I was about to resurrect one of these threads... My cross has started showing the "4X4 mode unavailable". The solenoid/valve was replaced last January (like Paul I've yet to see any recall notice). It's already due to go to the garage on Friday for a recurring engine management fault (reading low fuel pressure last time) so with luck this may get sorted at the same time, I've told them the part that was replaced last time. Chris, from memory the part is about 40mm square by 15mm deep with a plunger coming out of one corner & a connector on the other side. Neil.