Quote:
Originally Posted by Clan
you only need to unscrew the drain plug in the bottom of the radiator with a 6 mm allen key a couple of turns for the coolant to flow out . if it doesnt there must be a lot of dirt in there caused by poor coolant over the years .
I assume you took the coolant bottle cap off to let the air in?
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Thanks, Clan - I was expecting allen bolt or small hex for the drain plug (my P2 V70 had that) but this one has a different type of drain plug which you undo by hand, or use a pair of pliers to crack it, then by hand.
I found this video since which is the same type as mine, but it does look a bit fragile so not sure I'd fancy putting too much force on it. The chap in the video seems to pull it out a little too, perhaps that's what's needed?
https://www.youtube.com/watch?v=_U5wO2dVu_I
Yes, I had the coolant tank lid off at the time. Draining via the bottom hose instead, what came out was in pretty good order no major silt or debris, but it had discoloured and presumably lost it's corrosion inhibiting properties which is why I wanted to change it.