| A | Battery (00532) |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| J59 | X-contact relief relay |
| S10 | Fuse in relay plate fuse holder |
| 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 |
| S229 | Fuse on fuse holder |
| T2k | 2-pin connector, on engine |
| T4l | 4-pin connector, on engine |
| T6l | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
| 500 | Screw connection 1 (30), on relay plate |
| 501 | Screw connection 2 (30), on relay plate |
| 502 | Screw connection 1 (30a), on relay plate |
| A2 | Positive connection (15), in dash panel wiring harness |
| A32 | Positive connection (30), in dash panel wiring harness |
| A41 | Positive connection (50), in dash panel wiring harness |
| * | only models with air conditioning system |
| J220 | Motronic control unit |
| J317 | Terminal 30 voltage supply relay (01054) |
| 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 |
| T2nd | 2-pin connector |
| T4o | 4-pin connector |
| T4q | 4-pin connector |
| T4v | 4-pin connector |
| T4w | 4-pin connector |
| T6l | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
| 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 |
| A104 | Positive connection 2 (15), in dash panel wiring harness |
| D52 | Positive connection (15a), in engine compartment wiring harness |
| D78 | Positive connection 1 (30a), in engine compartment wiring harness |
| G2 | Coolant temperature display sender (01039) |
| G31 | Charge air pressure sender |
| G40 | Hall sender (00515-2113) |
| G62 | Coolant temperature display sender (00522-2312) |
| G266 | Oil level and oil temperature sender (00562) |
| J220 | Motronic control unit |
| T10d | 10-pin connector, green, in connector protective housing, on left in plenum chamber |
| T14a | 14-pin connector, in left wiring harness |
| T121 | 121-pin connector |
| 10 | Earth point, in plenum chamber |
| 85 | Earth connection 1, in engine compartment wiring harness |
| 220 | Earth connection (sender earth), in engine wiring harness |
| D133 | Connection (hall sender signal), in engine compartment wiring harness |
| * | models with engine code AJQ only |
| G28 | Engine speed sender (00513-2111) |
| G61 | Knock sensor 1 (00524-2142) |
| G66 | Knock sensor 2 (00540-2144) |
| J220 | Motronic control unit |
| J293 | Radiator fan control unit (00831) |
| T2r | 2-pin connector, on left of cylinder head |
| T2s | 2-pin connector, in rear engine compartment |
| T3b | 3-pin connector, on radiator fan |
| T10 | 10-pin connector, orange, in connector protective housing, on left in plenum chamber |
| T14 | 14-pin connector |
| T121 | 121-pin connector |
| 139 | Earth connection (sender earth), in Motronic wiring harness |
| 220 | Earth connection (sender earth), in engine wiring harness |
| * | only models with multifunction display |
| E35 | Air conditioning system switch |
| G42 | Intake air temperature sender (00523-2322) |
| 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 |
| J220 | Motronic control unit |
| J255 | Climatronic control unit (01320) |
| J293 | Radiator fan control unit (00831) |
| J338 | Throttle valve module (01165) |
| T6n | 6-pin connector |
| T8l | 8-pin connector |
| T10 | 10-pin connector, orange, in connector protective housing, on left in plenum chamber |
| T12e | 12-pin connector |
| T14 | 14-pin connector |
| T16b | 16-pin connector |
| T121 | 121-pin connector |
| 10 | Earth point, in plenum chamber |
| 131 | Earth connection 2, in engine compartment wiring harness |
| 220 | Earth connection (sender earth), in engine wiring harness |
| G70 | Air mass meter (00553-2324) |
| J220 | Motronic control unit |
| N30 | Injector for cylinders 1 (01249-4411) |
| N31 | Injector for cylinders 2 (01250-4412) |
| N32 | Injector for cylinders 3 (01251-4413) |
| N33 | Injector for cylinders 4 (01252-4414) |
| S232 | Fuse on fuse holder |
| 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 |
| T14a | 14-pin connector, in left wiring harness |
| T121 | 121-pin connector |
| B168 | Connection (86), in interior wiring harness |
| D95 | Connection (injectors), in engine compartment wiring harness |
| E30 | Connection (87a), in engine wiring harness |
| * | Wire W for self-diagnosis |
| G39 | Lambda probe (00525-2342) |
| G130 | Lambda probe after catalytic converter (00699) |
| J220 | Motronic control unit |
