1995 BMW M3 accessories

B
-
1
ROBERT
BENTLEY,
INC
.
I
AUTOMOTIVE
PUBLISHERS

Information
that
makes



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WARNING-Important
Safety
Notice

Technical
Contact
Information

We
value
your
feedback
.
Technical
comments
and
suggestions
are
helpful
to
us
.
Please
send
your
comments
and
thoughts
to
Bentley
Publishers
e-mail
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.bmw@rb
.co
m

From
timeto
time,
updates
may
be
made
tothis
manual
.
A
listing
of
updates
canbe
found
on
the
web
Iat
www
.rb
.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
retrieval
system,
or
transmitted
in
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form
orby
any
means,
electronic,
mechanical,
photocopying,
recording,
or
otherwise,
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the
prior
written
consent
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thepublisher
.
This
includes
text,
figures,
and
tables
.
All
rights
reserved
underBerne
andPan-American
Copyright
conventions
.
Manufactured
in
the
UnitedStates
of
America

General
Data
and



010
FundamentalsfortheDo-lt-YourselfOwner

Maintenance



020
Maintenance
Program

Engine

Transmission

Suspension,

Steering
and

Brakes

4
Body

100
Engine-General

110



Engine
Removal
and
Installation
113



Cylinder
Head
Removal
and
Installation
116



Cylinder
Head
and
Valvetrain
117



Camshaft
Timing
Chain

119



Lubrication
System

200
Transmission-General
210
Clutch
230
Manual
Transmission

510



Exterior
Trim,
Bumpers



520



Seats

Bo
y
Equipment



512
DoorWTdws



540



nr
t

513



InteriorTrim



541



Convertible
Top

515



Central
Locking
and
Anti-Theft

600



Electrical
System-General



620



Instruments

Electrical
S



stem
610
Electrical
Component
Locations



630
Exterior
Lighting

611



Wipers
and
Washers



640



Heating
and
Air
Conditioning

6



612



Switches
and
Electrical
Accessories



650



Radio

Equipment
and



720
SeatBelts

Accessories



721
Airbag
System
(SRS)

Electrical
Wiring

Diagrams

Foreword
.
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v

Warnings
and
Cautions
.....
.
...
.
.
.
.
.
..........
.
...
.
.
.
.
.
......
.
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............
.
.
.
.
.
.
.vii

Index
..............
.
.
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.
............
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...
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......
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...
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.
.
.
........
.
.
.
..
back
of
book

300



Suspension,
Steering
and



330



RearSuspension

Brakes-General



331



Final
Drive

310



Front
Suspension



340



Brakes

320



Steering
and
Wheel
Alignment

400
Body-General



411
Doors

410



Fenders,
Engine
Hood



412



Trunk
Lid

120



Ignition
System
121



Battery,Starter,
Alternator
130



Fue¡
Injection
160



Fuel
Tank
and
Fuel
Pump
170



Radiator
and
Cooling
System180



Exhaust
System

240



Automatic
Transmission
250



Gearshift
Linkage

260
Driveshaft

Foreword

This
service
manual
covers
1992
through
1998
BMW
3
Series
models,
and
is
specifically
de-
signed
to
cover
only
those
models
built
for
sale
in
the
United
States
.

BMW,
and
most
accessories
and
parts
sellers
specializing
in
BMWs,
refer
to
the
3
Seriescars

coveredby
this
manual
as
the
E36
model
.
The
code
"E36"
is
BMW's
internal
code
for
the
basic
plat-

form
sharedby
al¡
of
the
cars
coveredby
this
manual
.
Except
for
the
engine
and
a
few
other
compo-

nents,
the
models
coveredby
this
manual
share
many
of
same
components
suchas
suspension

parts,
body
panels,
and
the
interior
pieces
.
When
ordering
parts,
especially
body
parts,
knowing
the

E36
code
may
be
helpful
.

