Went to dealership for coolant change and they filled it with water - Toyota Yaris Forums

tmontague · 03-03-2015, 06:35 PM

seems very odd to me. Where you live you don't need to worry about freezing however, the coolant keeps oxidation down in the cooling system so it doesn't rust out. I also have no idea why they would've topped up the overflow to the neck.

The overflow should be around the Full mark when Hot. A little higher is fine, but at the neck is too high as it will just spill over. I'd go back to the dealership and ask whats going on

03-03-2015, 06:35 PM	#2
tmontague View User's Garage Drives: '08 2zr swapped Vios M/T Join Date: Oct 2012 Location: Caledonia Ont. Posts: 2,938	seems very odd to me. Where you live you don't need to worry about freezing however, the coolant keeps oxidation down in the cooling system so it doesn't rust out. I also have no idea why they would've topped up the overflow to the neck. The overflow should be around the Full mark when Hot. A little higher is fine, but at the neck is too high as it will just spill over. I'd go back to the dealership and ask whats going on