Page 99 of 357
ENGINE CONTROL SYSTEM MS41.1 (6–CYLINDER S52)
.5 VI/GR
X117520
7
3620
.35 SW
18
.5 GN
TD
31X6000
19
5 X10054
.5 SW/VI
6 X20
3 X18350
S221
EVAPORATOR
CONTROLLER
14
1
A837
ELECTRONIC
IMMOBILIZER
CONTROL
MODULE (EWS III)
.5 GN
60
X6002
18X6000
88
17
.5 WS/VI/GE .5 GN/BL
15
.5 BR/RT
3131
A52
SLIP CONTROL
MODULE
(ABS/ASC)
X183492
S220
AIR CONDITIONING/
RECIRCULATING
SWITCH ASSEMBLY
X189
2X20
1 SW/VI 1 SW/VI
1 SW/VI
X1620
.5 SW
3
X1047
X508
K33a
AIR CONDITIONING
RELAY, MOTRONIC
.5 SW/VI
X35
21.5 SW/VI
9 24
TI
31 .5 WS/SW
X8015
1
X6002D100
DATA LINK
CONNECTOR .5 SW .5 SW
.5 SW
TXD 2 PGSP R
.5 SW
5 X1805
.35 SW
82
9
18
80
10
81
81
11
77
45
12
88
X6031
A2w
INSTRUMENT
CLUSTER
3) ENGINE SPEED
INPUT
A6000
ENGINE CONTROL
MODULE (DME)
1) DRIVE–AW AY
PROTECTION
35X1175
D100
DATA LINK
CONNECTOR
A52
SLIP CONTROL
MODULE
(ABS/ASC) .5 BR/RT .75 SW/GN .75 SW/BR .75 SW/RT .75 WS/GN.75 SW/GR .75 SW/BR .75 SW/RT .75 WS/GNNOT USED
M VERSIONS
Page 101 of 357

8
B6240
KNOCK SENSOR 1210.25-09
3132293048
Y6101
CYL. 1 FUEL
INJECTION VALVE
Y6102
CYL. 2 FUEL
INJECTION VALVE
Y6103
CYL. 3 FUEL
INJECTION VALVE 1210.25-02
35
+
–
Y6104
CYL. 4 FUEL
INJECTION VALVE
Y6105
CYL. 5 FUEL
INJECTION VALVE
Y6106
CYL. 6 FUEL
INJECTION VALVE 1210.25-02
361210.25-034138 40 3742
+
–
46 47Y6130
IDLE SPEED
CONTROL VALVE 1210.25-0334 3352
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 1210.25-01
1210.25-01
718 9
1210.25-01
32
D
+
– F205
30A
1723 AEB9A
F1815A
M2
FUEL PUMPK6301w
FUEL PUMP RELAY
1210.25-061210.25-06
1210.25-04
F137.5A
S30
BRAKE LIGHT
SWITCH
281210.25-04310174524
F4615A
Y6139
LEAKAGE DIAGNO-
SIS PUMP 1210.25-04
3430
1210.25-06
1918
1210.25-04
121291939
B6254
THERMAL OIL
LEVEL SWITCH
F2610A
434416204710
R6385
THROTTLE
POSITION SEN-
SOR/CRUISE
CONTROL
ACTUATOR26
1210.25-08
1210.25-08
13
1210.25-09
122223
1210.25-07
2425
1210.25-07
2728
1210.25-07
2236
1210.25-08
37
1210.25-08
17111223
1210.25-091210.25-101210.25-09
213327356
1210.25-10
4565
26
A6000
ENGINE CONTRO
MODULE (DME)
1210.25-08
436
P98
FUSE HOLDER IN
E–BOX1210.25-00
K6326
UNLOADER RELAY,
TERMINAL 15
A8500
TRANSMISSION
CONTROL MODULE
(EGS)G6400
B+ JUNCTION
POINT E–BOX
K6300
ENGINE CONTROL
MODULE RELAY
1210.25-05
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
1210.25-051210.25-05P98
FUSE HOLDER IN
E–BOXG7512
B+ JUNCTION
POINT
K19
COMPRESSOR
CONTROL
RELAY 1210.25-10K6304
SECONDARY AIR
PUMP RELAY
Y6133
AIR PUMP
S3
AUTOMATIC TRANS-
MISSION RANGE SWITCH 1210.25-10
1210.25-09
1210.25-07
B6231
OIL PRESSURE
SWITCHG6509
GENERATORM6510
STARTER
B6205
INTAKE AIR
TEMPERATURE
SENSORB6236
ENGINE COOLANT
TEMPERATURE
SENSORB6238
OIL TEMPERATURE
SENSOR
A52
SLIP CONTROL
MODULE
(ABS/ASC)A2w
INSTRUMENT
CLUSTER
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)S32
CLUTCH SWITCH
A19007
THERMAL OIL
LEVEL SENSOR