BMW
also
usesan
interna¡
code
for
the
enginesused
in
the
3
Series
models
.
Consult
the
text
in

the
100
Engine-General
repair
group
ofthis
manual
for
a
complete
listing
of
engine
codes
.
Engine
-

code
information
is
primarily
used
internally
by
BMW,
but
may
be
helpful
if
you
haveaccess
to
BMW

technical
information
.

Forthe
BMW
ownerwith
basic
mechanical
skills,
this
manual
gives
detailed
maintenance
and
re-

pair
information
.
In
addition,
the
BMW
owner
who
hasno
intention
of
working
on
his
or
her
own
car

will
findthat
owning
and
reading
this
manual
will
make
it
possibleto
be
better
informed
and
todis-

cuss
repairs
more
intelligently
with
a
professional
technician
.
This
manual
has
been
prepared
from

the
repair
information
that
BMW
provides
to
its
factory-trained
technicians
and
has
been
developed

primarily
with
the
do-it-yourself
BMW
owner
in
mind
.
The
aim
throughout
has
been
clarity
and
un-

derstanding
with
practical
descriptions,
step-by-step
procedures,
and
accurate
specifications
.

The
BMW
owner
intending
to
do
maintenance
and
repair
should
have
a
set
of
tools
including
a
set

of
metric
wrenches
and
sockets,
screwdrivers,
a
torque
wrench,
and
feeler
gauges,
since
these
ba-

sic
tools
will
beused
to
do
the
majority
of
the
maintenance
and
repair
procedures
described
in
this

manual
.
This
manual
includes
detailed
information
onthese
basic
tools
and
other
tips
for
the
begin-

ner
in
the
first
section
of
the
manual,
entitled
010
Fundamentals
for
the
Do-It-Yourself
Owner
.

For
some
of
the
repairs
described
in
this
manual,
BMW
technicians
use
special
tools
.
The
text
will

note
when
a
repair
requires
these
special
tools
and,
where
possible,
will
recommend
practica¡
alter-

natives
.

010-2



FUNDAMENTALS
FOR
THE
DO-ITYOURSELF
OWNER

HOW
TO
USE
THIS
MANUAL

A
note
contains
helpfulinformation,
tipsthat
will
hefp
in
The
manual
is
divided
into
ninesections
:



doinga
better
job
and
completing
!t
more
easíly
.

0
GENERAL
DATA
AND
MAINTENANCE

1
ENGINE

2
TRANSMISSION

3
SUSPENSION,
STEERING
AND
BRAKES

4
BODY

5
BODY
EQUIPMENT

6
ELECTRICAL
SYSTEM

7
EQUIPMENTANDACCESSORIES

ELECTRICAL
WIRING
DIAGRAMS

0
GENERAL
DATA
AND
MAINTENANCE
coversthe
rec-

ommended
maintenance
schedules
and
service
procedures

needed
to
perform
BMW
scheduled
maintenance
work
.
Also

within
this
section
is
the
010
Fundamentals
for
the
Do-It-

Yourself
Owner
section,
which
contains
basic
instructions,
tips
and
helpful
hints
for
do-it-yourself
maintenance
and
repair
.

The
next
seven
sections
(1
through
7)
are
repair
based
and

are
further
broken
down
into
three
digit
repair
groups
.
Each
ma-

jor
section
begins
with
a
General
repair
group,
e
.g
.
100En-

gine-General
.
These
"00"
(doublezero)
groups
aremostly

descriptive
in
nature,
covering
topics
suchas
theory
of
opera-
tion
and
troubleshooting
.
The
remainder
of
the
repair
groups

contain
the
more
involved
repair
information
.
The
last
major

section
contains
detailed
electrical
wiring
diagram
schematics
.

A
master
listing
of
the
9major
sections
and
the
correspond-
ing
individual
repair
groups
can
befoundon
the
inside
front
cover
.

Each
repair
group
begins
with
a
Table
of
Contents
listing
the

majos
subject
headings
within
the
group
.
Page
numbers

throughout
the
manual
are
organizedaccording
to
the
repair
groupsystem
.
For
example,
youcan
expect
tofind
repair
infor-
mation
on
brakes
(Repair
Group
340)
beginning
on
page
340-
1
.
A
comprehensive
index
can
be
found
at
the
back
of
the
man-

ual
.

