| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| F18 | Radiator fan thermal switch |
| J519 | Onboard power supply control unit |
| SA1 | Fuse -1- on battery fuse holder |
| SA2 | Fuse -2- on battery fuse holder |
| T12 | 12-Pin Connector, black |
| T28 | 28-Pin Connector, black |
| V7 | Radiator fan |
| 12 | Earth point, on left in engine compartment |
| 14 | Earth point, on gearbox |
| 179 | Earth connection, in left headlight wiring harness |
| A21 | Connection (86s), in dash panel wiring harness |
| A32 | Positive connection (30), in dash panel wiring harness |
| A80 | Connection -1- (X), in dash panel wiring harness |
| D2 | Connection (temperature control switch), in front right wiring harness |
| * | After Market only |
| G2 | Coolant temperature sender |
| G40 | Hall sender |
| G61 | Knock sensor I |
| G62 | Coolant temperature sender |
| J220 | Motronic control unit |
| J519 | Onboard power supply control unit |
| N152 | Ignition transformer |
| N157 | Ignition transformer output stage |
| O | Ignition distributor |
| P | Spark plug connector |
| Q | Spark plug |
| T3a | 3-Pin Connector, on engine block |
| T28 | 28-Pin Connector, black |
| T45 | 45-Pin Connector |
| 120 | Earth connection -2-, in headlight wiring harness |
| 330 | Earth connection -2-, in blower box wiring harness |
| A104 | Positive connection -2- (15), in dash panel wiring harness |
| F1 | Oil pressure switch |
| G | Fuel gauge sender |
| G5 | Rev. Counter |
| G21 | Speedometer |
| G22 | Speedometer sender (Hall sender on gearbox) |
| H3 | Buzzer/gong |
| J285 | Control unit with display in dash panel insert |
| J519 | Onboard power supply control unit |
| J533 | Data bus diagnostic interface |
| T8b | 8-Pin Connector, black, on instrument panel insert |
| T28 | 28-Pin Connector, black |
| T32 | 32-Pin Connector, green, on instrument panel insert |
| 12 | Earth point, on left in engine compartment |
| 135 | Earth connection -2-, in dash panel wiring harness |
| F2 | Door contact switch, driver side |
| F266 | Bonnet contact switch |
| H12 | Alarm horn |
| J379 | Central locking and anti-theft alarm system control unit |
| J519 | Onboard power supply control unit |
| T1 | Single connector, in Tailgate |
| T12a | 12-Pin Connector, black |
| T28a | 28-Pin Connector, black |
| W17 | Interior light, right |
| A5 | Positive connection (right turn signal), in dash panel wiring harness |
| A6 | Positive connection (left turn signal), in dash panel wiring harness |
| R4 | Connection -1-, in interior light/door contact switch wiring harness |
| S1 | Positive connection (30), in central locking wiring harness |
| F220 | Central locking lock unit, driver side |
| F221 | Central locking lock unit, front passenger side |
| J519 | Onboard power supply control unit |
| T4a | 4-Pin Connector, door A-pillar, right |
| T4b | 4-Pin Connector, door A-pillar, left |
| 33 | Earth point, on right behind dash panel |
| 81 | Earth connection -1-, in dash panel wiring harness |
| B133 | Connection (central locking open), in interior wiring harness |
| B134 | Connection (central locking closed), in interior wiring harness |
| F222 | Central locking lock unit, rear left |
| F223 | Central locking lock unit, rear right |
| G6 | Fuel pump (pre-supply pump) |
| J519 | Onboard power supply control unit |
| T4c | 4-Pin Connector, door B-pillar, right |
| T4d | 4-Pin Connector, door B-pillar, left |
| 50 | Earth point, on left luggage compartment |
| 218 | Earth connection -1-, in rear lid wiring harness |
| B133 | Connection (central locking open), in interior wiring harness |
| B134 | Connection (central locking closed), in interior wiring harness |
| E42 | Positive connection (30a), in injection system wiring harness |
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