| D | Ignition/starter switch |
| E87 | Operating and display unit for Climatronic air conditioning system |
| G56 | Dash panel temperature sensor |
| G92 | Potentiometer for temperature flap control motor |
| J255 | Climatronic control unit |
| L75 | Digital display illumination bulb |
| L76 | Button illumination bulb |
| S5 | Fuse 5 in fuse holder |
| S16 | Fuse 16 in fuse holder |
| T6a | 6-pin connector, centre behind dash panel |
| T16a | 16-pin connector |
| T17a | 17-pin connector, centre behind dash panel |
| T20 | 20-pin connector |
| V42 | Temperature sensor blower |
| V68 | Temperature flap control motor |
| 243 | Earth connection 1, in Climatronic wiring harness |
| 501 | Screw connection 2 (30), on relay plat |
| A2 | Positive connection (15), in dash panel wiring harness |
| A20 | Connection (15a), in dash panel wiring harness |
| A32 | Positive connection (30), in dash panel wiring harness |
| A58 | Connection (5 volt), in dash panel wiring harness |
| A98 | Positive connection 4 (30), in dash panel wiring harness |
| G112 | Central flap control motor potentiometer |
| G114 | Footwell and defroster flap control motor potentiometer |
| J255 | Climatronic control unit |
| J285 | Control unit in dash panel insert |
| T6b | 6-pin connector, centre behind dash panel |
| T6c | 6-pin connector, centre behind dash panel |
| T12 | 12-pin connector |
| T12a | 12-pin connector, centre behind dash panel |
| T16 | 16-pin connector, centre in dash panel, self-diagnosis connection |
| T16a | 16-pin connector |
| T20 | 20-pin connector |
| T32a | 32-pin connector, green, on dash panel insert |
| V70 | Central flap control motor |
| V85 | Footwell and defroster flap control motor |
| A76 | Connection (K-diagnosis wire), in dash panel wiring harness |
| G89 | Fresh air intake duct temperature sensor, on right under dash panel |
| G113 | Air flow flap control motor potentiometer |
| G192 | Footwell vent temperature sender |
| J255 | Climatronic control unit |
| J... | Engine control units |
| T5 | 5-pin connector, centre behind dash panel |
| T10 | 10-pin connector, orange, in protective housing for connectors on left in plenum chamber |
| T12 | 12-pin connector |
| T16a | 16-pin connector |
| T16b | 16-pin connector |
| T17a | 17-pin connector, centre behind dash panel |
| T20 | 20-pin connector |
| V71 | Servomotor for air flow flap |
| A58 | Connection (5 volt), in dash panel wiring harness |
| E20 | Illumination regulators, switches, instruments |
| G17 | Ambient temperature sensor, on bumper front left |
| G107 | Sunlight penetration photosensor, central on dash panel |
| J126 | Fresh air blower control unit, on right under dash panel |
| J255 | Climatronic control unit |
| S225 | Fuse 25 in fuse holder |
| T6c | 6-pin connector |
| T12 | 12-pin connector |
| T12a | 12-pin connector, centre behind dash panel |
| T16b | 16-pin connector |
| T17a | 17-pin connector, centre behind dash panel |
| T20 | 20-pin connector |
| V2 | Fresh air blower |
| 43 | Earth point, lower part of right A-pillar |
| 243 | Earth connection 1, in Climatronic wiring harness |
| 244 | Earth connection (sender earth), in Climatronic wiring harness |
| 257 | Earth connection 2, in Climatronic wiring harness |
| 503 | Screw connection (75x), on relay plate |
| A4 | Positive connection (58b), in dash panel wiring harness |
| L67 | Positive connection (75X), in Climatronic wiring harness |
| J217 | Automatic gearbox control unit |
| J255 | Climatronic control unit |
| J285 | Control unit in dash panel insert |
| J... | Engine control units |
| T10 | 10-pin connector, orange, in protective housing for connectors on left in plenum chamber |
| T12 | 12-pin connector |
| T12a | 12-pin connector, centre behind dash panel |
| T16a | 16-pin connector |
| T16b | 16-pin connector |
| T17a | 17-pin connector, centre behind dash panel |
| T32 | 32-pin connector, blue, on dash panel insert |
| T68 | 68-pin connector |
| 42 | Earth point, next to steering column |
| 49 | Earth point, on steering column |
| 81 | Earth connection 1, in dash panel wiring harness |
| 135 | Earth connection 2, in dash panel wiring harness |
| A27 | Connection (speed signal), in dash panel wiring harness |
| --- | Only models with automatic gearbox (AG4) |
| J285 | Control unit in dash panel insert |
| J293 | Radiator fan control unit, in front left of engine compartment |
| N25 | Air conditioning system magnetic clutch |
| T3a | 3-pin connector, front left in engine compartment |
| T3b | 3-pin connector, front left in engine compartment |
| T4 | 4-pin connector, near starter |
| T4a | 4-pin connector |
| T14 | 14-pin connector |
| T14a | 14-pin connector, near battery |
| T32a | 32-pin connector, green, on dash panel insert |
| V7 | Radiator fan |
| V35 | Right fan for radiator** |
| V51 | Continued coolant circulation pump |
| 85 | Earth connection 1, in engine compartment wiring harness |
| 193 | Earth connection 1, in coolant fan wiring harness |
| 608 | Earth point, centre in plenum chamber |
| A68 | Connection (30, air conditioning system), in dash panel wiring harness |
| C11 | Connection in radiator fan wiring harness |
| K21 | Connection 1, in radiator fan wiring harness |
| * | Only models with 5 or 6-cylinder engines |
| ** | Depending on engine with series resistor/with no series resistor |
| --- | Not on all engine variants |
| A | Battery |
| F18 | Thermal switch for radiator fan |
| G65 | High-pressure sender |
| J293 | Radiator fan control unit, in front left of engine compartment |
| J... | Engine control units |
| S164 | Fuse 3 (30), in battery fuse holder |
| S180 | Fuse 8 (30), in battery fuse holder |
| T3 | 3-pin connector |
| T3c | 3-pin connector |
| T4a | 4-pin connector |
| T10 | 10-pin connector, orange, in protective housing for connectors on left in plenum chamber |
| T10w | 10-pin connector, white, in protective housing for connectors on left in plenum chamber |
| T14 | 14-pin connector |
| 12 | Earth point, on left in engine compartment |
| 193 | Earth connection 1, in coolant fan wiring harness |
| D61 | Connection (air conditioning system), in engine compartment wiring harness |
| K20 | Positive connection 1 (30), in radiator fan wiring harness |
| K21 | Connection 1, in radiator fan wiring harness |
| ** | Only TDI engines |
| --- | Not applicable for all engine control units |
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