Warnings,
Cautions
and
Notes
Throughout
this
manualare
many
passages
with
the
head-
ings
WARNING,
CAUTION,
or
NOTE
.
These
very
important
headings
have
diflerent
meanings
.

WARNING
-

The
text
under
this
heading
warns
of
unsafe
practic-
es
thatare
very
likelyto
cause
ínjury,
eitherby
dírect
threat
to
the
person(s)
pertorming
the
work
or
by
in-
creased
risk
of
accident
or
mechanfcal
fallure
whíle
driving
.

CAUTION-

A
caution
calls
attention
to
important
precautions
to
beobserved
during
the
repair
work
that
will
helo
prevent
accidentally
damaging
the
caror
its
parts
.

GETTING
STARTED

Safety

NOTE-

Please
read
every
WARNING,
CAUTION,
and
NOTE
at
the

front
of
the
manual
and
as
they
appear
in
repair
procedures
.

They
are
very
important
.
Read
them
before
you
begin
any

maintenance
or
repair
job
.

Some
WARNINGs
and
CAUTIONs
are
repeated
wherever

they
apply
.
Read
them
all
.
Do
not
skip
any
.
These
messages
are
important,
even
to
the
owner
who
never
intends
to
workon

thecar
.

GETTING
STARTED

Most
of
the
necessary
maintenance
and
minor
repair
that
an

automobile
will
need
canbe
done
with
ordinary
tools,
evenby

owners
with
little
or
no
experience
in
car
repair
.
Below
is
some

important
information
on
how
to
work
safely,
a
discussion
of

what
tools
will
be
needed
and
how
to
use
them
.

Although
an
automobile
presents
many
hazards,
common

sense
and
good
equipment
can
helo
ensure
safety
.
Many
acci-

dents
happen
because
of
carelessness
.
Pay
attention
and
stick
to
these
few
important
safety
rules
.

WARNING
-

"
Never
run
the
engine
in
the
work
area
unless
it
is
well-ventflated
.
Theexhaustshouldbe
vented
to
the
outside
.
Carbon
monoxide
(CO)
in
theex-
haust
kilts
.

"
Remove
all
neckties,
scarts,
loose
clothing,
or
jewelry
when
working
near
running
engines
or
power
tools
.
Tuck
in
shirts
.
Tie
long
haír
and
se-
cure
it
under
a
cap
.
Severe
injury
can
result
from
these
things
beíngcaught
in
rotating
parts
.

"
Remove
ríngs,
watches,
and
bracelets
.
Asíde
from
the
dangersof
moving
parts,
metallic
jew-
elry
conducts
electricity
and
may
cause
shorts,
sparks,
bums,
or
damage
to
the
electrical
sys-
tem
when
accidentally
contacting
the
battery
or
other
electrical
terminals
.

"
Disconnect
the
battery
negative
()
cable
when-
ever
working
on
ornear
the
fuel
system
or
any-
thlng
that
is
electrically
powered
.
Accidental
electrícal
contact
may
damage
the
electrical
system
or
cause
a
fire
.

If
steam
is
coming
from
the
engine
compartment
thenthere
is



With
the
engine
and
ignition
off,
check
for
loose
or
corroded
most
likely
a
burst
coolant
hose
or
a
large
leak
in
the
cooling



battery
cables
or
wires
at
the
battery
or
thealtemator
.
Discon-
system
.
To
find
the
leak,
look
for
signs
of
coolant
leakage
on



necting,
cleaning,
and
reinstalling
corroded
wires
and
connec-
hoses,
at
hose
connections,
or
on
the
radiator
.
Let
theengine



tors
may
solve
the
problem
.
Also
check
drive
belt
tension
as
cool
thoroughly,
then
add
coolant
or
water
to
fill
the
system
and



described
in
020
Maintenance
Program
.
start
the
engine
.
If
a
great
deal
of
water
or
coolant
flows
out
of
the
hole,
then
thecarshouldnot
be
driven
until
repairs
are
made
.
lf
there
is
slight
seepage,
then
it
may
be
possible
to
drive



