Quick update. It's playing up again, not blowing cold now 
. Went to the dealers the other day & they tested the temperature & when it was set at 18 the actual temp was 24.5 & climbing so it's booked in again for further work. Must be some sort of leak in the system. Garage have been great, very apologetic for all the trouble just a bit of a pain now the weather is warming up.
...........sorry for the late up-date. Had the car back a few weeks now & the condenser was broke?. New one fitted under the warranty & all is good.
