A3 Mk2
| Checking, removing and installing components |
| 1 - | Heater controls/heater control unit -J65- |
| q | Different versions depending on vehicle equipment (with and without heated driver seat regulator -E94- and heated front passenger seat regulator -E95-) → Electronic parts catalogue |
| q | Function, removing and installing → Chapter |
| 2 - | Heater controls/base plate |
| q | Removing and installing → Chapter |
| 3 - | Bowden cable for temperature adjustment |
| q | Removing and installing → Chapter |
| 4 - | Flexible shaft |
| q | To gear mechanism/cam plate for actuation of air distributor flaps |
| q | Removing and installing → Chapter |
| 5 - | Heater |
| q | Removing and installing → Chapter |
| q | Detaching add-on components from heater/re-attaching → Chapter |
| q | Dismantling and assembling heater → Chapter |
| q | Dismantling and assembling air duct → Chapter |
| 6 - | Dust and pollen filter |
| q | Removing and installing → Chapter |
| q | Heed replacement intervals → Maintenance tables |
| q | Different versions of the dust and pollen filter are available as replacement part (with and without activated charcoal element) → Electronic parts catalogue |
| q | Notes on version with activated charcoal filter element → Chapter |
| 7 - | Fresh air blower series resistor with overheating fuse -N24- |
| q | Removing and installing → Chapter |
| 8 - | Fresh air blower -V2- |
| q | Removing and installing → Chapter |
| 9 - | Intake housing with fresh air/air recirculation flap |
| q | Removing and installing → Chapter |
| 10 - | Fresh air and air recirculation flap control motor -V154- |
| q | Checking operation → Chapter |
| q | Removing and installing → Chapter |
| 11 - | Gear mechanism with cam plate for actuation of air distributor flaps |
| q | Not to be detached, setting cannot be re-established. |
| 12 - | Grommet |
| q | Insert in vehicle bulkhead before fitting heater → Chapter. |
| q | Installing → Chapter |
| 13 - | Foam spacer |
| q | Fitted between grommet and heater |
| 14 - | Actuating arm for actuation of temperature flaps |
| 15 - | Heating system heat exchanger |
| q | Removing and installing → Chapter |
| 16 - | Supplementary air heater element -Z35- (with supplementary air heater control unit -J604-) |
| q | There are different versions of the electric supplementary air heater. On vehicles with diesel engine manufactured up to November 2006 (gradual conversion), the supplementary air heater element -Z35- is actuated by way of the supplementary air heater control unit -J604- → "Guided fault-finding" function of vehicle diagnostic, testing and information system VAS 5051. Vehicles with diesel engine manufactured as of November 2006 (gradual conversion) are fitted with a 3-stage supplementary air heater element -Z35- which is actuated by the corresponding engine control unit via a relay → Chapter and → Current flow diagrams, Electrical fault finding and Fitting locations. |
| q | Vehicles with diesel engine and „auxiliary heater“ optional extra are currently also fitted with a supplementary air heater element -Z35-. At a later date (introduction not yet finalised), the supplementary air heater element -Z35- is to be discontinued on these vehicles. The „auxiliary heater“ will then assume the function of the „supplementary heater“ → Auxiliary heater; Rep. gr.82. |
| q | Checking operation of supplementary air heater control unit -J604-, guided fault-finding procedure → "Guided fault-finding" function of vehicle diagnostic, testing and information system VAS 5051 |
| q | Removing and installing → Chapter |
