[diesel_mercedes] RE: Coolant and Coolant Flush

 

Citric Acid Powder & Distilled Water works best and is recommended by Ma 'Benz .

One pound of citric acid power mixed into a couple - three gallons of distilled water then run for an hour will do a nice job in most cars .


In your FLAPS you'll find a small yellow plastic bottle of Prestone brand cooling system cleaner , this works O.K. , not as well as Citric Acid Powder but it's easier to find .


After running the cleaner / distilled water mix for an hour or better overnight then to work and of course with the heater FULL ON , you drain it , refill with fresh distilled water then run it a bit longer , drain then re fill with properly mixed coolant .


They now sell pre diluted coolant you simply pour in , no need to worry if you've gotten the correct 60/40 % mix of dilstilled water to coolant .


-Nate



Mike Wrote :

Does anyone have a good detergent to recommend and also an inexpensive coolant to refill for a 71 220D?

I think it is time to get to this.

Thanks a million. Mike.

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