Quote:
Originally Posted by 650i2014
Do you hear the noise when the AC is off?
I experienced a similar noise for a few days (only when the AC was on), the day it was due to be inspected by the dealer it miraculously disappeared. The dealer was suspecting it could be the AC water drainage but they couldn't find anything wrong with it.
Give it a few days and it might disappear  |
Another poster on another forum seems to have hit it dead on. It is an air bubble in the heat exchanger. Probably would exist with the heat or A/C. I turned the fan off and the sound disappeared. That annoying noise has been going on for 4 months. Dealer said it was an intercooler...wrong.
Solution: drain/bleed the fan/heating/cooling circuit. Does anyone know how that is done?