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My 35is with a little over 3k miles had this problem 3x this month alone, and still with the service center up to now. 1st, solenoid valve was replaced. The 2nd time, they replaced the exhaust vanos unit. 3rd, I still don't know what's the problem. I never felt any difference with the performance or lost of power. The warning message disappears whenever I restart the engine. I am also thinking of faulty sensor, and maybe the after market 8" subwoofer that I added with heavy bass music is the culprit. Could it be?
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