2001 BMW Z3M ROADSTER cooling

INDEX















SPEED SENSOR – ABS, RIGHT REAR, B3 3452.2-05. . . . . . . . . . . . . . . . . . .
SPLICE LOCATION VIEWS 8000.0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
START 1240.0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STARTER IMMOBILIZATION SWITCH, S235 1240.0-00. . . . . . . . . . . . . . . . . .
STARTER IMMOBILIZATION SWITCH, S235 1240.0-02. . . . . . . . . . . . . . . . . .
STARTER, M6510 1240.0-01. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STARTER, M6510 1240.0-03. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STEERING ANGLE SENSOR, R33 3452.1-02. . . . . . . . . . . . . . . . . . . . . . . . . . .
STEERING ANGLE SENSOR, R33 3452.2-02. . . . . . . . . . . . . . . . . . . . . . . . . . .
SUBWOOFER AMPLIFIER MODULE, N44 6510.1-09. . . . . . . . . . . . . . . . . . . .
SUBWOOFER, H66 6510.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG) 3234.0. . . . . . . . . . . . .
SUPPLEMENTAL RESTRAINT SYSTEM CONTROL MODULE,
A12 3234.0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SUPPRESSION CAPACITOR, C6000 1210.27-01. . . . . . . . . . . . . . . . . . . . . . .
SYMBOLS 0140.0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TAIL LIGHT, LEFT, H25 6314.0-01. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TAIL LIGHT, LEFT, H25 6314.0-03. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TAIL LIGHT, LEFT, H37 6314.0-01. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TAIL LIGHT, LEFT, H37 6314.0-03. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TAIL LIGHT, RIGHT, H30 6314.0-01. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TAIL LIGHT, RIGHT, H30 6314.0-03. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TAIL LIGHT, RIGHT, H39 6314.0-01. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TAIL LIGHT, RIGHT, H39 6314.0-03. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TEMPERATURE SENSOR, B21z 6211.0-06. . . . . . . . . . . . . . . . . . . . . . . . . . . .
TEMPERATURE SWITCH, S36 6450.6-03. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TEMPERATURE SWITCH, S36 6450.6-07. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TEMPERATURE WHEEL SWITCH, S531 6450.6-01. . . . . . . . . . . . . . . . . . . . .
TEMPERATURE WHEEL SWITCH, S531 6450.6-06. . . . . . . . . . . . . . . . . . . . .
THERMAL OIL LEVEL SENSOR (TOENS) CONTROL MODULE,
A19007 6211.0-04. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
THERMAL OIL LEVEL SWITCH, B6254 1210.27-12. . . . . . . . . . . . . . . . . . . . .
THERMAL OIL LEVEL SWITCH, B6254 6211.0-04. . . . . . . . . . . . . . . . . . . . . . .
THERMAL OIL LEVEL SWITCH, B6254 6211.0-05. . . . . . . . . . . . . . . . . . . . . . .
THERMOSTAT, CHARACTERISTIC MAP COOLING, B6279 1210.26-05. . THROTTLE POSITION SENSOR, R6252 1210.27-04. . . . . . . . . . . . . . . . . . .
TILT SUNROOF MOTOR, M24y 5410.5-00. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TILT SUNROOF SWITCH, S38y 5410.5-00. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TIRE INFLATION SYSTEM 3614.0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TIRE PRESSURE WARNING SYSTEM (RDW) 3623.1. . . . . . . . . . . . . . . . . .
TIRE PRESSURE WARNING SYSTEM (RDW) PUSHBUTTON,
S555 3623.1-00. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TRANSMISSION CONTROL MODULE (EGS), A7000 2460.14. . . . . . . . . . .
TRANSMISSION POSITION INDICATOR LIGHT, E82 2460.14-03. . . . . . . .
TRANSMISSION POSITION INDICATOR LIGHT, E82 6300.0-02. . . . . . . . . .
TRANSMISSION VALVE UNIT, Y8505y 2460.14-01. . . . . . . . . . . . . . . . . . . . .
TRANSMISSION VALVE UNIT, Y8505y 2460.14-04. . . . . . . . . . . . . . . . . . . . .
TRANSVERSE ACCELERATION SENSOR, B74 3452.1-04. . . . . . . . . . . . . . .
TRANSVERSE ACCELERATION SENSOR, B74 3452.2-04. . . . . . . . . . . . . . .
TURN LIGHT, LEFT FRONT, H7 6313.0-02. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TURN LIGHT, LEFT REAR, H6 6313.0-03. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TURN LIGHT, RIGHT FRONT, H4 6313.0-02. . . . . . . . . . . . . . . . . . . . . . . . . . . .
TURN LIGHT, RIGHT REAR, H5 6313.0-03. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TURN/HAZARD LIGHTS 6313.0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UNCOUPLING DIODE (LIGHTS), V10 6314.0-02. . . . . . . . . . . . . . . . . . . . . . . .
UNCOUPLING DIODE (LIGHTS), V9 6314.0-02. . . . . . . . . . . . . . . . . . . . . . . . .
UNLOADER RELAY, TERMINAL 15, K9 6424.0-00. . . . . . . . . . . . . . . . . . . . . . .
VALVE, INDIVIDUAL CONTROL INTAKE SYSTEM, Y6167 1210.26-03. . . .
VARIABLE CAMSHAFT CONTROL VALVE 1 (INLET), Y6275z 1210.26-03.
VARIABLE CAMSHAFT CONTROL VALVE 2 (OUTLET), Y6276 1210.26-03
VARIABLE CAMSHAFT CONTROL VALVES, Y5255 1210.27-03. . . . . . . . . .
VEHICLE SPEED SENSOR, B10 6211.0-02. . . . . . . . . . . . . . . . . . . . . . . . . . . .
WASHER JET HEATER, LEFT, E51 6169.0-00. . . . . . . . . . . . . . . . . . . . . . . . . .
WASHER JET HEATER, RIGHT, E52 6169.0-00. . . . . . . . . . . . . . . . . . . . . . . . .
WASHER PUMP, M4 6160.1-01. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WASHER PUMP, M4 6160.1-02. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WATER VALVE, Y4z 6450.6-01. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WATER VALVE, Y4z 6450.6-06. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WINDOW DEFOGGER SWITCH, REAR, S76 6424.0-00. . . . . . . . . . . . . . . . .
WINDOW DEFOGGER, REAR, 6424.0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.5 RT/WS
B6279
THERMOSTAT,
CHARACTERISTIC
MAP COOLING


