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Old 08-14-2008, 11:21 AM   #9
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Join Date: Nov 2006
Location: Milpitas
Posts: 521
My Ride: Rover
Originally Posted by rage2 View Post
My alternator voltage regulator flaked out on me last night. I've seen this happen on other E46 M3's, car just dies gracefully. It's a little more eventful in an HPF car. Basically, there's not enough power to the HPF secondary oil pump and it shuts off. When this happens, oil comes through the exhaust and you get quite the smoke show .

Thankfully, a fresh spare battery was enough to drive the car 40km back to the shop.

Oh damn... that is scary. How much is a new alternator voltage regulator? I like to be preventive since my car has 60k miles on it.
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