[Mukul]

I have 2012 328i and have noticed a weird behavior lately. My auto start stop function is active. When I stop at light for longer time the engine turns off, and when the it turns back on, my navigation screen goes blank, radio turns off and restarts in 2 seconds.
This is so random that I cannot pin point the exact problem. I had my 30K service last month and they checked battery, reports says voltage is fine.

Anybody has faced similar problem? anybody knows possible cause and solution to this?

Thanks in advance.

-M