1998 BMW 328i replace battery
[x] Cancel search: replace batteryPage 122 of 759
119-
8
LUBRICATION
SYSTEM
17
.
Installation
is
reverse
of
removal
.
"
Thoroughly
clean
all
old
gasket
material
from
mating
surtaces
anduse
a
new
gasket
.
"
Applya
small
amount
of
non-hardening
sealer
(3-Bond
1209
0
or
equivalent)
to
oil
pan
gasket
directly
below
joints
for
and
cover
and
front
timing
case
cover
.
See
Fig
.
12
.
"
Tighten
oil
pan
bolts
starting
at
front
first,
working
to-
wardback
(transmission)
end
.
"
Fill
engine
with
oil
as
described
in
020
Maintenance
Program
.
"
After
addingengine
oil,
start
and
run
engine
.
Raiseen-
gine
speed
to
2,500
rpm
until
oíl
pressure
warning
lampgoes
out
(about
5seconds)
.
OIL
PUMP
applied
(arrows)
.
Apply
a
bead
3
mm
wideby
2
mm
high
.
WARNING
-
"
Always
use
new
bolts
when
mounting
the
sub-
frame
to
the
body
.
The
one-time
only
bolts
should
be
replaced
any
timethey
are
removed
.
"
Special
installation
instructions
apply
when
in-
stalling
the
front
suspension
crossmember
to
the
body
.
See
310
Front
Suspension
for
fastener
specifications
and
tightening
torques
.
Fig
.
12
.
Joint-mating
areas
at
oil
pan
gasket
where
sealer
should
be
Center
the
steering
spindle
to
the
steering
rack
before
in-
stalling
the
steering
column
shaft
.
See
320
Steering
and
Wheel
Alignment
for
more
specific
procedures
.
Tightening
Torques
"
Control
arm
bushing
carrier
to
body
(M10
bolt)
...............
47
Nm
(35
ft-Ib)
"
Engine
mount
to
suspension
crossmember(M10
nut)
..
42
Nm
(31
ft-Ib)
"
Oil
pan
to
engine
block
(M6
bolt)
8
.8
grade
...........
.......
....
10
Nm
(89
in-lb)
10
.9
grade
...........
..
...
...
.
12
Nm
(106
in-lb)
"
Stabilizer
bar
link
to
control
arm
(M10
nut)
.......
....
42
Nm
(31
Ib-ft)
"
Steering
column
universal
joint
to
steering
rack
spindle
(M8
bolt)
....
19
Nm
(14
ft-Ib)
"
Suspensíon
crossmember
to
body
...
...
.
...
..
.
.
See
310
Front
Suspension
OIL
PUMP
Oil
pump,
removing
and
installing
(4-cylinder
engine)
Oil
pressure
on
M42
and
M44
engines
is
generatedbya
gear-type
pump
mounted
to
the
rear
of
the
front
engine
cover
(timing
chaincase)
.
The
pump
is
gear-driven
off
the
front
of
the
crankshaft
.
NOTE-
Oil
pump
removal
requires
lowering
of
the
front
sus-
pension
and
removal
of
the
oil
pan,
as
well
asremoval
of
the
timing
chain
assembly
.
1
.
Disconnect
negative
(-)
battery
cable
from
battery
.
CAUTION-
Prior
to
disconnectiog
the
battery,
read
the
battery
disconnection
cautions
given
at
the
front
of
this
manual
on
paga
vÍii
.
2
.
Drain
engine
oil
as
described
in
020
Maintenance
Pro-
gram
.
3
.
Withengine
cold,
drain
coolant
.
See
170
Radiator
and
Cooling
System
.
4
.
Remove
top
cover
from
oil
filter
housing
to
allow
engine
oil
to
drain
into
oil
pan
.
Remove
oil
pan
as
described
earlier
.
Reinstall
oil
filter
cover
.
5
.
Remove
alternator
.
Unbolt
power
steering
pump
from
bracket,
then
remove
alternator
mountíng
bracket
.
See
121
Battery,
Starter,
Alternator
.
6
.
Remove
crankshaft
vibration
damper
andhub
.
Then
re-
move
upper
and
lower
timing
chain
covers,
complete
timingchain,
chain
sprockets
and
chain
guides
.