FUSES 203, 204, AND 205









FUSE DETAILS


P98
FUSE HOLDER
IN E–BOX
6
F20320A
4 RT/WS
.5 RT/WSX6961
.5 RT/WS.5 RT/WS
X62033
B6203
CRANKSHAFT
POSITION/RPM
SENSOR
1210.26.5 RT/WS
3 X60532.5 RT/WS
2.5 RT/WS
X62073
B6207
HOT FILM AIR
MASS METER
1210.26
X62141
B6214
CAMSHAFT
POSITION SENSOR
1 (INLET)
1210.26
X62241
B6224
CAMSHAFT
POSITION SENSOR
2 (OUTLET)
1210.26
X62791
1210.26
X6963
8F204
30A
10 X8680
F20530A
.5 RT/WS.5 RT/WS .5 RT/WS
X621011
B62101
OXYGEN SENSOR I
(IN FRONT OF
CATALYTIC
CONVERTER)
1210.26
X621021
B62102
OXYGEN SENSOR I
(BEHIND
CATALYTIC
CONVERTER)
1210.26
X622011
B62201
OXYGEN SENSOR
II (IN FRONT OF
CATALYTIC
CONVERTER)
1210.26
X6962
X100165
P90
FRONT POWER
DISTRIBUTION BOX
1.5 RT/WS
F13
5A
6 X10016
1.5 RT/WS
X60212
FUSE DETAILS
0670.3 1.5 RT/WS
.75 RT/WS2.5 RT
.5 RT/WS
X622021
B62202
OXYGEN SENSOR
II (BEHIND
CATALYTIC
CONVERTER)
1210.26
.5 RT/WS
X63048
K6304
SECONDARY AIR
PUMP RELAY
1210.261.5 RT/
WS
8
X63276
K6327
INJECTION
VALVES
RELAY
1210.26
1.5 RT/WS
X700019
A7000
TRANSMISSION
CONTROL MODULE
(EGS)
2460.14
15
.5 RT/WS
X63258
K6325
REVERSING LIGHT
RELAY
2460.14
6322.0
Z3 VERSIONS
WITH EGS

