| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| F18 | Radiator fan thermal switch |
| S162 | Fuse -1- (30), in fuse holder on the battery |
| S180 | Fuse -8- (30), in fuse holder on the battery |
| T1a | 1-pin connector, at starter |
| T2v | 2-pin connector, at alternator |
| T2w | 2-pin connector, in the holder on the gearbox |
| T3h | 3-pin connector, at radiator fan thermal switch |
| T3i | 3-pin connector, in the holder on the left radiator |
| T6n | 6-pin connector, at front wall, left (blue) |
| T8a | 8-pin connector, at ignition/starter switch |
| T11a | 11-pin connector, at front wall, left (white) |
| T18a | 18-pin connector, on the onboard power supply control unit (brown) |
| V7 | Radiator fan |
| 12a | Earth point -2-, on left in engine compartment, below the battery (at longitudinal member) |
| A41 | Positive connection (50), in wiring harness behind dash panel |
| P1 | Positive connection (30), in fuse holder on the battery |
| * | depending upon optional equipment |
| ** | not valid for vehicles with automatic gearbox |
| Thermal switch and radiator fan depending upon optional equipment (not valid for vehicles with air conditioning system) |
| G28 | Engine speed sender |
| G62 | Coolant temperature sender |
| G212 | Exhaust gas recirculation potentiometer |
| J537 | 4LV control unit |
| N18 | Exhaust gas recirculation valve |
| N30 | Injector, cylinder 1 |
| N31 | Injector, cylinder 2 |
| N32 | Injector, cylinder 3 |
| N33 | Injector, cylinder 4 |
| T2a | 2-pin connector, at injector, cylinder 1 |
| T2b | 2-pin connector, at injector, cylinder 2 |
| T2c | 2-pin connector, at injector, cylinder 3 |
| T2d | 2-pin connector, at injector, cylinder 4 |
| T2y | 2-pin connector, at coolant temperature sender |
| T3m | 3-pin connector, at engine speed sender |
| T6a | 6-pin connector, at exhaust gas recirculation valve |
| T10d | 10-pin connector, on left in engine compartment (connection engine prewiring wiring harness/engine compartment wiring harness) |
| T40a | 40-pin connector, at engine control unit |
| 220 | Earth connection (sender earth), in engine wiring harness |
| D140 | Connection (injectors), in engine wiring harness |
| D141 | Connection (5V), in engine wiring harness |
| G39 | Lambda probe |
| G71 | Intake manifold pressure sender |
| G72 | Intake manifold temperature sender |
| G130 | Lambda probe after catalytic converter |
| J537 | 4LV control unit |
| N80 | Activated charcoal filter system solenoid valve |
| T2z | 2-pin connector, at activated charcoal filter system solenoid valve |
| T4g | 4-pin connector, at intake manifold pressure sender and intake manifold temperature sender |
| T4k | 4-pin connector, near lambda probe after catalytic converter |
| T6z | 6-pin connector, near lambda probe |
| T11a | 11-pin connector, at front wall, left (white) |
| T11b | 11-pin connector, at front wall, left (red) |
| T40a | 40-pin connector, at engine control unit |
| T81a | 81-pin connector, at engine control unit |
| Z19 | Lambda probe heater |
| Z29 | Lambda probe heater after catalytic converter |
| 220 | Earth connection (sender earth), in engine wiring harness |
| A130 | Connection (GRA), in wiring harness behind dash panel, left |
| D141 | Connection (5V), in engine wiring harness |
| E28 | Connection (lambda probe heating), in engine compartment wiring harness |
| only on vehicles with GRA |
| F | Brake light switch |
| F36 | Clutch pedal switch |
| F47 | Brake pedal switch |
| G79 | Accelerator pedal position sender |
| G185 | Accelerator pedal position sender -2- |
| J537 | 4LV control unit |
| SB2 | Fuse, in fuse holder |
| T4d | 4-pin connector, at brake pedal switch |
| T4h | 4-pin connector, at clutch pedal switch |
| T6n | 6-pin connector, at front wall, left (blue) |
| T6u | 6-pin connector, at accelerator pedal position sender |
| T11c | 11-pin connector, at front wall, left (blue) |
| T81a | 81-pin connector, at engine control unit |
| A18 | Connection (54), in wiring harness behind dash panel |
| A100 | Connection (87a), in wiring harness behind dash panel |
| D73 | Connection (54), in engine compartment wiring harness, right |
| D101 | Connection (brake pedal switch), in engine compartment wiring harness |
