RRS compressor noise

[Pilbara130]

Hi all

My 08 RRS has a hissing noise come from the compressor under the drivers side undercarriage when ever it goes over a bump.
Is this normal ? You can only here it when the window is down.I also get a random suspension fault come on after driving for about 120-140 kilometres. Will need to drive it down south to get it looked at.
Any one had the same faults.

Cheers

Dan

[Fatso]

Could be a loose air supply connection at the control valve situated in front of the drivers front wheel , can see if you lift the plastic wheel arch away at the bottom , or it could be the air supply from this control valve to the top of the air suspension strut which has a locking nut to secure the airline in place . A wiggle of either may show up something .

[Pilbara130]

Thanks mate ill have a play with that when I'm home on Monday.
Dan