Thanks for the replies.
I attached it as tight as I could against the plastic box and we had no issues at all. Sailed through the telepeages without a hiccup.

Hi All, I have just upgraded my old XF to a new XF which has a heated windscreen. As we travel to France a lot I have a telepeage badge for using the automatic barriers on the autoroutes. My new car has a heated windscreen. The instructions for the badge say to fit it in the black dotted area behind...

Thanks chaps that's a good idea. I'm wondering if I let it creep forward and then stopped it before properly trying to pull away and that might have confused things.
Rich

Hi. I wasn't sure which section to put this under, but this seemed like the best bet. I have had a 2014 2.2D R-Sport for nearly a year and have generally absolutely loved it. However, three times now (the latest being last night on the way home from work - hence the post) it has done something very ...