B
-
1
ROBERT
BENTLEY,
INC
.
I
AUTOMOTIVE
PUBLISHERS
Information
that
makes
1734
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o
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Technical
Contact
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We
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time,
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made
tothis
manual
.
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updates
canbe
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web
Iat
www
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.com/update
s
Do
not
use
this
manual
unless
you
are
familiar
with
basic
automotive
repair
procedures
and
safe
workshop
practices
.
This
manual
illustrates
the
workshop
procedures
required
for
most
service
work
.
It
is
not
a
substitute
for
fui¡
and
up-to-dateinformation
from
the
vehicie
manufacturer
or
for
proper
training
asan
automotive
technician
.
Note
that
it
is
not
possible
for
us
to
anticipate
al¡
of
the
ways
or
conditions
under
which
vehicles
may
be
serviced
or
to
provide
cautions
as
to
all
of
the
possible
hazards
that
may
result
.
The
vehicie
manufacturer
will
continue
to
issue
service
information
updates
and
parts
retrofits
after
the
editorial
closing
of
this
manual
.
Some
of
those
updates
and
retrofits
will
apply
to
procedures
and
specifications
in
this
manual
.
We
regret
that
we
cannot
supply
updates
to
purchasers
of
this
manual
.
We
haveendeavored
to
ensure
the
accuracy
of
the
information
in
this
manual
.
Please
note,
however,
that
considering
thevast
quantity
and
the
complexity
of
the
service
information
involved,
we
cannot
warrant
the
accuracy
or
completeness
of
the
information
contained
in
this
manual
.
FORTHESE
REASONS,NEITHERTHEPUBLISHER
NORTHE
AUTHOR
MAKES
ANY
WARRANTIES,
EXPRESS
OR
IMPLIED,THATTHE
INFORMATION
IN
THIS
BOOK
IS
FREE
OF
ERRORS
OR
OMISSIONS,
AND
WE
EXPRESSLY
DISCLAIMTHE
IMPLIED
WARRANTIESOF
MERCHANTABILITY
AND
OF
FITNESS
FOR
A
PARTICULAR
PURPOSE,
EVEN
IF
THE
PUBLISHER
OR
AUTHOR
NAVEBEEN
ADVISED
OF
A
PARTICULAR
PURPOSE,
AND
EVEN
IF
A
PARTICULAR
PURPOSE
IS
INDICATED
IN
THE
MANUAL
.
THE
PUBLISHER
AND
AUTHOR
ALSO
DISCLAIM
ALL
LIABILITY
FOR
DIRECT,
INDIRECT,
INCIDENTAL
OR
CONSEQUENTIAL
DAMAGES
THAT
RESULT
FROM
ANYUSE
OF
THE
EXAMPLES,
INSTRUCTIONS
OR
OTHER
INFORMATION
IN
THIS
BOOK
.I
N
NO
EVENTSHALL
OUR
LIABILITY
WHETHER
INTORT,
CONTRACT
OR
OTHERWISE
EXCEEDTHECOST
OFTHIS
MANUAL
.
Your
common
sense
and
good
judgment
are
crucial
to
safe
and
successful
service
work
.
Read
procedures
through
before
starting
them
.
Thinkabout
whether
the
condition
of
your
car,
your
leve¡
of
mechanical
skill,
or
your
leve¡
of
reading
comprehension
might
result
in
or
contribute
in
some
way
to
an
occurrence
which
might
cause
you
injury,
damage
your
car,or
result
in
an
unsafe
repair
.
lf
you
have
doubts
for
these
or
other
reasons
about
your
ability
to
perform
safe
repair
workon
your
car,
have
the
work
done
at
an
authorized
BMW
dealeror
other
qualified
shop
.
Part
numbers
listed
inthis
manual
are
for
identification
purposes
only,
not
for
ordering
.
Always
check
with
your
authorized
BMW
dealer
toverifypart
numbers
and
availability
beforebeginning
service
work
that
may
requíre
new
parts
.
Before
attempting
any
work
on
your
BMW,
read
the
wamings
and
cautions
on
pages
vi¡
and
vi¡¡,
andany
waming
or
caution
that
accompanies
a
procedure
in
the
service
manual
.
Review
the
warnings
and
cautions
on
pages
vi¡
and
viü
each
time
you
prepare
to
workon
your
BMW
.
Special
tools
required
to
perform
certain
service
operations
are
identified
in
the
manual
and
are
recommended
for
use
.
