1998 BMW 328i disconnecting battery

340-
8
BRAKES

Fig
.
10
.
Brake
fluid
linesat
master
cylinder
(arrows)
.

6
.
If
fluid
reservoir
was
removed,
install
it
carefully
using
new
sealing
grommets
.

7
.
Mount
master
cylinder
to
brake
booster
using
a
new
0-
ring
and
new
self-locking
nuts
.

CAUTION-

Use
cave
not
to
over-torque
the
master
cylinder
mounting
nuts
.
This
could
damage
the
brake
booster
and
prevent
proper
vacuum
build-up
.

0012164

8
.
Connect
all
brake
fluid
lines
.
Connect
hydraulic
clutch
hose
to
brake
fluid
reservoir
.

9
.
Reconnect
fluid
leve¡
sender,
and
bleed
entire
brake
systemas
described
earlier
.

BRAKE
BOOSTER

BRAKE
BOOSTER

The
brake
booster
is
mounted
to
the
bulkhead
on
the
driver
sideofthe
engine
compartment,
directly
behind
the
brake
master
cylinder
.
See
Fig
.
11
.

0015225
Fig
.
11
.
Brake
booster
(arrow)
.
A
is
vacuum
hose
from
intake
mani-
fold
.
B
is
one-way
valve
.
Intake
manifold
vacuum
acts
ona
large
diaphragm
in
the
brake
booster
to
reducebrake
pedal
effort
.

Brake
booster,
removing
and
installing

1
.
Disconnect
negative
(-)
cable
from
battery
.

CAUTION-

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

Tightening
Torque

"
Brake
master
cylinder
to



2
.
Using
a
clean
syringe,
empty
brake
(luid
reservoir
.

brake
booster
.....
..
.
..
.........
26
Nm
(18
ft-Ib)



WARNING-
"
Brake
fluid
hose
to
caliper
....
17-19
Nm
(13-14
ft-Ib)



Brake
fluid
is
highly
corroslve
and
dangerous
to
the
environment
.
Dispose
of
it
properly
.

3
.
Remove
brake
fluid
level
sender
connector
from
reser-
voir
cap
.

4
.
Disconnectbrake
fluid
lines
from
master
cylinder
.
Plug
openings
.

5
.
Disconnect
engine
vacuum
hose
from
brake
booster
.

Door
Hinge
Adjustment

If
the
installed
door
is
uneven
or
out
of
parallel,
shims
can
be
used
to
correct
its
position
.
The
shims
are
placedbehind
the
hinge
plate
and
are
available
in
two
different
thicknesses
(0
.5
mm
and
1
.0
mm)
.
See
Fig
.
4
.

Tightening
Torque

"
Door
hinge
to
door
.............
..
21
Nm
(15
.5
ft-I
b)
"
Door
striker
to
door
...........
...
25
Nm
(18
ft-Ib)

DOOR
PANELS

0
l
o
0013102

Fig
.
4
.



Door
hinge
and
door
check
components
.
Front
and
rear
doors
are
similar
.

WARNING
-

Some
1997
and
all
1998
cars
are
fitted
with
side-im-
pact
airbags
in
the
front
doors
.
When
servicing
doors
on
cars
with
front
side-impact
airbags,
always
dis-
connect
the
negative
()
battery
terminal
.
See
721
Airbag
System
(SRS)
for
cautions
and
procedures
relating
to
the
airbag
system
.

Front
door
trimpanel,
removing
and
in-

stalling

1
.
On
cars
with
side-impact
airbags,
disconnect
negative

(-)
battery
cable
.

CAUTION
-

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

Fig
.
5
.



Pry
outside
mirror
switch
from
door
armrest
.

3
.
Unscrew
door
locking
knob
.

Fig
.
6
.



Pry
off
plugs
(arrows)
and
remove
screws
.

DOORS
411-
3

2
.
Carefully
pry
out
mirror
adjustment
switch
and
discon-
nect
harness
connector
from
switch
.
Fig
.
5
.

