Roomster
| Summary of components heater unit |
| 1 - | Fresh air blower series resistor -N24- |
| q | with overheating fuse |
| q | removing and installing → Chapter |
| 2 - | Fresh air flap and re-circulating air flap control motor -V154- |
| q | removing and installing → Chapter |
| 3 - | Fresh air blower -V2- |
| q | removing and installing → Chapter |
| 4 - | Dust and pollen filter |
| q | also as combination filter with odour filter |
| q | removing and installing → Chapter |
| q | pay attention to change intervals → BookletRoomster |
| 5 - | Flex shaft |
| q | for positioning unit for temperature flap |
| q | for positioning unit for air distribution flaps |
| q | removing and installing → Chapter |
| 6 - | Heater control |
| q | with fresh/re-circulating air flap control unit -J251- |
| q | with fresh-air blower switch -E9- |
| q | with fresh and re-circulating air flap switch -E159- |
| q | must be replaced completely |
| q | removing and installing → Chapter |
| 7 - | Heating element for air auxiliary heating -Z35- |
| q | only fitted on certain models |
| q | Summary of components → Chapter |
| q | removing and installing → Chapter |
| 8 - | Heat exchanger |
| q | Summary of components → Chapter |
| q | removing and installing → Chapter |
| 9 - | Control motor for temperature flap |
| q | removing and installing → Chapter |
| 10 - | Gasket with holder |
| q | clipped into heater unit |
| q | replace if damaged |