2015 Discovery Air Suspension

[janstey58]

Hi All, We just purchased a new to use Discovery and have used it only a few camping days. I noticed yesterday when I went to park it after a drive and dump the air, the system made a strange whistling noise along with the normal dumping air sound. Has anyone had this problem and what may have caused this? The system works well otherwise. Thx!

[janstey58]

Thanks! I called Freightliner and they gave me the same advice!

[et2]

Our Expedition has done that since 2013 off and on. Nothing to worry about IMHO. It's always worked as designed.