9
.
Release
blower
motor
retaining
strap
andremove
blow-
er
motor
and
fans
fromcowl
opening
.
NOTE-
Twist
and
rotate
blowermotor
assembly
to
facilítate
re-
moval
from
opening
.
If
the
blower
motor
is
to
be
rein-stafled,
use
care
not
to
damage
fan
wheels
during
removal
.
ff
the
blower
motor
fs
to
be
replaced,
cut
offfan
wheels
at
center
to
aid
in
removal
.
10
.
Installation
is
reverse
of
removal
.
When
installing
a
re-
placement
blower
motor,
instan
motor
into
cowlarea
before
installing
fan
wheels
.
Blower
motor
test
specifi-
cations
are
listed
in
Table
a
.
NOTE
-
On
replacementblowermotors
from
BMW,
thefan
wheels
come
unattached
to
aid
in
installation
.
Locatearrow
on
blower
motor
and
instan
fan
wheels
atthis
po-
sition
.
Be
sure
color
coolng
matches
.
Retain
fan
wheels
using
the
new
clips
.
See
an
authorized
BMW
parts
de-
partment
for
the
latest
parts
information
.
Table
a
.
Blower
Motor
Test
Values
Testingvoltage
13
VDC
Operating
voltage
9-15
VDC
Max
.
current
consumption
(approx
.)
12
amps
Maximum
speed
3,600-4,000rpm
Axialplay
(max
.
allowable)
1
.0
mm
(0
.04
in
.)
Blower
motor
resistor
pack,
replacing
The
blower
resistor
pack
is
clipped
into
the
upper
left
side
of
theheater
box
.
1
.
Remove
lower
left
dash
trim
panel
.
See513
Interior
Trim
.
2
.
Working
under
left
(driver's)
side
of
dash,
unclip
and
pulí
out
resistor
pack
from
sideof
heater
box
.
Remove
harness
connector
from
resistor
pack
.
See
Fig
.
7
.
3
.
Installation
is
reverse
of
removal
.
Heater
valve,
replacing
The
two-way
heater
valve
is
located
in
the
rear
of
the
engine
compartment
on
the
driver
side
.
The
solenoid
operated
valves
control
the
coolant
flow
through
the
dual-chamber
heater
core
.
1
.
Drain
engine
coolant
.
See
170
Radiator
and
Cooling
System
.
HEATING
AND
AIR
CONDITIONING
640-
3
uuiGO4I
Fig
.
7
.
Blower
fan
resistor
pack
(black
arrow)
and
resistor
pack
re-
ceptacle
(white
arrow)
below
left
sideof
dash
.
WARNING
-
Allow
the
cooling
system
to
cool
before
opening
ordraining
the
cooling
system
.
2
.
Disconnect
hoses
and
harness
connector
at
heater
valve
.
See
Fig
.
8
.
001[ó38b
Fig
.
S
.
Hoses
(A)
and
harnessconnector
(B)
at
heatervalve
.
3
.
Carefully
pull
heater
valve
out
of
rubber
mounting
and
pull
up
and
out
of
engine
compartment
.
4
.
Installation
is
reverse
of
removal
.
Use
new
hose
clamps
.
Inspect
hoses
and
replace
asnecessary
.
HEATER
AND
CONTROLS
