| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| J81 | Intake manifold preheating relay |
| J257 | Mono-Motronic control unit |
| N51 | Intake manifold preheating heater element |
| N80 | Activated charcoal filter system solenoid valve I (pulsed) |
| T1b | single connector, near battery |
| T1c | single connector, near intake manifold |
| T2 | 2-pin connector, behind relay plate |
| T12 | 12-pin connector, behind relay plate |
| T28a | 28-pin connector, on engine |
| T45 | 45-pin connector |
| 18 | Earth point, on engine block |
| E12 | Positive (+) connection -1- (15), in Mono-Motronic wiring harness |
| * | Only models with manual gearbox |
| Only models with automatic gearbox |
| F60 | Idling switch |
| F129 | Air conditioner pressure switch - vehicles with air conditioner only |
| G2 | Coolant temperature gauge sender |
| G62 | Coolant temperature sender |
| G127 | Throttle valve positioner sender |
| J257 | Mono-Motronic control unit |
| K84 | Air conditioning system warning lamp - vehicles with air conditioning system only |
| T2d | 2-pin connector, behind the relay plate |
| T12 | 12-pin connector, behind the relay plate |
| T28a | 28-pin connector, on engine |
| T45 | 45-pin connector |
| TV13 | Speed signal junction box, above the relay plate |
| V60 | Throttle valve positioner |
| 18 | Earth point, on cylinder block |
| 173 | Earth connection -1-, in Mono- Motronic wiring harness |
| 220 | Earth connection (sender earth), in engine wiring harness |
| 221 | Earth connection (engine earth), in engine wiring harness |
| 241 | Earth connection -2-, engine earth in engine wiring harness |
| D17 | Positive (+) connection -1- (15), in engine wiring harness |
| * | For manual gearbox only |
| For automatic gearbox only |
| G42 | Intake air temperature sender |
| G69 | Throttle valve potentiometer |
| J217 | Automatic gearbox control unit |
| J257 | Mono-Motronic control unit |
| J293 | Radiator fan control unit |
| J362 | Immobilizer control unit |
| N30 | Injector, cylinder 1 |
| T1 | Single connector, behind the relay plate |
| T1y | Single connector, behind the relay plate |
| T3f | 3-pin connector, behind dash panel |
| T12 | 12-pin connector, behind the relay plate |
| T28a | 28-pin connector, on engine |
| T45 | 45-pin connector |
| T68 | 68-pin connector |
| 220 | Earth connection (sender earth), in engine wiring harness |
| L41 | Connection (air conditioner on), in air conditioner/radiator fan wiring harness |
| * | For manual gearbox only |
| ** | Resistance wire |
| *** | Wiring from T68/50 to T28a/1, to 07.96 via T12/6, from 08.96 via T12/11 |
| For automatic gearbox only |
| G6 | Fuel pump (pre-supply pump) |
| G39 | Lambda probe |
| G40 | Hall sender |
| J17 | Fuel pump relay |
| J257 | Mono-Motronic control unit |
| K | Dash panel insert |
| N152 | Ignition transformer |
| N157 | Ignition transformer output stage |
| O | Ignition distributor |
| P | Spark plug connector |
| Q | Flame plug |
| T3a | 3-pin connector |
| T4 | 4-pin connector, near intake manifold |
| T28a | 28-pin connector, on engine |
| T45 | 45-pin connector |
| TV13 | Speed signal junction box, above the relay plate |
| 18 | Earth point, on cylinder block |
| 125 | Earth connection -3-, in headlight wiring harness |
| 221 | Earth connection (engine earth), in engine wiring harness |
| E13 | Positive (+) connection -2- (15), in Mono-Motronic wiring harness |
| * | For manual gearbox only |
| F1 | Oil pressure switch |
| F22 | Oil pressure switch (0.3 bar) |
| G8 | Oil temperature sender |
| G22 | Speedometer sender (Hall sender on gearbox) |
| T28a | 28-pin connector, on left cylinder head |
| 18 | Earth point, on cylinder block |
| 119 | Earth connection -1-, in headlight wiring harness |
| 241 | Earth connection -2-, engine earth in engine wiring harness |
| * | For manual gearbox only |
| For automatic gearbox only |
| E86 | Multi-function display call-up button |
| E109 | Multi-function display, memory switch |
| F18 | Radiator fan thermo-switch |
| G21 | Speedometer |
| J285 | Control unit with display in dash panel insert |
| L75 | Digital display illumination |
| T4h | 4-pin connector, behind steering column switch trim |
| T28 | 28-pin connector, on dash panel insert |
| V7 | Radiator fan |
| 125 | Earth connection -3-, in headlight wiring harness |
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