How do you change battery oN Ford Mondeo mk4?

To change the battery on a Ford Mondeo MK4, first ensure the vehicle is turned off and the key is removed. Open the bonnet and locate the battery; disconnect the negative terminal (black) first, followed by the positive terminal (red). Remove any securing brackets or covers, then lift out the old battery. Place the new battery in position, connect the positive terminal first, followed by the negative terminal, and secure everything back in place.