Hi All,

Yes I know there are plenty of threads on changing the thermostat but my question is - is it absolutely neccessary to drain all the coolant? Can it just be topped up afterwards?

Im not the most mechanically minded person but after reading the DIY threads, it looks quite easy - its just the coolant part im not quite sure on.

I am changing the thermo because the needle rarely moves off 'C' and vtec is not coming on sometimes.


Thanks