What sort of radiator coolant should I put in my '84 280E (W123)? I've recently acquired this car, and the previous owner reckons he had the system flushed and the coolant replaced not long before selling (but he did not keep the receipt for the work). The system certainly seems full of clean, bright green fluid but I have no idea what brand/type of coolant it is. Should I be looking to flush this coolant out of the system and replace it with coolant supplied by a Mercedes Benz dealer? Thanks in advance.
Brad