A | Battery |
B | Starter |
C | Alternator |
C1 | Voltage regulator |
D | Ignition/starter switch |
J59 | X-contact relief relay |
S162 | Fuse -1- (30), in fuse holder on battery |
S163 | Fuse -2- (30), in fuse holder on battery |
S176 | Fuse -4- (30), in fuse holder on battery |
S177 | Fuse -5- (30), in fuse holder on battery |
T2e | 2-pin connector, near starter (in models without air conditioning system) |
T4 | 4-pin connector, near starter (in models with air conditioning system) |
T6 | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
T10w | 10-pin connector, white, in connector protective housing, on left in plenum chamber |
500 | Screw connection 1 (30), on relay plate |
502 | Screw connection (30a), on relay plate |
D | Ignition/starter switch |
J220 | Motronic control unit, in centre plenum chamber |
S229 | Fuse 29 in fuse holder |
S237 | Fuse 37 in fuse holder |
T6 | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
T14a | 14-pin connector, near battery |
T121 | 121-pin connector |
85 | Earth connection 1, in engine compartment wiring harness |
501 | Screw connection 2 (30), on relay plate |
608 | Earth point, in centre of plenum chamber |
A2 | Positive connection (15), in dash panel wiring harness |
A32 | Positive connection (30), in dash panel wiring harness |
A98 | Positive connection 4 (30), in dash panel wiring harness |
A104 | Positive connection 2 (15), in dash panel wiring harness |
D17 | Positive connection 1 (15), in engine harness |
* | from May 2003 |
*** | up to April 2003 |
J220 | Motronic control unit, in centre plenum chamber |
N70 | Ignition coil 1 with output stage |
N127 | Ignition coil 2 with output stage |
N291 | Ignition coil 3 with output stage |
N292 | Ignition coil 4 with output stage |
P | Spark plug connector |
Q | Spark plugs |
T4a | 4-pin connector |
T4b | 4-pin connector |
T4c | 4-pin connector |
T4d | 4-pin connector |
T121 | 121-pin connector |
15 | Earth point, on cylinder head |
85 | Earth connection -1-, in engine compartment wiring harness |
281 | Earth connection -1-, in engine wiring harness |
D52 | Positive connection (15a), in engine compartment wiring harness |
G2 | Coolant temperature sender |
G28 | Engine speed sender |
G62 | Coolant temperature sender |
G186 | Throttle valve drive (electric power control) |
G187 | Throttle valve drive angle sender -1- (electric power control) |
G188 | Throttle valve drive angle sender -2- (electric power control) |
J220 | Motronic control unit, in centre plenum chamber |
J338 | Throttle valve module |
T3 | 3-pin connector, on front of engine |
T6a | 6-pin connector |
T14a | 14-pin connector, near battery |
T121 | 121-pin connector |
220 | Earth connection (sender earth), in engine wiring harness |
D101 | Connection 1, in engine compartment wiring harness |
G42 | Intake air temperature sender |
G71 | Intake manifold pressure sender |
G212 | Exhaust gas recirculation potentiometer |
G247 | Fuel pressure sender |
J220 | Motronic control unit, in centre plenum chamber |
N18 | Exhaust gas recirculation valve |
T6d | 6-pin connector |
T10 | 10-pin connector, orange, in connector protective housing, on left in plenum chamber |
T10d | 10-pin connector, green, in connector protective housing, on left in plenum chamber |
T121 | 121-pin connector |
** | connection air conditioning |
*** | radiator fan control unit connection |
G40 | Hall sender |
G336 | Intake manifold flap sender |
J220 | Motronic control unit, in centre plenum chamber |
T3b | 3-pin connector, on cylinder head |
T121 | 121-pin connector |
131 | Earth connection -2-, in engine compartment wiring harness |
220 | Earth connection (sender earth), in engine wiring harness |
608 | Earth point, in centre of plenum chamber |
D101 | Connection 1, in engine compartment wiring harness |
G61 | Knock sensor I |
J104 | ABS/ABS control unit with EDL |
J220 | Motronic control unit, in centre plenum chamber |
T10 | 10-pin connector, orange, in connector protective housing, on left in plenum chamber |
T10w | 10-pin connector, white, in connector protective housing, on left in plenum chamber |
T47a | 47-pin connector, on ABS control unit with EDL/ ASR/ ESP |
T121 | 121-pin connector |
A121 | Connection (high bus), in dash panel wiring harness |
A122 | Connection (low bus), in dash panel wiring harness |
G79 | Accelerator position sender |
G185 | Accelerator position sender -2- |
J220 | Motronic control unit, in centre plenum chamber |
J271 | Motronic current supply relay, in protective housing on left in engine compartment (control number 428) |
S133 | Fuse 3, in protective housing on left in engine compartment |
T6b | 6-pin connector |
T10h | 10-pin connector, blue, in connector protective housing, on left in plenum chamber |
T121 | 121-pin connector |
E32 | Connection (87), in Motronic wiring harness |
D104 | Positive connection 2 (30a), in engine compartment wiring harness |
J220 | Motronic control unit, in centre plenum chamber |
N205 | Inlet camshaft control valve -1- |
N276 | Fuel pressure regulating valve |
N290 | Fuel metering valve |
N316 | Intake manifold flap air flow control valve |
S131 | Fuse 1, in protective housing on left in engine compartment |
S132 | Fuse 2, in protective housing on left in engine compartment |
T4n | 4-pin connector, in cable channel left in engine compartment |
T121 | 121-pin connector |
E7 | Positive connection (87a), in Motronic wiring harness |
