1998 BMW Z3M ROADSTER engine

.5 BR/RTM ROADSTER
.5 BR/RT






FUSE DETAILS
0670.3
P90
FRONT POWER
DISTRIBUTION BOX
X1623
X1001714
 !""



#""$


INDICATORS
INSTRUMENT CLUSTER
A2w
INSTRUMENT
CLUSTER
3) ENGINE SPEED
INPUT
7) TACHOMETER
X62321B6232
ENGINE COOLANT
TEMPERATURE
SENSOR
18X1620
.5 SW
GROUND
DISTRIBUTION
0670.4.5 BR/VI
3
TACHOMETER
31
1112
17
.5 BR/GE 24
X16
31
TEMPERATURE
GAUGE
X1047
A6000
ENGINE CONTROL
MODULE (DME) X6000
.5 SW
B6231
OIL PRESSURE
SWITCH
1) PRESSURE
BETWEEN
0.2–0.5 BAR
2) NORMAL
PRESSURE
X1719
2 X6232
23
X20
.5 SW20 X20
.5 BR/GN
.5 BR/GE
X6231
1
X8015
.5 SWX17
A836
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS II) 12 X1659TD .35 SW
TD .5 BR/GN
A8500
TRANSMISSION
CONTROL MODULE
(EGS) 40 X8500TD .5 SW X6091
23
.5 BR/GN .5 BR/VI .5 BR/GE
18 17
.5 BR/VI
7
X6002
15 .5 WS/GN
X2019
.5 WS/GND100
DATA LINK
CONNECTOR
80
F275A
RCHECK
ENGINE15
16
1
X6031
8
D100
DATA LINK
CONNECTOR.5 SW .5 GR
.5 GR
2 1
1
X6002
7
X8051X8071X80106–CYLINDER 4–CYLINDER
36 20 6–CYLINDER
A52
SLIP CONTROL
MODULE
(ABS/ASC) 41 X1171
.5 SW6–CYLINDER
4–CYLINDER .5 WS/GNX8072
6–CYLINDER
+##
M ROADSTER20 X1175M ROADSTER

466–CYLINDER






 !""



#""$



INSTRUMENT CLUSTER
P90
FRONT POWER
DISTRIBUTION BOX
X100182
3FUSE DETAILS
0670.3
9
2 X522
.5 SW/RT
31
GROUND
DISTRIBUTION
0670.4
X5221
H10
CHIME MODULE
F315A
P90
FRONT POWER
DISTRIBUTION BOX
X1001714
FUSE DETAILS
0670.3
F275A
15151531
45
21
+#$#)
12 X33
+"(&&+#&(
22
.5 BL/SW
11 X33
.75 BL/SW
.75 BR
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4ANTI–THEFT
SYSTEM (ALPINE)
6575.2
S2
IGNITION SWITCH
4) OPEN
MOMENTARILY IN
START AND OFF,
OPEN WITH KEY
REMOVED
5) CLOSED IN OFF,
START, RUN AND
ACCESSORYS14
DRIVER’S DOOR
JAMB SWITCH
1) DOOR OPEN
2) DOOR CLOSED .5 BR/GR/GE
X443
.75 BR/GR/GE
2 X352
1 X352
13 X17
.5 GN/RT
.5 GN/RT3 X6031
42 X6000A6000
ENGINE CONTROL
MODULE (DME)A2w
INSTRUMENT
CLUSTER 23
23
12 X16
.35 WS/VIDATA LINK
0670.5
11 .5 WS/GE
DATA LINK
0670.5
M ROADSTER

 !""


