Tune or not 7500 miles which is basically an extra one in between the ones BMW pays for. I would do it for sure with a tune, if it was a lease with no tune, I would probably just do what BMW recommends, but I do mine every 7500 minimum.
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2022 X3M Brooklyn Grey
2008 E93 335i FBO
2012 Mercedes C63 Black Series Alanite Grey
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