E32 | Connection (87), in Motronic wiring harness |
E53 | Connection 2 (87a), in engine wiring harness |
F265 | Map-controlled engine cooling system thermostat |
G39 | Lambda probe |
J220 | Motronic control unit, in centre plenum chamber |
N80 | Activated charcoal filter system solenoid valve 1 |
T4n | 4-pin connector, in cable channel left in engine compartment |
T6c | 6-pin connector, near catalytic converter |
T121 | 121-pin connector |
E7 | Positive connection (87a), in Motronic wiring harness |
E30 | Connection (87a), in engine wiring harness |
G294 | Brake servo pressure sensor |
G295 | NOx sender |
J220 | Motronic control unit, in centre plenum chamber |
J583 | NOx sensor control unit, in connector protective housing, near catalytic converter |
T4g | 4-pin connector |
T10v | 10-pin connector |
T14e | 14-pin connector** |
T121 | 121-pin connector |
316 | Earth connection (sender earth 2), in engine wiring harness |
D106 | Connection 4, in engine compartment wiring harness |
D169 | Connection (NOx), in engine compartment wiring harness |
E30 | Connection (87a), in engine wiring harness |
** | Connection is composed of several single wires |
G70 | Air mass meter |
G83 | Radiator outlet coolant temperature sender |
G235 | Exhaust gas temperature sender 1 |
G267 | Potentiometer, temperature selection rotary knob |
J220 | Motronic control unit, in centre plenum chamber |
T5 | 5-pin connector |
T8f | 8-pin connector, behind centre dash panel |
T10d | 10-pin connector, green, in connector protective housing, on left in plenum chamber |
T17a | 17-pin connector, behind centre dash panel |
T121 | 121-pin connector |
316 | Earth connection (sender earth 2), in engine wiring harness |
D106 | Connection 4, in engine compartment wiring harness |
** | only models with Climatronic |
-•-•- | only models without air conditioning system/Climatronic |
E45 | Cruise control system switch |
E227 | Cruise control system (CCS) SET button |
F36 | Clutch pedal switch |
J220 | Motronic control unit, in centre plenum chamber |
T4q | 4-pin connector |
T10e | 10-pin connector, black, in connector protective housing, on left in plenum chamber |
T10s | 10-pin connector, next to steering column |
T10w | 10-pin connector, white, in connector protective housing, on left in plenum chamber |
T121 | 121-pin connector |
A20 | Connection (15a), in dash panel wiring harness |
F | Brake light switch |
F47 | Brake pedal switch |
J17 | Fuel pump relay |
J220 | Motronic control unit, in centre plenum chamber |
J234 | Airbag control unit |
J255 | Climatronic control unit |
S13 | Fuse 13 in fuse holder |
T6 | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
T10 | 10-pin connector, orange, in connector protective housing, on left in plenum chamber |
T10e | 10-pin connector, black, in connector protective housing, on left in plenum chamber |
T16b | 16-pin connector |
T17a | 17-pin connector, behind centre dash panel |
T75 | 75-pin connector |
T121 | 121-pin connector |
A18 | Connection (54), in dash panel wiring harness |
A20 | Connection (15a), in dash panel wiring harness |
A125 | Connection (crash signal), in dash panel wiring harness |
-••- | only models with Climatronic |
G | Fuel gauge sender |
G6 | Fuel pump |
G32 | Coolant shortage indicator sender |
S228 | Fuse 28 in fuse holder |
S232 | Fuse 32 in fuse holder |
S234 | Fuse 34 in fuse holder |
S243 | Fuse 43 in fuse holder |
T6 | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
T14a | 14-pin connector, near battery |
42 | Earth point, next to steering column |
49 | Earth point, on top end of steering column |
135 | Earth connection 2, in dash panel wiring harness |
269 | Earth connection (sender earth) 1, in engine compartment wiring harness |
504 | Screw connection (87F), on relay plate |
A99 | Connection 1 (87), in dash panel wiring harness |
A100 | Connection 2 (87), in dash panel wiring harness |
A101 | Connection 3 (87), in dash panel wiring harness |
*** | only models without Climatronic |
F1 | Oil pressure switch |
G22 | Speedometer sender, on gearbox |
G266 | Oil level and oil temperature sender* |
J285 | Control unit in dash panel insert |
K3 | Oil pressure warning lamp |
K28 | Coolant temperature and coolant shortage warning lamp |
K38 | Oil level warning lamp* |
S5 | Fuse 5 in fuse holder |
S7 | Fuse 7 in fuse holder |
T14a | 14-pin connector, near battery |
T32 | 32-pin connector, blue |
T32a | 32-pin connector, green |
B163 | Positive connection 1 (15), in interior wiring harness |
* | only flexible service interval display |
E86 | Multifunction display call-up button |
E109 | Multifunction display memory switch |
G17 | Ambient temperature sensor |
J119 | Multifunction display |
J255 | Climatronic control unit |
J285 | Control unit with display in dash panel insert |
J533 | Data bus diagnostic interface, in dash panel insert |
K31 | Cruise control system warning lamp |
K83 | Exhaust emissions warning lamp |
K132 | Electric power control fault lamp |
T6e | 6-pin connector |
T12a | 12-pin connector, behind centre dash panel |
T16 | 16-pin connector, in centre dash panel, self-diagnosis connection |
T20 | 20-pin connector |
T32 | 32-pin connector, blue |
T32a | 32-pin connector, green |
A76 | Connection (diagnosis wire K), in dash panel wiring harness |
*** | only models without Climatronic |
-•- | only models with Climatronic |