| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| J519 | Onboard power supply control unit |
| S162 | Fuse -1- (30), in battery fuse holder |
| S176 | Fuse -4- (30), in battery fuse holder |
| T2 | 2-Pin Connector |
| T2v | 2-Pin Connector, on alternator |
| T6q | 6-Pin Connector, (blue) in engine compartment, left |
| T11d | 11-Pin Connector, (white) in engine compartment, left |
| T18a | 18-Pin Connector, on onboard power supply control unit |
| 1 | Earth strap, battery body |
| 3 | Earth strap, engine - body |
| 14 | Earth point, on gearbox |
| G62 | Coolant temperature sender |
| G81 | Fuel temperature sender |
| J52 | Glow plug relay |
| J248 | Diesel direct injection system control unit |
| J519 | Onboard power supply control unit |
| Q6 | Glow plug - (engine) |
| T2g | 2-Pin Connector |
| T6w | 6-Pin Connector, (grey) in engine compartment, left |
| T11d | 11-Pin Connector, (white) in engine compartment, left |
| T121 | 121-Pin Connector |
| A56 | Positive connection -2- (30), in dash panel wiring harness |
| A152 | Connection -5- (87), in dash panel wiring harness |
| D78 | Positive connection -1- (30a), in engine compartment wiring harness |
| D102 | Connection -2-, in engine compartment wiring harness |
| F | Brake light switch |
| F36 | Clutch pedal switch |
| F47 | Cruise control system brake pedal switch (diesel direct injection system) |
| G79 | Accelerator pedal position sender |
| G185 | Accelerator pedal position sender -2- |
| J111 | Brake light relay |
| J248 | Diesel direct injection system control unit |
| J519 | Onboard power supply control unit |
| SB32 | Fuse -32- on fuse holder |
| T4c | 4-Pin Connector, on brake pedal switch |
| T4p | 4-Pin Connector, on clutch pedal switch |
| T5i | 5-Pin Connector, on brake light relay |
| T6q | 6-Pin Connector, (blue) in engine compartment, left |
| T6z | 6-Pin Connector, on accelerator pedal position sender |
| T11a | 11-Pin Connector, (blue) in engine compartment, left |
| T11b | 11-Pin Connector, (red) in engine compartment, left |
| T121 | 121-Pin Connector |
| 238 | Earth connection -1-, in interior wiring harness |
| B131 | Connection (54), in interior wiring harness |
| B135 | Connection -1- (15a), in interior wiring harness |
| B235 | Positive connection -4- (15a), in interior wiring harness |
| D73 | Positive connection (54), in engine compartment wiring harness |
| D101 | Connection -1-, in engine compartment wiring harness |
| G40 | Hall sender |
| G71 | Intake manifold pressure sender |
| G72 | Intake manifold temperature sender |
| J248 | Diesel direct injection system control unit |
| J519 | Onboard power supply control unit |
| N18 | Exhaust gas recirculation valve |
| N75 | Charge pressure control solenoid valve |
| T3j | 3-Pin Connector |
| T4g | 4-Pin Connector |
| T6p | 6-Pin Connector |
| T14a | 14-Pin Connector, in engine compartment, left |
| T121 | 121-Pin Connector |
| 13 | Earth point, on right in engine compartment |
| 131 | Earth connection -2-, in engine compartment wiring harness |
| 132 | Earth connection -3-, in engine compartment wiring harness |
| D173 | Connection (87), in engine wiring harness |
| E30 | Connection (87a), in engine wiring harness |
| G28 | Engine speed sender |
| G70 | Air mass meter |
| J248 | Diesel direct injection system control unit |
| J519 | Onboard power supply control unit |
| SB5 | Fuse -5- on fuse holder |
| SB17 | Fuse -17- on fuse holder |
| T3m | 3-Pin Connector, |
| T5l | 5-Pin Connector, |
| T6q | 6-Pin Connector, (blue) in engine compartment, left |
| T11b | 11-Pin Connector, (red) in engine compartment, left |
| T11d | 11-Pin Connector, (white) in engine compartment, left |
| T14a | 14-Pin Connector, in engine compartment, left |
| T16a | 16-Pin Connector, on onboard power supply control unit |
| T16b | 16-Pin Connector, diagnosis connection |
| T18a | 18-Pin Connector, on onboard power supply control unit |
| T121 | 121-Pin Connector |
| B159 | Connection (diagnosis), in interior wiring harness |
