# 2004 Passat Buzzing under passenger dash

**URL:** <https://community.cartalk.com/t/2004-passat-buzzing-under-passenger-dash/69005>\
**Category:** Maintenance/Repairs\
**Tags:** volkswagen, passat\
**Created:** [October 27, 2011, 7:19pm UTC](https://community.cartalk.com/t/2004-passat-buzzing-under-passenger-dash/69005 "2011-10-27T19:19:10Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![bardica](https://avatars.discourse-cdn.com/v4/letter/b/ea5d25/32.png) [@bardica](https://community.cartalk.com/u/bardica)\
**Post date:** [October 27, 2011, 7:19pm UTC](https://community.cartalk.com/t/2004-passat-buzzing-under-passenger-dash/69005/1 "2011-10-27T19:19:10Z")

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Seems like some small motor having to do with heat/AC is constantly in action, generating an intermittent, yet constant buzzing noise (a bit like a buzz in a speaker but on and off like morse code). I had a mechanic look at it and he said that he might have to replace the entire electronic control panel for the heat/AC. Anyone familiar with this type of thing? If you are does the fix make sense? Thanks for any help/ideas you can offer.