| Component code | Name | Assembly reference | 
|---|
| B1 | Engine compartment junction unit | - | 
| B1 | Engine compartment junction unit | 5505A | 
| B2 | Junction unit under dashboard | 5505A | 
| B5 | MAXI FUSE box | - | 
| B98 | Supplementary fuse box | - | 
| B99 | Maxifuse box on battery | 5530B | 
| C15 | Facia earth, driver's side | - | 
| C38 | Earth on centre tunnel | - | 
| D8 | Front coupling / air conditioner
              - with heating | - | 
| D20 | /Rear dashboard coupling | - | 
| D45 | Sunroof connection | - | 
| H1 | Ignition switch | 5520A | 
| H60 | Sun roof switch | 7030B | 
| M1 | Body computer | 5505A | 
| M70 | Climate control system control unit | 5040D | 
| N35 | Sun roof motor | 7030B | 
| P93 | Receiver aerial for alarm and central
              locking | - |