See
117
Camshaft
Tíming
Chain
.
Page 128 of 759
120-
4
IGNITION
SYSTEM
2
.
Check
for
battery
voltage
o
cofs
.
If
voltage
is
not
Table
b
.
Ignition
Coil
Resistance
present,
check
wire
between
terminal
15
and
ignition
(M42
Engine)
switch
.
See
Electrical
Wiring
Diagrams
.
"
On
M42
engine,
connect
digital
multimeter
between
ter-
minal
15(+)
in
each
harness
connector
and
ground
.
See
Fig
.
4
.
"
On
M44
engine,
connect
voltmeter
between
terminal
2
(15+)
in
connector
and
ground
.
Turn
ignition
on
and
check
for
voltage
.
See
Fig
.
5
.
3
.
Turn
ignition
off
.
0
4a15
Fig
.
4
.
Ignition
coil
harness
connector
terminal
identification
for
M42
engine
.
Fig
.
5
.
Ignition
coil
harness
connector
terminal
identification
for
M44
engine
.
CAUTION-
The
wiring
to
the
coil(via
the
ignition
switch
15+)
is
not
fuse
protected
.
Use
care
when
testing
thiscircuit
.
4
.
Use
a
digital
multimeter
totest
coil
primary
resistance
.
"
On
M42
engine,
use
Table
b
asa
guide
to
check
coil
resistance
.
Make
checks
at
each
harness
connector
.
"
On
M44
engine,
use
Table,c
as
a
guide
to
check
coil
primary
resistance
.
5
.
Inspect
coil
housing
for
hairline
cracks
or
leaking
cast-
ing
material
.
See
Fig
.
7
.
A
leaky
ignition
coil
may
indi-
11502
cate
a
faulty
ECM
(engine
control
module)
.
Check
the
ECM
before
installing
a
new
coil
.
Fig
.
6
.
Ignition
coil
harnessconnector
terminal
identification
for
6-
cylinder
engine
.
IGNITION
SYSTEM
SERVICE
11502
Terminals
Resistance
(refer
to
Fig
.
4
.)
Coil
primary
1
(-)
and
15
(+)
10
.4-0
.8
ohms
Coil
secondary
N
.A
.
N
.A
.
Table
c
.
Ignition
Coil
Resistance
(M44
Engine)
Terminais
Resistance
(referto
Fig
.
5
.)
Coil
#1
primary
1
(-)
and
2
(+)
0
.4-0
.8
ohms
Coil
#2
primary
6
(-)
and2
(+)
0
.4-0
.8
ohms
Coil
#3
primary
7
(-)
and
2
(+)
0
.4-0
.8
ohms
Coil
#4
primary
5
(-)
and2
(+)
0
.4-0
.8
ohms
Coil
secondary
N
.A
.
N
.A
.
NOTE-
If
a
single
coilís
faulty
on
M44
engines,
the
complete
coil
pack
will
have
to
be
replaced
.
Ignition
coil,
testing
and
replacing
(6-cylinder
engine)
CAUTION-
Use
a
digital
multimeter
for
the
following
tests
.
1.
Remove
plastic
enginecovers
from
top
of
engine
by
prying
off
nut
covers
and
removingcover
mounting
nuts
.
See
113
Cylinder
HeadRemoval
and
Installa-
tion
.
2
.
Disconnect
harnessconnectorfromcof
.
Connect
mul-
timeter
between
terminal
15
(+)
in
connector
and
ground
.
See
Fig
.
6
.
3
.
Turn
ignition
on
and
check
for
batteryvoltage
.
"
If
batteryvoltage
is
not
present,
check
wire
between
terminal
15
and
ignition
switch
.
See
Electrical
Wiring
Diagrams
.
"mozo
Page 138 of 759
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
Page 140 of 759
121-
4
BATTERY,
STARTER,
ALTERNATOR
BatteryOpen-Circuit
Voltage
Test
Battery
Charging
Before
making
the
test,
load
the
battery
with
15
amperes
for
Discharged
batteries
can
be
recharged
using
a
battery
one
minute
with
a
batteryload-tester
or
turn
on
the
headlights
charger
.
The
battery
should
be
removed
from
the
luggage
for
about
one
minute
without
the
engine
running
.Then
discon-
compartment
during
charging
.
nect
the
battery
negative
(-)
cable
and
connect
a
digital
volt-
meter
acrossthe
battery
terminals
.
