| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| E74 | Battery master/isolator switch |
| J518 | Entry and start authorisation control unit |
| J682 | Terminal 50 voltage supply relay |
| S1 | Fuses in relay plate fuse holder |
| S7 | Fuses in relay plate fuse holder |
| S9 | Fuses in relay plate fuse holder |
| T1v | Single connector |
| T2gd | 2-pin connector, black |
| T6ma | 6-pin connector, white, on electronics box engine compartment |
| T10c | 10-pin connector, pink, electronics box engine compartment |
| T10d | 10-pin connector, blue, electronics box engine compartment |
| T10f | 10-pin connector, red, electronics box engine compartment |
| T81 | 81-pin connector |
| TV2 | Terminal 30 wiring junction |
| TV22 | Terminal 30 wiring junction 2 |
| U6 | Slave start socket |
| D123 | Connection 21, in engine compartment wiring harness |
| D144 | Positive connection 5 (30), in engine compartment wiring harness |
| S2 | Fuses in relay plate fuse holder |
| S3 | Fuses in relay plate fuse holder |
| S10 | Fuses in relay plate fuse holder |
| S12 | Fuses in relay plate fuse holder |
| S13 | Fuses in relay plate fuse holder |
| S14 | Fuses in relay plate fuse holder |
| S15 | Fuses in relay plate fuse holder |
| S16 | Fuses in relay plate fuse holder |
| S17 | Fuses in relay plate fuse holder |
| S18 | Fuses in relay plate fuse holder |
| D121 | Connection 19, in engine compartment wiring harness |
| D123 | Connection 21, in engine compartment wiring harness |
| D144 | Positive connection 5 (30), in engine compartment wiring harness |
| J271 | Motronic current supply relay |
| J623 | Engine control unit |
| N70 | Ignition coil 1 with output stage |
| N127 | Ignition coil 2 with output stage |
| N291 | Ignition coil 3 with output stage |
| P | Spark plug connector |
| Q | Spark plugs |
| T4ca | 4-pin connector |
| T4cb | 4-pin connector |
| T4cc | 4-pin connector |
| T60 | 60-pin connector |
| T94 | 94-pin connector |
| 131 | Earth connection 2, in engine compartment wiring harness |
| 132 | Earth connection 3, in engine compartment wiring harness |
| 646 | Earth point 2, on bulkhead |
| D50 | Positive connection (30), in engine compartment wiring harness |
| D51 | Positive connection 1 (15), in engine compartment wiring harness |
| D123 | Connection 21, in engine compartment wiring harness |
| D144 | Positive connection 5 (30), in engine compartment wiring harness |
| J623 | Engine control unit |
| J757 | Engine component current supply relay |
| N292 | Ignition coil 4 with output stage |
| N323 | Ignition coil 5 with output stage |
| N324 | Ignition coil 6 with output stage |
| P | Spark plug connector |
| Q | Spark plugs |
| T4cd | 4-pin connector |
| T4ce | 4-pin connector |
| T4cf | 4-pin connector |
| T6ma | 4-pin connector, white, on electronics box engine compartment |
| T60 | 60-pin connector |
| T94 | 94-pin connector |
| 18 | Earth point on engine block |
| 131 | Earth connection 2, in engine compartment wiring harness |
| 132 | Earth connection 3, in engine compartment wiring harness |
| 201 | Earth connection 5, in engine compartment wiring harness |
| D51 | Positive connection 1 (15), in engine compartment wiring harness |
| D123 | Connection 21, in engine compartment wiring harness |
| J364 | Auxiliary heater control unit |
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| N325 | Ignition coil 7 with output stage |
| N326 | Ignition coil 8 with output stage |
| P | Spark plug connector |
| Q | Spark plugs |
| T4cg | 4-pin connector |
| T4ch | 4-pin connector |
| T10c | 10-pin connector, pink, electronics box engine compartment |
| T18 | 18-pin connector |
| T60 | 60-pin connector |
