Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
The M540i utilizes a Getrag Type D six-speed manual gearbox with the following ratios: 4.23 (1), 2.51 (2), 1.67 (3), 1.23 (4), 1.00 (5), .83 (6). This is mated to a 2.93:1 axle ratio and a limited slip differential, except on those examples equipped with the optional ASC+T tracrtion control system, which have an open differential.