Open-circuit
voltage
Prolonged
charging
causes
electrolyte
evaporation
to
a
lev
levels
are
given
in
Table
c
.
el
that
can
damage
the
battery
.
Itis
bestto
use
a
low-current
charger
(6
amperes
or
less)
to
prevent
battery
damage
If
the
open-circuit
voltage
ís
OK
butthe
battery
still
lacks
caused
by
overheating
.
power
for
starting,
make
a
load
voltage
test
.
If
the
open-circuit
voltage
is
below
12
.4
volts,
recharge
the
battery
and
retest
.
WARNING
-
Hydrogen
gas
given
off
by
the
battery
duringcharg-
Table
c
.
Open-Circuit
Voltage
and
Battery
Charge
ing
is
explosive
.
Do
not
smoke
.
Keep
open
llames
away
from
the
top
of
the
battery,
and
prevent
elec
Open-circuit
voltage
State
of
charge
trical
sparks
by
turning
offthe
battery
charger
be-
12
.6
V
or
more
Fully
charged
fore
connecting
or
disconnecting
it
.
12
.4
V
1
75%
charged
12
.2
V
50%
charged
CAUTION-
12
.0
V
25%
charged
"
Battery
electrolyte
(sulfuric
acid)
can
damage
the
car
.
If
electrolyte
isspilled,
clean
the
area
11
.7
V
or
less
Fully
discharged
with
a
solution
of
baking
soda
and
water
.
Battery
Load
Voltage
Test
A
battery
load
tester
is
required
for
a
load
voltage
test
.
The
-
Always
disconnect
both
battery
cables
and
re-
test
is
made
by
applying
a
high
resistive
load
to
the
battery
ter-
move
battery
from
vehicle
during
battery
charg-
ing
.
Do
not
exceed
16
.5volts
at
the
battery
.
minals
and
then
measuring
battery
voltage
.
The
battery
should
be
fully
charged
for
the
most
accurate
results
.
The
battery
ca-
bles
mustbe
disconnected
before
making
the
test
.
If
the
volt-
ALTERNATOR
$ERVICE
age
is
below
that
listed
in
Table
d,
the
battery
should
be
replaced
.
WARNING
-
Always
wear
protective
goggles
and
clothing
when
performing
aload
test
.
Table
d
.
Battery
Load
Test-Minimum
Voltage
(apply
200
amp
load
for
15
seconds)
Ambient
temperature
Voltage
80°F
(27°C)
9
.6
V
60°F
(16°C)
9
.5
V
40°F
(4°C)
9
.3
V
20°F
(-7°C)
8
.9
V
0°F
(-18°C)
8
.5
V
ALTERNATOR
SERVICE
"
Always
allow
a
frozen
battery
to
thaw
before
at-
tempting
to
recharge
it
.
Before
checking
the
alternator
and
regulator,
make
sure
the
battery
is
fully
charged
and
capable
of
holding
acharge
.
Check
that
the
battery
terminals
are
clean
and
tight
and
the
al-
ternator
drive
belt
is
properly
tensioned
and
not
severely
worn
.
Charging
system,
checking
CAUTION-
Do
not
disconnect
the
battery
while
the
engine
is
running,
.
Damage
to
the
alternator
andlorengine
electronic
systems
may
result
.
1.
Turn
ignition
key
on
.
Check
that
the
chargewarning
lamp
comes
on
.
NOTE-
If
the
warning
light
does
not
come
on,
repair
any
wiring
or
bulb
faults
before
continuing
to
check
the
charging
system
.
Page 141 of 759
2
.
Remove
cooling
duct
or
terminal
cover
from
rear
of
al-
2
.
Remove
air
cleaner
upper
section
with
mass
air
flow
ternator
.
sensor
.
3
.
Check
for
battery
voltage
between
ground
and
terminal
3
.
Remove
terminal
cover
from
rear
of
alternator
.
Discon
B+
at
back
of
alternator
.
Then
turn
ignition
on
and
nect
wiring
.
check
for
battery
voltage
between
terminal
D+
and
ground
.
See
Fig
.
3
.
lf
voltage
is
not
present
at
either
4
.