TOWi
ng

a
short
distance,
adding
coolant
as
needed
.
The
cars
covered
by
this
manual
should
be
towed
witha
tow
truck
using
wheel
lift
or
flat
bed
equipment
.
Do
not
tow
thecar
on
all
four
wheels
except
for
very
short
distances
to
move
it
to
a
safe
place
.
If
thered
engine
oil
pressure
warning
light
illuminates,
imme-
diately
stop
thecar
and
turn
off
the
engine
.
Have
the
vehicle



A
towing
eye
is
provided
in
the
luggage
compartment
tool
kit
.
flat-bedded
or
towed
to
an
authorized
service
center
and
have



The
towing
eye
can
be
screwed
into
the
front
or
rear
bumper
.
the
engine
oil
pressure
checked
.



See
Fig
.
18
and
Fig
.
19
.

Low
Oil
Pressure

NOTE-

Detafed
information
on
checking
the
oil
pressure
is
covered
ín
119
Lubrication
System
.

Brake
Fluid
Leve¡

The
brake
fluid
leve¡
warning
light
may
bean
indicator
of
brake
fluid
loss
.
Problems
with
the
brakesystem
should
be
checked
and
repaired
immediately
.
See
340Brakes
for
more

information
.

Check
Engine
Warning
Light

Dim
Lights

FUNDAMENTALS
FOR
THE
DO-IT
YOURSELF
OWNER



010-13

If
the
"CHECK
ENGI
NE"
warning
light
comes
on
or
flashes,
it
indicates
that
an
emissions-related
fault
has
occurred
.
Faults
suchas
a
failed
oxygen
sensor
or
a
faultyfuelinjector
can
tum

the
light
on,
causing
the
exhaust
or
evaporative
emissions
to

exceed
a
specified
limit
.
The
engine
can
be
safely
driven
with

the
light
on,
although
the
emission
systems
should
be
checked

assoonas
possible
.
See
100
Engine-General
for
more
infor-

mation
on
the
Check
Engine
Light
and
the
On-board
diagnostic

system
.

Headlights
and
instrument
panel
illuminationthat
are
dim
or

gradually
getting
dimmer
generally
indicate
a
problem
with
the

battery
or
charging
system
.
The
battery
charge
indicator
light

may
come
on
as
the
lights
are
dimming
.
In
either
case,
theen-

gine
and
accessories
are
running
off
of
the
battery
alone,
and

will
soon
discharge
it
altogether
.

If
possible,
do
not
stop
the
engine
unless
you
have
the
capa-

bility
to
jump
start
¡t
.
There
may
not
be
enough
power
in
the

starting
system
torestart
the
engine
.
Instead,turn
off
as
many

electrical
consumers
as
possible
.
This
will
reduce
the
current

drain
and
will
allow
thecar
to
be
driven
farther
before
you
lose

all
battery
power
.

Fig
.
18
.
Pry
open
rear
tow
lúg
access
panel
.

When
towingthecar
from
the
front
with
the
rear
wheelson

the
ground,
a
maximum
distance
of
20
miles
is
acceptable
.
If

thecar
needs
to
be
towed
further,
have
the
rear
wheels
placed
on
dollies
.

CA
UTION-

"
Do
not
tow
with
sling-type
equipment
The
front
spoilers
andbumper
covers
may
sustain
dam-
age
.

"
Towínga
BMW
with
an
automatic
transmission
with
the
rear
wheelson
the
ground
can
resuft
in
transmission
damage
due
to
lackof
lubrication
and
should
be
avoided
.

0013128

EMERGENCIES

Accelerator
and
Throttle
Linkage

The
accelerator
and
throttie
linkage
should
be
lubricated
pe-
riodically
.
Use
a
general
purpose
oil
on
the
joints
and
bearings

of
the
linkage
.
Use
a
multipurpose
grease
on
the
bearing
points

of
the
throttie
plate
.

