drain bolt BMW 328i 1995 E36 Workshop Manual
[x] Cancel search | Manufacturer: BMW, Model Year: 1995, Model line: 328i, Model: BMW 328i 1995 E36Pages: 759
Page 7 of 759
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
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 32 of 759
020-
1
0
MAINTENANCE
PROGRAM
1.
Run
engine
for
afewminutes
to
warm
engine
oil
.
Shut
5
.
When
oil
flow
has
diminished
to
an
occasional
drip,
re-
engine
off
.
install
drain
plugwith
a
new
metal
sealing
washerand
torque
plug
.
2
.
With
car
on
level
ground,
place
drain
pan
under
oil
drain
plug
.
See
Fig
.
5
.
Tightening
Torques
"
Engine
oil
drain
plug
M12
bolt
(17mm
wrench)
.
...
.
..
.
25
Nm
(18
ft-Ib)
-
M22
bolt
(19mm
.
wrench)
...
.
...
.
60
Nm
(44
ft-Ib)
Fig
.
5
.
Engine
oil
drain
plug(arrow)
in
oil
pan
.
3
.
Remove
filter
housingcover
.
Remove
filter
cartridge
and
discard
any
O-rings
.
See
Fig
.
6
.
CAUTION-
Pulí
the
loose
plug
away
from
the
hole
quickly
to
avoidbeing
bumed
by
hot
oil
.
It
wíll
runout
quickly
when
the
plug
ís
removed
.
If
possible,
use
gloves
to
protect
your
hands
.
ENGINE
COMPARTMENT
MAINTENANCE
0012460
Fig
.
6
.
Engine
oil
filter
cartridge
.
Note
O-ring
locations
when
removing
cover
and
filter
.
4
.
Using
a
socket
or
box
wrench,
loosen
drain
plug
at
oil
drain
pan
.
By
hand,
remove
plug
and
letoil
drain
into
pan
.
6
.
Lubricate
and
install
new
O-rings
.
Install
a
new
filter
cartridge
and
housingcover
.
Tighten
cover
.
See
Fig
.
7
.
7
«
a~
.~~
fT~
iII~IIIi~
.
Fig
.
7
.
Oil
flter
housing
on
6-cylínder
engine
.
4-cylinder
engine
is
similar
.
Tightening
Torque
"
Engine
oil
filter
cover
to
oil
filter
housing
...................
25
Nm
(18
ft-Ib)
7
.
Refill
crankcase
with
oil
.'Approximate
oil
capacity
is
list-
ed
in
Tablee
.
Use
dipstick
to
check
correct
oil
level
.
8
.
Start
engine
and
check
that
oil
pressure
warning
light
immediately
goes
out
.
9
.
Allow
engine
to
run
for
a
few
minutes
to
círculate
new
oil,
then
check
for
leaks
at
drain
plug
and
oil
filter
.
Stop
engine
and
reclieck
oil
level
.
ENGINE
COMPAR
ENT
MAINTENANCE
The
information
underthis
heading
describes
routine
mainte-
nance-other
than
oil
change-done
in
the
engine
compart-
ment
.
It
is
not
necessary
for
the
car
to
be
raised
and
supported
off
the
ground
.
Information
on
oil
change
is
given
earlier
under
Engine
Oil
Change
.
Page 61 of 759
14
.
Unbolt
power
steering
fluid
reservoir
from
íts
mounting
bracket
.
Use
stiff
wire
to
hang
reservoir
to
one
side
.
Do
not
disconnect
fluid
lines
.
15
.
Remove
power
steering
pump
drive
belt
and
remove
pump
from
its
mounting
bracket
.
Use
stiff
wire
to
hang
pump
from
body
.
16
.
On
cars
with
automatic
transmission
remove
front
and
rear
brackets
holding
automatic
transmission
cooler
linesto
engine
.
17
.
Remove
A/C
compressor
from
its
mounting
bracket
without
disconnecting
any
refrigerantlines
.
