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I just dropped my car off at my local BMW dealership they told me that BMW NA recommends never changing the transmission oil. Ever. They looked at the records of my CPO car and saw that it was not changed at the 1,200 mile service and today it is in for service at 28,500 and the only oils they are changing are engine and differential. Is this normal?
I also went on a test drive with one of the employees and he agreed with every point I had about the transmission, the notchy 1-2 shift, the clunking noise it makes at low rpms and the vibration above 6,500rpm. I get my car back on Monday and will keep you guys updated.
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