| Component code | Description | Reference to the assembly |
|---|
| B1 | Engine compartment junction unit | 5505A |
| B2 | Junction unit under dashboard | 5505A |
| B38 | Additional heater fuse | - |
| B99 | Maxifuse box on battery | 5530B |
| C10 | Left front earth | - |
| C11 | Right front earth | - |
| C15 | Driver''s dashboard earth | - |
| C16 | Air conditioning unit earth | - |
| C20 | Passenger dashboard earth | - |
| C30 | Left rear earth | - |
| D4 | Front - engine coupling | - |
| D6 | Front - rear coupling | - |
| D8 | Air conditioning-heater front coupling | - |
| D22 | Additional heater coupling | - |
| D97 | Short circuit coupling | - |
| H1 | Ignition switch | 5520A |
| I50 | Inertia switch | - |
| K79 | Air temperature sensor (additional heater) | - |
| M1 | Body Computer | - |
| M70 | Climate control sytem control unit | 5040D |
| M74 | Additional heater remote control receiver | - |
| M75 | Additional heater control unit | 5040D |
| N44 | Additional heater electric pump | - |
| N85 | Passenger compartment air fan | 5040C |
| N140 | Additional heater | - |