| B229 | Connection (high bus), in interior wiring harness |
| B230 | Connection (low bus), in interior wiring harness |
| D52 | Positive connection (15a), in engine compartment wiring harness |
| D159 | Connection (high bus), in engine compartment wiring harness |
| D160 | Connection (low bus), in engine compartment wiring harness |
| F268 | Additional heating heater element contact switch |
| J248 | Diesel direct injection system control unit |
| J519 | Onboard power supply control unit |
| N240 | Unit injector valve, No. 1 cyl. |
| N241 | Unit injector valve, No. 2 cyl. |
| N242 | Unit injector valve, No. 3 cyl. |
| N243 | Unit injector valve, No. 4 cyl. |
| T6c | 6-Pin Connector, on onboard power supply control unit |
| T8o | 8-Pin Connector |
| T10c | 10-Pin Connector, behind dash panel, right |
| T11a | 11-Pin Connector, (blue) in engine compartment, left |
| T11d | 11-Pin Connector, (white) in engine compartment, left |
| T16c | 16-Pin Connector |
| T121 | 121-Pin Connector |
| A130 | Connection (GRA (CCS)), in dash panel wiring harness |
| J359 | Low heat output relay |
| J360 | High heat output relay |
| J519 | Onboard power supply control unit |
| S276 | Heater element fuse -1- |
| S277 | Heater element fuse -2- |
| S278 | Heater element fuse -3- |
| T3n | 3-Pin Connector, behind dash panel |
| TV3 | Terminal 30a wiring junction |
| Z35 | Additional heating heater element |
| 606 | Earth point, under the centre console, near gear stick |
| A176 | Connection (additional heater), in dash panel wiring harness |
| B150 | Positive connection -2- (30a), in interior wiring harness |
| B151 | Positive connection -3- (30a), in interior wiring harness |
| J17 | Fuel pump relay |
| J317 | Terminal 30 voltage supply relay |
| J519 | Onboard power supply control unit |
| SB4 | Fuse -4- on fuse holder |
| SB14 | Fuse -14- on fuse holder |
| SB40 | Fuse -40- on fuse holder |
| SB41 | Fuse -41- on fuse holder |
| T3c | 3-Pin Connector, (grey) in engine compartment, left |
| T6p | 6-Pin Connector, (yellow) in engine compartment, left |
| T11b | 11-Pin Connector, (red) in engine compartment, left |
| A101 | Connection -3- (87), in dash panel wiring harness |
| B503 | Positive connection -7- (30a), in interior wiring harness |
| F1 | Oil pressure switch |
| G | Fuel gauge sender |
| G1 | Fuel gauge |
| G6 | Fuel pump (pre-supply pump) |
| J285 | Control unit with display in dash panel insert |
| J519 | Onboard power supply control unit |
| K3 | Oil pressure warning lamp |
| K29 | Glow period warning lamp |
| K105 | Reserve fuel warning lamp |
| T4a | 4-Pin Connector, on fuel gauge sender |
| T6v | 6-Pin Connector, in engine compartment, left |
| T11b | 11-Pin Connector, (red) in engine compartment, left |
| T14a | 14-Pin Connector, in engine compartment, left |
| T32a | 32-Pin Connector, on dash panel insert |
| 249 | Earth connection -2-, in interior wiring harness |
| 278 | Earth connection -4-, in interior wiring harness |
| 401 | Earth connection (sender earth), in interior wiring harness |
| 606 | Earth point, under the centre console, near gear stick |
| B178 | Connection (speed signal), in interior wiring harness |
| D | Ignition/starter switch |
| G22 | Speedometer sender (Hall sender on gearbox) |
| G266 | Oil level/oil temperature sender |
| J519 | Onboard power supply control unit |
| N79 | Heater element (crankcase breather) |
| SB7 | Fuse -7- on fuse holder |
| T3l | 3-Pin Connector, on speedometer sender |
| T11b | 11-Pin Connector, (red) in engine compartment, left |
| T11d | 11-Pin Connector, (white) in engine compartment, left |
| T14a | 14-Pin Connector, in engine compartment, left |
| 250 | Earth connection, in engine wiring harness - Diesel |
| 294 | Earth connection -9-, in interior wiring harness |
| A139 | Connection -3- (15), in dash panel wiring harness |
| B163 | Positive connection -1- (15), in interior wiring harness |
| B165 | Positive connection -2- (15), in interior wiring harness |
| B492 | Positive connection -3- (15), in interior wiring harness |