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Coolant flush should be included with Maintenance; trans and diff drain/fill is on your dime due to BMW's "lifetime fill" policy. I use a reputable independent shop to do trans and diff drain/fill. 35K miles is a good time to get that done.
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2015 F80 ///M3 Sedan 7DCT Tanzanite, 2022 X3 sDrive30i 8AT Brooklyn Grey |