23 33







B62400
DOUBLE KNOCK
SENSOR 1210.26-08
3132293048
Y6101
CYL. 1 FUEL
INJECTION
VA LV E
Y6102
CYL. 2 FUEL
INJECTION
VA LV E
Y6103
CYL. 3 FUEL
INJECTION
VA LV E 1210.26-02
35
+
–
Y6104
CYL. 4 FUEL
INJECTION VALVE
Y6105
CYL. 5 FUEL
INJECTION VALVE
Y6106
CYL. 6 FUEL
INJECTION VALVE 1210.26-02
361210.26-03413840 3742
+
–
46 47Y6130
IDLE SPEED
CONTROL
VA LV E 1210.26-0334 3352
1210.26-02
32
D
+
– F205
30A
1723 AB
F1815A
M2
FUEL PUMPK6301w
FUEL PUMP RELAY
1210.26-061210.26-06
1210.26-04
F135A
M119
LEAKAGE
DIAGNOSIS
PUMP
301210.26-04310174520
S30
BRAKE LIGHT
SWITCH 1210.26-04
28241918129
43441910
Y6390
ELECTRIC
THROTTLE
ACTUATOR2223
1210.26-07
2425
1210.26-07
2728
1210.26-07
2236
1210.26-09
37
1210.26-08
1210.26-09
1727356
1210.26-08
4565
A6000
ENGINE CONTRO
MODULE (DME)
1210.26-09
436
P98
FUSE HOLDER IN
E–BOX1210.26-00
K6327
INJECTION VALVES
RELAY
A7000
TRANSMISSION
CONTROL MODULE
(EGS)G6400
B+ JUNCTION
POINT E–BOX
K6300
ENGINE CONTROL
MODULE RELAY
1210.26-05
B6207
HOT FILM AIR
MASS METERB6203
CRANKSHAFT
POSITION/RPM
SENSOR
B6214
CAMSHAFT
POSITION SENSOR
1 (INLET)
B6224
CAMSHAFT
POSITION SENSOR
2 (OUTLET)B6279
THERMOSTAT,
CHARACTERISTIC
MAP COOLING
1210.26-051210.26-05P98
FUSE HOLDER IN
E–BOXG7512
B+ JUNCTION
POINT
K19
COMPRESSOR
CONTROL
RELAY 1210.26-08K6304
SECONDARY AIR
PUMP RELAY
Y6133
AIR PUMP
1210.26-07
B6205
INTAKE AIR
TEMPERATURE
SENSORB6236
ENGINE COOLANT
TEMPERATURE
SENSORB6238
OIL TEMPERATURE
SENSOR
A52
SLIP CONTROL MODULE
(ABS/ASC)
A65
DYNAMIC STABILITY
CONTROL UNIT (DSC)S32
CLUTCH SWITCH
A19007
THERMAL OIL
LEVEL SENSOR
(TOENS) CONTROL
MODULEA837
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS III)A7000
TRANSMISSION
CONTROL MODULE
(EGS)
A9008
CRUISE CONTROL
INTERFACE A
49
5
2 8
18
15 21
C7 131
16 15 14
24 22 21 20
TXD
720CDBEA
A = 60001
B = 60002C = 60003
D = 60004
E = 60005
B62101
OXYGEN SENSOR I
(IN FRONT OF
CATALYTIC
CONVERTER)
B62201
OXYGEN SENSOR
II (IN FRONT OF
CATALYTIC
CONVERTER)
B62102
OXYGEN SENSOR I
(BEHIND
CATALYTIC
CONVERTER)
B62202
OXYGEN SENSOR
II (BEHIND
CATALYTIC
CONVERTER)
F10880AF10750A
F20130AF20320AF20430A
P90
FRONT POWER
DISTRIBUTION
BOX1210.26-04
Y6167
VALVE, INDIVIDUAL
CONTROL INTAKE
SYSTEM
Y6163
SECONDARY AIR
PUMP VALVE
Y6120
EVAPORATIVE
EMISSION VALVE
Y6276
VARIABLE CAMSHAFT
CONTROL VALVE 2
(OUTLET)
Y6275z
VARIABLE CAMSHAFT
CONTROL VALVE 1
(INLET)
1210.26-09 1210.26-02
1210.26-001210.26-00
D100
DATA LINK
CONNECTOR
T6151
CYL. 1 IGNITION
COIL
T6154
CYL. 4 IGNITION
COIL
T6152
CYL. 2 IGNITION
COIL
T6153
CYL. 3 IGNITION
COIL
T6155
CYL. 5 IGNITION
COIL
T6156
CYL. 6 IGNITION
COIL 1210.26-01
1210.26-01
718 9E2
3C8A
F20230A
D
F2610A
26
D
F4615A
C781412
R10
PEDAL POSITION
SENSOR
1210.26-09 13
9D
1210.26-06
B
30 15 R 15
Z3 VERSIONS
1210.26 ENGINE CONTROL SYSTEM MS43 (6–CYLINDER M54)






Pin Assignments (Z3 Versions)




