Low coolant need advice on type
My 2017 C63 needs the coolant reservoir topped up. My initial thought was just to fill it with distilled water but I don't know the total volume of the system and don't want to significantly alter the freezing point.
I do have a gallon of VW/Audi coolant which is the same pink color but has no specs listed of what general standards it meets. While it looks the same, is it? Any advice? I don't want to have to buy another gallon for four ounces.
Thanks!
J.




