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I'm having a very serious issue with my 2013 335 Xdrive. It's either bad seals or bad turbo. The symptoms are extreme oil consumption. Yes, I know it's normal to add a quart or two every 1,000 to 5,000 miles. In my case every 60 to 100 miles. It's crazy! Have my car at the dealer for a 3rd or 4th time in the last 2 months.
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