Mine makes that noise occasionally. It has for many years, perhaps 7 or 8 at least. It seems to happen more often in cold weather. I never have been able to attribute that to anything, but weak battery does seem to fit in my case as The car is not driven often, and I don't keep it on a tender all the time. I have been expecting it to fail for a long time.....
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2000 Black 996 Aero, 2001 Forest Green Boxster S, 94 Midnight Blue 968 Cab, 1980 Pongee Beige 911SC Weissach Edition, 2004 BMW R1200CLC
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