Use
of
tools
other
than
those
recommended
inthis
service
manual
may
be
detrimental
to
the
car's
safe
operation
as
well
as
the
safety
of
the
person
servicing
thecar
.
Copies
of
this
manual
may
be
purchased
from
most
automotiveaccessories
and
parts
dealers
specializing
in
BMW
automobiles,
from
selected
booksellers,
or
directly
from
the
publisher
by
mail
.
The
publisher
encourages
comments
from
the
reader
of
this
manual
.
These
communications
havebeen
and
will
be
carefully
considered
in
the
preparation
of
this
and
other
manuals
.
Please
write
to
Robert
Bentley,
Inc
.,
Publishers
at
the
address
listed
on
the
top
of
this
page
.
This
manual
was
published
byRobert
Bentley,
Inc
.,
Publishers
.
BMW
has
not
reviewed
and
does
not
vouch
forthe
accuracy
of
thetechnical
specifications
and
procedures
described
in
this
manual
.
Libraryof
Congress
Cataloging-in-Publication
Data
BMW
3
SeriesService
ManualM3,
318i,
323i,3251,
328i,
Sedan,
Coupe
and
Convertible
:
1992,
1993,
1994,
1995,
1996,1997,
1998
.
p
.
c
m
.
Includes
index
.
ISBN
0-8376-0326-9
1
.
BMW
3
Series
automobile--Maintenance
and
repair--Handbooks,
manuals,
etc
.
I
.
Robert
Bentley,
inc
.
TL215
.13251356
1999
629
.28'
722--cic21
99-17179
CIP
Bentley
Stock
No
.
B398
Editorial
closing
01/99
0302010099
1098765432
The
paper
used
in
this
publication
is
acidfree
and
meets
the
requirements
of
the
National
Standard
for
Information
Sciences-
Permanence
of
Paper
for
PrintedLibrary
Materials
.
O
©Copyright
1999
Robert
Bentley,
Inc
.
All
rights
reserved
.
All
information
contained
in
this
manual
is
based
onthe
information
available
to
the
publisher
at
the
time
of
editorial
closing
.
The
right
is
reserved
to
make
changes
at
any
time
without
notice
.
No
partof
this
publication
may
be
reproduced,
stored
in
a
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system,
or
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in
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form
orby
any
means,
electronic,
mechanical,
photocopying,
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otherwise,
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the
prior
written
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of
thepublisher
.
This
includes
text,
figures,
and
tables
.
All
rights
reserved
underBerne
andPan-American
Copyright
conventions
.
Manufactured
in
the
UnitedStates
of
America
Please
read
these
warnings
and
cautions
before
proceeding
with
maintenance
and
repair
work
.
WARNING-
"
Friction
materials
(such
as
brake
pads
or
shorts
or
clutchdiscs)
contain
asbestos
fibers
or
other
friction
materials
.
Do
notcreate
"
See
also
Cautionson
page
viü
dustby
grinding,
sanding,
orby
cleaning
with
compressed
air
.
"
Some
repairs
may
be
beyond
your
capability
.
If
you
lack
the
Avoid
breathing
dust
.
Breathing
any
friction
material
dust
can
lead
skills,
tools
and
equipment,
or
a
suitable
workplace
for
any
proce-
to
serious
diseases
and
may
result
in
death
.
duredescribed
in
this
manual,
we
suggestyou
leave
such
repairs
"
Batteries
give
off
explosive
hydrogen
gas
during
charging
.
to
an
authorized
BMW
dealer
service
department
or
other
quali-
Keep
sparks,
lighted
matches
and
open
flame
away
from
the
top
fied
shop
.
of
the
battery
If
hydrogen
gas
escaping
from
the
cap
vents
is
"Do
not
re-use
any
fasteners
that
are
worn
or
deformed
in
normal
ignited,
it
will
ignite
gas
trapped
in
the
cells
and
cause
the
battery
use
.
Many
fasteners
are
designed
to
be
used
only
once
and
to
explode
.
become
unreliable
and
may
fail
when
used
a
second
time
.
This
"
Connect
and
disconnect
battery
cables,
jumper
cablesora
bat-
includes,
but
is
not
limited
to,
nuts,
bolts,
washers,
self-locking
nuts
or
bolts,
circlips
and
cotterpins
.
Always
replace
these
fasteners
with
new
parts
.
"Do
not
quick-charge
the
battery
(for
boost
starting)
for
longer
"
Never
work
under
a
lifted
car
unless
it
is
solidly
supportedon
than
one
minute
.
