water pump BMW 318i 1997 E36 Workshop Manual
Page 17 of 759
Solt
Diameter
and
Wrench
Size
"
M5
.
...
............
....
......
.
.......
8
mm
"
M6
.
.
..............
.
.
...
...........
.10
mm
"
M8
.
.
..............
.
.
..
.....
12mmor13mm
"
M10
..
.............
.
.
...
...........
.17
mm
"
M12
...
...........
..
.
..
............
.19
mm
"
M14
.
..:
.
.........
..
.
..
.............
22
mm
Spark
Plug
Socket
.
A
special
socket
for
spark
plugs
is
the
correct
size,
is
deep
enough
to
accommodate
a
spark
plug's
length,
and
includes
a
rubber
insertto
both
protect
the
spark
plug
from
damage
and
grip
it
for
easier
removal
.
See
Fig
.
9
.
Fig
.
9
.
Spark
plug
socket
.
FUNDAMENTALS
FOR
THEDO-ITYOURSELF
OWNER
010-
9
B003FNG
Pliers
.
A
few
of
the
many
types
ofpliers
are
shown
in
Fig
.
10
.
Mostare
used
for
holding
irregularobjects,
bending,or
crimp-
ing
.
Some
have
special
applications
.
A
needlenose
plier
is
used
for
gripping
small
and
poorly
ac-
cessible
objects,
and
is
useful
for
wiring
and
other
electrical
work
.
A
locking
plier
suchas
theVise-Grip
®
is
useful
because
of
its
tightgrip
.
Snap-ring
and
circlip
pliers
withspecial
tipped
jacas
areused
lo
remove
and
install
snap-ringsor
circlips
.
A
Channel-lock®
or
water
pump
plier
has
adjustable
jacas
that
can
be
quickly
changed
to
match
the
size
of
the
object
being
held
to
give
great-
erleverage
.
An
adjustable
wrench
canbea
useful
addition
to
a
small
tool
kit
.
See
Fig
.
11
.
It
can
substitute
in
a
pinch,
if
two
wrenches
of
the
same
size
are
needed
lo
remove
a
nut
and
bolt
.
Use
extra
care
with
adjustable
wrenches,
as
they
tend
to
loosen,
slip,
and
damage
fasteners
.
Fig
.
11
.
Adjustable
wrench
.
B008FNG
Compared
to
a
wrench
of
the
correct
size,
an
adjustable
wrench
is
always
second
best
.
They
shouldonly
beused
when
the
correct
size
wrench
is
not
available
.
Choose
one
of
average
size
range,
about
6
to
8
inches
in
length
.
Jack
Stands
Strong
jack
stands
are
extremely
important
for
any
work
that
is
done
under
thecar
.
Use
onlyjack
stands
that
are
designed
for
the
purpose
.
Blocks
of
wood,
concrete,
bricks,
etc
.
arenot
safeor
suitable
substitutes
.
WARNING
-
A
jack
should
be
used
only
to
raise
the
vehicle
and
shouldnot
beused
to
support
the
car
for
a
long
pe-
riod
.
Always
use
jack
stands
to
support
a
raised
ve-
hicle
.
Jack
standsare
available
1n
severa¡
styles
.
A
typical
jack
stand
is
shown
in
Fig
.
12
.
The
best
ones
are
made
of
heavy
ma-
terial
for
strength,
have
a
wide
base
for
stability,
and
are
equipped
lo
positively
lock
in
their
raised
positions
.
Get
the
best
ones
available
.
Oil
Change
Equipment
Changing
engine
oil
requires
a
17mm
socket
or
wrench
to
BOO6FNG-
loosen
and
tighten
the
drain
plug
and
a
drain
pan
(at
least
8
qt
.
capacity)
.
An
oil
filter
wrench
is
not
required
.
These
items
are
Fig
.
10
.
Pliers
.
From
left,
snap-ring,
needlenose,
adjustable-joint
shown
in
Fig
.
13
.
A
wide,
loca
drain
pan
wíll
fit
more
easily
under
(Channellock©),
slip-joint,
and
locking(Vise-Grip®)
.
the
car
.
Use
a
funnel
lo
pour
the
new
oil
into
theengine
.
TOOLS
Page 20 of 759
010-12
FUNDAMENTALSFOR
THE
DO-IT
YOURSELF
OWNER
Jump
Starting
Car
Cars
with
discharged
or
dead
batteries
can
be
jump-started
using
the
good
battery
from
another
car
.
When
jump-starting
the
engine,
always
note
the
following
warnings
.
WARNING
-
"
Battery
acid
(electrolyte)
can
cause
severe
burns,
and
will
damage
the
car
and
clothing
.
lf
electrolyte
is
spilled,
wash
the
surface
with
large
quantities
of
water
.
lfit
gets
finto
eyes,
flush
them
with
water
for
severa¡
minutes
and
cal¡
a
doctor
.
"
Batteries
produce
explosive
and
noxious
gas-
ses
.
Keep
sparks
and
flames
away
.
Do
not
smoke
near
batteries
.
"
Do
not
jump-start
the
engine
if
you
suspect
that
the
battery
is
frozen
.
Trapped
gas
may
explode
.
Allow
the
battery
to
thaw
first
.
"
Do
not
quick-charge
the
battery
(for
boost
start-
ing)for
longer
than
one
minute,
and
donot
ex-
ceed
15
volts
at
the
battery
with
the
boosting
cables
attached
.
Wait
at
least
one
minutebefore
boosting
the
battery
a
second
time
.
"
Some
electrical
system
'comfort"
features
may
not
function
correctly
once
battery
power
is
restored
.
For
example,
the
front
window
one-touch-up
func-
tion
may
be
disabled
.
Some
electrical
systems
will
need
to
be
reinitialized
Consult
the
appropriate
re-
pairgroup
formore
specific
information
.
1
.
Place
cars
close
together,
but
do
not
allow
them
to'touch
each
other
.
Turn
off
the
engine
of
thecar
with
the
good
battery
.
