I recently changed the automatic transmission in my ti that I bought just before Christmas. The car had a 100,000 miles on the clock at the time. Regardless of what BMW says, no transmission fluid is, "lifetime." The old fluid was slightly brown; more significantly the magnet in the pan was coated thickly with a metallic "paste" ie., tiny metal particles, the product of normal transmission wear. I wasn't having problems before I changed the fluid, but I do think that the car shifts a little smoother. I'm confident that changing the fluid will lengthen the life of the transmission. |