I wrote some weeks ago about the battery on my Range Rover 4.6 going flat every couple of weeks and received some helpful ideas - thanks. Land Rover have had it for 3 weeks now, trying to isolate the leak. They tell me that they have disconnected each circuit but still cannot find it. Now they have replaced the body control unit and find that the leakage appears to have stopped. Their next test is to replace the old BCU to see if the leakage comes back - if so they will conclude that the problem was the BCU and no doubt bill me accordingly!! Any thoughts on this would be appreciated. Thanks.