Non-phosphate, non-silicate coolant. In the US, that means either DexCool type coolants, which have a reputation for destroying certain plastics, or BMW branded antifreeze, at $22 a gallon.
If you are in Europe, you have some other options. I read that the the BMW brand is made by BASF, which I can't find here in the colonies.
Water
Red, five year, hoat type.
BMW coolant from dealer. It is blue in color and can be purchase fairly cheap at any BMW dealer ship. Around $20 for a gallon. Hope this helps.
What type of coolant should acura rsx take
5 year, HOAT type.
Red five year, hoat type.
mercon III
Red, 5 year, HOAT type
Red, 5 year, HOAT type
If you asking about the engine type, the 325i is a straight-six not a V4.
Red 5 year 100,00 mile type.
2005 f250 needs the pink antifreeze if you use the green stuff you will gum up the engine and cause seriuos damage