Engine
Drive
Belts

Drive
belts
and
pulleys
transfer
power
from
theengine
crank-

shaft
to
various
accessories
.
See
Fig
.
13
.
Depending
on
model

and
model
year,
engine
driven
accessories
are
driven
by
V-

belts,
poly-ribbed
(serpentine)
belts,
or
a
combination
of
the

two
.
For
example,
early
4-cylinder
engines,
usetwo
V-belts
and
one
poly-ribbed
belt
.

Inspect
drivebelts
with
the
engine
off
.
lf
the
belt
shows
signs

of
wear,
cracking,
glazing,
or
missing
sections,
it
should
be
re-

placed
immediately
.

V
belt,
replacing

(4-cylinder
engines
built
up
to
1194)

0012472

Fig
.
13
.
Drive
belt
and
tensioner
assembly
for
late
4-cylinder
engine
wíth
poly-ribbed
drive
belt
.

V-belts
should
be
inspected
during
regular
maintenance
in-

tervais
.
Incorrect
tension
can
decrease
the
life
of
the
belt
and

the
component
it
drives
.
The
V-belt
tension
is
adjusted
through

a
toothed-rack
mechanism
.

Inspect
belts
with
the
engine
off
.
Twist
the
beltto
inspect
its

sidewalls
and
bottom
.
Beltstructural
damage,
glazed
or
shiny

sidewaljs
caused
by
a
loose
belt,
orseparation
are
al¡
reasons

to
replace
a
belt
.

Replacement
of
the
V-belts
every
four
years
is
recommend-

ed
.
Loosen
the
mounting
bolts
and
adjust
the
belt-driven
unit

until
the
belt
tension
is
as
loose
aspossible
.
Remove
the
belt
by

slipping
it
over
the
pulleys
.
In
some
cases
it
may
be
necessary

to
removeone
V-belt
to
get
to
another
.
Use
a
torque
wrench
and

a
crowfoot
wrench
to
turn
the
tensioning
gear
bolt
and
set
belt

tension
.
Hold
the
wrench
steady
and
tighten
the
locknut
on
the

rear
of
the
tensioning
gear
bolt
.
Tighten
al¡
other
mounting
nuts
.

MAINTENANCE
PROGRAM



020-
1
3

NOTE-

"
For
the
most
accurate
check,
V-belt
tension
should
be
checked
using
a
V-belt
tension
gauge
.

"
Belt
squealing
is
normally
caused
by
loose
beltten-sion
.
Belt
dressings
should
not
be
used
.

Tightening
Torques

"
Tensioning
gear
(alternator

belt
tensioning)
.
.
.
...............
7
Nm
(62
in-lb)

"
Tensioning
gear(power
steering

belt
tensioning)
...
..
...
8
to
8
.5
Nm
(71
to
75
in-lb)

"
Tensioning
gear
locking
nut
.......
24
Nm
(18
ft-Ib)

NOTE-

When
belts
are
replaced
with
new
ones,
store
the
old
set
in
the
luggage
compartment
for
emergency
use
.

When
installing
a
new
belt,
gently
pry
it
over
the
pulleys
.
Too

much
force
may
damage
the
belt
or
the
accessory
.
Tension
the

belt(s),
runthe
engine
for
a
few
minutes
(at
least
1500
rpm),

then
recheck
the
belt
tension
.

CAUTION-

Do
not
over
tighten
the
V-belts
.
Overtightening
will
cause
shaft
bearings
to
fail
prematurely
.

Poly-ribbed
belt,
replacing

(4-cylinder
engines
buiit
from
1194

and
all
6-cylinder
engines)

An
automatic
belt
tensioner
is
used
to
keep
the
belts
ten-

sioned
properly
.
Unless
the
tensioner
mechanism
malfunc-

tions,
the
poly-ribbed
belts
do
not
require
tension
adjustment
.

