2008 Mercedes gl450 water pump Part 2 END

[@daverose8772]

Nice video sir... Black RTV in lower radiator hose is not recommended as the RTV has acetic acid in it. (MMM HO) The acid could degrade the factory o-ring. Always change the 0-ring whenever you pull apart these type coolant connectors.

[@daverose8772]

If that is the MB OEM coolant, it does come concentrated. You have to dilute it by 50% distilled water.