Anyone know what this is? It seems to be fuel system related, as it has what look to be fuel hoses going into it, but the only reference I can find seems to be ABS-related. Its the size of a kids lunchbox and has WABCO embossed on it.
Ah, I think we have identified the source of my battery drain
When parked up, there is a click coming from this box (can feel it when it clicks) every 20 seconds or so. Given that the air suspension was removed years ago, I suspect that pulling the fuse would be a good move.