| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| J207 | Starter inhibitor relay |
| J438 | Current supply relay |
| T1a | Single connector, blue, in engine compartment |
| T6z | 6-pin connector, red, connector point, electronics box, plenum chamber |
| T10 | 10-pin connector, brown, connector point, electronics box, plenum chamber |
| T15k | 15-pin connector, grey, right connector point, A pillar |
| 11 | Earth point, in battery box |
| A15 | Positive (+) connection (15), in dash panel wiring harness |
| A17 | Connection (61), in dash panel wiring harness |
| A40 | Positive (+) connection -1- (30), in dash panel wiring harness |
| E87 | Control and display unit for air conditioner |
| G80 | Needle lift sender |
| J52 | Glow plug relay |
| J248 | Diesel direct injection system control unit |
| J322 | Diesel direct injection system relay |
| Q6 | Glow plugs (engine) |
| S39 | Strip fuse for glow plugs (engine) |
| S102 | Fuse for engine electrics (diesel) |
| T2k | 2-pin connector, brown, in engine compartment |
| T6z | 6-pin connector, red, connector point, electronics box, plenum chamber |
| T10 | 10-pin connector, brown, connector point, electronics box, plenum chamber |
| T10z | 10-pin connector, yellow, connector point, electronics box, plenum chamber |
| 12 | Earth connection, in engine compartment, left |
| 156 | Earth connection, in diesel direct injection wiring harness |
| D16 | Connection (glow plugs), in engine compartment wiring harness |
| D101 | Connection -1-, in engine compartment wiring harness |
| * | Only models with air conditioner |
| C21 | Converter |
| F8 | Kick-down switch |
| F60 | Idling switch |
| G79 | Accelerator pedal position sender |
| J248 | Diesel direct injection system control unit |
| T3ap | 3-pin connector, grey, right connector point, A pillar |
| T6z | 6-pin connector, red, connector point, electronics box, plenum chamber |
| T10 | 10-pin connector, brown, connector point, electronics box, plenum chamber |
| T10m | 10-pin connector, black, connector point, electronics box, plenum chamber |
| T10s | 10-pin connector, white, connector point, electronics box, plenum chamber |
| T15i | 15-pin connector, blue, right connector point, A pillar |
| T15k | 15-pin connector, grey, right connector point, A pillar |
| 238 | Earth connection -1-, in interior wiring harness |
| A27 | Connection (speed signal), in dash panel wiring harness |
| B229 | Connection (high bus), in interior wiring harness |
| B230 | Connection (low bus), in interior wiring harness |
| ● | Data wire (CAN bus) |
| E15 | Heated rear window switch |
| E45 | Cruise control system switch |
| F | Brake light switch |
| G70 | Air mass meter |
| G71 | Intake manifold pressure sender |
| G72 | Intake manifold temperature sender |
| J248 | Diesel direct injection system control unit |
| M9 | Brake light bulb, left |
| M10 | Brake light bulb, right |
| N18 | Exhaust gas recirculation valve |
| N75 | Charge pressure control solenoid valve |
| T6y | 6-pin connector, in steering column |
| T10 | 10-pin connector, brown, connector point, electronics box, plenum chamber |
| T10m | 10-pin connector, black, connector point, electronics box, plenum chamber |
| T10s | 10-pin connector, white, connector point, electronics box, plenum chamber |
| T10z | 10-pin connector, yellow, connector point, electronics box, plenum chamber |
| A18 | Connection (54), in dash panel wiring harness |
| A64 | Connection (rpm boost), in dash panel wiring harness |
| A71 | Connection (86), in dash panel wiring harness |
| D103 | Connection -3-, in engine compartment wiring harness |
| * | Only models with cruise control system |
| G81 | Fuel temperature sender |
| G149 | Modulating piston movement sender |
| J248 | Diesel direct injection system control unit |
| N108 | Commencement of injection valve |
| N109 | Fuel shut-off valve |
| N146 | Metering adjuster |
| T3a | 3-pin connector, black, in engine compartment |
| T8d | 8-pin connector, in engine compartment |
| T10r | 10-pin connector, in engine compartment |
| 156 | Earth connection, in diesel direct injection wiring harness |
| D103 | Connection -3-, in engine compartment wiring harness |
| F25 | Connection -1-, in diesel direct injection system wiring harness |
| * | Only engine code AHH |
| ** | Only models with engine code AHU |
| F4 | Reversing light switch |
| G2 | Coolant temperature sender |
| G28 | Engine speed sender |
| G62 | Coolant temperature sender |
| J248 | Diesel direct injection system control unit |
| J439 | Automatic clutch control unit |
| M16 | Reversing light bulb, left |
| M17 | Reversing light bulb, right |
| T3m | 3-pin connector, grey, in engine compartment, left |
| T10 | 10-pin connector, brown, connector point, electronics box, plenum chamber |
| T10a | 10-pin connector, brown, left connector point, A pillar |
| T10m | 10-pin connector, black, connector point, electronics box, plenum chamber |
| T10z | 10-pin connector, yellow, connector point, electronics box, plenum chamber |
| T15i | 15-pin connector, blue, right connector point, A pillar |
| 86 | Earth connection -1-, in rear wiring harness |
| 156 | Earth connection, in diesel direct injection wiring harness |
| 199 | Earth connection -3-, in dash panel wiring harness |
| 250 | Earth connection, in engine wiring pre-wiring harness - diesel |
| A70 | Connection (15a, fuse 231), in dash panel wiring harness |
| A87 | Connection (reversing light), in dash panel wiring harness |
| ● | Data wire (CAN bus) |
| D | Ignition/starter switch |
| F1 | Oil pressure switch |
| F66 | Coolant shortage indicator switch |
| G | Fuel gauge sender |
| G22 | Speedometer sender (Hall sender, on gearbox) |
| J218 | Combi-processor in dash panel insert |
| K2 | Alternator warning lamp |
| K29 | Glow period warning lamp |
| T10a | 10-pin connector, brown, left connector point, A pillar |
| T10m | 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 |
| Y9 | Display unit for duo-operation |
| 32 | Earth point, behind dash panel, left |
| 156 | Earth connection, in diesel direct injection wiring harness |
| 250 | Earth connection, in engine wiring pre-wiring harness - diesel |
| A2 | Positive (+) connection (15), in dash panel wiring harness |
| A32 | Positive (+) connection (30), in dash panel wiring harness |
| A50 | Positive (+) connection (30as), in dash panel wiring harness |
| A100 | Connection -2- (87), in dash panel wiring harness |
