Originally posted by gillybenztech
The first DVD Nav I installed in an ML gave the same message. I simply did as it said, I drove it around a few miles (on roads which were on the map) and it started to work fine. It looks good, I see you have good satellite signal. Go into the Nav info and see how many sat's your are receiving.
I drove around for aprox 15 miles each time 3x
Still no voice prompts and can't navigate to an address.
Someone told me that I have used a 2001 MCS instead of a 2000 MCS and this could be the problem. Supposedly the 2001 MCS needs to be Version coded and there is now way to do that on a 1998 ML
Looks like I will be looking for another MCS from a 2000 ML!