| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| J59 | X contact relief relay |
| J226 | Starter inhibitor and reversing light relay |
| T1f | 1-pin connector, near starter |
| TV23 | Push-in bridge |
| 1 | Earth strap, battery - body |
| 2 | Earth strap, gearbox - body |
| 238 | Earth connection -1-, in interior wiring harness |
| 249 | Earth connection -2-, in interior wiring harness |
| B138 | Positive (+) connection (X), in interior wiring harness |
| B170 | Positive (+) connection -2- (30), in interior wiring harness |
| B171 | Positive (+) connection -3- (30), in interior wiring harness |
| B172 | Positive (+) connection -4- (30), in interior wiring harness |
| B177 | Connection (61), in interior wiring harness |
| B201 | Positive (+) connection -4- (X), in interior wiring harness |
| --- | Only models with automatic gearbox |
| * | Only models with manual gearbox |
| D | Ignition/starter switch |
| E19 | Parking light switch |
| J17 | Fuel pump relay |
| S102 | Engine control unit fuse, No. 13 in fuse box |
| S201 | Fuse -3- (15), No. 4 in fuse box |
| S203 | Fuse -5- (15), No. 32 in fuse box |
| S206 | Fuse -3- (30), No. 14 in fuse box |
| S215 | Fuses (SU), No. 25 in fuse box |
| S216 | Fuses (50), No. 26 in fuse box |
| T10 | 10-pin connector, on column switch trim |
| TV23 | Push-in bridge |
| B146 | Positive (+) connection -1- (87), in interior wiring harness |
| B158 | Connection (S), in interior wiring harness |
| B163 | Positive (+) connection -1- (15), in interior wiring harness |
| B169 | Positive (+) connection -1- (30), in interior wiring harness |
| B235 | Positive (+) connection -4- (15a), in interior wiring harness |
| B236 | Positive (+) connection -6- (30a), in interior wiring harness |
| D51 | Positive (+) connection -1- (15), in engine compartment wiring harness |
| --- | Only models with automatic gearbox |
| * | Only models with manual gearbox |
| G | Fuel gauge sender |
| G6 | Fuel pump |
| J220 | Motronic control unit, behind the dash panel, left |
| J234 | Airbag control unit, behind console |
| J491 | Fuel shut-off control unit (Crash) |
| N152 | Ignition transformer |
| P | Spark plug connector |
| Q | Spark plug |
| T4f | 4-pin connector, above multi-funcion unit entwined in wiring harness |
| T5e | 5-pin connector |
| T42 | 42-pin connector, on engine left |
| T50 | 50-pin connector, on airbag control unit |
| T68 | 68-pin connector |
| 32 | Earth point, behind dash panel, left |
| 35 | Earth point, under front passenger's seat |
| 137 | Earth connection (end stage), in Motronic wiring harness |
| 295 | Earth connection -10-, in interior wiring harness |
| 296 | Earth connection -11-, in interior wiring harness |
| B146 | Positive (+) connection -1- (87), in interior wiring harness |
| B228 | Connection (crash signal), in interior wiring harness |
| J220 | Motronic control unit, behind the dash panel, left |
| N18 | Exhaust gas recirculation valve |
| N30 | Injector, cylinder 1 |
| N31 | Injector, cylinder 2 |
| N32 | Injector, cylinder 3 |
| N33 | Injector, cylinder 4 |
| N83 | Injector, cylinder 5 |
| N84 | Injector, cylinder 6 |
| T10c | 10-pin connector, near battery |
| T42 | 42-pin connector, on engine left |
| T68 | 68-pin connector |
| B178 | Connection (speed signal), in interior wiring harness |
| G3 | Positive (+) connection in cable sleeve - injectors |
| --- | Only models with automatic gearbox |
| G39 | Lambda probe |
| G40 | Hall sender |
| J44 | Magnetic coupling relay |
| J220 | Motronic control unit, behind the dash panel, left |
| J226 | Starter inhibitor and reversing light relay |
| J255 | Climatronic control unit |
| T4 | 4-pin connector, near lambda probes |
| T28c | 28-pin connector, (red), on climatronic control unit |
| T42 | 42-pin connector, on engine left |
| T68 | 68-pin connector |
| TV23 | Push-in bridge |
| 138 | Earth connection (control unit), in Motronic wiring harness |
| --- | Only models with automatic gearbox |
