# Heater blows cold air

**URL:** <https://community.cartalk.com/t/heater-blows-cold-air/38167>\
**Category:** Maintenance/Repairs\
**Tags:** audi, a4\
**Created:** [October 16, 2009, 3:19am UTC](https://community.cartalk.com/t/heater-blows-cold-air/38167 "2009-10-16T03:19:46Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![hfamili](https://avatars.discourse-cdn.com/v4/letter/h/3da27b/32.png) [@hfamili](https://community.cartalk.com/u/hfamili)\
**Post date:** [October 16, 2009, 3:19am UTC](https://community.cartalk.com/t/heater-blows-cold-air/38167/1 "2009-10-16T03:19:46Z")

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Driving a 2001 Audi A4 with 130K - The weather is starting to get cold here in Dallas. Noticed the heater is just blowing cold air no matter how high I turn the temperature. Is this a quick fix? And if so, can you provide some instructions?

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**Author:** ![Roadrunner](https://avatars.discourse-cdn.com/v4/letter/r/d2c977/32.png) [@Roadrunner](https://community.cartalk.com/u/Roadrunner)\
**Post date:** [October 16, 2009, 11:30pm UTC](https://community.cartalk.com/t/heater-blows-cold-air/38167/2 "2009-10-16T23:30:50Z")

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The temp control switch may be at fault.

The blend door motor (that controls a door to direct cold air or hot air between the outside vents/A/C and the heater) may be faulty.