# Heating system frozen!

**URL:** <https://community.cartalk.com/t/heating-system-frozen/54099>\
**Category:** Maintenance/Repairs\
**Tags:** audi, heating, a4\
**Created:** [August 24, 2010, 8:22pm UTC](https://community.cartalk.com/t/heating-system-frozen/54099 "2010-08-24T20:22:19Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![arienmack](https://avatars.discourse-cdn.com/v4/letter/a/ecb155/32.png) [@arienmack](https://community.cartalk.com/u/arienmack)\
**Post date:** [August 24, 2010, 8:22pm UTC](https://community.cartalk.com/t/heating-system-frozen/54099/1 "2010-08-24T20:22:19Z")

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The heating/ac system in my 2000 A4 Audi wagon is frozen. i cannot turn off the fan or change the temperature setting or simply turn off the system

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**Author:** ![Caddyman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/caddyman/32/23_2.png) [@Caddyman](https://community.cartalk.com/u/Caddyman)\
**Post date:** [August 24, 2010, 8:30pm UTC](https://community.cartalk.com/t/heating-system-frozen/54099/2 "2010-08-24T20:30:50Z")

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You can pull the fuse marked “heater” until you see your friendly Audi Dealer…

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**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\
**Post date:** [August 24, 2010, 8:58pm UTC](https://community.cartalk.com/t/heating-system-frozen/54099/3 "2010-08-24T20:58:49Z")

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Yeah, let me guess-it has 50-60,000 miles on it. There must be an HVAC controller or relay that needs replacing but I shudder to think what the cost is.

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**Author:** ![arienmack](https://avatars.discourse-cdn.com/v4/letter/a/ecb155/32.png) [@arienmack](https://community.cartalk.com/u/arienmack)\
**Post date:** [August 24, 2010, 11:09pm UTC](https://community.cartalk.com/t/heating-system-frozen/54099/4 "2010-08-24T23:09:00Z")

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thanks for your reply even if it’s upsetting.  
arien

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**Author:** ![americar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/americar/32/42_2.png) [@americar](https://community.cartalk.com/u/americar)\
**Post date:** [August 25, 2010, 12:28am UTC](https://community.cartalk.com/t/heating-system-frozen/54099/5 "2010-08-25T00:28:09Z")

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When you go to the dealer bring au di money.

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**Author:** ![arienmack](https://avatars.discourse-cdn.com/v4/letter/a/ecb155/32.png) [@arienmack](https://community.cartalk.com/u/arienmack)\
**Post date:** [August 25, 2010, 1:05am UTC](https://community.cartalk.com/t/heating-system-frozen/54099/6 "2010-08-25T01:05:13Z")

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You’re right. I wish I had it!