Just had my car serviced. One of the items to be looked at was that the sat nav is out by about 10metres most of the time. I’m about 10 metres past the junction when the map shows level with it. Anyone else experience this? Dealer had no ideas. Receptionist offered to upgrade to DVD V9 to see if that helped. I mentioned (a) that I have V9.0 and (b) the latest is V10. He then informed me that MB are recommending downgrading from V10 to V9 as ‘many’ towns have been omitted from the DVD. Assume he meant from the indexing rather than the map. Said that the list of missing towns was several pages long. MB really do seem to have a major quality problem around navigation which at about £250 for a new DVD is just unacceptable. Not much better than BT phone integration which, judging by recent posts and some personal experience, is a real quagmire.