Wait
at
least
one
minute
before
boosting
the
bat-
stands
designed
for
the
purpose
.
Do
not
support
a
car
on
cinder
tery
a
second
time
.
blocks,
hollow
tiles
or
other
props
that
may
crumble
under
contin-
uous
load
.
Never
work
under
acar
that
is
supported
solely
by
a
"Do
not
allow
battery
charging
voltage
to
exceed
16
.5
volts
.
If
the
jack
.
Never
work
under
thecar
while
the
engine
is
running
.
battery
beginsproducing
gas
or
boiling
violently,
reduce
the
charg-
ing
rate
.
Boosting
a
sulfated
battery
at
a
high
charging
rate
can
"
If
you
are
going
to
work
under
acar
on
the
ground,
make
sure
cause
an
explosion
.
that
the
ground
is
level
.
Block
the
wheels
to
keep
the
carfrom
roll-
ing
.
Disconnect
the
battery
negative
(-)
terminal
(ground
strap)to
"
The
air-conditioning
system
is
filled
with
chemical
refrigerant,
prevent
others
from
starting
thecar
while
youare
under
it
.
which
is
hazardous
.
TheA/C
system
should
be
servicedonly
by
trained
technicians
using
approved
refrigerant
recovery/recycling
"
Never
run
the
engine
unless
the
work
area
is
well
ventilated
.
equipment,
trained
in
related
safetyprecautions,
and
familiar
with
Carbon
monoxide
kills
.
regulations
governing
the
discharging
and
disposal
of
automotive
"
Finger
rings,
bracelets
and
other
jewelry
shouldbe
removed
so
chemical
refrigerants
.
tery
charger
only
with
the
ignition
switched
off,
to
prevent
sparks
.
Do
not
disconnect
the
battery
while
the
engine
is
running
.
that
theycannot
cause
electrical
shorts,
get
caught
in
running
"
Do
not
expose
any
partof
the
A/Csystem
to
high
temperatures
machinery,
or
be
crushed
by
heavy
parts
.
suchas
open
flame
.
Excessiveheat
will
increase
system
pressure
"
Tie
long
hair
behind
your
head
.
Do
not
wear
a
necktie,
a
scarf,
and
may
cause
the
system
to
burst
.
loose
clothing,
or
a
necklace
when
you
work
near
machine
tools
or
"
Some
aerosol
tire
inflators
are
highly
flammable
.
Be
extremely
running
engines
.
If
your
hair,
clothing,
or
jewelry
were
to
get
caught
cautious
when
repairing
a
tire
that
may
havebeen
inflated
using
in
the
machinery,
severe
injury
could
result
.
an
aerosol
tire
inflator
.
Keep
sparks,
open
flame
or
other
sources
"
Do
not
attempt
to
work
onyourcar
if
you
do
not
feel
well
.
You
of
ignition
away
from
the
tire
repair
area
.
Inflate
and
deflate
the
tire
increase
the
danger
of
injury
toyourself
and
others
if
you
are
tired,
at
least
four
times
before
breaking
the
bead
from
therim
.
Com-
upset
or
have
takenmedication
or
any
other
substance
that
may
Pletely
remove
the
tire
from
the
rim
beforeattempting
any
repair
.
keep
you
from
being
fully
alert
.
"
Illuminate
your
work
areaadequately
but
safety
.
Use
a
portable
safety
light
for
working
inside
or
under
thecar
.
Make
surethe
bulb
is
enclosedbya
wire
cage
.
The
hot
filament
of
an
accidentally
bro-
ken
bulb
can
ignite
spilled
fuel
or
oil
.
"
Catch
draining
fuel,
oil,
orbrake
fluid
in
suitable
containers
.
Do
not
use
food
or
beverage
containers
that
mightmislead
someone
into
drínking
from
them
.
Store
flammable
fluids
away
from
fire
haz-
ards
.
Wipe
up
spills
at
once,
but
do
not
store
the
oily
rags,
which
can
ignite
and
burn
spontaneously
.
"
Always
observe
good
workshop
practices
.
Wear
goggles
when
youoperate
machine
tools
or
work
with
battery
acid
.
Gloves
or
other
protectioeclothing
should
be
worn
whenever
thejob
requires
working
with
harmful
substances
.
"
Greases,
lubricants
and
other
automotive
chemicals
contain
toxic
substances,
many
of
which
are
absorbed
directly
through
the
skin
.