2
.
Connect
oneend
of
the
positive
(+)
cable
to
the
positive
(+)
post
of
the
good
battery
.
Remove
the
coverfromthe
positive
(B+)
junction
post
in
the
engine
compartment
of
the
dead
car
and
connect
the
other
end
of
the
posi-
tive
(+)
cable
to
the
junction
post
.
See
Fig
.
17
.
EMERGENCIES
3
.
Connect
one
end
of
the
negative
(-)
cable
to
the
nega-
tive
(-)
battery
post
of
the
good
battery
.
Connect
oppo-
site
end
of
the
negative
cable
(-)
to
the
engine
block
of
thecar
with
the
dead
battery
.
4
.
Start
thecar
with
the
good
battery
and
runthe
engine
at
about2,000
rpm,
then
start
the
car
with
the
dead
bat-
tery
.
5
.
With
the
engine
at
¡dle,
switch
on
the
headlights,
blower
motor
and
rear
window
defogger
to
avoid
damaging
the
cars
electrical
system
.
Carefully
disconnect
the
jumper
cables,
starting
with
the
negative
cable
on
the
engine
block
.
Turn
all
electrical
consumers
off
.
NOTE-
The
engineshould
be
run
for
at
least
an
hour
to
re-
charge
the
battery
.
Overheating
lf
the
temperature
gauge
needle
goes
into
the
red
band
on
the
gauge
face,
the
coolant
temperature
is
too
high
.
Find
a
safe
place
to
stop
and
turn
the
engine
off
.
Open
the
hood
and
allow
the
engine
to
cool
until
the
temperature
gauge
needle
is
at
the
lower
thirdof
the
scale
.
Continuing
to
drive
an
overheated
car
can
cause
extensive
engine
damage
.
WARNING
-
Do
not
remove
the
coolant
reservoir
or
radíator
cap
with
the
engine
hot
.
Undoing
either
couldspray
hot
coolant
and
cause
burns
or
damage
the
engine
.
CAUTION-
Do
not
add
cold
water
or
coolant
to
a
hot
engine
.
Engine
damage
could
result
from
the
sudden
tem-
perature
change
.
NOTE-
If
the
enginecannot
be
safely
tumed
off,
make
sure
the
air
condifioner
isoff
and
turn
the
heater
to
high
.
This
will
helo
cool
the
engine
until
a
salestopping
place
canbe
reached
.
Overheating
may
be
caused
bylow
coolant
leve¡
or
a
dam-aged
engine
drive
belt
.
Visually
check
the
coolant
leve¡
and
en-
gine
belts
as
described
in
020
Maintenance
Program
.
lf
the
coolant
leve¡
is
low,
check
the
filler
cap,hoses,
clamps
and
ra-
diator
for
signs
of
leakage
.
Check
for
leaks
at
the
water
pump
on
the
frontof
theengine
.
lf
no
leaks
are
found,
add
coolant
after
the
engine
has
cooled
.
The
carcan
be
driven,
but
have
the
cooling
system
thoroughly
checked
assoonas
possible
.
lf
replacement
cool
0013245
-
ant
is
not
available,
then
plain
water
canbe
used,
butthe
cool-
antshould
later
be
drained
and
refilled
with
theproper
mixture
Fig
.
17
.
Battery
jump
starting
posts
(arrows)
behind
right
frontstrut
of
anti-freeze
and
water
.
tower
.
Lift
cover
to
access
positive
post
.
Page 22 of 759
010-14
FUNDAMENTALS
FOR
THE
DO-ITYOURSELF
OWNER
Fig
.
19
.
Instaf
rear
tow
lug
into
threaded
hole
.
if
absolutely
necessary,
cars
with
automatic
transmissions
can
be
towed
with
the
rear
wheels
on
the
ground,
butthe
tow
should
not
exceed
25
miles
(40
km),at
speeds
at
or
below30
mph
(35
km/h)
.
Be
sure
the
transmission
fluid
hasbeen
topped
off
before
starting
the
tow
.
Always
tow
thecar
with
the
transmis-
sion
lever
in
"N"
(neutral)
.
If
the
tow
must
exceed25
miles
(40
km),
add
one
quart
of
ATF
to
the
transmission,
or
better
yet,
re-
move
the
driveshaft
.
Be
sure
to
drain
or
pump
outthe
added
flu-
id
once
the
tow
has
been
completed
.
NOTE-
"
ATF
draining
and
filling
is
covered
in
240
Automatic
Transmission
.
"
Driveshaft
removal
is
covered
in
260
Driveshaft
.
EMERGENCIES
úo1W¿b
Spare
Parts
Kit
Carrying
a
basic
set
of
spare
parts
can
prevent
a
minor
breakdown
from
turning
into
a
major
annoyance
.
Many
of
the
following
itemswon't
allow
you
todo
major
repair
workon
the
car,
but
they
will
help
in
the
event
of
the
failure
of
something
that
can
disable
thecar
or
compromise
its
safety
.
Spare
Parts
Kit
-
Basic
Contents
"
Drive
belt
(V-belt
or
poly-ribbed)
"
Engine
oil
(one
or
two
quarts)
"
Engine
coolant
(1
gallonof
premixed
50/50
anti-freeze
and
water)
"
Fuse
assortment
(7
.5A,
10A,
15A,
20A)
"
Radiator
hoses
(upper
and
lower)
Spare
Parts
Kit
-
Additional
Contents
"
Exterior
lighting
bulbs
(headlight,
brakelight,
turn
signal,
and
taillight)
"
Wiper
biades
"
Brake
fluid
(new
unopened
bottle,
DOT
4
specification)
"
Main
relay
for
DME
system
Page 41 of 759
NOTE-
Use
a14
mm
or17
mm
alíen
bit
socket
to
remove
the
drain
plug
.
"
If
thecar
is
raised
in
the
air,
it
shouldbe
leve¡
.
Fuel
tank
and
fuel
fines,
inspecting
0012474
Inspect
the
fuel
tank,
fuel
lines,
and
fuel
system
for
damage
or
leaks
.
