So a few week's ago, I went over to Hull in my V70 R, and after travelling through torrential rain most of the day my ABS light has been intermittent. Today, I've travelled back from Dudley to Home(120 miles or so) in my C70 through torrential rain and hail and now the ABS light is on in that car as well.

Can this/does this happen in extreme conditions and how long will they stay on for if there aren't any underlying issues? V70 is pre ME7 and the C70 is ME7, for what that's worth................and I had the reluctor rings done on the C70 last year.