On my way down to the new forest the fail safe management message came on on the dashboard and all power was lost . Turned off the engine as we just made it to services and started it again and it was fine for a while . Now we are at the new forest it does it every 10 minutes or less any ideas anyone and does anyone know of a jag specialist nearby that could help . My car is a 1999 3.0 se we are staying at Milford on sea near lymington