Remove
drive
belt
from
alternator
pulley
.
See
020
point,
check
wiring
for
faults
.
Maintenance
program
.
001
¡987
Fig
.
3
.
Terminal
B+
is
supplied
battery
voltage
directly
from
the
bat-
tery
.
Terminal
D+
is
supplied
battery
voltage
via
the
charge
warning
bulb
when
thekey
is
on
or
the
engine
is
running
.
4
.
lf
no
faults
are
foundup
to
thispoint,test
alternator
out-
put
using
a
load
tester
.
5
.
If
a
load
tester
is
not
available,
a
crude
output
test
can
be
done
by
running
engine
at
about
2000
rpmand
turn-
ing
on
electrical
loads
(fans,
lights
and
rear
window
de-
froster,
wipers)
.
With
al¡
accessories
on,
battery
voltage
should
be
above
12
.0
VDC
.
A
replacement
alternator
should
have
the
same
rating
as
the
original
.
Alternator
manufacturer
and
ampere
rating
are
normally
marked
on
the
alternator
housing
.
1
.
Disconnect
negative
(-)
battery
cable
.
CAUTION-
Prior
to
disconnecting
the
battery,
read
the
battery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
vi¡¡
.
BATTERY,
STARTER,
ALTERNATOR
121-
5
6
.
Remove
upper
and
lower
mounting
bolts
and
lift
out
al-
ternator
.
See
Fig
.
4
.
NOTE
-
If
reusing
drive
belt,
mark
direction
of
rotation
on
belt
before
removing
.
5
.
On
M44
engine
with
hydraulic
belt
tensioner
:
Remove
tensioner
idler
pulley
(upper
roller)
from
alternator
bracket
.
Fig
.
4
.
Alternator
mounting
bolts
(arrows)
.
O
u
J
S
v~~
U
I
1
i
n
-12
.22
Alternator,
removing
and
installing
7
.
Installation
is
reverse
of
removal
.
Install
drive
belt
as
(4-cylinder
engine)
described
in
020
Maintenance
Program
.
Tightening
Torques
"
D+
vire
to
alternator
(M6
nut)
.
...
.
.
.
7
Nm
(53
in-lb)
"
B+
wire
to
alternator
(M8
nut)
..
.
.
.
.
.
13
Nm
(10
ft-Ib)
"
Pulley
to
alternator
(M16
nut)
...
..
..
60
Nm
(44
ft-Ib)
ALTERNATOR
SERVICE
Page 142 of 759
121-
6
BATTERY
STARTER,
ALTERNATOR
Alternator,
removing
and
installing
(6-cylinder
engine)
A
replacement
alternator
should
have
the
same
rating
as
the
original
.
Alternator
manufacturer
and
ampere
rating
are
normally
marked
on
the
alternator
housing
.
1
.
Disconnect
negative
(-)
battery
cable
.
CAUTION-
Prior
to
disconnectiog
the
battery,
read
the
battery
disconnection
cautions
given
at
the
front
of
this
manual
onpage
viii
.
2
.
Remove
alternator
cooling
duct
and
air
filter
housing
assembly
from
car
.
Disconnect
wiring
from
rear
of
alter-
nator
.
3
.
Remove
radiator
cooling
fan
and
fan
shroud
.
See
170
Radiator
and
Cooling
System
.
4
.
Remove
alternator
drive
belt
from
alternator
pulley
.
On
engines
with
hydraulic
belt
tensioner,
remove
tensioner
idler
pulley
(upper
roller)
from
alternator
bracket
.
See
Fig
.
5
.
ALTERNATOR
SERVICE
Fig
.
5
.
Pry
off
cover
from
tensioner
and
then
lever
tensioner
clock-
wise
to
release
belt
tension
.
Remove
upper
roller
(A)
once
belt
ís
removed
.
NOTE-
If
reusing
drive
belt,
mark
direction
of
rotation
on
belt
before
removing
.
5
.
Remove
upper
and
lower
mounting
bolts
and
lift
out
al-
ternator
.
6
.
Installation
is
reverse
of
removal
.
Note
locating
notches
on
tensioner
idler
pulley
(upper
roller)
alternator
brack-
et
when
installing
pulley
.
Tightening
Torques
"
D+
wire
to
alternator
(M6
nut)
.......
