20 19.U version showed some abnormal fuel consumption, especially in series 3, and x3 also found some situations. Since 19, 20T vehicles have been replaced by B48tu. The first one to be replaced is Series 3, and the latest X3 is also a TU version. BMW X3 replaced the TU engine from 20 19. BMW (BMW for short) is a German automobile brand and belongs to BMW Group. It has four models, I, X, Z and pure digital, 1, 2, 3 series, and M series improved on the basis of each series.