(TOENS) CONTROL
MODULEA837
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS III)A8500
TRANSMISSION
CONTROL MODULE
(EGS)
A9008
CRUISE CONTROL
INTERFACE A
2 349
5
2 818
15 21
CD7 131
16 15 14
24 22 21 20
BDC
TXD
19149CDBEA
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)
S8511
REVERSING LIGHT
SWITCH
F10880AF10750A
F20230AF20320AF20430A
P90
FRONT POWER
DISTRIBUTION BOX1210.25-04
P90
FRONT POWER
DISTRIBUTION BOX
Y6550
SOLENOID VALVE
(”RUNNING
LOSSES”) Y6167
VALVE, INDIVIDUAL CONTROL IN-
TAKE SYSTEM
Y6163
SECONDARY AIR PUMP VALVE
Y6120
EVAPORATIVE EMISSION VALVE
Y6276
VARIABLE CAMSHAFT CONTROL
VALVE 2 (OUTLET)
Y6275z
VARIABLE CAMSHAFT CONTROL
VALVE 1 (INLET)
1210.25-09 1210.25-01
1210.25-001210.25-00
1210.25 ENGINE CONTROL SYSTEM MS42.1 (6–CYLINDER M52)
Page 106 of 357

Pin Assignments
E = Input, A = Output, M = GroundPin ConnectionDescription/Function Signal Type
9
Not used
10AEKPActivate relayFuel pump relay
11AOELDOil pressure signalInstrument cluster
12Not used
13Not used
14Not used
15Not used
16Not used
17ATDCrankshaft RPM speed signal TDInstrument cluster
18Not used
19ERFLReverse signalReversing light switch/ Automatic
transmission range switch
20Not used
21AA-OELNOil level signalThermal oil level sensor (TOENS)
control module
22EDFAHRSpeed signal right rearABS/ASC control module
23EKUPPClutch signalClutch switch
24EKL 54 ONBrake signalBrake light switch
25Not used
26E15A26Terminal 15Fuse 26
27EMFLCruise control signalCruise control interface
28ES_BLTSBrake signalBrake light switch
29AS_KORELActivate relayCompressor control relay
30ALDPVActivate valveLeakage diagnosis pump
31Not used
32E/ATXDIITXD diagnosis data linkData link connector
33ES_DWADrive-away protection signal (code)Electronic immobilizer control
module (EWS III)
34ELDPSLeakage signalLeakage diagnosis pump
35M31GroundCruise control interface
36E/ACAN+CAN bus highInstrument cluster,
ABS/ASC control module
Page 107 of 357
Pin Assignments
E = Input, A = Output, M = GroundPin ConnectionDescription/Function Signal Type
37
E/ACAN–CAN bus lowInstrument cluster, ABS/ASC
control module
38Not used
39Not used
40Not used
X60005
Pin Type Signal Description/Function Connection
1
AP_ZSZ3Ignition coil signalCyl. 3 ignition coil
2AP_ZSZ2Ignition coil signalCyl. 2 ignition coil
3AP_ZSZ1Ignition coil signalCyl. 1 ignition coil
4Not used
5M31LGroundGround point
6MA_ZSRGroundGround point
7AP_ZSZ6Ignition coil signalCyl. 6 ignition coil
8AP_ZSZ5Ignition coil signalCyl. 5 ignition coil
9AP_ZSZ4Ignition coil signalCyl. 4 ignition coil
Page 116 of 357
ENGINE CONTROL SYSTEM MS42.1 (6–CYLINDER M52)
6
11191 .5 BL
A8500
TRANSMISSION
CONTROL MODULE
(EGS)A6000
ENGINE CONTROL
MODULE (DME) X6000422 21 X1170
A52
SLIP CONTROL
MODULE
(ABS/ASC)
.5 BR/GN
6
X8500
88X60002
4
86 .35 GE3
85
.35 SW .5 WS/VI
X1894
.35 WS/GN