Read
the
manufacturer's
instructions
and
warnings
carefully
.
Use
hand
andeye
protection
.
Avoid
direct
skin
contact
"
Cars
covered
by
this
manual
are
equipped
with
a
supplemental
restraint
system
(SRS),
that
automatically
deploys
an
airbag(s)
in
theevent
of
a
frontal
ímpact
.
The
airbag(s)
is
inflated
byan
explo-
sive
device
.
Handled
improperly
or
without
adequate
safeguards,
can
be
accidently
activated
and
cause
serious
injury
.
"
The
ignition
system
produces
high
voltages
that
can
be
fatal
.
Avoid
contact
with
exposed
terminals
and
use
extreme
care
when
working
ona
car
with
the
engine
running
or
the
ígnition
switched
on
.
"
Place
jack
stands
only
at
locations
specified
bymanufacturer
.
The
vehicle
lifting
jacksupplied
with
the
vehicle
is
intended
for
tire
changes
only
.
A
heavy
duty
floor
jack
shouldbe
used
to
lift
vehicle
before
installing
jack
stands
.
See
010
Fundamentals
for
theDo-
.
it-Yourself
Owner
.
"
Battery
acid
(electrolyte)
can
cause
severeburns
.
Flush
contact
area
with
water,
seek
medical
attention
.
"
Aerosolcleaners
and
solvents
may
contain
hazardous
ordeadly
vapors
and
are
highly
flammable
.
Use
only
in
a
wellventilated
area
.
Do
not
use
on
hot
surfaces
(engines,
brakes,
etc
.)
.
"
Disconnect
the
battery
negative
(-)
terminal
(Ground
strap)
"
Do
not
remove
coolant
reservoir
or
radiator
cap
with
theengine
whenever
you
work
on
the
fuel
system
orthe
electrical
system
.
Do
hot
.
Danger
of
bums
and
engine
damage
.
not
smoke
or
work
near
heaters
or
other
fire
hazards
.
Keep
an
approved
fire
extinguisher
handy
.
continued
on
next
page
vii
010-
4
FUNDAMENTALS
FOR
THE
DO-ITYOURSELF
OWNER
Fig
.
3
.
BMW
supplied
jack
correctly
positioned
in
front
jacking
point
.
Most
of
the
repairs
and
maintenance
tasks
described
in
this
manual
can
be
successfully
completedby
anyone
with
basic
tools
and
abilities
.
To
prevent
getting
in
too
deep,
know
what
WARNING-
the
wholejob
requires
before
starting
.
Read
the
procedure
thor-
"
Do
not
rely
on
thetransmission
or
the
emergen-
oughly,
from
beginning
to
end,
in
order
to
know
just
what
to
ex
cybrake
to
keep
thecar
from
rolling
.
They
are
pect
and
what
parts
will
have
to
be
replaced
.
nota
substitute
for
positively
blocking
the
oppo-
site
wheel
.
"
Never
work
undera
car
that
is
supported
only
by
ajack
Use
jack
stands
that
are
properly
de-
signed
to
support
the
car
.
See
Tools
.
Working
under
car
safely
1
.
Disconnect
negative
(-)
cable
from
battery
so
that
no
one
else
can
start
thecar
.
Let
others
know
what
you
will
be
doing
.
CAUTION-
Prior
to
disconnecting
the
battery
read
the
battery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
vüi
.
2
.
Raisecar
slowly
as
described
above
.
3
.
Use
at
least
two
jack
stands
to
support
thecar
.
A
jack
is
atemporary
lifting
device
and
should
not
be
used
alone
to
support
the
car
while
you
are
under
it
.
Use
jack
stands
designed
for
the
purpose
of
supporting
a
car
.
For
more
information
on
jack
stands,
see
Toolsbelow
.
WARNING
-
Do
notusewood,
concrete
blocks,
orbricks
to
sup-
port
acar
.
Woodmay
split
.
Blocks
or
bricks,
while
strong,
are
not
designed
for
that
kind
of
load,
and
may
brakkor
collapse
.
ADVICE
FOR
THE
BEGINNER
4
.
Place
jack
stands
on
firm,
solid
surface
.
If
necessary,
use
a
flat
board
or
similar
solid
object
to
provide
a
firm
footing
.
5
.
Lower
car
slowly
until
its
weight
is
fully
supportedby
jack
stands
.
Watch
to
make
sure
that
the
jack
stands
do
not
tip
orlean
as
thecar
settles
on
them
.
6
.
