• Mine is taking days to drain rather than hours. I'm quite happy changing the hedgehog, but based on what I've read online, I don't think that's the problem, I think it's just a dying battery.

  • Ahh sorry, thought you said hours.... Mine was draining overnight, it was very sudden. We had gone from London to Cornwall 1 day, woke up the next day and the battery was flat.

  • No problem, Google just keeps bringing back this heater control issue, but I have none of the symptoms of that so I don't think it is.

    Other options on slow battery drain are pointing to:

    Traffic Master module
    DVD drive ejecting, re-loading, and ejecting the nav disc while the car is off

    I don't think it's either of those things though, but if it is I'll be upset if my new battery dies every 4 days meaning that after I find the drain I need to replace that one with another new one.

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