â–ºShop the Products used: https://hubs.ly/H0cSX2V0 SUBSCRIBE: https://hubs.ly/H0cDnfN0 Over time, the plastic expansion tank in your Mercedes Benz can become brittle and crack, leading to a coolant leak. Replacing the expansion tank is a relatively quick and inexpensive job. Nate shows you the replacement procedure for an expansion tank on your W209. In this video, he […]