Wiring Diagram VW POLO 2007 - Battery - starter - alternator - radiator fan
| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| F18 | Radiator fan thermal switch |
| J519 | Onboard supply control unit |
| S162 | Fuse 1 (30), in fuse holder on battery |
| S163 | Fuse 2 (30), in fuse holder on battery |
| S176 | Fuse 4 (30), in fuse holder on battery |
| S180 | Fuse 8 (30), in fuse holder on battery |
| T2 | 2-pin connector, near starter |
| T3a | 3-pin connector, grey, on left of bulkhead |
| T3b | 3-pin connector, on radiator fan |
| T11a | 11-pin connector, white, on left of bulkhead |
| T12a | 12-pin connector, white, on left of bulkhead |
| T18a | 18-pin connector, brown |
| V7 | Radiator fan |
| 11 | Earth point, in battery box |
| 12 | Earth point, on left in engine compartment |
| B170 | Positive connection 2 (30), in interior wiring harness |
| * | Applies only to models not fitted with air conditioner or Climatronic |
Wiring Diagram VW POLO 2007 - Ignition and starter switch - heater element for auxiliary air heating
| D | Ignition and starter switch |
| J359 | Low heat output relay |
| J360 | High heat output relay |
| J519 | Onboard supply control unit |
| S276 | Heater element fuse 1 |
| S277 | Heater element fuse 2 |
| S278 | Heater element fuse 3 |
| T6n | 6-pin connector, blue, on left of bulkhead |
| T18a | 18-pin connector, brown |
| Z35 | Auxiliary air heater element |
| 606 | Earth point, under centre console near gearstick |
| A2 | Positive connection (15), in dash panel wiring harness |
| A15 | Positive connection (15), in instruments wiring harness |
| A32 | Positive connection (30), in dash panel wiring harness |
| A40 | Positive connection 1 (30), in dash panel wiring harness |
| A52 | Positive connection 2 (30), in dash panel wiring harness |
| A104 | Positive connection 2 (15), in dash panel wiring harness |
| A176 | Connection (auxiliary heater), in dash panel wiring harness |
| B169 | Positive connection 1 (30), in interior wiring harness |
| B170 | Positive connection 2 (30), in interior wiring harness |
Wiring Diagram VW POLO 2007 - Fuel pump relay - diesel direct injection system control unit - fuses
| J248 | Diesel direct injection system control unit |
| J317 | Terminal 30 voltage supply relay |
| J519 | Onboard supply control unit |
| SB4 | Fuse 4 on fuse holder |
| SB14 | Fuse 14 on fuse holder |
| SB40 | Fuse 40 on fuse holder |
| T3a | 3-pin connector, grey, on left of bulkhead |
| T6r | 6-pin connector, brown, on left of bulkhead |
| T11b | 11-pin connector, red, on left of bulkhead |
| T14 | 14-pin connector, on left in engine compartment |
| T121 | 121-pin connector |
| A101 | Connection 3 (87), in dash panel wiring harness |
| D102 | Connection 2, in engine compartment wiring harness |
Wiring Diagram VW POLO 2007 - Brake light switch - clutch pedal switch - intake manifold temperature sender - accelerator pedal position sender - diesel direct injection system control unit
| F | Brake light switch |
| F8 | Kickdown switch |
| F36 | Clutch pedal switch |
| F47 | Brake pedal switch |
| F60 | Idling speed switch |
| F268 | Auxiliary heating heater element contact switch |
| G72 | Intake manifold temperature sender |
| G79 | Accelerator pedal position sender |
| G185 | Accelerator pedal position sender 2 |
| J248 | Diesel direct injection system control unit |
| J519 | Onboard supply control unit |
| SB26 | Fuse 26 on fuse holder |
| T6n | 6-pin connector, blue, on left of bulkhead |
| T10c | 10-pin connector, on the right behind dash panel |
| T11c | 11-pin connector, blue, on left of bulkhead |
| T16cd | 16-pin connector, on air conditioning system control unit |
| T121 | 121-pin connector |
| 328 | Earth connection 2 (sender earth), in engine compartment wiring harness |
| A89 | Connection 2 (54), in dash panel wiring harness |
| A100 | Connection 2 (87), in dash panel wiring harness |
| D73 | Positive connection (54), in engine compartment wiring harness |
| D101 | Connection 1, in engine compartment wiring harness |
Wiring Diagram VW POLO 2007 - Fuel temperature sender - modulating piston movement sender - exhaust gas recirculation valve - commencement of injection valve - fuel shut-off valve - metering adjuster - intake manifold flap motor
