| A | Battery |
| B | Starter |
| D | Ignition/starter switch |
| SA1 | Fuse -1- on battery fuse box |
| SA2 | Fuse -2- on battery fuse box |
| SA3 | Fuse -3- on battery fuse box |
| SA4 | Fuse -4- on battery fuse box |
| SA5 | Fuse -5- on battery fuse box |
| SA6 | Fuse -6- on battery fuse box |
| SA7 | Fuse -7- on battery fuse box |
| SA8 | Fuse -8- on battery fuse box |
| T3e | 3-pin connector, on battery fuse box |
| T5d | 5-pin connector, in engine compartment, near gearbox |
| T10a | 10-pin connector, black, coupling station under relay carrier, left |
| TV2 | Terminal 30 wiring junction |
| 1 | Earth strap, battery - body |
| 2 | Earth strap, gearbox - body |
| 500 | Screw connection -1- (30), on relay plate |
| 502 | Screw connection -1- (30a), on relay plate |
| A2 | Positive (+) connection (15), in dash panel wiring harness |
| A32 | Positive (+) connection (30), in dash panel wiring harness |
| * | Only models with airbags |
| C | Alternator |
| C1 | Voltage regulator |
| J537 | 4LV control unit (injection system) |
| N152 | Ignition transformer |
| P | Spark plug connector |
| Q | Spark plugs |
| SB34 | Fuse -34- on fuse box |
| SB37 | Fuse -37- on fuse box |
| T4m | 4-pin connector, yellow, on ignition transformer |
| T5d | 5-pin connector, in engine compartment, near gearbox |
| T5f | 5-pin connector, in engine compartment |
| T10f | 10-pin connector, purple, coupling station under relay carrier, left |
| T10g | 10-pin connector, red, coupling station under relay carrier, left |
| T14a | 14-pin connector, in engine compartment |
| T121 | 121-pin connector |
| 241 | Earth connection -2-, engine earth, in engine wiring harness |
| 607 | Earth point, on left in plenum chamber |
| G79 | Accelerator pedal position sender |
| G185 | Accelerator pedal position sender -2- |
| G186 | Throttle valve drive (electric throttle operation) |
| G187 | Throttle valve drive angle sender -1- (electric throttle operation) |
| G188 | Throttle valve drive angle sender -2- (electric throttle operation) |
| J104 | ABS with EDL control unit |
| J217 | Automatic gearbox control unit |
| J338 | Throttle valve control unit |
| J537 | 4LV control unit (injection system) |
| T5g | 5-pin connector, pink, coupling station under relay carrier, left |
| T6e | 6-pin connector, near accelerator pedal position sender |
| T14a | 14-pin connector, in engine compartment |
| T25 | 25-pin connector |
| T68 | 68-pin connector |
| T121 | 121-pin connector |
| D159 | Connection (high bus), in interior wiring harness |
| D160 | Connection (low bus), in engine compartment wiring harness |
| * | Depends on equipment |
| G2 | Coolant temperature sender |
| G40 | Hall sender |
| G42 | Intake air temperature sender |
| G62 | Coolant temperature sender |
| G71 | Intake manifold pressure sender |
| J537 | 4LV control unit (injection system) |
| T5f | 5-pin connector, in engine compartment |
| T10c | 10-pin connector, brown, coupling station under relay carrier, left |
| T14 | 14-pin connector, in engine compartment |
| T121 | 121-pin connector |
| 132 | Earth connection -3-, in engine compartment wiring harness |
| 220 | Earth connection (sender earth), in engine wiring harness |
| A27 | Connection (speed signal), in dash panel wiring harness |
| D101 | Connection -1-, in engine compartment wiring harness |
| G28 | Engine speed sender |
| G61 | Knock sensor I |
| G212 | Exhaust gas recirculation potentiometer |
| J537 | 4LV control unit (injection system) |
| N121 | Exhaust gas recirculation frequency valve |
| SB30 | Fuse -30- on fuse box |
| T2h | 2-pin connector, near knock sensor I |
| T3d | 3-pin connector, near engine speed sender |
| T10e | 10-pin connector, green, coupling station under relay carrier, left |
| T14 | 14-pin connector, in engine compartment |
| T121 | 121-pin connector |
| 132 | Earth connection -3-, in engine compartment wiring harness |
| A20 | Connection (15a), in dash panel wiring harness |
| D101 | Connection -1-, in engine compartment wiring harness |
| J362 | Immobilizer control unit |
| J537 | 4LV control unit (injection system) |
| N30 | Injector, cylinder 1 |
| N31 | Injector, cylinder 2 |
| N32 | Injector, cylinder 3 |
| N33 | Injector, cylinder 4 |
| SB3 | Fuse -3- on fuse box |
| SB31 | Fuse -31- on fuse box |
| T5f | 5-pin connector, in engine compartment |
| T10a | 10-pin connector, black, coupling station under relay carrier, left |
| T10c | 10-pin connector, brown, coupling station under relay carrier, left |
| T10f | 10-pin connector, purple, coupling station under relay carrier, left |
| T10x | 10-pin connector, on immobilizer control unit |
| T14a | 14-pin connector, in engine compartment |
| T121 | 121-pin connector |
| 44 | Earth point, lower part of left A-pillar |
| D95 | Connection (injectors), in engine compartment wiring harness |
| E9 | Fresh air blower switch |
| E35 | Air conditioner switch |
| G39 | Lambda probe |
| G130 | Lambda probe after catalyst |
| J293 | Radiator fan control unit |
| J537 | 4LV control unit (injection system) |
