| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| J207 | Starter inhibitor relay |
| J220 | Motronic control unit |
| J537 | 4LV control unit (injection system) |
| K2 | Alternator warning lamp |
| S162 | Fuse -1- (30), in fuse box |
| S163 | Fuse -2- (30), in fuse box |
| T5 | 5-pin connector |
| T10a | 10-pin connector, green, connector point under relay carrier |
| T10d | 10-pin connector, red, connector point under relay carrier |
| T10s | 10-pin connector, light green, connector point under relay carrier |
| 1 | Earth strap, battery - body |
| 500 | Screw connection -1- (30), on relay plate |
| 501 | Screw connection -2- (30), on relay plate |
| B169 | Positive (+) connection -1- (30), in interior wiring harness |
| * | Only engine codes AUD, AKK, AKP (T80/11) |
| ** | Only engine codes ARC (T121/13) and APE, AUA (T121/28) |
| F125 | Multi-function switch |
| J217 | Automatic gearbox control unit, in plenum chamber |
| J220 | Motronic control unit |
| J285 | Control unit with display in dash panel insert |
| J293 | Radiator fan control unit |
| J537 | 4LV control unit (injection system) |
| M16 | Reversing light bulb, left |
| M17 | Reversing light bulb, right |
| T10d | 10-pin connector, red, near relay station |
| T10g | 10-pin connector, brown, connector point under relay carrier |
| T10i | 10-pin connector, black |
| T28 | 28-pin connector, on gearbox |
| T68 | 68-pin connector, black |
| 14 | Earth point, on gearbox |
| A87 | Connection (RF (reversing light)), in dash panel wiring harness |
| B109 | Earth connection, in interior wiring harness, rear left |
| D106 | Connection -4-, in engine compartment wiring harness |
| --- | Only models with air conditioner |
| * | Only engine codes AHW (T80/8) and AUD, AKK, AKP (T80/42) |
| ** | Only engine codes ARC (T121/76) and AUA, APE (T121/41) |
| G68 | Vehicle speed sender |
| G93 | Gearbox oil temperature sender |
| J104 | ABS with EDL control unit |
| J217 | Automatic gearbox control unit |
| J220 | Motronic control unit |
| J285 | Control unit with display in dash panel insert |
| J533 | Data bus diagnostic interface control unit |
| J537 | 4LV control unit (injection system) |
| N88 | Solenoid valve 1 |
| N89 | Solenoid valve 2 |
| N90 | Solenoid valve 3 |
| N91 | Solenoid valve 4 |
| N92 | Solenoid valve 5 |
| N93 | Solenoid valve 6 |
| T8g | 8-pin connector, black |
| T10d | 10-pin connector, red |
| T10s | 10-pin connector, light green |
| T28 | 28-pin connector, black |
| T68 | 68-pin connector, black |
| 14 | Earth point, on gearbox |
| D89 | Connection (Control units), in engine compartment wiring harness |
| D159 | Connection (high bus), in engine compartment wiring harness |
| D160 | Connection (low bus), in engine compartment wiring harness |
| U3 | Connection -1-, in automatic gearbox wiring harness |
| * | Only engine codes AUA, APE |
| E20 | Switches and instruments |
| F | Brake light switch |
| G38 | Gearbox speed sender |
| J104 | ABS control unit, in engine compartment, left |
| J217 | Automatic gearbox control unit |
| K142 | Selector lever position P/N warning lamp |
| L101 | Selector lever display illumination |
| N110 | Selector lever lock solenoid |
| SB21 | Fuse -21- in fuse box |
| T10a | 10-pin connector, green |
| T10c | 10-pin connector, blue |
| T10e | 10-pin connector, light pink |
| T10s | 10-pin connector, light green |
| T16 | 16-pin connector, self-diagnosis connection |
| T28 | 28-pin connector, black |
| T68 | 68-pin connector, black |
| 10 | Earth point, in plenum chamber |
| 50 | Earth point, on left luggage compartment |
| 131 | Earth connection -2-, in engine compartment wiring harness |
| 277 | Earth connection -3-, in interior wiring harness |
| A4 | Positive (+) connection (58b), in dash panel wiring harness |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| A109 | Connection (selector lever function display), in dash panel wiring harness |
| D73 | Positive (+) connection (54), in engine compartment wiring harness |
| D136 | Positive (+) connection -2- (15a), in engine compartment wiring harness |
