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    Thread: 98 blows hot air

    1. 05-11-2012 07:43 PM #1
      all the time!
      The speed adjustment works fine, but will not blow cold/warm, only full hot all the time!
      Where should I start to diagnose this issue?


    2. Member CajunSpike's Avatar
      Join Date
      Mar 11th, 2009
      New Orleans, LA
      91 Burgundy Etienne(2), 06 Jetta 2.5, 08 GTI 2.0T FSI
      05-11-2012 08:30 PM #2
      Have the a/c coolant pressure checked to see if you have any. If a leak developed and you lost the r134, it won't get cold.

      Also, the mk1's have a heater control valve which lets hot water flow past even when its closed, when it fails. Not sure if mk3's have same type valve..probably so. If thats bad...won't cut off hot engine water and will always have hot air out the a/c system.
      Last edited by CajunSpike; 05-11-2012 at 10:09 PM.

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