| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| F125 | Multi-function switch |
| J217 | Automatic gearbox control unit |
| J226 | Starter inhibitor and reversing light relay |
| T1h | Single connector, black, in engine compartment, right |
| T2cl | 2-pin connector, black, on alternator |
| T9 | 9-pin connector, brown, at starter inhibitor relay |
| T10o | 10-pin connector, brown, connector point, electronics box, plenum chamber |
| T15r | 15-pin connector, blue, connector point, A pillar, right |
| 1 | Earth strap, battery-body |
| A41 | Positive (+) connection (50), in dash panel wiring harness |
| U3 | Connection -1-, in automatic gearbox wiring control unit |
| U6 | Connection -2-, in automatic gearbox wiring harness |
| * | Models with manual gearbox |
| ** | Models with automatic gearbox 01N |
| *** | Both possible |
| # | 120 A alternator |
| D | Ignition/starter switch |
| F4 | Reversing light switch |
| G266 | Oil level thermo sender, service interval |
| J52 | Glow plug relay |
| M16 | Reversing light bulb, left |
| M17 | Reversing light bulb, right |
| Q6 | Glow plugs - engine |
| S5 | Fuse in fuse box |
| S39 | Fuse for glow plugs - engine |
| S231 | Fuse 31 in fuse box |
| T3au | 3-pin connector, red, connector point, electronics box, plenum chamber |
| T10o | 10-pin connector, brown, connector point, electronics box, plenum chamber |
| T10p | 10-pin connector, black, connector point, electronics box, plenum chamber |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| A2 | Positive (+) connection (15), in dash panel wiring harness |
| A20 | Connection (15a), in dash panel wiring harness |
| A38 | Positive (+) connection -2- (15a), in dash panel wiring harness |
| A87 | Connection (reversing light), in dash panel wiring harness |
| D16 | Connection (glow plugs), in front right wiring harness |
| * | Models with manual gearbox |
| ** | Models with automatic gearbox 01N |
| G70 | Air mass meter |
| J248 | Diesel direct injection system control unit |
| J322 | Diesel direct injection system relay |
| N18 | Exhaust gas recirculation valve |
| N75 | Charge pressure control solenoid valve |
| N79 | Heater element (crankcase breather) |
| S102 | Engine control unit fuse |
| T3bg | 3-pin connector, white, connector point, electronics box, plenum chamber |
| T10n | 10-pin connector, orange, connector point, electronics box, plenum chamber |
| 13 | Earth point, in engine compartment, right |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| A32 | Positive (+) connection (30), in dash panel wiring harness |
| D50 | Positive (+) connection (30), in engine compartment wiring harness |
| D83 | Connection (87), in engine compartment wiring harness |
| D101 | Connection -1-, in engine compartment wiring harness |
| * | Only applies to versions rated down to -40°C |
| E3 | Hazard warning light switch |
| G81 | Fuel temperature sender |
| G149 | Modulating piston movement sender |
| J234 | Airbag control unit |
| J248 | Diesel direct injection system control unit |
| J399 | Injection pump control unit |
| N108 | Commencement of injection valve |
| N109 | Fuel shut-off valve |
| N146 | Metering adjuster |
| T3l | 3-pin connector, black, on injection pump |
| T3au | 3-pin connector, red, connector point, electronics box, plenum chamber |
| T8b | 8-pin connector, on injection pump |
| T15u | 15-pin connector, red, connector point, electronics box, plenum chamber |
| 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 |
| D102 | Connection -2-, in engine compartment wiring harness |
| • | CAN bus (data wire) |
| * | 120 A alternator |
| E87 | Control and display unit for air conditioner |
| F38 | Ambient temperature switch |
| G2 | Coolant temperature sender |
| G28 | Engine speed sender |
| G62 | Coolant temperature sender |
| G71 | Intake manifold pressure sender |
| G72 | Intake manifold temperature sender |
| G80 | Needle lift sender |
| J248 | Diesel direct injection system control unit |
| T2r | 2-pin connector, brown, in engine compartment, right |
| T10c | 10-pin connector, grey, connector point, A pillar, left |
| T10p | 10-pin connector, black, connector point, electronics box, plenum chamber |
| T15u | 15-pin connector, red, connector point, electronics box, plenum chamber |
| 131 | Earth connection -2-, in engine compartment wiring harness |
| 200 | Earth connection (screening), in engine compartment wiring harness |
| 269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
| A34 | Connection (75x), in dash panel wiring harness |
| A68 | Connection (C15, air conditioner), in dash panel wiring harness |
| * | Models with Thermotronic |
| ** | Models with air conditioner |