5
.
Unclip
door
panel
from
door
perimeter
.
See
Fig
.
7
.

0013168

4
.
Pry
off
trim
cover
for
insíde
door
handle
.
Pry
off
con-
cealing
plugs
from
armrest
.
Remove
door
panel
retain-
ing
screws
.
See
Fig
.
6
.

UU13169

DOOR
PANELS

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)
.

512-
8



DOOR
WINDOWS

NOTE-

To
achieve
an
accurate
window
adjustment
in
2-door
models
with
"close
with
door
shut"
feature,
simulate
a
closed
dooras
follows
:
On
early
cars,
manually
turn
the

latch
on
the
door
to
the
closed
position
.
See
Fig
.
16
.
On

latercars,
insert
a
wedge
of
wood
into
the
striker
on
the

body
to
close
the
striker
switch
.
Be
sure
to
open
thero-
tary
latch
(by
pulling
upon
the
door
handle)
or
remove
the
wedge
before
closing
the
door
.

0013066

Fig
.
16
.
To
manually
close
door
latch,
push
rotary
latch
in
direction
of
arrow
.

CAUTION-

Do
not
close
the
door
with
therotary
latch
in

closed
position,
orwith
a
wedge
in
the
striker
.

WINDOW
SERVICE,
2-DOOR
MODELS

A
Window
insertion
depth
at
A-pillar
B
B-pillar
preload
gap
(measure
gap
at
20
mm
from
top
of
door)
C
Window
insertion
depth
at
roof
line/window
parallelism
(make
measurement
at
3
.5
in
.
and
16
in
.
from
B-pillar
edge)

Fig
.
17
.
2-door
window
adjustment
positions
.

NOTE-

In"



some
models
covered
inthis
manual,
it
is
not
es-

sential
to
remove
the
side-impact
airbag
to
access
in-
terna¡
door
components
.
However,
the
procedure
is
recommended
for
safety
reasons
.

"
After
each
adjustment
step,
fully
lower
and
raise
win-
dow
and
check
adjustment
before
goingon
to
the
next

step
.

"
1f
parts
of
the
front
window
mechanism
were
replaced,

make
sure
initial
adjustments
are
in
the
center
of
their
travel
range
.
Once
the
glass
isinstalled,
position
glass
to
the
rear
guide
rail
as
shown
in
Fig
.
18
.

4
.
To
set
window
preload
B
(See
Fig
.
1
g
.):

0013076

When
making
adjustments
to
the
front
door
window,
see



"
Measure
up
20
mm
(0
.75
in
.)
from
topof
door
and

Fig
.
17
.



mark
position
on
glass
.

"
Close
door
just
until
top
of
glass
contacts
seal
.
1
.
On
cars
with
side-impact
airbags,
disconnect
negative



"
Measure
gap
between
glass
(at
20
mm
mark)
and
win-

(-)
cable
from
battery
.



dow
seal
.

"
If
adjustment
is
necessary,
move
bottom
of
window

CAUTION-



guide
inor
out
to
correct
.
See
Fig
.
20
.

Prior
to
disconnecting
the
battery,
read
the
battery



"
If
further
adjustment
is
needed,
move
bottom
ofwin-

disconnection
cautionsgiven
at
the
front
of
this



dow
in
or
out
by
sliding
guide
bracket
.
Refer
to
Fig
.
18
.

manual
on
page
viii
.

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



Preload
Gap

Doors
.



"
B
(Referto
Fig
.
1
g
.)

Coupe
......................
.
.
.8
mm
(0
.32
in
.)

3
.
Where
applicable,



remove
side-impact
airbag
from



Convertible
..................
.
..
3
mm
(0
.12
in
.)

door
.
See
721
Airbag
System
(SRS)
.

513-2



INTERIOR
TRim

DASHBOARD

Dashboard
removal
is
a
complex
operation,
involving
dis-

connection
and
dismantling
of
a
number
of
electrical
and
dash

structural
components
.