Check
for
fuel
leaks
in
the
engine
compartment
or
fuel
odors
in
the
passenger
compartment
.
Check
for
faultyfuel
lines
bybending
them
.
If
any
leaks
are
present,
fuel
should
be
expelled
.
Check
for
any
evaporative
emissions
hoses
that
may
have
become
disconnected,
checking
carefully
at
the
charcoal
canister
and
evaporative
emissionspurge
system
.
See130
Fuel
Injection
and
160
Fuel
Tank
and
Fuel
Pump
for
component
locations
and
additional
information
.
WARNING
-
When
checking
for
fuel
leaks,
the
engine
must
be
cold
.
A
hot
exhaust
manifold
or
exhaust
system
could
cause
the
fuel
to
ignite
or
explode
causing
se-
rious
personal
injury
.
Uentilate
the
workarea
and
clean
up
spilled
fuel
immediately
.
Clutch
fluid,
checking
The
hydraulic
clutch
and
the
brake
system
share
the
same
reservoir
and
the
same
brake
fluid
.
Clutch
fluid
leve¡
and
brake
fluid
level
are
checked
at
the
same
time
.
See340
Brakes
for
more
information
.
See210
Clutch
for
information
on
the
clutch
and
the
hydraulic
clutch
operating
system
.
MAINTENANCE
PROGRAM
020-19
Drive
axie
joint
boots,
inspecting
100
Engine-General
The
protective
boots
must
be
closely
inspected
for
cracks
andany
other
damage
that
will
allow
contaminants
to
get
ínto
the
joint
.
If
the
rubber
boots
faf
,
the
water
and
dirt
that
enter
the
joint
will
quickly
damage
¡t
.
Replacement
of
the
drive
axle
joint
boots
and
inspection
of
the
joints
are
described
in
330
Rear
Suspension
.
BODY
AND
INTERIOR
MAINTENANCE
Windshield
Wiper
Biade
Maintenance
Common
problems
with
the
windshield
wipers
include
streaking
or
sheeting,
water
drops
after
wiping,
and
blade
chat-
ter
.
Streaking
is
usually
caused
when
wiper
blades
are
coated
with
road
film
or
car
wash
wax
.
Clean
the
blades
using
soapy
water
.
If
cleaning
theblades
does
not
cure
the
problem
then
they
should
be
replaced
.
BMW
recommends
replacing
the
wip-
er
blades
twice
a
year,
before
and
after
the
cold
season
.
Onold-
er
cars,
check
the
tension
spring
that
holds
the
wiper
to
the
glass
.
Replace
the
wiper
arm
if
the
springs
are
weak
.
Drops
that
remainbehind
after
wipingare
caused
by
oil,
road
film,
or
diesel
exhaust
coating
the
windshield
.
Use
an
alcohol
or
ammonia
solution,
or
a
non-abrasive
cleanser
to
clean
the
windshield
.
Wiper
blade
chatter
may
be
caused
by
dirty
or
worn
blades,
bya
dirty
windshield,
or
by
bentor
twisted
wiper
arms
.
Clean
the
blades
and
windshield
as
described
above
.
Adjust
the
wiper
arm
so
that
there
is
even
pressure
along
the
blade,
and
so
that
the
blade
is
perpendicular
to
the
windshield
atrest
.
Lubricate
the
wiper
linkage
with
a
light
oil
.
The
linkage
is
located
under
the
hood
on
the
drivers
side
.
If
the
problem
persists,
theblades
are
excessively
aged
or
worn
and
should
be
replaced
.
See
611
Wipers
and
Washers
.
Body
and
hinges,
lubricating
The
door
locks
and
lock
cylinders
canbe
lubricated
with
an
oil
that
contains
graphite
.
The
body
and
door
hinges,
the
hood
latch,
and
the
door
check
rods
should
be
lubricated
with
SAE
30
or
SAE
40
engine
oil
.
Lubricate
the
seat
runners
with
multipurpose
grease
.
Do
not
apply
any
oil
to
rubber
parts
.
If
door
weatherstrips
are
sticking,
lubricate
them
with
silicone
spray
or
talcum
powder
.
The
hood
release
cable
should
be
lubricated
as
well
.
The
use
of
winter
lock
de-icer
spraysshould
be
kept
to
an
ab-
solute
minimum,
as
the
alcohol
in
the
de-icer
will
wash
the
grease
out
of
the
lock
assemblies,
and
may
cause
the
locks
to
corrode
internally,
or
become
difficult
to
operate
.
ENGINE-GENERAL
100-1
Page 196 of 759
170-2
RADIATOR
AND
COOLING
SYSTEM
Cooling
Fans
TROUBLESHOOTING
Belt-driven
coolingfan
.
The
primary
cooling
fan
is
belt-
driven
.
It
is
mounted
to
the
frontof
the
coolant
pump
through
a
fan
clutch
.
The
fan
clutch
is
a
viscous
fluid
coupling
that
con-
trols
the
speed
of
thefan
based
on
engine
compartment
tem-
perature
.
Electric
cooling
fan
.
Models
with
M44
engine
and
stan-
dard
transmission
substitute
an
electric
fan
for
the
belt-driven
viscous
fan
.
This
is
attached
to
the
rear
of
the
radiator
and
controlledvia
the
DME
5
.2
engine
management
system
.
NOTE-
The
electric
cooling
fan
in
these
models
is
activated
by
the
engine
control
module
(ECM)
.
Auxiliary
coolingfan
.
In
al¡
models
a
two-speed
electric
auxiliary
cooling
fan
is
mounted
behind
the
front
grill
and
in
front
of
the
radiator
.
This
fan
is
primarily
used
for
the
A/C
sys-
tem,
but
also
operates
when
the
coolant
temperature
ex-
ceeds
a
predetermined
leve¡
.
Warnings
and
Cautions
The
following
warnings
and
Cautions
should
beobserved
when
working
on
the
cooling
system
.
