No cold air - no error codes

Kev-in-Spain

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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
Kev
 
If your pipes are chilling you may have a temp blend flap issue. This can be actuated/tested with decent diagnostic interface.
 
Yeh i agree if your suction pipe is cold and assuming the pressure temperature relation is correct
You probably have a flap issue.


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