Heater Making buzzing Sound Audi A4 Black Edition 3.0 TDI V6 Quattro


Registered User
I have a 2014 Audi A4 3.0 TDI V6 Black Edition Quattro
  • The buzzing noise only happens after you have been driving for 2 minutes.
  • It only happens when the engine is on.
  • It only happens when its above 19 degrees when temperature is on low the sound fades off
  • I think it stops when the stop start system kicks in and turns engine off but starts again after engine comes on. (haven't been in enough traffic to be 100% certain on this)
  • The sound stops when the heater is turned off.
  • The sound comes from the dashboard area in front of the steering wheel
  • The sound reminds me of what happens when a speaker is picking up electrical static.

Link to a video of the buzzing sound https://drive.google.com/file/d/0B8jx_uGs9P6WRi16RHJKOVBrVGs/view?usp=sharing

Car has been into the dealers they changed the AirCon pump under warranty thinking that would solve it, now they are saying they checked on a like for like model that did the same thing after 19 degrees. They says it must be a characteristic of this model. Does any one else have this issue its really annoying & Im sure this never used to happen with my vehicle nor the other 6 I test drove.

Any questions let me know