Ta GC.. Aircon.. Don't really use it that much...like i said no load on engine first thing... No blocked vents, usually only me in it....convinced all is working as should battery up at top and gets used etc etc... All 5 stages as should be but stage one seems to be more than i would expect.. Although after a 10 min drive, a 45 min break and then restart the engine did not kick in last night for most of journey back....was warm here last night though.. On a 19 mile commute i get 60 plus mpg but on my short 6 mile commute just getting 53 ish... The answer is work further from home and use a block heater first thing..lol....will monitor engine use more now you confirmed you have had issues... New egr ( thought only diesels had them nasty things!) and ecu... Expensive no doubt...