Coolant Flush

The coolant in your engine serves three important purposes. One is to protect your engine from damage by freezing, especially in extreme situations such as we experienced with the Atlanta Ice Storms in January of 2018. The second is to keep the engine cool, and in the searing Atlanta summer heat that can be far more important. The third is just as important, and that is to protect the engine from corrosion. One specific measure of protection is pH; if you have ever had a swimming pool, then you know about pH.

pH is a measure of the acidity or alkalinity of a solution on a scale of 0-14. Liquids with a pH less than seven are considered acidic, while those with a pH greater than seven are considered basic (alkaline). A pH of 7.0 is neutral (like pure water).

The coolant pH in your BMW starts at 8.5 and, after a couple years, will dip into the 6 range; at this point it’s doing more harm than good. Gaskets, hoses and seals are no longer being protected- they’re being eaten! It’s a slow process, but irreversible. It’s very important to replace the coolant with the correct type every three years or so. At Munich Motorsport, we use factory zero phosphate coolant, and can replace it in about an hour with an appointment- just give us a call or schedule an appointment online.




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