rmswenson747
09-25-2016, 06:16 AM
hi... looking for some help... 2011 328xi ringing noise, that appears to be coming from the dash area. very hard to pinpoint an exact location, as it seems to be from different places depending on where you are listening from. kinda sounds like a steady 'chime' sound on an iphone.
1) ringing/tinging noise is consistent, doesn't change in pitch or volume with engine, wheel, or blower fan speed
2) only occurs when the climate control unit is ON. by lowering the fan speed to lowest setting, when the climate control unit 'shuts off', with no lights on, the noise stops
3) noise occurs with AC both On and Off.
4) weird part... while driving, while turning to the left, often but not always, the noise stops. when i straighten out, the noise returns. turning right does not impact the noise
i have read that the E46 climate control unit has a constant speed internal fan that can cause similar noise. does anyone know if the E90 has a similar fan that might need cleaning/lubrication?
pic of my climate control below... any other thoughts? thx.
583066
1) ringing/tinging noise is consistent, doesn't change in pitch or volume with engine, wheel, or blower fan speed
2) only occurs when the climate control unit is ON. by lowering the fan speed to lowest setting, when the climate control unit 'shuts off', with no lights on, the noise stops
3) noise occurs with AC both On and Off.
4) weird part... while driving, while turning to the left, often but not always, the noise stops. when i straighten out, the noise returns. turning right does not impact the noise
i have read that the E46 climate control unit has a constant speed internal fan that can cause similar noise. does anyone know if the E90 has a similar fan that might need cleaning/lubrication?
pic of my climate control below... any other thoughts? thx.
583066