| F60 | Idling switch |
| G69 | Throttle valve potentiometer |
| G88 | Throttle valve positioner potentiometer |
| J220 | Motronic control unit, left in engine compartment |
| J338 | Throttle valve control unit |
| N152 | Ignition transformer |
| P | Spark plug connector |
| Q | Flame plug |
| T5e | 5-pin connector |
| T8h | 8-pin connector, on throttle valve control unit |
| T68 | 68-pin connector, on Motronic control unit |
| V60 | Throttle valve positioner |
| 12 | Earth point, in engine compartment, left |
| G28 | Engine speed sender |
| G39 | Lambda probe |
| G40 | Hall sender |
| J220 | Motronic control unit, left in engine compartment |
| J362 | Immobilizer control unit, behind dash panel insert |
| T1l | Single connector |
| T1m | Single connector |
| T3g | 3-pin connector, near starter |
| T4 | 4-pin connector, near Lambda probe |
| T6 | 6-pin connector, on immobilizer control unit |
| T68 | 68-pin connector, on Motronic control unit |
| 138 | Earth connection (control unit), in Motronic wiring harness |
| G61 | Knock sensor I |
| G62 | Coolant temperature sender |
| G66 | Knock sensor II |
| G72 | Intake manifold temperature sender |
| J220 | Motronic control unit, left in engine compartment |
| T3d | 3-pin connector, near cylinder head cover |
| T3i | 3-pin connector, near cylinder head cover |
| T68 | 68-pin connector, on Motronic control unit |
| 138 | Earth connection (control unit), in Motronic wiring harness |
| 139 | Earth connection (sender earth), in Motronic wiring harness |
| A | Battery |
| G70 | Air mass meter |
| J220 | Motronic control unit, left in engine compartment |
| J299 | Secondary air pump relay, above relay plate |
| N18 | Exhaust gas recirculation valve |
| N80 | Activated charcoal filter system solenoid valve I (pulsed) |
| N112 | Secondary air inlet valve |
| S130 | Secondary air pump thermo-fuse, above relay plate |
| T68 | 68-pin connector, on Motronic control unit |
| TV13 | Speed signal junction box, above relay plate |
| V101 | Secondary air pump motor |
| 12 | Earth point, in engine compartment, left |
| 210 | Earth connection -1-, in Motronic wiring harness |
| 216 | Earth connection -2-, in Motronic wiring harness |
| E7 | Positive connection (87a), in Motronic wiring harness |
| F1 | Oil pressure switch |
| F22 | Oil pressure switch (0.3 bar) |
| F95 | Thermo-switch for coolant circulation run-on* |
| G2 | Coolant temperature sender |
| G22 | Speedometer sender (Hall sender on gearbox) |
| J151 | Continued coolant circulation relay |
| J220 | Motronic control unit, left in engine compartment |
| N79 | Heater element (crankcase breather) |
| T1c | Single connector, behind relay plate |
| T68 | 68-pin connector, on Motronic control unit |
| 18 | Earth point, on engine block |
| 216 | Earth connection -2-, in Motronic wiring harness |
| E6 | Positive (+) connection -1- (15), in Motronic wiring harness |
| * | Different components to be introduced gradually |
| G8 | Oil temperature sender |
| G17 | Ambient temperature sensor |
| G32 | Coolant shortage indicator sender |
| H11 | Oil pressure warning buzzer |
| J285 | Control unit with display in dash panel insert |
| K3 | Oil pressure warning lamp |
| K28 | Coolant temperature/coolant shortage warning lamp |
| T28 | 28-pin connector, on dash panel insert |
| 18 | Earth point, on engine block |
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| J271 | Motronic current supply relay |
| J285 | Control unit with display in dash panel insert |
| K2 | Alternator 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 |
| W15 | Interior light with switch-off delay |
| Y4 | Odometer display |
| E34 | Rear wiper switch (intermittent operation)* |
| E86 | Multi-function display call-up button |
| E109 | Multi-function display, memory switch |
| G21 | Speedometer |
| J30 | Rear window wiper/washer relay |
| J119 | Multi-function display |
| J285 | Control unit with display in dash panel insert |
| T4h | 4-pin connector, behind steering column switch trim (discontinued with T5) |
| T5 | 5-pin connector, behind steering column switch trim* (replaces T4h) |
| T28 | 28-pin connector |
| * | From May 1997, a modified intermittent circuit for the rear window wiper system is installed. |
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