| t
| Atmospheric temperature of more than 15°C. |
| t
| Radiator and condenser clean, if necessary, clean them. |
| t
| The Poly-V belt for the operation of the compressor is in good condition, tense and pulley action to the compressor must be OK. |
| t
| All air ducts, covers and seals OK and properly fitted. |
| t
| The air flow through the dust and pollen filter is not obstructed by dirt. |
| t
| The air intake (in fresh air and air recirculation position) should be clear of any obstruction or components. |
| t
| The vehicle should not be in direct sunlight. |
| t
| The engine must be warm. |
| t
| The fault memory of the Climatronic control unit (01320) -J255-/Air conditioning control unit -J301- has been interrogated and cleared, the basic adjustment has been completed and the coding of the Climatronic control unit (01320) -J255-/Air conditioning control unit -J301- → Vehicle diagnosis, testing and information system VAS 5051 has been checked. |
| t
| Open all instrument panel vents. |
| t
| Settings on the Climatronic control unit (01320) -J255-: |
| –
| Temperature preselection at lowest (for driver and passenger side). |
| –
| Compressor activated (the function “Econ” is not activated). |
| t
| Functions with engine running |
| –
| The Coolant ventilator (01018-3433) -V7- is operating (the speed depends on the pressure in the refrigerant circuit and on the engine temperature). |
| –
| The Fresh air turbine (01273-4124) -V2- is working at maximum. |
| –
| The air conditioner switches to air recirculation mode (approx. 1 minute after the engine is started and the fresh air / air retention flaps close, the air recirculation flap opens, air is taken in by the Fresh air turbine (01273-4124) -V2- of the passenger compartment underneath the instrument panel / glove compartment). |
| t
| Settings on the Air conditioning control unit -J301- |
| –
| With the button “AC” pressed, the speed “1” of the Fresh air turbine (01273-4124) -V2- is selected along with the lowest possible temperature. |
Note! |
|
|
