| D | Ignition/starter switch |
| E9 | Fresh air blower switch |
| E159 | Fresh air/air recirculating flap switch |
| K114 | Fresh air/air recirculation warning lamp |
| L16 | Fresh air control light bulb |
| N24 | Fresh air blower with overheating fuse series resistor |
| S5 | Fuse in fuse box |
| S229 | Fuse in fuse box |
| T4c | 4-pin connector |
| T6d | 6-pin connector |
| T8b | 8-pin connector |
| T10j | 10-pin connector, behind dash panel, centre |
| V2 | Fresh air blower |
| V154 | Fresh/recirculating air flap control motor |
| 44 | Earth point, lower part of left A-pillar |
| 162 | Earth connection, in blower motor wiring harness |
| 503 | Screw connection (75x), on relay plate |
| A2 | Positive (+) connection (15), in dash panel wiring harness |
| A4 | Positive (+) connection (58b), in dash panel wiring harness |
| A20 | Connection (15a), in dash panel wiring harness |
| L45 | Connection, in air conditioner controls wiring harness |
| L66 | Connection, in heater blower wiring harness |
| E35 | Air conditioner switch |
| F163 | Air conditioner shut-off thermo-switch |
| G65 | High pressure sender |
| J220 | Motronic control unit, centre in plenum chamber |
| J248 | Diesel direct injection system control unit, centre in plenum chamber |
| J293 | Radiator fan control unit, front left in engine compartment |
| K84 | Air conditioning system warning lamp |
| T8b | 8-pin connector |
| T10 | 10-pin connector, orange, in protective housing for connectors, left in plenum chamber |
| T10d | 10-pin connector, white, in protective housing for connectors, left in plenum chamber |
| T10j | 10-pin connector, in centre behind dash panel |
| T14b | 14-pin connector, on radiator fan control unit |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| 269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
| D155 | Connection -1- (air conditioner pressure switch), in engine compartment |
| L9 | Connection -1-, in air conditioner wirning harness |
| L45 | Connection, in air conditioner controls wirning harness |
| J293 | Radiator fan control unit, front left in engine compartment |
| N25 | Air conditioning system magnetic coupling |
| 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, on radiator fan control unit |
| T14b | 14-pin connector, on radiator fan control unit |
| V7 | Radiator fan |
| V35 | Coolant fan, right |
| 12 | Earth point, in engine compartment, left |
| 193 | Earth connection -1-, in coolant fan wiring harness |
| C11 | Connection in radiator fan wiring harness |
| K21 | Connection -1-, in radiator fan wiring harness |
| A | Battery |
| D | Ignition/starter switch |
| F18 | Radiator fan thermo-switch |
| J293 | Radiator fan control unit, front left in engine compartment |
| S16 | Fuse in relay plate fuse holder |
| S164 | Fuse -3- (30), in battery fuse holder |
| S180 | Fuse -8- (30), in battery fuse holder |
| T3 | 3-pin connector |
| T4a | 4-pin connector, on radiator fan control unit |
| T14b | 14-pin connector, on radiator fan control unit |
| 501 | Screw connection -2- (30), on relay plate |
| A32 | Positive connection (30), in dash panel wiring harness |
| A52 | Positive connection -2- (30), in dash panel wiring harness |
| K20 | Positive(+) connection (30), in radiator fan wiring harness |
| K21 | Connection -1-, in radiator fan wiring harness |
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