See
Fig
.
5
.
ENGINE
REMOVAL
AND
INSTALLATION
110-
3
21
.
Remove
front
exhaust
pipefrom
exhaust
manifold
.
See
Fig
.
6
.
22
.
Install
an
engine
lifting
device
and
raise
engine
until
its
weight
is
supported
.
Remove
nuts
and
ground
strap
from
left
and
right
engine
mounts
.
0011967
Fig
.
6
.
Front
exhaustpipe
to
exhaust
mounting
nuts
(arrows),
as
viewed
from
below
on
4-cylinder
engine
.
23
.
Carefully
raíse
engine
out
of
car,
checking
for
any
wir-
ing
harnesses,
fuel
lines,
or
mechanical
parts
that
might
become
snagged
as
engine
is
removed
.
24
.
Installation
is
reverse
of
removal,
noting
the
following
:
"
Replace
all
gaskets,
O-rings
and
seals
.
"
Change
engine
oil
and
filter
and
check
al¡
other
fluid
levels
.
See020
Maintenance
Program
.
"
Refill
and
bleed
cooling
system
.
See
170
Radiator
and
Cooling
System
.
"
Insta¡¡
the
front
exhaust
pipes
using
new
gaskets
and
self-locking
nuts
.
Use
copper
pasteon
threads
.
See
180
Exhaust
System
.
Tightening
Torques
"
Coolant
drain
plug
to
cylinder
block
.
25
Nm
(18
ft-Ib)
Fig
.
5
.
A/
C
compressor
mounting
bolts
(arrows)
.
"
Engine
mount
to
subframe
M8
......:...
..
..
..
......,:..
22
Nm
(17
ft
-
1b)
,
18
.
Move
A/C
compressor
out
of
way
without
distorting
or
M10
.
...
.
..
...
.
.
...........
45
Nm
(33
ft'-Ib)
damaging
any
lines
.
Support
compressor
by
hanging
it
"
Intake
manifold
to
cylinder
head
from
chassis
using
stiff
wire
.
M7
.....
.
..
...
..
..
...........
15
Nm
(11
ft-Ib)
M8
...
.
.
.
..
..
...
..
...........
22
Nm
(16
ft-Ib)
19
.
Disconnect
wiring
from
starter
and
alternator
.
Move
`
"
Radiator
cooling
fan
to
coolant
pump40
Nm
(30
ft-Ib)
wiring
harness
out
of
way
.
See
121
Battery,
Starter,
"
Radiator
drain
screw
to
radiator
...
2
.5
Nm
(22
in-lb)
Alternator
.
"
Wiring
to
alternator
(M8
nut)
........
12
Nm
(9
ft-1b)
"
Wiring
to
starter
20
.
Remove
oil
dipstick
guide
tube
.
Note
O-ring
at
base
of
M6
nut
..
.
..
..
...
..
...........
.
:5
Nm
(44
in-lb)
tube
when
removing
.
M8
nut
..
.
..
..
...
..
............
12
Nm
(9
ft-Ib)
ENGINE
REMOVAL
AND
INSTALLATION
Page 63 of 759
11
.
Draín
engine
coolant
and
Rmove
coolant
hoses
at-
tached
to
cylinder
head
.
"
Drain
engine
block
byremoving
block
drain
.
"
Disconnect
hoses
from
thermostat
housing
in
front
of
cylinder
head
.
"
Disconnect
heater
hoses
at
rear
of
engine
.
See
Fig
.
9
.
"
Drain
radiator
by
removingthreaded
plastic
plug
from
lower
left
comer
.
NOTE-
"
The
block
drain
plug
is
located
oh
the
exhaust
side
to-
wards
rear
ofengine
.
"
Remove
small
plastic
lock
clipto
pulíradiator
draín
plug
out
completely
.
NOTE-
CAUTION-
Radiatorfan
has
left
hand
threads
.
ENGINE
REMOVAL
AND
INSTALLATION
110-
5
Fig
.
