Brake
rotor,
removing
and
installing
Brake
rotors
shouldalways
be
replaced
in
pairs
.
Fig
.
9
.
Brake
rotor
mounting
screw
(arrow)
.
3
.
Inspect
rotor
for
excessive
grooving,
cracks,
and
warp-
ing
.
Check
rotor
thickness
.
See
Table
b
.
4
.
Installation
is
reverse
of
removal
.
"
Clean
rotor
with
brakecleaner
before
installing
.
"
If
brake
fluid
hose
veas
removed
or
loosened,
brake
systemmustbe
bled
as
described
aboveunder
Bleeding
Brakes
.
BRAKES
340-
7
5
.
Once
brake
assembly
is
instalind,
depress
brakepedal
several
times
to
adjust
caliper
and
pads
.
"
Pedal
should
feel
firm
and
be
at
proper
height
.
"
Check
fluid
leve¡
.
Top
up
if
necessary
.
NOTE-
M3
models
use
directional
brake
rotors
and
mustbe
in-
NOTE-
stalled
on
the
proper
side
.
Part
numbes
are
cast
finto
When
installing
new
rear
brake
rotors,
the
parking
therotors
.
A
part
that
ends
in
an
odd
number
is
a
left
brakeshouldbe
adjusted
.
See
Parking
Brake
.
rotor
.
One
that
ends
in
an
even
number
is
a
right
rotor
.
1.
Remove
caliper
as
described-above
and
hang
from
Tightening
Torques
chassis
using
stiff
wire
.
"
Brake
rotor
to
wheel
hub
..........
16
Nm
(12
ft-Ib)
"
Front
brake
caliper
to
steering
arm
...
110
Nm
(81
ft-Ib)
NOTE-
"
Rear
brake
caliper
to
traíling
arm
....
67
Nm
(50
ft-Ib)
Do
notloosen
caliper
brake
hose
.
"
Road
wheel
to
hub
...
..
.
100
±
10
Nm
(74
t
7
ft-Ib)
2
.
Remove
mountingscrew
holding
rotor
to
wheel
hub
.
,
See
Fig
.
9
.
Table
b
.
Brake
Rotor
Reconditioning
Specificati*M`
Front
Rear
Vented
rotor
wear
limit
(min
.
thickness)
20
.4
mm
(0
.803
in.)
Solid
rotor
wear
limit
(min
.
thickness)
8
.4
mm
(0.331
in
.)
M3
models
wear
limit
(min
.
thickness)
26
.4mm
(0
.977
in
.)
18
.4
mm
(0
.723
in
.)
Axial
runout
(max
.)
rotor
removed
0
.05
mm
(0
.002
in
.)
0
.05
mm
(0
.002
in
.)
rotor
installed
0
.20
mm
(0
.008
in
.)
0
.20
mm
(0
.008
in
.)
CAUTION-
M3
brake
rotors
must
not
be
machined
.
MASTER
CYLINDER
The
brake
master
cylinder
is
mounted
to
the
front
of
the
vac-
uum
booster
on
the
driver
side
bulkhead
.
Master
cylinder,
removing
and
installing
1
.
Using
a
clean
syringe,
empty
brake
fluid
reservoir
.
WARNING
-
Brake
fluid
is
highly
corrosive
and
dangerous
to
the
environment
.
Dispose
of
it
properly
.
NOTE-
On
original
equipment
rotors,
the
mínimum
allowable
2
.
Disconnect
brake
fluid
leve¡
sender
connector
from
fluid
thickness
is
stamped
on
the
rotor
hub
.
Measure
the
rotor
reservoi
r
cap
.
brakingsurface
with
a
micrometer
at
eight
to
ten
different
points
and
use
the
smallest
measurement
recorded
.
3
.
Disconnect
brake
fluid
lines
frommaster
cylinder
.
See
Fig
.
10
.
Disconnect
hydraulic
clutch
system
supply
line
.