| T94 | 94-pin connector |
| 18 | Earth point on engine block |
| 131 | Earth connection 2, in engine compartment wiring harness |
| 201 | Earth connection 5, in engine compartment wiring harness |
| D51 | Positive connection 1 (15), in engine compartment wiring harness |
| D101 | Connection 1, in engine compartment wiring harness |
| F265 | Map-controlled engine cooling system thermostat |
| J623 | Engine control unit |
| N115 | Activated charcoal filter system solenoid valve 2 |
| N205 | Inlet camshaft control valve 1 |
| N208 | Inlet camshaft control valve 2 |
| N318 | Exhaust camshaft control valve 1 |
| N319 | Exhaust camshaft control valve 2 |
| T2ej | 2-pin connector |
| T2ek | 2-pin connector |
| T2em | 2-pin connector |
| T2eo | 2-pin connector |
| T2fu | 2-pin connector |
| T2ga | 2-pin connector |
| T6ma | 6-pin connector, white, on electronics box engine compartment |
| T10e | 10-pin connector, green, electronics box engine compartment |
| T10ma | 10-pin connector, black, electronics box engine compartment |
| T60 | 60-pin connector |
| T94 | 94-pin connector |
| E30 | Connection (87a), in engine wiring harness |
| * | not with all levels of equipment |
| G83 | Radiator outlet coolant temperature sender |
| G294 | Brake servo pressure sensor |
| G300 | Hall sender 3 |
| G410 | Fuel pressure sender for low pressure |
| J623 | Engine control unit |
| T2eh | 2-pin connector, black |
| T3cn | 3-pin connector |
| T3bm | 3-pin connector |
| T4bi | 4-pin connector |
| T10ma | 10-pin connector, black, electronics box engine compartment |
| T94 | 94-pin connector |
| D113 | Connection 11, in engine compartment wiring harness |
| D114 | Connection 12, in engine compartment wiring harness |
| D174 | Earth connection 2 (5V), in engine wiring harness |
| G186 | Throttle valve drive (electric power control) |
| G187 | Throttle valve drive angle sender 1 for electric throttle |
| G188 | Throttle valve drive angle sender 2 for electric throttle |
| G301 | Hall sender 4 |
| J623 | Engine control unit |
| J338 | Throttle valve module |
| T3bn | 3-pin connector |
| T6bs | 6-pin connector |
| T6ma | 6-pin connector, white, on electronics box engine compartment |
| T10ma | 10-pin connector, black, electronics box engine compartment |
| T60 | 60-pin connector |
| T94 | 94-pin connector |
| D114 | Connection 12, in engine compartment wiring harness |
| D174 | Earth connection 2 (5V), in engine wiring harness |
| F | Brake light switch |
| F47 | Brake pedal switch |
| J151 | Continued coolant circulation relay |
| J623 | Engine control unit |
| SB26 | Fuse 26 on fuse holder B |
| SB38 | Fuse 38 on fuse holder B |
| T6k | 6-pin connector, brown, electronics box engine compartment |
| T10c | 10-pin connector, pink, electronics box engine compartment |
| T10d | 10-pin connector, blue, electronics box engine compartment |
| T94 | 94-pin connector |
| B278 | Positive connection 2 (15a), in main wiring harness |
| B289 | Positive connection 13 (15a), in main wiring harness |
| B335 | Connection 1 (54), in main wiring harness |
| D78 | Positive connection 1 (30a), in engine compartment wiring harness |
| G39 | Lambda probe |
| G108 | Lambda probe 2 |
| J255 | Climatronic control unit |
| J623 | Engine control unit |
| J708 | Residual heat relay |
| SB2 | Fuse 2 on fuse holder B |
| T2ck | 2-pin connector, black |
| T6mb | 6-pin connector, black |
| T6md | 6-pin connector, brown |
| T14g | 14-pin connector, black |
| T94 | 94-pin connector |
| V55 | Circulation pump |
| 167 | Earth connection 4, in engine compartment wiring harness |
| 201 | Earth connection 5, in engine compartment wiring harness |
| 373 | Earth connection 8, in main wiring harness |