9
.
Coolant
hoses
at
heater
valve
and
heater
core
to
be
discon-
nected
(arrows)
.
12
.
Remove
radiator
cooling
fan
and
radiator
as
described
in
170
Radiator
and
Cooling
System
.
13
.
Label
and
disconnectcoolant
hoses,
cables,
and
har-
ness
connectors
from
throttle
housing
.
See
Fig
.
10
.
14
.
Working
atrearof
intake
manifold,
label
and
then
re-
move
fuel
supply
and
fuel
retum
lines
.
Disconnect
fuel
lines
from
support
bracket
on
manifold
.
See
Fig
.
11
.
uu12ivu
Fig
.
10
.
Throttle
housing
assemblyon
M52
engine
.
Disconnect
hos-
es,
cables
and
harness
connectors
at
and
around
housing
.
0012699
Fig
.
11
.
Special
fuelline
fitting
at
fuel
rail
on
M52/S52US
engine
.
Use
BMW
special
tool
16
1
050
to
releaselocking
fittings
at
ends
offuel
lines
.
WARNING
-
"
Fuel
may
be
expelled
under
pressure
.
Do
not
smoke
or
work
near
heaters
or
other
fire
haz-ards
.
Keep
a
fire
extinguísher
handy
.
Before
dis-
connecting
fuel
hoses,
wrapa
cloth
around
fuel
hoses
to
absorb
any
leaking
fuel
.
Plug
all
oyen
fuel
fines
.
"
Always
unscrew
the
fuel
tank
cap
to
release
pres-
sure
ín
the
tank
before
working
on
the
tank
or
lines
.
OnM52
and
S52US
engines,
special
fittings
are
used
to
retain
the
fuel
lines
to
the
fuel
rail
.
Use
BMW
special
16
.
Remove
intake
manifold
from
engine
byremoving
sev-
tool
no
.
161050
to
compress
the
locking
clip
insidethe
en
mounting
nuts
from
above
andtwo
mounting
bracket
end
of
the
fuel
line
fittings
to
release
the
fine
.
boits
from
below
.
See
Fig
.
12
.
15
.
Unbolt
power
steering
fluid
reservoir
from
its
mounting
CAllTION-
bracket
.
Use
stiff
wire
to
hang
reservoir
to
one
side
.
Do
Stuff
clean
rags
into
the
open
intake
ports
to
pre-
not
disconnect
fluid
fines
.
vent
any
parts
from
falling
into
the
engine
intake
.
ENGINE
REMOVAL
AND
INSTALLATION
Page 67 of 759
113
Cylinder
Head
Removal
and
Installation
GENERAL
.
...............
.
.
.
.
.
.......
113-1
CYLINDER
HEAD,
6-CYLINDER
.
.
.
.
.
.
.
113-10
Cylinder
head,
removing
(6-cylinder
engine)
..
113-10
CYLINDER
HEAD,
4-CYLINDER
..
.
...
.
.
113-1
Cylinder
head,
installing
(6-cylinder
engine)
...
113-15
Cylinder
head,
removing
(4-cylinder
engine)
...
113-1
E
Cylinder
head,
installing
(4-cylinder
engine)
...
113-6
GENERAL
CYLINDER
HEAD,
4-CYLINDER
The
information
given
inthis
repair
group
assumes
that
the
engine
is
installed
in
the
engine
bay
.
For
cylinder
head,
cam-
Cylinder
head,
removing
shaft,
and
valvetrain
disassembly
and
reconditioning
informa-
(4-cylinder
engine)
tion,
see116
Cylinder
Head
and
Valvetrain
.
For
ease
of
use
this
removal
procedure
is
broken
into
sub-
In
the
procedures
given
below,
engines
are
referred
to
by
sections,
as
follows
:
engine
code
.
If
necessary,
see100
Engine-General
for
en-
gine
code
and
application
information
.