E = Input, A = Output, M = GroundPin ConnectionDescription/Function Signal Type
37
AP_EVZ5Activate valveCyl. 5 fuel injection valve
38AP_EVZ6Activate valveCyl. 6 fuel injection valve
39Not used
40AT_NWE1Activate valveVariable camshaft control valve 1
(inlet)
41AT_NWA1Activate valveVariable camshaft control valve 2
(outlet)
42AT_TEVActivate valveEvaporative emission valve
43AT_MDK1Activate motorThrottle position actuator
44AT_MDK2Activate motorThrottle position actuator
45AS_KFKCooling signalThermostat, characteristic map
cooling
46AT_LLFSSCLOSE signalIdle speed control valve
47AT_LLFSOOPEN signalIdle speed control valve
48MW_KSGroundShield knock sensor
49AS_DISAActivate valveValve, individual control intake
system
50Not used
51Not used
52AS_SLPVActivate valveSecondary air pump valve
X60004
Pin Type Signal Description/Function Connection
1
Not used
2Not used
3AS_SLPActivate relaySecondary air pump relay
4Not used
5Not used
6Not used
7MM_FWG1GroundPedal position sensor
8EA_FWG1Signal, pedal position 1Pedal position sensor
9AU_FWG1Voltage supplyPedal position sensor



ENGINE CONTROL SYSTEM MS43 (6–CYLINDER M54)










1 X62072
117.5 SW
.5 GE
B6207
HOT FILM AIR
MASS METER
A6000
ENGINE CONTROL
MODULE (DME)
.5 GE+–
3X6207
.5 RT/WS
45X60003
.5 GR/BR
6FUSE DETAILS
0670.3
F20320A
X8680
P98
FUSE HOLDER IN
E–BOX
21
.5 BR
8
12X6203
.5 RT/WS .5 RT/WS .5 RT/WS .5 RT/WS
3X6203
B6203
CRANKSHAFT
POSITION/RPM
SENSOR
.5 GE
18.5 BR
5
32X6214
1X6214
B6214
CAMSHAFT
POSITION SENSOR
1 (INLET)
.5 GE
15.5 BR
2
32X6224
1X6224
B6224
CAMSHAFT
POSITION SENSOR
2 (OUTLET)
1X6279
2X6279
B6279
THERMOSTAT,
CHARACTERISTIC
MAP COOLING
Z3 VERSIONS



COMPONENT LOCATION CHART










COMP.8500.0 7100.0LOCATION DESCRIPTION
B6254 THERMAL OIL LEVEL SWITCH . . . . . . . . . lower LH side of engine compartment

B6279
THERMOSTAT, CHARACTERISTIC MAP
COOLING . . . . . . . . . . . . . . . . . . . . . . . . . . .
front of engine





B9508 .
PRESSURE SWITCH . . . . . . . . . . . . . . . . . . .
front RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30-2

B62101

OXYGEN SENSOR I (IN FRONT OF
CATALYTIC CONVERTER) . . . . . . . . . . . .

on catalytic converter





B62102

OXYGEN SENSOR I (BEHIND CATALYTIC
CONVERTER) . . . . . . . . . . . . . . . . . . . . . . .

on catalytic converter





B62201

OXYGEN SENSOR II (IN FRONT OF
CATALYTIC CONVERTER) . . . . . . . . . . . .

on catalytic converter





B62202
OXYGEN SENSOR II (BEHIND
CATALYTIC CONVERTER) . . . . . . . . . . . .
on catalytic converter





B62400
DOUBLE KNOCK SENSOR . . . . . . . . . . . . .
LH side of engine



C100 . . CONTACT RING . . . . . . . . . . . . . . . . . . . . . . . top of steering column
C101 . . CONTACT RING . . . . . . . . . . . . . . . . . . . . . . . top of steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-3
C6000 . SUPPRESSION CAPACITOR . . . . . . . . . . . . top center of engine
D100 . . DATA LINK CONNECTOR . . . . . . . . . . . . . . . rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2

D110 . .

OBD II CONNECTOR . . . . . . . . . . . . . . . . . . .

center console right . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

03-3


E7 . . . . . LEFT HEADLIGHT . . . . . . . . . . . . . . . . . . . . . front LH side of engine compartment
E8 . . . . . RIGHT HEADLIGHT . . . . . . . . . . . . . . . . . . . . front RH side of engine compartment
E9 . . . . . REAR DEFOGGER I . . . . . . . . . . . . . . . . . . . hard top

E11 . . . .
LEFT HIGH BEAM LIGHT . . . . . . . . . . . . . . .
near front LH headlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29-1

E12 . . . RIGHT HIGH BEAM LIGHT . . . . . . . . . . . . . near front RH headlight
E13 . . . LEFT LOW BEAM LIGHT . . . . . . . . . . . . . . . near front LH headlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-1