| A | Battery |
| G18 | Temperature sensor |
| J162 | Heater control unit |
| J218 | Combi-processor in dash panel insert |
| K | Diagnosis connection |
| Q8 | Glow plug with flame monitor |
| S24 | Heater overheating fuse |
| S62 | Auxiliary heater fuse, in electronics box, plenum chamber |
| T2at | 2-pin connector, black, on auxiliary heater control unit |
| T6z | 6-pin connector, on auxiliary heater control unit |
| T15m | 15-pin connector, white, connector point, A pillar, left |
| T16a | 16-pin connector, diagnosis connection |
| T32 | 32-pin connector, blue, on dash panel insert |
| V6 | Combustion air blower |
| V54 | Metering pump |
| V55 | Recirculating pump |
| 1 | Earth strap, battery - body |
| 146 | Earth connection -1-, in aux. heater wiring harness |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| E9 | Fresh air blower switch |
| E15 | Heated rear window switch |
| J8 | Auxiliary heater relay |
| J13 | Fresh air blower (auxiliary heater) relay |
| J214 | Thermotronic control unit |
| J347 | Ultra-sonic sensor control unit |
| N6 | Series resistor |
| N24 | Fresh air blower with overheating fuse series resistor |
| S244 | Fuse in fuse box |
| T2ah | 2-pin connector, blue, connector point, A pillar, right |
| T3z | 3-pin connector, white, connector point, left A pillar |
| V2 | Fresh air blower |
| 44 | Earth point, lower part of left A-pillar |
| 135 | Earth connection -2-, in dash panel wiring harness |
| 146 | Earth connection -1-, in aux. heater wiring harness |
| 199 | Earth connection -3-, in dash panel wiring harness |
| A32 | Positive (+) connection (30), in dash panel wiring harness |
| A78 | Connection (30a, fuse 244), in dash panel wiring harness |
| L14 | Connection (75al), in auxiliary heater wiring harness |
| * | Models with anti-theft alarm system with interior monitoring |
| ** | Models without air conditioner |
| *** | Both possible |
| D | Ignition/starter switch |
| E16 | Heating switch, heat output |
| E111 | Pre-selection clock |
| E255 | Pre-selector clock switch |
| J218 | Combi-processor in dash panel insert |
| K11 | Heater warning lamp |
| R64 | Auxiliary heating radio wave receiver |
| S5 | Fuse in fuse box |
| S15 | Fuse in fuse box |
| S225 | Fuse in fuse box |
| S226 | Fuse in fuse box |
| T8d | 8-pin connector, brown, in driver's door |
| T10ap | 10-pin connector, blue, connector point, A pillar, left |
| T15m | 15-pin connector, white, connector point, A pillar, left |
| T32 | 32-pin connector, blue, on dash panel insert |
| 146 | Earth connection -1-, in aux. heater wiring harness |
| A1 | Positive (+) connection (30a), in dash panel wiring harness |
| A2 | Positive (+) connection (15), in dash panel wiring harness |
| A8 | Positive (+) connection (58d), in dash panel wiring harness |
| A19 | Connection (58s), in dash panel wiring harness |
| A20 | Positive (+) connection (15a), in dash panel wiring harness |
| A52 | Positive (+) connection 2 (30), in dash panel wiring harness |
| * | Auxiliary heater with radio-operated remote control, remote control aerial see Current Flow Diagram air conditioner with auxiliary heater |