#""$
P90
FRONT POWER
DISTRIBUTION BOX
K22
HIGH SPEED
RELAY
B9
INTERMEDIATE
PRESSURE
SWITCH
S36
TEMPERATURE
SWITCHM9
AUXILIARY FAN
MOTORK21
NORMAL SPEED
RELAY
6450.6-036450.6-03
6450.6-036450.6-03
6450.6-03 6450.6-03
B8y
PRESSURE
SWITCH
A6000
ENGINE CONTROL
MODULE (DME) 6450.6-03
B9508
PRESSURE
SWITCH
F165AF4030A
S221
EVAPORATOR
CONTROLLER
AUXILIARY FAN – 6–CYLINDERAUXILIARY FAN – 4–CYLINDER
P97
AUXILIARY FUSE
BOX
K22
HIGH SPEED
RELAY
B9
INTERMEDIATE
PRESSURE
SWITCH
S36y
DOUBLE
TEMPERATURE
SWITCH K21
NORMAL SPEED
RELAY
6450.6-046450.6-04
6450.6-046450.6-04
B8y
PRESSURE
SWITCH
A6000
ENGINE CONTROL
MODULE (DME) 6450.6-04
5B9508
PRESSURE
SWITCH
X18350
F165AF4840A
S221
EVAPORATOR
CONTROLLER
A6000
ENGINE
CONTROL
MODULE (DME) 6450.6-04
P90
FRONT POWER
DISTRIBUTION BOXP90
FRONT POWER
DISTRIBUTION BOX F16
5A
M9
AUXILIARY FAN
MOTOR 6450.6-04
P90
FRONT POWER
DISTRIBUTION BOX
K19
COMPRESSOR
CONTROL RELAY 6450.6-02
F397.5AF165A
Y2
AIR CONDITIONING
COMPRESSOR 6450.6-02
A6000
ENGINE CONTROL
MODULE
(DME) 6450.6-02
K4
BLOWER RELAY 6450.6-00
F2030A
S220
AIR CONDITION-
ING/RECIRCULAT-
ING SWITCH
ASSEMBLY
41
R11
BLOWER
RESISTORS 6450.6-00
S75
BLOWER SWITCH 6450.6-00
M30
BLOWER MOTOR 6450.6-00
35268
S221
EVAPORATOR
CONTROLLER3
A6000
ENGINE CONTROL
MODULE (DME) 6450.6-02B14
EVAPORATOR
TEMPERATURE
SENSOR 6450.6-01
26
X18349
X18350
7 X18349
M111
FRESH AIR
RECIRCULATION
MOTOR 6450.6-01
S531
TEMPERATURE
WHEEL SWITCH 6450.6-01
A605
FUSE HOLDER
F953
2A
Y4z
WATER VALVE 6450.6-01
S2
IGNITION SWITCH 6450.6-006450.6-02 6450.6-00
X18350
5 X18350
6450.6-01
Z3 ROADSTER
6450.6 INTEGRATED HEATING– AND CLIMATE CONTROL

 !""


#""$
M ROADSTER
P97
AUXILIARY FUSE
BOX
K21
NORMAL SPEED
RELAY
S36
TEMPERATURE
SWITCHK22
HIGH SPEED
RELAY 6450.6-08
6450.6-086450.6-08
F165AF4840A
A6000
ENGINE
CONTROL
MODULE (DME) 6450.6-08
P90
FRONT POWER
DISTRIBUTION BOXP90
FRONT POWER
DISTRIBUTION BOX F16
5A
M9
AUXILIARY FAN
MOTOR 6450.6-08
P90
FRONT POWER
DISTRIBUTION BOX
K19
COMPRESSOR
CONTROL RELAY 6450.6-07
F397.5AF165A
Y2
AIR CONDITIONING
COMPRESSOR 6450.6-07
A6000
ENGINE CONTROL
MODULE (DME) 6450.6-07
K4
BLOWER RELAY 6450.6-05 F20
30A
S220
AIR CONDITION-
ING/RECIRCULAT-
ING SWITCH
ASSEMBLY
43
R11
BLOWER
RESISTORS 6450.6-05
S75
BLOWER SWITCH 6450.6-05
M30
BLOWER MOTOR 6450.6-05
1258
S221
EVAPORATOR
CONTROLLER
3
A6000
ENGINE CONTROL
MODULE (DME) 6450.6-05
B14
EVAPORATOR
TEMPERATURE
SENSOR 6450.6-06
26
X18349
X18350
7 X18349
M111
FRESH AIR
RECIRCULATION
MOTOR 6450.6-06
S531
TEMPERATURE
WHEEL SWITCH 6450.6-06
A605
FUSE HOLDER
F953
2A
S2
IGNITION SWITCH 6450.6-056450.6-07 6450.6-05
6450.6-06
K33a
AIR CONDITIONING
RELAY, MOTRONIC 6450.6-05
6
Y4z
WATER VALVE 6450.6-06
B9
INTERMEDIATE
PRESSURE
SWITCHB8y
PRESSURE
SWITCH
5 X18350
B9508
PRESSURE
SWITCH 6450.6-08 6450.6-08
NOT USEDNOT USED 6450.6-08
6450.6-08
AUXILIARY FAN
INTEGRATED HEATING– AND CLIMATE CONTROL



#""$
Pin Assignments (Z3 Roadster)
 !""





E = Input, A = Output, M = GroundX18349
8 Pins, black
X183506 Pins, black
X18349
Pin Type Description/Function Connection
1
ETerminal 15Heating blower relay
2AActivate compressor clutchEngine control module (DME)
3ABlower level 1 (air conditioning)Blower resistor
4ETerminal 15Heating blower relay
5ABlower level 1 (air-recirculation)Blower resistor
6MGround for function lightsGround point
7ETerminal 15Heating blower relay
8AActivate fresh air-recirculationFresh air-recirculation motor
X18350
Pin Type Description/Function Connection
1
Not used
2MGroundGround point
3EClimate-ON-signalAir conditioning/recirculated air operating
unit
4Not used
5AActivate A/C compressorPressure switch
6EEvaporator temperatureEvaporator temperature sensor

.5 SW/VI
&#&#






COMPRESSOR CONTROLS
INTEGRATED HEATING– AND CLIMATE CONTROL !""