NOTE-
If
a
head
gasket
problem
is
suspected,
acompression
test
will
usually
detectthe
fault
.
See
100
Engine-Gen-
eral
for
compression
testing
information
.
Special
BMW
service
tools
are
required
to
properly
remove
and
install
the
cylinder
head
on
both
the
4-cylinder
and
6-cyl-
inder
engines
.
The
special
tools
are
used
to
time
the
val-
vetrain
to
the
crankshaft
and
to
remove
the
Torx
(El
2)
head
bolts
.
Read
the
procedure
through
before
beginning
thejob
.
Cover
al¡
painted
surfaces
before
beginning
the
removal
procedure
.
As
an
aid
to
installation,
label
all
components,
wires,
and
hoses
before
removing
them
.
Do
not
reuse
gas-
kets,
O-rings
or
seals
during
reassembly
.
WARNING
-
Due
to
risk
of
personal
injury,
be
sure
the
engine
is
cold
before
beginning
the
removalprocedure
.
CYLINDER
HEAD
REMOVAL
AND
INSTALLATION
113-1
General
Coolingsystem,
draining
Cylinder
head
cover,
removing
Intake
manifold,
removing
Timing
chains,
uncoupling
Cylinder
head
assembly,
removing
WARNING
-
Allow
engine
to
cool
before
beginning
this
proce-
dure
.
General
1
.
Disconnect
negative
(-)
cable
from
battery
.
CAUTION
-
"
Prior
to
disconnectiog
the
battery,
read
the
bat-
tery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
viii
.
"
Disconnecting
the
battery
may
erase
fault
codees)
stored
in
control
module
memory
.
Check
for
fault
codes
using
special
BMW
diagnostic
equipment
.
NOTE-
The
battery
is
mounted
in
the
luggage
compartment
behind
the
right
side
trim
panel
.
2
.
Working
underneath
vehicle,
remove
front
exhaust
pipe
from
exhaust
manifold
.
See
Fig
.
1
.
3
.
Disconnect
vacuum
hose
fitting
from
brake
booster
on
rear
bulkhead
.
Plug
opening
in
booster
and
hose
end
.
CYLINDER
HEAD,
4-CYLINDER
Page 68 of 759
113-2
CYLINDER
HEAD
REMOVAL
AND
INSTALLATION
0011s6i
-
0Fig
.
1
.
Front
exhaust
pipe
to
exhaust
manifold
mountíng
nuts
(arrows)
.
-1
~~
0013023
4
.
Remove
air
filter
housing
complete
with
mass
air
flow
Fig
.
3
.
Coolant
hose
connection
beneath
intake
manifold
on
M42
sensor
and
attached
hoses
and
ducting
.
See
Fig
.
2
.
engine
(arrow)
.
0011969
Fig
.
2
.
Air
filter
housing/air
intake
connections
on
M44
engine
with
traction
control
.
Clamp
atthrottle
housing
(A)
;
mass
air
flow
sensor
connector
(B)
;
and
clips
at
upper
air
filter
housing
(C)
.
Coolingsystem,
draining
5
.
Draincoolant
from
engine
block
and
radiator
.
See
170
Radiator
and
Cooling
System
.
NOTE-
"
The
block
drain
is
on
the
exhaust
sideof
the
engine,
near
cylinder
no
.
4
.
6
.
Disconnect
hoses
from
coolant
flange/thermostat
hous-
ing
on
frontof
cylinder
head
.
Unbolt
thermostat
housing
from
cylinder
head
.
CYLINDER
HEAD,
4-CYLINDER
7
.
On
M42
engines,
disconnect
hose
from
coolant
pipe
on
left
side
of
engine
.
See
Fig
.
3
.
8
.
Disconnect
heater
hoses
from
coolant
flange
on
rear
of
cylinder
head
.
Cylinder
head
cover,
removing
9
.
Remove
ignition
coil
pack
from
rightstrut
tower
.
See
Fig
.
4
.
