Components for control and regulation of air conditioner located in passenger compartment |
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| In the event of a fault in the air conditioner, start by reading out the event recorder of the air conditioner operating and display unit, Climatronic control unit -J255- → "Guided fault-finding" function of vehicle diagnostic, testing and information system VAS 5051. If the display indicates that the event recorder of another control unit is to be read out, read out the event recorder of this control unit as well (e.g. onboard supply control unit -J519-, convenience system central control unit -J393-). Certain air conditioner components (e.g. air conditioner compressor regulating valve -N280-, refrigerant pressure and temperature sender -G395-) are no longer actuated directly by the air conditioner operating and display unit, Climatronic control unit -J255- or their measured values are no longer evaluated directly by the air conditioner operating and display unit, Climatronic control unit -J255-. |
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| Refrigerant circuit servicing work is described as of → Chapter. |
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| Interrogate the event recorder of the air conditioner operating and display unit, Climatronic control unit -J255- and erase any faults displayed. |
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| Check the encoding of the air conditioner operating and display unit, Climatronic control unit -J255-. |
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| Check the adaption of the air conditioner operating and display unit, Climatronic control unit -J255-. |
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| Perform air conditioner basic setting. |
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| Components located in passenger compartment → Chapter |
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