The clock in my 18 button OBC has packed up, the fuse is not blown so I picked up another OBC off ebay for a few quid.
This one is from a 328 of unknown age. I just had a brief browse through a few threads and am wondering if I made a mistake getting this OBC. Will all my fuel figures be out if I use this new one?
As an aside, how accurate are these things for MPG etc?