4
.
Unscrew
mounting
nuts
and
remove
master
cylinder
from
brake
booster
.
5
.
Make
sure
all
nuts,
fluid
couplings,
thread
bores,
and
mating
surfaces
are
clean
.
MASTER
CYLINDER
340-
8
BRAKES
Fig
.
10
.
Brake
fluid
linesat
master
cylinder
(arrows)
.
6
.
If
fluid
reservoir
was
removed,
install
it
carefully
using
new
sealing
grommets
.
7
.
Mount
master
cylinder
to
brake
booster
using
a
new
0-
ring
and
new
self-locking
nuts
.
CAUTION-
Use
cave
not
to
over-torque
the
master
cylinder
mounting
nuts
.
This
could
damage
the
brake
booster
and
prevent
proper
vacuum
build-up
.
0012164
8
.
Connect
all
brake
fluid
lines
.
Connect
hydraulic
clutch
hose
to
brake
fluid
reservoir
.
9
.
Reconnect
fluid
leve¡
sender,
and
bleed
entire
brake
systemas
described
earlier
.
BRAKE
BOOSTER
BRAKE
BOOSTER
The
brake
booster
is
mounted
to
the
bulkhead
on
the
driver
sideofthe
engine
compartment,
directly
behind
the
brake
master
cylinder
.
See
Fig
.
11
.
0015225
Fig
.
11
.
Brake
booster
(arrow)
.
A
is
vacuum
hose
from
intake
mani-
fold
.
B
is
one-way
valve
.
Intake
manifold
vacuum
acts
ona
large
diaphragm
in
the
brake
booster
to
reducebrake
pedal
effort
.
Brake
booster,
removing
and
installing
1
.
Disconnect
negative
(-)
cable
from
battery
.
CAUTION-
Prior
to
disconnecting
the
battery,
read
the
battery
disconnection
cautions
given
at
the
front
of
this
manual
onpage
vi¡¡
.
Tightening
Torque
"
Brake
master
cylinder
to
2
.
Using
a
clean
syringe,
empty
brake
(luid
reservoir
.
brake
booster
.....
..
.
..
.........
26
Nm
(18
ft-Ib)
WARNING-
"
Brake
fluid
hose
to
caliper
....
17-19
Nm
(13-14
ft-Ib)
Brake
fluid
is
highly
corroslve
and
dangerous
to
the
environment
.
Dispose
of
it
properly
.
3
.
Remove
brake
fluid
level
sender
connector
from
reser-
voir
cap
.
4
.
Disconnectbrake
fluid
lines
from
master
cylinder
.
Plug
openings
.
5
.
Disconnect
engine
vacuum
hose
from
brake
booster
.
6
.
Disconnect
ABS
electrical
connectors
.
Label
and
then
disconnect
brake
lines
from
hydraulic
brake
unit
.
Plug
openíngs
.
See
Fig
.
12
.
~
~
A
1/
B
'1v
C
~
F
lu
11
-ri
J
.
0013244
A
.
Right
front
F
Front
from
master
cylinder
B
.
Leftfront
R
.
Rear
from
master
cylinder
C
.
Rear
Fig
.
12
.
Brake
fluid
linesat
ABS
hydraulic
unit
.
WARNING
-
"
On
cars
with
All
Season
Traction
(AST),
special
BMW
service
equipment
is
required
to
properly
bleed
the
Antilock
Brake
System
(ABS)
.
Removal
of
the
ABS
hydraulic
unit
is
not
recommended
un-
less
this
equipment
is
available
.
For
safetyrea-
sons,
the
brake
system
on
cars
with
ABS
must
not
be
bled
using
the
procedures
described
inthis
repair
group
.
"
Do
not
mix
up
the
fluid
fines
at
the
ABS
hydraulic
unit
Label
all
connections
before
disconnecting
.
7
.
Remove
ABS
hydraulic
unit
from
engine
compartment
.
