Today I replaced the radiator hoses, heater hoses, and thermistat on my 1984, 300D Turbo. After checking all the connections I refilled the coolant resevoir (there is no actual cap in the radiator) and restarted the engine. I soon realized that there was no coolant going throught the radiator or heater hoses.

There must be an additional way to refill the coolant that I don't know about. Can anyone give me some advice on what I should do?

Thanks