7
Nm
(53
in-lb)
"
B+
wireto
alternator
(M8
nut)
.......
13
Nm
(10
ft-Ib)
"
Pulley
to
alternator
(M16
nut)
.......
60
Nm
(44
ft-Ib)
Voltage
regulator,
removing
and
installing
1
.
Disconnect
negative
(-)
cable
from
battery
.
NOTE-
2
.
Remove
alternator
as
described
earlier
.
The
radiator
cooling
fan
nut
(32
mm
wrench)has
left-
hand
threads
.
3
.
Remove
cooling
duct
from
rear
of
alternator
.
See
Fig
.
6
.
Alternator
.
.g-
p~
J
-..
.
Fig
.
6
.
Alternator
assemblyand
related
parts
.
Cooling
duct
0012524
4
.
Remove
voltage
regulator
mounting
screws
and
re-
move
regulator
from
alternator
.
5
.
Installation
is
reverse
of
removal
.
Clean
brush
contact
surfaces
in
alternator
and
check
brush
length
asde-
scribed
later
.
Page 143 of 759
Alternator
brushes,
STARTER
SERVICE
inspecting
and
replacing
Regulator
brushesarenot
available
as
replacement
parts
from
BMW
.
Replacement
brushes
may
be
available
from
af-
termarket
sources,
however
.
1
.
Remove
voltage
regulator
as
described
above
.
2
.
Clean
brush
contact
sürfaces
and
measure
brush
pro-trusion
.
See
Fig
.
7
.
Check
for
battery
voltage
at
terminal
50
of
the
starter
motor
Fig
.
7
.
Regulator
brush
protrusion
(A)
.
with
the
key
in
the
start
position
.
See
Fig
.
8
.
If
voltage
is
not
present,
check
the
wiring
between
the
ignition
switch
and
the
starter
terminal
.
If
voltage
is
present
and
no
other
visible
wir
Voltage
Regulator
ing
faults
can
be
found,
the
problem
is
most
likely
interna¡in
"
Brush
protrusion
(minimum)
.......
.
..
5
mm
(
1
/4
in
.)
the
starter
motor
.
3
.
To
replace
brushes,
carefully
and
as
quickly
as
possi-
ble,
unsolder
brush
lead
from
brush
holder
termina¡,
withdrawing
brush
from
holder
at
same
time
.
4
.
Remove
any
traces
of
solder
frombrush
holder
termi-
nal
using
solder
wick
.
5
.
Fit
spring
into
brush
holder
and
inserí
new
brush
.
6
.
Guide
brush
lead
into
terminal
and
solder
into
place
.
Check
for
free
movement
of
brushes
when
solder
cools
.
7
.
Check
brush
slip
rings
in
alternator
for
wear
.
Lightly
clean
slip
rings
using
fine
abrasive
cloth
.
BATTERY,
STARTER,
ALTERNATOR
121-
7
Starter
Troubleshooting
If
the
starter
tucos
the
engine
slowlyor
fails
to
operate
when
the
ignition
isin
the
start
position,
check
the
battery
first
.
In-
spect
the
starter
wires,
terminals,
and
ground
connections
for
good
contact
.
In
particular,
make
sure
the
ground
connections
between
the
battery,
the
body
and
the
engine
are
completely
clean
and
tight
.
If
no
faults
can
be
found,
the
starter
may
be
faulty
and
should
be
replaced
.
NOTE
-
"
Starting
in1194,
a
factory-installed
drive-away
protec-
tion
system,
alsoreferred
to
as
EWS
or
EWS
11,
was
used
on
all
E36
cars
.
This
system
prevenís
operation
of
the
starter
when
the
system
is
engaged
.
See
515
Central
Locking
and
Anti-theft
.
"
On
cars
with
automatic
transmission,
a
starter
relay
and
a
neutral
safetyswitchare
used
to
present
theen-
ginefrom
starting
in
gear
positions
other
than
park
or
neutral
.
ff
voltage
is
not
present
atterminal
50
with
the
key
in
the
startposition,
check
these
components
To
make
the
most
accurate
check
of
the
battery
cables
and
starterwiring,
make
a
voltage
drop
test
on
the
cables
and
wir-
ing
as
described
in
600
Electrical
System-General
.
