M4rkL Posted December 22, 2021 Share Posted December 22, 2021 Hi can someone help , my 2013 A3 2.0tdi has started to blow luke warm air when blowers on. Just had cooling system and heater matrix flushed at my local garage i use all the time only 4 days ago worked fine, now its back to blowing luke warm air. Temp gauge normal, matrix pipes hot, rad pipes ok and doesn't use any coolant. Never used any coolant even before flush. Any help Quote Link to comment Share on other sites More sharing options...
Steve Q Posted December 23, 2021 Share Posted December 23, 2021 Sounds like you've had some good work done. Your next steps could be to change the thermostat or get a diagnostic check to see if there are any fault codes regarding the heater control module/, switchgear Quote Link to comment Share on other sites More sharing options...
M4rkL Posted December 23, 2021 Author Share Posted December 23, 2021 Cheers for the reply Steve Q, had a diagnostic check at the garage and no fault codes came up, looks like next thing to do is to change stat. Garage mentioned something about some bag in the expansion tank do you know anything about this, Many thanks Quote Link to comment Share on other sites More sharing options...
greysquirrel Posted December 23, 2021 Share Posted December 23, 2021 Mine's the same, I just thought that's how they are, had it nearly 3 years and never used any coolant, but heater never gets hot, just warm. Quote Link to comment Share on other sites More sharing options...
greysquirrel Posted January 31, 2022 Share Posted January 31, 2022 On 12/22/2021 at 8:19 PM, M4rkL said: Hi can someone help , my 2013 A3 2.0tdi has started to blow luke warm air when blowers on. Just had cooling system and heater matrix flushed at my local garage i use all the time only 4 days ago worked fine, now its back to blowing luke warm air. Temp gauge normal, matrix pipes hot, rad pipes ok and doesn't use any coolant. Never used any coolant even before flush. Any help Have you had this sorted? Just my heater has never blown hot, and the temp never goes above 75, I'm suspecting my thermostat too. Quote Link to comment Share on other sites More sharing options...
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