0011995
"
The
radiator
drain
plug
is
on
the
bottomof
the
radiator
Fig
.
4
.
Cylinder
head
cover
showing
location
of
engine
breather
hose
on
the
driver's
side
.
Remove
small
plastic
lock
clipto
(A),
wiring
harness
duct
(B),
and
ignition
coil
pack
(C)
.
M44
pull
radiator
drain
plug
out
completely
.
engine
shown
.
Cover
on
M42
engine
is
similar
.
10
.
Disconnect
engine
breather
hose
from
cylinder
head
cover
.
Page 98 of 759
117-2
CAMSHAFT
TIMING
CHAIN
CAMSHAFT
TIMING
CHAIN,
4-CYLINDER
Special
BMW
service
tools
are
needed
for
timing
chain
re-
moval
and
installation
procedures
.
The
special
tools
assure
proper
timing
of
the
valvetrain
.
Precíse
marks
to
setthe
timing
on
the
camshafts
are
not
provided
for
reassembly
.
Read
the
procedures
through
before
beginning
the
job
.
CAUTION-
lf
the
camshaftsare
not
properly
timed,
the
pis-
tons
can
contact
thevalves
.
Camshaft
timing
chain,
removing
(4-cylinder
engines)
U0119-
Fig
.
3
.
Upper
timing
chain
covermounting
bolts(arrows)
.
Thermo-
1
.
Disconnect
negative
(-)cablefrom
battery
.
stat
housing
shown
removed
.
Cylinder
ídentification
sensor
(A)
also
shown
.
CAUTION-
Prior
to
disconnecting
the
battery,
read
the
battery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
viii
.
2
.
Drain
engine
coolant
.
Drain
engine
block
byremoving
block
drain
.
Remove
radiator
cooling
fan
shroud
and
cooling
fan
.
See
170
Radiator
and
Cooling
System
..
WARNING
-
Allow
the
engine
to
cool
before
openingor
draining
the
cooling
system
.
CA
UTION-
On
cars
with
viscous-type
fan
clutch,
fan
has
left
hand
threads
.
NOTE-
The
block
drain
plug
is
located
on
the
exhaust
sideof
the
engine,
below
cylinder
no
.
4
.
3
.
Remove
cylinder
head
cover
.
See
113
Cylinder
HeadRemoval
and
Installation
.
NOTE-
Make
note
of
the
arrangement
of
the
rubber
insulators
when
removing
the
cylinder
head
cover
mounting
belts
.
4
.
Loosen
sparkplugs
.
See
120
Ignition
System
.
5
.
Disconnect
coolant
hoses
from
thermostat
housingon
front
of
cylinder
head
.
Unbolt
thermostat
housing
from
cylinder
head
.
6
.
Remove
cylinder
identification
sensor
from
upper
tim-
ing
chain
cover
.
Remove
upper
timing
chain
cover
.
See
Fig
.
3
.
CAMSHAFT
TIMING
CHAIN,
4-CYLINDER
7
.
Set
engine
to
approximate
TDC
by
rotating
in
normal
operating
direction
until
camshaft
lobes
at
cylinder
no
.
1
are
facing
up
and
toward
each
other
.
See
Fig
.
4
.
0011998
Fig
.
4
.
Engine
set
to
approximate
TDC
.
Cylinder
no
.
1
camshaft
lobes
face
in
and
sprocket
arrows
point
up
(arrows)
.
8
.
Remove
air
conditioning
drive
belt
.
Loosenand
push
aside
air
conditioning
compressor
.
Remove
air
condi-
tioning
compressor
mounting
bracket
.
See
640
Heat-
ing
and
Air
Conditioning
.
9
.
Remove
engine
drive
belts
and
coolant
pump
pulley
.
See
020
Maintenance
Program
.
10
.
Secure
crankshaft
vibration
damper
to
prevent
crank-
shaft
from
turning
.
Using
a
socket,
loosen
vibration
damper
hub
center
bolt
.