G6509
GENERATOR
13
X6524
2 .5 BL
26
X6231
1X60003
.5 BR/GN
B6231
OIL PRESSURE
SWITCH
1) PRESSURE
BETWEEN
0.2–0.5 BAR
2) NORMAL
PRESSURE11
.5 GE 10.5 BR
20
366
17 .5 SW
.5 GE
377
A2w
INSTRUMENT
CLUSTER
14
FUSE DETAILS
0670.3
F275A
X10017
P90
FRONT POWER
DISTRIBUTION BOX
23
X1893
32 X60004
.5 WS/VI
X600217
D100
DATA LINK
CONNECTOR X16
X17X16.5 BR
.5 GE .5 SW
X1047X213
.5 BL
TD CAN + CAN –
CAN + CAN –TXD2 TXD2
D+
CAN + CAN –TXD2
15
INSTRUMENT
CLUSTER
6211.0CHARGING
SYSTEM
1230.0
.5 BR
12
CAN + CAN –
CAN –CAN +
Z3 VERSIONS
Page 119 of 357
1230.0 CHARGING SYSTEM
A2w
INSTRUMENT
CLUSTER X175
X176S2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START
X2091
7 X33
POWER
DISTRIBUTION
0670.2X203
2.5 GN
2.5 GN
.5 GN
.5 BL
X600212
D100
DATA LINK
CONNECTOR .5 BL
X2025
.5 BL
X400
3
.75 BL
X213
X8004
.5 BL
X1100
1.5 GN
1.5 BL
TELEPHONE
CONNECTOR
2
10
3
G6509
GENERATORB+
D+
POWER
DISTRIBUTION
0670.2
X6509
16 RT
X7509
M VERSIONS
A52
SLIP CONTROL
MODULE
(ABS/ASC) X117524
.75 BL
Page 126 of 357
S30
BRAKE LIGHT
SWITCH
8
S3
AUTOMATIC
TRANSMISSION
RANGE SWITCH
S8503
PROGRAM SWITCHA8500
TRANSMISSION
CONTROL MODULE
(EGS)
L1 L2 L3 L4
54
P98
FUSE HOLDER IN
E–BOX 2460.2-00
F285A
26
2460.2-03
36379
2460.2-08
F2610AP90
FRONT POWER
DISTRIBUTION BOX 2460.2-03
204513 2718
S8507
KICK–DOWN
SWITCH 2460.2-023428
&& & &
F4615AP90
FRONT POWER
DISTRIBUTION BOX 2460.0-04
10
Y8521
TRANSMISSION
VALVE UNIT
522 2460.2-01
AM2460.2-02
X8500
X8500
EGS
Y19
SHIFT–LOCK 2460.2-02
252
A4S 270R
G6400
B+ JUNCTION
POINT E–BOX2460.2-03
2460.2-02
5330334322114
N
S
42 15
A2w
INSTRUMENT
CLUSTER 2460.2-02
8886
F20430A
POWER
DISTRIBUTION
0670.2
85
A6000
ENGINE CONTROL
MODULE (DME) 2460.2-00TXD2
TXD2
D100
DATA LINK
CONNECTOR
A52
SLIP CONTROL
MODULE
(ABS/ASC) 2460.2-02
TXD2
2460.2 ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)
Page 132 of 357
SHIFT LOCK, DATA LINK, KICK–DOWN SWITCH
ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)
5V (15)
234 2818 X8500
X85071X6031
5
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
S8507
KICK–DOWN
SWITCH
1) NORMAL
2) ACCELERATOR
PEDAL FULLY
DEPRESSED GROUND
DISTRIBUTION
0670.4 .5 SW/VI.5 BR/VI.5 BL/GN
15 14 X6031
X1001832F46
15AP90
FRONT POWER
DISTRIBUTION BOX
X60312
X850010.35 BL/RT.5 BL/RT
BRAKE LIGHTS
6325.0X181
1.5 BL/RT
2 1 X1178
Y19
SHIFT–LOCKFUSE DETAILS
0670.3
1 2
–
X781
S30
BRAKE LIGHT
SWITCH
1) BRAKE PEDAL
RELEASED
2) BRAKE PEDAL
DEPRESSED
X782
1 2
88 .5 WS/VI
TXD2
GROUND
DISTRIBUTION
0670.4
X6454
52
6A6000
ENGINE CONTROL
MODULE (DME)
32
TXD2 TXD2
X600217 D100
DATA LINK
CONNECTOR
.5 BL/GN
.5 SW/VI .5 BR/VI .5 WS/VI
85 .35 WS/VI
X600023
86 .35 GE
4
CAN – CAN +CAN – CAN +
36
6
.5 GE
X6000437X16
7
.5 BR
CAN – CAN +
A2w
INSTRUMENT
CLUSTER
11 X1170
10
.5 BR
CAN – CAN +A52
SLIP CONTROL
MODULE
(ABS/ASC)
.5 GE
X1893
X1894
.5 GE .5 BR
CAN – CAN +