Yea I know, how random is that. Since new the ISG had rarely kicked in, not that I was that bothered and got used over these 4 years that it would just never meet whatever the criteria was. Today after a short motorway journey, 16 miles, then back through town roads and at every light the ISG kicked in. At first it threw me and I actually thought I had stalled the car! I have recently had the battery replaced so I can only believe that this is a factor. My January mileage was a little over 26 miles so not much driving time at all. Thought I post up as it is just unusual for it to actually work.