Have a Apr 2010 production month 2011 model that I bought new in May 2012. I have 42k miles, very little of which was true city-type stop-and-go. Some long road trips, a couple of days at the track, and hammering it a lot. No indications of CBU just yet in terms of codes (likely spurious if they come) or mileage changes or performance downgrades.
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2021 X3 M40i: M Sport Differential, Adaptive M Suspension.
Previous BMWs: 1971 BMW 2002, 1973 BMW R75/5, and 2011 BMW 335d
Previous Other Vehicles: '67 Cougar, '70 911e, '86 Jetta Diesel, '05 and '12 Foresters, et al.
Last edited by 335dFan; 02-04-2015 at 11:47 AM..
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