| E87 | Control and display unit for Climatronic |
| G56 | Dash panel temperature sensor |
| J255 | Climatronic control unit |
| J285 | Control unit with display in dash panel insert |
| L75 | Digital display illumination |
| L76 | Button illumination |
| T6 | 6-pin connector |
| T28a | 28-pin connector, on dash panel insert |
| T28c | 28-pin connector, red |
| T28d | 28-pin connector, blue |
| V42 | Temperature sensor blower |
| V68 | Temperature flap control motor |
| B178 | Connection (speed signal), in interior wiring harness |
| A | Battery |
| J162 | Heater control unit D3W/D4W, in additional heater unit |
| J248 | Diesel direct injection system control unit, in engine compartment, left |
| J255 | Climatronic control unit |
| J485 | Auxiliary heater operation relay |
| N63 | Fresh and recirculating air flap two-way valve |
| N172 | Additional heat exchanger valve |
| S211 | Fuse -1- (X), No. 29 in fuse box |
| T8 | 8-pin connector, near additional heater unit |
| T28c | 28-pin connector, red |
| T28d | 28-pin connector, blue |
| T121 | 121-pin connector, on diesel direct injection system control unit |
| 33 | Earth point, behind dash panel, right |
| 131 | Earth connection -2-, in engine compartment wiring harness |
| 298 | Earth connection -13-, in interior wiring harness |
| B174 | Positive (+) connection -3- (X), in interior wiring harness |
| B233 | Connection (additional heater, on), in interior wiring harness |
| * | Only 2nd heat exchanger |
| ** | Only additional heater D4W |
| --- | Only additional heater D3W/D4W |
| J255 | Climatronic control unit |
| S200 | Fuse -2- (15), No. 3 in fuse box |
| T6c | 6-pin connector |
| T6d | 6-pin connector |
| T28c | 28-pin connector, red |
| T28e | 28-pin connector, white |
| V136 | Rear air distribution control motor |
| V137 | Rear temperature flap control motor |
| B135 | Connection -1- (15a), in interior wiring harness |
| B163 | Positive (+) connection -1- (15), in interior wiring harness |
| B210 | Connection -2- (actuating motors), in interior wiring harness |
| * | Vehicles with 2nd evaporator only |
| G174 | Rear vent temperature sender |
| J255 | Climatronic control unit |
| J391 | Rear fresh air blower control unit |
| T28c | 28-pin connector, red |
| T28e | 28-pin connector, white |
| V80 | Rear fresh air blower |
| 57 | Earth point, rear pillar, left |
| 299 | Earth connection -14-, in interior wiring harness |
| B156 | Positive (+) connection (30a), in interior wiring harness |
| B211 | Positive (+) connection -1- (Climatronic rear), in interior wiring harness |
| B212 | Positive (+) connection -2- (Climatronic rear), in interior wiring harness |
| J126 | Blower control unit |
| J255 | Climatronic control unit |
| J323 | Blower relay, control number (114) |
| S140 | Front Climatronic fuse, No. 22 in fuse box |
| S141 | Rear Climatronic fuse, No. 21 in fuse box |
| S208 | Fuse -5- (30), No. 19 in fuse box |
| T28c | 28-pin connector, red |
| T28d | 28-pin connector, blue |
| V2 | Fresh air blower |
| 32 | Earth point, behind dash panel, left |
| 249 | Earth connection -2-, in interior wiring harness |
| B172 | Positive (+) connection -4- (30), in interior wiring harness |
| B199 | Connection -1- (fresh air blower), in interior wiring harness |
| B200 | Connection -2- (fresh air blower), in interior wiring harness |
| B213 | Connection -3- (fresh air blower), in interior wiring harness |
| A | Battery |
| F163 | Air conditioner shut-off thermo-switch, centre in engine compartment |
| F165 | Radiator fan thermo-switch, third speed, centre in engine compartment |
| J44 | Magnetic coupling relay, control number (168) |
| J59 | X contact relief relay |
| N25 | Air conditioning system magnetic coupling |
| S213 | Fuse -3- (X), No. 28 in fuse box |
| T2f | 2-pin connector, near compressor |
| T4 | 4-pin connector |
| T10d | 10-pin connector, in engine compartment, left |
| 18 | Earth point, on front engine block |
| 132 | Earth connection -3-, in engine compartment wiring harness |
| B138 | Positive (+) connection -1- (X), in interior wiring harness |
| B206 | Positive (+) connection -5- (X), in interior wiring harness |
| D114 | Connection -9-, in engine compartment wiring harness |
| D158 | Positive (+) connection (X), in engine compartment wiring harness |
| L28 | Connection, in engine compartment - Climatronic wiring harness |
| F18 | Radiator fan thermo-switch |
| F87 | radiator fan run-on/continued coolant circulation thermo-switch |
| F129 | Air conditioner pressure switch |
| J29 | Diode, entwined in wiring harness |
| J138 | Radiator fan run-on control unit, control number (181) |
| J317 | Terminal 30 voltage supply relay |
| S203 | Fuse -5- (15), No. 32 in fuse box |
| S214 | Radiator fan run-on fuse , No. 15 in fuse box |
| S222 | Radiator fan thermo-switch fuse , No. 18 in fuse box |
| S263 | Air conditioning system magnetic coupling fuse, No. 16 in fuse box |
| T4d | 4-pin connector |
| 167 | Earth connection -4-, in engine compartment wiring harness |
| B169 | Positive (+) connection -1- (30), in interior wiring harness |
| B171 | Positive (+) connection -3- (30), in interior wiring harness |
| D109 | Connection -7-, in engine compartment wiring harness |
| D155 | Connection (air conditioner pressure switch) -1-, in engine compartment wiring harness |
| F25 | Connection -1-, in diesel direct injection system wiring harness |
| F26 | Connection -2-, in diesel direct injection system wiring harness |
| A | Battery |
| J26 | Radiator fan relay |
| N39 | Radiator fan series resistor |
| S42 | Radiator fan single fuse, the lower relay carrier of the multi-funcion unit |
| T2p | 2-pin connector, on radiator fan |
| T2q | 2-pin connector, on radiator fan |
| T4a | 4-pin connector |
| T4b | 4-pin connector |
| T4c | 4-pin connector |
| V7 | Radiator fan, left |
| V35 | Radiator fan, right |
| V51 | Continued circulation of coolant pump |
| 12 | Earth point, in engine compartment, left - below the battery |
| 167 | Earth connection -4-, in engine compartment wiring harness |
| D75 | Positive (+) connection -2- (30), in engine compartment wiring harness |
| D103 | Connection -3-, in engine compartment wiring harness |
| D106 | Connection -4-, in engine compartment wiring harness |
| D108 | Connection -6-, in engine compartment wiring harness |
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