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7 Posts
ive just bought a 2000 zafira 1.6 16v and the temp gauge hardly moves up at all so ive done research and it sounds like my thermostat is stuck open. Ive just ordered a new thermostat and coolant sensor but my coolant is a horrible brown colour, how do i go about replacing the coolant and cleaning the system out before i fit the new thermostat? cheers