Dealer refused to update software for me yesterday although I still can feel a little bit of delay in taking off after 4000 miles. They kept telling me "It's normal". I also brought up the jerky stop problem. Again, they told me it's normal. The technician even told me that all BMW cars have the jerky stop issue because they are designed to stop fast. At the end, I just asked them to do an oil change at my cost. The technician agreed with me that an extra oil change during the free scheduled oil changes is very good to the engine.
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