Thanks Kevin and Keith for your replys
The pump on this model is by the nearside rear whell in a plastic box, we removed the box and deflated the suspension then ran the car up the pump was very noisy, spoke to our local dealer who said that when they get these in with problems the first job they do is put pump on no matter what( not always good for customer pocket) but any way they have pumps in stock, after reading the live data and the pump temp which looked high between 68 and 90 and the noise from pump we put new one on £315+vat. Fitted ok cleared code re set hieghts and all ok.