Hi all, sorry about the delay in getting back on this, i never realised that I had any further replies from anyone
I have came out of a 2007 X5 with 19 inch run flats (although i changed them to non run flats due to excessive wear)
I hadn't considered reducing my tyre pressure as has been suggested but will consider it.
i feel as though the problem is a little intermittent thopugh as sometimes it seems really bad and other times not so... You really do begin to doubt yourself sometimes though