WARNING
-
"
Atnormal
operating
temperature
the
cooling
sys-
tem
is
pressurized
.
Allow
the
system
to
cool
as
long
as
possible
before
opening-a
minimum
of
an
hour-then
release
the
cap
slowly
to
allow
sale
release
of
pressure
.
"
Releasing
the
cooling
system
pressure
lowers
the
coolants
boiling
point
and
the
coolant
may
boíl
suddenly
.
Use
heavy
gloves
and
wear
eye
and
laceprotection
to
guard
against
scalding
.
"
Use
extreme
care
when
draining
and
disposing
of
engine
coolant
.
Coolant
is
poisonous
and
lethal
to
humans
and
pets
.
Pets
are
attracted
to
coolant
because
of
its
sweet
smell
and
taste
.
Consult
a
veterinarian
immediately
if
coolant
is
ingested
byan
animal
.
CAUTION-
"
Avoidadding
cold
water
to
the
coolant
while
the
engine
is
hot
or
overheated
.
If
it
is
necessary
to
add
coolant
to
ahot
system,
do
so
only
with
the
engine
running
and
coolant
pump
tuming
.
"
Prior
to
disconnecting
the
battery,
read
the
bat-
tery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
viii
.
TROUBLESHOOTING
Most
cooling
system
faults
can
be
grouped
into
one
of
three
categories
:
"
Cooling
system
leaks
"
Poor
coolant
circulation
"
Radiator
cooling
fan
faults
When
investigating
the
cause
of
overheating
or
coolant
loss,
begin
with
a
visual
inspection
.
Be
sure
to
check
the
con-
dition
and
tension
of
the
coolant
pump
drive
belt
.
Check
hoses
for
cracks
or
softness
.
Check
clamps
for
looseness
.
Check
the
coolant
leve¡
and
check
for
evidence
of
coolantleaks
from
the
engine
.
Check
that
the
radiator
fins
are
not
blocked
with
dirt
or
de-
bris
.
Clean
the
radiator
using
low-pressure
water
or
com-
pressed
air
.
Blow
outward,
fromthe
engine
side
out
.
Inspect
the
coolant
pump
by
first
removing
the
drive
belt
from
the
pump
.
Firmly
grasp
opposite
sídes
of
the
pulley
and
check
for
play
in
all
directions
.
Spin
the
pulley
and
check
that
the
shaft
runs
smoothly
.
NOTE-
The
coolant
provides
lubrication
for
the
pump
shaft,
soan
occasional
drop
of
coolant
leaking
from
the
pump
is
acceptable
.
If
coolant
drips
steadily
from
the
vent
hole,
the
pump
should
be
replaced
.
The
cooling
system
becomes
pressurized
at
normal
operat-
ing
temperature,
which
raises
the
boiling
point
of
the
coolant
.
Leaks
may
prevent
the
system
from
becoming
pressurized,
allowing
the
coolant
to
boil
at
a
lower
temperature
.
If
visual
ev-
idence
is
inconclusive,
a
cooling
system
pressure
test
can
help
to
pinpointhard-to-find
leaks
.
If
the
cooling
system
is
full
of
coolant
and
holds
pressure,
the
next
most
probable
cause
of
overheating
are
:
"
Faulty
radiator
fan
"
Loose
or
worn
drive
belt
"
Failed
thermostat
or
coolant
pump
"
Clogged/plugged
radiator
or
coolant
passages
.
NOTE
-
"
Some
early
style
coolant
pumps
were
fitted
wíth
fi-
berlplastic
type
impellers
.
Over
time,
this
impeller
can
wear
away
and
result
in
overheating
.
The
plastic
im-
peller
can
also
slip
or
free-wheel
on
the
pump
shaft
.
If
the
engine
overheats
and
no
other
faults
canbe
found,
theold
style
impeller
may
be
the
cause
of
the
problem
.
"
Only
pumps
with
the
updated
metal
impeller
should
be
used
for
replacement
.
Page 291 of 759
Brake
rotor,
removing
and
installing
.
.
.
.
.
.
.
.
340-7
MASTER
CYLINDER
............
.
.
.
.
.
.
.340-7
Master
cylinder,
removing
and
installing
.
...
.
340-7
GENERAL
TROUBLESHOOTING
WARNING
-
"
Although
semi-metallic
and
metallic
Brake
friction
materials
in
Brake
pads
or
shoes
no
longer
con-
tain
asbestos,
they
produce
dangerous
dust
.
"
Brake
fluid
is
poisonous,
highly
corrosive
and
dangerous
to
the
environment
Wear
safety
glasses
and
rubber
gloves
when
working
with
Brake
fluid
.
Do
not
siphonBrake
fluid
with
your
mouth
.
Immediately
clean
away
any
fluid
spilled
on
painted
surfaces
and
wash
with
water,
asBrake
fluid
will
remove
paint
.
"
Always
use
new
Brake
fluid
froma
fresh,
un-
opened
container
.
Brake
fluid
will
absorb
mois-
ture
from
the
air
.
This
canlead
to
corrosion
problems
in
the
brakingsystem,
and
will
also
low-
er
the
Brake
fluid's
boiling
point
.
Dispose
of
Brake
fluid
properly
.
"
Do
notreuse
self-locking
nuts,bolts
or
fasteners
.
They
are
designed
to
be
used
only
once
and
may
failif
reused
.
Always
replace
them
with
new
self-
locking
fasteners
.
BMW
E36
models
areequipped
with
vacuum
power-assist-
ed
four-wheel
disc
brakes
with
an
integral
Antilock
Brake
Sys-
tem
(ABS)
.
Single-pistoncalipers
act
on
solid
or
vented
front
rotors
and
solid
rear
rotors
.
A
brake
pad
wear
sensor
for
each
axle
indicates
when
brake
padsneed
replacement
.
The
dual
drum-type
parking
brakesystem
is
integrated
with
the
rear
brake
rotors
.
NOTE-
M3
models
havevented
directional
Brake
rotors
on
the
rearaxle
as
well
ason
the
front
.
