
al-

ways
disconnect
the
negative
(-)
battery
cable
.
See
721
Airbag
System
(SRS)
for
cautions
and
procedures
relating
to
the
airbag
system
.

"
Prior
to
disconnectiog
the
battery,
read
the
bat-tery
disconnection
cautions
gíven
at
the
front
of

this
manual
onpage
vi¡¡
.

2
.
Remove
door
glass
as
described
earlier
in
this
section
.

3
.
Remove
inside
door
handle
.
See
Fig
.
31
.

4
.
Disconnect
wiring
connector
to
power
window
motor
.

5
.
Remove
regulator
mounting
bolts
or
drill
out
rivets
.
See

Fig
.
32
.

0013193
0013072



Fig
.
32
.
Front
window
regulator
mounting
fasteners
(arrows)
.

6
.
Remove
regulator
assembly
fromdoor
.

The
left
latch
in
the
fully
automatic
version
hastwo
mi-
croswitches
(S7
and
S8)which
signal
open,
closed
and
latched
states
.
See
Fig
.
8
.

The
length
of
the
dead
center
point
rod
is
critica¡
lo
correct
opening
and
latching
of
the
convertible
top
.
See
Fig
.
9
.

Dead
Center
Point
Rod

"
Dimension
A
........
205
.5
f
1
mm
(8
.09
t0
.04
in)

Visor
Latch
Motor

The
fully
automatic
convertible
top
is
latched
and
unlatched
by
one
electric
motor
installed
in
the
front
roof
bow
.
To
re-
place,
remove
front
cover
trim
from
the
roof
.
Remove
electri-
cal
harness
connectors
from
motor,
andremove
mounting
screws
.
Slide
the
motor
off
the
output
shafts
to
the
left
and
right
latches
.

During
reinstallation,
theoutput
shafts
must
be
tumed
until
the
S8
microswitch
in
the
left
latch
is
tripped
.

Convertible
top
and
frame,
replacing

1
.
Open
convertible
top
partially
.
Open
convertible
top
lid
.



Fig
.
9
.



Preset
lengthof
dead
centerpoint
rod
.
Open
back
windows
.

2
.
Fully
automatic
power
convertible
top
:
Remove
front
cover
trim
from
top
.
Disconnect
electrical
harness
con-

nectors
from
frontlatch
motor
.
Disconnect
connectors

from
S7
and
S8
microswitches
at
left
latch
.

Motors
M1
Convertible
top
M2
Convertible
top
lid
M3Front
latch
(fully
automatic
top)

Microswitches
S1
&S2
In
convertible
top
motor
S3
In
convertible
top
storage
compartment
S4
In
top
linkage
(semi-automatic
only)
S5
In
luggage
compartment
latch
S6
In
right
convertible
top
lid
latch
S7&S8
In
left
conv
.
top
latch
(fully
automatic)

Fig
.
8
.



Locationof
automatic
and
semi-automatic
convertible
latch
mechanisms,
motors
and
microswitches
.

CONVERTIBLE
TOP



541-5

POWER
CONVERTIBLE
TOP

600-2



ELECTRICAL
SYSTEM-GENERAL

CAUTION
-

"
Always
turn
off
the
engine
and
disconnect
the

negative
()
cable
from
the
batterybefore
remov-

ing
any
electrical
components
.
Disconnecting
the

battery
may
erase
fault
code(s)
stored
in
control

module
memory
.
Check
for
fault
codes
using
spe-
cial
BMW
diagnostic
equipment
.

"
Prior
to
disconnecting
the
battery,
read
the
bat-

tery
disconnection
cautions
given
at
the
front
of

this
manual
onpage
viii
.

"
Connect
and
disconnect
ignition
system
wires,
multiple
connectors,
and
ignition
test
equipment
leads
only
while
the
ignition
is
off
.

"
Do
not
disconnect
the
battery
with
engine
run-

ning
.

"
Do
not
quick-charge
the
battery
(for
boost
start-
ing)
for
longer
than
one
minute,
and
do
not
ex-
ceed
16
.5
volts
at
the
battery
with
the
boosting
cables
attached
.
Wait
at
feast
one
minute
before
boosting
the
battery
a
second
time
.

"
Do
not
usea
test
famp
that
has
a
normal
incan-

descent
bulb
to
test
circuits
contafning
electronic
components
.
The
high
electrical
consumptionof
these
test
lamps
may
damage
the
components
.

"
Do
not
use
an
analog
meter
.
Use
onfy
a
digital
multimeter
.

"
Many
of
the
solid-state
modules
are
static
sensi-
tive
.
Static
discharge
will
permanently
damage
them
.
Always
handle
the
modules
using
proper
static
prevention
equipment
and
techniques
.

"
To
avoid
damaging
harness
connectors
or
relay
panel
sockets,
use
jumper
wires
with
flat-blade
connectors
that
are
the
same
size
as
the
connec-
tor
or
relay
terminals
.

"
Always
switch
a
digital
multimeter
to
the
appropri-
ate
function
and
range
before
making
test
con-
nections
.

"
Do
not
tryto
start
the
engine
of
a
carwhich
has
been
heated
above176°F
(80°C),
(for
example,
in
a
paint
dryingbooth)
.
Allow
it
to
cool
to
normal
temperature
.