Observe
all
jacking
precautions
again
when
raising
car
to
remove
jack
stands
.
ADVICE
FORTHE
BEGINNER
The
tips
in
the
paragraphs
that
follow
are
general
advice
to
help
any
do-it-yourself
BMW
owner
perform
repairs
and
main-
tenance
tasks
more
easily
and
more
professionally
.
Planning
Ahead
Cleanliness
Keeping
things
organized,
neat,
and
clean
is
essential
to
do-
ing
a
good
job
.
When
working
under
the
hood,
fender
covers
will
protect
the
finish
from
scratches
and
other
damage
.
Make
sure
the
car
is
relatively
clean
so
thatdi
rt
under
the
cover
does
not
scratch
the
finish
.
Any
repair
job
will
be
less
troublesome
if
the
parts
are
clean
.
For
cleaning
old
parts,
there
are
many
solvents
and
parts
cleaners
commercially
available
.
For
cleaning
parts
priorto
assembly,
commercially
available
aerosol
cans
of
parts
cleaner
or
brake
cleaner
are
handy
to
use,
and
the
cleaner
will
evaporate
completely
.
WARNING
-
Virtually
all
solvents
used
for
cleaning
parts
are
highly
flammable,
especially
in
aerosol
form
.
Use
wíth
extreme
care
.
Do
not
smoke
.
Do
not
use
these
products
near
any
source
of
heat,
sparksor
flame
.
Let
any
solvent
orcleaning
product
dry
completely
.
Low-
pressure,
dry
compressed
air
is
helpful
if
available
.
Also,
use
only
lint-free
rags
for
cleaning
and
drying
.
Non-returnable
Parts
FUNDAMENTALS
FOR
THEDO-ITYOURSELF
OWNER
010-
7
Many
independent
repair
shops
make
a
point
of
using
genu-
Original
body
paneis
and
other
large
components
are
identi-
ine
BMW
parts,
even
though
they
may
at
times
be
more
expen-
fied
by
a
label
bearing
the
VINand
two
BMW
roundellogos
.
Re-
sive
.
Theyknow
the
value
of
doing
thejob
right
with
the
right
placement
parts
have
a
similar
label,
bearing
one
BMW
roundel
parts
.
Parts
from
other
sources
can
beas
good,
particularly
if
logo
and
the
letters
DOT-R
.
See
Fig
.
6
.
Parts
or
assemblies
manufactured
by
one
of
BMWs
original
equipment
suppliers,
bearing
the
label
arethe
engine,
transmission,
front
and
rear
but
it
is
often
difficult
to
know
.
bumpers,
front
fenders,
rear
quarter
paneis,
hood,
trunk
lid
and
doors
.
These
labels
shouldnot
be
removed
as
they
will
tear
BMW
is
constantly
updating
and
improving
their
cars,
often
apart
.
making
improvements
during
a
given
model
year
.
BMW
may
recommend
a
newer,
improved
part
as
a
replacement,
and
your
authorized
dealer's
parts
department
will
know
about
it
and
provide
it
.
The
BMW
parts
organization
is
best
equipped
to
deal
with
any
BMW
parts
needs
.
Some
parts
cannot
be
returned
for
credit,
even
if
they
arethe
wrong
parts
forthe
car
.
The
best
example
is
electrical
parts,
which
are
almost
universally
considered
non-returnable
be-
,
..
cause
they
are
so
easily
damaged
internally
.
Buy
electrícal
parts
carefully,
and
beas
sure
as
possible
that
P-
DOT~
R
a
replacement
is
needed,
especially
for
expensive
parts
such
as
electronic
control
units
.
It
may
bewise
to
let
an
authorized
B328FUN
BMW
dealeror
other
qualified
shop
confirm
your
diagnosisbe-
fore
replacing
an
expensive
part
that
cannot
be
retuned
.
Fig
.
6
.
Labels
used
to
identiy
parts
.
Original
equipment
labelwith
VIN
number
and
roundel
logos
(top)
and
replacement
part
la-
bel
with
one
roundel
logos
Information
You
Need
to
Know
Engine
.
3-Seriescars
covered
in
this
manualare
powered
Model
.
When
ordering
parts
it
is
important
that
you
know
the
by
either
a
4-or
6-cylinder
engine
.
For
information
-
on
engine
correct
model
designation
for
your
car
.
Models
covered
in
this
codes
and
engine
applications,
see100
Engine-General
.
manual
are
E36
3
Series
in
both
4-
and
6-cylinderconfigura-
tions
.