| G81 | Fuel temperature sender |
| G149 | Modulating piston movement sender |
| J248 | Diesel direct injection system control unit |
| J519 | Onboard supply control unit |
| N18 | Exhaust gas recirculation valve |
| N108 | Commencement of injection valve |
| N109 | Fuel shut-off valve |
| N146 | Metering adjuster |
| T10e | 10-pin connector |
| T14 | 14-pin connector, on left in engine compartment |
| T121 | 121-pin connector |
| V157 | Intake manifold flap motor |
| E30 | Connection (87a), in engine wiring harness |
| F25 | Connection 1, in diesel direct injection system wiring harness |
| F36 | Connection (87a), in diesel direct injection system wiring harness |
Wiring Diagram VW POLO 2007 - Engine speed sender - needle lift sender - diesel direct injection system control unit - data bus diagnostic interface
| G28 | Engine speed sender |
| G80 | Needle lift sender |
| J248 | Diesel direct injection system control unit |
| J519 | Onboard supply control unit |
| J533 | Data bus diagnostic interface |
| T6n | 6-pin connector, blue, on left of bulkhead |
| T11a | 11-pin connector, white, on left of bulkhead |
| T14 | 14-pin connector, on left in engine compartment |
| T16a | 16-pin connector, black |
| T16b | 16-pin connector, diagnostic connection |
| T18a | 18-pin connector, brown |
| T121 | 121-pin connector |
| 29 | Earth point, on left in engine compartment behind battery |
| 131 | Earth connection 2, in engine compartment wiring harness |
| 156 | Earth connection, in diesel direct injection wiring harness |
| A76 | Connection (K diagnosis wire), in dash panel wiring harness |
| A121 | Connection (high bus), in dash panel wiring harness |
| A122 | Connection (low bus), in dash panel wiring harness |
| D159 | Connection (high bus), in engine compartment wiring harness |
| D160 | Connection (low bus), in engine compartment wiring harness |
| F27 | Connection (screening), in diesel direct injection system wiring harness |
Wiring Diagram VW POLO 2007 - Cruise control system switch - coolant temperature sender - diesel direct injection system control unit - engine glow plugs
| E45 | Cruise control system switch |
| G62 | Coolant temperature sender |
| J52 | Glow plug relay |
| J248 | Diesel direct injection system control unit |
| J519 | Onboard supply control unit |
| Q6 | Engine glow plugs |
| T2g | 2-pin connector, near glow plug |
| T6v | 6-pin connector, green, on left of bulkhead |
| T6y | 6-pin connector, brown |
| T11a | 11-pin connector, white, on left of bulkhead |
| T11b | 11-pin connector, red, on left of bulkhead |
| T41 | 41-pin connector, on steering column switch |
| T121 | 121-pin connector |
| A27 | Connection (speed signal), in dash panel wiring harness |
| A56 | Positive connection 2 (30), in instruments wiring harness |
| A152 | Connection 5 (87), in dash panel wiring harness |
| A130 | Connection (CCS), in dash panel wiring harness |
| D78 | Positive connection 1 (30a), in engine compartment wiring harness |
| D98 | Connection (glow plugs), in engine compartment wiring harness |
| * | Applies only to models with cruise control system |
Wiring Diagram VW POLO 2007 - Oil pressure switch - fuel gauge - speedometer sender - oil level and oil temperature sender - dash panel insert
| F1 | Oil pressure switch |
| G | Fuel gauge sender |
| G1 | Fuel gauge |
| G22 | Speedometer sender |
| G266 | Oil level and oil temperature sender |
| J285 | Control unit in dash panel insert |
| J519 | Onboard supply control unit |
| K3 | Oil pressure warning lamp |
| K29 | Glow period warning lamp |
| K105 | Reserve fuel warning lamp |
| SB7 | Fuse 7 on fuse holder |
| T6v | 6-pin connector, green, on left of bulkhead |
| T11a | 11-pin connector, white, on left of bulkhead |
| T11b | 11-pin connector, red, on left of bulkhead |
| T14 | 14-pin connector, on left in engine compartment |
| T32a | 32-pin connector |
| 269 | Earth connection 1 (sender earth), in dash panel wiring harness |
| * | Not on models with ABS |
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