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Aircon issue. High pressure sensor open circuit. Any ideas?

sidibear May 27, 2020

  1. sidibear

    sidibear Going with the flow. Staff Member Moderator

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    2008 A4 B7 Avant 2.0 tdi.
    Econ light came on and stayed on. Had a mobile guy come and check it out. Pressure test showed leak from sensor, could hear it. That was swapped and taken to a Vag specialist to get the fault code cleared. Came up as $333/00819 030 High Pressure Sensor, open / short circuit to B+
    Code cleared but came back again. reported this to the aircon guy who admitted he didn't fit a genuine Audi sensor. He is returning again to fit the proper one when he gets it.
    Question is, would a pattern part throw this fault code and will the genuine one clear it?
    Or am I looking at something more sinister and expensive?
     
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  3. vag-tech

    vag-tech Site Sponsor Site Sponsor VCDS Map User

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    Potentially m, yes. Always oem when renewing.
     
    Sandra and sidibear like this.
  4. sidibear

    sidibear Going with the flow. Staff Member Moderator

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    So, its now been replaced with a genuine sensor. Local indy says its the compressor at fault and they need to change that before being able to investigate further, voltage to the sensor plug is giving 12v. Can't afford to pay out £800 for a new compressor from Audi, or £600 for similar part to be fitted before they can go any further.
    Would a faulty compressor give an open circuit to B+
     
  5. sidibear

    sidibear Going with the flow. Staff Member Moderator

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    Okey diddly dokey, got he full report now. Scan says internal damage to compressor so sending 12v to sensor to shut off system. Looks like its a new compressor. Just need to find out which one I need ! lol
     
  6. vag-tech

    vag-tech Site Sponsor Site Sponsor VCDS Map User

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    Can you post the fault code?
     
  7. sidibear

    sidibear Going with the flow. Staff Member Moderator

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    Aircon.jpg
     

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