Transmission
.
The
transmissiontype
with
its
identifying
code
may
be
important
when
buying
clutch
parts,
seals,
gas
Moda¡
Year
.
This
is
not
necessarily
the
same
as
date
of
kets,
and
othertransmission-relatedparts
.
For
information
on
manufacture
or
date
of
sale
.
A
1997
model
may
havebeen
transmission
codes
and
applications,
see200
Transmission
manufactured
in
late
1996,
and
perhaps
not
sold
until
early
General
.
1997
.
It
is
still
a1997
model
.
Model
years
covered
by
this
man-
ual
are
1992
to
1998
.
SERVICE
Date
of
Manufacture
.
This
information
is
helpful
when
or-
dering
replacement
parts
or
determining
if
any
of
the
warranty
BMW
dealers
are
uniquely
qualified
to
provide
service
for
recalls
are
applicable
to
your
car
.
The
label
on
the
driver's
door
BMW
cars
.
Their
authorized
relationship
with
the
large
BMW
below
the
door
latch
will
specify
the
month
and
year
that
the
car
serviceorganization
means
that
they
are
constantly
receiving
was
built
.
new
tools
and
equipment,
together
with
the
latest
and
most
ac-
curate
repair
information
.
Vehicle
Identification
Number
(VIN)
.
This
is
a
combination
of
letters
and
numbers
that
identify
the
particular
car
.
TheVIN
appears
on
the
state
registration
document,
and
on
thecar
it-
self
.
One
location
isin
the
rear
of
the
engine
compartment,
en-
other
in
the
lower
left
comer
of
the
windshield
.
The
National
Highway
Traffic
Safety
Administration
(NHT-
SA)
requires
passenger
cars
with
a
high
theftrateto
have
the
VINmarked
on
specific
parts
of
thecar
when
manufactured
.
On
BMW
cars,
these
parts
are
identified
byan
adhesive
label
.
)WBADK00000000
0
000
0
The
BMW
dealers
service
technicians
are
highlytrained
and
very
capable
.
Unfke
most
independent
repair
shops,
autho-
rized
BMW
dealers
are
intensely
committed
tosupporting
the
BMW
product
.
They
share
the
owners
interest
in
BMW
value,
performance,
and
reliability
.
On
the
other
hand,
there
are
many
independent
shops
that
specialize
in
BMW
service
and
are
ca-
pable
of
doing
high
quality
repair
work
.
Checking
with
other
BMW
owners
for
recommendations
on
service
facilitiesis
a
good
way
to
leam
of
reputable
BMW
shops
in
yourarea
.
SERVICE
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
.
NOTE-
Aftermarket
reset
tools
can
be
purchased
from
one
of
the
fol-
lift
owng
manuacurers
:
For
referente,
the
BMW
Inspection
1
and
Inspection
11
requirements
are
approximately
equivalent
to
the
main-
tenance
requirements
that
other
European
manufac-
Assenmacher
Bo
s
turers
specify
.
Inspection
I
is
normally
due
at
intervals
lder,
CO
80301
Specialty
Tools
with
a
maximum
of
15,000
miles
or
12
months
.
lnspec-
(303)
530-2424
tion
11
is
normally
due
at
intervals
with
a
maximum
of
30,000
miles
or
24
months
.
Peake
Research,Automotive
Products
Division
P
.O
.
Box
28776
San
Jose,
CA
95159
Resetting
Service
Indicator
(408)
369-0406
When
the
specified
maintenance
has
been
carried
out,
the
service
indicator
memory
should
be
reset
.
MAINTENANCE
TABLES
The
senrice
indicator
is
reset
using
a
special
tool
.
The
tool
is
plugged
into
the
diagnostic
connector
in
the
engine
compart-
ment
.
See
Fig
.
2
.
iii
Fig
.
2
.
Service
indicator
reset
tool
installed
in
diagnostic
connector
(aftermarket
tool
shown)
.
CAUTION-
Follow
themanufacturer's
directions
when
reset-
ting
the
service
Indicator
.
If
the
reset
procedures
are
done
incorrectly,
the
reset
tool
or
the
electron-
ic
service
indicator
may
be
damaged
.
MAINTENANCE
PROGRAM
020-
3
Table
a,b,c,
and
don
the
following
pages
list
the
routine
maintenance
tasks
specified
by
BMW
.
The
intervals
for
most
of
thesetasks
are
determined
by
the
Service
Indicator
.
