1999 BMW Z3M COUPE engine



Pin Assignments





E = Input, A = Output, M = Ground
X6000
Pin Type Description/Function Connection
1
ACyl. 2 ignition coil controlCyl. 2 ignition coil
2ACyl. 4 ignition coil controlCyl. 4 ignition coil
3ACyl. 6 ignition coil controlCyl. 6 ignition coil
4MGroundGround point
5ACyl. 2 fuel injection valve controlCyl. 2 fuel injection valve
6ACyl. 1 fuel injection valve controlCyl. 1 fuel injection valve
7MGroundHot wire air mass meter
8EHot wire air mass meterHot wire air mass meter
9ETI-measurement signal (fuel consumption)Not used
10EEngine coolant temperatureEngine coolant temperature sensor
11EFuel tank pressureFuel tank pressure sensor
12EThrottle position signalThrottle position sensor
13Not used
14EIntake air temperatureIntake air temperature sensor
15ESpeed signal right rearABS/ASC control module
16EActivate A/CPressure switch
17Not used
18EDrive away protection signal (code)Electronic immobilizer control module
(EWS III)
19EA/C-ON-signalAir conditioning operating unit
20A“Check engine” indicator controlInstrument cluster
21ACamshaft controlVariable camshaft control valve
22ACyl. 3 fuel injection valve controlCyl. 3 fuel injection valve
23ACyl. 6 fuel injection valve controlCyl. 6 fuel injection valve
24ACyl. 4 fuel injection valve controlCyl. 4 fuel injection valve
25MOxygen sensor heating groundOxygen sensor I (in front of catalytic
converter)
26EBattery voltageB+ jump start junction point
27AActivate valveIdle speed control valve
28MGroundGround point
29ACyl. 1 ignition coil controlCyl. 1 ignition coil



Pin Assignments





E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
30
ACyl. 3 ignition coil controlCyl. 3 ignition coil
31ACyl. 5 ignition coil controlCyl. 5 ignition coil
32MGroundGround point
33ACyl. 5 fuel injection valve controlCyl. 5 fuel injection valve
34MGroundGround point
35AActivate relaySecondary air pump relay
36ACrankshaft RPM speed signal TDInstrument cluster
37Not used
38MGroundShield knock sensor
39MGroundTemperature sensors
40MGroundCrankshaft position/RPM sensor
Fuel tank pressure sensor
41MGroundShield camshaft position sensor
42MGroundThrottle position sensor
43MGroundCamshaft position sensor
44AVoltage supplyThrottle position sensor
Fuel tank pressure sensor
45AThrottle position signalABS/ASC control module
46ETI-measurement signal (fuel consumption)Instrument cluster
47Not used
48AVoltage supplyCrankshaft position/RPM sensor
(Early Production)
49ETerminal 15Ignition switch
50ARunning lossesSolenoid valve
51AActivate valveCharcoal filter shut off valve
52Not used
53AActivate valveIdle speed control valve
54EBattery voltage, terminal 87Engine control module relay
55MOxygen sensor heating groundOxygen sensor II (in front of catalytic
converter)
56MGroundGround point
57ECyl. 1-3 knock sensorKnock sensor
58ECyl. 1-3 knock sensorKnock sensor



Pin Assignments





E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
59
ECyl. 4-6 knock sensorKnock sensor
60EProgramming voltageData link connector
61MOxygen sensor heating groundOxygen sensor II (behind catalytic
converter)
62EActivate valveSecondary air pump value
63ECyl. 4-6 knock sensorKnock sensor
64ECamshaft positionCamshaft position sensor
65ECamshaft positionCamshaft position sensor
66Not used
67MOxygen sensor signal groundOxygen sensor I (in front of catalytic
converter)
68EActivate valveEvaporative emission valve
69EActivate relayFuel pump relay
70MOxygen sensor signal groundOxygen sensor II (in front of catalytic
converter)
71MOxygen sensor signal groundOxygen sensor I (behind catalytic
converter)
72MOxygen sensor signal groundOxygen sensor II (behind catalytic
converter)
73EActivate relayEngine control module relay
74AActivate A/C compressorCompressor control relay
75ESensor signalOxygen sensor I (in front of catalytic
converter)
76ESensor signalOxygen sensor II (in front of catalytic
converter)
77ESensor signalOxygen sensor I (behind catalytic
converter)
78ESensor signalOxygen sensor II (behind catalytic
converter)
79MOxygen sensor heating groundOxygen sensor I (behind catalytic
converter)
80AASC signal ZASlip control module ABS/ASC
81AASC signal ZWVSlip control module ABS/ASC
82AASC signal MSRSlip control module ABS/ASC
83ESensor signalCrankshaft position/RPM sensor



Pin Assignments





E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
84
Not used
85Not used
86Not used
87EBattery voltage, terminal 87Engine control module relay
88E/ATxD diagnosis data linkData link connector