To
reduce
the
chance
ofbelt
failure
while
driving,
replace-

ment
of
the
belts
every
four
years
is
recommended
.
Mark
drive

belt
rotationdirectíon
if
removing
and
reusing
an
old
belt
.

To
remove
the
belt,
it
is
necessary
toretract
the
self-tension-

er
.
Using
a
breaker
bar
or
other
long
socket
assembly,
rotate

the
tensioner
to
loosenthe
belt
.
See
Fig
.
14
or
Fig
.
15
.
On
4-cyl-

inder
engines,
it
will
benecessary
to
remove
the
A/C
compres-

sor
belt
to
remove
the
main
drive
belt
.

WARNING
-

Observe
care
when
replacing
the
belt
.
Personal
in-
jury
could
result
if
the
tensioner
springs
back
into
position
uncontrollably
.

With
the
belt
removed
from
the
pulleys,
inspect
the
pulleys

for
wear
or
damage
that
may
cause
early
failureof
the
new
belt
.

This
is
also
a
good
opportunity
to
inspect
the
belt-driven
acces-

sories,
checking
for
bearing
wear
and
excess
play
.
Drive
belt

routing
is
shown
in
Fig
.
16
and
Fig
.
17
.

ENGINE
COMPARTMENT
MAINTENANCE

020-20



MAINTENANCE
PROGRAM

Seat
Belts



Washing
Chassis

Dirt
and
other
abrasive
particles
will
damage
seat
belt
web-



Periodic
washing
of
the
underside
of
the
car,
especially
in

bing
.
If¡t
is
necessary
to
clean
seat
belts,
use
a
mild
soap
solu-



winter,
will
help
prevent
accumulation
of
road
salt
and
rust
.
The

tion
.
Bleach
and
other
strong
cleaning
agents
may
weaken
the



besttime
to
wash
the
underside
is
just
after
the
car
has
been

belt
webbing
and
should
be
avoided
.



driven
in
wet
conditions
.
Spray
the
chassis
with
a
powerful
jet
of

water
.
Commercial
or
self-service
car
washes
may
not
be
best

WARNING-



for
this,
as
they
may
recycle
the
salt-contaminated
water
.

Do
not
clean
the
seat
belt
webbing
using
dry
clean-
ing
or
other
chemicals
.
Allow
wet
belts
to
dry
before
allowing
them
to
retract
.



Speeial
Cleaning

The
condition
of
the
belt
webbing
and
the
function
of
the
re-

tractor
mechanisms
should
be
inspected
.
See720
Seat
Belts
for
seat
belt
inspection
information
.

Exterior
Washing

The
longer
dirt
isleft
on
the
paint,
the
greater
the
risk
of
dam-
aging
the
glossy
finish,
either
by
scratching
or
by
the
chemical
effect
dirt
particles
may
have
on
the
paintedsurface
.

Do
not
wash
the
car
in
direct
sunlight
.
If
the
engine
hood
is

warm,
allow
it
to
cool
.
Beads
of
water
not
only
leavespots
when
dried
rapidly
by
the
sun
or
heat
from
the
engine,
but
also
can
act
as
small
magnifyingglasses
and
burn
spots
into
the
finish
.
Wash
thecar
with
a
mixture
of
lukewarmwater
and
a
car
wash
product
.
Rinse
using
plenty
of
clear
water
.
Wipe
the
body
dry
witha
soft
cloth
towel
or
chamois
to
prevent
water-spotting
.

Waxing

For
a
long-lasting,protective,
and
glossy
finish,
apply
a
hard
wax
after
thecar
has
been
washed
and
dried
.
Use
carnauba
or
synthetic
based
products
.
Waxing
is
not
needed
after
every
washing
.
You
can
tell
when
waxing
is
required
by
looking
at
the
finísh
when
it
is
wet
.
If
the
water
coats
the
paint
in
smooth
sheets
instead
of
forming
beads
that
rol¡
off,
a
new
coat
of
wax
is
needed
.
Wax
shouldnot
be
applied
to
black
trim
pieces,
rub-
ber,or
other
plastic
parts
.

