I’ve always had a similar creaking noise after having VB Air fitted to my T32, but I’ve retained the standard ARBs. So maybe it’s not just an H&R characteristic? Though I have always thought that the sound was coming from the front left and was maybe the strut top mount - but only done 30k miles (20k since having VB Air fitted).
The actual noise doesn’t bother me too much, but I do sometimes wonder if it is indicative of a problem - and that does worry me.
First time I drove the van, I found the rolling on sharp bends unnerving. So I had the OEM front ARB replaced with the H&R.
Which certainly reduced the roll.
I initially looked at VB because of self levelling, & free up space used by ramps.
But am now a big fan of everything air( excuse the pun).
When I took the van back to SAP to look at the problem, it was then I discovered that the rear ARB was H&R factory fitted.
As I said earlier, they said it was the ARB movement at the end mounts.
But I was surprised (as it turned out) they didn’t know that it was supposed to move. Which if you think, they must have installed air on a lot of VW Vans.
I know SAP have nothing to do with the ARB when installling the VB air, but you would think they would have some knowledge of how the H&R ARB is connected without drop links at the rear.
I spoke to VB , & they said they new of no problems with noise except when the hand or foot brake was on during lowering/raising the suspension.
To be honest, I got more help from Yvonne at H&R.
If you didn’t have the noise before you had the VB air installed ( for which you paid a lot of money), I would dig a little more, & try to discover the reason.