Dazza Tough Posted March 11, 2023 Share Posted March 11, 2023 The heating has stopped working correctly on my 2007 A6 TDI Quattro . On short journeys I have it on high but it blows only cold air , on longer journeys it would takes around 15 mins for the hot air to work but when I slow down in traffic it becomes cold air again . Any ideas what the issue is . TIA Quote Link to comment Share on other sites More sharing options...
Steve Q Posted March 12, 2023 Share Posted March 12, 2023 The engine temp gauge read normal. As it could be the thermostat. In failing that you could do a diagnostic check to see if any fault codes flag up as there could be an issue with the heater module, control unit etc. Quote Link to comment Share on other sites More sharing options...
Dazza Tough Posted March 12, 2023 Author Share Posted March 12, 2023 Hi. I had a diagnostic test done for another issue, it did show climate control module 2 issues ;1st air quality sensor reads short to ground and 2nd coolant re circulation pump reads upper limited exceeded Quote Link to comment Share on other sites More sharing options...
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