| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| S88 | Strip fuse |
| SB30 | Fuse -30- on fuse box |
| SB31 | Fuse -31- on fuse box |
| SB38 | Fuse -38- on fuse box |
| T17e | 17-pin connector, blue, in footwell, front left |
| 44 | Earth point, lower part of left A pillar |
| 65 | Earth point, left longitudinal member, rear, between B and C pillar |
| 249 | Earth connection -2-, in interior wiring harness |
| 277 | Earth connection -3-, in interior wiring harness |
| 284 | Earth connection -6-, in interior wiring harness |
| 500 | Screw connection -1- (30), on relay plate |
| 501 | Screw connection -2- (30), on relay plate |
| A2 | Positive (+) connection (15), in dash panel wiring harness |
| A32 | Positive (+) connection (30), in dash panel wiring harness |
| B138 | Positive (+) connection (X), in interior wiring harness |
| P2 | Positive (+) connection (30), in battery wiring harness |
| J179 | Automatic glow period control unit |
| J248 | Diesel direct injection system control unit |
| J317 | Terminal 30 voltage supply relay |
| Q10 | Glow plug -1- |
| Q11 | Glow plug -2- |
| Q12 | Glow plug -3- |
| S39 | Strip fuse for glow plugs - engine |
| S102 | Engine control unit fuse |
| T17 | 17-pin connector, brown, in footwell, front left |
| T17d | 17-pin connector, green, in footwell, front left |
| 12 | Earth point, in engine compartment, left |
| 284 | Earth connection -6-, in interior wiring harness |
| F8 | Kick-down switch |
| F60 | Idling switch |
| G2 | Coolant temperature sender |
| G62 | Coolant temperature sender |
| G79 | Accelerator pedal position sender |
| J248 | Diesel direct injection system control unit |
| T17 | 17-pin connector, brown, in footwell, front left |
| T17d | 17-pin connector, green, in footwell, front left |
| T17e | 17-pin connector, blue, in footwell, front left |
| 269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
| B508 | Connection (DF), in interior wiring harness |
| E45 | Cruise control system switch |
| G81 | Fuel temperature sender |
| J234 | Airbag control unit |
| J248 | Diesel direct injection system control unit |
| T10n | 10-pin connector, black, behind steering column switch trim |
| T17 | 17-pin connector, brown, in footwell, front left |
| T17d | 17-pin connector, green, in footwell, front left |
| T17e | 17-pin connector, blue, in footwell, front left |
| A16 | Connection (cruise control system), in dash panel wiring harness |
| A121 | Connection (high bus), in dash panel wiring harness |
| A122 | Connection (low bus), in dash panel wiring harness |
| A125 | Connection (crash signal), in dash panel wiring harness |
| * | Only applies to models with cruise control system |
| J248 | Diesel direct injection system control unit |
| N79 | Heater element (crankcase breather) |
| N240 | Unit injector solenoid valve, No. 1 cylinder |
| N241 | Unit injector solenoid valve, No. 2 cylinder |
| N242 | Unit injector solenoid valve, No. 3 cylinder |
| T8b | 8-pin connector, black, at unit injector solenoid valves |
| T17d | 17-pin connector, green, in footwell, front left |
| 12 | Earth point, in engine compartment, left |
| B149 | Positive (+) connection -2- (15a), in interior wiring harness |
| F26 | Connection -2-, in diesel direct injection system wiring harness |
| * | Only applies to models with cruise control system |
| ** | Only applies to models with heater element (crankcase breather) |
| F36 | Clutch pedal switch |
| G40 | Hall sender |
| J248 | Diesel direct injection system control unit |
| N18 | Exhaust gas recirculation valve |
| N75 | Charge pressure control solenoid valve |
| T17 | 17-pin connector, brown, in footwell, front left |
| T17d | 17-pin connector, green, in footwell, front left |
| T17h | 17-pin connector, green, connector point, A pillar, right |
| V157 | Intake manifold flap motor |
| 12 | Earth point, in engine compartment, left |
| C33 | Connection -5-, in headlight wiring harness |
| E87 | Air conditioning system/Climatronic operating and display unit |
| F | Brake light switch |
| G28 | Engine speed sender |
| J248 | Diesel direct injection system control unit |
| N280 | Air conditioning system compressor regulating valve |
| T17 | 17-pin connector, brown, in footwell, front left |
| T17e | 17-pin connector, blue, in footwell, front left |
| 277 | Earth connection -3-, in interior wiring harness |
| B131 | Connection (54), in interior wiring harness |
| F27 | Connection (screening), in diesel direct injection system wiring harness |
| * | Only applies to models with air conditioning system |
| J248 | Diesel direct injection system control unit |
| J285 | Control unit with display in dash panel insert |
| J293 | Radiator fan control unit |
| J604 | Additional air heater control unit |
| K2 | Alternator warning lamp |
| K132 | Electronic power control fault lamp |
| T6g | 6-pin connector, black, on radiator fan control unit |
| T6i | 6-pin connector, black, on additional air heater control unit (PTC 1500 W) |
| T10f | 10-pin connector, blue, connector point, A pillar, left |
| T17 | 17-pin connector, brown, in footwell, front left |
| T17d | 17-pin connector, green, in footwell, front left |
| T17e | 17-pin connector, blue, in footwell, front left |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| Z35 | Additional heating heater element |
| 43 | Earth point, lower part of right A pillar |
| 249 | Earth connection -2-, in interior wiring harness |
| B177 | Connection (61), in interior wiring harness |
| F1 | Oil pressure switch |
| G | Fuel gauge sender |
| G1 | Fuel gauge |
| G9 | Oil temperature gauge |
| G266 | Oil level/oil temperature sender |
| J285 | Control unit with display in dash panel insert |
| T17 | 17-pin connector, brown, in footwell, front left |
| T17e | 17-pin connector, blue, in footwell, front left |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| 12 | Earth point, in engine compartment, left |
| 269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
| B135 | Connection -1- (15a), in interior wiring harness |
| * | Only applies to models with air conditioning system |
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