Citroen Xsara Estate - Athermic windscreen. Mio168 with TTN5.21.
Trying to get a lock inside the car takes forever, if at all.
Holding unit outside window, sometimes works fairly quickly, other times ages.
Stand outside the car, lock usually within 2 minutes or less, then set-up in car and it holds lock without problems, even though the signal will be weaker through the screen.
There is an uncoated area at the top of the screen behind the rear view mirror, place your unit in the middle of your dashboard. More chance of getting signals from sats in front of or to the side.
Make sure you have no programmes running in the background.
Get a lock before setting your route.
I park my car some way from the road and quite often find, when getting a lock, that I'm shown as being in another road which is closer than the one I live. However, when I set off and reach the end of shared drive/my road, it shows me in the exact position.
One final thing, I've found if I have used my unit to navigate to a destination but knowing the return route I switch it off. Next time I use it it takes longer to get a lock. It's like it thinks I'm still at my destination.
Hope some of this has helped.  | 
Linear Mode
