I have a 2000 ML430, which has been a execllent car so far. Its had the standard ML little issues like the mass airflow sensor, but nothing major. I have the Navigation option and it typically works great. However, sometimes the screen will freeze when I'm entering an address. To get out of this I have to shut the car off for a few minutes and then re-start. The only other issue I've had with it is that once it was getting the wrong GPS coordinates and for a day showed that my car was somewhere in the middle of the atlantic ocean driving around. I looked at the disc and it is alittle scratched so I think I will get the updated CD and see if that eliminates the problem. Has anyone else had an issue like this? Also, does anyone know what the dealer is getting for and updated CD?