340
Brakes
BRAKES
340-1
GENERAL
.
.
.
.
.
.
.........
.
.
.
..........
340-1
BRAKE
BOOSTER
.........
.
.
.
.
.
...
.
.
.
.
340-8
TROUBLESHOOTING
.......
.
......
.
...
340-1
Brake
booster,
removing
and
installing
....
.
.
340-8
PARKING
BRAKE
.
.....
.
...
.
.
.
.....
.
.
.
340-10
BLEEDING
BRAKES
.
.
.
.
.
.
.
.
..........
340-3
Parking
brake,adjusting
.
.
.
.
.
.
.
.
.
.
.....
.
340-10
Pressure
bleeding
brakes
Parking
brake
shoes,
removing
and
installing
.
340-11(except
cars
with
AST)
.
.
.
.
.
.
.
.
.
...
.
.
.
.
.340-3
Parking
Brake
cable,
replacing
.
.
.
.
.
.
.
.
.
.
.
.
340-11
BRAKE
PADS,
CALIPERS,
ANTILOCK
BRAKE
SYSTEM
(ABS)
.
.
.
.340-11
AND
ROTORS
..........
.
.......
.
.
.
.
.
.
.
340-3
ABS
System
Inspection
.
...
.
.......
.
.
.
..
340-12
Brake
pads,
replacing
............
.
.
.
.
.
.
.
340-4
ABS
wheel
speed
sensors,
replacing
.
.
.
.
..
340-12
Brake
caliper,
removing
and
installing
.
..
..
.
340-6
TABLES
a
.
Brake
System
Troubleshooting
.....
...
.
.
.....
.340-2
b
.
Brake
Rotor
Reconditioning
Specifications
.
.....
.340-7
Brakeperformance
is
mainly
affected
by
three
things
:
the
leve¡
and
condition
of
the
brake
fluid,
the
system's
abilíty
to
create
and
maintain
hydraulic
pressure,
and
the
condition
of
the
friction
components
.
Air
in
the
Brake
fluid
will
make
the
Brake
pedal
feel
spongy
during
braking
or
will
increase
the
Brake
pedalforce
required
to
stop
.
Fluid
contaminated
by
moisture
or
dirt
can
corrode
the
system
.
Inspect
the
Brake
fluid
inside
the
reservoir
.
Ifit
is
dirty
or
murky,
or
is
over
a
year
old,
the
fluid
should
be
replaced
.
Visually
check
the
hydraulic
system
startingat
the
master
cylinder
.
To
check
the
function
of
the
master
cylinder
hold
the
brake
pedal
down
hard
with
the
engine
running
.
The
pedal
should
feelsolid
and
stay
solid
.
If
the
pedal
slowly
falls
to
the
floor,
either
the
master
cylinder
is
leaking
internally,
or
fluid
is
leaking
externally
.
If
no
leaks
canbe
found,
the
master
cylin-
der
is
faulty
and
should
be
replaced
.
Check
all
Brake
fluid
lines
and
couplings
for
leaks,
kinks,
chafing
and
corrosion
.
Check
the
Brake
booster
by
pumping
the
Brake
pedal
ap-
proximately
10
times
with
the
engine
off
.
Hold
the
pedal
down
and
start
the
engine
.
The
pedal
should
fa¡¡
slightly
.
If
not,
check
for
any
visiblefaults
before
suspecting
a
faulty
brake
booster
.
Check
for
strong
vacuum
at
the
vacuum
hose
fitting
at
the
booster,
and
check
the
non-retum
valve
for
one-way
flow
.
Worn
or
contaminated
brake
pads
will
cause
poor
braking
performance
.
Oil-contaminated
or
glazed
pads
will
cause
stopping
distances
to
increase
.
Inspect
the
rotors
for
glazing,
discoloration
and
scoring
.
Steering
wheel
vibration
while
braking
at
speed
is
often
caused
by
warped
rotors,
but
can
also
be
caused
byworn
suspension
components
.
TROUBLESHOOTING
Page 419 of 759
611
Wipers
and
Washers
GENERAL
..
.
.
.
.
.
.
.
.
.
.
.
.
.
.....
.
......
.
611-1
Windshield
wiper
motor,
removing
and
installing
.
...............
.611-8
WIPER
BLADES
.
.
.
.....
.
.
.
.
.
.
...
....
.611-1
Wiper
Blade
Cleaning
Problems
.
.
.
.
.
.
.....
611-1
Wiper
blades,replacing
...
.
.
.
.
.
.
.
.
.
.....
611-1
Wiper
blade
inserts,
replacing
.
.
.
.
.
.
.
.
.....
611-2
Wiper
arms,
removing
and
installing
.
.
.
.....
611-2
WINDSHIELD
WIPER
ASSEMBLY
.
.
.....
611-3
Windshield
wiper
assembly,
removing
and
installing
(4-door
models)
.
.
.
.
.
.
.....
611-3
Windshield
wiper
assembly,
removing
and
installing
(2-door
models)
.
.
.
.
.
.
.....
611-5
GENERAL
This
repair
group
covers
windshield
wiper
and
washer
sys-
tem
repair
information
.
Please
note
that
some
procedures
are
different
for
2-
and
4-door
models
.
The
windshield
wiper/washer
stalk
switch
assembly
is
cov-
ered
in
612
Switches
and
Electrical
Accessories
.
Electrical
NOTE-
wiring
diagrams
and
relays
for
the
wiper/washer
system
are
BMwhas
available
a
special
toollgauge
(BMWspecial
covered
in
Electrical
Wiring
Diagrams
.
tool
no
.
00
9210)
to
align
the
angle
of
the
wiper
arm
to
the
windshield
glass
.
WIPERBLADES
CA
UTION-
Never
turn
on
the
wiper
blades
while
the
hood
is
open
.
Damage
to
the
wiper
system
and
hood
may
occur
.
Toensure
safetyduring
wiper
biade
system
procedures,
remove
the
windshieldwiper
fuse
.
