Replaced the alternator for the second time on my e53. Original equipment lasted 12 years; this one only 5. WTH? And of course, warranty is for only 3 years. Seems like parts quality is getting worse and worse. Anyone else feel my pain??

And what's with the onboard computer not alerting us to a faulty alternator? No check engine light, no battery light, no nothin'. My wife nearly got stranded before I figured it out.