[C320-list] Coolant in fresh water

[Dave Hupe]

 John-
Leonard should have dropped the coolant level in the tank at least below the level of the bottom of the heat exchanger tube before removing the front rubber cup. That way, coolant would not have leaked out. The exchanger tube is not sealed into the tank .... it is a snug fit but not "sealed" just by fitting into the tank openings. That is why it can be removed by sliding it forward or aft when the rubber cups are removed. 
Without first reducing the coolant level, coolant would be expected to seep out from the tank around the perimeter of the exposed heat exchanger tube.  
Dave Hupe
1994 C320 (#32)
Perkins Perama M30 Engine