See
610
Electrical
Component
Locations
.
Wiper
Blade
Cleaning
Problems
Common
cleaning
problems
with
thewipers
includestreak-
ing
or
sheeting,
waterdrops
after
wiping,
and
blade
chatter
.
Streaking
is
usually
caused
when
wiper
blades
are
coated
with
road
film
or
car
wash
wax
.
Clean
the
blades
using
soapy
water
.
If
cleaning
does
not
cure
the
problem,
the
blades
should
be
replaced
.
BMW
recommends
replacing
the
wiper
blades
twice
a
year,
before
and
after
the
cold
season
.
WIPERS
AND
WASHERS
611-1
WINDSHIELD
CLEANING
SYSTEM
......
611-9
Windshield
spray
nozzle,
removing
and
installing
.......
.
........
.611-9
Washer
fluid
reservoir,
replacing
.........
.611-9
Windshield
washer
fluid
pump,
replacing
..
.
......
.
........
.611-9
Washer
fluid
level
sensor,
replacing
(models
with
check
control)
.
.
.
.
........
611-10
Wiper
blade
chatter
may
be
caused
by
dirty
or
worn
blades,
or
by
wiper
arms
that
areout
of
alignment
.
Clean
the
blades
and
windshield
as
described
above
.
Adjust
the
wiper
arm
so
that
there
is
even
pressure
along
the
blade,
and
so
that
the
blade
at
rest
is
perpendicular
to
the
windshield
.
If
problems
persist,
theblades
and
wiper
arms
should
be
replaced
.
The
wiper
blades
can
be
renewed
in
one
of
two
ways
:
either
by
replacing
the
complete
blade
or
by
replacing
just
therubber
insert
.
Insert
replacement
is
the
mosteconomicalmethod,
al-
though
overtime
the
wiperblade
itselfwill
become
worn
.
One
ruleof
thumb
wouldbe
to
replace
just
the
inserts
every
second
time
.
Wiper
blades,
replacing
1
.
Pivot
wiper
arm
off
windshield
.
2
.
Position
wiperblade
approximately
perpendicular
to
wiper
arm
.
3
.
Remove
wiperblade
from
wiper
arm
by
depressing
re-
taining
tab
and
sliding
blade
out
of
arm
.
See
Fig
.
1
.
Drops
that
remain
behind
after
wiping
are
usually
caused
by
NOTE-
oil,
road
film,
or
diesel
exhaust
residue
onthe
glass
.
Use
an
Some
wiperblade
versions
may
havetwo
retaining
alcohol
or
ammonia
solution
or
a
non-abrasive
cleaner
(such
tabs
.
a
s
Bon-Ami
to
clean
the
windshield
.
GENERAL
Page 502 of 759
ELE-18
ELECTRICAL
WIRING
DIAGRAMS
RED
FROM
RED
FROM
D
FRONT
POWER
~H
FRONTPOWER
DISTRIBUTION
BOX
DISTRIBUTION
BOX
(DIAGRAM2OF5)
jl
(DIAGRAM2OF5)
-
--
I
.Sl
-
O
-
NLY
------------------------------------------
DISTRIBUTION
BOX
FUSE
F10
I
30A
I
I
FUSE
L
1995ONLY
FUSE
FUSE
FUSE
I
Ffi
F7
FB
F9
20A
SA
15A20A
'
Tw
q
RED/YEL
Power
Distribution
1996-97
Except
318ti
(5
of
5)
I
i
I
-
I
I
I
I
I
F',F',
I
i
F',F',
I
-
i
I
i
I
i
I
-
v
I
i
l
i
I
I
I
I
I
I
I
II
I
I
I
I
II
11
II
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
11
I
I
I
I
II
I
,
I
L-1
!
_I
!
_I
!
_l
!
_I
!
_I
L-1
!-IL-1
L-1
L-1
L-1L-1
L-1
1
-1
L-1
!-IL-1
L-1
REAR
LEFT
RIGHT
LEFT
RIGHT
TRUNK
CONVERTIBLE
TRUNK
TRUNK
CONVERTIBLE
BODY
CENTRAL
HORN
RADIO
HIFI
ASS
SLIP
ABS
ABS
DEFOGGER
DOOR
DOOR
DOOR
DOOR
LOCK
TOPCONTROL
LID
LID
TOPSTORAGE
ELECTRONICS
LCOKING
RELAY
AMPLIFIER
CONTROL
CONTROL
RELAY
PUMP
RELAY
LOCKLOCKLOCKLOCK
MOTORMODULE
MICRO-
RELAY
LIDLOCK
CONTROL
SWITCH
MODULE
MODULE
MOTOR
SWITCH
SWITCH
MOTORMOTOR
SWITCH
MOTOR
MODULE
RELAY
(1996)
_________________________________________-]PRONTPOWER
I
FROM
I
DISTRIBUTION
BOX0
FUSEF34
I
FUSE
FUSE
FUSE(DIAGRAM
II
t
J
F31
F32
133
5OF5)
II
SA
30A
t
0A
I
L
------------
__
.__
-----------
____
...
.
----------
F
-,
I
.I
F
-,
F
-,
III
I
II
I
II
I
I
I
I
I
I
I
I
I
I
I
I
___I
L-1
I-_I
L-1
L-1
L-1
L-1
WATER
AUTOMATIC
ELECTRONIC
CHIME
ON-BOARD
MULTI-
INSTRUMENTVALVE
CLIMATE
IM
MOB
ILIZER
MODULE
COMPUTER
FUNCTION
CLUSTER
AS
SSEMBLYCONTROL
CONTROL
(1997)
CLOCK
MODULEMODULE
G
FRONT
CIGAR
LIGHTER
FROM
RED
FRONTPOWER
G
DISTRIBUTIONBOX
(DIAGRAM
2
OF
5)
r
I
TO
O
I
FRONTPOWER
FUSE
F33
DISTRIBUTION
I
(DIAGRAM
FUSE
FUSE
FUSE
FUSE
FUSE
I
I
5
OF5)
F34
F35
F36
F3T
F3W
I
25----------
______
_____
328,
M3
I
315
ALL
BODY
TRUNK
TELEPHONE
CD
FRONT
CANADA
USA
WIASC
W/ASC
W/ABS
ELECTRONICS
LIGHT
TRANSCEIVER
CHANGER
DOME/MAP
I
CONTROL
(1996)
LIGHT
MODULE
ASSEMBLY
(ZKEIV)
I
-
i
I
-
i
I
I
1"!
