How do you drain Jaguar XJS transmission fluid?

To drain the Transmission Fluid from a Jaguar XJS, start by ensuring the vehicle is on a level surface and secure it with jack stands. Remove the transmission pan bolts, carefully lowering the pan to let the old fluid drain into a container. Once drained, clean the pan and replace the filter if necessary before reassembling the pan and adding new fluid through the dipstick tube. Finally, check the fluid level and ensure there are no leaks.