The
BMW
E36
is
equipped
with
SRS
airbags
mounted
in

the
steering
wheel,
in
the
dashboard
(1994
and
later)
on
the

passenger
side,
and
in
the
front
doors(1997
and
later)
.
Air-

bags
units
are
pyrotechnic
devices
and
should
be
treated
with

extreme
caution
.
Improper
handling
of
the
airbags
could

cause
serious
injury
.

WARNING
-

"
The
BMW
Supplemental
Restraint
System
(SRS)
is
complex
and
special
precautions
must
be
ob-
served
when
servicing
.
Serious
injury
may
result
if
system
service
is
attempted
by
persons
unfa-
miliar
with
the
BMW
SRS
and
its
approved
ser-vice
procedures
.
BMW
specifies
that
all
inspection
and
service
shouldbe
performed
byan
authorized
BMW
dealer
.

"
Beforeperforming
any
work
involving
the
steering
wheel
or
interior
trim
in
the
vicinity
of
the
airbags,
disconnect
the
negative
()
battery
cable
.
See
721
Airbag
System
(SRS)
.

"
SRS
contains
aback-up
power
supply
within
the
SRS
control
module
.
A
10
minute
díscharge
peri-
od
should
be
allowed
after
the
battery
cable
has
been
disconnected
.

Glove
compartment,
removing
and
installing

1.
Open
glove
compartment
door
.

2
.
Remove
glove
compartment
mounting
screws
.
See
Fig
.
2
.

3
.
Pull
glove
compartment
out,
disconnecting
electrical

harness
connectors
as
necessary
.

4
.
Installation
is
reverse
of
removal
.

DASH80ARD

Fig
.
2
.



Glove
compartment
mounting
screws
(arrows)
.

Lower
left
dash
panel,

removing
and
installing

0013107

1
.
Remove
lower
dash
panel
retaining
screws
.
See
Fig
.
3
.

0013155

Fig
.
3
.



Lower
left
dash
panel
retaining
screws
(arrows)
.

2
.
Pull
lower
dash
panel
left
and
back
to
disengagefrom
driver's
footwell
retaining
clips
.

3
.
Installation
is
reverse
of
removal
.

515
Central
Locking
and
Anti-Theft

GENERAL
.....
.
.
.
.
.
.
.
..:
.
.
.
......
.
.
.
.
515-1



Luggage
compartment
locking
actuator,
removing
and
installing
.
.
.
.
.
...........
.
515-6

DOOR
HANDLES
AND
LOCKS
.........
515-1



LOCKING
SYSTEM
AND
Front
door
lock,
removing
and
installing
....
.515-1



ELECTRONIC
IMMOBILIZATION
......
.515-7
Front
door
handle,
removing
and
installing
...
515-3

Rear
door
lock,
removing
and
installing
.....
515-4



Central
Locking
System(ZVM)
.
.
.
.
.......
.
515-7

Rear
door
handle,
removing
and
installing
...
515-5



Central
Body
Electronics
(ZKE
IV)
.
.
.......
.515-8

Electronic
Immobilization
System
(EWS)
.
.
.
.
.515-8
Door
striker,
rep
lacing
.
.
.
.
.
.
.
.
.
..........
515-6



EWS
II
control
module,
re
lacin



515-10

LOCKING
ACTUATORS
.
.
.
.
.
.
..........
515-6



Ring
antenna,
replacing
.
.
.
.
.
.
.
.
.
.
...
.
.
.
.
515-10

Door
Locking
Actuator
.
.
.
.
.
.
.
.
..........
515-6



EWS
II
transmitter/receiver
module,

replacing
...........
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
515-11

GENERAL

This
section
covers
repair
information
for
the
central
locking

and
the
anti-theft
systems
.
Keep
in
mind
that
E36
cars
are



CA
UTION-

equipped
with
sophisticated
and
self-diagnostic
electrical
sys-



Prior
to
disconnecting
the
battery,
read
the
battery

tems
.
When
experiencing
malfunctions
relatinglo
the
central



disconnection
cautions
given
at
the
front
of
this

locking
or
the
anti-theft
system,
it
is
recommended
that
the



manual
onpage
vi¡¡
.

systembe
diagnosed
using
the
BMW
service
tester
(DIS)
.