| N80 | Activated charcoal filter system solenoid valve 1 (pulsed) |
| SB1 | Fuse -1- on fuse box |
| T4e | 4-pin connector, near lambda probe |
| T5h | 5-pin connector, brown, coupling station under relay carrier, left |
| T6k | 6-pin connector, near lambda probe |
| T10e | 10-pin connector, green, coupling station under relay carrier, left |
| T10t | 10-pin connector, coupling station under relay carrier, left |
| T14b | 14-pin connector, on radiator fan control unit |
| T121 | 121-pin connector |
| Z19 | Lambda probe heater |
| Z29 | Lambda probe 1 heater, after catalyst |
| D61 | Connection (air conditioner), in engine compartment wiring harness |
| D80 | Positive (+) connection (87a - for activated charcoal filter system solenoid valve), in engine compartment wiring harness |
| L5 | Connection -1-, in air conditioner wiring harness |
| * | Only models with air conditioner |
| F | Brake light switch |
| F36 | Clutch pedal switch |
| F63 | Brake pedal switch |
| J104 | ABS with EDL control unit |
| J537 | 4LV control unit (injection system) |
| M9 | Brake light bulb, left |
| M10 | Brake light bulb, right |
| M25 | High level brake light bulb |
| SB15 | Fuse -15- on fuse box |
| SB24 | Fuse -24- on fuse box |
| T10a | 10-pin connector, black, coupling station under relay carrier, left |
| T10f | 10-pin connector, purple, coupling station under relay carrier, left |
| T10g | 10-pin connector, red, coupling station under relay carrier, left |
| T121 | 121-pin connector |
| D52 | Positive (+) connection (15a), in engine compartment wiring harness |
| D73 | Positive (+) connection (54), in engine compartment wiring harness |
| D106 | Connection -4-, in engine compartment wiring harness |
| D109 | Connection -7-, in engine compartment wiring harness |
| J17 | Fuel pump relay |
| J234 | Airbag control unit |
| J491 | Fuel shut-off control unit (crash) |
| J537 | 4LV control unit (injection system) |
| SB36 | Fuse -36- on fuse box |
| T10f | 10-pin connector, purple, coupling station under relay carrier, left |
| T50 | 50-pin connector, on airbag control unit |
| T121 | 121-pin connector, on Motronic control unit |
| 45 | Earth point, behind dash panel - centre |
| 109 | Earth connection, in airbag wiring harness |
| A98 | Positive (+) connection -4- (30), in dash panel wiring harness |
| A99 | Connection -1- (87), in dash panel wiring harness |
| A100 | Connection -2- (87), in dash panel wiring harness |
| A125 | Connection (crash signal), in dash panel wiring harness |
| * | Only models with airbags |
| ** | Only models without airbags |
| *** | Does not apply to models with driver airbag , without window lifter |
| F18 | Radiator fan thermo-switch |
| F22 | Oil pressure switch (0,3 bar) |
| G | Fuel gauge sender |
| G6 | Fuel pump (pre-supply pump) |
| G22 | Speedometer sender (Hall sender, on gearbox) |
| SB28 | Fuse -28- on fuse box |
| SB40 | Fuse -40- on fuse box |
| T3b | 3-pin connector, on radiator fan |
| T6b | 6-pin connector, grey, coupling station under relay carrier, left |
| T10c | 10-pin connector, brown, coupling station under relay carrier, left |
| T10e | 10-pin connector, green, coupling station under relay carrier, left |
| T10i | 10-pin connector, orange, coupling station under relay carrier, left |
| T14 | 14-pin connector, in engine compartment |
| T14a | 14-pin connector, in engine compartment |
| V7 | Radiator fan |
| 12 | Earth point, left in engine compartment |
| 50 | Earth point, on left luggage compartment |
| 269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
| 608 | Earth point, in centre of plenum chamber |
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| G5 | Rev. counter |
| G21 | Speedometer |
| G32 | Coolant shortage indicator sender |
| 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 |
| K105 | Reserve fuel warning lamp |
| T10e | 10-pin connector, green, coupling station under relay carrier, left |
| T10f | 10-pin connector, purple, coupling station under relay carrier, left |
| T10g | 10-pin connector, red, coupling station under relay carrier, left |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| Y4 | Odometer display |
| 179 | Earth connection, in left headlight wiring harness |
| 608 | Earth point, in centre of plenum chamber |
| * | Output for signal earth |
| J285 | Control unit with display in dash panel insert |
| J533 | Data bus diagnostic interface |
| K2 | Alternator warning lamp |
| SB16 | Fuse -16- on fuse box |
| T10b | 10-pin connector, white, coupling station under relay carrier, left |
| T10f | 10-pin connector, purple, coupling station under relay carrier, left |
| T10g | 10-pin connector, red, coupling station under relay carrier, left |
| T16 | 16-pin connector, diagnostic connector |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| 45 | Earth point, behind dash panel - centre |
| 81 | Earth connection -1-, in dash panel wiring harness |
| A21 | Connection (86s), in dash panel wiring harness |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
