hey all, i just discovered that the P.O. was wrong and I DO have a factory installed block heater. found the cord all wrapped up partly under the car and partly under some AC hoses.

my question is this: can i just start using it or is there some sort of checking i should do before making it a regular start up procedure this winter? i already have a lower coolant hose heater that i installed because i thought this car didn't come with one, but i want the efficiency of the factory heater. i might even run them simultaneously as it gets frigid out here. i'm assuming that because the P.O. didn't know it existed and this is a Florida/Texas car that this heater has never been used. the prongs were pretty dirty and blackened with soot but i cleaned them off and plugged it in to listen and made sure it worked. what's the next step to be safe before using it? thanks!

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1985 300D - 1984 Euro 280E AMG Clone (SOLD) - 1978 280CE (SOLD) - 1983 300D (SOLD) - 1981 300D (SOLD)