Page 102 of 759
117-
6
CAMSHAFT
TIMING
CHAIN
15
.
Insta¡¡
upper
timing
chaincover
:
17
.
Remove
crankshaft
locking
tool
from
transmission
bell-
"
Thoroughly
clean
profile
gasketgroove
and
all
sealing
housing
and
camshaft
locking
tool
from
rear
of
cylinder
surfaces
.
head
.
"
Applya
small
bead
ofsilicon
sealer
(3-Bond
1209®
or
equivalent)
to
upper
and
lower
joint
comers
where
18
.
Turn
engine
over
by
hand
in
direction
of
rotation
at
least
chaincover
meets
cylinder
head
.
two
full
rotations
.
Reinstall
camshaft
and
crankshaft
"
Insta¡¡
new
profile
gasket
to
groove
in
lowerchain
cover
.
locking
tools
to
check
engine
timing
.
Repeat
cam
timing
"
Protect
top
of
profile
gasket
using
thin
sheetmetal
procedure
if
tools
do
not
fit
easily
into
position
.
Remove
(BMW
special
tool
no
.
11
2
330
or
equivalent)
.
See
locking
tools
.
Fig
.
15
.
"
Attach
new
gaskets
to
cover
with
light
dabs
of
gasket
19
.
Install
cylinder
head
cover
as
described
in
113
Cylin-
sealant,
hold
gaskets
in
placeusing
cover
mounting
der
HeadRemoval
and
Installation
.
screws
.
"
Place
upper
timing
cover
into
position
.
Snug
down
al¡
NOTE-
screws,
without
tightening
.
Carefully
slide
out
sheet
OnM44
engines,
note
oil
supply
O-ring
and
replace
ff
metal
.
necessary
.
"
Temporarily
install
cylinder
head
cover
without
gasket
.
Insta¡¡
and
tighten
at
least
two
cylinder
head
cover
mounting
bolts
to
seat
upper
timing
chaincover
.
"
Tighten
all
upper
timing
cover
screws
.
Tightening
Torque
"
Remove
valve
cover
.
"
Cylinder
head
cover
to
cylinder
head
(M6
screws)
...
..
.
.
10
Nm
(89
ín-Ib)
-
CAMSHAFT
TIMING
CHAINS,
Fig
.
15
.
When
installing
upper
timing
chain
cover,
use
thin
sheetmetal
6-CYLINDER
(arrow)
to
protect
profile
gasket
when
installing
uppercover
.
Tightening
Torque
"
Upper
timing
chaincover
to
engine
block
or
cylinder
head
(M6
screws)
....
.
..
10
Nm
(89
in-lb)
16
.
Install
vibration
damper
while
aligning
woodruff
key
.
Hold
crankshaft
stationary
and
tighten
mounting
bolt
.
Tightening
Torques
I
CAUTION-
"
Pulley
to
vibration
damper
..
.
.
.
....
22
Nm
(17
ft-Ib)
lf
the
camshaftsare
not
properly
timed,
the
1
pis-
tons
can
contact
thevalves
.
"
Vibration
damper
tocrankshaft
M16
stretch
bolt
(always
replace)
.
330
Nm
(244
ft-Ib)
CAMSHAFT
TIMINGCHAINS,
6-CYLINDER
20
.
Installation
of
remaining
parts
is
reverse
of
removal
.
When
installing
thermostat,
make
sure
arrow
or
vent
hole
faces
up
.
Refill
cooling
system
as
described
in
170
Radiator
and
Cooling
System
.
Tighteníng
Torques
"
Coolant
drain
plug
to
cylinder
block
.
..
.
.
.
...
.
..
.....
25
Nm
(18
ft-Ib)
"
Radiator
cooling
fan
to
coolant
pump
.
..
.
...
...
..
.....
40
Nm
(30
ft-Ib)
"
Radiator
drain
screw
to
radiator
....
