How much anti freeze do i put in 2.2 liter engine its Citroen rely?

For a 2.2-liter engine in a Citroën Relay, you typically need about 5 to 7 liters of coolant, including the antifreeze and water mixture. It's essential to use a 50/50 mix of antifreeze and water for optimal performance, unless otherwise specified in the owner's manual. Always check the manufacturer's guidelines for the exact specifications and ensure the system is properly purged of air after filling.