i'm set to do a cooling system flush in the very near future. i'm also replacing ALL the cooling system hoses as the majority need it and i'm sick of messing around with my heating/cooling issues. then i'll finally be filling her back up with the zerex g-05 when all is said and done. but my question:

should i do the flush with the old hoses, or replace them and then do the flush? do i risk putting more corroded crap into the block from the hoses or do i risk getting crap out of the block and into my new hoses? is the flush more for the block and the radiator and less for the hoses and therefore should be done with the new hoses? what should i do?

for the 300D in sig.

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