1"!
I
I
I
-
j
1'l--I
1
-
-
i
I
II
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
II
_I
L-1
L-1
!
_I
1
__
j
1
__
J
1
__
j
1
__
j
1
-
1
CRASH
HAZARD
CONVERTIBLE
BOO
Y
WIPER
WIPER/
LIGHT
ABS
SLIP
ABS
CONTROL
FLASHER
TO
PCoNTROL
ELECTRONICS
RELAY
WASHER
SWITCH
PUMP
CONTROL
CONTROL
MODULE
RELAY
MODULECONTROL
MODULE
(USA)
MOTORMODULE
MODULE
(1996)
MODULE
RELAY
WW983
(ZKEIV)
W/HIFI
,
ALL
-
I
32
B,
M3
318
TEN
WIASS
I
WIASC
IN
ABC
SPEAKER
SYSTEM
'7
-
I
I
I
I
I
I
OBD11
II
II
I
II
CENTER
CONNECTOR
CONSOLE
TEL
PHONE
L-1
I
_I
L-1
CONNECTOR
LIGHT
CHARGING
IGNITION
SWITCH
SOCKET
SWITCH
Il
1
20
of
01
~
1
.1
.1
'
I
41
11
III
...
I
II
II
I
I
III
LUGGAGE
I
I
I
I
I
I
I
I
I
I
COMPARTMEN
I
-_I
ELEPHONE
CONNECTOR
Page 507 of 759
REDIYEL
FROM
RED
FRONT
PO
WE
R
D~
DISTRIBUTION
BOX
(DIAGRAM
2
OF
5)
_
_
_
_
_
_
_
_
_
_
__
,FRONTPOWER
I
IDISTRIBUTIONBOX
I
II
FUSE
FUSEFUSE
FUSE
F7
FS
FO
F10
I
I
5A
15A20A
30A
I
L
ti,
--_---
----_--
-__-_---
------
,61
18
20
XSD0L5
11X10018
Power
Distribution
1998Except
318ti
(5of5)
T_
T_
B,~
_
_
_i
I
_
_
_
I
I
I
I
I
I
I
,
I
i
I
i
1
-
7
I
i
F-
,
I
I
I
I
I
I
I
I
I
I
,
I
I
I
I
I
I
I
,
II
_I
L
-I
L
-I
L
-I
L
-I
L
-I
L-1
L
-I
L
-I
L
-I
L
-I
L-11-1
L
-I
!
_I
!
_I
L
-I
I
--
,
I
--
,
1
--
I
--
i
1
--
I
I
I
I
I
I
I
I
,
II
I
I
I
LEFT
RIGHT
LEFT
RIGHT
TRUNK
CONVERTIBLE
TRUNK
TRUNK
CONVERTIBLE
CENTRAL
HORN
RADIO
HIFI
ASS
SLIP
PBS
ASS
FRONT
FRONT
FRONT
FRONT
LOCK
TOPCONTROL
LID
LID
TOP
LCOKING
RELAY
AMPLIFIER
CONTROL
CONTROL
RELAY
PUMPDOORDOOR
DOOR
DOOR
MOTORMODULE
MICRO-
RELAY
STORAGE
SWITCH
MODULEMODULEMOTOR
LOCKLOCKLOCKLOCK
SWITCH
LIDLO
HYDRAULIC
RELAY
SWITCH
SWITCH
MOTORMOTOR
MOTOR
UNIT
_____________-I
FRONTPOWER
-
FROM
I
DISTRIBUTION
BOX
I
FUSE
FUSE
FUS~
FUSEF34
(DIAGRAM
I
I
531
F32
F33
50F5/,
I
I
5A
30A
,OA
I
____--__________________J-________J
21
4
1I
,
I
I
I
I
I
I
I
I
I
I
I
I
I
I
SI
+I
,
s
n
_,,,,,,
I
II
I
,
I
I
I
I
I
,
I
I
I
II
I
'III
I
--
I
-
I
OBDII
I
I
CENTER
L
-I
I
I
I
I
I
I
IIII
CONNECTOR
I
I
CONSOLE
1I
TELEPHONE
WATER
AUTOMATIC
ELECTRONIC
CHIME
ON-BOARD
MULTI-
INSTRUMENT
CONNECTOR
VALVE
CLIMATE
IM
MOBILIZER
MODULE
COMPUTER
FUNCTION
CLUSTER
rtl
m
LIGHT
CHARGING
IGNITION
ASSSEMBLY
CONTROL
CONTROL
MODULE
CLOCK
l
MODULE
MODULE
0203
i
SWITCH
SOCKET
SWITCH
TO
FRONTPOWER
I
FUSEF33
L
I
DISTRIBUTION
BOX
__]
(DIAGRAM
FUSE
FUSE
FUSE
FUSE
FUSE
II
loll,
F34
F35
F38
F37
F38
I
30A
loA
ELECTRICAL
WIRING
DIAGRAMS
ELE-23
FPOM
1~
RED
FRONTPOWERIEJ
.
_--~
DISTRIBUTION
BOX
(DIAGRAM
20F5)
1
X1D0+6
CRASHHAZARD
BODY
WIPER/
LIGHT
ABS
SLIP
ASS
CONTROL
FLASHER
ELECTRONICS
WASHER
SWITCH
PUMPCONTROL
CONTROL
MODULE
RELAY
CONTROLMODULE
MOTOR
MODULE
MODULE/
MODULE
RELAY
HYDRAULIC
104374
(ZKEIV)
UNIT
12
I
IIIII
I
LUGGAGE
I
I
I
I
I
I
I
(
COMPARTMENT
!