8
.
Working
inside
car,
remove
panel(s)
frombeneath
steering
column
to
access
pedal
assembly
.
See513
In-
terior
Trim
.
12
.
Make
sure
al¡
nuts,
fluid
couplings,
thread
bores
and
mating
surfaces
are
clean
.
BRAKES
340-
9
0011261
Fig
.
13
.
Brake
pedal
clevispin
and
retaining
clip
(A)
.
Brake
booster
mounting
nuts
shown
at
arrows
.
13
.
If
necessary,
mount
master
cylinder
to
vacuum
booster
using
a
new
O-ríng
and
newself-locking
nuts
.
CAUTION-
Do
not
over-torque
the
master
cylinder
mounting
bolts
.
This
could
damage
the
brake
booster
and
prevent
proper
vacuum
build-up
.
14
.
Installation
is
reverse
of
Rmoval
.
"
Bleed
brakes
as
described
earlier
.
"
Check
and,
if
necessary,
adjust
brake
light
switch
above
brake
pedal
.
Tightening
Torques
"
Brakemaster
cylinder
to
brake
booster
...........
.
..
..
...
26
Nm
(18
ft-Ib)
"
Brake
booster
to
bulkhead
.
.
..
..
...
22
Nm
(16
ft-Ib)
"
Brake
fluidline
to
master
cylinder
or
ABS
hydraulic
unit
.......
.
..
17-19
Nm
(13-14
ft-lb)
9
.
Remove
clip
and
clevis
pin
from
brake
booster
pushrod
and
disconnect
it
from
brakepedal
.
Remove
brake
booster
mounting
nuts
.
See
Fig
.
13
.
NOTE-
10
.
Working
in
engine
compartment,
remove
brake
booster
When
replacing
the
brake
booster
one-way
valve
or
together
with
master
cylinder
.
vacuum
hose,
install
the
valve
so
that
the
molded
arrow
is
pointing
toward
the
intake
manifold
.
Use
new
hose
11
.
If
booster
or
master
cylinder
O-ring
is
being
replaced,
clamps
.
disconnect
master
cylinder
from
brake
booster
.
BRAKE
BOOSTER
610-6
ELECTRICAL
COMPONENT
LOCATIONS
Fig
.
15
.
M44
engine
harness
connectors
atair
intake
0011644
Fig
.
16
.
A/
C
recharging
ports
(arrows),
right
rear
of
engine
compart-ment
COMPONENT
LOCATIONS
0012427
811004
Fig
.
17
.
Six-cylinder
ignition
coil
in
top
of
cylinder
head
(M52
engine)
.
Fig
.
18
.
Cooling
fan
dualswitch
in
radiator
(arrow)
.
0013203
Table
a
.
E36
Component
Locations
Component
Model
Year
Location
Refer
to
Anti-theft
Control
Module
1992-1998
Behind
glove
compartment
Fig
.
8
.
Fig
.
9
.
Anti-theft
Horn
1
1992-1998
1
Right
rear
engine
compartment
Anti-slip
(Traction)
Control
Module
1994-1998
Power
distribution
box
Fig
.
8
.
(AST/ASC+T)
Fig
.
9
.
Anti-slip
(Traction)
Control
Switch
1994-1998
In
center
console
Automatic
Climate
(A/C)
Control
1992-1998
Behind
center
console
Module
AutomaticTransmission
Range
1992-1998
~
Next
to
gear
shift
lever
in
center
console
Fig
.
29
.
Switch
(Gear
Position/Neutral
Safety
Switch)
Auxiliary
Cooling
Fan
Dual
Switch
1992-1998
Right
side
radiator
1
Fig
.
18
.
