Ican’t seem to find the actual amount of coolant required for a refill, some say 12 litres and some say 15 litres , anybody got a conclusive answer?
When I swapped out my rad a few months ago I bought 15 litres in anticipation of needing that amount to refill it after and it took considerably less - I know you never get it all out but I was surprised by how much less it actually took. Not sure if that helps much