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No cold air - no error codes

Kev-in-Spain Aug 12, 2017

  1. Kev-in-Spain

    Kev-in-Spain New Member

    Hi all,
    Sorry if this is a repeat post but I've had a look through this section of the forum and none of the other posts seem to fit my issue:
    Audi A3 1.9tdi 2003 Slimline:
    The aircon stopped working and the diagnosis was a failing/failed compressor. I had it replaced, together with the expansion valve and, obviously, re-gassed.
    The system still blows no cold air, although the air-con tubes do get cold, but the diagnostic scan returns no error codes.
    So my question is, what would be the next thing to check? Is there a common part failure on this model that I should look at?

    Thanks in advance
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  3. vag-tech

    vag-tech Site Sponsor Site Sponsor Team Ibis VCDS Map User Audi A3

    If your pipes are chilling you may have a temp blend flap issue. This can be actuated/tested with decent diagnostic interface.
  4. tyr382

    tyr382 Member

    Yeh i agree if your suction pipe is cold and assuming the pressure temperature relation is correct
    You probably have a flap issue.

    Sent from my iPhone using Tapatalk

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