Whistling sounds with AC on
 

Hello Guys,

just want to check if it's ok or not
I only here whistling sounds when I push the accelerator pedal with AC on.
doesn't matter if I turn on the AC all the way up to max or min.
sounds like air suction, almost same as my 325ci with aftermarket intake.
is this a normal sound? or I have some problem?
btw, I have 2005 X5 4.4i

Thank you! :thumbup:

Which vents do you hear the whistle out of? Mine seems to whistle out of vents above the NAV Display

same as yours,
above the NAV screen.

I posted on the windshield problem (loosening on top, losing contact with upper frame) and high pitched sound resulting at speeds >70 mph which would stop the moment you put some firm pressure on the inside of the uppermost part of the windshiled.

Don`t know is this might help?

Cheers,