"
Disconnect
the
battery
before
dolng
any
electric
welding
on
the
car
.

"
Do
not
wash
the
engine
while
it
is
runnfng,
or
any-
time
the
ignition
is
switched
on
.

WIRING
DIAGRAMS

Electrical
Test
Equipment

Many
of
the
electrical
tests
described
in
this
manual
call
for

measuring
voltage,
currentorresistanceusing
a
digital
multi-

meter
(DMM)
.
Digital
meters
are
preferred
for
precise
mea-

surements
and
for
electronics
work
because
they
are
generally
more
accuratethan
analog
meters
.
The
numerical

display
is
alsoless
likely
to
be
misread,
since
there
is
no
nee-

dle
position
to
be
misinterpreted
by
reading
at
an
angle
.

An
LED
test
light
is
a
safe,
inexpensive
tool
that
can
be
used

to
perform
many
simple
electrical
tests
that
would
otherwise

require
a
digital
multimeter
.
The
LED
indicates
when
voltage

is
present
between
anytwo
test-points
in
a
circuit
.

CA
UTION-

"
Choose
test
equipment
carefully
.
Use
a
digital

multimeter
with
at
leadt
10
megaohm
input
im-

pedance,or
an
LED
test
light
.
An
analog
meter
(swing-need1e)
ora
test
light
with
a
normal
incan-
descent
bulb
may
draw
enough
current
to
dam-
age
sensitive
electronic
components
.

"
An
ohmmeter
must
not
beused
to
measure
resis-
tance
on
solidstate
components
suchas
controlunits
or
time
delay
relays
.

"
Always
disconnect
the
battery
before
making
re-

sístance
(ohm)
measurements
on
the
circuit
.

WIRING
DIAGRAMS

The
wiring
diagrams
shown
in
Electrical
Wiring
Diagrams

have
been
specially
designed
to
enable
quick
and
efficientdi-

agnosis
and
troubleshooting
of
electrical
malfunctions
.

Wiring
Codes
and
Abbreviations

A
lot
of
information
is
included
in
each
wiring
diagram
if
you
know
how
to
read
them
.
Wire
colors
in
the
diagrams
are
ab-

breviated
.
Combined
color
codes
indicate
a
multi-colored
wire
.
For
example
the
code
BLU/RED
indicates
a
Blue
wire

with
a
Red
stripe
.

Many
electrical
components,
connectors,
fuses,
and

ground
locations
are
identified
using
a
unique
number
.
Each

of
there
numbers
corresponds
to
a
particular
part
in
the
circuit
commonly
found
in
Electrical
Wiring
Diagrams
.

611-2



WIPERS
AND
WASHERS

5
.
Slide
new
insert
through
wiperblade
guides
.
Lock
in-

sert
m
place
at
end
gudes
.

.,
\



-
-



--



,



1
Wiper
arms,
removing
and
installing

Fig
.
1
.



Windshield
wiper
biade
retaining
tab
.
Press
in
on
tab
(arrow)
to
release
bfade
from
arm
.

4
.
Installation
is
reverse
of
removal
.
Instan
wiperblade
to
wiper
arm
until
retaining
tab
can
be
heard
toclickinto
position
.

Wiper
biade
inserts,
replacing

1
.
Remove
wiper
blade
as
described
earlier
.

2
.
Unhook
end
of
wiper
blade
insert
fromwiper
arm

guides
.
See
Fig
.
2
.

0011784
Fig
.
2
.



Unhook
wiperbiade
insert
from
wiper
arm
guide
.
If
necessary,
guide
slightly
usingneed1e
nose
pliers
.

3
.
Pull
old
insert
fromwiper
arm
guides,
noting
installation
position
.

4
.
Remove
metal
support
strips
from
old
insert
and
instan
intoslots
in
new
insert,
noting
installation
direction
of
cutouts
in
support
strips
.

GENERAL

NOTE
-

The
notched
cutouts
in
the
retaining
strips
should
en-
gage
the
molded
notches
in
the
inserts
.

NOTE-

On
2-door
models
it
may
be
necessary
to
raise
the
hood
to
the
service
position
.
See
410
Fenders,
Engine
Hood
.

CAUTION-

"
Use
fender
cover
to
protect
windshield
.

"
Remove
windshield
wiper
fuse
to
prevent
acci-
dents
.

1.
With
engine
hood
in
closed
position,
remove
both
wiper

blades
.

2
.
Open
hood
.
Remove
cap
covering
wiper
arm
retaining

nutsby
inserting
anarrow
screwdriver
biade
in
slot
be-
low
capand
prying
upward
.

NOTE
-

Marking
position
of
wiper
arm
on
shaft
will
aid
installa-tion
.

3
.
Using
a13
mm
socket,
remove
wiper
arm
retaining
nut

andremove
wiper
arm
.
See
Fig
.
3
.

Fig
.
3
.



Wiper
arm
retaining
nut
.
(arrow)
.
,

NOTE
-

ft
may
benecessary
to
gently
rock
wiper
arm
back
and
forth
to
loosen
arm
from
shaft
.