I've been hearing humming noises lately from the cabin and didn't even realize it till I saw this thread. Now it makes sense. I have 218 miles left before I hit 50K. I called up the dealer and made an appt for next Thursday first thing in the AM. Looks like I'll be riding the bike or my other car to work next week to keep the miles down...
2008 e92 328Xi - Daily Driver
M-Tech Lip/ M-side Skirts/ Painted Grille/ 18" LM Reps/ BMS Powerbox/ Koni Sport/ B&G S2 Springs
2008 Nissan Altima Coupe - Show Car; 2009 997 TT; 1995 300ZX SMZ #36