| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| T2b | 2-pin connector, on engine left |
| T2d | 2-pin connector, near alternator |
| T34 | 34-pin connector, in engine compartment, engine prewiring |
| 14 | Earth point, on gearbox |
| 28 | Earth point, on bulkhead |
| 29 | Earth point, near gear box tunnel |
| D50 | Connection (D+), in engine compartment wiring harness |
| D75 | Positive (+) connection -2- (30), in engine compartment wiring harness |
| D138 | Connection (D+), in engine compartment wiring harness |
| Only models with immobilizer |
| G71 | Intake manifold pressure sender |
| G72 | Intake manifold temperature sender |
| J246 | Magnetic coupling cut-out relay, air conditioning system |
| J248 | Diesel direct injection system control unit, behind centre console |
| J317 | Terminal 30 voltage supply relay, under engine cover |
| S74 | Air mass meter fuse |
| S204 | Fuse -1- (30) |
| S282 | Engine electronics fuse |
| T9a | 9-pin connector, on diesel direct injection system control unit |
| T34 | 34-pin connector, in engine compartment, engine pre-wiring |
| T40 | 40-pin connector, on diesel direct injection system control unit |
| T52 | 52-pin connector, on diesel direct injection system control unit |
| 156 | Earth connection, in diesel direct injection wiring harness |
| D101 | Connection -1-, in engine compartment wiring harness |
| D102 | Connection -2-, in engine compartment wiring harness |
| D144 | Positive connection -5- (30), in engine compartment wiring harness |
| * | Connection only with air conditioner |
| F36 | Clutch pedal switch |
| G28 | Engine speed sender, on rear left of engine |
| G40 | Hall sender |
| G70 | Air mass meter |
| J248 | Diesel direct injection system control unit, behind centre console |
| S5 | Fuse in relay plate fuse holder |
| T3a | 3-pin connector, near engine speed sender |
| T5 | 5-pin connector, on air mass meter |
| T34 | 34-pin connector, in engine compartment |
| T40 | 40-pin connector, on diesel direct injection system control unit |
| T52 | 52-pin connector, on diesel direct injection system control unit |
| 11 | Earth point, in battery box |
| 156 | Earth connection, in diesel direct injection wiring harness |
| D103 | Connection -3-, in engine compartment wiring harness |
| E45 | Cruise control system switch* |
| E227 | Cruise control system (CCS) button (Set)* |
| F | Brake light switch |
| F47 | Brake pedal switch for cruise control system/diesel direct injection system |
| J248 | Diesel direct injection system control unit, behind centre console |
| J362 | Immobilizer control unit |
| K117 | Immobilizer warning lamp |
| N75 | Charge pressure control solenoid valve |
| T6a | 6-pin connector |
| T12c | 12-pin connector |
| T14 | 14-pin connector, in front left footwell, diagnostic socket for V.A.G 1551 |
| T22d | 22-pin connector, on left below dash panel |
| T24 | 24-pin connector, on diesel direct injection system control unit |
| T40 | 40-pin connector, on diesel direct injection system control unit |
| D103 | Connection -3-, in engine compartment wiring harness |
| H20 | Connection -1-, in diagnostic wiring harness |
| H21 | Connection -2-, in diagnostic wiring harness |
| W1 | Positive connection (54), in rear wiring harness |
| * | Only models with cruise control system |
| Only models with immobilizer |
| F60 | Idling switch |
| G79 | Accelerator pedal position sender, on left of bulkhead in engine compartment |
| J248 | Diesel direct injection system control unit, behind centre console |
| N30 | Injector, cylinder 1 |
| N31 | Injector, cylinder 2 |
| N32 | Injector, cylinder 3 |
| N33 | Injector, cylinder 4 |
| N276 | Fuel pressure regulating valve |
| T9b | 9-pin connector, on diesel direct injection system control unit |
| T34 | 34-pin connector, in engine compartment, engine pre-wiring |
| T40 | 40-pin connector, on diesel direct injection system control unit |
| T52 | 52-pin connector, on diesel direct injection system control unit |
| D95 | Connection (injectors), in engine compartment wiring harness |
| D137 | Connection -2- (injectors), in engine compartment wiring harness |
