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Old 25th February 2020, 01:23 PM
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Originally Posted by funkmiester View Post
The door module was a red herring. It was not working but not the cause of the car's insomnia/batter drain.The car returned just after new year, not fixed but problem identified as the diagnostic module 4Ho907468F. I have been running the car with this module disabled by pulling the fuse and the car has been fine. I have located a second hand one and it will be fitted when I get the chance. All that work and it turns out to be the diagnostic module not allowing the car to sleep. Time will tell whether the replacement is a full fix. Thought I'd keep this updated as there is nothing anywhere on the internet about a faulty diagnostic module or this type of battery drain.
Thanks that's very useful to know - not heard about that particular issue anywhere yet but a lot of this type of issue will no doubt come out of the woodwork over coming years!
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