Terminal
30
'
\
/
Terminal
30h
0012518
8
.
Reinstall
regulator
and
alternator
.
Fig
.
8
.
Typical
starterwiring
terminal
identification
.
Large
wireat
ter-
minal
30
is
direct
battery
voltage
.
Smaller
wire
at
terminal
50
operates
starter
solenoid
via
ignition
switch
.
STARTER
SERVICE
Page 153 of 759
ELECTRICAL
CHECKS
AND
COMPONENT
TESTING
Main
relay,
testing
The
main
relay
is
energized
via
the
engine
control
module
and
supplies
plus
(+)
power
to
the
many
of
the
engine
man-
agement
components
and
subsystems,
including
the
fuel
pump
relay
.
If
this
relay
is
faulty,
the
engine
will
not
start
.
1
.
With
ignition
off,
remove
main
relay
.
See
Fig
.
6
.
.
iommooommmoi
~
"""
Fuel
DME
sensor
CA
UTION-
Relay
positions
can
vary
.
Be
sure
to
confirm
relay
position
by
identífyíng
the
wiring
in
the
socket
us-
ingthe
wiring
diagramsfound
at
the
rearof
this
manual
.
0013034)
Fuel
pump
relay,
testing
FUEL
INJECTION
130-
7
87
851186
30
~j
1
.
Remove
fuel
pump
relay
from
its
socket
.
87661
Fig
.
7
.
Check
for
battery
voltage
at
main
relay
terminals
30
and
86
.
Voltage
should
be
present
at
all
times
.
4
.
With
ignition
on
and
relay
installed,
check
for
battery
voltage
at
terminals
87
.
"
If
battery
voltage
is
present,relay
has
energized
and
is
functioningcorrectly
.
"
lf
battery
voltage
is
not
present
and
al¡
earlier
tests
are
OK,
relay
is
faulty
and
should
be
replaced
.
Fig
.
6
.
Engine
management
relays
in
the
power
distribution
box,
left
rear
of
engine
compartment
.
The
fuel
pump
relay
is
located
in
the
power
distribution
box
.
Refer
to
Fig
.
6
.
The
ECM
supplies
power
to
the
coil
side
of
the
fuel
pump
re-
lay
.
During
starting,
the
fuel
pump
runs
as
long
as
the
ignition
switch
isin
the
start
position
and
continues
to
run
once
theen-
gine
starts
.
If
the
relay
ís
faulty
the
fuel
pump
will
notrun
.
2
.
Check
for
voltage
at
terminal
30
and
terminal
86
of
re-
¡ay
socket
.
See
Fig
.
7
.
2
.
With
key
off,
check
for
batteryvoltage
at
socket
terminal
"
If
battery
voltage
is
present
continue
testing
30
.
See
Fig
.
8
.
"
lf
battery
voltage
is
not
present
at
either
point,
check
large
red
wire
in
relay
socket
.
See
Electrical
Wiring
3
.
With
ignition
key
in
start
position
check
for
battery
volt-
Diagrams
.
age
at
terminal
86
.
NOTE-
4
.
With
ignition
key,
use
digital
multimeter
to
check
for
The
wiring
to
terminals
85
and
86
in
the
main
relay
may
ground
at
terminal
85
.
be
reversed
.
Electrically,
the
relay
functions
either
way
.
lf
voltage
ís
not
present
at
terminal
86,
check
for
volt-
NOTE-
age
at
terminal
85
.
The
ground
atterminal
85
is
switched
by
the
ECM
.
The
ECM
hamess
must
be
connected
to
check
the
3
.
Reinstall
relay
and
turn
ignition
on
.
Gainaccess
to
un-
switched
ground
connection
.
derside
of
relay
socket
and
check
for
ground
at
terminal
85
(brown
wire)
.
5
.
If
no
faults
are
found
up
tothis
point,
testfuel
pump
op-
"
lf
ground
is
present
continue
testing
.
eration
as
described
in
160
Fuel
Tank
and
Fuel
Pump
.
"
If
ground
is
not
present,
signal
from
ECM
is
missing
.
Check
wire
between
ECM
and
relay
.
If
no
faults
can
be
found,
ECM
may
be
faulty
.
ELECTRICAL
CHECKS
AND
COMPONENT
TESTING