Quote:
Originally Posted by Kev0607
The temperature of the radiator hose appears normal then, so your thermostat sounds as if its working okay. If the hose was piping hot to the point where you couldn't touch it, then I'd say your thermostat was dodgy.
It sounds to me like your coolant is old if it has no colour to it as such. My car has a green/blue coolant in the reservoir, but a Volvo specialist changed mine for me. If you're doing it yourself, nip to a dealership & buy genuine Volvo coolant. Its made for the car & then you have no issue of mixing an aftermarket brand with what's already in it.
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Thanks Kev. I tested the coolant with one of those little things that has 3 floating balls in it. When I filled it all 3 balls went to the top of the tube then 1 started sinking slowly back to the bottom. This may be a stupid question ... does coolant have a potential impact on the car's heater???