| * | not valid for vehicles with automatic gearbox |
| G61 | Knock sensor I |
| G163 | Camshaft position sender |
| J537 | 4LV control unit |
| T2e | 2-pin connector, at knock sensor I |
| T3j | 3-pin connector, at camshaft position sender |
| T6n | 6-pin connector, at front wall, left (blue) |
| T11b | 11-pin connector, at front wall, left (red) |
| T40a | 40-pin connector, at engine control unit |
| T81a | 81-pin connector, at engine control unit |
| 29 | Earth point, on left in engine compartment, behind the battery (on suspension strut mount) |
| 131 | Earth connection -2-, in engine compartment wiring harness |
| 200 | Earth connection (screening), in engine prewiring wiring harness |
| 220 | Earth connection (sender earth), in engine wiring harness |
| A76 | Connection (diagnosis wire K), in wiring harness behind dash panel, left |
| D141 | Connection (5V), in engine wiring harness |
| D166 | Connection (K diagnosis wire), in engine compartment wiring harness |
| G187 | Throttle valve drive angle sender -1- (electric power control) |
| G188 | Throttle valve drive angle sender -2- (electric power control) |
| J338 | Throttle valve control unit |
| J537 | 4LV control unit |
| N152 | Ignition transformer |
| P | Spark plug connector |
| Q | Spark plug |
| T4f | 4-pin connector, at ignition transformer |
| T6t | 6-pin connector, on the throttle valve control unit |
| T10d | 10-pin connector, on left in engine compartment (connection engine prewiring wiring harness/engine compartment wiring harness) |
| T11a | 11-pin connector, at front wall, left (white) |
| T40a | 40-pin connector, at engine control unit |
| T81a | 81-pin connector, at engine control unit |
| V60 | Throttle valve positioner |
| 131 | Earth connection -2-, in engine compartment wiring harness |
| A121 | Connection (CAN H), in wiring harness behind dash panel |
| A122 | Connection (CAN L), in wiring harness behind dash panel |
| D159 | Connection (CAN H), in engine compartment wiring harness |
| D160 | Connection (CAN L), in engine compartment wiring harness |
| J17 | Fuel pump relay |
| T6n | 6-pin connector, at front wall, left (blue) |
| T6r | 6-pin connector, at front wall, left (brown) |
| T10d | 10-pin connector, on left in engine compartment (connection engine prewiring wiring harness/engine compartment wiring harness) |
| T11b | 11-pin connector, at front wall, left (red) |
| 199 | Earth connection, in wiring harness behind dash panel |
| A1 | Positive connection (30a), in wiring harness behind dash panel |
| A2 | Positive connection (15), in wiring harness behind dash panel |
| A26 | Connection (door contact switch, front left), in wiring harness behind dash panel |
| A32 | Positive connection (30a), in wiring harness behind dash panel |
| A99 | Connection (87), in wiring harness behind dash panel |
| D52 | Positive connection (15a), in engine compartment wiring harness |
| * | valid up to 01.00 |
| ** | valid as of 02.00 |
| F1 | Oil pressure switch |
| G | Fuel gauge sender |
| G1 | Fuel gauge |
| G6 | Fuel pump |
| G21 | Speedometer |
| G22 | Speedometer sender |
| J285 | Control unit in dash panel insert |
| K | Dash panel insert |
| K3 | Oil pressure warning lamp |
| K83 | Exhaust emissions warning lamp |
| K105 | Reserve fuel warning lamp |
| K132 | Electronic power control fault lamp |
| T1b | 1-pin connector, at oil pressure switch |
| T3l | 3-pin connector, at speedometer sender |
| T4j | 4-pin connector, on the fuel pump |
| T6v | 6-pin connector, at front wall, left (green) |
| T10d | 10-pin connector, on left in engine compartment (connection engine prewiring wiring harness/engine compartment wiring harness) |
| T11a | 11-pin connector, at front wall, left (white) |
| T11b | 11-pin connector, at front wall, left (red) |
| T32a | 32-pin connector, at dash panel insert |
| Y4 | Odometer display |
| 199 | Earth connection, in wiring harness behind dash panel |
| 269 | Earth connection (sender earth) -1-, in wiring harness behind dash panel |
| 327 | Earth connection (sender earth), in engine compartment wiring harness |
| A2 | Positive connection (15), in wiring harness behind dash panel |
| A27 | Connection (speed signal), in wiring harness behind dash panel |
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