I just purchased a 2000 S430 in the Chicagoland area. It is already cold and when I start the car the navigation system says erro in reading the cd's put new one in. I have a brand new one in there and it still gives me that message. However, after about 25 minutes and the car gets warm inside the navigation system reads the cd and it work fine. I took it to the dealer and they said that it is normal for a delay in the navigation working when it is cold outside. It is still in the 30's in Chicago.

Any ideas.