2
.5
Nm
(22
in-lb)
Camshaft
timing
chainremovalon
6-cylinder
engines
re-
quires
that
you
Rmove
the
engine
oil
pan
by
raising
the
en-
gine
and/or
lowering
the
front
suspension
crossmember
.
Special
BMW
service
tools
are
needed
for
timing
chain
re-
moval
and
installation
procedures
.
The
special
tools
assure
proper
timing
of
the
valvetrain
.
Precise
marks
to
setthe
timing
on
the
camshafts
arenot
provided
for
reassembly
.
Read
the
procedures
through
before
beginning
thejob
.
Page 103 of 759
Camshaft
timing
chains,
removing
(6-cylinder
engines)
1
.
Disconnect
negative
(-)
cable
from
battery
.
CA
UTION-
Disconnecting
the
battery
may
erase
fault
codes)
stored
in
control
module
memory
.
Check
for
fault
codes
using
special
BMW
diagnostic
equipment
.
2
.
Drain
engine
coolant
.
Drain
engine
block
by
removing
block
drain
.
Remove
radiator
cooling
fan
shroud
and
cooling
fan
.
See170
Radiator
and
Cooling
System
.
.
WARNING
-
Allow
the
engine
to
cool
before
openingor
draining
the
system
.
CAUTION-
Radiator
fan
has
left
hand
threads
.
NOTE-
The
block
drain
plug
is
located
on
the
exhaust
side
of
the
engine,
below
cylinder
no
.
4
.
3
.
Drain
engine
oíl
andremove
oil
pan
.
See
119
Lubrica-
tion
System
.
4
.
Remove
alternator
cooling
duct
.
5
.
Remove
two
large
coolant
hoses
from
thermostat
housing
.
Remove
engine
lifting
bracket
and
thermostat
housing
from
front
of
cylinder
head
.
6
.
Loosen
bolts
for
coolant
pump
pulley
.
Then
remove
drive
belts
for
alternator
andA/C
compressor
.
See
020
Maintenance
Program
.
Remove
coolant
pump
pulley
.
Fig
.
16
.
NOTE-
OnM50
engines
with
a
two-roller
drive
belt
tensioner,
remove
the
upper
rollerto
access
thetensioner
mount-
ing
bolts
.
NOTE-
Make
note
of
the
arrangement
of
the
rubber
insulators
when
removing
the
cylinder
head
cover
mounting
bolts
.
CAMSHAFT
TIMING
CHAIN
117-
7
Fig
.
16
.
Drive
belt
tensioner
mounting
bolts
(arrows)
.
B11055
7
.
Remove
drive
belt
tensioner
from
front
of
engine
.
See
Fig
.
17
.
1992-1995
M50
engine
speed
sensor
on
timing
cover
(ar-
row)
.
10
.
Unclip
andremove
baffle
cover
from
above
intake
cam-
shaft
.
See
Fig
.
18
.
11
.
On
1992
engines
:
Remove
upper
timing
chain
cover
from
front
of
cylinder
head
.
See
Fig
.
19
.
8
.
Remove
engine
speed
sensor
from
lower
timing
chain
12
.
Loosen
spark
plugs
.
See
120
Ignition
System
.
cover,
if
applicable
.
See
Fig
.
17
.
13
.
Set
engine
to
approximate
TDC
by
rotating
in
normal
9
.
Remove
cylinder
head
cover
.
See
113
Cylinder
Head
operating
direction
until
camshaft
lobes
at
cylinder
no
.
Removal
and
Installatíon
.
1
are
facing
each
other
.
See
Fig
.
20
.
14
.
Set
engine
to
TDC
by
aligning
"0/T'
mark
(0°TDC)on
front
vibration
damper
with
cast
bosson
lower
timing
chain
cover
.
See
Fig
.
21
.
15
.
Remove
vibration
damper
mounting
bolts
and
remove
vibration
damper
and
pulley
.
See
Fig
.
22
.
CAMSHAFT
TIMING
CHAINS,
6-CYLINDER