Knock value up on 7 is worrisome but not necessarily a problem. Compression test will tell more. I'm not sure if it's a problem with these engines but a worn out cam lobe is something to keep in mind. Strange that 2 misfire codes and the alternator code got set at the same mileage and the adaptive headlite code 5 miles later.
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1988 325is (purchased new) sold
2004 X5 3.0 2005 X3 2.5
2008 X5 3.0 (new to me)
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