| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| F95 | Thermo-switch for coolant circulation run-on |
| G2 | Coolant temperature sender |
| T1b | Single connector, behind relay plate |
| T2b | 2-pin connector, behind relay plate |
| T2e | 2-pin connector, near starter |
| TV15 | Wiring connector, behind relay plate |
| V51 | Continued coolant circulation pump |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| G | Fuel gauge sender |
| G27 | Engine temperature sender |
| G32 | Coolant shortage indicator sender |
| J52 | Glow plug relay |
| Q6 | Glow plugs - (engine) |
| S39 | Glow plug motor strip fuse, front left in engine compartment |
| T5 | 5-pin connector, near cylinder head cover |
| TV2 | Terminal 30 junction box |
| 16 | Earth point -1-, on cylinder head cover |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| D98 | Connection (glow plugs), in engine compartment wiring harness |
| F1 | Oil pressure switch |
| F22 | Oil pressure switch (0.3 bar) |
| G22 | Speedometer sender (Hall sender on gearbox) |
| J285 | Control unit with display in dash panel insert |
| J362 | Immobilizer control unit, behind dash panel insert |
| J366 | Fuel shut-off valve control unit |
| K3 | Oil pressure warning lamp |
| K28 | Coolant temperature/coolant shortage warning lamp |
| N79 | Heater element (crankcase breather) |
| N109 | Fuel shut-off valve |
| T1c | Single connector, behind relay plate |
| T2 | 2-pin connecctor, near fuel shut-off valve |
| T6 | 6-pin connector, on immobilizer control unit |
| T28 | 28-pin connector, on dash panel insert |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| D52 | Positive connection (15a), in engine compartment wiring harness |
| * | Cold climates only |
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| G21 | Speedometer |
| H11 | Oil pressure warning buzzer |
| J285 | Control unit with display in dash panel insert |
| K2 | Alternator warning lamp |
| K29 | Glow period warning lamp |
| L75 | Digital display illumination |
| R | Radio |
| T2x | 2-pin connector, behind relay plate |
| T8 | 8-pin connector, on radio |
| T16 | 16-pin connector, centre in dash panel -self-diagnosis connection for V.A.G. 1551- |
| T28 | 28-pin connector, on dash panel insert |
| Y4 | Odometer display |
| R6 | Positive connection -1-, in interior light wiring harness |
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