| 374 | Earth connection 9, in main wiring harness |
| 640 | Earth point, on left in engine compartment |
| D115 | Connection 13, in engine compartment wiring harness |
| * | only models with auxiliary heater (plenum) |
| G130 | Lambda probe after catalytic converter |
| G131 | Lambda probe 2 after catalytic converter |
| J527 | Steering column electronics control unit |
| J569 | Brake servo relay |
| J623 | Engine control unit |
| T2bj | 2-pin connector |
| T4bj | 4-pin connector, black |
| T4bk | 4-pin connector, brown |
| T10d | 10-pin connector, blue, electronics box engine compartment |
| T16a | 16-pin connector |
| T94 | 94-pin connector |
| V192 | Vacuum pump for brakes |
| 32 | Earth point, on left behind dash panel insert |
| 614 | Earth point 2, on right in engine compartment |
| D78 | Positive connection 1 (30a), in engine compartment wiring harness |
| D122 | Connection 20, in engine compartment wiring harness |
| G65 | High pressure sender |
| J293 | Radiator fan control unit |
| J623 | Engine control unit |
| J671 | Radiator fan control unit 2 |
| T3ac | 3-pin connector |
| T4be | 4-pin connector |
| T4bf | 4-pin connector |
| T10c | 10-pin connector, pink, electronics box engine compartment |
| T10d | 10-pin connector, blue, electronics box engine compartment |
| T10e | 10-pin connector, green, electronics box engine compartment |
| T94 | 94-pin connector |
| V7 | Radiator fan |
| V144 | Fuel system diagnostic pump |
| V177 | Radiator fan 2 |
| 12 | Earth point, on left in engine compartment |
| E7 | Connection (87a), in Motronic wiring harness |
| B385 | Connection 3 (drive train CAN bus, high), in main wiring harness |
| B392 | Connection 3 (drive train CAN bus, low), in main wiring harness |
| * | not with all levels of equipment |
| G | Fuel gauge sender |
| G6 | Fuel system pressurisation pump |
| G32 | Coolant shortage indicator sender |
| G169 | Fuel gauge sender 2 |
| J285 | Control unit in dash panel insert |
| J538 | Fuel pump control unit |
| K | Dash panel insert |
| T2c | 2-pin connector, black |
| T4ct | 4-pin connector |
| T4cu | 4-pin connector |
| T5x | 5-pin connector |
| T4af | 4-pin connector, black, tank connection left |
| T5k | 5-pin connector, black, right tank connection |
| T10c | 10-pin connector, pink, electronics box engine compartment |
| T32a | 32-pin connector, blue |
| 39 | Earth point, under rear left seat |
| 238 | Earth connection 1, in interior wiring harness |
| 410 | Earth connection 1 (sender earth), in main wiring harness |
| B584 | Positive connection 1 (87a), in interior wiring harness |
| F1 | Oil pressure switch |
| G266 | Oil level and oil temperature sender |
| J285 | Control unit in dash panel insert |
| K | Dash panel insert |
| T1ac | Single connector |
| T3bd | 3-pin connector |
| T6ma | 6-pin connector, white, on electronics box engine compartment |
| T10d | 10-pin connector, blue, electronics box engine compartment |
| T10f | 10-pin connector, red, electronics box engine compartment |
| T14n | 14-pin connector, black |
| T16b | 16-pin connector, self-diagnosis connection, driver footwell |
| T32a | 32-pin connector, blue |
| T32b | 32-pin connector, green |
| 32 | Earth point, on left behind dash panel insert |
| B344 | Connection 1 (61), in main wiring harness |
| B385 | Connection 3 (drive train CAN bus, high), in main wiring harness |
| B392 | Connection 3 (drive train CAN bus, low), in main wiring harness |
| B444 | Connection 1 (diagnosis), in main wiring harness |
| B509 | Connection 3 (diagnosis), in main wiring harness |
| D108 | Connection 6, in engine compartment wiring harness |
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