The
main-
tenance
intervals
for
afew
additional
items
are
based
on
either
elapsedmileage
ortime
.
These
intervals
are
indicated
in
sepa-
rate
tables
.
Except
where
noted,
the
maintenance
items
listed
apply
to
all
models
and
model
years
coveredby
this
manual
.
The
columns
on
the
rightsitie
of
each
table
give
quick-referente
information
about
the
job
.
The
bold
text
references
the
repair
groups
where
additional
repair
information
can
befound
.
MAINTENANCE
TABLES
130-
6
FUEL
INJECTION
Warnings
and
Cautions
For
personal
safety,
as
well
as
the
protection
of
sensitive
electronic
components,
the
following
warnings
and
cautions
should
be
adhered
to
when
working
on
the
engine
manage-
ment
system
.
GENERAL
WARNING
-
"
The
ignition
system
produces
high
voltages
that
can
be
fatal
.
Avoid
contact
with
exposed
termi-
nals
.
Use
extreme
caution
when
working
onacar
with
the
ignition
switched
on
or
the
engine
run-
ning
.
"
Do
not
touch
or
disconnect
any
high
voltage
ca-
bles
from
the
coils
or
spark
plugs
while
the
engine
is
running
or
beingcranked
by
the
starter
.
"
Connect
and
disconnect
the
DME
system
wiring
and
test
equipment
leads
only
when
the
ignition
is
switched
off
.
"
Gasoline
is
highly
flammable
and
fts
vaporsare
explosive
.
Do
not
smoke
or
work
on
a
car
near
heaters
or
other
fire
hazards
when
diagnosing
and
repalring
fuel
system
problems
.
Have
a
tire
extinguisher
avaílable
in
case
of
an
emergency
.
"
When
working
onan
open
fuel
system,
wear
suit-
able
hand
protection,
asprolonged
contact
wfth
fuel
can
cause
illnesses
and
skin
disorders
.
"
Renew
fuel
system
hoses,
clamps
and
O-rings
any
timethey
are
removed
.
"
Before
makingany
electrical
tests
that
require
the
engine
to
be
cranked
using
the
starter,
disable
the
ignition
system
as
described
in
120
Ignition
System
.
CAUTION-
"
Prior
to
disconnecting
the
battery,
read
the
bat-
tery
disconnectinn
cautions
given
at
the
front
of
this
manual
onpage
vifi
.
"
Do
not
connect
any
test
equipment
that
delivers
a
12-volt
power
supply
to
terminal
15
(+)
of
the
ig-
nitioncoil
.
The
current
flow
may
damage
the
ECM
.
In
general,
connect
test
equipment
only
as
speclfied
by
BMW,
this
manual,
or
the
equipment
maker
.
"
Only
use
a
digital
multlmeter
for
electrical
test
.
"
Only
use
an
LED
test
light
for
quick
tests
.
"
Disconnecting
the
battery
may
erase
fault
code(s)
stored
in
memory
.
Check
for
fault
codes
prior
to
disconnecting
the
battery
cables
.
ff
the
Check
Engine
light
ís
illuminated,
see100En-
gine-General
for
DME
fault
code
information
.
ff
any
other
system
faults
have
been
detected
(indi-
catedbyan
illuminated
warning
light),
see
an
au-
thorized
BMW
dealer
.
Additional
systems
with
self-diagnostic
capabilities
include,
ABS
(Anti-
lock
brakes),
SRS
(Airbags),
EML
and
ASC+T
and
AST
(Traction
Control)
.
"
Do
not
run
the
engine
wfth
any
of
the
spark
plug
wires
dlsconnected
.
Catalytic
converter
damage
may
result
.
"
Always
waitat
least
40
seconds
afterturning
off
the
ignition
before
removing
the
engine
control
module
(ECM)
connector
.
ff
the
connector
isre-
moved
before
this
time,
residual
power
in
the
sys-
tem
relay
may
damage
the
control
module
.
"
Cleanliness
is
essential
when
working
onan
open
fuel
system
.
Thoroughly
clean
fuel
line
con-
nections
and
surroundlng
areas
before
loosen-
ing
.
Avoid
moving
the
car
.
Only
fnstall
cleanparts
.
"
Fuel
system
cleaners
and
other
chemical
addi-
tives
other
than
those
specifically
recommended
by
BMW
may
damage
the
catalytic
converter,
the
oxygensensor
or
other
fuel
supply
components
.
