How do you change the auto fluid in a vauxhall corsa 1.4?

To change the automatic Transmission Fluid in a Vauxhall Corsa 1.4, start by warming up the engine to thin the fluid, then turn it off and ensure the vehicle is on a level surface. Remove the transmission pan or drain plug to let the old fluid drain completely, then replace the filter if applicable. Reinstall the pan or plug, refill the transmission with new fluid through the dipstick tube, and check the level, ensuring it's within the recommended range. Always consult the owner's manual for specific details and fluid specifications.