Mercedes Benz Part # 000 989 10 25

[lino]

I am getting ready to do a cooling system flush and was interested in a product I saw in a previous thread (red arrow pointing to the smaller bottle which is the Lemon Acid):


Mercedes Benz Part # 000 989 10 25
Price: $27.60 Canadian tax included

Is there a recommended cheaper alternative?

[Kestas]

This product sounds suspiciously similar to citric acid. Citric acid is available from Prestone, called either SuperFlush or something else. Next time you're at the auto parts store, check the ingredients of the available flush products and look for citric acid.

[MrCjames]

The citric flush is utilized on engines that had an oil mixing with coolant issue. If you find your cooling system contaminated with oil this would be a good choice for clearing that oily froth from the cooling system.

[Kestas]

I disagree. Oily residue is flushed out using a detergent. Some have reported using Shout, Dawn, or any number of non-chlorinated, non-abrasive detergents as a flushant for oily residue. Citric acid flushes are designed to remove hard deposits, such as corrosion. We use citric acid in the lab to remove light rust from steel without attacking the base steel.

[lino]

Originally Posted by MrCjames

The citric flush is utilized on engines that had an oil mixing with coolant issue. If you find your cooling system contaminated with oil this would be a good choice for clearing that oily froth from the cooling system.

Mercedes says:
Oil in cooling system, use Alkaline cleaner: disodiumtrixosilicate-pentahydrate.
Part number is 001 986 21 71 (500 grams)

[MrCjames]

I am mistaken, Thank You for the clarification.

[lino]

bump...