Polishing

Use
paintpolish
only
if
the
finish
assumes
a
dull
lock
after
long
service
.
Polish
can
beused
to
remove
tar
spots
and
tar-
nish,
but
afterwards
a
coat
of
wax
should
be
applied
to
protect
the
clean
finish
.
Do
not
use
abrasive
polish
or
cleaners
on
alu-
minum
trimor
accessories
.

BODYAND
INTERIOR
MAINTENANCE

Cylinder
Head
and
Valvetrain

The
aluminum
cylinder
head
uses
chain-driven
double

overhead
camshafts
and
four
valves
per
cylinder
.
See
Fig
.
1
.
Tha
rvfinriar
hand
nmnlnve
n
ernceflnier
rineinn
fnr
nronter

Tar
spots
canbe
removed
with
a
bugand
tar
remover
.
Never

use
gasoline,
kerosene,
nail
polish
remover,
or
other
unsuitable

solvents
.
Insect
spots
also
respond
to
tar
remover
.
A
bit
of
bak-

ing
soda
dissolved
in
the
wash
water
will
facilitate
their
removal
.
This
method
can
also
beused
to
remove
spotting
from
tree
sap
.

Interior
Care

Dirt
spots
can
usually
be
removed
with
lukewarm
soapy
wa-
ter
or
a
dry
foam
cleaner
.
Use
spot
remover
for
grease
and
o¡I

spots
.
Do
not
pour
the
(quid
directly
on
the
carpetor
fabric,
but
dampen
a
clean
cloth
and
rub
carefully,starting
at
the
edge
of
the
spot
and
working
inward
.
Do
not
use
gasoline,
naptha,
or

other
flammable
substances
.

Leather
Upholstery
and
Trim

Leather
upholstery
and
trim
should
be
periodically
cleaned
using
a
slightly
damp
cotton
or
wool
cloth
.
The
idea
is
to
get
rid
of
the
dirtin
the
creases
and
pores
that
can
cause
brittleness
and
premature
aging
.
On
heavily
soiled
areas,
usea
mild
deter-
gent
(such
as
Woolite®)
or
other
specially
formulated
leather
r

cleaners
.
Use
two
tablespoons
to
one
quart
of
cold
water
.
Dry

the
trim
and
upholstery
completely
using
a
soft
cloth
.
Regular
use
of
agood
quality
leather
conditioner
will
reduce
drying
and
crackingof
the
leather
.

1
.
Camshafts
2
.
Rocker
arms
3
.
Hydraulic
valve
adjusters
(HVA)
4
.
Valve
and
conical
valve
spring

121-2



BATTERY,
STARTER,
ALTERNATOR

CHARGING
SYSTEM
TROUBLESHOOTING



Static
currentdraw,
checking

Charging
system
diagnostics
requires
special
test
equip-

ment
.
If
the
test
equipment
is
not
available,
charging
system

fault
diagnosis
can
be
performedby
an
authorized
BMW
deal-

eror
other
qualified
repair
shop
.
A
general
troubleshooting

guide
is
given
in
Table
a
.

Charging
System
Quick-Check

As
a
quick-check,
use
a
digital
multimeter
lo
measure
volt-



2
.
Disconnect
battery
negative
(-)
cable
.

age
across
the
battery
terminals
with
the
key
off
and
then

again
with
the
engine
running
.
The
battery
voltage
should
be



CAUTION-
about12
.6
volts
with
key
off
and
approximately
14
.0
volts
with



Prior
to
disconnecting
the
battery,
read
the
battery
the
engine
running
.
If
the
voltage
does
not
increase
when
the



disconnection
cautions
given
at
the
front
of
this
engine
is
running,there
is
a
fault
in
the
charging
system
.



manual
onpaga
viii
.

NOTE
-

The
regulated
voltage
(engine
running)
should
be
be-
tween
13
.5
and
14
.5,
depending
on
temperatura
and
operating
conditions
.
If
the
voltage
is
higher
than
14
.8,
the
voltage
regulator
is
most
Mely
faulty
.

