Given the consistency with which mine shows 27.5 I'm not sure that's correct, or at least, there's more than one reading. I usually leave it on range, but if the NAV is in use that's overwritten by the NAV instructions (black panel display) and toggling with the BC button temporarily brings back range then the outside temp. But does mean cycling through average mpg, which is always 27.5, and average speed which is almost always 37.4 from memory, to get there. I use the split screen in th centre to toggle between the trip computer and entertainment details alongside NAV, and that shows significantly different reading for average consumption and speed.
Last edited by: PeterS on Mon 25 Sep 17 at 22:26
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