Quote:
Originally Posted by Lexxani
when I flushed my 117.985 I just removed the drain plug on the lower right of the radiator and let it drain, to remove any left over sediment I added a couppla gallons of distilled water to address any thing left behind as well as to dilute any remaining coolant, filled up with Zerex G-05 (correct coolant for MB's) and mixed 50/50 with distilled water.
I dont believe there is a block drain plug for coolant, but the radiator drain is the easiest and most accessable, you need not even take a jack to the car.
One more thing, does your aux fan work? you'd know if it did, it is a fairly loud. Mine usually doesent engage except when the engine gets really hot during the summer here in florida.
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If there's no block drain for coolant, then that's good and I won't worry about that. I'm still gonna move forward with the citric acid flush. If there's gunk in the coolant spaces or radiator, my understanding is that it'll fix it (or worse, create a leak...risk I'm willing to take; I think).
You know, I think that my aux fan does not work. I think I'll definitely have to look into that.