Furthermore, I am not sure that the Mk 7 Software would have intervened and slowed a car from 70 to 20 mph on a motorway because of a Satnav glitch.
It would only do that if you had travel assist on... if you had just automatic cruise control (without the extra that is speed recognition) then it would have been fine...
There are three things which could cause that fail btw.
One is the emergency assist unit rebooting (did you hear a double click followed by the infotainment reboot)
Next is that it read a road sign incorrectly - visible road signs can cause it to think its for the road you are on.
Lastly a total satnav glitch which put you in a place with a different speed limit.... this could be a VW fault OR could be the result of GPS spoofing/jamming....which these days is a possibility with those guys in the furry hats spewing stuff from their homeland.
I had one yesterday that came up with something like bong! "no data available in this area" and it flat out wouldn't display any speed limit data at all. I wasn't on the motorway, I was down some country lanes and not using travel assist. Never seen it before...
Thanks Fred. Yes, I was aware which systems were running at the time and, as I mentioned earlier, I also noticed that my Satnav thought I was - in a 20 mph limit side street - around 10 miles or so away from where I was actually located. This annoying issue continued on my journey for several more miles and, when I got home 30 mins later, my satnav suggested that I was even further away, in completely the wrong direction.
I have no idea whether the above issue was in any way related to the problem I experienced a few weeks previously, with the Infotainment system freezing on a 150 mile trip. Personally, I don't think it was.
Anyway, I have now had the work done at the dealers (i.e. 5F Control Unit replaced) and, so far, experienced no further issues with Bongs, freezes, misleading Satnav or anything else.
Fingers crossed!