Cooling issues 21015R20

[crider]

Hi all
In my brand new 2015 R20 Runs fine, but after running it for any length of time I have antifreeze in the bilge. The overflow/fill tank ends up being too full while running and spews out the top. My antifreeze mixture strength has gone from minus 30 degree celcius to 5 below celcius. Operating temperature is good at 160. Too far from a dealer to bring it in. any ideas?

[JCP]

Since it is not running hot, I would replace the pressure cap or have it pressure tested. It could be bypassing coolant at a lower pressure than it should be.

[crider]

Thanks for the input.

Since it is not running hot, I would replace the pressure cap or have it pressure tested. It could be bypassing coolant at a lower pressure than it should be.

Thanks for the reply. I wonder how coolant could be added to the the fill tank.Is it possible it could be the heat exchanger?

[JCP]

Does the coolant level drop back down after cooling off or does it remain overfull? Has the coolant become diluted without topping it off with water?

[crider]

coolant level stays high and coolant is getting diluted

[JCP]

I think you are probably correct thinking heat exchanger. It should be a warranty item unless it has freeze damage.