Auxiliary
Cooling
Fan
Motor
1992-1998
Behind
front
grill
Auxiliary
Fuse
Box
(Left
Splice
1992-1998
I
Behind
left
front
footwell
kick-panel
Panel)
Auxiliary
RelayPanel
1
1992-1998
1
Left
side
of
dash
under
steering
column
Auxiliary
Fuse
Box
In
Trunk
1
1997-1998
1
Right
sideof
trunk
behind
trim
panel
AuADSry
ThrottlePosition
Motor
11994-1998
Front
of
engine
compartment
B+
Jump
Start
Junction
Point
1992-1998
Right
rear
of
engine
compartment
Fig
.
7
.
Back-Up
Light
Switch
(Manual)
1992-1998
Right
or
left
side
top
of
transmission
Fig
.
30
.
Body
Electronics
Control
Module
1994-1998
Behindglove
compartment
Fig
.
8
.
(ZKE
IV)
Fig
.
9
.
Brake
Fluid
Level
Sensor
1992-1998
Top
of
brake
fluid
reservoir
at
master
cylinder
Fig
.
15
.
Brake
Light
Switch
1
1992-1998
1
On
brake
pedal
supportbracket
Brake
Pad
Sensor,
Left
Front
1
1992-1998
1
Left
front
brake
caliper
Brake
Pad
Sensor,
Right
Rear
1992-1998
Right
rear
brake
caliper
Camshaft
Actuator
(VANOS)
1993-1998
Front
of
cylinder
head
Camshaft
Position
Sensor
(Cylinder
1992-1998
Front
of
engine
Identification)
Carbon
Canister
Valve
(TLEV)
1
1997-1998
1
In
sparewheel
well
in
trunk
ELECTRICAL
COMPONENT
LOCATIONS
610-11
Fig
.
5
.
Fig
.
4
.
Fig
.
24
.
Fig
.
7
.
Central
Locking
Module
(ZVM)
11992-1993
1
Behindglove
compartment
I
Fig
.
8
.
Fig
.
9
.
Check
Control
Module
(if
applicable)
1
1992
-
1998
1
Below
left
side
of
dash
Child
Protection
Window
Control
1992-1998
Center
console
(console)
Chime
Module
1992-1998
Below
left
side
of
dash
inleft
dash
trim
panel
Clock
(Multi-Function)
1993-1998
Center
console
Clutch
Pedal
Switch
1992-1998
On
clutch
pedal
support
bracket
Continued
COMPONENT
LOCATIONS
610-12
ELECTRICAL
COMPONENT
LOCATIONS
Table
a
.
E36
Component
Locations
Component
Model
Year
Location
Refer
to
Combination
(Stalk)
Switch
1993-1998
Left
sidesteering
column
(turn
signals/high-low
bean
switch)
Convertible
Top
ActuatingSwitch
1994-1998
Center
console
Convertible
Top
Control
Module
1994-1998
In
lower
left
C-pillar
behind
trim
panel
Convertible
TopEnd
Position
Switch
1994-1998
In
convertible
top
linkage
Convertible
Top
Motor
1994-1998
In
left
sideof
trunk
behind
trim
panel
Convertible
Top
Position
1994-1998
In
convertible
top
linkage
Microswitch
Convertible
Top
Storage
Lid
Lock
1994-1998
In
convertible
top
compartment
left
side
Motor
Convertible
Top
Storage
Lid
1994-1998
Inright
side
convertible
top
storage
lid
latch
Microswitch
Convertible
Top
Storage
Lid
Motor
1994-1998
In
left
side
of
trunk
behind
trim
panel
Coolant
Leve¡
Sensor
(if
applicable)
1992-1998
Bolted
on
radiator,
left
side
Coolant
Temperature
Sensor
1992-1998
Left
front
of
engine/cylinder
head
Fig
.
19
.
Fig
.
20
.
Cooling
Fan
Dual
Switch
1992-1998
Right
side
radiator
Fig
.
18
.