Check
for
clean
and
tight
battery
cables
.
Check
the
ground

cable
running
from
the
negative
(-)
battery
terminal
lo
the

chassis
and
the
ground
cable
running
from
the
engine
lo
the

chassis
.
Check
the
alternator
drive
belt
condition
and
tension
.

If
the
battery
discharges
over
time,
there
may
be
a
constant

drain
or
current
draw
on
the
battery
.
A
small
static
drain
on
the

battery
is
normal,
but
a
largedrain
will
cause
the
battery
lo

quickly
discharge
.
Make
a
static
current
draw
test
asthe
first

step
when
experiencing
battery
discharge
.

1
.
Make
sure
ignition
and
al¡
electrical
accessories
are

switched
off
.

3
.
Connect
a
digital
ammeter
between
negative
battery

post
and
negative
battery
cable
lo
measure
current
.

See
Fig
.
1
.
Wait
at
least
one
minuta
lo
get
an
accurate

reading
.

A
range
of
about
0
lo
100
milliamps
is
normal,
dependingon

the
number
of
accessories
that
need
constant
power
.
A
current

of
400
milliamps
(0.4
amp)
or
more
may
indicate
a
problem
.

Table
a
.
Battery,
Starter
and
Charging
System
Troubleshooting

Symptom



1



Probable
Cause



1



Correctiva
Action

1
.
Engine
cranks
slowlyor
not



a
.
Battery
cables
loose,
dirty
orcor-



a
.
Clean
or
replace
cables
.
See020
Maintenance
Program
.
a
tall,
solenoíd
clicks
when



roded
.
starter
is
operated
.



b
.
Battery
discharged
.



b
.
Charge
battery,
test
and
replace
if
necessary
.
c
.
Body
ground
straploose,
dirty
or



c
.
Inspect
ground
strap,
clean,
tighten
or
replace
if
necessary
.
corroded
.
d
.
Poor
connection
at
starter
motor



d
.
Check
connections,
test
for
voltage
at
starter
.
Test
for
voltage
at
terminal
30
.



neutral
safety
or
clutch
interlock
switch
.
e
.
Starter
motor
or
solenoid
faulty
.



e
.
Test
starter
.

2
.
Battery
will
not
stay



a
.
Short
circuit
draining
the
battery
.



a
.
Test
for
excessive
current
drainwith
everything
electrical
in
the
charged
more
than
a
few



vehicle
off
.
days
.



b
.
Short
driving
trips
and
high
elec-



b
.
Evaluate
driving
style
.
Where
possible,
reduce
electrical
con
trical
drain
on
charging
system



sumption
when
making
short
trips
.
does
not
allow
battery
to
re-
charge
.
c
.
Drive
belt(s)
worn
or
damaged
.



c
.
Inspect
or
replace
multi-ribbed
belt(s)
.
See
020
Maintenance
Program
.
d
.
Battery
faulty
.



d
.
Test
battery
and
replace
íf
necessary
.
e
.
Battery
cables
loose,
dirty
orcor-



e
.
Clean
or
replace
cables
.
See
020
Maintenance
Program
.
rodad
.
f
.
Alternatoror
voltage
regulator



f
.
Test
alternator
and
voltage
regulator
.
faulty
.

3
.
Battery
losing
water
.



1
a
.
Battery
overcharging
.



1
a
.
Test
voltage
regulator
for
proper
operation
.

4
.
Lights
dim,
light
intensity



a
.
Drive
belt(s)
worn
or
damaged
.



a
.
Inspect
or
replace
multi-ribbed
belt(s)
.
See
020
Maintenance
varies
with
engine
speed
.



Program
.
b
.
Alternatoror
voltage
regulator



b
.
Test
alternator
and
voltage
regulator
.
faulty
.
c
.
Body
ground
straps
loose,
dirty
or



c
.
Inspect
ground
straps,
clean,
tighten
or
replace
as
necessary
.
corroded
.

CHARGING
SYSTEM
TROUBLESHOOTING