#""$


15

F165A
30
87
P90
FRONT POWER
DISTRIBUTION BOX F39
7.5A
18 X10018
FUSE DETAILS
0670.3
.75 SW
2
1
21
.5 SW/BL
5 X51
4
.5 SW/BL
.5 SW/BL
X8056Y2
AIR CONDITIONING
COMPRESSOR
1) NORMAL
TEMPERATURE
2) HIGH
TEMPERATUREK19
COMPRESSOR
CONTROL RELAY
6
A6000
ENGINE CONTROL
MODULE (DME)
5 X10054
FUSE DETAILS
0670.3
6
4 X51
12 X10016
1 SW/VI
.5 VI/GR
X163
X20
X600074
86
85
.5 SW/BL
19
AC
46 X8500
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
.75 BL/WS
6450.6-01
15
36 69
4–CYLINDER
Z3 ROADSTER

INTEGRATED HEATING– AND CLIMATE CONTROL





AUXILIARY FAN
 !""




#""$


.5 SW/GN
X82
1 B9
INTERMEDIATE
PRESSURE
SWITCH
1) ABOVE 18 BAR
PRESSURE
2) 15 BAR
PRESSURE
30
30K22
HIGH SPEED
RELAYK21
NORMAL SPEED
RELAY
X871 .5 SW/GR
2.5 SW/BL
X822 3
3
S36
TEMPERATURE
SWITCH
1) OPEN
2) ABOVE 99
DEGREES C
3) ABOVE 91
DEGREES C
4) OPEN M9
AUXILIARY FAN
MOTOR
8X5366 X524
X127286
87a 858786
85
X127
3
X165
X1001612
42X528
X1001820
FUSE DETAILS
0670.3
2.5 GN/RT
X10027
GROUND
DISTRIBUTION
0670.4
X53
.5 SW/GR
16 X6000
5 X20
A6000
ENGINE CONTROL
MODULE (DME)
.5 SW/GR
B8y
PRESSURE SWITCH
1) PRESSURE
BELOW 21 BAR
2) PRESSURE
ABOVE 30 BAR
3) PRESSURE
ABOVE 2.6 BAR
4) PRESSURE
BELOW 1.5 BAR
S221
EVAPORATOR
CONTROLLER
.5 VI
.5 SW/GE1
4 X10054
X183505 .5 SW/GR
GROUND
DISTRIBUTION
0670.4
B9508
PRESSURE
SWITCH
87
.5 SW/GR2.5 BL
4
X1022
.5 SW/GR25
X165
GROUND
DISTRIBUTION
0670.4
P90
FRONT POWER
DISTRIBUTION BOX
X1001612
FUSE DETAILS
0670.3
X166
15
X872
F165A
34
12F40
30AF165A
.5 SW/GR
6450.6-03
.5 SW/GR
5
6450.6-03
12
34
2 1
Z3 ROADSTER 6–CYLINDER
FUSE DETAILS
0670.3

INTEGRATED HEATING– AND CLIMATE CONTROL





AUXILIARY FAN
 !""




#""$


.35 SW/GR
X1890
1 B9
INTERMEDIATE
PRESSURE
SWITCH
1) ABOVE 18 BAR
PRESSURE
2) 15 BAR
PRESSURE
30
30K22
HIGH SPEED
RELAYK21
NORMAL SPEED
RELAY
X113791 .5 SW/GR
2.5 SW/BL
X18902 3
3
S36y
DOUBLE
TEMPERATURE
SWITCH
1) OPEN
2) ABOVE 88
DEGREES C
3) ABOVE 80
DEGREES C
4) OPEN M9
AUXILIARY FAN
MOTOR
8X5366 X524
X127386
87a 858786
85
X127
2
X165
X1001612
42X525
X15882
FUSE DETAILS
0670.3
2.5 GN/RT
X10027
GROUND
DISTRIBUTION
0670.4
X53
.5 SW/GR
11 X6000
5 X20
A6000
ENGINE CONTROL
MODULE (DME)
.5 SW/GR
B8y
PRESSURE SWITCH
1) PRESSURE
BELOW 21 BAR
2) PRESSURE
ABOVE 30 BAR
3) PRESSURE
ABOVE 2.6 BAR
4) PRESSURE
BELOW 1.5 BAR
S221
EVAPORATOR
CONTROLLER
.5 VI
.5 SW/GE1
4 X10054
X183505 .5 SW/GE
GROUND
DISTRIBUTION
0670.4
B9508
PRESSURE
SWITCH
87
.5 SW/GR4 BL
4
25
X165
GROUND
DISTRIBUTION
0670.4
P90
FRONT POWER
DISTRIBUTION
BOX
X1001612
FUSE DETAILS
0670.3
X166
15
X113792
F165A
34
12F48
40AF165A
12
34
2 1
P90
FRONT POWER
DISTRIBUTION
BOXP97
AUXILIARY FUSE
BOX
FUSE DETAILS
0670.3
0.5
X208
X203
.35 SW/GN.5 GR/VI
X600068
A6000
ENGINE CONTROL
MODULE (DME)X600057
.5 RT/WS
Z3 ROADSTER 4–CYLINDER