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750i o-ring failure

  1. 7 Series - E65 / E66 (2002 - 2008)
    I have this issue on my car and of course this is after my warrant expires. Anyone who's had this same issue knows its a big job and costly if not under warranty. I'm trying to find out if it this is a common issue with this car. How many bimmerfest folks have had this happen? I was thinking...
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