_I
_I
I
_I
I
_I
TELEPHONE
CONNECTOR
BODY
TRUNK
CD
FRONTELECTRONICS
LIGHT
CHANGER
DOME/MAP
CONTROL
LIGHT
MODULE
ASSEMBLY
(ZKE
IV)
Page 515 of 759
FROM
RED
RED
FROM
D
FRONTPOW
.R
D
f~~
E
FRONTPOWER
ISTRIBUTION
BOX
1/
~
1
DISTRIBUTION
BOX
(DIAGRAM
IOF3)
11
(DI
AGRAM10F3)
TO
_
_
_
_
_
_
_
_
_
_
-
-
____
_
_
_
_
_
_
_
_
_
_
_
_
_
____
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
____
_
_
_
_
-
~
FRONTPOWER
FUSEF33
H
DISTRIBUTION
BOX
(DIAGRAM
FUSEFUSEFUSEFUSEFUSE
FU
7
S
3CF3)
F
F1
FUSE
FUSE
FUSE
II
F30
36
F36F37
F38
F9
FB
F7
L
I
15A
25A
30A
_
1
-------
OA
3020A
15A
sA
I
____
__
___________
_____
81
101
121
,a1
761
201
18
WITH
¢I
WITH
ABC
ABS
61
61
101
291
B
F
-,
I
-
~
l
i
Flhh
.
i
I
--,
F
-,
I
---
i
F
-,
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
_I
!
_I
L-1
L-1
L-1
L
----l
L-1
ELECTRICAL
WIRING
DIAGRAMS
ELE-31
Power
Distribution
1997
318ti
(3
of
3)
WITH
¢I
WITH
ADS
ABC
25
B9
1s
2
-~
s~
s~
31
a~
I
-
i
I
I
I
I
I
I
I
I
I
I
I
I
I
II
II
I
I
I
I
II
_I
1
--
j
1
-_
j
1
-_
j
1
-_
j
1
-_
j
1
-
11
-_
j1
-_
j
1
-_
j
1
-_
j
.HAS
.
HAZARD
BODY
WIPERI
LIGHT
SLIP
ADS
ABS
ADS
RADIO
HIFI
HORN
LEFT
RIGHT
LEFT
RIGHT
TRUNK
CENTRAL
CONTROL
FLASHER
ELECTRONICS
WASHER
SWITCH
CONTROL
CONTROL
CONTROL
PUMP
AMPLIFIER
RELAY
..OR
DOOR
DOOR
DOOR
LOCK
LCOKING
MODULE
RELAY
CONTROL
MODULE
MODULE
MODULE
MODULEMOTOR
LOCK
LOCK
LOCKLOCK
MOTOR
SWITCH
MODULE
RELAY
SWITCHSWITCH
MOTORMOTOR
(ZKEIV)
r_________-__--__________________________________--____-_________-IFRONTPOWER
FROM
DISTWBUTIONBOX
I
FUSE
FRO
F24J
H
FUSE
F34
II
FUSE
FUSE
FUSE
(DIAGRAM
II
(DIAGRAM
FUSE
F31
1`32
F33
30F3)
II
30
F3)
F23
SA
30A
10A
L______-_________________}}}
.
L'''D"__________________
.
________j
GRIBLU
I
>
BLK/WHT
/
CIGAR
-
-
-
F
-
-
-
*----o
WITH
ITH
INKSHS
,
1
1
.!l
1
71
B~
9
T
I
-
v
Ii
I-
..
.iii
I
I
-
v
I
II
I
I
I
I
I
I
I
I
I
1
_I
L-1
L-1
L-1
L-1
WATER
FRESH
INKS
REAR
COMBINATION
VALVE
AIR
CONTROL
DEFOGGER
SWITCH
RECIRULATION
SWITCH
SWITCH
MOTOR
ELECTRONIC
CHIME
ON
BOARD
DIGITAL
INSTRUMENT
BODY
RIGHT
CD
FRONT
IM
MOB
ILIZER
MODULE
COMPUTER
CLOCK
CLUSTER
ELECTRONICS
TRUNK
CHANGER
DOMEIMAP
CONTROL
CONTROL
LIGHT
LIGHT
FROMIGNITION
GRN
MODULE
MODULE
ASSEMBLY
SWITCH
F
(ZKEIV)
(DIAGRAM
20F3)
1
1
GRIBLUl
mlml
m
m
m
IIII
F-,
F-,F-,
I
I
I
I
I
~
I
I
I
I
INSTRUMENT
REAR
FOG
UNLOADER
LIGHT
CLUSTER
DEFOGGER
LIGHT
RELAY
SWITCH
RELAY
SWITCH
ILLUMINATION
ILLUMINATION
--
_
___
_
__-
_
_
_
_
_
_
_
______
_
_
_
_
_
_
_
_
_
____
_
_
_
_
_
_
_
_
_
_
_
_
_
____
,FRONTPOWER
I
DISTRIBUTION
BOX
JETHEATER
RIGHT
MIRROR
LIGHT
HIGH
BEAM
REVERSING
AUTOMATIC
PROGRAM
INSTRUMENT
THERMO-
SIDE
CONTROL
SWITCH
LIGHT
LIGHT
SWITCH
TRANSMISSION
SWITCH
CLUSTER
SWITCH
MIRROR
SWITCH
RELAY
RANGESWITCH
891
38
LIGHTER
BR
NT
"
BRNI
1
G203
I
II
I
I
II
II
I
I
II
,
I
II
I
LUGGAGE
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
(
COMPARTMENT
_
TELEPHONE
I
L-1
!
_I
!
_(
CONNECTOR
OBDII
II
CENTER
CONNECTOR
II
CONSOLE
I
-
I
TELEPHONE
CONNECTOR
LIGHT
SWITCH
LIGHT
ADS
SLIP
ASC
SWITCH
CONTROL
CONTROL
SWITCH
MODULE
MODULE