Update - last one hopefully.
I have had my
replaced (£202) and it looks like it has corrected the erratic idle I had.
So as well as the above I've had the car serviced and mot'd (passed
, rear axle bushes will also be ok for a while)
All told £465, which might seem alot but the guy did a lot of work, and i know its been done right, and I'm sure at a dealer I would have added another 200-300.