| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| E1 | Lighting switch |
| E19 | Parking light switch |
| J59 | X contact relief relay |
| T10 | 10-pin connector, green, connector point |
| T14b | 14-pin connector, on engine |
| TV2 | Terminal 30 junction box |
| 1 | Earth strap, battery - body |
| 2 | Earth strap, gearbox - body |
| 61 | Earth point, left C-pillar |
| A32 | Positive (+) connection (30), in dash panel wiring harness |
| A40 | Positive (+) connection -1- (30), in dash panel wiring harness |
| A61 | Positive (+) connection (X), in dash panel wiring harness |
| B102 | Earth connection, in front left interior wiring harness |
| * | Only models with additional heater |
| ** | Only models without additional heater |
| G28 | Engine revolution sender (00513-2111) |
| G81 | Fuel temperature sender (00539-2311) |
| J234 | Airbag control unit (01321) |
| J248 | Direct injection diesel control unit |
| J362 | Immobilizer control unit |
| J491 | Fuel cut-off control unit (collision) |
| SB15 | Fuse -15- in fuseholder |
| SB32 | Fuse -32- in fuseholder |
| T10a | 10-way connector, red, in the wiring harness interconnection |
| T10b | 10-way connector, blue, in the wiring harness interconnection |
| 76 | Earth point, near gearbox control |
| 81 | Earth connection -1-, instrument panel wiring harness |
| A2 | Positive connection (15), instrument panel wiring harness |
| A52 | Positive connection -2- (30), instrument panel wiring harness |
| A104 | Positive connection -2- (15), instrument panel wiring harness |
| A125 | Connection (impact signal), instrument panel wiring harness |
| F27 | Connection (screened), in the direct injection diesel wiring harness |
| * | Only vehicles with airbag |
| ** | Only vehicles without airbag |
| *** | W auto-diagnosis line |
| G2 | Coolant temperature sender (01039) |
| G62 | Coolant temperature sender (00522-2312) |
| G71 | Engine revolution sender (00519-2222) |
| G72 | Engine revolution sender (00527-2412) |
| J17 | Fuel pump relay (01259-4433) |
| J248 | Direct injection diesel control unit |
| N18 | Exhaust gas recirculation valve (01265-4312) |
| N75 | Supercharging pressure limiter electro-valve (01262-4442) |
| SB24 | Fuse -24- in fuseholder |
| SB40 | Fuse -40- in fuseholder |
| T10 | 10-way connector, green, in the wiring harness interconnection |
| T10a | 10-way connector, red, in the wiring harness interconnection |
| T14b | 14-way connector, in the engine |
| G70 | Air mass meter |
| J248 | Diesel direct injection system control unit |
| N240 | Unit injector solenoid valve, No. 1 cyl. |
| N241 | Unit injector solenoid valve, No. 2 cyl. |
| N242 | Unit injector solenoid valve, No. 3 cyl. |
| SB37 | Fuse -37- in fuse box |
| T8b | 8-pin connector |
| T10a | 10-pin connector, red, coupling station |
| 10 | Earth point, in plenum chamber |
| D95 | Connection (injectors), in engine compartment wiring harness |
| F26 | Connection -2-, in diesel direct injection system wiring harness |
| F8 | Kick-down switch |
| F60 | Idling switch |
| G79 | Accelerator pedal position sender |
| J104 | ABS with EDL control unit |
| J248 | Diesel direct injection system control unit |
| J359 | Low heat output relay |
| J360 | High heat output relay |
| Q7 | Coolant heating elements |
| S109 | Coolant heater element fuse |
| S143 | Coolant heater element fuse 2 |
| S265 | Coolant heater elements fuse 3 |
| T10b | 10-pin connector, blue, coupling station |
| T10n | 10-pin connector, grey, coupling station |
| D78 | Positive (+) connection -1- (30a), in engine compartment wiring harness |
| D98 | Connection (glow plugs), in engine compartment wiring harness |
| D159 | Positive (+) connection (high bus), in engine compartment wiring harness |
