Car died at home, so called the AA although I didn't have home start on my policy. £85 to add it Jez! which they now give out free to new customers great!! Arrival time was however pretty decent. Battery was dead so he charged it up and got my car going, diagnosed that something was causing a drain on my battery. Did not advise a battery replacement. Make a note here as the first mistake he made was to charge the battery before diagnostics. So.... my battery dies again two days later at home, but this time my immobiliser kicked in (to many start attempts) and killed the car. So I called out the AA again. He could not figure out what was going on but was sure that charging the battery would get me going based on the first visit. No go immobiliser refused any start. Vehicle was recovered to my local BMW garage by the AA. BMW sorted out the immobiliser issue and re-coded my keys, no mention of any battery drain issue with extensive testing on the battery apparently, which cost me £125 lol. 3 days later car dies again at Home - So AA out once more, explained what had been going on with the past few AA visits and the BMW trip. So he ran a diagnostics on the battery before he did anything else and stated the battery itself was in-serviceable and needed replaced at a cost of £164. I had no choice and by this time was convinced myself that the battery was the problem so went ahead with it (the new battery sorted the problem car has been fine ever since 5 months now). Can't fault the chap that visited the last time he knew what he was doing. He also said that his AA colleague on the original visit had made a schoolboy error by charging the battery first before diagnostics and BMW were much the same charging the battery before diagnostics (if they even ran any). A total of £374 in a week.