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Old 23rd February 2020, 04:36 PM
funkmiester funkmiester is offline
Join Date: Sep 2011
Posts: 48

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.
S8FRD 2002 D2 S8 on LPG 213K just passed MOT, again, no issues. Owned since 2007
**60*** Unicorn, 2012 D4 Havana Black, 4.2TDI ~60K miles Cream Leather, 25K of Factory extras including B+O Owned since 04/2018
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