Yes, it takes a 50/50 mix.
To change the antifreeze on a Mercedes, locate the drain plug on the bottom of the radiator. Drain the fluid into a pan and refill it.
Red, 5 year HOAT type.
Usually a drain plug at bottom of radiator
Drain antifreeze from the petcock at the bottom of the radiator.Fill antifreeze at the filler neck on top of the radiator.Top-off antifreeze by filling the overflow tank to the "F" lineDispose of antifreeze at your local Advance Auto Parts, free of charge.Stocker @ rdtiburon.comDavid @ votefordavid.blogspot.com
Extended Life Antifreeze which you can get at any retail locations
From the drain plug located at the bottom of the radatior
On the bottom of the radiator is a large drain plug.
Open the drain plug on the bottom of the radiator.
How do you know it is "Contaminated". You can't decontaminate antifreeze simply drain and then flush the system, then drain and rinse and drain again, then fill to the correct mixture ratio. Hope This Helps.
at the bottom of radiator
You drain it out and replace with new.