| A | Battery |
| B | Starter |
| C | Alternator |
| D | Ignition/starter switch |
| J59 | X contact relief relay |
| J218 | Combi-processor in dash panel insert |
| S10 | Fuse in fuse carrier |
| S204 | Fuse -1- (30) |
| T2ad | 2-pin connector, black, near alternator, in engine compartment, front right |
| T32 | 32-pin connector, blue, on dash panel insert |
| 51 | Earth point, luggage compartment, right |
| A17 | Connection (61), in dash panel wiring harness |
| A32 | Positive (+) connection (30), in dash panel wiring harness |
| A34 | Connection (75x), in dash panel wiring harness |
| E109 | Connection (30, central electrics), in dash panel wiring harness |
| L62 | Positive (+) connection (30a), in additional heater wiring harness |
| * | Models with auxiliary heater |
| ** | Models with additional heater (diesel engines) |
| *** | Ancillary water system |
| J162 | Heater control unit |
| J218 | Combi-processor in dash panel insert |
| J248 | Diesel direct injection system control unit |
| Q8 | Glow plugs with flame monitor |
| T2bl | 2-pin connector, on additional heater control unit |
| T6w | 6-pin connector, on additional heater control unit |
| T10c | 10-pin connector, green, connector point, electronics box, plenum chamber |
| T16a | 16-pin connector, diagnosis connection |
| T32b | 32-pin connector, grey, on dash panel insert |
| V6 | Combustion air blower |
| V54 | Metering pump |
| V55 | Recirculating pump |
| 43 | Earth point, lower part of right A pillar |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| E113 | Earth connection, in dash panel wiring harness, right |
| L35 | Connection -3-, in heater wiring harness |
| * | Models with auxiliary heater |
| ** | Models with additional heater (diesel engines) |
| *** | Does not apply to models with additional heater (diesel engines) |
| # | Models with diesel engines, AKE |
| ## | Models with diesel engines, AKF |
| ### | Only applies to 8-cylinder and 12-cylinder petrol engines |
| E87 | Control and display unit for air conditioner |
| J162 | Heater control unit |
| J218 | Combi-processor in dash panel insert |
| J541 | Coolant shut-off valve relay |
| N279 | Coolant shut-off valve, heater |
| T6w | 6-pin connector, on additional heater control unit |
| T32b | 32-pin connector, grey, on dash panel insert |
| E113 | Earth connection, in dash panel wiring harness, right |
| * | Bridge connector (from 10.00 up to 01.01) |
| ** | Introduced gradually |
| *** | Only applies to models with auxiliary heater (from 01.01 onwards) |
| # | Ancillary water system |
| ## | Does not apply to ancillary water system |
| ♦ | Only applies to 8-cylinder and 12-cylinder petrol engines |
| C20 | Solar cells |
| E87 | Control and display unit for air conditioner |
| J126 | Fresh air blower control unit |
| J355 | Solar operation control unit |
| S4 | Fuse in fuse carrier |
| S7 | Fuse in fuse carrier |
| T1h | Single connector, yellow, electronics box in footwell, front right |
| T2u | 2-pin connector, black, electronics box in footwell, front right |
| V50 | Coolant circulation pump |
| 43 | Earth point, lower part of right A pillar |
| A1 | Positive (+) connection (30a), in dash panel wiring harness |
| L2 | Connection, in air conditioner wiring harness |
| L9 | Connection -1-, in air conditioner wiring harness |
| L11 | Connection -3-, in air conditioner wiring harness |
| • | CAN bus (data wire) |
| * | Models without solar roof |
| ** | Models with solar roof |
| E87 | Control and display unit for air conditioner |
| J218 | Combi-processor in dash panel insert |
| J309 | Solar cell isolation relay |
| R | Radio |
| R36 | Telephone transmitter and receiver unit |
| R46 | Frequency divider for radio receiver and radio system |
| R51 | Radio/telephone/auxiliary heater aerial |
| R64 | Auxiliary heating radio wave receiver |
| S25 | Hot air blower single fuse |
| T1i | Single connector, yellow, electronics box in footwell, front right |
| T32a | 32-pin connector, green, on dash panel insert |
| V2 | Fresh air blower |
| 82 | Earth connection -1-, in front left wiring harness |
| L10 | Connection -2-, in air conditioner wiring harness |
| L15 | Connection (fresh air blower), in auxiliary heater wiring harness |
| * | Models without solar roof |
| ** | Models with solar roof |
| # | From 10.00 onwards |
| E272 | Function selection switch II, in centre console |
| J218 | Combi-processor in dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| T32b | 32-pin connector, grey, on dash panel insert |
| 269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
| A19 | Connection (58s), in dash panel wiring harness (switch illumination) |
| A121 | Connection (high bus), in dash panel wiring harness |
| A122 | Connection (low bus), in dash panel wiring harness |
| • | CAN bus (data wire) |
| * | Models with navigation system 'NS Low' |