| E45 | Cruise control system switch |
| F | Brake light switch |
| F36 | Clutch pedal switch |
| F47 | Cruise control system brake pedal switch (diesel direct injection system) |
| J248 | Diesel direct injection system control unit |
| S13 | Fuse in fuse box |
| T10n | 10-pin connector, orange, connector point, electronics box, plenum chamber |
| T10o | 10-pin connector, brown, connector point, electronics box, plenum chamber |
| T10q | 10-pin connector, black, on cruise control system switch |
| T15e | 15-pin connector, white, connector point, electronics box, plenum chamber |
| A16 | Connection (cruise control system), in dash panel wiring harness |
| A18 | Connection (54), in dash panel wiring harness |
| A52 | Positive (+) connection 2 (30), in dash panel wiring harness |
| A99 | Connection -1- (87), in dash panel wiring harness |
| B131 | Connection (54), in interior wiring harness |
| * | Models with cruise control system |
| ** | Models with manual gearbox |
| F8 | Kick-down switch |
| F60 | Idling switch |
| G79 | Accelerator pedal position sender |
| J248 | Diesel direct injection system control unit |
| T6an | 6-pin connector, in footwell, front left |
| T15e | 15-pin connector, white, connector point, electronics box, plenum chamber |
| T15u | 15-pin connector, red, connector point, electronics box, plenum chamber |
| * | Phased-in modification, adapter lead no longer fitted |
| J17 | Fuel pump relay |
| J217 | Automatic gearbox control unit |
| J359 | Low heat output relay |
| J360 | High heat output relay |
| S109 | Additional heater fuse |
| S143 | Additional heater fuse 2 |
| S228 | Fuse 28 in fuse box |
| T10ba | 10-pin connector, blue, connector point, A pillar, left |
| T15r | 15-pin connector, blue, connector point, A pillar, right |
| Z35 | Additional heating heater element |
| 44 | Earth point, lower part of left A pillar |
| 156 | Earth connection, in diesel direct injection wiring harness |
| A57 | Connection (30), in dash panel wiring harness |
| F32 | Connection (additional heater), in diesel direct injection system wiring harness |
| * | Models with four-wheel drive |
| ** | Models with automatic gearbox 01N |
| E87 | Control and display unit for air conditioner |
| F18 | Radiator fan thermo-switch |
| F54 | Radiator fan thermo-switch |
| F129 | Air conditioner pressure switch |
| J26 | Radiator fan relay |
| J101 | Radiator fan 2nd speed relay |
| J138 | Radiator fan run-on relay |
| N39 | Radiator fan series resistor |
| S42 | Radiator fan single fuse |
| S142 | Radiator fan control unit fuse |
| S225 | Fuse 25 in fuse box |
| T14a | 14-pin connector, black, in engine compartment, front left |
| T17h | 17-pin connector, brown, connector point, A pillar, left |
| V7 | Radiator fan |
| 44 | Earth point, lower part of left A pillar |
| 193 | Earth connection -1-, in radiator fan wiring harness |
| 194 | Earth connection -2-, in radiator fan wiring harness |
| D168 | Connection (radiator fan stage II), in engine compartment wiring harness |
| L4 | Connection (75 al), in air conditioner wiring harness |
| * | Models with air conditioner |
| G | Fuel gauge sender |
| G1 | Fuel gauge |
| G6 | Fuel pump (pre-supply pump) |
| G169 | Fuel gauge sender 2 |
| G237 | Fuel gauge sender 3 |
| J218 | Combi-processor in dash panel insert |
| K2 | Alternator warning lamp |
| T10f | 10-pin connector, brown, connector point, A pillar, left |
| T10p | 10-pin connector, black, connector point, electronics box, plenum chamber |
| T16a | 16-pin connector, diagnosis connection |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| 86 | Earth connection -1-, in rear wiring harness |
| 269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
| A17 | Connection (61), in dash panel wiring harness |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| * | Models with front-wheel drive |
| ** | Models with four-wheel drive |
| *** | Wiring in fuel tank |
| # | Sender earth output |
| F1 | Oil pressure switch |
| F66 | Coolant shortage indicator switch |
| G3 | Coolant temperature gauge |
| G5 | Rev. counter |
| G21 | Speedometer |
| G22 | Speedometer sender (Hall sender, on gearbox) |
| J218 | Combi-processor in dash panel insert |
| K3 | Oil pressure warning lamp |
| K28 | Coolant temperature/coolant shortage warning lamp |
| T10p | 10-pin connector, black, connector point, electronics box, plenum chamber |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| 131 | Earth connection -2-, in engine compartment wiring harness |
| A45 | Connection (engine speed signal), in dash panel wiring harness |
| A108 | Connection (speed signal), in dash panel wiring harness |
| • | CAN bus (data wire) |