Cooling
Fan
Motor
1992-1998
Behind
front
grill
Crankshaft
Position/RPM
Sensor
1992-1995
At
front
crankshaft
pulley
Crankshaft
Position/RPM
Sensor
1996-1998
Left
rearof
crankcase
Crash
Sensor,
Airbag
1992-1993
On
right/left
frontstrut
tower
Crash
Control
Module
1992
Auxiliary
relay
panel
Crash
Control
Module
1993-1998
Driver's
side
footwell
Crash
Sensor,
Right/Left
Side
1997-1998
Right/left
door
sill
behind
front
seat
Impact
Airbag
Cruise
Control
Actuator
1992-1998
Left
front
of
engine
compartment
Fig
.
7
.
Cruise
Control
Module
1992-1998
Behind
glove
compartment
Fig
.
8
.
Fig
.
9
.
Data
Link
Connector
1992-1998
Right
sideof
engine
Fig
.
7
.
Digital
Motor
Electronics
(DME)
1992-1998
Right
rear
engine
compartment,
behind
bulkhead
panel
Fig
.
7
.
Control
Module
DoorLock
Heater
1993-1994
Left
front
doorhandle
DoorHandle
Switch
1994-1998
left
front
door
Drive-away
Protection
(EWS
II)
1/1995
-
1998
Behind
glove
compartment
Fig
.
8
.
Module
Fig
.
9
.
Dual
Coolant
Temperature
Sensor
1997-1998
Below
intake
manifold
Fig
.
19
.
COMPONENT
LOCATIONS
Fig
.
20
.
Electronic
Immobilizer
Control
(
1/1995-1998
~
Behind
glove
compartment
Fig
.
8
.
Module
(EWS
II)
Fig
.
9
.
Continued
Tablea
.
E36
Component
Locations
Component
Model
Year
Location
Refer
to
Engine
Compartment
Light
Switch
1993-1996
Over
right
headlight
assembly
Fig
.
7
.
Engine
Control
Module
(ECM)
1992-1998
Right
rear
enginecompartment,
behind
bulkhead
panel
Fig
.
7
.
Engine
Control
Module
(System)
1992-1998
I
Power
distribution
box
Fig
.
2
.
Relay
Engine
Coolant
Leve¡
Sensor
1
1992-1998
1
Left
front
of
enginecompartment,
radiator
coolant
reservoir
Engine
Coolant
Temperature
1992-1998
I
Left
front
of
engine
under
intake
manifold
I
Fig
.
19
.
Sensor
Fig
.
20
.
Evaporative
Emission
Valve
1992-1998
Left
side
strut
Power
area
Evaporator
Temperature
Sensor
1992-1998
Left
side
of
heater
box
EWS
II
Control
Module
1/1995
-
1998
Behind
glove
compartment
Fig
.
8
.
Fig
.
9
.
EWS
II
Ring
Antenna
1
1/1995
-
1998
1
At
ignition
cylinder
EWS
II
Transmitter
Module
1/1995
-
1998
Right
side
of
steering
column
in
auxiliaryrelay
panel
Fig
.
3
.
Exhaust
Gas
Flap
Valve
1996-1998
Left
rear
muffler
area
Flasher
Relay
1992-1998
Power
distribution
box
Fig
.
2
.
Foglight
Relay
1
1992-1998
1
Power
distribution
box
1
Fig
.
2
.
Fresh
Air
FlapActuator
1
1992
1
Right
side
of
heater
box
Fresh
Air
FlapActuator
1
1993-1995
1
Below
right
side
heater
box
Fresh
Air
FlapActuator
1
1996-1998
Below
left
side
heater
box
Fuel
Injectors
1992
-
1998
Top
left
side
of
engine
Fuel
Leve¡
Sensor,
Left
1
1992-1998
/
Under
left
side
of
rear
seat
infuel
tank
Fuel
Leve¡
Sensor,
Right
1
1992-1998
1
Under
right
side
of
rear
seat
in
fuel
tank
1
Fig
.
28
.
