e70 NAV Screen blacking out - question

[GrantS]

The NAV screen in my 2007 X5 4.8 has done the blackout thing a few times in the past (mostly when its cold, as others have noted). About a month ago, it was in for some other service, I asked them to look at it.. dealer said there was no error codes in the system, and they could not reproduce the problem.

I was charged about $100-120 for a software update, and this past weekend, about 3 weeks after the software update, the screen went black and would not turn back on. It was at the dealer yesterday, and I'm told it needs a new system.

The X5 has approx 58,000 miles. I've had it about 1 year. The dealer said they would speak with BMW about getting 'assistance' for the approx $3k cost for part and labor.

As much as I love this car - in the year I've had it, I've had the pleasure of driving multiple new BMW loaners. The car has a CPO warranty, and factory maint, which should help keep maint costs down, but having to spend 3k on a NAV screen before 60k miles is unacceptable. Can anyone offer suggestions for how to approach this with the dealer should BMW choose not to help??

Thanks for any advice or info!

Sean -