Oxygen
Sensor
FUEL
DELIVERY
TESTS
FUEL
INJECTION
130-
9
"
Voltage
at
¡dle
..
.
..
..
....
0
.2
to
0
.8
VDC,
fluctuating
Checking
fuel
delivery
is
afundamental
part
of
trouble-
shooting
and
diagnosing
the
engine
management
system
.
Fuel
pressure
directly
influences
fuel
delivery
.
An
accurate
NOTE-
fuel
pressure
gauge
will
be
needed
to
make
the
tests
.
To
check
sensorresponse
to
lean
and
rich
mixtures,
createenairleak,
orpull
vacuumhoseofffue¡
pressure
There
are
three
significant
fuel
delivery
values
to
be
mea-
regulator
to
increase
fuel
pressure
.
sured
:
3
.
Separate
sensorharness
connector
from
sensor
.
Check
for
battery
voltage
between
terminals
3
and
4
(green
wire
and
brown
wire)
in
main
wiring
harness
side
of
con-
nector
with
engine
running
.
If
voltage
is
not
present,
check
oxygen
sensor
heater
relay
.
See610
Electrical
Component
Locations
.
4
.
Check
heater
element
resistance
between
terminals
3
and
4
in
sensor
side
of
connector
.
If
element
is
electri-
cally
open
(no
continuity),
replace
sensor
.
NOTE-
The
oxygen
sensor
heater
relay
is
mounted
in
the
main
power
distributfon
box
in
the
left
rear
of
the
engine
com-
partment
.
Refer
to
Fig
.
6
.
The
heater
relay
is
energized
wíth
positive
(+)
battery
voltage
from
the
main
relayanda
switched
ground
from
the
ECM
.
See
Electrical
Wir-
ing
Diagrams
.
"
Oxygen
sensor
to
exhaust
pipe
...
..
55
Nm
(41
ft-Ib)
"
System
pressure-created
by
the
fuel
pump
and
main-
tained
by
the
pressure
regulator
.
"
Fuel
delivery
volume-created
by
the
fuel
pump
and
af-
fected
by
restrictions,
suchasclogged
fuel
filter
.
"
Residual
pressure-the
pressure
maintained
in
the
closed
system
after
the
engine
and
fuel
pump
are
shut
off
.
Procedures
for
measuring
the
first
two
quantities
arede-
scribed
in
160
Fuel
Tank
and
Fuel
Pump
.
Residual
fuel
pres-
sure
is
checked
using
the
procedure
detailed
later
in
this
group
.
Operating
fuel
pump
fortests
To
operate
the
fuel
pump
for
testing
purposes
without
hav-
íng
to
runthe
engine,
the
fuel
pump
relay
can
be
bypassed
to
power
the
pump
directly
.
Fuel
pump
relay
location
is
shown
in
Fig
.
6
.
5
.
¡f
oxygen
sensor
doesn't
produce
a
fluctuating
voltage
To
runthe
fuel
pump,
remove
the
fuel
pump
relay
and
con-
and
preheater
circuit
is
OK,
replace
sensor
.
nect
the
socket
for
relayterminal
30
to
the
socket
for
relay
ter-
mina¡
87
with
a
fused
jumper
wire
.
After
completing
the
tests,
NOTE-
remove
the
jumper
wire
.
If
not
already
applied,
coat
the
oxygen
sensor
threads
with
an
anti-seize
compound
before
installation
.
Do
not
CAUTION-
getthe
compound
on
the
sensor
tip
.
"
Relay
locations
may
vary
.
Use
care
when
identi-
fying
relays
and
making
electrical
checks
at
the
fuselrelay
panel
.
See
610
Electrical
Compo
Tightening
Torque
nent
Locations
for
additional
relay
information
.
"
The
fuel
pump
relay
has
a
1
.5
mm2
red
wire
at
ter-
minal
30
in
the
relay
socket
.
Terminal
87
has
a
1
.5
mm
2
greenlviolet
wire
.
See
Electrical
Wiring
Di-
agrams
for
additional
wiring
information
.
NOTE-
Thejumper
wire
should
be
1.5
mm2
(14
ga
.)
and
in-
clude
an
in-line
tuse
holder
with
a15
amp
tuse
.
To
avoid
fuselrelay
panel
damage
from
repeated
connect-
ing
and
disconnecting,
also
include
a
toggle
switch
.
A
heavy-duty
jumper,
BMW
tool
no
.
61
3
050,
is
also
available
from
an
authorized
BMW
dealer
.
FUEL
DELIVERYTESTS