I had oem nav retrofitted into my E46 03' 330xi a couple of months ago and had purchased a remanufactured MkIV from Bimmernav. Since it's been installed I've had the following issue:
Navigation has been telling me that I have 500 feet until a turn, when it's really more like 50 feet, or 100 feet until a turn when it's more like 10 feet. Thing is, once I get to the turn (or the corner,) it tells me quite accurately to turn when I should be turning (and the number of feet correctly says, "0") It's just over the last 500 or so feet before I get to to a turn that the distance it's telling me to go before the next juncture- is inaccurate. And throughout this all, the arrow always seems accurately placed on the map, so it does in fact seem to correctly know exactly where I am. Funny how if I just take a zero off of the end, it would seem to be correct.. I'm wondering now if it has something to do with faulty wheel speed sensor(s) Anyone heard of this or experienced it? Thanks..