| N80 | Activated charcoal filter system solenoid valve 1 (pulsed) (01247-4343) |
| N112 | Secondary air inlet valve (01235-4313) |
| Z19 | Lambda probe heater |
| Z29 | Lambda probe 1 heater after catalytic converter |
| T4p | 4-pin connector, centre in engine compartment |
| T6q | 6-pin connector, on exhaust pipe |
| T10d | 10-pin connector, green, in connector protective housing, on left in plenum chamber |
| T121 | 121-pin connector |
| E30 | Connection (87a), in engine wiring harness |
| F88 | Power assisted steering pressure switch |
| G79 | Accelerator position sender |
| G185 | Accelerator position sender 2 |
| J104 | ABS control unit with EDL |
| J220 | Motronic control unit |
| J299 | Secondary air pump relay |
| V101 | Secondary air pump motor |
| T6m | 6-pin connector, on accelerator |
| T10d | 10-pin connector, green, in connector protective housing, on left in plenum chamber |
| T10h | 10-pin connector, blue, in connector protective housing, on left in plenum chamber |
| T25 | 25-pin connector |
| T47 | 47-pin connector |
| T121 | 121-pin connector |
| 10 | Earth point, in plenum chamber |
| A121 | Connection (high bus), in dash panel wiring harness |
| A122 | Connection (low bus), in dash panel wiring harness |
| D108 | Connection 6, in engine compartment wiring harness |
| D | Ignition/starter switch |
| F36 | Clutch pedal switch (00650) |
| J17 | Fuel pump relay (01259-4433) |
| J220 | Motronic control unit |
| J234 | Airbag control unit (01321) |
| N75 | Charge pressure control solenoid valve (01262-4442) |
| N205 | Inlet camshaft control valve 1 |
| N249 | Turbocharger air recirculation valve |
| T6l | 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 |
| T10d | 10-pin connector, green, in connector protective housing, on left in plenum chamber |
| T10h | 10-pin connector, blue, in connector protective housing, on left in plenum chamber |
| T75 | 75-pin connector, behind centre console |
| T121 | 121-pin connector |
| A20 | Connection (15a), in dash panel wiring harness |
| A27 | Connection (speed signal), in dash panel wiring harness |
| A125 | Connection (crash signal), in dash panel wiring harness |
| D102 | Connection 2 in engine compartment wiring harness |
| G | Fuel gauge sender (00771-3113) |
| G6 | Fuel system pressurisation pump |
| G32 | Coolant shortage indicator sender |
| G169 | Fuel gauge sender 2 |
| S228 | Fuse on fuse holder |
| S234 | Fuse on fuse holder |
| S243 | Fuse on fuse holder |
| T6l | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
| T14a | 14-pin connector, in left wiring harness |
| 81 | Earth connection 1, in dash panel wiring harness |
| 269 | Earth connection (sender earth) 1, in dash panel wiring harness |
| 504 | Screw connection 1 (87F), on relay plate |
| A99 | Connection 1 (87), in dash panel wiring harness |
| A100 | Connection 2 (87), in dash panel wiring harness |
| * | for models with engine code APP only |
| F1 | Oil pressure switch |
| G22 | Speedometer (01086) |
| H3 | Buzzer and gong (01023-3444) |
| J285 | Control unit with display in dash panel insert (01317) |
| K2 | Alternator warning lamp |
| K3 | Oil pressure warning lamp (00755) |
| K28 | Coolant temperature and coolant shortage warning lamp |
| K83 | Exhaust emissions warning lamp |
| K132 | Electric power control fault lamp |
| S7 | Fuse in relay plate fuse holder |
| T14a | 14-pin connector, in left wiring harness |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| B163 | Positive connection 1 (15), in interior wiring harness |
| * | only models with multifunction display |
| E86 | Multifunction display call-up button |
| E109 | Multifunction display memory switch |
| G1 | Fuel gauge (00664) |
| G3 | Coolant temperature gauge |
| G5 | Rev. counter (00662) |
| G21 | Speedometer (00663) |
| J119 | Multifunction display |
| J285 | Control unit with display in dash panel insert (01317) |
| K105 | Reserve fuel warning lamp (01082) |
| T5d | 5-pin connector, brown, coupling station, C-pillar left |
| T6d | 6-pin connector |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| A13 | Connection (door contact switch), in dash panel wiring harness |
| A27 | Connection (speed signal), in dash panel wiring harness |
| * | only models with multifunction display |
| ** | Wire W for self-diagnosis |
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