| F27 | Connection (screening), in diesel direct injection wiring harness |
| F95 | Continued coolant circulation thermal switch |
| G2 | Coolant temperature sender |
| G62 | Coolant temperature sender |
| J52 | Glow plug relay, near battery |
| J248 | Diesel direct injection system control unit, behind centre console |
| Q6 | Engine glow plugs |
| S39 | Engine glow plugs strip fuse , on glow plug relay |
| S82 | Continued coolant circulation pump fuse, under driver seat |
| T6 | 6-pin connector, on glow plug relay |
| T34 | 34-pin connector, in engine compartment, engine pre-wiring |
| T40 | 40-pin connector, on diesel direct injection system control unit |
| T52 | 52-pin connector, on diesel direct injection system control unit |
| V51 | Continued coolant circulation pump |
| 11 | Earth point, below battery box |
| 28 | Earth point, on bulkhead |
| * | Only models with an air conditioner/in tropical climates |
| G | Fuel gauge sender |
| G6 | Fuel pump (delivery pump) |
| G247 | Fuel pressure sender |
| J17 | Fuel pump relay |
| J248 | Diesel direct injection system control unit, behind centre console |
| J404 | Terminal 15 relief relay |
| N79 | Crankcase breather heater element |
| N239 | Intake manifold flap change-over valve |
| S81 | Fuel pump fuse |
| S126 | Supplementary heater fuse |
| T4 | 4-pin connector |
| T24 | 24-pin connector, on diesel direct injection system control unit |
| T34 | 34-pin connector, in engine compartment, engine pre-wiring |
| T40 | 40-pin connector, on diesel direct injection system control unit |
| T52 | 52-pin connector, on diesel direct injection system control unit |
| 28 | Earth point, on bulkhead |
| 34 | Earth point, under driver seat |
| D17 | Positive connection -1- (15), in engine wiring harness |
| F22 | Oil pressure switch |
| G22 | Speedometer sender (on gearbox) |
| G32 | Coolant shortage indicator sender |
| H1 | Horn |
| J285 | Control unit with display in dash panel insert |
| J404 | Terminal 15 relief relay, under driver seat |
| J686 | Fuel filter heater relay |
| K36 | Coolant shortage warning lamp |
| N246 | Continued coolant circulation regulation breather valve |
| S7 | Fuse in relay plate fuse holder |
| S290 | Fuel filter heater fuse, under driver seat |
| T2a | 2-pin connector, near coolant expansion tank |
| T2b | 2-pin connector, on left of engine |
| T2c | 2-pin connector, on left below dash panel |
| T12a | 12-pin connector |
| T22 | 22-pin connector, on left below dash panel |
| Z57 | Fuel filter heater |
| 11 | Earth point, in battery box |
| 28 | Earth point, on left of bulkhead |
| 34 | Earth point, under driver seat |
| A20 | Connection (15a), in dash panel wiring harness |
| * | Only models with an air conditioner/in tropical climates |
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| G17 | Ambient temperature sensor, in front bumper |
| G21 | Speedometer |
| G106 | Ambient temperature indicator** |
| J285 | Control unit with display in dash panel insert |
| K3 | Oil pressure warning lamp |
| K105 | Reserve fuel warning lamp |
| T12 | 12-pin connector |
| T12a | 12-pin connector |
| T12b | 12-pin connector |
| T22 | 22-pin connector, under dash panel, left |
| T22d | 22-pin connector, under dash panel, left |
| A27 | Connection (speed signal), in dash panel wiring harness |
| ** | Only optional equipment with ambient temperature indicator |
| F9 | Handbrake warning switch |
| G5 | Rev. counter |
| J13 | Fresh air blower relay, under driver's seat |
| J285 | Control unit with display in dash panel insert |
| K2 | Alternator warning lamp |
| K14 | Handbrake warning lamp |
| K29 | Glow period warning lamp |
| T12 | 12-pin connector |
| T12a | 12-pin connector |
| T22 | 22-pin connector, under dash panel, left |
| Y | Analogue clock, (alternatively with rev. counter) |
| 34 | Earth point, under driver's seat |
| A2 | Positive (+) connection (15), in dash panel wiring harness |
| A115 | Connection (handbrake warning), in dash panel wiring harness |
| * | Only models with power take-off |
| Only models with immobilizer |
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