The first being the rear end sinking with the engine off even from high setting. I gave it a good bleeding but there didn't seem to be any air coming out, then I came to the realisation that when on the high setting it only sinks if the door or tail gate is open, so the conclusion is that the electrovalve I replaced must be leaky, which would also explain why it sinks quicker than normal when left parked up.
Next I found the source of the mystery knock from the front suspension. Having replaced every component bar the struts and hub I was at a bit of a loss, but the problem revealed itself today by pure chance while replacing the copper washers on the autobox oil return pipe which was weeping again, probably due to using aluminium washers previously.
Anyway, I digress, with the wheel off I noticed a rub mark on my shiny new lower arm just where the anti roll bar passes it on the bend, so it would seem that when I threw it all back together the ARB wasn't properly centralised and was just clipping the lower arm as they passed. A bit of leverage with a lump of wood has now repositioned the ARB to a more central position.
Finally, thanks to Jim, I fitted the roof rack screws in the empty holes so should now stay dry under the rear seats.