Fuel
Pump
1
1992-1998
1
Under
right
side
of
rear
seat
in
fuel
tank
1
Fig
.
28
.
Fuel
Pump
Relay
1
1992-1998
1
Power
distribution
box
1
Fig
.
2
.
Fuel
Pump/Start
Identification
Relay
1994
-
1996
Power
distribution
box
Fuel
Tank
Pressure
Sensor
1
1997-1998
1
Right
rear
wheel
well
behind
trim
liner
ELECTRICAL
COMPONENT
LOCATIONS
610-13
Fuse
andRelay
x(Power
11992-1998
I
Left
side
of
engine
compartment
I
Fig
.
2
.
Distribution
Box
Fig
.
7
Fig
.
10
.
Gas
Filler
LockMotor
1992-1998
Right
side
of
luggage
compartment
Gear
Position/Neutral
Safety
Switch
1992-1998
Next
to
gear
shift
lever
in
center
console
Fig
.
29
.
(Automatic
Transmission
Range
Switch)
Glove
Compartment
Lock
Motor
1994-1998
Behind
glove
compartment
Grounds
G
100
1995-1998
Front
of
left
front
fender
(headlights)
Fig
.
22
.
G
101
1992-1998
Front
of
right
front
fender
Continued
COMPONENT
LOCATIONS
610-18
ELECTRICAL
COMPONENT
LOCATIONS
Tablea
.
E36
Component
Locations
Component
Model
Year
Location
Refer
to
Transmission
Control
Module
1992-1998
Right
rear
engine
compartment
behíndpanel
Fig
.
7
.
Transmission
Range
Switch
(Gear
1992-1998
Next
to
gear
shift
lever
in
center
console
Fig
.
29
.
Position/Neutra
l
Safety
Switch)
Transmission
Valve
Unít
1992-1993
In
transmission
oil
pan
Transmission
Valve
Unit
1994-1998
On
left
side
of
transmission
Trunk
Lid
Microswitch
1994-1998
In
trunk
lid
Trunk
Lid
Relay
1994-1998
Behind
glove
compartment
(convertible)
Fig
.
8
.
Fig
.
9
.
Trunk
Light
Switch
1992-1998
Left
underside
of
trunk
lid
TrunkLockMotor
1992-1998
Rear
of
luggage
compartment
UnloaderRelay
1992-1998
Inleft
splice
panel
behind
footwell
speaker
grille
Fig
.
5
.
Variable
Camshaft
Control
Module
1994-1996
I
Rear
right
side
of
engine
compartment
(VANOS)
Variable
Camshaft
Control
(VANOS)
1993-1998
Front
ofcylinder
head
Veh¡cle
Speed
Sensor
1992-1998
On
final
drive
Volume
Air
Flow
Sensor
(M42
1992-1995
Left
side
of
engine
compartment
Fig
.
7
.
Engine)
Washer
Fluid
Leve¡
Sensor
1992-1998
Right
frontof
engine
compartment
Washer
Pump
1992-1998
Right
side
of
engine
compartment
on
windshield
washer
reservoir
Fig
.
7
.
Wiper
Motor
1992-1998
Rear
engine
compartment
Wiper
Motor
Relay
1992-1998
Inleft
splice
panel
behind
footwell
speaker
grill
Fig
.
5
.
Wiper
Relay
1992-1998
(
Behind
glove
compartment
I
Fig
.
8
./
Fig
.
9
.
Wiper/Washer
Module
1992-1993
Left
side
of
footwell
under
foot
rest
(early)
Wiper/Washer
Module
1993
(late)-
Behind
glove
compartment
Fig
.
8
.
1998
1
Fig
.
9
.
ZAE
Airbag
Control
Module
1
1994-1998
1
On
center
tunnel
under
rear
seat
cushion
ZKE
IV
Control
Module
1994-1998
I
Behind
glove
compartment
Fig
.
8
.I
Fig
.
9
.
COMPONENT
LOCATIONS