| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| J81 | Intake manifold preheating relay |
| J257 | Mono-Motronic control unit |
| N51 | Intake manifold preheating heater element |
| N80 | Activated charcoal filter system solenoid valve 1 (pulsed) |
| T1b | Single connector, near battery |
| T1c | 1-pin connector, near intake manifold |
| T2 | 2-pin connector, near starter |
| T10 | 10-pin connector, behind the relay plate |
| T28 | 28-pin connector, on dash panel insert |
| T28a | 28-pin connector, on engine |
| T45 | 45-pin connector |
| 18 | Earth point, on engine block |
| 119 | Earth connection 1, in headlight wiring harness |
| E11 | Positive connection (30), in Mono-Motronic wiring harness |
| E12 | Positive connection 1 (15), in wiring harness |
| * | only automatic gearbox |
| D | Ignition/starter switch |
| F60 | Idling speed switch |
| G2 | Coolant temperature display sender |
| G42 | Intake air temperature sender |
| G62 | Coolant temperature sender |
| G69 | Throttle valve potentiometer |
| G127 | Throttle valve positioner sender |
| J257 | Mono-Motronic control unit |
| J362 | Immobilizer control unit |
| K | Dash panel insert |
| N30 | Injector, cylinder 1 |
| T1 | Single connector, behind the relay plate |
| T1y | Single connector, behind the relay plate |
| T2n | 2-pin connector, behind the relay plate -connection air conditioning system- |
| T3f | 3-pin connector, behind the dash panel |
| T28 | 28-pin connector, on dash panel insert |
| T28a | 28-pin connector, on engine |
| T45 | 45-pin connector |
| TV13 | Speed signal wiring junction, above the relay plate |
| V60 | Throttle valve positioner |
| 18 | Earth point, on engine block |
| 173 | Earth connection 1, in Mono-Motronic wiring harness |
| 174 | Earth connection 2, in Mono-Motronic wiring harness |
| * | Resistance wire |
| G6 | Fuel 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 | Spark plugs |
| T3a | 3-pin connector |
| T4 | 4-pin connector, near intake manifold |
| T28 | 28-pin connector, on dash panel insert |
| T28a | 28-pin connector, on engine |
| T45 | 45-pin connector |
| 18 | Earth point, on engine block |
| 119 | Earth connection 1, in headlight wiring harness |
| 174 | Earth connection 2, in Mono-Motronic wiring harness |
| E13 | Positive connection 2 (15), in Mono-Motronic wiring harness |
| L41 | Connection (air conditioning system on), in air conditioning system/radiator fan wiring harness |
| E86 | Multifunction display call-up button |
| E109 | Multifunction display memory switch |
| F1 | Oil pressure switch |
| F22 | Oil pressure switch (0.3 bar) |
| G3 | Coolant temperature gauge |
| G8 | Oil temperature sender |
| G22 | Speedometer sender (Hall sender, on gearbox) |
| G32 | Coolant shortage indicator sender |
| K | Dash panel insert |
| T4b | 4-pin connector, behind steering column switch trim |
| T28 | 28-pin connector, on engine |
| T28a | 28-pin connector, on dash panel insert |
| 18 | Earth point, on engine block |
| 201 | Earth connection -5-, in engine compartment wiring harness |
