Dealer doesn't seem to be much help. CD based nav system in a 2004 C230K. Symbol for car on map is way off of actual location. I'm on the freeway, the system thinks I exited... why because it wanted me to? It lags about 300 feet behind the actual location, so it tells me to turn after I already have. It shows me on the freeway when I have exited and vice versa. Today it told me I arrived at my destination and I was 2 streets away, so with each turn it told me again. Why is the system so far off? Satellite shows 7, MBUSA says below 3 it becomes inaccurate. What are they missing. This thing is going to kill me if I actual do what it says. Help!
Oh, I've already been through the recalibrate from front to rear tires, that has neither any validity nor impact. I'm in the #1 lane of a 5 lane freeway and the system tells to to turn right in 1000 feet and I've already past that exit. Because of this, if I make short turns on small streets, it has me on the wrong streets... can't catch up. They just think I would be happier with a DVD based system, but it's too late, not an option. Thanks.