This
advanced
diagnostic
tool
can
usually
pinpoint
electrical



NOTE-
faults
quickly
and
safely
.
Consult
an
authorized
BMW
dealer
.
In
some
models
covered
inthis
manual,
it
is
not
essen-
tial
to
remove
the
side-impact
airbag
to
access
intemal

NOTE-



door
components
.
However,
the
procedure
is
recom-

Additional
general
electrical
information
can
be
found



mended
for
safely
reasons
.

i
n
610
Electrical
Component
Locations
and
Electri-
cal
Wiring
Diagrams
.



4
.
Disconnect
harnessconnector
from
window
motor
to

DOOR
HANDLES
AND
LOCKS

Front
door
lock,
removing
and
installing

1
.
Remove
front
door
panel
and
vapor
barrier
asde-

scribed
in
411
Doors
.

WARNING
-

Some
1997
and
all
1998
cars
are
fitted
with
side-im-

pact
airbags
in
the
front
doors
.
When
servicing
the
door
locks
on
cars
with
front
side-impact
airbags,
al-
ways
disconnect
the
negative
(-)
battery
terminal
.
See721
Airbag
System
(SRS)
forcautions
andpro-
cedures
relating
to
the
airbag
system
.

2
.
Raise
door
window
completely

CENTRAL
LOCKING
AND
ANTI-THEFT



515-1

3
.
On
cars
with
side-impact
airbags,
disconnect
negative
(-)
cable
from
battery,
then
remove
airbag
module
.

prevent
accidental
operation
.

5
.
On
4-door
cars
:
Peel
back
rubber
window
guide
from

reas
guide
rail
:
Remove
guide
rail
mounting
boltat
bot-

tom
.
Unclip
any
wiring
from
guide
rail
and
pull
guide
rail

downward
and
remove
from
door
.
See
Fig
.
1
.

NOTE
-

The
top
of
the
guide
rail
is
"hooked"
to
the
doorsheet
metal
.

6
.
Remove
inside
door
handle
retaining
screw
.
Discon-

nect
inside
handle
from
linkage
and
remove
.
See
Fig
.

2
.

7
.
Cut
wire
ties
and
remove
door
lock
electrical
harness
con-

nector
.
Remove
door
lock
mounting
screws
.
See
Fig
.
3
.

8
.
Working
inside
door,
disconnect
outside
door
handle

and
lockcylinder
linkage
from
door
lock
.
Remove
lock

from
inside
door
.
See
Fig
.
4
.

DOOR
HANDLES
AND
LOCKS

Front
door
handle,
removing
and
installing

1
.
Closedoor
window
completely
.

2
.
Remove
front
door
panel
and
vapor
barrier
asde-
scribed
in
411
Doors
.

WARNING
-

Some
1997
and
al]
1998
cars
are
fitted
with
side-im-
pact
airbags
in
the
front
doors
.
When
servicing
the
door
handles
on
cars
with
front
side-impact
airbags,
always
disconnect
the
negative
(-)
battery
terminal
.
See
721
Airbag
System
(SRS)
for
cautions
and
pro-
cedures
relatíng
to
the
airbag
system
.

3
.
On
carswíth
side-impact
airbags,
disconnect
negative

(-)
cable
from
battery,
then
remove
airbag
module
.

CAUTION-

Prior
to
disconnecting
the
battery,
read
the
battery
disconnection
cautions
given
at
the
front
of
thís
manual
onpage
vi¡¡
.

NOTE-

In
some
models
covered
inthis
manual,
it
is
not
essen-
tial
to
remove
the
side-impact
airbag
to
access
internal
door
components
.
However,
the
procedure
is
recom-
mended
for
safety
reasons
.

