What Type of Antifreeze & Coolant for Peugeot 206. How Much cararac›Coolant›PeugeotRecommended antifreeze for radiators of Peugeot 206. Find out how much coolant does your car need. Car A Rac presents recommended by manufacturers types for all popular vehicles. How to Add Coolant: Peugeot 206 (2000-2005) 2004 Peugeot Click to view0:13Adding engine coolant (also known as antifreeze) to your 2004 Peugeot 206 is pretty easy. Engine coolant circulates through your engine to keep it cool in the summer but won't freeze in the winter. Make sure to check your engine when it is cold for an accurate reading.