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Old 06-04-2012, 05:46 PM   #2
taylor192
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Join Date: Feb 2012
Location: The Best Place on Earth
Posts: 1,643
My Ride: 2003.5 M3
I'm not sure what the "thunk" is, yet I get a ~500 rpm drop from idle when accelerating in 1st gear. Its not consistent, and there's a million posts on M3Forums with various suggestions yet no definitive answer. Do your RPMs suddenly drop?
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