4
.
Remove
door
lock
as
described
earlier
.

5
.
Remove
window
as
described
in
512
Door
Windows
.

CA
UTION-

On
models
with
side-impact
airbags,
removinglin-
stalling
the
front
window
requires
that
the
battery
cable
bereconnected
wíth
the
side-impact
airbag
disconnected
.
This
will
seta
fault
code
in
the
SRS
control
module,
turn
on
the
SRS
warning
light,
and
disable
the
SRS
system
until
the
fault
memo-
ry
is
cleared
usíng
special
SRS
test
equipment
.

6
.
Pry
out
access
plug
in
end
of
door
.
Use
screwdriver
through
access
hole
to
slide
exteriortrim
locking
plate
into
released
position
.
See
Fig
.
5
.
Remove
doorhandle
exterior
trim
piece
.

7
.
Working
inside
door,
remove
locking
clip
for
doorhan-

dle
retaining
pin
and
push
pin
out
.

8
.
Working
inside
door,
disconnect
electrical
harness
con-

nector
at
door
handle
.
Twist
plastic
connector
bracket

to
remove
from
door
handle
.

CENTRAL
LOCKING
AND
ANTI-THEFT



515-
3

0011681
Fig
.
5
.



Insert
screwdriver
into
access
hole
and
push
lockingplate
forward
(arrow)
to
release
exterior
handle
trim
.

uu11682

Fig
.
6
.



Door
handle
retaining
pin(A)
and
lock
collar
nut
(B)
.
Door
handle
trim
shown
removed
.

10
.
Remove
door
handle
fromdoor
by
angling
out
of
door
cavity
.
Removed
door
handle
assembly
is
shown
in
Fig
.
7
.

0012684
Fig
.
7
.



Door
handle
harnessconnector
(A)
;
retaining
pin
Iocking
clip
9
.
Working
at
door
exterior,
remove
handle
collar
nut



(B)
;
exterior
trim
Iocking
plate
(C)
.
Handleassembly
shown
re-
while
supporting
handle
.
See
Fig
.
6
.



moved
from
door
.

DOOR
HANDLES
AND
LOCKS

515-10



CENTRAL
LOCKING
AND
ANTI-THEFT

EWS
II
control
module,
replacing

1
.
Disconnect
negative
(-)
cable
from
battery
.

CAUTION-

Prior
to
disconnecting
the
battery,
read
the
battery

disconnection
cautions
given
at
the
front
of
this
manual
onpage
vüf
.

2
.
Remove
glove
compartment
as
described
in
513
Inte-

rior
Trim
.

3
.
Remove
EWS
II
control
module
harness
connector
.

Pull
module
out
of
bracket
.
See
Fig
.
22
.

NOTE-

The
EWS
11
module
should
be
identified
with
EWS
11
markings
.

4
.
Installation
is
reverse
of
removal
.

Ring
antenna,
replacing



4
.
Cut
off
wire
ties
holding
wiring
harness
to
steering
col-

umn
.
1
.
Disconnect
negative
(-)
cable
from
battery
.

CAUTION
-

Prior
to
disconnecting
the
battery,
read
the
battery

disconnectioncautionsgiven
at
the
front
of
this
manualonpage
viii
.

2
.
Remove
lower
steering
column
cover
.
See
Fig
.
23
.

Transmitter/

receiver
Ring

r
module
antenna

Fig
.
22
.
Location
of
EWS
II
components
.

LOCKING
SYSTEM
AND
ELECTRONIC
IMMOBILIZATION

Fig
.
23
.
Steering
column
cover
retaining
screw
(arrow)
.

5
.
Gently
pry
off
ring
antenna
from
ignition
switch
.

7
.
Installation
is
reverse
of
removal
.

0012543

3
.
Remove
lower
left
dash
trim
panel
as
described
in
513

Interior
Trim
.

6
.
Unplug
ring
antennaharness
from
EWS
II
transmit-

ter/receiver
module
as
described
below
.