ENGINE CONTROL SYSTEM MS41.1 (6–CYLINDER S52)
X6300
POWER










46
.5 RT
4 RT/WS
.5 RT/WS.5 BR
4 RT4 RT
8 X6300
73 5426 X6000
X6506
X6821
2
K6300
ENGINE CONTROL
MODULE RELAYG6430
B+ JUMP START
JUNCTION POINT
A6000
ENGINE CONTROL
MODULE (DME)86
8530
87
.5 RT/WS.5 RT/WS
M6506
E–BOX FAN POWER
DISTRIBUTION
0670.22
1210.17-041.5 RT/WS 1 RT/WS
.5 RT/WS
1210.17-01 1210.17-01
4 RTX6412
.5 RT/WS
87
2.5 RT14 X6002
D100
DATA LINK
CONNECTOR
X6411
31
6 RTX6430
1210.17-05
M VERSIONS
2.5 RT/WS
1210.17-06
LATE PRODUCTION



ENGINE CONTROL SYSTEM MS41.1 (6–CYLINDER S52)
Y6275
VARIABLE CAM-
SHAFT CONTROL
VALVE 1
.5 RT/WS
2
X6275
1 X6275









A6000
ENGINE CONTROL
MODULE (DME) .5 GN/BL
Y6106
CYL. 6 FUEL
INJECTION VALVE
–+
–+Y6101
CYL. 1 FUEL
INJECTION
VA LV E –+
Y6102
CYL. 2 FUEL
INJECTION VALVE
–+
Y6103
CYL. 3 FUEL
INJECTION VALVE
–+
Y6104
CYL. 4 FUEL
INJECTION
VA LV E –+
Y6105
CYL. 5 FUEL
INJECTION VALVE
–+
2712165222423 X6000
.5 RT/WS
1 X6101
1 X6103
.5 RT/WS
1
X6105
1 X6106
.5 RT/WS
1 X6104.5 RT/WS
1 X6102
1 RT/WS
2 X6130
2 X61022 X61042 X6106
2
X61052 X6103
2X6101
.75 BR/WS .75 BR/RT .75 BR/GE .75 BR/BL .75 BR/GN .75 BR/VI X6130
Y6130
IDLE SPEED
CONTROL VALVEX6820
.5 RT/WS
1210.17-00
1.5 RT/WS1210.17-00
33 .5 WS/
GN
3
.5 WS/
GE
53
.5 RT/WS
3131313131313131
M VERSIONS

.5 GN
1


ENGINE CONTROL SYSTEM MS41.1 (6–CYLINDER S52)
2.5 GN









7 X33
POWER
DISTRIBUTION
0670.2
21 X20
49 X6000
2.5 GNS2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START
.75 GN
.5 GN
43 .5 BR/GR
.5 BR/RT
B6256
DUAL
TEMPERATURE
SENSOR
(COOLANT
TEMPERATURE)1 2 X6205
.5 BR/GR
B6205
INTAKE AIR
TEMPERATURE
SENSOR .5 GR
14 3910 X6000
A6000
ENGINE CONTROL
MODULE (DME) X203
2.5 GN
1 X209
X6832
X8038
2
X6256
X8071X8051
A2w
INSTRUMENT
CLUSTER
1112 X20
17 18 X17
.5 BR/GE .5 BR/VI
.5 BR/GE .5 BR/VI
.5 BR/GE .5 BR/VI
.5 BR/GR
B6236
ENGINE COOLANT
TEMPERATURE
SENSORB6232
ENGINE COOLANT
TEMPERATURE
SENSOR
2
10
3
R
1 X6150
2
4 X6326
K6326
UNLOADER RELAY,
TERMINAL 15
2.5 GN
8 X6326
30
87

X6830
62.5 RT
85 86
2.5 GN
2.5 GNGROUND
DISTRIBUTION
0670.4
2.5 RTX6413
X6415POWER
DISTRIBUTION
0670.210 RT
X6432
POWER
DISTRIBUTION
0670.2
G6430
B+ JUMP START
JUNCTION POINT
10 RT
M VERSIONS

1.5 SW/WS
29 X6454
GROUND
DISTRIBUTION
0670.42









1 3 X6151
X64561 SW/WS
X61521
1 GN1 GN1 GN
3
3 X6152
1 30 2 31 3 X6000
X6831
T6151
CYL. 1 IGNITION
COIL
T6152
CYL. 2 IGNITION
COIL
W6165
SHIELD UP TO
10mm BEFORE
IGNITION COIL
CONNECTOR
A6000
ENGINE CONTROL
MODULE (DME) 1.5 SW/RT 1.5 SW/GE 1.5 SW/BL 1.5 SW/GN 1.5 SW/VI1 SW/RT 1 SW/GE 1 SW/BL 1 SW/GN 1 SW/VI1 GN 1 GN 1 GN
X6151
2
2
X6153
X61532 1
X61541 3 X61542T6154
CYL. 4 IGNITION
COIL
3 X6155
X61552 1
X61561 3 X6156
T6156
CYL. 6 IGNITION
COIL
T6153
CYL. 3 IGNITION
COILT6155
CYL. 5 IGNITION
COIL
1 BR 1 BR 1 BR 1 BR 1 BR 1 BR
GROUND
DISTRIBUTION
0670.4
2.5 GN
4 9 7 6 3 10 X6150
313131313131
1.5 BR
R8554
RESISTOR
X6456
GROUND
DISTRIBUTION
0670.4
1.5 BR
R8554
RESISTOR
X6456
GROUND
DISTRIBUTION
0670.4
1.5 BR
R8554
RESISTOR240
2w240
2w240
2w