| * | Only models with manual gearbox |
| G28 | Engine speed sender |
| G61 | Knock sensor I |
| G66 | Knock sensor II |
| J220 | Motronic control unit, behind the dash panel, left |
| J362 | Immobilizer control unit, behind the dash panel, left |
| T3d | 3-pin connector, near cylinder head cover |
| T3g | 3-pin connector, near starter |
| T3i | 3-pin connector, near cylinder head cover |
| T8b | 8-pin connector, on immobilizer control unit |
| T16 | 16-pin connector, behind ashtray housing cover, self-diagnosis connection |
| T68 | 68-pin connector |
| 138 | Earth connection (control unit), in Motronic wiring harness |
| 139 | Earth connection (sender earth), in Motronic wiring harness |
| B159 | Connection (diagnostic), in interior wiring harness |
| G70 | Air mass meter |
| J220 | Motronic control unit, behind the dash panel, left |
| J299 | Secondary air pump relay |
| N80 | Activated charcoal filter system solenoid valve I (pulsed) |
| N112 | Secondary air inlet valve |
| S130 | Secondary air pump fuse, the lower relay carrier of the multi-funcion unit |
| T68 | 68-pin connector |
| V101 | Secondary air pump motor |
| 12 | Earth point, in engine compartment, left - below the battery |
| 13 | Earth point, in engine compartment, right |
| 137 | Earth connection (end stage), in Motronic wiring harness |
| E7 | Positive (+) connection (87a), in Motronic wiring harness |
| G62 | Coolant temperature sender |
| G72 | Intake manifold temperature sender |
| G98 | Exhaust gas recirculation temperature sensor |
| J138 | Radiator fan run-on control unit |
| J220 | Motronic control unit, behind the dash panel, left |
| J270 | Diode for continued circulation of coolant |
| N79 | Heater element (crankcase breather) |
| S213 | Fuse -3- (X), No. 28 in fuse box |
| T42 | 42-pin connector, on engine left |
| T68 | 68-pin connector |
| V51 | Continued circulation of coolant pump |
| 15 | Earth point, on cylinder head |
| 32 | Earth point, behind dash panel, left |
| 84 | Earth connection, engine block, in front right wiring harness |
| 220 | Earth connection (sender earth), in engine wiring harness |
| B206 | Positive (+) connection -5- (X), in interior wiring harness |
| D52 | Positive (+) connection (15a), in engine compartment wiring harness |
| D90 | Connection (engine speed signal), in engine compartment wiring harness |
| D107 | Connection -5-, in engine compartment wiring harness |
| --- | Only models with automatic gearbox |
| * | Only models with manual gearbox |
| F1 | Oil pressure switch |
| F22 | Oil pressure switch (0.3 bar) |
| F87 | Fan run-on thermo-switch |
| G2 | Coolant temperature sender |
| G22 | Speedometer sender (Hall sender on gearbox) |
| J138 | Radiator fan run-on control unit |
| T42 | 42-pin connector, on engine left |
| 15 | Earth point, on cylinder head |
| 84 | Earth connection, engine block, in front right wiring harness |
| D17 | Positive (+) connection -1- (15), in engine compartment wiring harness |
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| G8 | Oil temperature sender |
| G17 | Ambient temperature sensor |
| 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 |
| T28a | 28-pin connector |
| T42 | 42-pin connector, on engine left |
| --- | Only models with automatic gearbox |
| * | Only models with manual gearbox |
| G5 | Rev. counter |
| G21 | Speedometer |
| G32 | Coolant shortage indicator sender |
| J285 | Control unit with display in dash panel insert |
| K2 | Alternator warning lamp |
| L75 | Digital display illumination |
| S208 | Fuse -5- (30), No. 19 in fuse box |
| T28 | 28-pin connector |
| T42 | 42-pin connector, on engine left |
| Y4 | Odometer display |
| 15 | Earth point, on cylinder head |
| 201 | Earth connection -5-, in engine compartment wiring harness |
| 285 | Earth connection -7-, in interior wiring harness |
| B156 | Positive (+) connection (30a), in interior wiring harness |
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