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      09-10-2018, 06:58 PM   #8
don1234
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Drives: 2018 540i
Join Date: Sep 2018
Location: California

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It only does it after sitting for 8 hrs or more and at first start and fast (1200 rpm) idle. Smooths out as the idle speed drops to normal. No 93 octane gas here. Car has only 1500 miles so haven't had to refill the tank too many times yet but will try another brands of gas. I refuse to believe this is "normal".
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