Sat Nav Playing Up

[Ironhorse 874]

I have just purchased a 2010 c5 tourer 2.0 hdi VTR+nav. When we use the sat nav it works for about twenty minutes then the screen goes blank turning the music off and losing phone connection at the same time. After a couple of seconds it switches back on and you have to reprogram sat nav .has anyone else experienced this and does anyone know what the fix is for this

[Wessex Wanderer]

Yup, exactly the same issue on my 2010 VTR+ nav 163. Delaer charged me £80 to "upgrade software". Made no difference.Upgraded it myself to Version R50, still no difference. Have just this week obtained a copy of satnav firmware version 8.31 which according to notes on one of the french sites fixes the  problem but I can't work out how to load it! When I do I'll let you know!

[john h]

£80 for an update, wow, that's what I would pay for a brand new aftermarket sat nav

[Sixchannel]

Did you know you can pick up the latest MYNAV 2014 SD card for £30 on eBay.

I just bought a 2010 C5 VTR+NAV 160 Tourer and have used the new card to replace the original 2009 SD card. So far it works fine.

I can't comment on your actual problem - just thought you should know.

Sixchannel

[peterhogarth]

I have had an 09 for 18 months.  Sat nav worked fine for 6 month then after a blackout it returned but with about a minute delay between position display.  Battery disconnect did not cure and nor did 8.31 software update.   Position is accurate  but remains for a minute.The general street background tends to drift around.  Always shows 9 to 12 satellites . Has anybody had similar fault?