BMW Z3 faulty seat rails causing driver's seat movement after braking on BMW Z3

Some BMW Z3 owners report experiencing issues with faulty seat rails that cause the driver's seat to move unexpectedly after braking. This problem is commonly observed across various Z3 models and can result in the seat rocking or sliding during acceleration and braking, primarily due to the wear of seat rail bushings. To address this issue, some owners consider replacing the seat bushings, although this task can be challenging. Others find that lubricating the seat rails with a suitable grease can alleviate the sensation of sudden movement by ensuring smoother operation. Additionally, owners may need to check for rust, especially if the seat is stuck in a position that impedes movement. Promptly addressing these seat rail issues is crucial, as they not only create discomfort but also pose safety hazards during driving.