I have a 2010 Impreza 1.5RX, 1 owner (me) and FSH. It has has added 10,000 miles to the odometer over night, going from 9000 miles to 19000 miles.

I took it to the local Subaru dealer in Ashton (Appleyards) who are clueless. Has anybody else had a similar issue and what may have caused the issue?

Thanks

 

You can get people that will plug your car in to a laptop, give it a 'hair cut' and loose a few miles so you can get it put back but that's not really fixing the issue.