Ben ;
Fist : CONGRATS ! .
I you look up " Citric Acid Coolant Flush " you'll find my DIY How-To , it's prolly also in the files section of the home page .
Be SURE to use ONLY distilled water , NOT tap water ! .
Allow it to work , drive it so it circulates well , I'd leave the windows down and the defrost on high to ensure it cleans the heater core too as the Mercedes heater core is a sediment trap .
Don't be too surprised if the mix turns dead black .
Or if it needs multiple cleanings before it stays clear distilled water for a day or 50 miles at the very least , then it's ready for the final dump and coolant fill .
-Nate
Ben wrote:
>
> Thanks for the feedback Tom. Much appreciated. I ordered 5lbs of
> (kosher for the holiday!) citric acid off fleabay on Sunday, hopefully
> it will be here today or tomorrow. Going to do a full-on citric flush
> then take it from there. Heat is hot so to your point, something is
> clogged. And since the car overheated previous to my buying it (enough
> to condemn the head gasket), this tells me no one did much except drive
> it hot.
>
> Followed the FSM when putting all the parts back together so while
> there's always room for error, I'm pretty sure I did it right. The head
> was totally redone by a machine shop so that's clean. Must be
> block/heater core related. I sent the radiator to the shop to get
> inspected and cleaned so I assume they did what I paid them to do. At
> the very least, once I do the citric it will clean it out.
>
> Nothing is leaking although I do smell a faint smell of coolant inside
> the car on occasion. Wonder if the heater core is bad? Usual tell-tale
> wet carpet on the passenger side is not there. I checked the thermostat
> in a pot of boiling water on the stove and it did open. Someone had
> mentioned using a 75C thermostat off a W107. Might do that also but
> after the citric.
>
> I'll report back. Anyone who has done the citric before, love to have
> some blow-by-blow.
>
> Thanks!
>
> Ben near Detroit
>
> I'll do the citric and
>
>
>
>
No comments:
Post a Comment