| D160 | Positive (+) connection (low bus), in engine compartment wiring harness |
| * | Only models with additional heater |
| F | Brake light switch |
| F36 | Clutch pedal switch |
| F47 | Cruise control system brake pedal switch (diesel direct injection system) |
| F268 | Additional heater, heater element contact switch |
| J248 | Diesel direct injection system control unit |
| J293 | Radiator fan control unit |
| M9 | Brake light bulb, left |
| M10 | Brake light bulb, right |
| M25 | High level brake light bulb |
| T4j | 4-pin connector, behind dash panel |
| T10 | 10-pin connector, green, connector point |
| T10a | 10-pin connector, red, connector point |
| T10d | 10-pin connector, white, connector point |
| 45 | Earth point, behind dash panel |
| 162 | Earth connection, in blower motor wiring harness |
| B131 | Connection (54), in interior wiring harness |
| D73 | Positive (+) connection (54), in engine compartment wiring harness |
| D157 | Connection (air conditioner, on), in engine compartment wiring harness |
| * | Only models with air conditioner |
| ** | Only models with ABS |
| *** | Only models without ABS |
| G40 | Hall sender |
| J52 | Glow plugs relay |
| J248 | Diesel direct injection system control unit |
| J317 | Terminal 30 voltage supply relay |
| N79 | Heater element (crankcase breather) |
| N239 | Intake manifold flap change-over valve |
| Q6 | Glow plugs - (engine) |
| SB23 | Fuse -23- in fuse box |
| T10 | 10-pin connector, green, connector point |
| T10a | 10-pin connector, red, connector point |
| F25 | Connection -1-, in diesel direct injection system wiring harness |
| * | Only models with additional heater |
| G | Fuel gauge sender |
| G6 | Fuel pump (pre-supply pump) |
| G22 | Speedometer sender |
| G32 | Coolant shortage indicator sender |
| J362 | Immobilizer control unit |
| T10 | 10-pin connector, green, connector point |
| T10a | 10-pin connector, red, connector point |
| T10c | 10-pin connector, black, connector point |
| T14b | 14-pin connector, on engine |
| V | Windscreen wiper motor |
| 12 | Earth point, in engine compartment, left |
| 61 | Earth point, left C-pillar |
| 82 | Earth connection -1-, in front left wiring harness |
| 131 | Earth connection -2-, in engine compartment wiring harness |
| 221 | Earth connection (engine earth), in engine wiring harness |
| A38 | Positive (+) connection -2- (15a), in dash panel wiring harness |
| B109 | Earth connection, in interior wiring harness, rear left |
| F1 | Oil pressure switch |
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| J285 | Control unit with display in dash panel insert |
| K2 | Alternator warning lamp |
| K3 | Oil pressure warning lamp |
| K28 | Coolant temperature warning lamp/coolant shortage warning lamp |
| K29 | Glow period warning lamp |
| K105 | Reserve fuel warning lamp |
| T10 | 10-pin connector, green, connector point |
| T10a | 10-pin connector, red, connector point |
| T10c | 10-pin connector, black, connector point |
| T14b | 14-pin connector, on engine |
| G5 | Rev. counter |
| G21 | Speedometer |
| J285 | Control unit with warning lamps on instrument panel |
| J362 | Immobilizer control unit |
| SB16 | Fuse -16- in the fusebox |
| 76 | Earth point, near gearbox control |
| 238 | Earth connection -1-, interior wiring harness |
| 249 | Earth connection -2-, interior wiring harness |
| A27 | Connection (speed signal), instrument panel wiring harness |
| A121 | Connection (High-Bus), instrument panel wiring harness |
| A122 | Connection (Low-Bus), instrument panel wiring harness |
| B158 | Connection (S), interior wiring harness |
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