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!
